/* ============================================================
   ANMOL SIKKA — Warm Scientific Theme
   Design System & Global Styles
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;600;700&family=Barlow+Condensed:wght@600;700&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Custom Properties (NASA Psyche Brand Theme) ───────── */
:root {
  /* Official NASA Psyche Mission Brand Guide Palette */
  --psyche-mustard:     #f9a000;
  --psyche-gold:        #f47c33;
  --psyche-coral:       #ef5966;
  --psyche-magenta:     #a53f5b;
  --psyche-purple:      #592651;
  --psyche-dark-purple: #302144;
  --psyche-black:       #12031d;
  --psyche-cream:       #faf8f5;
  --psyche-cream-dark:  #f3eee8;
  --psyche-border:      #e6dfd5;

  /* Theme Mapping (Light Mode) */
  --cream:            var(--psyche-cream);        /* #faf8f5 */
  --cream-dark:       var(--psyche-cream-dark);   /* #f3eee8 */
  --cream-border:     var(--psyche-border);       /* #e6dfd5 */
  
  --charcoal:         var(--psyche-dark-purple);  /* #302144 */
  --charcoal-mid:     #4d3a63;
  --charcoal-light:   #6d5b82;

  --terracotta:       var(--psyche-gold);        /* #f47c33 */
  --terracotta-light: var(--psyche-mustard);     /* #f9a000 */
  --terracotta-pale:  rgba(244, 124, 51, 0.12);

  --gold:             var(--psyche-mustard);     /* #f9a000 */
  --sage:             var(--psyche-magenta);     /* #a53f5b */
  --white:            #ffffff;

  /* Typography (NASA Psyche Brand Guide: Knockout for Titles/Headings, Helvetica for Body) */
  --font-heading: 'Knockout', 'Oswald', 'Barlow Condensed', 'Helvetica Neue', Helvetica, sans-serif;
  --font-serif:   var(--font-heading);
  --font-sans:    'Helvetica Neue', Helvetica, 'Inter', Arial, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;


  --nav-h:       72px;
  --container:   1100px;
  --radius:      4px;
  --radius-lg:   12px;

  --shadow-sm: 0 1px 3px rgba(48, 33, 68, 0.08);
  --shadow-md: 0 4px 16px rgba(48, 33, 68, 0.10);
  --shadow-lg: 0 12px 40px rgba(48, 33, 68, 0.13);

  --transition: 0.22s ease;
}

/* ── Dark Mode Variables (NASA Psyche Brand Theme) ────────── */
[data-theme="dark"] {
  --cream:           var(--psyche-black);        /* #12031d */
  --cream-dark:      #1a0728;
  --cream-border:    #352047;
  
  --charcoal:        #fcfbfa;
  --charcoal-mid:    #d9d3de;
  --charcoal-light:  #a599b5;

  --terracotta:      var(--psyche-gold);        /* #f47c33 */
  --terracotta-light:var(--psyche-mustard);     /* #f9a000 */
  --terracotta-pale: rgba(244, 124, 51, 0.18);

  --gold:            var(--psyche-mustard);     /* #f9a000 */
  --sage:            var(--psyche-coral);       /* #ef5966 */
  --white:           #1e0c2e;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.40);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.50);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.65);
}

[data-theme="dark"] .section-label,
[data-theme="dark"] .page-hero-label,
[data-theme="dark"] .card-cat,
[data-theme="dark"] .modal-cat,
[data-theme="dark"] .resume-sidebar-title {
  color: #e06b8b;
}



/* ── Dark mode nav backdrop ────────────────────────────────── */
[data-theme="dark"] .nav {
  background: rgba(26, 23, 20, 0.92);
}

/* ── Dark mode stat items ──────────────────────────────────── */
[data-theme="dark"] .stat-item { background: var(--white); }
[data-theme="dark"] .stat-item:hover { background: var(--terracotta-pale); }

/* ── Dark mode cards ───────────────────────────────────────── */
[data-theme="dark"] .card  { background: var(--white); }
[data-theme="dark"] .pub-filter-btn,
[data-theme="dark"] .tag,
[data-theme="dark"] .social-link,
[data-theme="dark"] .pub-link { background: var(--white); }

/* ── Dark mode teaching / CV items ────────────────────────── */
[data-theme="dark"] .teaching-item { background: var(--white); }

/* ── Dark mode page-hero gradient ─────────────────────────── */
[data-theme="dark"] .page-hero {
  background: linear-gradient(180deg, var(--cream) 0%, var(--cream-dark) 100%);
}

/* ── Dark mode badge adjustments ──────────────────────────── */
[data-theme="dark"] .badge-sage  { background: rgba(224, 107, 139, 0.18); color: #e06b8b; border-color: rgba(224, 107, 139, 0.3); }
[data-theme="dark"] .badge-slate { background: rgba(184, 114, 173, 0.18); color: #d48fc5; border-color: rgba(184, 114, 173, 0.3); }
[data-theme="dark"] .badge-terra { background: var(--terracotta-pale); }

/* ── Dark mode pub badge ───────────────────────────────────── */
[data-theme="dark"] .pub-badge.journal { background: rgba(224, 107, 139, 0.18); color: #e06b8b; border-color: rgba(224, 107, 139, 0.3); }
[data-theme="dark"] .pub-badge.report  { background: rgba(244, 124, 51, 0.18); color: #f47c33; border-color: rgba(244, 124, 51, 0.3); }


/* ── Dark mode footer ──────────────────────────────────────── */
[data-theme="dark"] .footer { border-top-color: var(--cream-border); }

/* ── Dark Mode Toggle Button ───────────────────────────────── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--cream-border);
  border-radius: 50%;
  background: var(--white);
  color: var(--charcoal-mid);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all var(--transition);
  flex-shrink: 0;
  outline: none;
}

.theme-toggle:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
  background: var(--terracotta-pale);
  transform: rotate(20deg);
}

/* Sun icon shown in dark mode, moon in light */
.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun  { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }

/* Smooth background/color transitions across the whole page */
body,
.nav, .card, .teaching-item, .stat-item, .page-hero,
.alert-banner, .pub-filter-btn, .tag, .social-link,
.pub-link, .pub-badge, .footer, .back-top {
  transition:
    background-color 0.3s ease,
    border-color     0.3s ease,
    color            0.3s ease,
    box-shadow       0.3s ease;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--cream);
  color: var(--charcoal);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a  { color: var(--terracotta); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--terracotta-light); }

/* ── Typography Scale ──────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  line-height: 1.15;
  color: var(--charcoal);
  font-weight: 600;
  letter-spacing: 0.02em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; font-family: var(--font-heading); letter-spacing: 0.02em; }


p { margin-bottom: 1.2rem; color: var(--charcoal-mid); }
p:last-child { margin-bottom: 0; }

/* ── Layout Utilities ──────────────────────────────────────── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }

.divider {
  border: none;
  border-top: 1px solid var(--cream-border);
  margin: 3rem 0;
}

/* ── Navigation ────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--cream-border);
  transition: box-shadow var(--transition);
}

.nav.scrolled { box-shadow: var(--shadow-md); }

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--charcoal);
  letter-spacing: -0.01em;
}

.nav-brand:hover { color: var(--terracotta); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--charcoal-mid);
  letter-spacing: 0.02em;
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--terracotta);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--terracotta);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Hero Section ──────────────────────────────────────────── */
.hero {
  padding-top: calc(var(--nav-h) + 5rem);
  padding-bottom: 5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 5rem;
  align-items: center;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--psyche-magenta);
  margin-bottom: 1rem;
}

[data-theme="dark"] .hero-eyebrow {
  color: #e06b8b;
}

.hero-name {
  font-size: clamp(3rem, 6vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
  color: var(--charcoal);
}

.hero-subtitle {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--psyche-magenta);
  font-family: var(--font-serif);
  margin-bottom: 1.5rem;
}

[data-theme="dark"] .hero-subtitle {
  color: #e06b8b;
}

.hero-tagline {
  font-size: 1rem;
  color: var(--charcoal-mid);
  max-width: 520px;
  line-height: 1.65;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.btn-primary {
  background: var(--terracotta);
  color: var(--white);
  border: 1.5px solid var(--terracotta);
}

.btn-primary:hover {
  background: var(--charcoal);
  border-color: var(--charcoal);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--charcoal);
  border: 1.5px solid var(--charcoal-light);
}

.btn-outline:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
  transform: translateY(-1px);
}

/* ── Hero Photo ────────────────────────────────────────────── */
.hero-photo-wrap {
  position: relative;
}

.hero-photo-frame {
  position: absolute;
  top: 18px; right: -18px;
  width: 100%; height: 100%;
  border: 2px solid var(--psyche-coral);
  border-radius: var(--radius-lg);
  z-index: 0;
}


.hero-photo {
  position: relative;
  z-index: 1;
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  aspect-ratio: 4/5;
}

.hero-photo-placeholder {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--cream-dark) 0%, var(--terracotta-pale) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  color: var(--charcoal-light);
  font-family: var(--font-serif);
  font-size: 1rem;
  gap: 0.5rem;
  font-style: italic;
}

/* ── Stats Row ─────────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--cream-border);
  border: 1px solid var(--cream-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 4rem;
}

.stat-item {
  background: var(--white);
  padding: 2rem;
  text-align: center;
  transition: background var(--transition);
}

.stat-item:hover { background: var(--terracotta-pale); }

.stat-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--terracotta);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--charcoal-light);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0;
}

/* ── Section Headers ───────────────────────────────────────── */
.section-header {
  margin-bottom: 3rem;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--psyche-magenta);
  margin-bottom: 0.6rem;
}


.section-title {
  font-size: clamp(1.6rem, 3vw, 2rem);
  color: var(--charcoal);
  margin-bottom: 0;
}

/* ── Two-Column Info Grid ──────────────────────────────────── */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

/* ── Research Interest Tags ────────────────────────────────── */
.tag-list { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.2rem; }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.9rem;
  border: 1.5px solid var(--cream-border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--charcoal-mid);
  background: var(--white);
  transition: all var(--transition);
  cursor: default;
}

.tag:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
  background: var(--terracotta-pale);
}

/* ── News / Timeline ───────────────────────────────────────── */
.news-list { display: flex; flex-direction: column; gap: 0; }

.news-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--cream-border);
  transition: background var(--transition);
}

.news-item:first-child { border-top: 1px solid var(--cream-border); }

.news-date {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--terracotta);
  letter-spacing: 0.02em;
  padding-top: 0.15rem;
  white-space: nowrap;
}

.news-text {
  font-size: 0.925rem;
  color: var(--charcoal-mid);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ── Social Icons ──────────────────────────────────────────── */
.social-links {
  display: flex;
  gap: 0.85rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border: 1.5px solid var(--cream-border);
  border-radius: 50%;
  color: var(--charcoal-mid);
  font-size: 0.95rem;
  transition: all var(--transition);
  background: var(--white);
}

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

/* ── Research Cards ────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

@media (max-width: 850px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--white);
  border: 1px solid var(--cream-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--terracotta);
}

.card-img-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--cream-dark) 0%, var(--terracotta-pale) 100%);
  border-bottom: 1px solid var(--cream-border);
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card-img {
  transform: scale(1.05);
}

.card-img-gradient {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #302144 0%, #592651 50%, #a53f5b 100%);
  border-bottom: 1px solid var(--cream-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.card-img-gradient::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 85% 20%, rgba(249, 160, 0, 0.28) 0%, transparent 65%);
}


[data-theme="dark"] .card-img-wrap,
[data-theme="dark"] .card-img-gradient {
  background: linear-gradient(135deg, #1c1815 0%, #2e1e14 100%);
  border-bottom-color: #3e3630;
}


.card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-cat {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--psyche-magenta);
  margin-bottom: 0.6rem;
}


.card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--charcoal-light);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1.2rem;
}

.card-footer {
  border-top: 1px solid var(--cream-border);
  padding-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.card-action-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

/* ── Option 1: In-Page Overlay Modal ───────────────────────── */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(15, 13, 11, 0.72);
  backdrop-filter: blur(5px);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 2.2rem;
  position: relative;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--cream-border);
  transform: translateY(16px) scale(0.98);
  transition: transform 0.28s ease;
}

.modal-overlay.active .modal-container {
  transform: translateY(0) scale(1);
}

[data-theme="dark"] .modal-container {
  background: #231f1c;
  border-color: #3e3630;
}

.modal-close {
  position: absolute;
  top: 1.2rem; right: 1.2rem;
  background: var(--cream-dark);
  border: 1px solid var(--cream-border);
  font-size: 1.2rem;
  color: var(--charcoal-mid);
  cursor: pointer;
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  outline: none;
}

.modal-close:hover {
  background: var(--terracotta);
  border-color: var(--terracotta);
  color: var(--white);
}

.modal-cat {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--psyche-magenta);
  margin-bottom: 0.4rem;
  display: block;
}


.modal-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.3;
  margin-bottom: 1.2rem;
  padding-right: 2rem;
}

.modal-body {
  display: flex;
  flex-direction: column;
}

.modal-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--cream-border);
}

.media-placeholder-box {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  border: 2px dashed var(--cream-border);
  background: var(--cream-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  color: var(--charcoal-mid);
  padding: 1rem;
  text-align: center;
  margin-bottom: 1.4rem;
}

[data-theme="dark"] .media-placeholder-box {
  background: #1a1714;
  border-color: #3e3630;
}

.media-placeholder-icon {
  font-size: 2.2rem;
  color: var(--terracotta);
}

.media-placeholder-text {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--charcoal);
}

.media-placeholder-hint {
  font-size: 0.72rem;
  color: var(--charcoal-light);
  font-family: var(--font-mono);
}

.drawer-details-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 0.6rem;
}

.drawer-bullets {
  list-style: none;
  padding: 0;
  margin-bottom: 0.5rem;
  font-size: 0.88rem;
}

.drawer-bullets li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.45rem;
  line-height: 1.55;
  color: var(--charcoal-mid);
}

.drawer-bullets li::before {
  content: "▪";
  position: absolute;
  left: 0;
  color: var(--terracotta);
}



/* ── Publications ──────────────────────────────────────────── */
.pub-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 2rem;
}

.filter-bar, .subnav-bar {
  display: flex;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--cream-border);
  background: var(--white);
}

.filter-bar .pub-filters,
.subnav-bar .pub-filters {
  margin-bottom: 0;
}

.pub-filter-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.85rem;
  border: 1.5px solid var(--cream-border);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--charcoal-mid);
  background: var(--white);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
  line-height: 1.2;
  box-sizing: border-box;
  vertical-align: middle;
}

.pub-filter-btn:hover,
.pub-filter-btn.active {
  background: var(--terracotta);
  border-color: var(--terracotta);
  color: var(--white);
}



.pub-year-group { margin-bottom: 3rem; }

.pub-year-label {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--charcoal);
  border-bottom: 2px solid var(--terracotta);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.pub-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--cream-border);
  transition: background var(--transition);
}

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

.pub-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  border-radius: var(--radius);
  background: var(--terracotta-pale);
  border: 1px solid rgba(196, 98, 45, 0.2);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--terracotta);
  text-align: center;
  line-height: 1.2;
  flex-shrink: 0;
}

.pub-badge.journal { background: #eef6f0; border-color: rgba(92, 107, 94, 0.2); color: var(--sage); }
.pub-badge.report  { background: #f0f4f8; border-color: rgba(100, 116, 139, 0.2); color: #475569; }

.pub-content { flex: 1; }

.pub-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 0.3rem;
  line-height: 1.45;
}

.pub-authors {
  font-size: 0.85rem;
  color: var(--charcoal-light);
  margin-bottom: 0.3rem;
}

.pub-authors strong { color: var(--charcoal-mid); }

.pub-venue {
  font-size: 0.82rem;
  color: var(--charcoal-light);
  font-style: italic;
  margin-bottom: 0.6rem;
}

.pub-links {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.pub-link {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.65rem;
  border: 1px solid var(--cream-border);
  border-radius: 3px;
  color: var(--charcoal-mid);
  background: var(--white);
  transition: all var(--transition);
}

.pub-link:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
  background: var(--terracotta-pale);
}

/* ── Teaching Cards ────────────────────────────────────────── */
.teaching-item {
  border: 1px solid var(--cream-border);
  border-radius: var(--radius-lg);
  background: var(--white);
  padding: 2rem;
  margin-bottom: 1.5rem;
  transition: all var(--transition);
}

.teaching-item:hover {
  border-color: var(--terracotta);
  box-shadow: var(--shadow-md);
}

.teaching-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.teaching-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
  flex-shrink: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-terra {
  background: var(--terracotta-pale);
  color: var(--terracotta);
  border: 1px solid rgba(244, 124, 51, 0.25);
}

.badge-sage {
  background: rgba(165, 63, 91, 0.10);
  color: var(--psyche-magenta);
  border: 1px solid rgba(165, 63, 91, 0.25);
}

.badge-slate {
  background: rgba(89, 38, 81, 0.10);
  color: #7a356f;
  border: 1px solid rgba(89, 38, 81, 0.25);
}


.teaching-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 0.25rem;
}

.teaching-subtitle {
  font-size: 0.875rem;
  color: var(--charcoal-light);
  font-style: italic;
  margin-bottom: 0;
}

.teaching-items {
  margin-top: 1rem;
  padding-left: 1.2rem;
  list-style: none;
}

.teaching-items li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.9rem;
  color: var(--charcoal-mid);
  margin-bottom: 0.45rem;
  line-height: 1.6;
}

.teaching-items li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--terracotta);
  font-weight: 600;
}

/* ── CV / Timeline ─────────────────────────────────────────── */
.cv-section { margin-bottom: 3.5rem; }

.cv-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--cream-border);
}

.cv-timeline { display: flex; flex-direction: column; gap: 0; }

.cv-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--cream-border);
}

.cv-item:first-child { padding-top: 0; }
.cv-item:last-child { border-bottom: none; }

.cv-year {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--terracotta);
  padding-top: 0.2rem;
  white-space: nowrap;
}

.cv-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--charcoal);
  margin-bottom: 0.15rem;
}

.cv-institution {
  font-size: 0.875rem;
  color: var(--charcoal-light);
  font-style: italic;
  margin-bottom: 0.5rem;
}

.cv-details {
  font-size: 0.875rem;
  color: var(--charcoal-mid);
  list-style: none;
  padding: 0;
}

.cv-details li {
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.2rem;
}

.cv-details li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--terracotta);
}

/* ── Alert / Banner ────────────────────────────────────────── */
.alert-banner {
  background: rgba(239, 89, 102, 0.08);
  border: 1px solid rgba(239, 89, 102, 0.28);
  border-left: 3px solid var(--psyche-coral);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  font-size: 0.9rem;
  color: var(--charcoal-mid);
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-banner-icon { font-size: 1rem; color: var(--psyche-coral); flex-shrink: 0; }

/* ── Featured Labels & Badges ──────────────────────────────── */
.pub-link.featured,
.badge-featured {
  cursor: default !important;
  color: #ef5966 !important;
  border-color: rgba(239, 89, 102, 0.4) !important;
  background: rgba(239, 89, 102, 0.12) !important;
  font-weight: 600 !important;
}

[data-theme="dark"] .pub-link.featured,
[data-theme="dark"] .badge-featured {
  color: #ef5966 !important;
  border-color: rgba(239, 89, 102, 0.45) !important;
  background: rgba(239, 89, 102, 0.2) !important;
}


/* ── Footer ────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--cream-border);
  padding: 3rem 0;
  margin-top: 4rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--charcoal);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--charcoal-light);
}

.footer-links a:hover { color: var(--terracotta); }

.footer-copy {
  font-size: 0.8rem;
  color: var(--charcoal-light);
  margin-bottom: 0;
}

/* ── Page Hero (inner pages) ───────────────────────────────── */
.page-hero {
  padding-top: calc(var(--nav-h) + 4rem);
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--cream-border);
  background: linear-gradient(180deg, var(--cream) 0%, var(--white) 100%);
}

.page-hero-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--psyche-magenta);
  margin-bottom: 0.6rem;
}


.page-hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--charcoal);
  margin-bottom: 0.6rem;
}

.page-hero-desc {
  max-width: 620px;
  color: var(--charcoal-light);
  font-size: 1rem;
  margin-bottom: 0;
}

/* ── Utility ───────────────────────────────────────────────── */
.text-terra   { color: var(--terracotta); }
.text-muted   { color: var(--charcoal-light); }
.text-serif   { font-family: var(--font-serif); }
.font-italic  { font-style: italic; }
.mt-0         { margin-top: 0; }
.mb-0         { margin-bottom: 0; }

/* ── Featured Research Card ────────────────────────────────── */
.featured-research {
  margin-top: 4rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--cream-border);
  border-left: 4px solid var(--terracotta);
  background: var(--white);
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
}

.featured-research:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.featured-research-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto 1fr;
  gap: 1rem 3rem;
  padding: 2rem 2.5rem;
  align-items: start;
}

.featured-label {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.featured-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.8rem;
  background: rgba(239, 89, 102, 0.12);
  border: 1px solid rgba(239, 89, 102, 0.35);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ef5966;
}


.featured-meta {
  font-size: 0.8rem;
  color: var(--charcoal-light);
  font-style: italic;
}

.featured-body {
  grid-column: 1;
  grid-row: 2;
}

.featured-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.featured-desc {
  font-size: 0.9rem;
  color: var(--charcoal-mid);
  line-height: 1.7;
  max-width: 620px;
  margin-bottom: 1rem;
}

.featured-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0;
}

.featured-actions {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  align-items: stretch;
  justify-content: flex-start;
  min-width: 160px;
}

[data-theme="dark"] .featured-research {
  background: var(--white);
}

@media (max-width: 700px) {
  .featured-research-inner {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 1.2rem;
    padding: 1.5rem;
  }
  .featured-body  { grid-column: 1; grid-row: auto; }
  .featured-actions {
    grid-column: 1;
    grid-row: auto;
    flex-direction: row;
    flex-wrap: wrap;
    min-width: unset;
  }
}

/* ── Two-Column Resume Layout (Sidebar + Main) ─────────────── */
.resume-card {
  display: grid;
  grid-template-columns: 310px 1fr;
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--cream-border);
  margin-top: 1rem;
}

/* Sidebar (Left) */
.resume-sidebar {
  background: #1c1917;
  color: #f0ebe4;
  padding: 3rem 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}

[data-theme="dark"] .resume-sidebar {
  background: #14110f;
  border-right: 1px solid #2e2823;
}

.resume-avatar-wrap {
  text-align: center;
}

.resume-avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--terracotta);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  margin: 0 auto 1.2rem;
}

.resume-sidebar-name {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.resume-sidebar-title {
  font-size: 0.85rem;
  color: var(--terracotta-light);
  font-weight: 500;
  line-height: 1.4;
}

.resume-sidebar-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--terracotta-light);
  margin-bottom: 0.85rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.resume-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.82rem;
}

.resume-contact-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: #d6cfc7;
  word-break: break-word;
}

.resume-contact-item i {
  color: var(--terracotta-light);
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.resume-contact-item a {
  color: #d6cfc7;
}

.resume-contact-item a:hover {
  color: var(--terracotta-light);
}

.resume-skill-list, .resume-list-simple {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.82rem;
  color: #d6cfc7;
}

.resume-skill-list li, .resume-list-simple li {
  position: relative;
  padding-left: 1rem;
  line-height: 1.45;
}

.resume-skill-list li::before, .resume-list-simple li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--terracotta-light);
}

.resume-lang-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: #d6cfc7;
  padding: 0.2rem 0;
}

.resume-lang-item span.level {
  color: #9e9389;
  font-size: 0.78rem;
  font-style: italic;
}

/* Main Content (Right) */
.resume-main {
  padding: 3rem 2.8rem;
  background: var(--white);
  color: var(--charcoal-mid);
}

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

.resume-section:last-child {
  margin-bottom: 0;
}

.resume-heading {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--charcoal);
  margin-bottom: 1.2rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--cream-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.resume-heading::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  background: var(--terracotta);
  border-radius: 2px;
}

.resume-profile-text {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--charcoal-mid);
}

.resume-entry {
  margin-bottom: 1.4rem;
}

.resume-entry:last-child {
  margin-bottom: 0;
}

.resume-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.25rem;
}

.resume-entry-title {
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--charcoal);
  line-height: 1.3;
}

.resume-entry-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--terracotta);
  white-space: nowrap;
  font-family: var(--font-sans);
}

.resume-entry-sub {
  font-size: 0.85rem;
  color: var(--charcoal-light);
  font-style: italic;
  margin-bottom: 0.45rem;
}

.resume-bullets {
  list-style: none;
  padding-left: 0;
  font-size: 0.88rem;
}

.resume-bullets li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.35rem;
  line-height: 1.55;
  color: var(--charcoal-mid);
}

.resume-bullets li::before {
  content: "▪";
  position: absolute;
  left: 0;
  color: var(--terracotta);
  font-size: 0.75rem;
}

/* Responsive Resume */
@media (max-width: 850px) {
  .resume-card {
    grid-template-columns: 1fr;
  }
  .resume-sidebar {
    padding: 2.5rem 1.8rem;
  }
  .resume-main {
    padding: 2.2rem 1.6rem;
  }
  .resume-entry-header {
    flex-direction: column;
    gap: 0.15rem;
  }
}

/* ── News tag pills (for dynamic news rendering) ───────────── */
.news-body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.news-tag-pill {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.15rem 0.55rem;
  border-radius: 100px;
  width: fit-content;
}

/* ── Back-to-top button ────────────────────────────────────── */



.back-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 42px; height: 42px;
  background: var(--charcoal);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
  z-index: 99;
}

.back-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-top:hover {
  background: var(--terracotta);
  transform: translateY(-3px);
}

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up { animation: fadeUp 0.6s ease both; }
.fade-up-1 { animation-delay: 0.1s; }
.fade-up-2 { animation-delay: 0.2s; }
.fade-up-3 { animation-delay: 0.3s; }
.fade-up-4 { animation-delay: 0.4s; }
.fade-up-5 { animation-delay: 0.5s; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-grid    { grid-template-columns: 1fr; gap: 3rem; }
  .hero-photo-wrap { order: -1; max-width: 320px; margin: 0 auto; }
  .hero-photo-frame { top: 12px; right: -12px; }
  .info-grid    { grid-template-columns: 1fr; gap: 3rem; }
  .stats-row    { grid-template-columns: 1fr 1fr; }
  .pub-item     { grid-template-columns: 1fr; gap: 0.75rem; }
  .pub-badge    { width: auto; height: auto; padding: 0.2rem 0.6rem; }
  .cv-item      { grid-template-columns: 1fr; gap: 0.3rem; }
  .teaching-header { flex-direction: column; }
}

@media (max-width: 640px) {
  .container    { padding: 0 1.25rem; }
  .section      { padding: 3.5rem 0; }
  .hero         { padding-top: calc(var(--nav-h) + 3rem); padding-bottom: 3rem; }
  .stats-row    { grid-template-columns: 1fr; }
  .nav-links    { display: none; }
  .nav-toggle   { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: var(--cream);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--cream-border);
    gap: 1.25rem;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open a::after { display: none; }
  .cards-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}