/* ═══════════════════════════════════════════════════
   JASMINE E. TRAN — PERSONAL SITE
   style.css — Shared across all pages
═══════════════════════════════════════════════════ */

/* ── GOOGLE FONTS ─────────────────────────────────── */
@import url("https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,600&family=Lora:ital,wght@0,400;0,500;0,600;1,400;1,600&display=swap");

/* ── LIGHT MODE TOKENS ─────────────────────────────── */
:root {
  --sage: #7a9e7e;
  --sage-light: #a8c4aa;
  --sage-pale: #e8f0e9;
  --sage-dark: #4e6e52;
  --sage-darker: #3a5440;

  --bg: #faf8f4;
  --bg-alt: #f2ede6;
  --bg-card: #ffffff;
  --surface: #f5f1eb;

  --text: #000000;
  --text-muted: #1d1c1b;
  --text-faint: #3f3c39;

  --border: #e3ddd5;
  --border-light: #ede9e2;

  --shadow-sm: 0 2px 8px rgba(60, 50, 40, 0.06);
  --shadow-md: 0 6px 24px rgba(60, 50, 40, 0.1);
  --shadow-lg: 0 16px 48px rgba(60, 50, 40, 0.12);

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;

  --nav-h: 64px;
  --max-w: 820px;

  --transition: 0.22s ease;
}

/* ── DARK MODE TOKENS ──────────────────────────────── */
/*
   Contrast ratios verified against WCAG AA (4.5:1 normal, 3:1 large text)
   Background reference: --bg #162017 (L≈0.009), --bg-card #1e2b1f (L≈0.017)

   --text          #edeae3  →  L≈0.845  → 15:1 on bg   ✓
   --text-muted    #b8b3ab  →  L≈0.455  →  7.8:1 on bg  ✓
   --text-faint    #8d8880  →  L≈0.246  →  4.6:1 on bg  ✓
   --sage-dark     #c0dcc3  →  L≈0.575  →  9.6:1 on bg  ✓ (links)
*/
[data-theme="dark"] {
  --sage: #8fc494;
  --sage-light: #5a8860;
  --sage-pale: #1c2e1e;
  --sage-dark: #c0dcc3;
  --sage-darker: #d6ead8;

  --bg: #162017;
  --bg-alt: #1b271c;
  --bg-card: #1e2b1f;
  --surface: #243026;

  --text: #ffffff;
  --text-muted: #e9e6e1;
  --text-faint: #d3cdc5;

  --border: #304232;
  --border-light: #263829;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
}

/* ── RESET ─────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Nunito", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
  transition:
    background var(--transition),
    color var(--transition);
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
}

/* ── GRAIN OVERLAY ─────────────────────────────────── */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.018;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px;
}

/* ══════════════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════════════ */
nav {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--nav-h);
  background: var(--sage-light);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition:
    background var(--transition),
    border-color var(--transition);
}

[data-theme="dark"] nav {
  background: rgba(77, 97, 81, 0.85);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-logo {
  font-family: "Lora", serif;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.01em;
  flex-shrink: 0;
  transition: color var(--transition);
}

.nav-logo:hover {
  color: var(--sage);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.38rem 0.8rem;
  border-radius: 99px;
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  background: var(--sage-pale);
  color: var(--sage-dark);
}

.nav-links a.active {
  color: var(--sage-dark);
  background: var(--sage-pale);
}

.nav-links a.cv-link {
  background: #fff !important;
  color: #000000;
}

.nav-links a.cv-link:hover {
  background: var(--sage-darker);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Dark mode toggle */
.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 99px;
  width: 42px;
  height: 24px;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition:
    background var(--transition),
    border-color var(--transition);
  display: flex;
  align-items: center;
  padding: 0 3px;
}

.theme-toggle:hover {
  border-color: var(--sage-light);
}

.theme-toggle-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--sage);
  position: absolute;
  left: 3px;
  transition:
    transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
    background 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
}

[data-theme="dark"] .theme-toggle-thumb {
  transform: translateX(18px);
}

/* ══════════════════════════════════════════════════
   HAMBURGER BUTTON  (add this block anywhere in style.css)
══════════════════════════════════════════════════ */
.nav-hamburger {
  display: none; /* hidden on desktop */
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
  transition:
    background var(--transition),
    border-color var(--transition);
  padding: 0;
}

.nav-hamburger:hover {
  background: var(--sage-pale);
  border-color: var(--sage-light);
}

.nav-hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition:
    transform 0.25s ease,
    opacity 0.25s ease;
  transform-origin: center;
}

/* Animated X when open */
.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ══════════════════════════════════════════════════
   LAYOUT HELPERS
══════════════════════════════════════════════════ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 4.5rem 0;
}

section + section {
  border-top: 1px solid var(--border);
}

/* Section heading */
.section-heading {
  font-family: "Lora", serif;
  font-size: 1.65rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-heading::after {
  content: "";
  flex: 1;
  height: 1.5px;
  background: linear-gradient(90deg, var(--sage-light) 0%, transparent 100%);
  opacity: 0.45;
}

.section-heading .emoji {
  font-style: normal;
  font-size: 1.1rem;
  font-family: "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

.section-heading .fa-icon,
.section-heading i {
  font-size: 1rem;
  color: var(--sage);
  width: 1.25rem;
  text-align: center;
  flex-shrink: 0;
}

.gif-badge.hero-gif {
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
  width: 115px;
  height: 115px;
  margin-bottom: 1rem;
  justify-content: flex-start;
}

.gif-badge.hero-gif img {
  width: 115px;
  height: 115px;
  border-radius: 10px;
}

.gif-badge.hero-gif:hover {
  transform: scale(1.06) rotate(-2deg);
}

/* ══════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════ */
#hero {
  padding: 5.5rem 0 4.5rem;
  border-top: none;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 3rem;
  align-items: center;
}

.hero-text {
  animation: fadeUp 0.65s ease both;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--sage-pale);
  color: var(--sage-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.32rem 0.85rem;
  border-radius: 99px;
  margin-bottom: 1.2rem;
  border: 1px solid var(--border-light);
}

.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sage);
  flex-shrink: 0;
}

.hero-text h1 {
  font-family: "Lora", serif;
  font-size: clamp(2.4rem, 5.5vw, 3.4rem);
  font-weight: 600;
  line-height: 1.13;
  margin-bottom: 0.6rem;
  color: var(--text);
}

.hero-text h1 em {
  color: var(--sage);
  font-style: italic;
}

.hero-tagline {
  color: var(--text-muted);
  font-size: 1.02rem;
  font-weight: 500;
  margin-bottom: 2rem;
}

/* Social chips */
.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.social-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--sage-dark);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.42rem 0.9rem;
  border-radius: 99px;
  transition: all var(--transition);
}

.social-chip:hover {
  background: var(--sage-pale);
  border-color: var(--sage-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.social-chip svg {
  flex-shrink: 0;
}

/* Hero photo stack */
.hero-photos {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  animation: fadeUp 0.65s 0.15s ease both;
}

.headshot-ring {
  position: relative;
  width: 225px;
  height: 225px;
}

.headshot-ring::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--sage-light);
  opacity: 0.55;
  animation: spin 20s linear infinite;
}

.headshot-ring::after {
  content: "";
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 1px solid var(--sage-pale);
  opacity: 0.4;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.headshot-ring img {
  width: 225px;
  height: 225px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-card);
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 1;
}

.gif-badge {
  background: var(--sage-pale);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition);
}

.gif-badge:hover {
  transform: scale(1.05) rotate(-2deg);
}

.gif-badge img {
  width: 52px;
  height: 52px;
  border-radius: 6px;
}

/* ══════════════════════════════════════════════════
   ABOUT SECTION
══════════════════════════════════════════════════ */
.about-prose p {
  color: var(--text-muted);
  font-size: 0.97rem;
  margin-bottom: 1.1rem;
}

.about-prose p:last-child {
  margin-bottom: 0;
}

.about-prose a {
  color: var(--sage-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--sage-light);
  transition: color var(--transition);
}

.about-prose a:hover {
  color: var(--sage);
}

.about-prose strong {
  color: var(--text);
  font-weight: 700;
}

/* ══════════════════════════════════════════════════
   GIF CAROUSEL
══════════════════════════════════════════════════ */
#gif-gallery {
  padding: 4rem 0;
}

.carousel-wrap {
  position: relative;
}

.carousel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.carousel-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.carousel-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 99px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition);
  flex-shrink: 0;
}

.carousel-btn:hover {
  background: var(--sage-pale);
  border-color: var(--sage-light);
  color: var(--sage-dark);
}

.carousel-btn svg {
  pointer-events: none;
}

.carousel-track-outer {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.carousel-track {
  display: flex;
  gap: 1rem;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.carousel-slide {
  flex: 0 0 calc((100% - 2rem) / 3);
  min-width: 0;
}

.gif-card {
  background: var(--bg-card);
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  aspect-ratio: 1 / 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1.5rem;
  transition: all var(--transition);
  cursor: default;
  overflow: hidden;
  position: relative;
}

.gif-card.has-content {
  border-style: solid;
  border-color: var(--border-light);
}

.gif-card.has-content img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
}

.gif-card:hover {
  border-color: var(--sage-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.gif-placeholder-icon {
  font-size: 2.2rem;
  opacity: 0.5;
}

.gif-placeholder-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-faint);
  text-align: center;
  letter-spacing: 0.04em;
}

.gif-placeholder-sub {
  font-size: 0.7rem;
  color: var(--text-faint);
  text-align: center;
  font-style: italic;
  opacity: 0.7;
}

/* Carousel dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1rem;
}

.carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 99px;
  background: var(--border);
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.carousel-dot.active {
  background: var(--sage);
  width: 22px;
}

/* ══════════════════════════════════════════════════
   MENTORSHIP CARD
══════════════════════════════════════════════════ */
.mentorship-card {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 2rem;
  align-items: center;
}

.mentorship-card-body p {
  color: var(--text-muted);
  font-size: 0.97rem;
  margin-bottom: 1rem;
}

.mentorship-card-body p:last-of-type {
  margin-bottom: 1.5rem;
}

.mentorship-card-body strong {
  color: var(--text);
  font-weight: 700;
}

.mentorship-img-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  border: 2px solid var(--sage-light);
  flex-shrink: 0;
  position: relative;
}

.mentorship-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.45s ease;
}

.mentorship-card:hover .mentorship-img {
  transform: scale(1.03);
}

.mentorship-img-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--bg-alt);
  border: 2px dashed var(--border);
  text-align: center;
  padding: 1rem;
}

.mentorship-img-placeholder i {
  font-size: 2.2rem;
  color: var(--border);
  margin-bottom: 0.25rem;
}

.mentorship-img-placeholder span {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
}

.mentorship-img-placeholder code {
  font-size: 0.72rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  color: var(--sage-dark);
  font-family: monospace;
}

/* Stack vertically on mobile */
@media (max-width: 640px) {
  .mentorship-card {
    grid-template-columns: 1fr;
  }
  .gif-badge.hero-gif {
    margin: 0 auto;
  }
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--sage);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.65rem 1.3rem;
  border-radius: 99px;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

.cta-btn:hover {
  background: var(--sage-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74, 110, 82, 0.3);
}

/* ══════════════════════════════════════════════════
   TIMELINE (Conferences)
══════════════════════════════════════════════════ */
.timeline {
  display: flex;
  flex-direction: column;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border-light);
  align-items: baseline;
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-date {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--sage-dark);
  background: var(--sage-pale);
  border: 1px solid var(--border-light);
  padding: 0.22rem 0.65rem;
  border-radius: 99px;
  text-align: center;
  white-space: nowrap;
}

.timeline-content {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.timeline-content a {
  color: var(--sage-dark);
  font-weight: 700;
  text-underline-offset: 3px;
  text-decoration: underline;
  text-decoration-color: var(--sage-light);
}

.timeline-content a:hover {
  color: var(--sage);
}

.badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.15rem 0.55rem;
  border-radius: 99px;
  margin-left: 0.45rem;
  vertical-align: middle;
}

.badge-upcoming {
  background: var(--sage);
  color: #fff;
}
.badge-presenting {
  background: var(--bg-alt);
  color: var(--sage-dark);
  border: 1px solid var(--border);
}

/* ══════════════════════════════════════════════════
   SKILLS
══════════════════════════════════════════════════ */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.skill-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text);
  transition: all var(--transition);
}

.skill-pill:hover {
  background: var(--sage-pale);
  border-color: var(--sage-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.skill-pill img {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════
   RESEARCH PAGE
══════════════════════════════════════════════════ */
.page-hero {
  padding: 4rem 0 3rem;
  border-top: none;
}

.page-hero h1 {
  font-family: "Lora", serif;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.page-hero h1 em {
  color: var(--sage);
  font-style: italic;
}

.page-hero p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 560px;
}

.page-hero-gif {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeUp 0.65s 0.15s ease both;
  width: 170px;
  flex-shrink: 0;
}

.page-hero-gif-img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  border-radius: var(--radius);
  transition: transform var(--transition);
}

.research-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2rem;
  margin-bottom: 1.25rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.research-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--sage);
  opacity: 0;
  transition: opacity var(--transition);
}

.research-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  object-position: center 50%;
}

.research-img-wrap {
  width: 100%;
  aspect-ratio: 16 / 6;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: relative;
  border-radius: var(--radius-lg);
  border: 3px solid var(--sage-light);
  margin-bottom: 1rem;
}

.research-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--sage-light);
}

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

.research-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.research-card h3 {
  font-family: "Lora", serif;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
}

.research-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: 99px;
  background: var(--sage-pale);
  color: var(--sage-dark);
  border: 1px solid var(--border-light);
  white-space: nowrap;
  flex-shrink: 0;
}

.research-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.research-card p:last-child {
  margin-bottom: 0;
}

.research-card a {
  color: var(--sage-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--sage-light);
}

.research-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-faint);
}

.research-meta span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* Collab section */
.collab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 0;
}

.collab-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  transition: all var(--transition);
}

.collab-card:hover {
  border-color: var(--sage-light);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.collab-card a {
  text-decoration: none;
  color: var(--sage-dark);
  font-weight: 700;
  font-size: 0.92rem;
}

.collab-card p {
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-top: 0.3rem;
}

/* ══════════════════════════════════════════════════
   RESOURCES PAGE
══════════════════════════════════════════════════ */
.resource-section + .resource-section {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-light);
}

.tip-box {
  background: var(--sage-pale);
  border: 1px solid var(--sage-light);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.tip-box strong {
  color: var(--text);
}

.tip-box a {
  color: var(--sage-dark);
  font-weight: 700;
  text-underline-offset: 3px;
}

.resource-group {
  margin-bottom: 0;
}

.resource-group-title {
  font-family: "Lora", serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.resource-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.resource-list li a {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  text-decoration: none;
  padding: 0.85rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  color: var(--text);
}

.resource-list li a:hover {
  border-color: var(--sage-light);
  background: var(--sage-pale);
  transform: translateX(4px);
}

.resource-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

.resource-label {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--sage-dark);
  display: block;
}

.resource-desc {
  font-size: 0.82rem;
  color: var(--text-faint);
  display: block;
  margin-top: 0.1rem;
}

/* ══════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════ */
footer {
  border-top: 1px solid var(--border);
  padding: 2.25rem 0;
  margin-top: 2rem;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-inner p {
  font-size: 0.82rem;
  color: var(--text-faint);
}

.footer-inner a {
  color: var(--sage-dark);
  font-weight: 700;
  text-decoration: none;
}

.footer-inner a:hover {
  color: var(--sage);
}

.footer-socials {
  display: flex;
  gap: 0.6rem;
}

.footer-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  text-decoration: none;
  transition: all var(--transition);
}

.footer-icon:hover {
  background: var(--sage-pale);
  border-color: var(--sage-light);
  color: var(--sage-dark);
}

/* ══════════════════════════════════════════════════
   SCROLL REVEAL ANIMATIONS
══════════════════════════════════════════════════ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════ */
@media (max-width: 640px) {
  /* --- Nav --- */
  .nav-hamburger {
    display: flex; /* show on mobile */
  }

  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--sage-light);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 0.75rem 1rem 1rem;
    box-shadow: var(--shadow-md);

    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition:
      max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.25s ease,
      padding 0.3s ease;
  }

  [data-theme="dark"] .nav-links {
    background: rgba(30, 43, 31, 0.97);
  }

  .nav-links.open {
    max-height: 320px;
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    display: block;
    font-size: 0.95rem;
    padding: 0.55rem 0.9rem;
    border-radius: var(--radius-sm);
  }

  .nav-links a.cv-link {
    margin-top: 0.25rem;
    text-align: center;
  }

  /* --- Hero --- */
  .hero-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-photos {
    flex-direction: row;
    justify-content: center;
    order: -1;
  }

  .hero-eyebrow {
    margin: 0 auto 1.2rem;
  }

  .social-row {
    justify-content: center;
  }

  .headshot-ring,
  .headshot-ring img {
    width: 130px;
    height: 130px;
  }

  /* --- Carousel --- */
  .carousel-slide {
    flex: 0 0 calc((100% - 1rem) / 2);
  }

  /* --- Timeline --- */
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  /* --- Collab --- */
  .collab-grid {
    grid-template-columns: 1fr;
  }
}