/* CodeAlloy Official Brand Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Outfit:wght@500;600;700;800;900&display=swap');

:root {
  --bg-wrought: #121316;
  --bg-surface: #181A20;
  --bg-card: #1E2028;
  --bg-card-hover: #242732;
  --border-subtle: #2A2E3B;
  --border-highlight: #3D4255;
  
  --forge-white-hot: #FFF5B8;
  --forge-amber: #FF8C00;
  --forge-amber-glow: rgba(255, 140, 0, 0.25);
  --forge-amber-intense: rgba(255, 140, 0, 0.45);
  --forge-gold: #FFAE19;
  --forge-ember: #D9381E;
  --quench-emerald: #10B981;
  --quench-emerald-glow: rgba(16, 185, 129, 0.25);
  --steel-cyan: #78DCE8;
  --steel-purple: #AB9DF2;

  --text-pure: #FCFCFA;
  --text-main: #E2E4EB;
  --text-muted: #9DA3B4;
  --text-dim: #656B7D;

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-code: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--border-subtle);
  --shadow-glow: 0 0 40px -10px var(--forge-amber-glow);
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-wrought);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 50% -10%, rgba(255, 140, 0, 0.12) 0%, transparent 60%),
    radial-gradient(circle at 10% 40%, rgba(217, 56, 30, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 90% 70%, rgba(255, 174, 25, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
}

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

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(18, 19, 22, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

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

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-pure);
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  box-shadow: 0 0 16px var(--forge-amber-glow);
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #FFF5B8 0%, #FF8C00 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-pure);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #FF9E00 0%, #E66A00 100%);
  color: #121316;
  font-weight: 700;
  box-shadow: 0 4px 18px var(--forge-amber-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px var(--forge-amber-intense);
  background: linear-gradient(135deg, #FFAE19 0%, #FF8C00 100%);
}

.btn-secondary {
  background: var(--bg-card);
  border-color: var(--border-subtle);
  color: var(--text-main);
}

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

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 140, 0, 0.1);
  border: 1px solid rgba(255, 140, 0, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--forge-gold);
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--quench-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--quench-emerald);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-pure);
  max-width: 900px;
  margin: 0 auto 20px;
}

.hero-title .glow-text {
  background: linear-gradient(135deg, #FFF5B8 0%, #FF8C00 60%, #FFAE19 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
}

/* Download CTA & Dropdown */
.cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.download-split {
  position: relative;
  display: inline-flex;
}

.btn-download-primary {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: 1px solid rgba(0, 0, 0, 0.2);
}

.btn-download-dropdown {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  padding: 14px 14px;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  min-width: 260px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
  padding: 8px;
  display: none;
  flex-direction: column;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.dropdown-menu.show {
  display: flex;
}

.dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-pure);
}

.dropdown-item small {
  color: var(--text-dim);
}

.release-meta {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.release-meta a {
  color: var(--forge-gold);
  text-decoration: none;
}

.release-meta a:hover {
  text-decoration: underline;
}

/* Hero Showcase Image */
.hero-visual {
  margin-top: 50px;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 60px -15px rgba(0, 0, 0, 0.9), 0 0 0 1px var(--border-subtle);
}

.hero-banner-img {
  width: 100%;
  height: auto;
  display: block;
}

/* Interactive Simulator Section */
.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-kicker {
  font-family: var(--font-code);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--forge-amber);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-pure);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Autonomy Dial Widget */
.autonomy-widget {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 36px;
  align-items: center;
}

.autonomy-selector-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.autonomy-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.autonomy-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.autonomy-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-pure);
  border-color: var(--border-highlight);
}

.autonomy-btn.active {
  background: rgba(255, 140, 0, 0.12);
  border-color: var(--forge-amber);
  color: var(--text-pure);
  box-shadow: 0 0 20px -5px var(--forge-amber-glow);
}

.autonomy-level-tag {
  font-family: var(--font-code);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
}

.autonomy-btn.active .autonomy-level-tag {
  background: var(--forge-amber);
  color: #121316;
}

/* Simulator Preview Box */
.sim-preview-box {
  background: #14151A;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-family: var(--font-code);
}

.sim-window-header {
  background: #191B21;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #343847;
}

.sim-body {
  padding: 24px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sim-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.sim-badge.safe {
  background: rgba(16, 185, 129, 0.15);
  color: var(--quench-emerald);
  border: 1px solid var(--quench-emerald);
}

.sim-badge.supervised {
  background: rgba(255, 140, 0, 0.15);
  color: var(--forge-gold);
  border: 1px solid var(--forge-amber);
}

.sim-badge.guarded {
  background: rgba(120, 220, 232, 0.15);
  color: var(--steel-cyan);
  border: 1px solid var(--steel-cyan);
}

.sim-badge.autonomous {
  background: rgba(171, 157, 242, 0.15);
  color: var(--steel-purple);
  border: 1px solid var(--steel-purple);
}

.sim-heading {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--text-pure);
  margin-bottom: 10px;
}

.sim-text {
  font-family: var(--font-body);
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.sim-action-card {
  background: #1B1D24;
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-md);
  padding: 16px;
  font-size: 0.85rem;
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition-smooth);
}

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

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 140, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  color: var(--forge-amber);
  border: 1px solid rgba(255, 140, 0, 0.2);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--text-pure);
  margin-bottom: 10px;
  font-weight: 700;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Inline Diff Simulator */
.diff-viewer {
  background: #15161B;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px;
  font-family: var(--font-code);
  font-size: 0.88rem;
  line-height: 1.7;
}

.diff-line {
  padding: 2px 10px;
  border-radius: 4px;
  margin-bottom: 2px;
  display: flex;
  gap: 12px;
}

.diff-line.del {
  background: rgba(224, 108, 117, 0.18);
  color: #E06C75;
  text-decoration: line-through;
}

.diff-line.add {
  background: rgba(78, 189, 121, 0.18);
  color: #4EBD79;
}

.diff-line.context {
  color: var(--text-dim);
}

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

/* Downloads Matrix */
.downloads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.download-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all var(--transition-smooth);
}

.download-card:hover {
  transform: translateY(-4px);
  border-color: var(--forge-amber);
  box-shadow: var(--shadow-card);
}

.download-os-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}

.download-os-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 8px;
}

.download-os-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.download-btn-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Join the Forge / Contribute Section */
.contribute-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.contribute-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
}

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

.contribute-card.highlight {
  border-color: rgba(255, 140, 0, 0.4);
  background: linear-gradient(180deg, rgba(255, 140, 0, 0.05) 0%, var(--bg-surface) 100%);
}

.contribute-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.contribute-role-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 12px;
}

.contribute-role-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

.contribute-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
  flex-grow: 1;
}

.contribute-list li {
  font-size: 0.9rem;
  color: var(--text-main);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px;
  background: var(--bg-wrought);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Responsive */
@media (max-width: 900px) {
  .autonomy-widget {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.4rem;
  }
  .section {
    padding: 60px 0;
  }
}