:root {
  /* Default Theme: Modern Minimalist / Midnight Galaxy Hybrid */
  --bg-color: #0d1117;
  --bg-card: rgba(22, 27, 34, 0.75);
  --bg-card-hover: rgba(33, 38, 45, 0.95);
  --surface-color: #161b22;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(99, 102, 241, 0.45);
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --accent: #06b6d4;
  --accent-secondary: #f59e0b;
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --glass-shadow: 0 16px 36px 0 rgba(0, 0, 0, 0.4);
}

/* 10 Theme Factory Themes applied via data-theme attribute */
[data-theme="modern-minimalist"] {
  --bg-color: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #ffffff;
  --surface-color: #ffffff;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-glow: rgba(79, 70, 229, 0.3);
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --primary: #4f46e5;
  --primary-light: #6366f1;
  --primary-dark: #3730a3;
  --accent: #06b6d4;
  --accent-secondary: #f59e0b;
}

[data-theme="midnight-galaxy"] {
  --bg-color: #161022;
  --bg-card: rgba(43, 30, 62, 0.7);
  --bg-card-hover: rgba(56, 38, 80, 0.9);
  --surface-color: #2b1e3e;
  --border-color: rgba(164, 144, 194, 0.2);
  --border-glow: rgba(167, 139, 250, 0.5);
  --text-primary: #f5f3ff;
  --text-secondary: #a490c2;
  --text-muted: #7c6899;
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --primary-dark: #5b21b6;
  --accent: #c084fc;
  --accent-secondary: #f472b6;
}

[data-theme="ocean-depths"] {
  --bg-color: #0b1329;
  --bg-card: rgba(20, 32, 60, 0.75);
  --bg-card-hover: rgba(28, 45, 84, 0.9);
  --surface-color: #1e293b;
  --border-color: rgba(56, 189, 248, 0.15);
  --border-glow: rgba(14, 165, 233, 0.5);
  --text-primary: #f0f9ff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --primary: #0ea5e9;
  --primary-light: #38bdf8;
  --primary-dark: #0284c7;
  --accent: #06b6d4;
  --accent-secondary: #3b82f6;
}

[data-theme="sunset-boulevard"] {
  --bg-color: #1c1018;
  --bg-card: rgba(48, 24, 40, 0.75);
  --bg-card-hover: rgba(68, 32, 56, 0.9);
  --surface-color: #301828;
  --border-color: rgba(244, 114, 182, 0.2);
  --border-glow: rgba(225, 29, 72, 0.5);
  --text-primary: #fff1f2;
  --text-secondary: #f472b6;
  --text-muted: #fb7185;
  --primary: #e11d48;
  --primary-light: #fb7185;
  --primary-dark: #be123c;
  --accent: #fb923c;
  --accent-secondary: #f43f5e;
}

[data-theme="forest-canopy"] {
  --bg-color: #0d1a14;
  --bg-card: rgba(24, 44, 34, 0.75);
  --bg-card-hover: rgba(34, 62, 48, 0.9);
  --surface-color: #182c22;
  --border-color: rgba(52, 211, 153, 0.2);
  --border-glow: rgba(16, 185, 129, 0.5);
  --text-primary: #ecfdf5;
  --text-secondary: #6ee7b7;
  --text-muted: #34d399;
  --primary: #10b981;
  --primary-light: #34d399;
  --primary-dark: #059669;
  --accent: #2dd4bf;
  --accent-secondary: #84cc16;
}

[data-theme="tech-innovation"] {
  --bg-color: #080c14;
  --bg-card: rgba(15, 23, 42, 0.8);
  --bg-card-hover: rgba(30, 41, 59, 0.95);
  --surface-color: #0f172a;
  --border-color: rgba(6, 182, 212, 0.25);
  --border-glow: rgba(6, 182, 212, 0.5);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --primary: #0284c7;
  --primary-light: #38bdf8;
  --primary-dark: #0369a1;
  --accent: #06b6d4;
  --accent-secondary: #8b5cf6;
}

[data-theme="golden-hour"] {
  --bg-color: #1a140d;
  --bg-card: rgba(48, 36, 22, 0.75);
  --bg-card-hover: rgba(68, 50, 30, 0.9);
  --surface-color: #302416;
  --border-color: rgba(245, 158, 11, 0.25);
  --border-glow: rgba(217, 119, 6, 0.5);
  --text-primary: #fef3c7;
  --text-secondary: #fcd34d;
  --text-muted: #f59e0b;
  --primary: #d97706;
  --primary-light: #f59e0b;
  --primary-dark: #b45309;
  --accent: #eab308;
  --accent-secondary: #ea580c;
}

[data-theme="arctic-frost"] {
  --bg-color: #f0f9ff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #ffffff;
  --surface-color: #ffffff;
  --border-color: rgba(2, 132, 199, 0.15);
  --border-glow: rgba(56, 189, 248, 0.4);
  --text-primary: #0c4a6e;
  --text-secondary: #0369a1;
  --text-muted: #0284c7;
  --primary: #0284c7;
  --primary-light: #38bdf8;
  --primary-dark: #0369a1;
  --accent: #0ea5e9;
  --accent-secondary: #38bdf8;
}

[data-theme="desert-rose"] {
  --bg-color: #fff5f5;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --surface-color: #ffffff;
  --border-color: rgba(219, 39, 119, 0.15);
  --border-glow: rgba(244, 114, 182, 0.4);
  --text-primary: #881337;
  --text-secondary: #be185d;
  --text-muted: #db2777;
  --primary: #db2777;
  --primary-light: #f472b6;
  --primary-dark: #be185d;
  --accent: #fb7185;
  --accent-secondary: #fda4af;
}

[data-theme="botanical-garden"] {
  --bg-color: #f2fbf5;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --surface-color: #ffffff;
  --border-color: rgba(16, 185, 129, 0.15);
  --border-glow: rgba(52, 211, 153, 0.4);
  --text-primary: #064e3b;
  --text-secondary: #047857;
  --text-muted: #059669;
  --primary: #059669;
  --primary-light: #34d399;
  --primary-dark: #065f46;
  --accent: #10b981;
  --accent-secondary: #6ee7b7;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 700;
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 20px;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(245, 158, 11, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 65%, rgba(6, 182, 212, 0.12) 0%, transparent 55%),
    radial-gradient(circle at 80% 85%, rgba(168, 85, 247, 0.14) 0%, transparent 50%);
  background-attachment: fixed;
  background-size: 100% 100%;
  transition: background-color 0.4s ease, color 0.4s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(13, 17, 23, 0.8);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 0;
  transition: var(--transition);
}

[data-theme="modern-minimalist"] .navbar,
[data-theme="arctic-frost"] .navbar,
[data-theme="desert-rose"] .navbar,
[data-theme="botanical-garden"] .navbar {
  background: rgba(255, 255, 255, 0.85);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
}

.nav-logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  filter: drop-shadow(0 4px 10px rgba(99, 102, 241, 0.4));
  transition: var(--transition);
}

.nav-logo:hover img {
  transform: rotate(10deg) scale(1.05);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Theme Dropdown in Navbar */
.theme-picker-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 4px 10px;
}

.theme-picker-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.theme-select {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
}

.theme-select option {
  background: #1f2937;
  color: #fff;
}

.portal-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.2));
  border: 1px solid var(--border-glow);
  color: var(--text-primary);
  padding: 7px 15px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.portal-nav-btn:hover {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 0 20px var(--border-glow);
  transform: translateY(-2px);
}

/* Lang Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 3px;
  gap: 4px;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 5px 10px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 20px;
  transition: var(--transition);
  user-select: none;
}

.lang-btn .flag-img {
  width: 18px;
  height: 13px;
  object-fit: cover;
  border-radius: 2px;
  display: block;
}

.lang-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
}

.lang-btn.active {
  background: var(--primary-dark, #0369a1);
  color: #ffffff;
  border: 1px solid var(--primary-light, #38bdf8);
  box-shadow: 0 2px 10px var(--border-glow);
  font-weight: 700;
}

/* Hero Section */
.hero {
  padding: 70px 0 50px;
  text-align: center;
  position: relative;
}

.cat-mascot-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: 24px;
}

.cat-mascot {
  width: 110px;
  height: 110px;
  background: linear-gradient(135deg, var(--primary-dark), var(--surface-color));
  border: 2px solid var(--border-glow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  box-shadow: 0 0 35px var(--border-glow);
  animation: float 4s ease-in-out infinite;
  user-select: none;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.cat-badge {
  position: absolute;
  bottom: -4px;
  right: -4px;
  background: var(--accent-secondary);
  color: #000;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(4deg); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 20px;
  background: linear-gradient(to right, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 36px;
  font-weight: 400;
}

/* Zero Resource Banner */
.zero-resource-banner {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 20px;
  padding: 24px 32px;
  max-width: 860px;
  margin: 0 auto 40px;
  display: flex;
  align-items: center;
  gap: 24px;
  text-align: left;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px -10px rgba(16, 185, 129, 0.2);
  transition: var(--transition);
}

.zero-resource-banner:hover {
  border-color: #10b981;
  transform: translateY(-2px);
}

.zero-res-icon {
  font-size: 2.8rem;
  background: rgba(16, 185, 129, 0.2);
  width: 72px;
  height: 72px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.zero-res-content h2,
.zero-res-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #10b981;
  margin-bottom: 6px;
}

.zero-res-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* CTA Buttons */
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 10px 25px -5px var(--border-glow);
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px -5px var(--border-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 1.05rem;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.btn-interactive {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(168, 85, 247, 0.25));
  border: 1px solid var(--border-glow);
  color: var(--text-primary);
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-interactive:hover {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 0 25px var(--border-glow);
}

/* Stats Pills Showcase */
.stats-pills {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.stat-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 12px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

.stat-pill:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--border-glow);
}

.stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.2;
}

.glow-green { color: #10b981; }
.glow-cyan { color: var(--accent); }
.glow-purple { color: var(--primary-light); }
.glow-amber { color: var(--accent-secondary); }

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 4px;
}

/* Theme Selector Showcase Section */
.theme-showcase-section {
  padding: 40px 0;
  text-align: center;
}

.themes-palette-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  max-width: 900px;
  margin: 20px auto 0;
}

.theme-chip-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.theme-chip-btn:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.theme-chip-btn.active {
  background: var(--primary-dark, #0369a1);
  color: #ffffff;
  border-color: var(--primary-light, #38bdf8);
  box-shadow: 0 0 15px var(--border-glow);
  font-weight: 700;
}

.theme-swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: inline-block;
}

/* Screenshot Preview Showcase & Simulator */
.preview-section {
  padding: 30px 0 70px;
  text-align: center;
}

/* Vitrin: Ayar Penceresi ve Kalıcı Canlı Simülatör (Yan Yana Grid) */
.dual-showcase-grid {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(360px, 1fr);
  gap: 28px;
  align-items: stretch;
  max-width: 1140px;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .dual-showcase-grid {
    grid-template-columns: 1fr;
  }
}

.glow-card {
  box-shadow: 0 20px 50px -10px var(--border-glow) !important;
}

.preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 16px;
  box-shadow: var(--glass-shadow);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.preview-card:hover {
  border-color: var(--border-glow);
}

.app-window-card {
  align-self: center;
}

.live-sim-card {
  min-height: 520px;
}

.mac-window-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.bar-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #eab308; }
.dot-green { background: #22c55e; }

.window-title {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.live-pulse-badge {
  font-size: 0.7rem;
  font-weight: 800;
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.4);
  padding: 2px 8px;
  border-radius: 12px;
  letter-spacing: 0.5px;
  animation: pulseBadge 2s infinite ease-in-out;
}

@keyframes pulseBadge {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.96); }
}

.preview-inner {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--surface-color);
  padding: 12px;
}

.preview-img {
  max-width: 100%;
  width: auto;
  height: auto;
  aspect-ratio: 376 / 473;
  max-height: 480px;
  object-fit: contain;
  border-radius: 12px;
  display: block;
  margin: 0 auto;
}

/* Kalıcı Canlı Duvar Kağıdı Görüntüleyici */
.sim-wallpaper-view {
  flex: 1;
  position: relative;
  background: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 380px;
  width: 100%;
  border-radius: 16px;
}

.sim-wallpaper-loader {
  position: absolute;
  color: #f8fafc;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  padding: 10px 20px;
  border-radius: 12px;
  border: 1px solid var(--border-glow);
  font-size: 0.95rem;
  font-weight: 700;
  z-index: 5;
  display: none;
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}

.sim-img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.sim-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px;
  background: var(--surface-color);
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.sim-tag-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.sim-tag-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.sim-tag-btn.active {
  background: var(--primary-dark, #0369a1);
  border-color: var(--primary-light, #38bdf8);
  color: #ffffff;
  box-shadow: 0 0 15px var(--border-glow);
  font-weight: 700;
}

.sim-next-btn {
  padding: 8px 18px !important;
  font-size: 0.9rem !important;
}

/* Feature Grid */
.features-section {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.section-desc {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px;
  transition: var(--transition);
  position: relative;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-5px);
  box-shadow: var(--glass-shadow);
}

.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary-light);
}

.feature-card h4,
.feature-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Sources Showcase */
.sources-section {
  padding: 60px 0 80px;
}

.sources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.source-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}

.source-item:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

.source-emoji {
  font-size: 2.2rem;
  margin-bottom: 8px;
  display: block;
}

.source-item h5,
.source-item-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.source-item span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Portal Banner */
.portal-banner {
  background: linear-gradient(135deg, var(--surface-color), var(--bg-card));
  border: 1px solid var(--border-glow);
  border-radius: 24px;
  padding: 48px;
  text-align: center;
  margin: 40px 0 80px;
  position: relative;
  overflow: hidden;
}

.portal-banner h2,
.portal-banner-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.portal-banner p {
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 28px;
  font-size: 1.05rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer a {
  color: var(--primary-light);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.3rem;
  }
  .zero-resource-banner {
    flex-direction: column;
    text-align: center;
    padding: 20px;
  }
  .zero-res-icon {
    margin: 0 auto;
  }
  .nav-container {
    flex-direction: column;
    gap: 14px;
  }
}