/* ==========================================================================
   PROF. DR. ORHAN KURAL - OFFICIAL MEMORIAL & ARCHIVE PORTAL
   Master Editorial Design System & Stylesheet
   Aesthetic: High-End Editorial Archive, Documentary Memoir & Broadsheet Monograph
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400..800;1,9..144,400..700&family=Newsreader:ital,opsz,wght@0,6..72,400..800;1,6..72,400..700&family=Playfair+Display:ital,wght@0,500..800;1,500..700&family=Plus+Jakarta+Sans:ital,wght@0,300..700;1,400..600&family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap');

/* ==========================================================================
   Design Tokens (Warm Archival Paper & Deep Ink Palette)
   ========================================================================== */
:root {
  /* Typography */
  --font-serif: 'Newsreader', 'Playfair Display', Georgia, serif;
  --font-display: 'Fraunces', 'Playfair Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Space Mono', 'JetBrains Mono', Menlo, Consolas, monospace;

  /* Tonal Palette (Warm Archival Paper & Ink - Ban Neon & Generic SaaS) */
  --bg-primary: #FBF9F5;       /* Warm newsprint / aged archival off-white */
  --bg-secondary: #F4EFE6;     /* Deeper archival paper tone for panels & bands */
  --bg-card: #FFFFFF;          /* Clean paper reading surface */
  --bg-card-subtle: #F8F5EE;   /* Light tinted panel */
  --bg-card-hover: #FAF7F0;

  /* Ink & Typography Shades */
  --text-main: #1F2022;        /* Deep charcoal / ink black for soft print contrast */
  --text-secondary: #3D3F43;   /* Authoritative editorial body */
  --text-muted: #585A62;       /* Secondary notes & dates */
  --text-dim: #7C7E86;         /* Footnotes & metadata */

  /* Earthy Nature & Travel Accents */
  --accent-terracotta: #A84B2B;/* Warm brick / travel route / literature */
  --accent-terracotta-dark: #87361A;
  --accent-terracotta-light: #F4ECE7;
  --accent-forest: #2D4A3E;    /* Moss & forest green / environmental cause */
  --accent-forest-light: #EBF2EE;
  --accent-navy: #1B3044;      /* Deep ocean navy / ITU academic authority */
  --accent-navy-light: #EAF0F6;
  --accent-ochre: #9A6E24;     /* Archival brass / parchment seal */

  /* Legacy variable aliases for full backward compatibility across all modules */
  --accent-gold: var(--accent-terracotta);
  --accent-gold-light: #FAF0E8;
  --accent-gold-dark: var(--accent-terracotta-dark);
  --accent-emerald: var(--accent-forest);
  --accent-cyan: var(--accent-navy);

  /* Editorial Borders & Hairlines (Never heavy rounded shadows) */
  --border-light: rgba(31, 32, 34, 0.12);
  --border-hairline: 1px solid rgba(31, 32, 34, 0.12);
  --border-strong: 1px solid rgba(31, 32, 34, 0.25);
  --border-gold: rgba(168, 75, 43, 0.3);
  --border-gold-hover: var(--accent-terracotta);

  /* Physical Paper Elevation */
  --shadow-sm: 0 1px 3px rgba(31, 32, 34, 0.05);
  --shadow-md: 0 4px 12px rgba(31, 32, 34, 0.06);
  --shadow-lg: 0 10px 24px rgba(31, 32, 34, 0.08);
  --shadow-glow: none;         /* Banned neon glow */

  /* Structural Geometry (Crisp, print-like corners) */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-full: 9999px;

  /* Mechanical Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.25s ease-out;
  --transition-slow: 0.4s ease-out;
}

/* Dark Mode (Warm Archival Graphite - Never Pure Black) */
[data-theme="dark"] {
  --bg-primary: #181716;
  --bg-secondary: #1F1E1C;
  --bg-card: #242220;
  --bg-card-subtle: #2A2825;
  --bg-card-hover: #2D2B28;

  --text-main: #EFECE6;
  --text-secondary: #D4D0C7;
  --text-muted: #9E9B93;
  --text-dim: #75726B;

  --accent-terracotta: #D06F4C;
  --accent-forest: #4E7C69;
  --accent-navy: #4B6E8F;
  --accent-gold: var(--accent-terracotta);

  --border-light: rgba(239, 236, 230, 0.12);
  --border-hairline: 1px solid rgba(239, 236, 230, 0.12);
  --border-strong: 1px solid rgba(239, 236, 230, 0.25);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  color: var(--text-main);
  position: relative;
}

/* Tactile Physical Paper Grain Texture Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 99999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Containers */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

.container-narrow {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ==========================================================================
   Editorial Typography & Micro-Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.72;
}

.mono-tag {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-terracotta);
  font-weight: 700;
}

.hairline {
  border: none;
  height: 1px;
  background: var(--border-light);
  margin: 32px 0;
}

.hairline-double {
  border: none;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  height: 4px;
  margin: 32px 0;
}

/* ==========================================================================
   Navigation Header (Broadsheet Masthead)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-normal);
  padding: 0;
}

.site-header.scrolled {
  background: var(--bg-primary);
  box-shadow: 0 2px 10px rgba(31, 32, 34, 0.06);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  padding: 8px 0;
}

.brand-monogram {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--text-main);
  color: var(--bg-primary);
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--text-main);
  flex-shrink: 0;
}

.brand-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--text-main);
  white-space: nowrap;
  line-height: 1.2;
}

.brand-subtitle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  white-space: nowrap;
  margin-top: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 6px 11px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
}

.nav-link:hover {
  color: var(--accent-terracotta);
  background: var(--bg-secondary);
}

.nav-link.active {
  color: var(--accent-terracotta);
  font-weight: 700;
  background: rgba(168, 75, 43, 0.07);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--accent-terracotta);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-toggle span {
  width: 22px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition-fast);
}

/* Mobile Nav Drawer */
.mobile-drawer {
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: var(--bg-primary);
  border-bottom: 2px solid var(--accent-terracotta);
  padding: 24px;
  display: none;
  flex-direction: column;
  gap: 8px;
  z-index: 999;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  max-height: calc(100vh - 72px);
  overflow-y: auto;
}

.mobile-drawer.open {
  display: flex;
}

.mobile-drawer .nav-link {
  padding: 10px 14px;
  font-size: 1rem;
  border-bottom: 1px solid var(--border-light);
}

/* ==========================================================================
   Documentary Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 50px 0 60px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-primary);
}

.hero-glow {
  display: none; /* Strictly kill neon blur orb */
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: start;
  gap: 50px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  background: var(--accent-terracotta-light);
  border: 1px solid rgba(168, 75, 43, 0.25);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--accent-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  width: fit-content;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.1rem;
  font-weight: 700;
  line-height: 1.14;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.hero-title span {
  font-style: italic;
  font-weight: 400;
  color: var(--accent-terracotta);
  display: block;
  font-size: 2.2rem;
  margin-top: 6px;
  background: none;
  -webkit-text-fill-color: initial;
}

.hero-years {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  font-weight: 700;
}

.hero-quote {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-secondary);
  border-left: 3px solid var(--accent-terracotta);
  padding: 4px 0 4px 20px;
  line-height: 1.7;
  background: transparent;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 10px;
  flex-wrap: wrap;
}

/* Mechanical, Scholarly Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--accent-terracotta);
  color: #FFFFFF !important;
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-terracotta);
  box-shadow: none;
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: var(--accent-terracotta-dark);
  border-color: var(--accent-terracotta-dark);
  transform: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--text-main);
  color: var(--text-main);
  transform: none;
}

/* Hero Portrait Frame (New Yorker / National Geographic Editorial Framing) */
.hero-portrait-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
}

.portrait-frame {
  position: relative;
  border: 1px solid var(--border-light);
  background: var(--bg-card);
  padding: 12px;
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-sm);
}

.portrait-frame img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  display: block;
  filter: contrast(1.02);
}

.portrait-caption {
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-muted);
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
  margin-top: 10px;
  font-style: italic;
  text-align: left;
}

/* ==========================================================================
   Vintage Broadsheet Data Bar (Stats Ruler)
   ========================================================================== */
.stats-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-light);
  padding: 28px 0;
  margin-bottom: 60px;
  box-shadow: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-item {
  text-align: center;
  padding: 6px 16px;
  border-right: 1px solid var(--border-light);
}

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

.stat-number {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent-terracotta);
  background: none;
  -webkit-text-fill-color: initial;
}

.stat-label {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 4px;
}

.stat-desc {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 3px;
}

/* ==========================================================================
   Section Headers (Editorial Title Treatment)
   ========================================================================== */
.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 40px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-terracotta);
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.22;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   Cards & Broadsheet Grid (Crisp Hairline Architecture)
   ========================================================================== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 26px;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  backdrop-filter: none;
}

.card:hover {
  transform: none;
  border-color: var(--accent-terracotta);
  background: var(--bg-card);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  color: var(--accent-terracotta);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 16px;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
  line-height: 1.3;
}

.card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 18px;
  flex-grow: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-terracotta);
  transition: gap var(--transition-fast);
}

.card-link:hover {
  gap: 10px;
  color: var(--accent-terracotta-dark);
}

/* ==========================================================================
   Book Cards & Library Shelf Catalog
   ========================================================================== */
.book-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.book-card:hover {
  transform: none;
  border-color: var(--accent-terracotta);
  box-shadow: var(--shadow-md);
}

.book-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--bg-secondary);
  overflow: hidden;
  border-bottom: 1px solid var(--border-light);
}

.book-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-fast);
}

.book-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--text-main);
  border: 1px solid var(--text-main);
  color: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.book-details {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.book-title {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
  line-height: 1.35;
}

.book-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-terracotta);
  margin-bottom: 10px;
  font-weight: 600;
}

.book-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.book-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  width: 100%;
  transition: all var(--transition-fast);
}

.btn-download:hover {
  background: var(--accent-terracotta);
  border-color: var(--accent-terracotta);
  color: #FFFFFF;
}

/* ==========================================================================
   Gallery Grid & Lightbox
   ========================================================================== */
.gallery-filters {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.filter-btn {
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--text-main);
  color: var(--bg-primary);
  border-color: var(--text-main);
  font-weight: 700;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.gallery-item:hover {
  border-color: var(--accent-terracotta);
  transform: none;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.04);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(31, 32, 34, 0.9) 0%, transparent 60%);
  opacity: 0;
  display: flex;
  align-items: flex-end;
  padding: 14px;
  transition: opacity var(--transition-fast);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-caption {
  color: #FFFFFF;
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.4;
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(24, 23, 22, 0.94);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 88vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.lightbox-title {
  color: #EFECE6;
  font-family: var(--font-body);
  font-size: 0.95rem;
  margin-top: 14px;
  text-align: center;
  font-weight: 500;
  line-height: 1.5;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.lightbox-close:hover {
  background: var(--accent-terracotta);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.lightbox-nav:hover {
  background: var(--accent-terracotta);
}

.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

/* ==========================================================================
   Biography & Timeline (Scholarly Chronicle)
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 860px;
  margin: 40px auto;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--border-light);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 16px 36px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-terracotta);
  border: 2px solid var(--bg-primary);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -6px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -6px;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.timeline-card:hover {
  border-color: var(--accent-terracotta);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-terracotta);
  margin-bottom: 4px;
}

.timeline-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.timeline-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   Country Explorer & Search
   ========================================================================== */
.search-box-wrap {
  max-width: 600px;
  margin: 0 auto 36px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 14px 20px 14px 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.96rem;
  font-family: inherit;
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-terracotta);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--text-dim);
}

.country-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.country-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-fast);
}

.country-card:hover {
  border-color: var(--accent-terracotta);
}

.country-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 4px;
}

.country-book {
  font-family: var(--font-serif);
  font-size: 0.86rem;
  color: var(--accent-terracotta);
  font-style: italic;
}

/* ==========================================================================
   Footer (Scholarly Colophon)
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-brand .brand-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  max-width: 340px;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-terracotta);
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  flex-wrap: wrap;
  gap: 14px;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1040px) {
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item:nth-child(2) {
    border-right: none;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 2.1rem;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 16px;
  }
  .stat-item:last-child {
    border-bottom: none;
  }
  .timeline::before {
    left: 18px;
  }
  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding-left: 44px;
    padding-right: 8px;
  }
  .timeline-dot {
    left: 12px !important;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}