/* ═══════════════════════════════════════════════════════════════════════════
   ScholarFlow Design System v4
   A refined, first-class academic identity for scholarflow.ca
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── 1. Design Tokens ────────────────────────────────────────────────────── */

:root {
  /* Typography */
  --sf-font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sf-font-sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --sf-font-brand: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --sf-font-mono: "SFMono-Regular", Consolas, Monaco, "Liberation Mono", monospace;

  /* Spacing scale */
  --sf-space-1: 0.25rem;
  --sf-space-2: 0.5rem;
  --sf-space-3: 0.75rem;
  --sf-space-4: 1rem;
  --sf-space-5: 1.5rem;
  --sf-space-6: 2rem;
  --sf-space-8: 3rem;
  --sf-space-10: 3.5rem;
  --sf-space-12: 5rem;

  /* Border radius */
  --sf-radius-sm: 6px;
  --sf-radius-md: 10px;
  --sf-radius-lg: 16px;
  --sf-radius-xl: 24px;
  --sf-radius-full: 9999px;

  /* Shadows */
  --sf-shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.08);
  --sf-shadow-md: 0 4px 6px rgba(0,0,0,0.04), 0 2px 8px rgba(0,0,0,0.08);
  --sf-shadow-lg: 0 10px 20px rgba(0,0,0,0.06), 0 6px 12px rgba(0,0,0,0.08);
  --sf-shadow-xl: 0 20px 40px rgba(0,0,0,0.08), 0 12px 24px rgba(0,0,0,0.10);
  --sf-shadow-glow: 0 0 20px rgba(74,111,165,0.15);

  /* Transitions */
  --sf-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --sf-transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --sf-transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light mode palette */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #2d4a6f;
  --md-accent-fg-color: #c45c3e;
  --md-default-fg-color: #1a1d23;
  --md-default-fg-color--light: #4a5568;
  --md-default-fg-color--lighter: #718096;
  --md-default-bg-color: #fafbfc;
  --md-typeset-color: #2d3748;

  /* ScholarFlow custom tokens */
  --sf-surface: #ffffff;
  --sf-surface-elevated: #ffffff;
  --sf-surface-subtle: #f1f5f9;
  --sf-border: #e2e8f0;
  --sf-border-strong: #cbd5e1;
  --sf-text-primary: #1a2332;
  --sf-text-secondary: #3d5a80;
  --sf-text-tertiary: #5a7a9c;
  --sf-accent: #c45c3e;
  --sf-accent-light: #e07a5f;
  --sf-accent-dark: #a04025;
  --sf-primary: #2d4a6f;
  --sf-primary-light: #4a6fa5;
  --sf-primary-dark: #1e3a5f;
  --sf-link-hover: #f4a261;
  --sf-brand-scholar: #e67a2e;
  --sf-brand-flow: #2e7bff;
  --sf-brand-research: #0c1014;
}

/* Dark mode palette */
[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #1e2029;
  --md-accent-fg-color: #e07a5f;
  --md-default-fg-color: #f7fafc;
  --md-default-fg-color--light: #a0aec0;
  --md-default-fg-color--lighter: #718096;
  --md-default-bg-color: #1a1d23;
  --md-typeset-color: #e2e8f0;

  /* ScholarFlow custom tokens */
  --sf-surface: #22262d;
  --sf-surface-elevated: #2d333b;
  --sf-surface-subtle: #1e2227;
  --sf-border: #374151;
  --sf-border-strong: #4b5563;
  --sf-text-primary: #f7fafc;
  --sf-text-secondary: #cbd5e1;
  --sf-text-tertiary: #a0aec0;
  --sf-accent: #e07a5f;
  --sf-accent-light: #f0937a;
  --sf-accent-dark: #c45c3e;
  --sf-primary: #87a8d8;
  --sf-primary-light: #a8c4e8;
  --sf-primary-dark: #5d82b5;
  --sf-link-hover: #f6ad7b;
  --sf-brand-scholar: #f18a3d;
  --sf-brand-flow: #8cc3ff;
  --sf-brand-research: #f2f5f8;
}

/* ── 2. Base & Typography ───────────────────────────────────────────────── */

html {
  overflow-y: scroll;
  scroll-behavior: smooth;
}

body {
  --md-text-font: "Playfair Display";
  --md-code-font: "SFMono-Regular";
  --md-text-font-family: var(--sf-font-serif);
  --md-code-font-family: var(--sf-font-mono);
  font-family: var(--sf-font-serif);
}

.md-header,
.md-nav,
.md-tabs,
.md-sidebar,
.md-search,
.md-search__input,
.md-button,
.md-footer,
.sf-footer,
.sf-footer p,
.sf-footer a,
.sf-footer button,
.sf-footer span,
.sf-footer li,
.sf-btn,
.sf-cite-toggle,
.sf-cite-option,
.sf-share-toggle,
.sf-share-option,
.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  font-family: var(--sf-font-sans);
}

.md-typeset {
  font-family: var(--sf-font-serif);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--sf-text-secondary);
  font-weight: 400;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.md-typeset p {
  margin-bottom: 1.4em;
  text-rendering: optimizeLegibility;
}

.md-typeset h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.3em;
  color: var(--sf-text-primary);
}

.md-typeset h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 1.6em;
  margin-bottom: 0.4em;
  color: var(--sf-text-primary);
  border-bottom: 1px solid var(--sf-border);
  padding-bottom: 0.3em;
}

.md-typeset h3 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-top: 1.5em;
  margin-bottom: 0.4em;
  color: var(--sf-text-primary);
}

.md-typeset h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 1.2em;
  margin-bottom: 0.3em;
  color: var(--sf-text-primary);
}

/* ── 3. Header ───────────────────────────────────────────────────────────── */

/* Header bar */
.md-header {
  background: linear-gradient(135deg, #1a1d23 0%, #1e293b 100%) !important;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18) !important;
  border-bottom: 1px solid rgba(255,255,255,0.06) !important;
  position: relative !important;
}

/* Inner flex layout: left | center | right */
.md-header__inner {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  padding: 0.15rem 0.4rem !important;
}

.md-header__title {
  min-width: 0 !important;
}

/* Logo SVG (legacy fallback) */
.md-header__button.md-logo {
  color: #ffffff !important;
}
.md-header__button.md-logo svg {
  fill: currentColor !important;
  width: 1.4rem !important;
  height: 1.4rem !important;
}

/* Site wordmark */
.md-header__topic .md-ellipsis {
  font-family: var(--sf-font-serif) !important;
  font-size: 1.2rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.02em !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   SCHOLARFLOW IDENTITY LOCKUP — PROTECTED, SELF-CONTAINED BRAND CSS.
   These selectors intentionally target only .sf-brand-lockup descendants in
   the custom header/footer. Do not route these rules through shared pills,
   badges, headings, tabs, footer utilities, or Material theme selectors.
   ═══════════════════════════════════════════════════════════════════════════ */

/* Left group: hamburger + brand */
.sf-header-left {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-width: 0;
  flex: 0 1 auto;
}

/* Right group: palette + search */
.sf-header-right {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  position: relative;
  z-index: 4;
}

.sf-brand-lockup {
  display: inline-grid;
  align-items: center;
  min-width: 0;
  line-height: 1;
  text-decoration: none;
}

.sf-brand-lockup:hover {
  text-decoration: none;
}

.sf-brand-lockup .sf-brand-lockup__image {
  grid-area: 1 / 1;
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  image-rendering: auto;
}

.sf-brand-lockup--header {
  width: clamp(13.5rem, 26vw, 19.75rem);
  max-width: calc(100vw - 8.75rem);
}

.sf-brand-lockup--footer {
  width: clamp(8.5rem, 18vw, 12rem);
}

.sf-accent-colab {
  color: var(--sf-primary-light) !important;
}

@media (max-width: 640px) {
  .md-header__inner {
    min-height: 3.2rem;
    padding: 0.22rem 0.28rem !important;
  }

  .sf-header-left {
    gap: 0.18rem;
    flex: 1 1 auto;
  }

  .sf-header-left .md-header__button.md-icon {
    margin: 0;
    padding: 0.4rem;
  }

  .sf-header-right {
    flex: 0 0 auto;
    gap: 0;
  }

  .sf-brand-lockup--header {
    width: clamp(10.75rem, 54vw, 15rem);
    max-width: calc(100vw - 8.4rem);
  }

  .sf-search-pill {
    width: 2.15rem;
    height: 2.15rem;
    justify-content: center;
    padding: 0;
  }
}

@media (max-width: 480px) {
  .sf-brand-lockup--header {
    max-width: calc(100vw - 8rem);
  }
}

@media (max-width: 360px) {
  .sf-header-right .md-header__option {
    display: none;
  }

  .sf-brand-lockup--header {
    width: 10rem;
    max-width: calc(100vw - 7.8rem);
  }
}

/* ── END SCHOLARFLOW IDENTITY LOCKUP ─────────────────────────────────────── */

/* Hide the scrolling page-title topic */
.md-header__topic[data-md-component="header-topic"] {
  display: none !important;
}

/* Header icon buttons — gentle visual-only treatment */
.md-header__button.md-icon,
.md-header__button.md-logo {
  color: #ffffff !important;
  border-radius: 50% !important;
  transition: background-color 0.2s ease !important;
}

.md-header__button.md-icon:hover,
.md-header__button.md-logo:hover {
  background-color: rgba(255,255,255,0.1) !important;
}

/* Palette toggle */
.md-header__option .md-header__button.md-icon {
  background-color: transparent !important;
}

/* Search pill */
.sf-search-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--sf-radius-full);
  color: rgba(255,255,255,0.75);
  font-family: var(--sf-font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  margin-left: 0.3rem;
}

.sf-search-pill:hover {
  background: rgba(0,0,0,0.5);
  border-color: rgba(255,255,255,0.2);
  color: #ffffff;
}

.sf-search-pill svg {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
  flex-shrink: 0;
}

@media screen and (max-width: 480px) {
  .sf-search-pill {
    padding: 0.35rem;
  }
}

/* Search expands from the header pill instead of opening a square modal. */
.md-header .md-search {
  position: absolute;
  top: 0.42rem;
  /* Align with the centered 1200px grid; on narrow viewports fall back to 0.4rem */
  right: max(0.4rem, calc(50% - 600px + 0.4rem));
  z-index: 5;
  width: clamp(10rem, 24vw, 18rem);
  min-width: 0;
  max-width: calc(100vw - 1.6rem);
  box-sizing: border-box;
  opacity: 0;
  pointer-events: none;
  transform: scaleX(0.24);
  transform-origin: right center;
  transition:
    opacity 0.18s ease,
    transform 0.24s cubic-bezier(0.2, 0.8, 0.2, 1);
}

[data-md-toggle="search"]:checked ~ .md-header .md-search {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0) scaleX(1);
}

[data-md-toggle="search"]:checked ~ .md-header .sf-search-pill {
  opacity: 0;
  pointer-events: none;
}

.md-header .md-search__overlay {
  display: none !important;
}

.md-header .md-search__inner {
  position: static !important;
  float: none !important;
  width: 100% !important;
  height: auto !important;
  max-width: none !important;
  padding: 0 !important;
  overflow: visible !important;
}

.md-header .md-search__form {
  display: flex;
  align-items: center;
  width: 100% !important;
  height: 2.05rem !important;
  min-height: 2.05rem !important;
  border: 1px solid var(--sf-border) !important;
  border-radius: var(--sf-radius-full) !important;
  background: var(--sf-surface) !important;
  box-shadow: 0 0.45rem 1.4rem rgba(0,0,0,0.26) !important;
  overflow: hidden;
}

.md-header .md-search__form > .md-search__icon,
.md-header .md-search__options {
  display: none !important;
}

.md-header .md-search__input {
  width: 100% !important;
  height: 2.05rem !important;
  min-height: 2.05rem !important;
  padding: 0 1rem !important;
  border-radius: var(--sf-radius-full) !important;
  background: transparent !important;
  font-family: var(--sf-font-sans) !important;
  font-size: 0.82rem !important;
  color: var(--sf-text-primary) !important;
}

/* Search placeholder — muted, smaller, sans-serif */
.md-header .md-search .md-search__input::-webkit-input-placeholder {
  color: var(--sf-text-tertiary);
  font-family: var(--sf-font-sans);
  font-size: 0.72rem;
  opacity: 1;
}

.md-header .md-search .md-search__input::-moz-placeholder {
  color: var(--sf-text-tertiary);
  font-family: var(--sf-font-sans);
  font-size: 0.72rem;
  opacity: 1;
}

.md-header .md-search .md-search__input:-ms-input-placeholder {
  color: var(--sf-text-tertiary);
  font-family: var(--sf-font-sans);
  font-size: 0.72rem;
}

.md-header .md-search .md-search__input::placeholder {
  color: var(--sf-text-tertiary);
  font-family: var(--sf-font-sans);
  font-size: 0.72rem;
  opacity: 1;
}

.md-header .md-search__output {
  display: none;
  margin-top: 0.35rem;
  border-radius: var(--sf-radius-md);
  box-shadow: var(--sf-shadow-xl);
  overflow: hidden;
}

.md-header .md-search:has(.md-search__input:not(:placeholder-shown)) .md-search__output {
  display: block;
}

.md-header .md-search-result__meta {
  display: none !important;
}

/* ── Search Results Styling ──────────────────────────────────────────────── */

.md-header .md-search__output {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
}

.md-header .md-search-result__list {
  font-family: var(--sf-font-sans);
  padding: 0;
  margin: 0;
  list-style: none;
}

.md-header .md-search-result__item {
  border-bottom: 1px solid var(--sf-border);
}

.md-header .md-search-result__item:last-child {
  border-bottom: none;
}

.md-header .md-search-result__link {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--sf-text-primary);
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.md-header .md-search-result__link:hover {
  background: var(--sf-surface-subtle);
}

.md-header .md-search-result__article {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.2rem;
}

.md-header .md-search-result__teaser {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--sf-text-secondary);
}

.md-header .md-search-result mark {
  background: var(--sf-accent-light);
  color: var(--sf-text-primary);
  border-radius: 2px;
  padding: 0 2px;
}

@media screen and (max-width: 760px) {
  .md-header .md-search {
    top: calc(100% + 0.35rem);
    right: 0.5rem;
    left: 0.5rem;
    width: auto;
    min-width: 0;
    max-width: none;
  }
}

/* ── Tabs (unified with header aesthetic) ───────────────────────────────── */

.md-tabs {
  background: transparent !important;
  border-bottom: 1px solid var(--sf-border) !important;
  box-shadow: none !important;
}

.md-tabs__list {
  margin: 0 !important;
  padding: 0 0.5rem !important;
  gap: 0.15rem;
}

.md-tabs__item {
  height: auto !important;
  padding: 0 !important;
}

.md-tabs__link {
  font-family: var(--sf-font-sans) !important;
  font-size: 0.78rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.06em !important;
  text-transform: uppercase !important;
  color: var(--sf-primary) !important;
  padding: 0.55rem 0.8rem !important;
  margin-top: 0 !important;
  border-radius: var(--sf-radius-sm) !important;
  transition: color 0.2s ease, background-color 0.2s ease !important;
  opacity: 1 !important;
}

.md-tabs__link:hover {
  color: var(--sf-primary-dark) !important;
  background: rgba(45, 74, 111, 0.08) !important;
}

.md-tabs__item--active .md-tabs__link {
  color: var(--sf-primary-dark) !important;
  background: rgba(45, 74, 111, 0.1) !important;
  position: relative;
}

/* Active tab: thick orange→blue gradient underline */
.md-tabs__item--active .md-tabs__link::after {
  content: "" !important;
  position: absolute !important;
  bottom: 2px !important;
  left: 0.8rem !important;
  right: 0.8rem !important;
  height: 3px !important;
  background: linear-gradient(90deg, var(--sf-accent) 0%, var(--sf-accent-light) 50%, var(--sf-primary-light) 100%) !important;
  border-radius: 2px !important;
}

/* Dark mode */
[data-md-color-scheme="slate"] .md-header {
  background: linear-gradient(135deg, #0f1117 0%, #1a1d23 100%) !important;
  border-bottom-color: rgba(255,255,255,0.04) !important;
}

[data-md-color-scheme="slate"] .md-tabs {
  background: transparent !important;
  border-bottom-color: rgba(255,255,255,0.06) !important;
}

[data-md-color-scheme="slate"] .md-tabs__link {
  color: rgba(255,255,255,0.7) !important;
}

[data-md-color-scheme="slate"] .md-tabs__link:hover {
  color: #ffffff !important;
  background: rgba(74, 111, 165, 0.18) !important;
}

[data-md-color-scheme="slate"] .md-tabs__item--active .md-tabs__link {
  color: #ffffff !important;
  background: rgba(74, 111, 165, 0.22) !important;
}

/* ── 4. Layout & Background ─────────────────────────────────────────────── */

.md-main {
  position: relative;
  background: var(--md-default-bg-color);
}

.md-main::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse 80% 60% at 90% 10%, rgba(74,111,165,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 10% 90%, rgba(196,92,62,0.02) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.md-content__inner {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--sf-space-4) var(--sf-space-5) var(--sf-space-5);
}

/* Tame MkDocs Material layout — full width, no wasted columns */
.md-grid {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* REMOVED: display: block was breaking Material's grid and causing sidebar bleed */
.md-main__inner {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 0 !important;
}

.md-content {
  margin-left: auto !important;
  margin-right: auto !important;
  max-width: 100%;
}

.md-sidebar--secondary {
  display: none !important;
}

/* ── Sidebar / Drawer overrides ─────────────────────────────────────────── */

/* Base: sidebar is always a drawer (hidden off-screen by default).
   The hamburger toggle slides it in on ALL viewports. */
.md-sidebar--primary {
  position: fixed !important;
  top: 0;
  left: 0 !important;
  width: 280px;
  height: 100vh;
  transform: translateX(-100%) !important;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 300;
  background: var(--md-default-bg-color);
  border-right: 1px solid var(--sf-border);
  box-shadow: none;
}

/* Show drawer when checkbox is checked — ALL viewports */
.md-toggle[data-md-toggle="drawer"]:checked ~ .md-container .md-sidebar--primary,
.md-toggle[data-md-toggle="drawer"]:checked ~ .md-sidebar--primary {
  transform: translateX(0) !important;
}

.md-sidebar--primary .md-sidebar__scrollwrap,
.md-sidebar--primary .md-sidebar__inner,
.md-sidebar--primary .md-nav,
.md-sidebar--primary .md-nav__list,
.md-sidebar--primary .md-nav__item {
  background: transparent !important;
}

.md-sidebar--primary .md-sidebar__inner {
  padding: var(--sf-space-4) var(--sf-space-2);
}

.md-sidebar--primary .md-nav__title {
  display: none !important;
}

.md-sidebar--primary .md-nav__list {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0 0.5rem;
}

.md-sidebar--primary .md-nav__link {
  align-items: center;
  border: 0 !important;
  border-radius: var(--sf-radius-sm);
  box-shadow: none !important;
  color: var(--sf-primary) !important;
  font-family: var(--sf-font-sans) !important;
  font-size: 0.78rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.06em !important;
  margin: 0;
  min-height: auto;
  opacity: 1 !important;
  padding: 0.55rem 0.8rem 0.55rem 1rem !important;
  position: relative;
  text-decoration: none;
  text-transform: uppercase !important;
  transform: none !important;
  transition: color 0.2s ease, background-color 0.2s ease !important;
}

.md-sidebar--primary .md-nav__link:hover,
.md-sidebar--primary .md-nav__link:focus-visible,
.md-sidebar--primary .md-nav__link--active,
.md-sidebar--primary .md-nav__item--active > .md-nav__link {
  box-shadow: none !important;
  text-decoration: none;
  transform: none !important;
}

.md-sidebar--primary .md-nav__link--active::after,
.md-sidebar--primary .md-nav__item--active > .md-nav__link::after {
  content: "" !important;
  position: absolute !important;
  top: 0.45rem !important;
  bottom: 0.45rem !important;
  left: 0.28rem !important;
  width: 3px !important;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-accent-light) 50%, var(--sf-primary-light) 100%) !important;
  border-radius: 2px !important;
}

@media screen and (max-width: 768px) {
  .md-content__inner {
    padding: var(--sf-space-5) var(--sf-space-4);
  }
}

/* ── 5. Hero Section ─────────────────────────────────────────────────────── */

.sf-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--sf-space-10) var(--sf-space-5);
  margin: -0.75rem calc(-1 * var(--sf-space-5)) var(--sf-space-8);
  background: linear-gradient(160deg, var(--sf-surface-subtle) 0%, var(--sf-surface) 100%);
  border-bottom: 1px solid var(--sf-border);
  position: relative;
  overflow: hidden;
}

.sf-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(74,111,165,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.sf-hero-avatar {
  width: 140px;
  height: 140px;
  border-radius: var(--sf-radius-full);
  object-fit: cover;
  border: 4px solid var(--sf-surface);
  box-shadow: var(--sf-shadow-lg), 0 0 0 1px var(--sf-border);
  margin-bottom: var(--sf-space-5);
  transition: transform var(--sf-transition-base), box-shadow var(--sf-transition-base);
}

.sf-hero-avatar:hover {
  transform: scale(1.03);
  box-shadow: var(--sf-shadow-xl), 0 0 0 1px var(--sf-border-strong);
}

.sf-hero-name {
  font-family: var(--sf-font-sans);
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--sf-text-primary);
  margin: 0 0 var(--sf-space-2);
  line-height: 1.2;
}

.sf-hero-title {
  font-family: var(--sf-font-sans);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--sf-text-secondary);
  margin: 0 0 var(--sf-space-1);
}

.sf-hero-affiliation {
  font-family: var(--sf-font-sans);
  font-size: 0.95rem;
  color: var(--sf-text-tertiary);
  margin: 0 0 var(--sf-space-6);
}

.sf-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sf-space-3);
  justify-content: center;
  margin-bottom: var(--sf-space-6);
}

.sf-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-2);
  padding: var(--sf-space-2) var(--sf-space-4);
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-full);
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--sf-text-secondary);
  box-shadow: var(--sf-shadow-sm);
  transition: all var(--sf-transition-fast);
}

.sf-badge:hover {
  border-color: var(--sf-primary-light);
  color: var(--sf-primary);
  transform: translateY(-1px);
}

.sf-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sf-space-3);
  justify-content: center;
}

/* ═══════════════════════════════════════════════════════════════════════════
   UNIFIED PILL SYSTEM — 4-STATE CONTRAST MATRIX
   
   Reference designs:
   - Light mode: "Meet the Researchers" (homepage hero) — subtle bg, soft blue text
   - Dark mode: "View Full Profile" (people page) — dark blue bg, white text
   
   Every pill has an Off state and an On (hover) state × 2 modes = 4 states.
   All colours are drawn from the house palette above.
   
   PRIMARY (card-contained main actions: Read Essay, Read Full Text, etc.)
   ┌─────────┬──────────────────┬──────────┬──────────────────┬──────────┐
   │         │ Light Mode Off   │          │ Dark Mode Off    │          │
   │ Primary │ BG: #f1f5f9      │ #4a6fa5  │ BG: #3d5a80      │ White    │
   │         │ Border: #cbd5e1  │ text     │ Border: #3d5a80  │ text     │
   ├─────────┼──────────────────┼──────────┼──────────────────┼──────────┤
   │         │ Light Mode On    │          │ Dark Mode On     │          │
   │ Primary │ BG: #4a6fa5      │ White    │ BG: #2d3a4f      │ White    │
   │         │ Border: #4a6fa5  │ text     │ Border: #2d3a4f  │ text     │
   └─────────┴──────────────────┴──────────┴──────────────────┴──────────┘
   
   SECONDARY (supporting: Preview PDF, Machine JSON, etc.)
   ┌─────────┬──────────────────┬──────────┬──────────────────┬──────────┐
   │         │ Light Mode Off   │          │ Dark Mode Off    │          │
   │Secondary│ BG: #ffffff      │ #4a6fa5  │ BG: #1e2227      │ #87a8d8  │
   │         │ Border: #cbd5e1  │ text     │ Border: #4b5563  │ text     │
   ├─────────┼──────────────────┼──────────┼──────────────────┼──────────┤
   │         │ Light Mode On    │          │ Dark Mode On     │          │
   │Secondary│ BG: #4a6fa5      │ White    │ BG: #5d82b5      │ White    │
   │         │ Border: #4a6fa5  │ text     │ Border: #5d82b5  │ text     │
   └─────────┴──────────────────┴──────────┴──────────────────┴──────────┘
   
   HERO CTA (standalone: Meet the Researchers)
   ┌─────────┬──────────────────┬──────────┬──────────────────┬──────────┐
   │         │ Light Mode Off   │          │ Dark Mode Off    │          │
   │  Hero   │ BG: #f1f5f9      │ #4a6fa5  │ BG: #2d333b      │ #87a8d8  │
   │   CTA   │ Border: #cbd5e1  │ text     │ Border: #4b5563  │ text     │
   ├─────────┼──────────────────┼──────────┼──────────────────┼──────────┤
   │         │ Light Mode On    │          │ Dark Mode On     │          │
   │  Hero   │ BG: #4a6fa5      │ White    │ BG: #5d82b5      │ White    │
   │   CTA   │ Border: #4a6fa5  │ text     │ Border: #5d82b5  │ text     │
   └─────────┴──────────────────┴──────────┴──────────────────┴──────────┘
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Base (layout only, no colors) ── */
.sf-btn,
.sf-btn-primary,
.sf-btn-secondary,
.sf-pill-link,
.sf-people-link,
.sf-people-cta,
.link-button {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-2);
  font-family: var(--sf-font-sans);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--sf-transition-fast);
  cursor: pointer;
  border: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   LIGHT MODE — PRIMARY (card-contained main actions)
   Subtle bg, soft blue text, light border. Fills blue on hover.
   ═══════════════════════════════════════════════════════════════════════════ */
[data-md-color-scheme="default"] .sf-btn-primary,
[data-md-color-scheme="default"] .sf-people-cta {
  position: relative;
  padding: var(--sf-space-3) var(--sf-space-5);
  border-radius: var(--sf-radius-sm);
  background: var(--sf-surface-subtle);
  color: var(--sf-primary-light);
  border: 1px solid var(--sf-border-strong);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  font-size: 0.85rem;
}

[data-md-color-scheme="default"] .sf-btn-primary::before,
[data-md-color-scheme="default"] .sf-people-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent-light) 0%, var(--sf-accent) 100%);
  opacity: 0.85;
}

[data-md-color-scheme="default"] .sf-btn-primary:hover,
[data-md-color-scheme="default"] .sf-people-cta:hover {
  background: var(--sf-primary-light);
  color: #ffffff;
  border-color: var(--sf-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(45, 74, 111, 0.18);
  text-decoration: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   LIGHT MODE — HERO CTA (standalone homepage pill)
   Subtle grey-blue tint. Medium blue text. Full pill shape.
   ═══════════════════════════════════════════════════════════════════════════ */
[data-md-color-scheme="default"] .sf-people-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-2);
  padding: 0.75rem 1.8rem;
  border-radius: var(--sf-radius-sm);
  background: var(--sf-surface-subtle);
  color: var(--sf-primary-light);
  border: 1px solid var(--sf-border-strong);
  font-family: var(--sf-font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

[data-md-color-scheme="default"] .sf-people-link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent-light) 0%, var(--sf-accent) 100%);
  opacity: 0.85;
}

[data-md-color-scheme="default"] .sf-people-link:hover {
  background: var(--sf-primary-light);
  color: #ffffff;
  border-color: var(--sf-primary-light);
  box-shadow: 0 6px 18px rgba(45, 74, 111, 0.18);
  transform: translateY(-2px);
  text-decoration: none;
}

[data-md-color-scheme="default"] .sf-advocate-link {
  color: #5f9258;
}

[data-md-color-scheme="default"] .sf-advocate-link::before {
  background: linear-gradient(180deg, #ffe479 0%, #a7d39b 50%, #5f9258 100%);
}

[data-md-color-scheme="default"] .sf-advocate-link:hover {
  background: #5f9258;
  border-color: #5f9258;
  box-shadow: 0 6px 18px rgba(95, 146, 88, 0.2);
}

/* ═══════════════════════════════════════════════════════════════════════════
   LIGHT MODE — SECONDARY (peer buttons in multi-button rows)
   Identical to primary visually — only difference is NO orange ::before bar.
   ═══════════════════════════════════════════════════════════════════════════ */
[data-md-color-scheme="default"] .sf-btn-secondary,
[data-md-color-scheme="default"] .link-button {
  position: relative;
  padding: var(--sf-space-3) var(--sf-space-5);
  border-radius: var(--sf-radius-sm);
  background: var(--sf-surface-subtle);
  color: var(--sf-primary-light);
  border: 1px solid var(--sf-border-strong);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  font-size: 0.85rem;
}

[data-md-color-scheme="default"] .sf-btn-secondary:hover,
[data-md-color-scheme="default"] .link-button:hover {
  background: var(--sf-primary-light);
  color: #ffffff;
  border-color: var(--sf-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(45, 74, 111, 0.18);
  text-decoration: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   LIGHT MODE — TERTIARY (inline text links)
   ═══════════════════════════════════════════════════════════════════════════ */
[data-md-color-scheme="default"] .read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-2);
  font-family: var(--sf-font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sf-primary-light);
  text-decoration: none;
  border-bottom: 2px solid var(--sf-accent);
  padding-bottom: 1px;
  transition: all var(--sf-transition-fast);
  margin-top: auto;
}

[data-md-color-scheme="default"] .read-more:hover {
  color: var(--sf-primary);
  gap: var(--sf-space-3);
  text-decoration: none;
  border-bottom-color: var(--sf-accent);
}

[data-md-color-scheme="default"] .read-more::after {
  content: "→";
  transition: transform var(--sf-transition-fast);
}

[data-md-color-scheme="default"] .read-more:hover::after {
  transform: translateX(3px);
}

[data-md-color-scheme="default"] .author-link,
[data-md-color-scheme="default"] .journal-link {
  color: var(--sf-primary-light);
  text-decoration: underline;
  text-decoration-color: var(--sf-border-strong);
  text-underline-offset: 2px;
}

[data-md-color-scheme="default"] .author-link:hover,
[data-md-color-scheme="default"] .journal-link:hover {
  color: var(--sf-primary);
  text-decoration-color: var(--sf-primary);
}

/* ═══════════════════════════════════════════════════════════════════════════
   DARK MODE — PRIMARY
   ═══════════════════════════════════════════════════════════════════════════ */
[data-md-color-scheme="slate"] .sf-btn-primary,
[data-md-color-scheme="slate"] .sf-people-cta {
  position: relative;
  padding: var(--sf-space-3) var(--sf-space-5);
  border-radius: var(--sf-radius-sm);
  background: #3d5a80;
  color: #ffffff;
  border: 1px solid #3d5a80;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  font-size: 0.85rem;
}

[data-md-color-scheme="slate"] .sf-btn-primary::before,
[data-md-color-scheme="slate"] .sf-people-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-accent-dark) 100%);
  opacity: 0.8;
}

[data-md-color-scheme="slate"] .sf-btn-primary:hover,
[data-md-color-scheme="slate"] .sf-people-cta:hover {
  background: #2d3a4f;
  border-color: #2d3a4f;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
  color: #ffffff;
  text-decoration: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   DARK MODE — HERO CTA
   ═══════════════════════════════════════════════════════════════════════════ */
[data-md-color-scheme="slate"] .sf-people-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-2);
  padding: 0.75rem 1.8rem;
  border-radius: var(--sf-radius-sm);
  background: #3d5a80;
  color: #ffffff;
  border: 1px solid #3d5a80;
  font-family: var(--sf-font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

[data-md-color-scheme="slate"] .sf-people-link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-accent-dark) 100%);
  opacity: 0.8;
}

[data-md-color-scheme="slate"] .sf-people-link:hover {
  background: #2d3a4f;
  color: #ffffff;
  border-color: #2d3a4f;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  transform: translateY(-2px);
  text-decoration: none;
}

[data-md-color-scheme="slate"] .sf-advocate-link {
  background: #3f6f3a;
  color: #ffffff;
  border-color: #3f6f3a;
}

[data-md-color-scheme="slate"] .sf-advocate-link::before {
  background: linear-gradient(180deg, #ffe479 0%, #a7d39b 50%, #5f9258 100%);
}

[data-md-color-scheme="slate"] .sf-advocate-link:hover {
  background: #2f532b;
  border-color: #2f532b;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

/* ═══════════════════════════════════════════════════════════════════════════
   DARK MODE — SECONDARY
   ═══════════════════════════════════════════════════════════════════════════ */
[data-md-color-scheme="slate"] .sf-btn-secondary,
[data-md-color-scheme="slate"] .link-button {
  padding: var(--sf-space-2) var(--sf-space-4);
  border-radius: var(--sf-radius-sm);
  background: #3d5a80;
  color: #ffffff;
  border: 1px solid #3d5a80;
  font-size: 0.85rem;
}

[data-md-color-scheme="slate"] .sf-btn-secondary:hover,
[data-md-color-scheme="slate"] .link-button:hover {
  background: #2d3a4f;
  color: #ffffff;
  border-color: #2d3a4f;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

/* ═══════════════════════════════════════════════════════════════════════════
   DARK MODE — TERTIARY
   ═══════════════════════════════════════════════════════════════════════════ */
[data-md-color-scheme="slate"] .read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-2);
  font-family: var(--sf-font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sf-primary-light);
  text-decoration: none;
  border-bottom: 2px solid var(--sf-accent-light);
  padding-bottom: 1px;
  transition: all var(--sf-transition-fast);
  margin-top: auto;
}

[data-md-color-scheme="slate"] .read-more:hover {
  color: var(--sf-primary);
  gap: var(--sf-space-3);
  text-decoration: none;
  border-bottom-color: var(--sf-accent);
}

[data-md-color-scheme="slate"] .read-more::after {
  content: "→";
  transition: transform var(--sf-transition-fast);
}

[data-md-color-scheme="slate"] .read-more:hover::after {
  transform: translateX(3px);
}

[data-md-color-scheme="slate"] .author-link,
[data-md-color-scheme="slate"] .journal-link {
  color: var(--sf-primary-light);
  text-decoration: underline;
  text-decoration-color: var(--sf-border-strong);
  text-underline-offset: 2px;
}

[data-md-color-scheme="slate"] .author-link:hover,
[data-md-color-scheme="slate"] .journal-link:hover {
  color: var(--sf-primary);
  text-decoration-color: var(--sf-primary);
}

/* Visited pill links should stay inside the house palette, never browser orange. */
[data-md-color-scheme="default"] a.sf-btn:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="default"] a.sf-btn-primary:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="default"] a.sf-btn-secondary:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="default"] a.sf-pill-link:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="default"] a.sf-people-link:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="default"] a.sf-people-cta:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="default"] a.link-button:visited:not(:hover):not(:focus-visible) {
  color: #64748b;
}

[data-md-color-scheme="slate"] a.sf-btn:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="slate"] a.sf-btn-primary:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="slate"] a.sf-btn-secondary:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="slate"] a.sf-pill-link:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="slate"] a.sf-people-link:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="slate"] a.sf-people-cta:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="slate"] a.link-button:visited:not(:hover):not(:focus-visible) {
  color: #d1d5db;
}

@media screen and (max-width: 768px) {
  .sf-hero {
    padding: var(--sf-space-8) var(--sf-space-4);
  }
  .sf-hero-name {
    font-size: 1.75rem;
  }
  .sf-hero-avatar {
    width: 120px;
    height: 120px;
  }
}

/* ── 6. Section Divider ──────────────────────────────────────────────────── */

.sf-section {
  margin: var(--sf-space-8) 0 var(--sf-space-4);
}

/* Single house style: consistent spacing below the menu before first content item */
.md-content__inner > article > .sf-section:first-child {
  margin-top: 0;
}

.md-content__inner > article > h2:first-child {
  margin-top: 0;
}

.md-content__inner > article > .gallery-grid:first-child {
  padding-top: 0;
}

/* Page headers inside content grids — tight to menu, no extra top spacing */
.sf-people-header {
  grid-column: 1 / -1;
}

.essays-header {
  width: 100%;
}

.sf-people-header .sf-section-header,
.essays-header .sf-section-header {
  margin-bottom: var(--sf-space-3);
}

.sf-section-header {
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
  margin-bottom: var(--sf-space-6);
}

.sf-section-header::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--sf-border) 0%, transparent 100%);
}

.sf-section-title {
  font-family: var(--sf-font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sf-text-tertiary);
  white-space: nowrap;
}

.md-typeset h2.sf-section-title {
  margin: 0;
  padding: 0;
  border: 0;
  color: var(--sf-text-tertiary);
  font-family: var(--sf-font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.3;
  text-transform: uppercase;
}

/* ── 7. Cards ────────────────────────────────────────────────────────────── */

/* Publication Cards */
.publications-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.publication-card {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  padding: var(--sf-space-5) var(--sf-space-8);
  box-shadow: var(--sf-shadow-sm);
  transition: all var(--sf-transition-base);
  position: relative;
  overflow: hidden;
}

.publication-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  opacity: 0;
  transition: opacity var(--sf-transition-base);
}

.publication-card:hover {
  box-shadow: var(--sf-shadow-lg);
  transform: translateY(-3px);
  border-color: var(--sf-border-strong);
}

.publication-card:hover::before {
  opacity: 1;
}

.card-title {
  font-family: var(--sf-font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--sf-text-primary);
  margin: 0 0 var(--sf-space-2);
}

.authors {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-style: italic;
  color: var(--sf-text-tertiary);
  margin: 0 0 var(--sf-space-2);
}

.citation {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  color: var(--sf-text-tertiary);
  margin: 0 0 var(--sf-space-4);
}

.card-abstract {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--sf-text-secondary);
  margin: 0;
}

.card-thumbnail {
  width: 140px;
  height: 180px;
  object-fit: cover;
  border-radius: var(--sf-radius-sm);
  float: left;
  margin: 0 var(--sf-space-4) var(--sf-space-2) 0;
  box-shadow: var(--sf-shadow-sm);
  transition: transform var(--sf-transition-base);
}

.publication-card:hover .card-thumbnail {
  transform: scale(1.02);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sf-space-3);
  margin-top: var(--sf-space-4);
  clear: both;
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sf-space-3);
  margin-top: var(--sf-space-4);
  clear: both;
}

.sf-cite-toggle {
  background: transparent;
  border: 1px solid var(--sf-border);
  color: var(--sf-text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--sf-radius-sm);
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: color var(--sf-transition-fast), border-color var(--sf-transition-fast), transform var(--sf-transition-fast);
}

/* LIGHT MODE — Cite toggle hover */
[data-md-color-scheme="default"] .sf-cite-toggle:hover {
  background: transparent;
  border-color: var(--sf-primary-light);
  color: var(--sf-primary-light);
  transform: translateY(-1px);
}

/* DARK MODE — Cite toggle */
[data-md-color-scheme="slate"] .sf-cite-toggle {
  background: #3d5a80;
  color: #ffffff;
  border-color: #3d5a80;
}

[data-md-color-scheme="slate"] .sf-cite-toggle:hover {
  background: #2d3a4f;
  border-color: #2d3a4f;
  color: #ffffff;
  transform: translateY(-1px);
}

.sf-cite-toggle[aria-expanded="true"] {
  background: var(--sf-surface-subtle);
}

.sf-cite-dropdown {
  display: none;
  position: absolute;
  top: 50%;
  left: calc(100% + var(--sf-space-2));
  transform: translateY(-50%);
  z-index: 10;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-sm);
  padding: var(--sf-space-2);
  box-shadow: var(--sf-shadow-md);
  min-width: max-content;
  max-width: min(70vw, 24rem);
}

.sf-cite-dropdown:not([hidden]) {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: var(--sf-space-2);
}

.sf-cite-option {
  background: transparent;
  border: 1px solid var(--sf-border);
  color: var(--sf-text-secondary);
  padding: 0.3rem 0.6rem;
  border-radius: var(--sf-radius-sm);
  font-family: var(--sf-font-sans);
  font-size: 0.75rem;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--sf-transition-fast), border-color var(--sf-transition-fast), transform var(--sf-transition-fast);
}

/* LIGHT MODE — Cite option hover */
[data-md-color-scheme="default"] .sf-cite-option:hover {
  background: transparent;
  color: var(--sf-primary-light);
  border-color: var(--sf-primary-light);
  transform: translateY(-1px);
}

/* DARK MODE — Cite option */
[data-md-color-scheme="slate"] .sf-cite-option {
  background: #3d5a80;
  color: #ffffff;
  border-color: #3d5a80;
}

[data-md-color-scheme="slate"] .sf-cite-option:hover {
  background: #2d3a4f;
  color: #ffffff;
  border-color: #2d3a4f;
  transform: translateY(-1px);
}

/* ── Share toggle & dropdown (mirrors Cite) ─────────────────────────────── */

.card-tools {
  display: flex;
  align-items: flex-start;
  gap: clamp(12rem, 22vw, 16rem);
  margin-top: var(--sf-space-3);
  clear: both;
  flex-wrap: wrap;
}

.card-cite,
.card-share {
  position: relative;
}

.sf-share-toggle {
  background: transparent;
  border: 1px solid var(--sf-border);
  color: var(--sf-text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--sf-radius-sm);
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: color var(--sf-transition-fast), border-color var(--sf-transition-fast), transform var(--sf-transition-fast);
}

/* LIGHT MODE — Share toggle hover */
[data-md-color-scheme="default"] .sf-share-toggle:hover {
  background: transparent;
  border-color: var(--sf-primary-light);
  color: var(--sf-primary-light);
  transform: translateY(-1px);
}

/* DARK MODE — Share toggle */
[data-md-color-scheme="slate"] .sf-share-toggle {
  background: #3d5a80;
  color: #ffffff;
  border-color: #3d5a80;
}

[data-md-color-scheme="slate"] .sf-share-toggle:hover {
  background: #2d3a4f;
  border-color: #2d3a4f;
  color: #ffffff;
  transform: translateY(-1px);
}

.sf-share-dropdown {
  display: none;
  position: absolute;
  top: 50%;
  left: calc(100% + var(--sf-space-2));
  transform: translateY(-50%);
  z-index: 10;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-sm);
  padding: var(--sf-space-2);
  box-shadow: var(--sf-shadow-md);
  min-width: max-content;
  max-width: min(70vw, 36rem);
}

.sf-share-dropdown:not([hidden]) {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: var(--sf-space-2);
}

.sf-share-option {
  background: transparent;
  border: 1px solid var(--sf-border);
  color: var(--sf-text-secondary);
  padding: 0.3rem 0.6rem;
  border-radius: var(--sf-radius-sm);
  font-family: var(--sf-font-sans);
  font-size: 0.75rem;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--sf-transition-fast), border-color var(--sf-transition-fast), transform var(--sf-transition-fast);
}

/* LIGHT MODE — Share option hover */
[data-md-color-scheme="default"] .sf-share-option:hover {
  background: transparent;
  color: var(--sf-primary-light);
  border-color: var(--sf-primary-light);
  transform: translateY(-1px);
}

/* DARK MODE — Share option */
[data-md-color-scheme="slate"] .sf-share-option {
  background: #3d5a80;
  color: #ffffff;
  border-color: #3d5a80;
}

[data-md-color-scheme="slate"] .sf-share-option:hover {
  background: #2d3a4f;
  color: #ffffff;
  border-color: #2d3a4f;
  transform: translateY(-1px);
}

@media (max-width: 820px) {
  .card-tools {
    gap: var(--sf-space-3);
  }

  .sf-cite-dropdown,
  .sf-share-dropdown {
    top: calc(100% + 0.25rem);
    left: 0;
    transform: none;
    min-width: 0;
    max-width: calc(100vw - (var(--sf-space-5) * 2));
  }

  .sf-cite-dropdown:not([hidden]),
  .sf-share-dropdown:not([hidden]) {
    flex-wrap: wrap;
  }
}

.Z3988 {
  display: none;
}

.essay-share-cite-tools {
  margin-top: var(--sf-space-4);
  margin-bottom: var(--sf-space-4);
}

/* ── Research Study Cards ── */
.sf-research-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sf-space-5);
  margin-bottom: var(--sf-space-6);
}

.sf-research-grid-single {
  grid-template-columns: 1fr;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.sf-research-card {
  padding: var(--sf-space-5) 0;
  padding-left: var(--sf-space-4);
  position: relative;
}

.sf-research-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  border-radius: 0 2px 2px 0;
}

.sf-research-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--sf-space-3);
  margin-bottom: var(--sf-space-4);
}

.sf-research-title {
  font-family: var(--sf-font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--sf-text-primary);
  margin: 0;
  flex: 1;
}

.sf-research-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-1);
  padding: 0.2rem 0.6rem;
  background: var(--sf-accent);
  color: #ffffff;
  border-radius: var(--sf-radius-sm);
  font-family: var(--sf-font-sans);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  flex-shrink: 0;
}

.sf-research-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  display: inline-block;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.sf-research-field {
  margin-bottom: var(--sf-space-3);
}

.sf-research-field:last-child {
  margin-bottom: 0;
}

.sf-research-label {
  font-family: var(--sf-font-sans);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--sf-primary);
  margin: 0 0 var(--sf-space-1);
  display: block;
}

.sf-research-value {
  font-family: var(--sf-font-sans);
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--sf-text-secondary);
  margin: 0;
}

.sf-research-value-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--sf-text-primary);
}

.sf-research-value a {
  color: var(--sf-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--sf-border);
  transition: all var(--sf-transition-fast);
}

.sf-research-value a:hover {
  color: var(--sf-primary-dark);
  border-bottom-color: var(--sf-accent);
}

[data-md-color-scheme="slate"] .sf-research-badge {
  background: var(--sf-accent-light);
  color: #1a202c;
}

[data-md-color-scheme="slate"] .sf-research-value a {
  color: var(--sf-primary-light);
}

@media (max-width: 768px) {
  .sf-research-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Featured Essays ── */
.sf-featured-essays {
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-4);
  margin-bottom: var(--sf-space-6);
}

.sf-featured-essay {
  display: flex;
  align-items: flex-start;
  gap: var(--sf-space-4);
  padding: var(--sf-space-4);
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  box-shadow: var(--sf-shadow-sm);
  transition: all var(--sf-transition-base);
  position: relative;
  overflow: hidden;
}

.sf-featured-essay::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  opacity: 0;
  transition: opacity var(--sf-transition-base);
}

.sf-featured-essay:hover {
  box-shadow: var(--sf-shadow-md);
  border-color: var(--sf-border-strong);
  transform: translateY(-2px);
}

.sf-featured-essay:hover::before {
  opacity: 1;
}

.sf-featured-essay-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sf-surface-subtle);
  border-radius: var(--sf-radius-md);
  font-size: 1.2rem;
  margin-top: 2px;
}

.sf-featured-essay-body {
  flex: 1;
  min-width: 0;
}

.sf-featured-essay-title {
  font-family: var(--sf-font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--sf-text-primary);
  margin: 0 0 var(--sf-space-1);
}

.sf-featured-essay-title a {
  color: var(--sf-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all var(--sf-transition-fast);
}

.sf-featured-essay-title a:hover {
  color: var(--sf-primary-dark);
  border-bottom-color: var(--sf-accent);
}

[data-md-color-scheme="slate"] .sf-featured-essay-title a {
  color: var(--sf-primary-light);
}

[data-md-color-scheme="slate"] .sf-featured-essay-title a:hover {
  color: var(--sf-primary);
  border-bottom-color: var(--sf-accent-light);
}

.sf-featured-essay-date {
  font-family: var(--sf-font-sans);
  font-size: 0.75rem;
  color: var(--sf-text-tertiary);
  margin: 0 0 var(--sf-space-2);
}

.sf-featured-essay-link {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--sf-primary);
  text-decoration: none;
  border-bottom: 2px solid var(--sf-accent);
  transition: all var(--sf-transition-fast);
}

.sf-featured-essay-link:hover {
  color: var(--sf-primary-dark);
}

.card-divider {
  display: none;
}

@media (max-width: 640px) {
  .card-thumbnail {
    width: 100%;
    height: 200px;
    float: none;
    margin: 0 0 var(--sf-space-4) 0;
  }
}

/* Essay Cards */
.essays-grid {
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-5);
  margin-bottom: var(--sf-space-8);
}

.essay-card {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  padding: var(--sf-space-5) var(--sf-space-8);
  box-shadow: var(--sf-shadow-sm);
  transition: all var(--sf-transition-base);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.essay-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  opacity: 0;
  transition: opacity var(--sf-transition-base);
}

.essay-card:hover {
  box-shadow: var(--sf-shadow-lg);
  transform: translateY(-3px);
  border-color: var(--sf-border-strong);
}

.essay-card:hover::before {
  opacity: 1;
}

.essay-card h3 {
  font-family: var(--sf-font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 var(--sf-space-2);
}

.essay-card h3 a {
  color: var(--sf-primary);
  text-decoration: none;
  pointer-events: auto;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: all var(--sf-transition-fast);
}

.essay-card h3 a:hover {
  color: var(--sf-primary-dark);
  border-bottom-color: var(--sf-accent);
}

[data-md-color-scheme="slate"] .essay-card h3 a {
  color: var(--sf-primary-light);
}

[data-md-color-scheme="slate"] .essay-card h3 a:hover {
  color: var(--sf-primary);
  border-bottom-color: var(--sf-accent-light);
}

.essay-date {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--sf-text-tertiary);
  margin: 0 0 var(--sf-space-3);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.essay-summary {
  flex: 1;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--sf-text-secondary);
  margin: 0 0 var(--sf-space-4);
}

.essay-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: var(--sf-space-4);
}

.tag {
  display: inline-block;
  padding: 0.16rem 0.44rem;
  background: var(--sf-surface-subtle);
  color: var(--sf-text-tertiary);
  border-radius: var(--sf-radius-full);
  font-family: var(--sf-font-sans);
  font-size: 0.64rem;
  font-weight: 550;
  line-height: 1.35;
  border: 1px solid var(--sf-border);
}

.essay-archive-list {
  display: grid;
  gap: var(--sf-space-3);
  margin-top: var(--sf-space-4);
}

.essay-archive-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--sf-space-4);
  align-items: start;
  padding: var(--sf-space-4);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  background: var(--sf-surface);
  box-shadow: var(--sf-shadow-sm);
}

.essay-archive-item h3 {
  margin: 0 0 var(--sf-space-1);
  font-family: var(--sf-font-sans);
  font-size: 0.98rem;
  line-height: 1.3;
}

.essay-archive-item h3 a {
  color: var(--sf-text-primary);
  text-decoration: none;
}

.essay-archive-item h3 a:hover {
  color: var(--sf-primary-dark);
}

.essay-archive-item p {
  margin: 0;
  color: var(--sf-text-secondary);
  font-size: 0.82rem;
  line-height: 1.5;
}

.essay-archive-item time {
  color: var(--sf-text-tertiary);
  font-family: var(--sf-font-sans);
  font-size: 0.72rem;
  font-weight: 650;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

@media (max-width: 768px) {
  .essay-archive-item {
    grid-template-columns: 1fr;
    gap: var(--sf-space-2);
  }
}

/* ── 8. Profile / Avatar Placeholders ────────────────────────────────────── */

.sf-avatar {
  width: 120px;
  height: 120px;
  border-radius: var(--sf-radius-full);
  object-fit: cover;
  border: 3px solid var(--sf-surface);
  box-shadow: var(--sf-shadow-md);
}

.sf-avatar-placeholder {
  width: 120px;
  height: 120px;
  border-radius: var(--sf-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sf-font-sans);
  font-size: 2.5rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, var(--sf-primary-light) 0%, var(--sf-primary) 100%);
  box-shadow: var(--sf-shadow-md);
  border: 3px solid var(--sf-surface);
  user-select: none;
}

.sf-avatar-placeholder.accent {
  background: linear-gradient(135deg, var(--sf-accent-light) 0%, var(--sf-accent) 100%);
}

.sf-profile-card {
  display: flex;
  gap: var(--sf-space-6);
  align-items: flex-start;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  padding: var(--sf-space-6);
  box-shadow: var(--sf-shadow-sm);
  margin: var(--sf-space-4) 0;
}

.sf-profile-card ~ .sf-section {
  margin: var(--sf-space-5) 0 var(--sf-space-3);
}

.sf-profile-card ~ .sf-section .sf-section-header {
  margin-bottom: var(--sf-space-3);
}

.sf-profile-info h3 {
  font-family: var(--sf-font-sans);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 var(--sf-space-2);
  color: var(--sf-text-primary);
}

.sf-profile-info .role {
  font-family: var(--sf-font-sans);
  font-size: 0.9rem;
  color: var(--sf-text-secondary);
  margin: 0 0 var(--sf-space-1);
}

.sf-profile-info .affiliation {
  font-family: var(--sf-font-sans);
  font-size: 0.85rem;
  color: var(--sf-text-tertiary);
  margin: 0 0 var(--sf-space-4);
}

.sf-profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sf-space-3);
}

@media (max-width: 640px) {
  .sf-profile-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* ── 9. Essay Meta / Actions ─────────────────────────────────────────────── */

.md-content__inner > .md-tags {
  display: none;
}

.essay-author-link {
  margin: var(--sf-space-4) 0 var(--sf-space-5);
}

.essay-author-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.65rem 1rem;
  border: 1px solid color-mix(in srgb, var(--sf-primary) 28%, var(--sf-border));
  border-radius: var(--sf-radius-full);
  background: color-mix(in srgb, var(--sf-primary) 9%, var(--sf-surface));
  color: var(--sf-primary);
  font-family: var(--sf-font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: var(--sf-shadow-sm);
  transition:
    transform var(--sf-transition-fast),
    border-color var(--sf-transition-fast),
    box-shadow var(--sf-transition-fast);
}

.essay-author-button:hover {
  border-color: var(--sf-primary);
  box-shadow: var(--sf-shadow-md);
  transform: translateY(-1px);
}

.essay-bottom-meta {
  margin-top: var(--sf-space-10);
  padding-top: var(--sf-space-6);
  border-top: 1px solid var(--sf-border);
}

.essay-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sf-space-2);
  margin-bottom: var(--sf-space-5);
}

.essay-keyword-pill {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.42rem 0.85rem;
  border: 1px solid color-mix(in srgb, var(--sf-accent) 28%, var(--sf-border));
  border-radius: var(--sf-radius-full);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--sf-accent) 15%, var(--sf-surface)) 0%,
    color-mix(in srgb, var(--sf-primary) 10%, var(--sf-surface)) 100%
  );
  color: var(--sf-text-primary);
  font-family: var(--sf-font-sans);
  font-size: 0.9rem;
  font-weight: 700;
}

.essay-llm-panel {
  margin: 0 0 var(--sf-space-5);
}

.essay-llm-panel > summary {
  list-style: none;
}

.essay-llm-panel > summary::-webkit-details-marker {
  display: none;
}

.essay-action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--sf-primary);
  border-radius: var(--sf-radius-full);
  background: var(--sf-primary);
  color: #ffffff;
  font-family: var(--sf-font-sans);
  font-size: 0.85rem;
  font-weight: 750;
  cursor: pointer;
  box-shadow: var(--sf-shadow-sm);
  transition:
    transform var(--sf-transition-fast),
    box-shadow var(--sf-transition-fast),
    background-color var(--sf-transition-fast);
}

.essay-action-button:hover {
  background: var(--sf-primary-dark);
  box-shadow: var(--sf-shadow-md);
  transform: translateY(-1px);
}

.essay-llm-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sf-space-4);
  margin: var(--sf-space-3) 0 var(--sf-space-2);
}

.essay-llm-note {
  margin: 0;
  color: var(--sf-text-secondary);
  font-family: var(--sf-font-sans);
  font-size: 0.86rem;
}

.essay-llm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sf-space-2);
  justify-content: flex-end;
}

.essay-copy-button {
  min-height: 2.15rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--sf-primary);
  border-radius: var(--sf-radius-full);
  background: var(--sf-primary);
  color: #ffffff;
  font-family: var(--sf-font-sans);
  font-size: 0.78rem;
  font-weight: 750;
  cursor: pointer;
  box-shadow: var(--sf-shadow-sm);
  transition:
    background-color var(--sf-transition-fast),
    box-shadow var(--sf-transition-fast),
    transform var(--sf-transition-fast);
}

.essay-copy-button:hover {
  background: var(--sf-primary-dark);
  box-shadow: var(--sf-shadow-md);
  transform: translateY(-1px);
}

.essay-copy-button-secondary {
  background: var(--sf-surface);
  color: var(--sf-primary);
  border-color: color-mix(in srgb, var(--sf-primary) 35%, var(--sf-border));
}

.essay-copy-button-secondary:hover {
  background: color-mix(in srgb, var(--sf-primary) 8%, var(--sf-surface));
  color: var(--sf-primary);
}

.essay-llm-text {
  width: 100%;
  min-height: 18rem;
  padding: var(--sf-space-4);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  background: var(--sf-surface-subtle);
  color: var(--sf-text-primary);
  font-family: var(--sf-font-mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
  font-size: 0.78rem;
  line-height: 1.55;
  resize: vertical;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.06);
}

.essay-license {
  padding: var(--sf-space-4);
  border: 1px solid color-mix(in srgb, var(--sf-accent) 20%, var(--sf-border));
  border-radius: var(--sf-radius-md);
  background: color-mix(in srgb, var(--sf-accent) 7%, var(--sf-surface));
  color: var(--sf-text-secondary);
  font-family: var(--sf-font-sans);
  font-size: 0.84rem;
  line-height: 1.55;
}

.essay-license a {
  color: var(--sf-primary);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--sf-primary) 35%, transparent);
}

@media (max-width: 700px) {
  .essay-llm-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .essay-llm-actions {
    justify-content: flex-start;
  }
}

/* ── 10. Footer ──────────────────────────────────────────────────────────── */

.md-footer {
  background: var(--sf-surface-subtle);
  border-top: 1px solid var(--sf-border);
}

.md-footer-meta {
  background: transparent;
}

.md-footer__inner {
  display: none;
}

.md-footer-meta__inner {
  display: flex;
  justify-content: center;
  padding: var(--sf-space-5) 0;
}

.md-social {
  display: none;
}

.md-footer-copyright {
  width: 100%;
  text-align: center;
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  color: var(--sf-text-tertiary);
}

.md-footer-copyright__highlight {
  display: none;
}

/* ── 11. Links ───────────────────────────────────────────────────────────── */

.md-typeset a {
  color: var(--sf-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--sf-transition-fast), color var(--sf-transition-fast);
}

.md-typeset a:hover {
  border-bottom-color: var(--sf-link-hover);
  color: var(--sf-link-hover);
}

.md-nav__link {
  color: var(--sf-text-secondary) !important;
  transition: color var(--sf-transition-fast), transform var(--sf-transition-fast);
}

.md-nav__item {
  font-family: var(--sf-font-sans);
  font-size: 0.95rem;
  font-weight: 500;
}

.md-nav__link:hover {
  color: var(--sf-primary) !important;
  transform: translateX(2px);
}

.md-nav__title {
  color: var(--sf-text-primary) !important;
  font-weight: 700;
}

/* ── 12. Navigation drawer title hide ────────────────────────────────────── */

[dir=ltr] .md-nav--integrated>.md-nav__title,
[dir=ltr] .md-nav--primary .md-nav__title,
.md-nav--primary .md-nav__title[for="__drawer"] {
  display: none !important;
  visibility: hidden !important;
  height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
}

.md-nav--primary > .md-nav__title {
  height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
}

.md-nav--primary > .md-nav__list {
  margin-top: var(--sf-space-1) !important;
}

[data-md-color-scheme="default"] .md-sidebar--primary,
[data-md-color-scheme="default"] .md-sidebar--primary .md-sidebar__scrollwrap,
[data-md-color-scheme="default"] .md-sidebar--primary .md-sidebar__inner,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav {
  background: var(--md-default-bg-color) !important;
}

[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__list,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__item {
  background: transparent !important;
}

[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link {
  background: transparent !important;
  color: var(--sf-primary) !important;
  transform: none !important;
}

[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link .md-ellipsis {
  color: var(--sf-primary) !important;
}

[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link:hover,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link:hover .md-ellipsis,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link--active,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link--active .md-ellipsis,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__item--active > .md-nav__link,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__item--active > .md-nav__link .md-ellipsis {
  color: var(--sf-primary-dark) !important;
}

[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link:hover,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link--active,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__item--active > .md-nav__link {
  background: rgba(45, 74, 111, 0.08) !important;
  transform: none !important;
}

[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__link--active,
[data-md-color-scheme="default"] .md-sidebar--primary .md-nav__item--active > .md-nav__link {
  background: rgba(45, 74, 111, 0.1) !important;
}

[data-md-color-scheme="slate"] .md-sidebar--primary,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-sidebar__scrollwrap,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-sidebar__inner,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav {
  background: var(--md-default-bg-color) !important;
}

[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__list,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__item {
  background: transparent !important;
}

[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link {
  background: transparent !important;
  color: rgba(255,255,255,0.7) !important;
  transform: none !important;
}

[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link .md-ellipsis {
  color: rgba(255,255,255,0.7) !important;
}

[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link:hover,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link:hover .md-ellipsis,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link--active,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link--active .md-ellipsis,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__item--active > .md-nav__link,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__item--active > .md-nav__link .md-ellipsis {
  color: #ffffff !important;
}

[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link:hover,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link--active,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__item--active > .md-nav__link {
  background: rgba(74, 111, 165, 0.18) !important;
  transform: none !important;
}

[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__link--active,
[data-md-color-scheme="slate"] .md-sidebar--primary .md-nav__item--active > .md-nav__link {
  background: rgba(74, 111, 165, 0.22) !important;
}

/* ── 13. Print Styles ────────────────────────────────────────────────────── */

@media print {
  .md-header,
  .md-sidebar,
  .md-footer,
  .sf-hero-cta,
  .card-links,
  .read-more,
  .essay-tags {
    display: none !important;
  }

  .sf-hero {
    padding: var(--sf-space-4);
    border-bottom: 2px solid #000;
    background: none;
  }

  .sf-hero-name {
    font-size: 1.5rem;
  }

  .publication-card,
  .essay-card,
  .author-card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  .card-thumbnail {
    max-width: 100px;
    height: auto;
  }

  .md-typeset {
    font-size: 11pt;
    line-height: 1.5;
    color: #000;
  }

  .md-typeset h1,
  .md-typeset h2,
  .md-typeset h3 {
    color: #000;
    border-bottom-color: #ccc;
  }

  a {
    color: #000 !important;
    text-decoration: underline !important;
    border-bottom: none !important;
  }

  .md-content__inner {
    max-width: 100%;
    padding: 0;
  }
}

/* ── 14. Accessibility ───────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
.sf-btn:focus-visible,
.link-button:focus-visible {
  outline: 2px solid var(--sf-accent);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: rgba(74, 111, 165, 0.2);
  color: inherit;
}


/* ═══════════════════════════════════════════════════════════════════════════
   Homepage Components v2 — Co-Directors, Manifesto, Pillars, Rotator, Footer
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Co-Directors Hero ───────────────────────────────────────────────────── */

.sf-hero-lab {
  text-align: center;
  padding: var(--sf-space-6) var(--sf-space-5) var(--sf-space-5);
  margin: calc(var(--sf-space-5) / 2) 0 var(--sf-space-5);
  background: linear-gradient(160deg, var(--sf-surface-subtle) 0%, var(--sf-surface) 60%, var(--sf-surface-subtle) 100%);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  box-shadow: var(--sf-shadow-sm);
  position: relative;
  overflow: hidden;
}

[data-md-color-scheme="slate"] .sf-hero-lab {
  background: linear-gradient(160deg, rgba(17, 24, 39, 0.76) 0%, rgba(30, 41, 59, 0.58) 62%, rgba(15, 23, 42, 0.72) 100%);
  border-color: rgba(148, 163, 184, 0.22);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

.sf-hero-lab::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(74,111,165,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.sf-hero-lab::after {
  content: "";
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(196,92,62,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.sf-co-directors {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--sf-space-8);
  margin-top: 0;
  margin-bottom: 0;
  position: relative;
  z-index: 1;
}

.sf-director {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.sf-director .sf-avatar,
.sf-director .sf-avatar-placeholder {
  width: 80px;
  height: 80px;
  margin-bottom: var(--sf-space-3);
}

.sf-director-role {
  font-family: var(--sf-font-sans);
  font-size: 0.75rem;
  color: var(--sf-text-tertiary);
  margin: 0;
  line-height: 1.3;
}

.sf-director-info {
  font-family: var(--sf-font-sans);
  font-size: 0.75rem;
  color: var(--sf-text-tertiary);
  margin: 0;
  line-height: 1.35;
  text-align: center;
}

.sf-director-info strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--sf-text-primary);
}

.sf-hero-ampersand {
  font-family: var(--sf-font-serif);
  font-size: 1.75rem;
  font-style: italic;
  color: var(--sf-primary-light);
  opacity: 0.6;
  margin-top: var(--sf-space-6);
}

.md-typeset .sf-lab-title,
.sf-lab-title {
  font-family: var(--sf-font-serif);
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.05;
  color: #345b82;
  margin: 0 0 var(--sf-space-3);
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 12px rgba(45, 74, 111, 0.12);
}

[data-md-color-scheme="slate"] .md-typeset .sf-lab-title,
[data-md-color-scheme="slate"] .sf-lab-title {
  color: #d9e6f7;
  text-shadow: 0 2px 14px rgba(135, 168, 216, 0.16);
}

.sf-lab-title-break {
  display: block;
}

.sf-lab-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--sf-primary), var(--sf-accent));
  border-radius: 2px;
  margin: var(--sf-space-3) auto 0;
}

.sf-lab-subtitle {
  font-family: var(--sf-font-sans);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--sf-text-secondary);
  margin: 0 0 var(--sf-space-5);
  position: relative;
  z-index: 1;
}

.sf-lab-subtitle {
  font-family: var(--sf-font-sans);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--sf-text-secondary);
  margin: 0 0 var(--sf-space-6);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

@media (max-width: 640px) {
  .md-content__inner {
    padding-top: 0.45rem;
  }

  .sf-hero-lab {
    padding-top: var(--sf-space-5);
    margin-top: 0.35rem;
  }

  .sf-co-directors {
    flex-direction: column;
    gap: var(--sf-space-5);
  }
  .sf-hero-ampersand {
    display: none;
  }
  .md-typeset .sf-lab-title,
  .sf-lab-title {
    font-size: 1.75rem;
    line-height: 1.15;
  }
  .sf-lab-title-break {
    display: none;
  }
  .sf-lab-title-culture::before {
    content: " ";
  }
}

/* ── Manifesto ───────────────────────────────────────────────────────────── */

.sf-manifesto {
  font-size: 0.98rem;
  line-height: 1.68;
  color: var(--sf-text-secondary);
  max-width: none;
  margin: 0 0 var(--sf-space-6);
  padding: 0.1rem clamp(0.5rem, 2vw, 1.5rem) 0 clamp(1.6rem, 2.5vw, 2.25rem);
  position: relative;
}

.sf-manifesto::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  border-radius: 0 2px 2px 0;
}

.sf-manifesto strong {
  color: var(--sf-text-primary);
  font-weight: 700;
}

.sf-manifesto em {
  font-style: italic;
  color: var(--sf-text-secondary);
}

.sf-manifesto p:first-child::first-letter {
  float: left;
  font-family: var(--sf-font-serif);
  font-size: 4.1rem;
  font-weight: 800;
  line-height: 0.82;
  margin: 0.08rem 0.58rem 0 0;
  color: #345b82;
  text-shadow: 0 2px 10px rgba(52, 91, 130, 0.16);
}

[data-md-color-scheme="slate"] .sf-manifesto p:first-child::first-letter {
  color: #d9e6f7;
  text-shadow: 0 2px 14px rgba(135, 168, 216, 0.16);
}

/* ── Research Pillars ────────────────────────────────────────────────────── */

.sf-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sf-space-3);
  margin: var(--sf-space-4) 0 var(--sf-space-8);
}

@media (max-width: 768px) {
  .sf-pillars {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .sf-pillars {
    grid-template-columns: 1fr;
  }
}

.sf-pillar {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  padding: var(--sf-space-5);
  box-shadow: var(--sf-shadow-sm);
  transition: transform var(--sf-transition-base), box-shadow var(--sf-transition-base), border-color var(--sf-transition-base);
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
  border-bottom-color: var(--sf-border);
}

.sf-pillar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  opacity: 0;
  transition: opacity var(--sf-transition-base);
}

.sf-pillar:hover {
  box-shadow: var(--sf-shadow-lg);
  transform: translateY(-3px);
  border-color: var(--sf-border-strong);
  border-bottom-color: var(--sf-border-strong);
  color: inherit;
  text-decoration: none;
}

.md-typeset .sf-pillar,
.md-typeset .sf-pillar:hover {
  border-bottom-color: var(--sf-border);
  color: inherit;
}

.md-typeset .sf-pillar:hover {
  border-bottom-color: var(--sf-border-strong);
}

.sf-pillar:hover::before {
  opacity: 1;
}

.sf-pillar-visual {
  width: clamp(92px, 8vw, 124px);
  height: clamp(92px, 8vw, 124px);
  margin-bottom: var(--sf-space-3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 44% 38%, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.08) 48%, rgba(255, 255, 255, 0) 66%),
    radial-gradient(circle at 50% 52%, rgba(148, 163, 184, 0.34), rgba(226, 232, 240, 0.76) 66%);
  box-shadow:
    inset 0 0 0 1px rgba(100, 116, 139, 0.12),
    0 14px 28px rgba(15, 23, 42, 0.14);
}

.sf-pillar-image {
  width: 90%;
  height: 90%;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 10px 12px rgba(15, 23, 42, 0.16));
}

[data-md-color-scheme="slate"] .sf-pillar-visual {
  background:
    radial-gradient(circle at 46% 42%, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0) 58%),
    radial-gradient(circle at 50% 52%, rgba(125, 211, 252, 0.18), rgba(45, 212, 191, 0.04) 70%);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.28);
}

[data-md-color-scheme="slate"] .sf-pillar-image {
  filter: drop-shadow(0 12px 14px rgba(0, 0, 0, 0.38));
}

.sf-pillar h4 {
  font-family: var(--sf-font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--sf-text-primary);
  margin: 0 0 var(--sf-space-2);
}

.sf-pillar p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--sf-text-tertiary);
  margin: 0;
}

/* ── Transnational Network ───────────────────────────────────────────────── */

.sf-network {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sf-space-3);
  margin: var(--sf-space-4) 0 var(--sf-space-6);
}

.sf-network-node {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--sf-space-2);
  padding: var(--sf-space-2) var(--sf-space-3);
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  box-shadow: var(--sf-shadow-sm);
}

.sf-network-flag {
  font-size: 1.25rem;
  line-height: 1;
}

.sf-network-label {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--sf-text-primary);
}

.sf-network-detail {
  display: none;
}

/* ── Image Rotator ───────────────────────────────────────────────────────── */

.sf-rotator {
  position: relative;
  width: 100%;
  height: 340px;
  border-radius: var(--sf-radius-lg);
  overflow: hidden;
  margin: var(--sf-space-5) auto var(--sf-space-5);
  box-shadow: var(--sf-shadow-lg);
  max-width: 900px;
}

.sf-rotator-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sf-rotator-slide.active {
  opacity: 1;
}

.sf-rotator-slide .sf-rotator-visual {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sf-rotator-caption {
  display: none;
}

@media (max-width: 640px) {
  .sf-rotator {
    height: 220px;
  }
}

/* ── Featured Cards ──────────────────────────────────────────────────────── */

.sf-featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sf-space-3);
  margin: var(--sf-space-2) 0;
}

.sf-featured-card {
  padding: var(--sf-space-4);
}

.sf-featured-publication { grid-column: span 1; }
.sf-featured-essay { grid-column: span 1; }
.sf-featured-photo { grid-column: span 2; }

.sf-featured-photo .sf-photo-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.sf-featured-photo .sf-photo-pair img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .sf-featured-grid {
    grid-template-columns: 1fr;
  }
  .sf-featured-publication,
  .sf-featured-essay,
  .sf-featured-photo {
    grid-column: span 1;
  }

  .sf-featured-photo .sf-photo-pair img {
    height: 180px;
  }
}

.sf-featured-card {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  padding: var(--sf-space-5);
  box-shadow: var(--sf-shadow-sm);
  transition: all var(--sf-transition-base);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.sf-featured-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  opacity: 0;
  transition: opacity var(--sf-transition-base);
}

.sf-featured-card:hover {
  box-shadow: var(--sf-shadow-md);
  border-color: var(--sf-border-strong);
}

.sf-featured-card:hover::before {
  opacity: 1;
}

.sf-featured-label {
  font-family: var(--sf-font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sf-primary);
  margin-bottom: var(--sf-space-3);
}

.sf-featured-title {
  font-family: var(--sf-font-sans);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--sf-text-primary);
  margin: 0 0 var(--sf-space-2);
}

.sf-featured-title a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--sf-transition-fast);
}

.sf-featured-title a:hover {
  color: inherit;
  border-bottom: 1px solid var(--sf-accent);
}

.sf-featured-meta {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  color: var(--sf-text-tertiary);
  margin: 0 0 var(--sf-space-3);
}

.sf-featured-photo img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--sf-radius-sm);
  margin-bottom: var(--sf-space-3);
}

.sf-featured-caption {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  color: var(--sf-text-tertiary);
  font-style: italic;
}

.sf-featured-actions {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--sf-space-3);
  margin-top: auto;
  padding-top: var(--sf-space-2);
}

@media (max-width: 520px) {
  .sf-featured-actions {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* ── Working On Now ──────────────────────────────────────────────────────── */

.sf-working-now {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sf-space-3);
  margin: 32px 0 var(--sf-space-6);
}

@media (max-width: 768px) {
  .sf-working-now {
    grid-template-columns: 1fr;
  }
}

/* LIGHT MODE — Working cards: clearly distinct from white page */
[data-md-color-scheme="default"] .sf-working-card {
  background: linear-gradient(180deg, #f1f5f9 0%, #e8ecf1 100%);
  border: 1px solid #cbd5e1;
  border-radius: 20px;
  padding: var(--sf-space-3) var(--sf-space-5) var(--sf-space-5);
  box-shadow: 0 2px 12px rgba(45, 74, 111, 0.1);
  position: relative;
  overflow: hidden;
}

/* DARK MODE — Working cards: elevated above dark page */
[data-md-color-scheme="slate"] .sf-working-card {
  background: linear-gradient(180deg, #2d333b 0%, #252a31 100%);
  border: 1px solid #4b5563;
  border-radius: 20px;
  padding: var(--sf-space-3) var(--sf-space-5) var(--sf-space-5);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
  position: relative;
  overflow: hidden;
}

.sf-working-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-primary-light) 0%, var(--sf-primary) 100%);
}

.sf-working-card.accent::before {
  background: linear-gradient(180deg, var(--sf-accent-light) 0%, var(--sf-accent) 100%);
}

.sf-working-header {
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
  margin-bottom: var(--sf-space-3);
}

.sf-working-header .sf-avatar,
.sf-working-header .sf-avatar-placeholder {
  width: 48px;
  height: 48px;
}

.sf-working-name {
  font-family: var(--sf-font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--sf-text-primary);
  margin: 0;
}

.sf-working-role {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  color: var(--sf-text-tertiary);
  margin: 0;
}

.sf-working-text {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--sf-text-secondary);
  margin: 0;
  font-style: italic;
}

/* ── Institutional Footer ────────────────────────────────────────────────── */

.sf-institutional-footer {
  margin: var(--sf-space-8) 0 var(--sf-space-4);
  padding: var(--sf-space-5);
  background: linear-gradient(180deg, var(--sf-surface-subtle) 0%, var(--sf-surface) 100%);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  box-shadow: var(--sf-shadow-sm);
}

.sf-institutional-footer h3 {
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--sf-text-tertiary);
  text-align: center;
  margin: 0 0 var(--sf-space-4);
}

.sf-affiliations {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sf-space-4);
  margin-bottom: var(--sf-space-5);
}

.sf-institutional-footer .sf-affiliations:last-child {
  margin-bottom: 0;
}

.sf-affiliation {
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
  padding: var(--sf-space-3) var(--sf-space-4);
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  font-family: var(--sf-font-sans);
  font-size: 0.85rem;
  color: var(--sf-text-secondary);
  box-shadow: var(--sf-shadow-sm);
}

.sf-institutional-footer .sf-affiliation {
  transition: background-color var(--sf-transition-fast), border-color var(--sf-transition-fast), box-shadow var(--sf-transition-fast), color var(--sf-transition-fast), opacity var(--sf-transition-fast), transform var(--sf-transition-fast);
}

.sf-institutional-footer .sf-affiliation a,
.sf-institutional-footer .sf-affiliation a:hover {
  border-bottom: 0;
  color: inherit;
  text-decoration: none;
}

.sf-institutional-footer .sf-affiliation:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(45, 74, 111, 0.18);
  opacity: 1;
}

[data-md-color-scheme="default"] .sf-institutional-footer .sf-affiliation:hover {
  background: var(--sf-primary-light);
  border-color: var(--sf-primary-light);
  color: #ffffff;
}

[data-md-color-scheme="slate"] .sf-institutional-footer .sf-affiliation:hover {
  background: #5d82b5;
  border-color: #5d82b5;
  color: #ffffff;
}

.sf-institutional-footer .sf-affiliation.current {
  border-color: var(--sf-primary-light);
  background: linear-gradient(135deg, var(--sf-surface) 0%, rgba(74,111,165,0.05) 100%);
  font-size: 0.95rem;
  font-weight: 650;
  color: var(--sf-text-primary);
}

.sf-institutional-footer .sf-affiliation.current a {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-3);
}

.sf-affiliation-past {
  opacity: 0.55;
  font-size: 0.78rem;
  box-shadow: none;
  background: transparent;
  border-color: var(--sf-border-subtle);
}

@media (max-width: 640px) {
  .sf-affiliations {
    flex-direction: column;
    align-items: stretch;
  }
  .sf-affiliation {
    justify-content: center;
  }
}

/* Affiliation logos */
.sf-institutional-footer .sf-affiliation.current .sf-affiliation-logo {
  width: clamp(70px, 7vw, 92px);
  height: 56px;
  border-radius: 5px;
  object-fit: contain;
  padding: 4px 6px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.08);
  flex-shrink: 0;
}

.sf-institutional-footer .sf-affiliation.current .sf-affiliation-logo--wunu {
  width: clamp(104px, 10vw, 136px);
}

.sf-institutional-footer .sf-affiliation.current .sf-affiliation-logo--york {
  width: clamp(72px, 7vw, 96px);
}

[data-md-color-scheme="slate"] .sf-institutional-footer .sf-affiliation.current {
  border-color: rgba(111, 182, 255, 0.5);
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.86) 0%, rgba(33, 52, 76, 0.68) 100%);
}

[data-md-color-scheme="slate"] .sf-institutional-footer .sf-affiliation.current .sf-affiliation-logo {
  background: rgba(255, 255, 255, 0.98);
  box-shadow:
    inset 0 0 0 1px rgba(15, 23, 42, 0.1),
    0 8px 18px rgba(0, 0, 0, 0.24);
}

.sf-director-info a {
  text-decoration: none;
  color: inherit;
}

.sf-director-info a:hover {
  text-decoration: underline;
  text-decoration-color: var(--sf-primary-light);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ── Métis Badge ─────────────────────────────────────────────────────────── */

.sf-metis-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-2);
  padding: var(--sf-space-2) var(--sf-space-4);
  margin-top: var(--sf-space-3);
  background: linear-gradient(135deg, #1a472a 0%, #2d5a3f 100%);
  color: #ffffff;
  border-radius: var(--sf-radius-sm);
  font-family: var(--sf-font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: var(--sf-space-3);
}

/* ── Site Footer ────────────────────────────────────────────────────────── */

.sf-footer {
  background: linear-gradient(135deg, #1a1d23 0%, #1e293b 100%);
  border-top: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 -2px 10px rgba(0,0,0,0.18);
  padding: var(--sf-space-6) 0;
  margin-top: var(--sf-space-8);
}

.sf-footer .md-footer__inner {
  display: grid;
  grid-template-columns: minmax(8.5rem, 13rem) minmax(22rem, 1fr) minmax(8rem, 11rem);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 4rem);
  max-width: 1200px;
  padding: 0 var(--sf-space-5);
}

/* Column 1: Branding */
.sf-footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

.sf-footer-brand-top {
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
}

.sf-footer-secondary-links {
  display: grid;
  gap: 0.35rem;
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
  color: rgba(255,255,255,0.45);
  font-family: var(--sf-font-sans);
  font-size: 0.76rem;
  line-height: 1.35;
}

.sf-footer-secondary-links a {
  color: rgba(255,255,255,0.78);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.16);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.sf-footer-secondary-links a:hover {
  color: #ffffff;
  border-bottom-color: rgba(255,255,255,0.42);
}

.sf-footer-logo {
  color: #ffffff;
  display: flex;
  align-items: center;
}

.sf-footer-logo svg {
  fill: currentColor;
  width: 1.6rem;
  height: 1.6rem;
}

.sf-footer-wordmark {
  font-family: var(--sf-font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #ffffff;
}

/* Share actions */
.sf-share-row {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding-top: var(--sf-space-3);
  margin-top: var(--sf-space-3);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.sf-share-label {
  font-family: var(--sf-font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.5);
  margin-right: var(--sf-space-1);
}

.sf-share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: var(--sf-radius-full);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.85);
  border: 1px solid rgba(255,255,255,0.08);
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  padding: 0;
  text-decoration: none;
}

.sf-share-btn:hover {
  background: rgba(255,255,255,0.2);
  color: #ffffff;
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.sf-share-btn svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.sf-share-btn.sf-share-facebook svg,
.sf-share-btn.sf-share-x svg {
  fill: currentColor;
  stroke: none;
}

.sf-share-btn.sf-share-copy .sf-share-icon-check {
  display: none;
}

.sf-share-btn.sf-share-copy.copied .sf-share-icon-copy {
  display: none;
}

.sf-share-btn.sf-share-copy.copied .sf-share-icon-check {
  display: block;
}

.sf-share-btn.sf-share-copy.copied {
  background: rgba(46, 204, 113, 0.2);
  color: #2ecc71;
  border-color: rgba(46, 204, 113, 0.3);
}

/* Column 2: Legal / Copyright */
.sf-footer-legal {
  text-align: left;
  min-width: 0;
}

.sf-footer-card {
  width: min(100%, 36rem);
  padding: clamp(1rem, 2.5vw, 1.35rem);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  background: rgba(255,255,255,0.045);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04), 0 18px 36px rgba(0,0,0,0.12);
}

.sf-footer-card-copy {
  display: grid;
  gap: 0.25rem;
}

.sf-footer-legal p {
  font-family: var(--sf-font-sans);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
  margin: 0;
  line-height: 1.5;
}

.sf-footer-legal a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.sf-footer-legal a:hover {
  color: #ffffff;
  border-bottom-color: rgba(255,255,255,0.5);
}

.sf-footer-copyright {
  font-size: 0.75rem !important;
  color: rgba(255,255,255,0.5) !important;
  margin-top: 0.3rem !important;
}

/* Column 3: Utilities */
.sf-footer-utilities {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: var(--sf-space-3);
  min-width: 0;
}

.sf-footer-utilities .md-header__option {
  display: flex;
  gap: 0.25rem;
}

.sf-footer-utilities .md-header__button.md-icon {
  color: rgba(255,255,255,0.7) !important;
  background-color: rgba(255,255,255,0.06) !important;
  border-radius: 50% !important;
  width: 2rem;
  height: 2rem;
}

.sf-footer-utilities .md-header__button.md-icon:hover {
  background-color: rgba(255,255,255,0.15) !important;
  color: #ffffff !important;
}

/* Back to top */
.sf-back-to-top {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-2);
  padding: var(--sf-space-2) var(--sf-space-3);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--sf-radius-full);
  color: rgba(255,255,255,0.7);
  font-family: var(--sf-font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.sf-back-to-top:hover {
  background: rgba(255,255,255,0.15);
  color: #ffffff;
  border-color: rgba(255,255,255,0.2);
}

.sf-back-to-top svg {
  width: 0.875rem;
  height: 0.875rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Responsive */
@media (max-width: 768px) {
  .sf-footer .md-footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--sf-space-5);
  }

  .sf-footer-brand {
    align-items: center;
  }

  .sf-footer-secondary-links {
    justify-items: start;
    text-align: left;
  }

  .sf-footer-utilities {
    align-items: center;
  }

  .sf-footer-legal {
    text-align: center;
    width: min(100%, 34rem);
  }

  .sf-footer-card {
    width: 100%;
  }

  .sf-share-row {
    justify-content: center;
  }
}

/* ── Identity Page ──────────────────────────────────────────────────────── */

.sf-identity-page {
  max-width: 1100px;
  margin: 0 auto;
}

.sf-identity-intro {
  max-width: 760px;
  margin: 0 0 var(--sf-space-6);
  color: var(--sf-text-secondary);
}

.sf-identity-intro p {
  font-family: var(--sf-font-serif);
  font-size: 1.05rem;
  line-height: 1.7;
}

.sf-identity-intro ul {
  margin-top: var(--sf-space-3);
  padding-left: 1.2rem;
  font-family: var(--sf-font-sans);
  color: var(--sf-text-secondary);
}

.sf-logo-family-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sf-space-4);
}

.sf-logo-sample {
  display: grid;
  align-content: center;
  min-height: 15rem;
  margin: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid rgba(45, 74, 111, 0.16);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(17, 25, 31, 0.08);
}

.sf-logo-sample img {
  display: block;
  width: min(100%, 24rem);
  max-height: 10rem;
  margin: 0 auto;
  object-fit: contain;
}

.sf-logo-sample--dark {
  background: linear-gradient(135deg, #151b25 0%, #222d3b 100%);
  border-color: rgba(255,255,255,0.08);
  box-shadow: 0 16px 36px rgba(0,0,0,0.16);
  color-scheme: dark;
}

.sf-logo-sample--light {
  background: #ffffff;
  color-scheme: light;
}

[data-md-color-scheme="slate"] .sf-logo-sample--light {
  border-color: rgba(237, 228, 212, 0.2);
  box-shadow: 0 16px 36px rgba(0,0,0,0.22);
}

.sf-logo-sample--glyph img {
  width: 8rem;
}

.sf-logo-sample figcaption {
  margin-top: var(--sf-space-4);
  color: #3f5d86;
  font-family: var(--sf-font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.4;
  text-align: center;
  text-transform: uppercase;
}

.sf-logo-sample--dark figcaption {
  color: rgba(255,255,255,0.66);
}

@media (max-width: 760px) {
  .sf-logo-family-grid {
    grid-template-columns: 1fr;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   People Section Styles
   ═══════════════════════════════════════════════════════════════════════════ */

.sf-people-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto 3rem;
}

.sf-people-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  box-shadow: var(--sf-shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.sf-people-card {
  position: relative;
  overflow: hidden;
}

.sf-people-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  opacity: 0;
  transition: opacity var(--sf-transition-base);
}

.sf-people-card:hover {
  box-shadow: var(--sf-shadow-md);
  transform: translateY(-2px);
}

.sf-people-card:hover::before {
  opacity: 1;
}

.sf-people-photo .sf-avatar {
  width: 140px !important;
  height: 140px !important;
  border-radius: var(--sf-radius-full) !important;
  object-fit: cover;
  margin-bottom: 0.65rem;
  border: 3px solid var(--sf-border);
}

.sf-people-photo .sf-avatar-placeholder {
  width: 140px !important;
  height: 140px !important;
  border-radius: var(--sf-radius-full) !important;
  margin-bottom: 0.65rem;
  font-size: 3rem !important;
}

.sf-people-name {
  font-family: var(--sf-font-sans);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--sf-text-primary);
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

.sf-people-role {
  font-family: var(--sf-font-sans);
  font-size: 0.9rem;
  color: var(--sf-text-secondary);
  margin: 0 0 0.5rem;
  line-height: 1.5;
}

.sf-people-tags {
  font-family: var(--sf-font-mono);
  font-size: 0.8rem;
  color: var(--sf-text-tertiary);
  margin: 0 0 1.5rem;
}

.md-typeset .sf-associate-box {
  max-width: 1100px;
  margin: 0 auto 3rem;
  padding: 1.5rem 2rem;
  background: var(--sf-surface-subtle);
  border-left: 4px solid var(--sf-primary);
  border-radius: 0 var(--sf-radius-md) var(--sf-radius-md) 0;
  font-family: var(--sf-font-serif);
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--sf-text-secondary);
}

.md-typeset .sf-associate-box p {
  margin: 0 0 0.75rem;
}

.md-typeset .sf-associate-box > .sf-associate-box__heading {
  font-family: var(--sf-font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--sf-text-primary);
}

.md-typeset .sf-associate-box p:last-child {
  margin-bottom: 0;
}

.md-typeset .sf-associate-box a {
  color: var(--sf-primary);
  font-weight: 600;
  text-decoration: none;
}

.md-typeset .sf-associate-box a:hover {
  text-decoration: underline;
}

.people-section {
  max-width: 1100px;
  margin: 0 auto 3rem;
}

.people-section__intro {
  max-width: 100%;
  margin: -0.5rem 0 1.5rem;
  color: var(--sf-text-secondary);
  font-family: var(--sf-font-serif);
  font-size: 0.95rem;
  line-height: 1.55;
}

.associate-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  justify-content: stretch;
  align-items: stretch;
}

.associate-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100%;
  padding: 1.55rem 1.35rem;
  overflow: hidden;
  text-align: center;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  box-shadow: var(--sf-shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.associate-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #f2a65a 0%, var(--sf-primary) 100%);
  opacity: 0;
  transition: opacity var(--sf-transition-base);
}

.associate-card:hover {
  box-shadow: var(--sf-shadow-md);
  transform: translateY(-2px);
}

.associate-card:hover::before {
  opacity: 1;
}

.associate-card--coauthor {
  border-color: var(--sf-border);
}

.associate-card__image {
  display: block;
  width: 140px;
  height: 140px;
  margin-bottom: 0.65rem;
  object-fit: cover;
  border: 3px solid var(--sf-border);
  border-radius: var(--sf-radius-full);
}

.associate-card__body {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding: 0;
}

.associate-card__publication-label {
  margin: 0 0 0.45rem;
  color: #b9762d;
  font-family: var(--sf-font-sans);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.associate-card__name {
  margin: 0 0 0.4rem;
  color: var(--sf-text-primary);
  font-family: var(--sf-font-sans);
  font-size: 1.16rem;
  font-weight: 750;
  line-height: 1.25;
}

.associate-card__role {
  margin: 0 0 0.65rem;
  color: var(--sf-text-secondary);
  font-family: var(--sf-font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1.38;
}

.associate-card__focus {
  margin: 0 0 0.75rem;
  color: var(--sf-text-secondary);
  font-family: var(--sf-font-serif);
  font-size: 0.84rem;
  line-height: 1.42;
}

.associate-card__tags {
  margin: 0 0 0.75rem;
  color: var(--sf-text-tertiary);
  font-family: var(--sf-font-mono);
  font-size: 0.75rem;
  line-height: 1.5;
}

.associate-card__links,
.associate-card__publication-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-top: 0.6rem;
}

.associate-card__links a,
.associate-card__publication-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-family: var(--sf-font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  padding: var(--sf-space-2) var(--sf-space-4);
  border-radius: var(--sf-radius-sm);
  border-bottom: 0;
  text-decoration: none;
  overflow: hidden;
  transition: all var(--sf-transition-fast);
}

.associate-card__links a::before,
.associate-card__publication-links a::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  opacity: 0.85;
}

[data-md-color-scheme="default"] .associate-card__links a,
[data-md-color-scheme="default"] .associate-card__publication-links a {
  background: var(--sf-surface-subtle);
  color: var(--sf-primary-light);
  border: 1px solid var(--sf-border-strong);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

[data-md-color-scheme="default"] .associate-card__links a::before,
[data-md-color-scheme="default"] .associate-card__publication-links a::before {
  background: linear-gradient(180deg, var(--sf-accent-light) 0%, var(--sf-accent) 100%);
}

[data-md-color-scheme="slate"] .associate-card__links a,
[data-md-color-scheme="slate"] .associate-card__publication-links a {
  background: #3d5a80;
  color: #ffffff;
  border: 1px solid #3d5a80;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

[data-md-color-scheme="slate"] .associate-card__links a::before,
[data-md-color-scheme="slate"] .associate-card__publication-links a::before {
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-accent-dark) 100%);
}

.associate-card__links a:hover,
.associate-card__publication-links a:hover {
  border-bottom: 0;
  text-decoration: none;
  transform: translateY(-2px);
}

[data-md-color-scheme="default"] .associate-card__links a:hover,
[data-md-color-scheme="default"] .associate-card__publication-links a:hover {
  background: var(--sf-primary-light);
  color: #ffffff;
  border-color: var(--sf-primary-light);
  box-shadow: 0 6px 16px rgba(45, 74, 111, 0.18);
}

[data-md-color-scheme="slate"] .associate-card__links a:hover,
[data-md-color-scheme="slate"] .associate-card__publication-links a:hover {
  background: #2d3a4f;
  color: #ffffff;
  border-color: #2d3a4f;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

[data-md-color-scheme="default"] .associate-card__links a:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="default"] .associate-card__publication-links a:visited:not(:hover):not(:focus-visible) {
  color: var(--sf-primary-light);
}

[data-md-color-scheme="slate"] .associate-card__links a:visited:not(:hover):not(:focus-visible),
[data-md-color-scheme="slate"] .associate-card__publication-links a:visited:not(:hover):not(:focus-visible) {
  color: #ffffff;
}

.associate-card__publication {
  margin-top: 0.8rem;
  padding: 0.75rem;
  text-align: left;
  background: rgba(242, 166, 90, 0.08);
  border: 1px solid rgba(242, 166, 90, 0.24);
  border-radius: var(--sf-radius-md);
}

.associate-card__publication-title {
  margin: 0 0 0.45rem;
  color: var(--sf-text-primary);
  font-family: var(--sf-font-sans);
  font-size: 0.93rem;
  font-weight: 750;
  line-height: 1.35;
}

.associate-card__publication-citation {
  margin: 0;
  color: var(--sf-text-secondary);
  font-family: var(--sf-font-serif);
  font-size: 0.8rem;
  line-height: 1.5;
}

[data-md-color-scheme="slate"] .associate-card {
  background: var(--sf-surface);
  border-color: var(--sf-border);
}

[data-md-color-scheme="slate"] .associate-card__publication-label {
  color: #f0b978;
}

[data-md-color-scheme="slate"] .associate-card__publication {
  background: rgba(242, 166, 90, 0.1);
  border-color: rgba(242, 166, 90, 0.26);
}

/* Homepage hero CTA */
.sf-hero-cta {
  margin-top: 1.5rem;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .sf-people-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .people-section {
    margin-bottom: 2.5rem;
  }

  .associate-grid {
    grid-template-columns: 1fr;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   Profile Bio — styled narrative block with drop cap
   ═══════════════════════════════════════════════════════════════════════════ */

.sf-profile-bio {
  margin: 1.5rem 2.5rem;
  padding-left: 1.5rem;
  position: relative;
}

.sf-profile-bio::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--sf-accent) 0%, var(--sf-primary) 100%);
  border-radius: 0 2px 2px 0;
}

.sf-profile-bio p {
  font-family: var(--sf-font-serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--sf-text-secondary);
  margin-bottom: 1.25rem;
}

.sf-profile-bio strong {
  color: var(--sf-text-primary);
  font-weight: 700;
}

.sf-profile-bio em {
  font-style: italic;
  color: var(--sf-text-secondary);
}

.sf-profile-bio p:last-child {
  margin-bottom: 0;
}

.sf-profile-bio p:first-child::first-letter {
  float: left;
  font-family: var(--sf-font-serif);
  font-size: 3.4rem;
  font-weight: 700;
  line-height: 0.75;
  padding-right: 0.55rem;
  padding-top: 0.2rem;
  background: linear-gradient(135deg, var(--sf-primary-light) 0%, var(--sf-accent) 60%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Responsive bio */
@media (max-width: 768px) {
  .sf-profile-bio {
    margin: 1rem 0.75rem;
    padding-left: 1rem;
  }

  .sf-profile-bio p {
    font-size: 1rem;
    line-height: 1.7;
    text-align: left;
  }

  .sf-profile-bio p:first-child::first-letter {
    font-size: 2.8rem;
  }

  .sf-manifesto {
    padding-left: 1rem;
  }

  .sf-manifesto p:first-child::first-letter {
    font-size: 2.8rem;
  }

}

/* ═══════════════════════════════════════════════════════════════════════════
   Researcher Metrics Dashboard Styles
   Header → Marquee (RI Score) → Nav bar → Grid (7 metric cards)
   ═══════════════════════════════════════════════════════════════════════════ */

.sf-metrics-dashboard {
  margin: var(--sf-space-5) 0;
  padding: var(--sf-space-5);
  background: linear-gradient(145deg, var(--sf-surface) 0%, rgba(30,41,59,0.25) 100%);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  box-shadow: var(--sf-shadow-sm);
}

.sf-metrics-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0.875rem;
}

/* Grid span utilities */
.sf-metrics-span-12 { grid-column: span 12; }
.sf-metrics-span-4  { grid-column: span 4; }
.sf-metrics-span-3  { grid-column: span 3; }

.sf-metrics-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.1rem 0.6rem;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.sf-metrics-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sf-primary) 0%, var(--sf-primary-light) 100%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.sf-metrics-card:hover {
  box-shadow: var(--sf-shadow-md);
  transform: translateY(-3px);
  border-color: rgba(255,255,255,0.12);
}

.sf-metrics-card:hover::before {
  opacity: 1;
}

/* Featured RI Score card — full-width marquee (outside grid) */
.sf-metrics-card--featured {
  background: linear-gradient(145deg, var(--sf-surface) 0%, rgba(30,41,59,0.5) 100%);
  border: 1px solid rgba(255,255,255,0.1);
  justify-content: center;
  padding: 2.5rem 1.5rem;
  gap: 0.4rem;
  margin-bottom: 0;
}

.sf-metrics-card--featured::before {
  opacity: 1;
  height: 5px;
  background: linear-gradient(90deg, var(--sf-primary) 0%, var(--sf-accent) 40%, var(--sf-primary-light) 100%);
}

.sf-metrics-card--featured .sf-metrics-value {
  font-size: 4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--sf-primary-light) 0%, var(--sf-accent) 60%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.35rem;
  line-height: 1.15;
  padding-bottom: 0.15rem;
}

.sf-metrics-card--featured .sf-metrics-label {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--sf-text-primary);
  text-transform: uppercase;
  font-weight: 700;
}

.sf-metrics-card--featured .sf-metrics-source {
  font-size: 0.7rem;
  color: var(--sf-text-secondary);
  margin-top: 0.25rem;
}

/* Percentile badges */
.sf-metrics-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
  margin: 0.4rem 0 0.2rem;
}

.sf-metrics-pill {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--sf-radius-full);
  font-family: var(--sf-font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--sf-primary-light);
  letter-spacing: 0.02em;
}

/* Standard cards */
.sf-metrics-value {
  font-family: var(--sf-font-sans);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--sf-text-primary);
  line-height: 1.15;
  margin-bottom: 0.35rem;
  transition: transform 0.2s ease;
}

.sf-metrics-card:hover .sf-metrics-value {
  transform: scale(1.05);
}

.sf-metrics-label {
  font-family: var(--sf-font-sans);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--sf-text-secondary);
  line-height: 1.3;
  margin-bottom: 0.2rem;
}

.sf-metrics-source {
  font-family: var(--sf-font-mono);
  font-size: 0.6rem;
  color: var(--sf-text-tertiary);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.sf-metrics-timestamp {
  font-family: var(--sf-font-mono);
  font-size: 0.68rem;
  color: var(--sf-text-tertiary);
  text-align: right;
  margin-top: var(--sf-space-3);
  margin-bottom: 0;
  opacity: 0.7;
}

.sf-metrics-dashboard--empty {
  padding: 2rem;
  background: var(--sf-surface-subtle);
  border: 1px dashed var(--sf-border);
  border-radius: var(--sf-radius-md);
  text-align: center;
}

.sf-metrics-pending {
  font-family: var(--sf-font-sans);
  font-size: 0.9rem;
  color: var(--sf-text-tertiary);
  margin: 0;
  font-style: italic;
}

/* ═══════════════════════════════════════════════════════════════════════════
   Profile section nav — diminished pills inside the profile card
   Sits under the social/identity links as a secondary row
   ═══════════════════════════════════════════════════════════════════════════ */

.sf-profile-card .sf-profile-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.5rem;
}

.sf-profile-nav-link {
  font-family: var(--sf-font-sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--sf-text-tertiary);
  background: transparent;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--sf-radius-full);
  padding: 0.2rem 0.55rem;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.sf-profile-nav-link:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.3);
  color: var(--sf-primary-light);
}

/* Responsive */
@media (max-width: 768px) {
  .sf-metrics-dashboard {
    padding: var(--sf-space-4) var(--sf-space-3);
  }

  .sf-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
  }

  /* Mobile: all grid cards fill 2-col */
  .sf-metrics-span-4,
  .sf-metrics-span-3 {
    grid-column: span 1;
  }

  .sf-metrics-card--featured {
    padding: 1.75rem 1rem;
  }

  .sf-metrics-card--featured .sf-metrics-value {
    font-size: 3rem;
  }

  .sf-metrics-value {
    font-size: 1.35rem;
  }

  .sf-profile-nav {
    gap: 0.4rem;
  }

  .sf-profile-nav-link {
    font-size: 0.72rem;
    padding: 0.35rem 0.7rem;
  }
}


/* ── Content Directory ───────────────────────────────────────────────────── */

.sf-directory-intro {
  font-family: var(--sf-font-serif);
  font-size: 1rem;
  color: var(--sf-text-secondary);
  margin-bottom: var(--sf-space-5);
  max-width: 65ch;
}

.sf-directory-heading {
  font-family: var(--sf-font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--sf-text-primary);
  margin: var(--sf-space-5) 0 var(--sf-space-3);
  padding-bottom: var(--sf-space-2);
  border-bottom: 2px solid var(--sf-border);
}

.sf-directory-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--sf-space-5);
}

.sf-directory-list li {
  font-family: var(--sf-font-sans);
  font-size: 0.9rem;
  line-height: 1.5;
  padding: var(--sf-space-2) 0;
  border-bottom: 1px solid var(--sf-border-subtle);
}

.sf-directory-list li:last-child {
  border-bottom: none;
}

.sf-directory-list a {
  color: var(--sf-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--sf-transition-fast);
}

.sf-directory-list a:hover {
  color: var(--sf-primary-dark);
  text-decoration: underline;
}

.sf-directory-meta {
  color: var(--sf-text-tertiary);
  font-size: 0.8rem;
}

/* ── Typography Convention: Published Titles ───────────────────────────────
   Publication, Formal Research, essay, and featured-content titles use
   ScholarFlow's standard sans family: Space Grotesk. Body copy remains in
   Playfair unless a component is clearly interface metadata or control text. */

.md-typeset .card-title,
.md-typeset .sf-featured-title,
.md-typeset .sf-featured-title a,
.md-typeset .sf-featured-essay-title,
.md-typeset .sf-featured-essay-title a,
.md-typeset .essay-card h3,
.md-typeset .essay-card h3 a,
.md-typeset .essay-archive-item h3,
.md-typeset .essay-archive-item h3 a,
.md-typeset .associate-card__publication-title {
  font-family: var(--sf-font-sans);
}

.md-typeset .card-abstract,
.md-typeset .essay-summary,
.md-typeset .essay-archive-item p,
.md-typeset .associate-card__focus,
.md-typeset .associate-card__publication-citation,
.md-typeset .people-section__intro,
.md-typeset .sf-associate-box {
  font-family: var(--sf-font-serif);
}

/* ── Authoritative House Style: Large Card Heading Tone ─────────────────────
   Large card names/titles should read as nuanced ScholarFlow blue, not stark
   black in light mode or pure white in dark mode. Linked headings keep their
   component-specific hover treatment via :not(:hover). */

.md-typeset .card-title,
.md-typeset .sf-featured-essay-title,
.md-typeset .sf-featured-essay-title a:not(:hover),
.md-typeset .essay-card h3,
.md-typeset .essay-card h3 a:not(:hover),
.md-typeset .essay-archive-item h3,
.md-typeset .essay-archive-item h3 a:not(:hover),
.md-typeset .sf-pillar h4,
.md-typeset .sf-featured-title,
.md-typeset .sf-featured-title a:not(:hover),
.md-typeset .sf-working-name,
.md-typeset .sf-people-name,
.md-typeset .sf-hero-name,
.md-typeset .sf-profile-info h3,
.md-typeset .sf-research-title,
.md-typeset .sf-research-value-title,
.md-typeset .sf-directory-heading {
  color: #345b82;
}

[data-md-color-scheme="slate"] .md-typeset .card-title,
[data-md-color-scheme="slate"] .md-typeset .sf-featured-essay-title,
[data-md-color-scheme="slate"] .md-typeset .sf-featured-essay-title a:not(:hover),
[data-md-color-scheme="slate"] .md-typeset .essay-card h3,
[data-md-color-scheme="slate"] .md-typeset .essay-card h3 a:not(:hover),
[data-md-color-scheme="slate"] .md-typeset .essay-archive-item h3,
[data-md-color-scheme="slate"] .md-typeset .essay-archive-item h3 a:not(:hover),
[data-md-color-scheme="slate"] .md-typeset .sf-pillar h4,
[data-md-color-scheme="slate"] .md-typeset .sf-featured-title,
[data-md-color-scheme="slate"] .md-typeset .sf-featured-title a:not(:hover),
[data-md-color-scheme="slate"] .md-typeset .sf-working-name,
[data-md-color-scheme="slate"] .md-typeset .sf-people-name,
[data-md-color-scheme="slate"] .md-typeset .sf-hero-name,
[data-md-color-scheme="slate"] .md-typeset .sf-profile-info h3,
[data-md-color-scheme="slate"] .md-typeset .sf-research-title,
[data-md-color-scheme="slate"] .md-typeset .sf-research-value-title,
[data-md-color-scheme="slate"] .md-typeset .sf-directory-heading {
  color: #d9e6f7;
}