/* ============================================================
   FLORENT KOUDOHODE — Personal Academic Site
   Global stylesheet
   ------------------------------------------------------------
   Organisation :
     1. CSS Variables (themes)
     2. Base & reset
     3. Typography
     4. Navigation
     5. Hero
     6. Sections (themes, news, CTA)
     7. Page-specific (about, research, publications, teaching, contact)
     8. Components (buttons, badges, cards, forms)
     9. Footer
     10. Utilities & animations
     11. Responsive
   ============================================================ */


/* ============================================================
   1. 🎨 THEME VARIABLES
   → Modifier ici pour changer l'apparence globale du site.
   ============================================================ */
:root {
  /* Palette — light theme */
  --color-primary:        #0B1F4A;    /* Deep navy — headings, accents */
  --color-primary-soft:   #1A3573;
  --color-gold:           #C39B32;    /* Gold — highlights, ERC badge, brand */
  --color-gold-soft:      #DEB867;
  --color-blue:           #1A56DB;    /* Electric blue — links, CTAs */
  --color-blue-soft:      #3B82F6;

  /* Surfaces & text */
  --bg-primary:           #FBFAF6;    /* Cream off-white — main background */
  --bg-secondary:         #F2EFE6;    /* Warmer cream — cards, sections */
  --bg-tertiary:          #ECE7D8;    /* Subtle dividers */
  --bg-nav:               rgba(251, 250, 246, 0.86);
  --bg-card:              #FFFFFF;

  --text-primary:         #14171F;
  --text-body:            #2A2E39;
  --text-muted:           #6B7280;
  --text-soft:            #8B92A0;

  --border:               #E3DFD2;
  --border-strong:        #C7C0A8;

  /* Shadows */
  --shadow-sm:            0 1px 2px rgba(11, 31, 74, 0.05);
  --shadow-md:            0 4px 14px rgba(11, 31, 74, 0.07);
  --shadow-lg:            0 12px 36px rgba(11, 31, 74, 0.10);
  --shadow-glow-gold:     0 0 0 1px rgba(195, 155, 50, 0.18);

  /* Typography */
  --font-display:         'Playfair Display', 'Times New Roman', Georgia, serif;
  --font-body:            'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:            'JetBrains Mono', 'SFMono-Regular', Menlo, monospace;

  /* Sizing */
  --max-width:            1180px;
  --max-width-narrow:     880px;
  --max-width-reading:    720px;
  --nav-height:           72px;
  --radius-sm:            6px;
  --radius:               10px;
  --radius-lg:            16px;

  /* Motion */
  --ease:                 cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out:             cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast:               150ms;
  --t-base:               300ms;
  --t-slow:               600ms;
}

/* ============================================================
   🌙 DARK THEME — applied via data-theme="dark" on <html>
   ============================================================ */
[data-theme="dark"] {
  --color-primary:        #C7DAF0;    /* Soft sky blue — headings on dark */
  --color-primary-soft:   #8FB3DC;
  --color-gold:           #D4A843;    /* Warmer gold for dark backgrounds */
  --color-gold-soft:      #B5862A;
  --color-blue:           #6BA1FA;
  --color-blue-soft:      #88B5FB;

  --bg-primary:           #0D1018;    /* Almost-black with a navy hint */
  --bg-secondary:         #161B27;
  --bg-tertiary:          #1F2533;
  --bg-nav:               rgba(13, 16, 24, 0.86);
  --bg-card:              #161B27;

  --text-primary:         #F5F2E8;    /* Warm white */
  --text-body:            #D8D4C5;
  --text-muted:           #94A1B5;
  --text-soft:            #6B7689;

  --border:               #262C3B;
  --border-strong:        #3A4356;

  --shadow-sm:            0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md:            0 4px 14px rgba(0, 0, 0, 0.45);
  --shadow-lg:            0 12px 36px rgba(0, 0, 0, 0.55);
  --shadow-glow-gold:     0 0 0 1px rgba(212, 168, 67, 0.22);
}
/* ── Keywords card ─────────────────────────────────────── */
.hero-card-keywords-label {
  color: #555 !important;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.hero-card-keywords-list span {
  color: #0B1F4A !important;       /* bleu marine foncé, bien visible */
  background-color: #eef1f8 !important;
  border: 1px solid #b8c4df !important;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 0.77rem;
  font-weight: 500;
  display: inline-block;
  margin: 3px 3px;
}

[data-theme="dark"] .hero-card-keywords-list span {
  color: #f0f4ff !important;
  background-color: #1e3060 !important;
  border-color: #3a5499 !important;
}

[data-theme="dark"] .hero-card-keywords-label {
  color: #aab4cc !important;
}
/* ============================================================
   2. BASE & RESET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-body);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--t-base) var(--ease), color var(--t-base) var(--ease);
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}
a:hover { color: var(--color-primary); }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

::selection {
  background: var(--color-gold);
  color: #14171F;
}


/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0 0 0.4em;
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4.4rem); font-weight: 700; letter-spacing: -0.025em; }
h2 { font-size: clamp(1.9rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; }

p { margin: 0 0 1em; }

em { font-style: italic; color: var(--color-gold); font-family: var(--font-display); }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-gold);
  margin: 0 0 0.8em;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.section-eyebrow::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--color-gold);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.5vw, 2.6rem);
  margin: 0 0 0.5em;
  color: var(--text-primary);
}
.section-lead {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 56ch;
  margin: 0 auto 0;
  line-height: 1.65;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.section-head {
  text-align: center;
  margin-bottom: 4rem;
}
.section-head .section-eyebrow { justify-content: center; }


/* ============================================================
   4. NAVIGATION
   ============================================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--bg-nav);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.nav-inner {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  font-weight: 500;
}
.nav-brand:hover { color: var(--color-primary); }

.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-gold) 60%, transparent);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.nav-brand:hover .brand-mark {
  box-shadow: 0 0 0 2px var(--color-gold);
  transform: scale(1.05);
}
.brand-dot { color: var(--color-gold); }

.brand-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.02rem;
  letter-spacing: -0.005em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-links > a {
  position: relative;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-body);
  letter-spacing: 0.005em;
  padding: 6px 0;
  transition: color var(--t-fast) var(--ease);
}
.nav-links > a::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-base) var(--ease-out);
}
.nav-links > a:hover { color: var(--color-primary); }
.nav-links > a:hover::after { transform: scaleX(0.4); }
.nav-links > a.active { color: var(--color-primary); }
.nav-links > a.active::after { transform: scaleX(1); }

.nav-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: 8px;
  padding-left: 14px;
  border-left: 1px solid var(--border);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.lang-btn {
  padding: 3px 4px;
  color: var(--text-muted);
  transition: color var(--t-fast) var(--ease);
}
.lang-btn:hover { color: var(--color-primary); }
.lang-btn.active { color: var(--color-gold); font-weight: 600; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: var(--text-muted);
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.theme-toggle:hover { color: var(--color-gold); background: var(--bg-secondary); }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 28px;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 1.6px;
  background: var(--text-primary);
  transition: transform var(--t-base) var(--ease), opacity var(--t-fast) var(--ease);
}
.nav-burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.6px) rotate(45deg);
}
.nav-burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.6px) rotate(-45deg);
}


/* ============================================================
   5. HERO
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3.5rem, 8vw, 7rem) 0 clamp(4rem, 7vw, 6.5rem);
  border-bottom: 1px solid var(--border);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.85;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-gold);
  margin: 0 0 1.6rem;
}
.eyebrow-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 4px rgba(195, 155, 50, 0.18);
  animation: pulse 2.6s ease-in-out infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.028em;
  margin: 0 0 1.6rem;
  color: var(--text-primary);
}
.hero-title-line-1,
.hero-title-line-2,
.hero-title-line-3 { display: block; }
.hero-title-line-2 em {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  color: var(--color-gold);
}
.hero-title-line-3 {
  font-size: 0.62em;
  font-weight: 400;
  font-style: italic;
  color: var(--text-muted);
  margin-top: 0.25em;
}

.hero-bio {
  font-size: 1.07rem;
  line-height: 1.78;
  color: var(--text-body);
  max-width: 56ch;
  margin: 0 0 2rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0 0 2.2rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-body);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 50px;
  transition: all var(--t-fast) var(--ease);
}
.badge-erc {
  color: var(--color-gold);
  background: transparent;
  border-color: var(--color-gold);
  box-shadow: var(--shadow-glow-gold);
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.hero-photo-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 220px;
  margin: 0 auto;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-secondary);
  border: 3px solid var(--bg-card);
  box-shadow: 0 0 0 2px var(--color-gold), 0 12px 28px rgba(11, 31, 74, 0.20);
}
.hero-photo {
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero-photo-fallback {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 3.5rem;
  color: var(--color-primary);
  background: var(--bg-secondary);
}

.hero-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.92rem;
}
.hero-card-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--border);
}
.hero-card-row:last-child { border-bottom: none; }
.hero-card-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.hero-card-value {
  font-weight: 500;
  color: var(--text-primary);
  text-align: right;
  font-size: 0.92rem;
}

.hero-formula {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 14px 8px;
}
.hero-formula-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.hero-formula-math {
  font-size: 0.86rem;
  color: var(--text-primary);
  text-align: center;
}
.hero-formula-math .katex { font-size: 1em; }

.hero-scroll {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 1.5px solid var(--text-muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  opacity: 0.6;
  transition: opacity var(--t-fast) var(--ease);
}
.hero-scroll:hover { opacity: 1; }
.hero-scroll span {
  width: 2px;
  height: 8px;
  background: var(--text-muted);
  border-radius: 1px;
  animation: scroll-dot 1.8s ease-in-out infinite;
}


/* ============================================================
   6. SECTIONS — Themes, News, CTA strip
   ============================================================ */

/* THEMES (3 research cards) */
.themes {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.theme-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px 32px;
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
  overflow: hidden;
}
.theme-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  transform: scaleX(0);
  transition: transform var(--t-base) var(--ease-out);
}
.theme-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gold-soft);
}
.theme-card:hover::before { transform: scaleX(1); }

.theme-number {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-gold);
  margin-bottom: 1.5rem;
}

.theme-icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-secondary);
  color: var(--color-primary);
  border-radius: 12px;
  margin-bottom: 1.4rem;
}

.theme-title {
  font-size: 1.32rem;
  margin: 0 0 0.7rem;
}

.theme-desc {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 1.4rem;
}

.theme-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  transition: gap var(--t-fast) var(--ease);
}
.theme-link:hover {
  gap: 12px;
  color: var(--color-primary);
}

/* NEWS */
.news {
  padding: clamp(4rem, 7vw, 6rem) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.news-inner { max-width: var(--max-width-narrow); }
.news-head {
  text-align: left;
  margin-bottom: 2.5rem;
}
.news-head .section-eyebrow { justify-content: flex-start; }

.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

.news-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.news-item:last-child { border-bottom: none; }

.news-date {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  white-space: nowrap;
}

.news-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-body);
  margin: 0;
}
.news-text a {
  color: var(--text-primary);
  font-weight: 500;
  border-bottom: 1px solid var(--color-gold-soft);
  padding-bottom: 1px;
}
.news-text a:hover {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

/* CTA STRIP */
.cta-strip {
  padding: clamp(3.5rem, 6vw, 5rem) 0;
}
.cta-strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  padding-top: clamp(2rem, 4vw, 3rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-strip-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 500;
  font-style: italic;
  color: var(--text-primary);
  margin: 0;
  max-width: 32ch;
  line-height: 1.3;
}
.cta-strip-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}


/* ============================================================
   7. COMPONENTS — Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  border-radius: 50px;
  transition: all var(--t-fast) var(--ease);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #FBFAF6;
  border: 1px solid var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-gold);
  color: #14171F;
  border-color: var(--color-gold);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
[data-theme="dark"] .btn-primary {
  background: var(--color-gold);
  color: #14171F;
  border-color: var(--color-gold);
}
[data-theme="dark"] .btn-primary:hover {
  background: transparent;
  color: var(--color-gold);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.82rem;
}

.btn-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}


/* ============================================================
   8. FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 0 1.5rem;
  color: var(--text-body);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 2.5rem;
}

.footer-col h4.footer-h {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin: 0 0 1.2rem;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.footer-col ul a {
  color: var(--text-body);
  font-size: 0.92rem;
  transition: color var(--t-fast) var(--ease);
}
.footer-col ul a:hover { color: var(--color-gold); }

.footer-brand-mark {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  overflow: hidden;
  display: block;
  margin-bottom: 0.9rem;
  background: var(--color-primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-gold) 60%, transparent);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.footer-brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.footer-brand-mark:hover {
  box-shadow: 0 0 0 2px var(--color-gold);
  transform: scale(1.05);
}
.footer-tagline {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 32ch;
}

.footer-address {
  font-style: normal;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-body);
}
.footer-address a {
  color: var(--color-blue);
  border-bottom: 1px solid transparent;
  transition: all var(--t-fast) var(--ease);
}
.footer-address a:hover {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 3rem auto 0;
  padding: 1.5rem 28px 0;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.84rem;
  color: var(--text-muted);
}
.footer-bottom p { margin: 0; }


/* ============================================================
   9. UTILITIES & ANIMATIONS
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(195, 155, 50, 0.18); }
  50%      { box-shadow: 0 0 0 8px rgba(195, 155, 50, 0.08); }
}

@keyframes scroll-dot {
  0%, 20%  { transform: translateY(0); opacity: 1; }
  100%     { transform: translateY(14px); opacity: 0; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

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


/* ============================================================
   10. PAGE-SPECIFIC STYLES
   ============================================================ */

/* ---------------------------------------------
   PAGE BANNER (about / research / publications / etc.)
   --------------------------------------------- */
.page-banner {
  padding: clamp(4rem, 8vw, 6rem) 0 clamp(3rem, 5vw, 4rem);
  border-bottom: 1px solid var(--border);
}
.page-banner-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
  text-align: center;
}
.page-banner .section-eyebrow { justify-content: center; }
.page-banner h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  margin: 0 0 1rem;
}
.page-banner-lead {
  max-width: 56ch;
  margin: 0 auto;
  font-size: 1.08rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ---------------------------------------------
   ABOUT PAGE — Who I Am / Short Bio / CV
   --------------------------------------------- */
.about-section {
  padding: clamp(3.5rem, 6vw, 5rem) 0;
}
.about-inner {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 28px;
}

/* Block 1 — Who I Am */
.who-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3.5rem;
  align-items: start;
}
.who-photo {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-secondary);
  border: 3px solid var(--bg-card);
  box-shadow: 0 0 0 2px var(--color-gold), 0 12px 28px rgba(11, 31, 74, 0.18);
}
.who-photo img { width: 100%; height: 100%; object-fit: cover; }
.who-photo-fallback {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 4rem;
  color: var(--color-primary);
  background: var(--bg-secondary);
}
.who-text { padding-top: 0.5rem; }
.who-text h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 0.8em; }
.who-text p {
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--text-body);
  margin-bottom: 1.2em;
}

/* Block 2 — Short Bio (extractable) */
.bio-block {
  background: var(--bg-secondary);
  border-left: 4px solid var(--color-gold);
  border-radius: var(--radius);
  padding: 2.2rem 2.4rem;
  margin: 4rem 0;
  position: relative;
}
.bio-block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.4rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.bio-block-head h2 {
  font-size: 1.6rem;
  margin: 0;
}
.bio-block-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.bio-block-text {
  font-size: 1.06rem;
  line-height: 1.8;
  color: var(--text-body);
  margin-bottom: 1.5rem;
}
.bio-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--t-fast) var(--ease);
}
.copy-btn:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}
.copy-btn.copied {
  background: var(--color-gold);
  color: #14171F;
  border-color: var(--color-gold);
}

/* Block 3 — CV */
.cv-block { padding-top: 1rem; }
.cv-block-title {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  text-align: center;
  margin-bottom: 0.6em;
}
.cv-block-lead {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.02rem;
  max-width: 50ch;
  margin: 0 auto 3rem;
}

/* CV Timeline */
.cv-timeline {
  position: relative;
  margin: 3rem 0 4rem;
  padding: 2rem 0;
}
.cv-timeline::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-strong);
}
.cv-timeline-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  position: relative;
  z-index: 1;
}
.timeline-step { text-align: center; }
.timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--color-gold);
  margin: 0 auto 1rem;
  position: relative;
}
.timeline-step:nth-child(odd) .timeline-dot::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: var(--color-gold);
  opacity: 0.18;
  z-index: -1;
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.06em;
  margin-bottom: 0.3rem;
}
.timeline-label {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.35;
}
.timeline-loc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* CV Section blocks */
.cv-section {
  margin: 3rem 0;
  padding-top: 2.4rem;
  border-top: 1px solid var(--border);
}
.cv-section-title {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-gold);
  margin: 0 0 1.6rem;
  font-weight: 600;
}
.cv-entry {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 2rem;
  padding: 1.2rem 0;
  border-bottom: 1px dashed var(--border);
}
.cv-entry:last-child { border-bottom: none; }
.cv-entry-date {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding-top: 4px;
}
.cv-entry-title {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.2rem;
}
.cv-entry-org {
  font-size: 0.96rem;
  color: var(--text-body);
  margin: 0 0 0.4rem;
}
.cv-entry-org strong { color: var(--color-gold); font-weight: 600; }
.cv-entry-detail {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.65;
}

.cv-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.cv-list-grid li {
  font-size: 0.92rem;
  color: var(--text-body);
  padding: 8px 14px;
  background: var(--bg-secondary);
  border-radius: 6px;
  border-left: 2px solid var(--color-gold);
}

.cv-download {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin: 3.5rem 0 1rem;
  flex-wrap: wrap;
}


/* ---------------------------------------------
   RESEARCH PAGE
   --------------------------------------------- */
.research-body {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: clamp(3.5rem, 6vw, 5rem) 28px;
}
.research-statement {
  font-size: 1.1rem;
  line-height: 1.85;
  color: var(--text-body);
}
.research-statement p { margin-bottom: 1.4em; }
.research-statement .lead-first-letter::first-letter {
  font-family: var(--font-display);
  font-size: 3.4em;
  float: left;
  line-height: 0.85;
  padding: 0.08em 0.08em 0 0;
  color: var(--color-gold);
  font-weight: 600;
}

.research-themes-detail {
  margin: 5rem 0;
}
.research-theme-detail {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}
.research-theme-detail:last-child { border-bottom: 1px solid var(--border); }
.research-theme-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold);
  line-height: 1;
}
.research-theme-detail h3 {
  font-size: 1.6rem;
  margin: 0 0 0.6em;
}
.research-theme-detail p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-body);
  margin-bottom: 0.8em;
}
.research-theme-detail .pub-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 1rem;
}
.research-theme-detail .pub-tag-list a {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 30px;
  color: var(--text-body);
  transition: all var(--t-fast) var(--ease);
}
.research-theme-detail .pub-tag-list a:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.research-erc {
  margin: 4rem 0 2rem;
  padding: 2.5rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  align-items: center;
}
.research-erc-logo {
  width: 80px; height: 80px;
  background: var(--color-gold);
  color: #14171F;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  flex-shrink: 0;
}
.research-erc h3 { margin: 0 0 0.4em; font-size: 1.3rem; }
.research-erc p { margin: 0; font-size: 0.95rem; color: var(--text-muted); line-height: 1.6; }
.research-erc a {
  color: var(--color-gold);
  border-bottom: 1px solid currentColor;
}


/* ---------------------------------------------
   PUBLICATIONS PAGE
   --------------------------------------------- */
.pub-body {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: clamp(3rem, 5vw, 4rem) 28px;
}

.pub-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 3rem;
  padding: 4px;
  background: var(--bg-secondary);
  border-radius: 50px;
  width: fit-content;
  border: 1px solid var(--border);
}
.pub-filter {
  padding: 8px 18px;
  font-family: var(--font-body);
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 50px;
  transition: all var(--t-fast) var(--ease);
}
.pub-filter:hover { color: var(--text-primary); }
.pub-filter.active {
  background: var(--color-primary);
  color: #FBFAF6;
}
[data-theme="dark"] .pub-filter.active {
  background: var(--color-gold);
  color: #14171F;
}

.pub-group { margin-bottom: 3.5rem; }
.pub-group-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 1.4rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-strong);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.pub-group-count {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  color: var(--text-muted);
}

.pub-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.5rem;
  padding: 1.6rem 1.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.pub-card:hover {
  border-color: var(--color-gold-soft);
  box-shadow: var(--shadow-md);
}

.pub-year {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-gold);
  text-align: center;
  padding-top: 4px;
  position: relative;
}
.pub-year::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 1px;
  background: var(--border-strong);
  margin-top: 8px;
}

.pub-body-content { min-width: 0; }

.pub-title {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.4rem;
  line-height: 1.35;
}

.pub-authors {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin: 0 0 0.35rem;
}
.pub-authors .author-self {
  color: var(--color-gold);
  font-weight: 600;
}

.pub-venue {
  font-size: 0.92rem;
  font-style: italic;
  color: var(--text-body);
  margin: 0 0 1rem;
}
.pub-venue strong { font-style: normal; font-weight: 600; color: var(--text-primary); }

.pub-badges {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.pub-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 30px;
  border: 1px solid;
}
.pub-badge-type-journal     { color: var(--color-blue); border-color: currentColor; background: rgba(26, 86, 219, 0.06); }
.pub-badge-type-conference  { color: var(--color-primary); border-color: currentColor; background: rgba(11, 31, 74, 0.06); }
[data-theme="dark"] .pub-badge-type-conference { background: rgba(199, 218, 240, 0.08); }
.pub-badge-type-preprint    { color: var(--text-muted); border-color: currentColor; background: transparent; }
.pub-badge-type-thesis      { color: var(--color-gold); border-color: currentColor; background: rgba(195, 155, 50, 0.08); }
.pub-badge-status-published { background: var(--color-primary); color: #FBFAF6; border-color: var(--color-primary); }
[data-theme="dark"] .pub-badge-status-published { background: var(--color-gold); color: #14171F; border-color: var(--color-gold); }
.pub-badge-status-review    { background: transparent; color: var(--color-gold); border-color: var(--color-gold); }
.pub-badge-status-preprint  { background: transparent; color: var(--text-muted); border-color: var(--border-strong); }
.pub-badge-status-thesis    { background: var(--color-gold); color: #14171F; border-color: var(--color-gold); }
.pub-badge-confirm {
  background: transparent;
  border-style: dashed;
  color: var(--text-muted);
  border-color: var(--border-strong);
  font-style: italic;
}

.pub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-body);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 30px;
  transition: all var(--t-fast) var(--ease);
}
.pub-link:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  transform: translateY(-1px);
}
.pub-link svg { width: 11px; height: 11px; }

.pub-abstract-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: transparent;
  border: 1px solid var(--color-gold);
  border-radius: 30px;
  transition: all var(--t-fast) var(--ease);
  cursor: pointer;
}
.pub-abstract-toggle:hover {
  background: var(--color-gold);
  color: #14171F;
}
.pub-abstract-toggle .chevron {
  transition: transform var(--t-fast) var(--ease);
}
.pub-abstract-toggle.open .chevron {
  transform: rotate(180deg);
}

.pub-abstract {
  max-height: 0;
  overflow: hidden;
  transition: max-height 400ms var(--ease), margin-top var(--t-base) var(--ease);
}
.pub-abstract.open {
  max-height: 800px;
  margin-top: 1rem;
}
.pub-abstract-text {
  padding: 1rem 1.2rem;
  background: var(--bg-secondary);
  border-left: 3px solid var(--color-gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--text-body);
  margin: 0;
}


/* ---------------------------------------------
   TEACHING PAGE
   --------------------------------------------- */
.teaching-body {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: clamp(3rem, 5vw, 4rem) 28px;
}

.teach-block {
  margin-bottom: 4rem;
}
.teach-block h2 {
  font-size: 1.7rem;
  margin: 0 0 1.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-strong);
}

.teach-item {
  padding: 1.4rem 0;
  border-bottom: 1px dashed var(--border);
  display: grid;
  grid-template-columns: 130px 1fr auto;
  gap: 1.5rem;
  align-items: center;
}
.teach-item:last-child { border-bottom: none; }
.teach-year {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.teach-title { font-weight: 600; color: var(--text-primary); margin: 0 0 0.2rem; }
.teach-meta { font-size: 0.88rem; color: var(--text-muted); margin: 0; }

.teach-materials {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.teach-mat-card {
  padding: 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--t-fast) var(--ease);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.teach-mat-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.teach-mat-type {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-gold);
}
.teach-mat-title { font-weight: 600; color: var(--text-primary); font-size: 0.96rem; }


/* ---------------------------------------------
   CONTACT PAGE
   --------------------------------------------- */
.contact-body {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: clamp(3rem, 5vw, 4rem) 28px;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3.5rem;
  align-items: start;
}
.contact-info-block { margin-bottom: 2rem; }
.contact-info-block h3 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  margin: 0 0 0.8rem;
  font-weight: 600;
}
.contact-info-block p, .contact-info-block address {
  font-style: normal;
  font-size: 0.98rem;
  line-height: 1.7;
  margin: 0;
  color: var(--text-body);
}
.contact-info-block a {
  color: var(--text-primary);
  border-bottom: 1px solid var(--color-gold-soft);
}
.contact-info-block a:hover { color: var(--color-gold); }

.contact-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.6rem;
}
.contact-social {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 30px;
  color: var(--text-body);
  transition: all var(--t-fast) var(--ease);
}
.contact-social:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  transform: translateY(-1px);
}

.contact-form-wrap {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
}
.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
.contact-form label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
  display: block;
  font-weight: 600;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.96rem;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(195, 155, 50, 0.15);
}
.contact-form textarea { min-height: 130px; resize: vertical; }
.contact-form-success {
  display: none;
  padding: 1rem;
  background: rgba(195, 155, 50, 0.12);
  border-left: 3px solid var(--color-gold);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
}
.contact-form-success.show { display: block; }


/* ============================================================
   11. RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-card { max-width: 420px; margin: 0 auto; }
  .theme-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  body { font-size: 16px; }
  :root { --nav-height: 64px; }

  .nav-burger { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-primary);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform var(--t-base) var(--ease);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links > a {
    padding: 0.8rem 28px;
    font-size: 1.05rem;
  }
  .nav-links > a::after { display: none; }
  .nav-tools {
    margin: 1rem 28px 0;
    padding: 1rem 0 0;
    padding-left: 0;
    border-left: none;
    border-top: 1px solid var(--border);
    justify-content: space-between;
  }

  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-card { padding: 22px; }
  .hero-photo-wrap { max-width: 160px; }

  .theme-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 1.8rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .cta-strip-inner { flex-direction: column; align-items: flex-start; }

  .who-grid { grid-template-columns: 1fr; gap: 2rem; }
  .who-photo { max-width: 200px; }

  .cv-timeline-track { grid-template-columns: 1fr; gap: 1.6rem; }
  .cv-timeline::before { display: none; }
  .cv-entry { grid-template-columns: 1fr; gap: 0.4rem; }
  .cv-entry-date { font-size: 11.5px; }

  .pub-card { grid-template-columns: 1fr; gap: 0.5rem; padding: 1.4rem; }
  .pub-year { text-align: left; font-size: 1rem; }
  .pub-year::after { display: none; }

  .news-item { grid-template-columns: 1fr; gap: 0.3rem; padding: 1.2rem 0; }

  .teach-item { grid-template-columns: 1fr; gap: 0.5rem; }

  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }

  .research-theme-detail { grid-template-columns: 1fr; gap: 0.8rem; }
  .research-erc { grid-template-columns: 1fr; text-align: center; }
  .research-erc-logo { margin: 0 auto; }

  .bio-block { padding: 1.8rem 1.4rem; }
  .bio-block-head { flex-direction: column; align-items: flex-start; gap: 0.4rem; }
}

@media (max-width: 480px) {
  .brand-name { display: none; }
  .pub-filters { width: 100%; overflow-x: auto; flex-wrap: nowrap; }
  .pub-filter { white-space: nowrap; }
  .hero-formula { display: none; }
}

/* Print */
@media print {
  .site-nav, .site-footer, .hero-scroll, .pub-actions, .cta-strip,
  .nav-tools, .nav-burger { display: none !important; }
  body { background: white; color: black; }
  .hero { padding: 1rem 0; }
}

/* ============================================================
   §X — ADDENDUM — page-specific helpers that were missing
   These rules complete the about / research / publications /
   teaching / contact pages.
   ============================================================ */

/* Section utilities used across pages */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.4vw, 2.2rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
}
.section-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 1.5rem;
}
.section-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 60ch;
  margin: 0 0 2rem;
}

/* ============================================================
   ABOUT — Who I am
   ============================================================ */
.about-section { padding: clamp(3rem, 6vw, 5rem) 0; }
.about-who { background: var(--bg-primary); }
.who-grid {
  display: grid;
  grid-template-columns: minmax(260px, 380px) 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.who-photo figure {
  position: relative;
  margin: 0;
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-secondary);
  box-shadow: var(--card-shadow);
}
.who-photo img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4/5;
}
.who-photo .photo-fallback {
  display: none;
  width: 100%;
  aspect-ratio: 4/5;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 700;
  color: var(--color-gold);
  background: linear-gradient(135deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 70%, black));
}
.who-photo .photo-fallback span { letter-spacing: 0.04em; }
.who-photo-caption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  padding: 0.6rem 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--bg-secondary);
}
.who-text p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
  margin: 0 0 1.1rem;
}
.who-text p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 700;
  float: left;
  line-height: 0.9;
  padding: 0.25rem 0.6rem 0 0;
  color: var(--color-gold);
}

/* ============================================================
   ABOUT — Short Biography (extractable block)
   ============================================================ */
.about-bio { background: var(--bg-secondary); }
.bio-header { margin-bottom: 1.6rem; }
.bio-block {
  margin: 0;
  background: var(--bg-primary);
  border-left: 4px solid var(--color-gold);
  padding: clamp(2rem, 3vw, 2.6rem);
  border-radius: 4px;
  box-shadow: var(--card-shadow);
  position: relative;
}
.bio-block::before {
  content: "“";
  position: absolute;
  top: -0.4rem;
  left: 1.2rem;
  font-family: var(--font-display);
  font-size: 5rem;
  color: color-mix(in srgb, var(--color-gold) 35%, transparent);
  line-height: 1;
  pointer-events: none;
}
.bio-block p {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--text-primary);
  margin: 0;
}
.bio-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 1.6rem;
  padding-top: 1.4rem;
  border-top: 1px dashed var(--border);
}
.bio-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
}
.bio-copy-btn.copied {
  background: var(--color-gold);
  color: var(--color-primary);
  border-color: var(--color-gold);
}

/* ============================================================
   ABOUT — CV
   ============================================================ */
.about-cv { background: var(--bg-primary); }
.cv-header { margin-bottom: 2.5rem; }

/* Timeline */
.cv-timeline { margin: 0 0 3.5rem; }
.cv-timeline ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  position: relative;
}
.cv-timeline ol::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 6%;
  right: 6%;
  height: 2px;
  background: linear-gradient(to right, var(--color-gold), color-mix(in srgb, var(--color-gold) 40%, var(--border)), var(--color-blue));
  z-index: 0;
}
.cv-tl-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}
.cv-tl-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--color-gold);
  box-shadow: 0 0 0 4px var(--bg-primary);
}
.cv-tl-step.cv-tl-current .cv-tl-dot {
  background: var(--color-gold);
  border-color: var(--color-primary);
  animation: pulse-gold 2.4s ease-in-out infinite;
}
@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 4px var(--bg-primary), 0 0 0 6px transparent; }
  50%       { box-shadow: 0 0 0 4px var(--bg-primary), 0 0 0 9px color-mix(in srgb, var(--color-gold) 25%, transparent); }
}
.cv-tl-content { margin-top: 0.7rem; display: flex; flex-direction: column; gap: 0.2rem; }
.cv-tl-year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-gold);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.cv-tl-label {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.3;
}

/* CV blocks */
.cv-block { margin-bottom: 2.8rem; }
.cv-h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 1.4rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.01em;
}
.cv-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cv-entry {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1.4rem;
  padding: 1rem 0;
  border-bottom: 1px dashed var(--border);
}
.cv-entry:last-child { border-bottom: none; }
.cv-entry-period {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-gold);
  font-weight: 600;
  letter-spacing: 0.03em;
  padding-top: 0.15rem;
}
.cv-entry-body { display: flex; flex-direction: column; gap: 0.3rem; }
.cv-entry-body strong {
  font-size: 1.02rem;
  color: var(--text-primary);
  font-weight: 600;
}
.cv-entry-where {
  font-size: 0.95rem;
  color: var(--text-primary);
}
.cv-entry-meta {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.cv-entry-meta a {
  color: var(--color-blue);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}
.cv-entry-meta a:hover { border-bottom-style: solid; }
.cv-list-lang li {
  padding: 0.4rem 0;
  font-size: 0.98rem;
  color: var(--text-primary);
  border-bottom: 1px dashed var(--border);
}
.cv-list-lang li:last-child { border-bottom: none; }

/* Research interest pills */
.cv-list-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.cv-pill {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 500;
  border: 1px solid var(--border);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.cv-pill:hover {
  background: color-mix(in srgb, var(--color-gold) 14%, var(--bg-secondary));
  border-color: var(--color-gold);
  transform: translateY(-1px);
}

/* Skills columns */
.cv-skill-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.6rem;
}
.cv-skill-col h4 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 0.7rem;
  font-weight: 600;
}
.cv-skill-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cv-skill-col li {
  font-size: 0.95rem;
  color: var(--text-primary);
  padding: 0.32rem 0;
  border-bottom: 1px dashed var(--border);
}
.cv-skill-col li:last-child { border-bottom: none; }
.cv-prose {
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--text-primary);
  max-width: 75ch;
  margin: 0;
}
.cv-prose em { color: var(--text-primary); font-style: italic; }

/* Download CV buttons */
.cv-download {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.cv-dl-btn { position: relative; }
.cv-dl-btn.disabled {
  opacity: 0.55;
  pointer-events: none;
  cursor: not-allowed;
}
.cv-dl-coming {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.15rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: color-mix(in srgb, var(--color-gold) 14%, transparent);
  border-radius: 3px;
}

/* ============================================================
   RESEARCH — theme detail blocks
   ============================================================ */
.research-themes-detail { padding: clamp(2rem, 5vw, 4rem) 0; }
.research-theme-detail {
  display: block;
  padding: 2.4rem 0;
  border-top: 1px solid var(--border);
}
.research-theme-detail:first-child { border-top: none; }
.research-theme-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.6rem;
}
.research-theme-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: 0.1em;
}
.research-theme-h {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.2vw, 1.9rem);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin: 0;
  line-height: 1.2;
}
.research-theme-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}
.research-theme-text p {
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--text-primary);
  margin: 0 0 1.1rem;
}
.research-theme-pubs {
  font-size: 0.92rem !important;
  color: var(--text-muted) !important;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--border);
  margin-top: 0.4rem !important;
}
.research-theme-pubs span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gold);
  margin-right: 0.4rem;
}
.research-theme-pub {
  color: var(--color-blue);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}
.research-theme-pub:hover { border-bottom-style: solid; }

/* Aside formula card */
.research-theme-formula {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-left: 3px solid var(--color-gold);
  border-radius: 6px;
  padding: 1.4rem 1.5rem;
  font-size: 0.92rem;
}
.research-theme-formula-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 0.9rem;
  font-weight: 600;
}
.research-formula-block {
  text-align: center;
  padding: 0.5rem 0;
  overflow-x: auto;
  margin: 0 0 0.9rem;
  font-size: 1.0rem;
}
.research-theme-formula-note {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0;
}
.kbd-math {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--text-primary);
}

/* ERC project box already exists; add section wrapper */
.research-erc-section { padding: clamp(2rem, 5vw, 4rem) 0; background: var(--bg-secondary); }

/* ============================================================
   PUBLICATIONS — toolbar and list
   ============================================================ */
.pub-body { padding: clamp(2rem, 4vw, 3rem) 0 clamp(3rem, 6vw, 5rem); }
.pub-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-bottom: 1.4rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}
.pub-profiles {
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.pub-profile-link {
  color: var(--color-blue);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}
.pub-profile-link:hover { border-bottom-style: solid; }
.pub-list { display: flex; flex-direction: column; gap: 2.2rem; }
.pub-group { display: flex; flex-direction: column; gap: 1rem; }
.pub-group-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.4rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.pub-group-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-gold);
  background: color-mix(in srgb, var(--color-gold) 14%, transparent);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-weight: 600;
}

/* ============================================================
   TEACHING — list structure
   ============================================================ */
.teaching-body { padding: clamp(2rem, 4vw, 3rem) 0 clamp(3rem, 6vw, 5rem); }
.teach-block { margin-bottom: 2.6rem; }
.teach-block-h {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 1.2rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border);
}
.teach-list { display: flex; flex-direction: column; }
.teach-supervision .teach-item { background: var(--bg-secondary); }

/* ============================================================
   CONTACT — cards and form
   ============================================================ */
.contact-body { padding: clamp(2rem, 4vw, 3rem) 0 clamp(3rem, 6vw, 5rem); }
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.4rem 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow);
}
.contact-card-h {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
  color: var(--color-gold);
}
.contact-card-h h2 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0;
  font-weight: 600;
}
.contact-card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.contact-card-list li {
  font-size: 0.98rem;
  color: var(--text-primary);
  line-height: 1.5;
}
.contact-card-list a {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-gold);
  transition: color 0.2s ease;
}
.contact-card-list a:hover { color: var(--color-blue); }
.contact-card-muted {
  color: var(--text-muted);
  font-size: 0.88rem;
}
.contact-address {
  font-style: normal;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin: 0;
}
.contact-map-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.9rem;
  font-size: 0.88rem;
  color: var(--color-blue);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
  padding-bottom: 1px;
}
.contact-map-link:hover { border-bottom-style: solid; }
.contact-socials {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem 1rem;
}
.contact-socials li { font-size: 0.95rem; }
.contact-socials a {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 1px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.contact-socials a:hover {
  color: var(--color-blue);
  border-color: var(--color-blue);
}

/* Form */
.contact-form-col { display: flex; }
.contact-form-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: clamp(1.6rem, 3vw, 2.4rem);
  width: 100%;
}
.contact-form-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 1.4rem;
  color: var(--text-primary);
}
.contact-form-lead {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0 0 1.6rem;
}
.contact-form-card .form-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}
.form-row input,
.form-row textarea {
  font-family: var(--font-primary);
  font-size: 0.98rem;
  padding: 0.7rem 0.85rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-gold) 20%, transparent);
}
.form-row .form-invalid {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.18);
}
.form-actions { display: flex; justify-content: flex-start; }
.contact-form-note {
  font-size: 0.9rem;
  color: var(--color-gold);
  margin: 0;
  padding: 0.7rem 0.9rem;
  background: color-mix(in srgb, var(--color-gold) 12%, transparent);
  border-left: 3px solid var(--color-gold);
  border-radius: 4px;
}

/* ============================================================
   Responsive overrides for new structures
   ============================================================ */
@media (max-width: 900px) {
  .who-grid { grid-template-columns: 1fr; }
  .who-photo { max-width: 320px; margin: 0 auto; }
  .research-theme-grid { grid-template-columns: 1fr; }
  .cv-timeline ol { grid-template-columns: 1fr 1fr; }
  .cv-timeline ol::before { display: none; }
  .pub-toolbar { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 600px) {
  .cv-entry { grid-template-columns: 1fr; gap: 0.4rem; }
  .cv-entry-period { font-size: 0.78rem; }
  .contact-socials { grid-template-columns: 1fr; }
  .cv-timeline ol { grid-template-columns: 1fr; }
  .cv-tl-step { flex-direction: row; gap: 0.8rem; align-items: center; text-align: left; }
  .cv-tl-content { margin-top: 0; }
}


/* ============================================================
   §Y — INTERACTIONS DYNAMIQUES & MICRO-ANIMATIONS
   ────────────────────────────────────────────────────────────
   Tout ce qui suit ajoute du mouvement, du retour visuel et
   une navigation plus fluide. Si vous voulez tout désactiver,
   commentez ce bloc — le site reste 100 % fonctionnel sans.
   ============================================================ */

/* ── Barre de progression de défilement (en haut de la page) ── */
/* Affichée uniquement au scroll, large = 100 %, hauteur 3 px,
   couleur d'accent or → bleu pour évoquer le gradient de la marque */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 200;
  pointer-events: none;
}
.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-blue));
  transition: width 0.1s ease-out;
  box-shadow: 0 0 8px color-mix(in srgb, var(--color-gold) 50%, transparent);
}

/* ── Bouton "retour en haut" ── */
/* Apparaît après ~500 px de défilement, en bas à droite,
   avec léger flottement au survol. */
.scroll-to-top {
  position: fixed;
  bottom: 1.6rem;
  right: 1.6rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-gold);
  border: 1px solid color-mix(in srgb, var(--color-gold) 40%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 150;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
  box-shadow: 0 6px 18px rgba(0,0,0,0.18);
}
.scroll-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.scroll-to-top:hover {
  background: var(--color-gold);
  color: var(--color-primary);
  transform: translateY(-3px);
}
.scroll-to-top:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 3px;
}
[data-theme="dark"] .scroll-to-top {
  background: var(--bg-secondary);
  border-color: var(--color-gold);
}

/* ── Transitions de pages (fade-in douce au chargement) ── */
/* Quand on arrive sur une nouvelle page, le main fait un fondu
   d'entrée plutôt qu'un apparition brutale. */
main#content {
  animation: page-fade-in 0.45s ease-out;
}
@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Indicateur de chargement entre les pages ── */
/* Quand l'utilisateur clique sur un lien de navigation, une barre
   d'avancement passe en haut pour confirmer le chargement. */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-blue));
  z-index: 250;
  transition: width 0.3s ease-out, opacity 0.3s ease;
  opacity: 0;
  pointer-events: none;
}
.page-loader.loading {
  opacity: 1;
  width: 80%;
  transition: width 1.2s ease-out;
}
.page-loader.complete {
  width: 100%;
  opacity: 0;
}

/* ── Micro-interactions sur les cartes ── */
/* Légère élévation au survol pour signaler l'interactivité */
.theme-card,
.news-item,
.pub-card {
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.theme-card:hover,
.news-item:hover {
  transform: translateY(-3px);
}

/* ── Soulignement animé des liens de navigation ── */
/* Le trait apparaît en glissant depuis la gauche, plus élégant
   qu'un simple souligné CSS. */
.nav-links > a {
  position: relative;
}
.nav-links > a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}
.nav-links > a:hover::after,
.nav-links > a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ── Animation des "pills" d'intérêts de recherche ── */
.cv-pill { animation: pill-pop 0.5s ease-out backwards; }
.cv-pill:nth-child(1)  { animation-delay: 0.02s; }
.cv-pill:nth-child(2)  { animation-delay: 0.04s; }
.cv-pill:nth-child(3)  { animation-delay: 0.06s; }
.cv-pill:nth-child(4)  { animation-delay: 0.08s; }
.cv-pill:nth-child(5)  { animation-delay: 0.10s; }
.cv-pill:nth-child(6)  { animation-delay: 0.12s; }
.cv-pill:nth-child(7)  { animation-delay: 0.14s; }
.cv-pill:nth-child(8)  { animation-delay: 0.16s; }
.cv-pill:nth-child(9)  { animation-delay: 0.18s; }
.cv-pill:nth-child(10) { animation-delay: 0.20s; }
.cv-pill:nth-child(n+11) { animation-delay: 0.22s; }
@keyframes pill-pop {
  from { opacity: 0; transform: translateY(6px) scale(0.92); }
  to   { opacity: 1; transform: translateY(0)   scale(1); }
}

/* ── Compensation du sticky nav pour les ancres (#anchor) ── */
/* Sans cela, cliquer sur #J3 cache le titre sous le nav. */
[id] { scroll-margin-top: 90px; }

/* ── Image du hero / about : effet de zoom doux au survol ── */
.who-photo figure {
  overflow: hidden;
}
.who-photo img {
  transition: transform 0.7s ease;
}
.who-photo figure:hover img {
  transform: scale(1.03);
}

/* ── Menu mobile : transition propre ── */
@media (max-width: 900px) {
  .nav-links {
    transition: transform 0.35s cubic-bezier(0.4, 0.0, 0.2, 1), opacity 0.25s ease;
  }
}

/* ── Respecter les préférences d'accessibilité ── */
/* Si l'utilisateur a "réduire les animations" activé, on coupe tout. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .scroll-progress-bar { transition: none; }
  main#content { animation: none; }
  .cv-pill { animation: none; }
}


/* ── Toast d'aide pour les raccourcis clavier ── */
/* Affiché en bas à gauche quand l'utilisateur tape "?" */
.shortcuts-toast {
  position: fixed;
  bottom: 1.6rem;
  left: 1.6rem;
  max-width: 280px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-left: 3px solid var(--color-gold);
  border-radius: 8px;
  padding: 1.1rem 1.3rem;
  z-index: 200;
  font-size: 0.88rem;
  box-shadow: 0 10px 28px rgba(0,0,0,0.18);
  opacity: 0;
  transform: translateX(-12px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.shortcuts-toast.visible {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}
.shortcuts-toast-h {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.7rem;
  font-weight: 600;
}
.shortcuts-toast ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.shortcuts-toast li {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-primary);
  font-size: 0.86rem;
}
.shortcuts-toast kbd {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.12rem 0.4rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  color: var(--text-primary);
  min-width: 1.2em;
  text-align: center;
}
.shortcuts-toast-close {
  position: absolute;
  top: 0.4rem;
  right: 0.5rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  line-height: 1;
}
.shortcuts-toast-close:hover { color: var(--color-gold); }

@media (max-width: 600px) {
  .shortcuts-toast { display: none; }  /* Inutile sur mobile (pas de clavier) */
}


/* ============================================================
   §Z — NOUVEAU : Dropdown nav (Research ▾ Publications)
   ────────────────────────────────────────────────────────────
   Un parent dropdown qui regroupe "Research" et "Publications"
   en un seul item de navigation. Cliquer sur le parent ouvre
   la page work.html (la "page double"). Survol = sous-menu.
   ============================================================ */
.nav-dropdown-parent {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-dropdown-trigger {
  /* hérite des styles de .nav-links > a */
  position: relative;
}
.nav-dropdown-toggle {
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.2rem 0.1rem;
  display: inline-flex;
  align-items: center;
  transition: transform 0.25s ease, color 0.2s ease;
}
.nav-dropdown-toggle:hover { color: var(--color-gold); }
.nav-dropdown-parent:hover .nav-dropdown-toggle,
.nav-dropdown-parent.open .nav-dropdown-toggle {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.8rem);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  box-shadow: 0 10px 28px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  z-index: 100;
}
.nav-dropdown-menu::before {
  /* petite flèche pointant vers le parent */
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: var(--bg-primary);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
}
.nav-dropdown-parent:hover .nav-dropdown-menu,
.nav-dropdown-parent:focus-within .nav-dropdown-menu,
.nav-dropdown-parent.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu > a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.85rem;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.92rem;
  border-radius: 5px;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-dropdown-menu > a:hover,
.nav-dropdown-menu > a:focus-visible {
  background: var(--bg-secondary);
  color: var(--color-gold);
  outline: none;
}
.nav-dropdown-menu > a.active {
  background: color-mix(in srgb, var(--color-gold) 14%, transparent);
  color: var(--color-gold);
  font-weight: 600;
}

/* ── Mobile : dropdown menu structure ──
   Sur mobile, le dropdown s'affiche en permanence comme une sous-section
   indentée. Plus besoin de toucher la flèche pour voir les options.
   NOTE : breakpoint aligné sur celui du burger (768 px). Il était à 900 px,
   ce qui empilait le sous-menu à l'intérieur d'une barre encore horizontale
   entre 769 et 900 px. */
@media (max-width: 768px) {
  .nav-dropdown-parent {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
    gap: 0;
  }
  .nav-dropdown-trigger {
    flex: 1;
    width: 100%;
    display: block;
  }
  /* Cache la petite flèche sur mobile (pas nécessaire) */
  .nav-dropdown-toggle { display: none; }
  .nav-dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    width: 100%;
    padding: 0.3rem 0 0.6rem 0;
    margin-top: 0.3rem;
    /* IMPORTANT: toujours affiché en flex sur mobile */
    display: flex !important;
    opacity: 1 !important;
    visibility: visible !important;
    gap: 0.25rem;
  }
  .nav-dropdown-menu::before { display: none; }
  .nav-dropdown-menu > a {
    padding: 0.7rem 0.85rem 0.7rem 1.5rem;
    border-left: 2px solid var(--color-gold);
    margin-left: 0.5rem;
    border-radius: 0;
    background: color-mix(in srgb, var(--color-gold) 6%, transparent);
    font-size: 0.95rem;
  }
  .nav-dropdown-menu > a::before {
    content: "↳";
    margin-right: 0.5rem;
    color: var(--color-gold);
    font-weight: 700;
  }
}

/* ============================================================
   §Z bis — PAGE work.html (chooser Research / Publications)
   ============================================================ */
.work-chooser {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  min-height: calc(100vh - 72px - 200px);
  align-items: stretch;
  gap: 0;
}

.work-half {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--text-primary);
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 4vw, 4rem);
  background: var(--bg-secondary);
  overflow: hidden;
  transition: background 0.35s ease, transform 0.35s ease;
  isolation: isolate;
}
.work-half-left  { border-right: 1px solid var(--border); }
.work-half-right { border-left:  1px solid var(--border); }

.work-half::before {
  /* voile gradient qui apparait au survol */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--color-gold) 0%, transparent),
    color-mix(in srgb, var(--color-gold) 0%, transparent));
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
}
.work-half-left:hover::before {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--color-gold) 8%, transparent),
    color-mix(in srgb, var(--color-gold) 18%, transparent));
  opacity: 1;
}
.work-half-right:hover::before {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--color-blue) 6%, transparent),
    color-mix(in srgb, var(--color-blue) 16%, transparent));
  opacity: 1;
}

.work-half-pattern {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.6;
  transition: opacity 0.45s ease, transform 0.6s ease;
}
.work-half:hover .work-half-pattern {
  opacity: 1;
  transform: scale(1.04);
}

.work-half-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  max-width: 480px;
  margin: 0 auto;
  height: 100%;
  justify-content: center;
}

.work-half-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-gold);
  letter-spacing: 0.12em;
  font-weight: 600;
}
.work-half-h {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.6rem);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.05;
  letter-spacing: -0.02em;
  transition: transform 0.35s ease;
}
.work-half:hover .work-half-h { transform: translateX(6px); }

.work-half-lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0;
}
.work-half-tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.work-half-tags li {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.82rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.25s ease, background 0.25s ease;
}
.work-half-left:hover  .work-half-tags li { border-color: color-mix(in srgb, var(--color-gold) 50%, var(--border)); }
.work-half-right:hover .work-half-tags li { border-color: color-mix(in srgb, var(--color-blue) 50%, var(--border)); }

.work-half-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 600;
}
.work-half-right .work-half-cta { color: var(--color-blue); }
.work-half-cta svg {
  transition: transform 0.3s ease;
}
.work-half:hover .work-half-cta svg { transform: translateX(6px); }

.work-divider {
  position: relative;
  width: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
}
.work-divider::before,
.work-divider::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 1px;
  height: calc(50% - 30px);
  background: var(--border);
}
.work-divider::before { top: 0; }
.work-divider::after  { bottom: 0; }
.work-divider-or {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  padding: 0.4rem 0.6rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 999px;
}

@media (max-width: 900px) {
  .work-chooser {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .work-half-left { border-right: none; border-bottom: 1px solid var(--border); }
  .work-half-right { border-left: none; border-top: 1px solid var(--border); }
  .work-divider {
    width: 100%;
    height: 60px;
  }
  .work-divider::before,
  .work-divider::after {
    left: auto;
    width: calc(50% - 30px);
    height: 1px;
    top: 50%;
  }
  .work-divider::before { left: 0; }
  .work-divider::after  { right: 0; bottom: auto; }
}

/* ============================================================
   §Z ter — Mots-clés dans la hero card (remplace la formule)
   ============================================================ */
.hero-card-keywords {
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 1px dashed color-mix(in srgb, var(--color-gold) 35%, transparent);
}
.hero-card-keywords-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.7rem;
  font-weight: 600;
}
.hero-card-keywords-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.hero-card-keywords-list span {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  font-size: 0.76rem;
  background: color-mix(in srgb, var(--color-gold) 12%, transparent);
  color: #FBFAF6;
  border: 1px solid color-mix(in srgb, var(--color-gold) 30%, transparent);
  border-radius: 999px;
  letter-spacing: 0.01em;
}

/* ============================================================
   §Z quater — Publication card : actions sur UNE seule ligne
   ────────────────────────────────────────────────────────────
   Avant : badges (Journal/Under review) sur une ligne,
           actions (BibTeX/DOI/Code) sur une autre.
   Après : tout fusionné sur la même ligne, séparateurs visuels
           entre les pilules.
   ============================================================ */
.pub-actions-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.6rem;
  margin-top: 0.8rem;
}
.pub-actions-row .pub-badge,
.pub-actions-row .pub-link,
.pub-actions-row .pub-abstract-toggle {
  margin: 0;
}
/* Séparateur subtil entre statut et actions */
.pub-actions-sep {
  display: inline-block;
  width: 1px;
  height: 18px;
  background: var(--border);
  margin: 0 0.2rem;
}
@media (max-width: 600px) {
  .pub-actions-sep { display: none; }
}


/* Petit label "MATLAB" / "Python" sous le bouton Code */
.pub-link-sub {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-gold);
  background: color-mix(in srgb, var(--color-gold) 14%, transparent);
  border-radius: 3px;
  vertical-align: 1px;
}
.pub-link-code {
  /* Met le bouton Code en avant : il sera souvent ce qu'un lecteur cherche en priorité */
  border-color: color-mix(in srgb, var(--color-blue) 40%, var(--border)) !important;
}
.pub-link-code:hover {
  background: color-mix(in srgb, var(--color-blue) 8%, transparent) !important;
}

/* ============================================================
   §Z — LIENS EXTERNES — distinctifs et dynamiques
   ────────────────────────────────────────────────────────────
   Tout lien <a target="_blank"> (= lien sortant) reçoit :
     1. une couleur d'accent (bleu, ou or au survol)
     2. un petit pictogramme ↗ qui apparaît après le texte
     3. un soulignement animé qui s'étire au survol
   On NE styles PAS :
     - les liens en logo/boutons (.btn, .footer-brand-mark, etc.)
     - les liens de navigation (.nav-links a)
     - les liens dans des cartes spécifiques où le style est déjà géré
   ============================================================ */

/* Sélecteur global pour tout lien externe */
a[target="_blank"]:not(.btn):not(.nav-brand):not(.footer-brand-mark):not(.pub-link):not(.pub-link-code):not(.theme-link):not(.cta-strip-btn):not(.contact-map-link):not(.research-erc a):not(.work-half):not(.scroll-to-top):not(.shortcuts-toast-close) {
  color: var(--color-blue);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1.5px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.3s ease, color 0.2s ease;
  padding-right: 0.95em;
}
a[target="_blank"]:not(.btn):not(.nav-brand):not(.footer-brand-mark):not(.pub-link):not(.pub-link-code):not(.theme-link):not(.cta-strip-btn):not(.contact-map-link):not(.research-erc a):not(.work-half):not(.scroll-to-top):not(.shortcuts-toast-close):hover {
  color: var(--color-gold);
  background-size: 100% 1.5px;
}

/* Petit pictogramme ↗ après le texte */
a[target="_blank"]:not(.btn):not(.nav-brand):not(.footer-brand-mark):not(.pub-link):not(.pub-link-code):not(.theme-link):not(.cta-strip-btn):not(.contact-map-link):not(.research-erc a):not(.work-half):not(.scroll-to-top):not(.shortcuts-toast-close)::after {
  content: "↗";
  position: absolute;
  right: 0;
  top: 0;
  font-size: 0.78em;
  font-weight: 600;
  color: currentColor;
  opacity: 0.7;
  transition: transform 0.25s ease, opacity 0.25s ease;
  margin-left: 0.15em;
}
a[target="_blank"]:not(.btn):not(.nav-brand):not(.footer-brand-mark):not(.pub-link):not(.pub-link-code):not(.theme-link):not(.cta-strip-btn):not(.contact-map-link):not(.research-erc a):not(.work-half):not(.scroll-to-top):not(.shortcuts-toast-close):hover::after {
  transform: translate(2px, -2px);
  opacity: 1;
}

/* Liens externes dans les paragraphes "who I am" : style plus visible */
.who-text p a[target="_blank"] {
  border-bottom: 1px solid color-mix(in srgb, var(--color-blue) 30%, transparent);
}

/* Footer : palette inversée — utiliser une couleur plus claire */
.footer-col a[target="_blank"] {
  color: inherit;
}

/* Liens dans les pub-actions : déjà stylés, on ne les retouche pas */
.pub-link[target="_blank"],
.pub-link-code[target="_blank"] {
  /* RAS, on garde le style existant */
}



/* ============================================================
   §Z ter — AJOUTS 2026-08
   Nouvelles classes strictement nécessaires aux ajouts de contenu.
   Aucune règle existante n'est modifiée ici ; tout réutilise les
   variables de :root et les conventions déjà en place.
   ------------------------------------------------------------
   1. Puces d'affiliation (hero)            .badge-past / .badge-next
   2. Sous-navigation d'ancres              .page-subnav
   3. Page Contact & Miscellaneous          .misc-*
   4. Blog (index + article)                .blog-* / .post-*
   5. Divers enseignement                   .teach-crosslink / .teach-empty
   ============================================================ */

/* ── 1. Puces d'affiliation ─────────────────────────────────── */
.hero-badges-past {
  align-items: center;
  gap: 0.45rem;
  margin-top: -1.4rem;
}
.hero-badges-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-right: 0.15rem;
}
.badge-past {
  color: var(--text-muted);
  background: transparent;
  border-color: var(--border);
  font-size: 11px;
  opacity: 0.85;
}
.badge-past:hover { opacity: 1; }
.badge-next {
  color: var(--color-blue);
  background: transparent;
  border-color: color-mix(in srgb, var(--color-blue) 40%, transparent);
}

/* ── 2. Sous-navigation d'ancres ────────────────────────────── */
.page-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  margin-top: 1.8rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
}
.page-subnav a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-subnav a:hover,
.page-subnav a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-gold);
}

/* ── 3. Page Contact & Miscellaneous ────────────────────────── */
.misc-section {
  padding: 4.5rem 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: calc(var(--nav-height) + 16px);
}
.misc-section .section-lead { max-width: var(--max-width-reading); }

.misc-list { list-style: none; margin: 2rem 0 0; padding: 0; }
.misc-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.2rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--border);
}
.misc-item:first-child { border-top: none; }
.misc-item-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-soft);
  padding-top: 3px;
}
.misc-item-title { margin: 0 0 0.35rem; font-weight: 600; color: var(--text-primary); }
.misc-item-text  { margin: 0; color: var(--text-body); line-height: 1.7; }
.misc-empty { color: var(--text-muted); font-style: italic; margin-top: 1rem; }

.misc-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem 2.6rem;
  margin-top: 2rem;
}
.misc-links-h {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 0.8rem;
}
.misc-links-group ul { list-style: none; margin: 0; padding: 0; }
.misc-links-group li { padding: 0.3rem 0; }
.misc-links-group a { color: var(--text-body); text-decoration: none; border-bottom: 1px solid var(--border-strong); }
.misc-links-group a:hover { color: var(--color-blue); border-bottom-color: var(--color-blue); }

/* ── 4. Page Supervision ──────────────────────────────────────
   La liste réutilise .teach-list / .teach-item de la page Teaching :
   aucune règle spécifique n'est nécessaire. */

/* ── 4. Blog ────────────────────────────────────────────────── */
.blog-list { display: flex; flex-direction: column; gap: 1.4rem; }
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.8rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}
.blog-card:hover { box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.blog-card-date {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-soft);
}
.blog-card-title { font-family: var(--font-display); font-size: 1.45rem; margin: 0.45rem 0 0.6rem; }
.blog-card-title a { color: var(--text-primary); text-decoration: none; }
.blog-card-title a:hover { color: var(--color-blue); }
.blog-card-summary { margin: 0 0 1rem; color: var(--text-body); line-height: 1.7; }
.blog-lang-note { margin: 0 0 0.8rem; font-size: 0.9rem; color: var(--text-muted); font-style: italic; }
.blog-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--color-blue);
  text-decoration: none;
}
.blog-card-link:hover { gap: 10px; }

.post-body { padding: 3rem 0 4.5rem; }
.post-content { max-width: var(--max-width-reading); }
.post-content p { font-size: 1.06rem; line-height: 1.85; color: var(--text-body); margin: 0 0 1.4rem; }
.post-content em { font-style: italic; }
.post-back { margin-top: 3rem; }
.post-back a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
}
.post-back a:hover { color: var(--color-primary); }

/* ── 5. Divers enseignement ─────────────────────────────────── */
.teach-crosslink { margin-top: 2rem; }
.teach-crosslink a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--color-blue);
  text-decoration: none;
}
.teach-crosslink a:hover { gap: 10px; }
.teach-empty { color: var(--text-muted); font-style: italic; }

/* ── Mobile ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .misc-item { grid-template-columns: 1fr; gap: 0.25rem; }
  .misc-section { padding: 3rem 0; }
  .hero-badges-past { margin-top: -1rem; }
  .page-subnav { gap: 0.35rem 1rem; }
}