/* TINAP Website — Scientific Design System v2.0 */
/* Design principle: "boring = trustworthy" — minimalist, structured, credible */

/* ===== CSS Variables ===== */
:root {
  /* Scientific color palette — neutral, academic */
  --color-bg: #f8f7f4;
  --color-bg-alt: #f0eeea;
  --color-bg-dark: #1a1a2e;
  --color-surface: #ffffff;
  --color-surface-alt: #f4f3ef;
  --color-border: #d8d5ce;
  --color-border-light: #e8e5de;

  /* Primary accent — deep research blue */
  --color-accent: #1e3a5f;
  --color-accent-mid: #2d5282;
  --color-accent-light: #ebf0f7;
  --color-accent-hover: #16304f;

  /* Secondary — warm amber for evidence highlights */
  --color-amber: #b45309;
  --color-amber-light: #fef3c7;
  --color-amber-dim: #fde68a;

  /* Text */
  --color-text-primary: #1a1a2e;
  --color-text-secondary: #4a5568;
  --color-text-muted: #718096;
  --color-text-inverse: #f8f7f4;

  /* Status */
  --color-success: #2f855a;
  --color-error: #c53030;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-mono: 'Courier New', Courier, monospace;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border radius */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;

  /* Shadows — subtle */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-sm: 0 2px 6px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-text-primary);
  line-height: 1.25;
  margin-bottom: var(--space-4);
}

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); font-weight: 600; letter-spacing: -0.01em; }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }
h5 { font-size: 0.95rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.75;
}

p:last-child { margin-bottom: 0; }

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: var(--transition-fast);
}

a:hover {
  text-decoration-color: currentColor;
  color: var(--color-accent-hover);
}

ul, ol { padding-left: var(--space-6); }
li { margin-bottom: var(--space-2); color: var(--color-text-secondary); }

/* ===== Layout ===== */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.container--narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.section {
  padding: var(--space-24) 0;
}

.section--alt {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.section--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: #f0f0f0;
}

.section--dark p,
.section--dark li {
  color: #a0aec0;
}

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
  display: block;
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-intro {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-12);
  line-height: 1.75;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248, 247, 244, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.nav-logo:hover {
  text-decoration: none;
  color: var(--color-accent-hover);
}

.nav-links {
  display: flex;
  gap: 0;
  list-style: none;
  align-items: center;
}

.nav-links a {
  display: block;
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--color-accent);
  background: var(--color-accent-light);
  text-decoration: none;
}

.nav-links a.active {
  color: var(--color-accent);
  font-weight: 600;
}

/* Language Switcher */
.lang-switcher {
  position: relative;
  margin-left: var(--space-4);
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-sans);
}

.lang-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: var(--transition-fast);
  min-width: 120px;
  box-shadow: var(--shadow-md);
}

.lang-switcher.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-4);
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-sans);
}

.lang-option:hover {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-fast);
  display: block;
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 64px;
  background: var(--color-bg-dark);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 40%, rgba(30, 58, 95, 0.6) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 80% 60%, rgba(30, 58, 95, 0.4) 0%, transparent 70%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-16) var(--space-8);
  text-align: left;
}

.hero-org-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #6b8fbd;
  margin-bottom: var(--space-6);
  display: block;
  animation: fadeInUp 0.6s ease-out both;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 5vw, 3.5rem);
  color: #f0f0f0;
  line-height: 1.2;
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.6s ease-out 0.1s both;
  max-width: 680px;
}

.hero-title em {
  font-style: italic;
  color: #a8c4e0;
}

.hero-thesis {
  font-size: 1rem;
  color: #8ba8c8;
  line-height: 1.75;
  max-width: 560px;
  margin-bottom: var(--space-12);
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

/* ===== Evidence Triptych (hero bottom) ===== */
.evidence-triptych {
  background: var(--color-surface);
  border-top: 3px solid var(--color-accent);
}

.triptych-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.triptych-item {
  padding: var(--space-8);
  border-right: 1px solid var(--color-border-light);
  transition: var(--transition-normal);
}

.triptych-item:last-child {
  border-right: none;
}

.triptych-item:hover {
  background: var(--color-accent-light);
}

.triptych-number {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
  line-height: 1;
}

.triptych-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  display: block;
}

.triptych-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
  border: 1px solid transparent;
  letter-spacing: 0.01em;
  line-height: 1;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent-light);
  color: var(--color-accent-hover);
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: #a8c4e0;
  border-color: rgba(168, 196, 224, 0.4);
}

.btn-ghost:hover {
  background: rgba(168, 196, 224, 0.1);
  color: #c8dff3;
  border-color: rgba(168, 196, 224, 0.7);
  text-decoration: none;
}

/* ===== RCA Loop / Diagram ===== */
.rca-diagram {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.rca-diagram::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), #4a7bb5, var(--color-accent));
}

.rca-loop {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: var(--space-8) 0;
  flex-wrap: nowrap;
}

.rca-node {
  background: var(--color-accent);
  color: white;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 600;
  text-align: center;
  min-width: 120px;
  position: relative;
  line-height: 1.3;
}

.rca-node--alt {
  background: var(--color-bg-dark);
}

.rca-node--disrupted {
  background: #7b2d2d;
  border: 2px dashed #c53030;
}

.rca-node--restore {
  background: #2f6e4e;
}

.rca-arrow {
  flex: 1;
  height: 2px;
  background: var(--color-border);
  position: relative;
  max-width: 60px;
  margin: 0 var(--space-2);
}

.rca-arrow::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--color-border);
  border-right: none;
}

.rca-arrow--down {
  width: 2px;
  height: 40px;
  max-width: none;
  flex: none;
  background: var(--color-border);
  margin: var(--space-2) auto;
}

.rca-loop-caption {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  font-style: italic;
}

/* ===== Evidence Cards ===== */
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.evidence-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.evidence-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.evidence-card--apl::before { background: #2f6e4e; }
.evidence-card--bissell::before { background: #2d5282; }
.evidence-card--progenitor::before { background: #7b4f1c; }
.evidence-card--dual::before {
  background: linear-gradient(90deg, #2f6e4e, #2d5282);
}

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

.evidence-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.evidence-tag--clinical { background: #d1fae5; color: #065f46; }
.evidence-tag--experimental { background: #dbeafe; color: #1e3a8a; }
.evidence-tag--core { background: #fef3c7; color: #92400e; }
.evidence-tag--synthesis { background: #ede9fe; color: #4c1d95; }

.evidence-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-3);
}

.evidence-card p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.evidence-finding {
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-accent);
  padding: var(--space-3) var(--space-4);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: var(--space-4);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-style: italic;
}

/* ===== Key Test Section ===== */
.key-test-box {
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.key-test-question {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  color: var(--color-text-primary);
  margin-bottom: var(--space-8);
  line-height: 1.4;
}

.phenotype-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.phenotype-list li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-accent-light);
  color: var(--color-accent);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0;
}

.key-test-conclusion {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.key-test-conclusion strong {
  color: var(--color-accent);
}

/* ===== Laboratory / Research Map ===== */
.lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.lab-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: var(--transition-normal);
}

.lab-item:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.lab-item h4 {
  font-size: 0.95rem;
  margin-bottom: var(--space-2);
  color: var(--color-accent);
}

.lab-item p {
  font-size: 0.85rem;
  margin: 0;
}

/* Experiment cards */
.experiment-list {
  list-style: none;
  padding: 0;
}

.experiment-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 0;
}

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

.experiment-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding-top: 3px;
  min-width: 28px;
}

.experiment-body h4 {
  font-size: 0.95rem;
  margin-bottom: var(--space-1);
  color: var(--color-text-primary);
}

.experiment-body p {
  font-size: 0.85rem;
  margin: 0;
  color: var(--color-text-muted);
}

/* ===== PBI Section ===== */
.pbi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.pbi-channel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  transition: var(--transition-normal);
}

.pbi-channel:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.pbi-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
  display: block;
}

.pbi-channel h4 {
  font-size: 0.85rem;
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pbi-channel p {
  font-size: 0.8rem;
  margin: 0;
  color: var(--color-text-muted);
}

.pbi-pathway {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-8);
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-6);
}

/* ===== Research Program ===== */
.themes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
}

.theme-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: var(--transition-normal);
}

.theme-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.theme-card h4 {
  font-size: 0.9rem;
  margin-bottom: var(--space-2);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.theme-card p {
  font-size: 0.82rem;
  margin: 0;
}

/* ===== Collaboration / CTA ===== */
.collab-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.collab-cta-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin: var(--space-8) 0;
  text-align: left;
}

.collab-cta-list li {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  font-size: 0.95rem;
  color: var(--color-text-primary);
  margin-bottom: 0;
  transition: var(--transition-fast);
}

.collab-cta-list li:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.collab-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ===== About Section ===== */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.founders-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}

.board-list {
  list-style: none;
  padding: 0;
}

.board-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 0;
  gap: var(--space-4);
  flex-wrap: wrap;
}

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

.board-name {
  font-weight: 500;
  color: var(--color-text-primary);
  font-size: 0.9rem;
}

.board-role {
  font-size: 0.78rem;
  color: var(--color-accent);
  font-weight: 500;
  background: var(--color-accent-light);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* ===== Forms ===== */
.form-group { margin-bottom: var(--space-4); }

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
  font-size: 0.85rem;
  font-weight: 500;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.form-textarea { min-height: 140px; resize: vertical; }

.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-muted); }

/* ===== Quote / Callout ===== */
.quote-block {
  border-left: 4px solid var(--color-accent);
  padding: var(--space-6) var(--space-8);
  margin: var(--space-8) 0;
  background: var(--color-accent-light);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.quote-block p {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--color-text-primary);
  font-style: italic;
  margin: 0;
}

.callout {
  background: var(--color-amber-light);
  border: 1px solid var(--color-amber-dim);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  font-size: 0.9rem;
  color: var(--color-amber);
}

/* ===== Newsletter ===== */
.newsletter-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-form {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  flex-wrap: wrap;
  justify-content: center;
}

.newsletter-form .form-input {
  flex: 1;
  min-width: 220px;
}

.newsletter-success {
  display: none;
  background: #d1fae5;
  color: #065f46;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  margin-top: var(--space-4);
  font-size: 0.9rem;
}

.newsletter-success.show { display: block; }

/* ===== Publication Links ===== */
.pub-links {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-6);
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-16);
}

.contact-info-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.contact-info-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-info-text h4 {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-1);
  font-family: var(--font-sans);
  font-weight: 600;
}

.contact-info-text p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-primary);
}

/* ===== Funding Page ===== */
.funding-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
}

.funding-card h3 {
  font-size: 1rem;
  margin-bottom: var(--space-3);
}

.funding-highlight {
  background: var(--color-accent-light);
  border-left: 4px solid var(--color-accent);
  padding: var(--space-6) var(--space-8);
  margin: var(--space-8) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.funding-highlight p {
  margin: 0;
  font-style: italic;
  color: var(--color-text-primary);
}

/* ===== Footer ===== */
.footer {
  background: var(--color-bg-dark);
  color: #a0aec0;
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: #f0f0f0;
  margin-bottom: var(--space-4);
  display: block;
  text-decoration: none;
}

.footer-tagline {
  font-size: 0.82rem;
  color: #718096;
  line-height: 1.6;
  margin: 0;
}

.footer-heading {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #a0aec0;
  margin-bottom: var(--space-4);
  font-family: var(--font-sans);
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: var(--space-2);
  color: #718096;
}

.footer-links a {
  color: #718096;
  font-size: 0.85rem;
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: #a0aec0;
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: #4a5568;
  margin: 0;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* ===== Utility ===== */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-auto { margin-top: auto; }

/* ===== Page header (sub-pages) ===== */
.page-header {
  background: var(--color-bg-dark);
  padding: calc(64px + var(--space-12)) 0 var(--space-12);
}

.page-header h1 { color: #f0f0f0; margin-bottom: var(--space-4); }
.page-header p { color: #8ba8c8; max-width: 560px; margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .triptych-grid {
    grid-template-columns: 1fr;
  }
  .triptych-item {
    border-right: none;
    border-bottom: 1px solid var(--color-border-light);
  }
  .triptych-item:last-child { border-bottom: none; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: var(--space-4);
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle { display: flex; }

  .lang-switcher { margin-left: 0; }

  .hero-content { text-align: center; }

  .hero-actions {
    justify-content: center;
  }

  .hero-thesis { margin-left: auto; margin-right: auto; }

  .section { padding: var(--space-16) 0; }

  .container, .container--narrow {
    padding: 0 var(--space-4);
  }

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

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

  .rca-loop {
    flex-direction: column;
    gap: var(--space-2);
  }

  .rca-arrow {
    width: 2px;
    height: 30px;
    max-width: none;
    margin: 0 auto;
  }

  .rca-arrow::after {
    right: 50%;
    top: auto;
    bottom: -1px;
    transform: translateX(50%);
    border: 5px solid transparent;
    border-top-color: var(--color-border);
    border-left: none;
    border-bottom: none;
  }

  .pbi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }
  .pbi-grid { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
  .newsletter-form .form-input { min-width: 0; }
}