/* ========================================
   Zarch Repository — Premium Dark Theme
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- Design Tokens ---------- */
:root {
  --bg-primary: #07090e;
  --bg-secondary: #0d1117;
  --bg-card: #111820;
  --bg-card-hover: #151d28;
  --bg-glass: rgba(17, 24, 32, 0.65);
  --bg-input: #0d1117;

  --border: rgba(56, 189, 248, 0.08);
  --border-glow: rgba(56, 189, 248, 0.2);
  --border-accent: rgba(99, 102, 241, 0.3);

  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-heading: #f1f5f9;

  --accent-blue: #38bdf8;
  --accent-cyan: #22d3ee;
  --accent-indigo: #818cf8;
  --accent-purple: #a78bfa;
  --accent-green: #34d399;
  --accent-orange: #fb923c;

  --gradient-hero: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #a78bfa 100%);
  --gradient-card: linear-gradient(135deg, rgba(56, 189, 248, 0.05) 0%, rgba(129, 140, 248, 0.05) 100%);
  --gradient-glow: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(56, 189, 248, 0.06), transparent 40%);

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(56, 189, 248, 0.08);
  --shadow-glow-hover: 0 0 60px rgba(56, 189, 248, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--accent-cyan);
}

/* ---------- Background Glow ---------- */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--gradient-glow);
  pointer-events: none;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* ---------- Navbar ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 2rem;
  background: rgba(7, 9, 14, 0.8);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  font-weight: 800;
  font-size: 1.1rem;
  color: #07090e;
  letter-spacing: -0.5px;
}

.navbar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.3px;
}

.navbar-subtitle {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-link {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.navbar-link:hover {
  color: var(--text-primary);
  background: rgba(56, 189, 248, 0.08);
}

.navbar-link.active {
  color: var(--accent-blue);
  background: rgba(56, 189, 248, 0.1);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 5rem 2rem 4rem;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(56, 189, 248, 0.08) 0%, rgba(129, 140, 248, 0.04) 40%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  margin-bottom: 1.5rem;
  border-radius: 50px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.15);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent-blue);
  letter-spacing: 0.3px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 1rem;
  color: var(--text-heading);
}

.hero h1 .gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  max-width: 560px;
  margin: 0 auto 2.5rem;
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-blue);
  letter-spacing: -0.5px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

/* ---------- Section ---------- */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.section-header {
  margin-bottom: 2rem;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-indigo);
  margin-bottom: 0.6rem;
}

.section-label svg {
  width: 14px;
  height: 14px;
}

.section-title {
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-heading);
}

.section-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-top: 0.4rem;
}

/* ---------- Config Card ---------- */
.config-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.config-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.config-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(56, 189, 248, 0.02);
}

.config-card-header-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

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

.config-card-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.config-card-dots span:nth-child(1) { background: #f87171; }
.config-card-dots span:nth-child(2) { background: #fbbf24; }
.config-card-dots span:nth-child(3) { background: #34d399; }

.config-card-filename {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.config-card-body {
  padding: 1.5rem;
}

.config-card-body pre {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--text-primary);
  white-space: pre;
  overflow-x: auto;
}

.config-card-body .comment {
  color: var(--text-muted);
}

.config-card-body .key {
  color: var(--accent-indigo);
}

.config-card-body .value {
  color: var(--accent-cyan);
}

.config-card-body .bracket {
  color: var(--accent-blue);
  font-weight: 600;
}

/* ---------- Copy Button ---------- */
.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.06);
  color: var(--accent-blue);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-copy:hover {
  background: rgba(56, 189, 248, 0.12);
  border-color: var(--accent-blue);
}

.btn-copy.copied {
  color: var(--accent-green);
  border-color: rgba(52, 211, 153, 0.3);
  background: rgba(52, 211, 153, 0.08);
}

.btn-copy svg {
  width: 14px;
  height: 14px;
}

/* ---------- Search & Filters ---------- */
.search-bar-wrapper {
  position: relative;
  margin-bottom: 1.5rem;
}

.search-bar {
  width: 100%;
  padding: 0.9rem 1.2rem 0.9rem 3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  transition: all var(--transition-fast);
  outline: none;
}

.search-bar::placeholder {
  color: var(--text-muted);
}

.search-bar:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-icon svg {
  width: 18px;
  height: 18px;
}

.search-count {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.filter-chips {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.filter-chip {
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-chip:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
}

.filter-chip.active {
  border-color: var(--accent-blue);
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-blue);
}

/* ---------- Package Grid ---------- */
.package-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}

.package-card {
  position: relative;
  padding: 1.25rem 1.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: default;
  overflow: hidden;
}

.package-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.package-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.package-card:hover::before {
  opacity: 1;
}

.package-card-inner {
  position: relative;
  z-index: 1;
}

.package-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.package-name .pkg-icon {
  width: 20px;
  height: 20px;
  color: var(--accent-blue);
  flex-shrink: 0;
}

.package-version {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: 50px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  background: rgba(129, 140, 248, 0.1);
  color: var(--accent-indigo);
  border: 1px solid rgba(129, 140, 248, 0.15);
}

.package-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

.package-meta-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.package-meta-item svg {
  width: 14px;
  height: 14px;
}

.package-meta-item .arch-badge {
  color: var(--accent-cyan);
}

.package-meta-item .size-badge {
  color: var(--accent-orange);
}

.package-download {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.85rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.06);
  border: 1px solid rgba(56, 189, 248, 0.12);
  color: var(--accent-blue);
  font-size: 0.78rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.package-download:hover {
  background: rgba(56, 189, 248, 0.12);
  border-color: rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
}

.package-download svg {
  width: 14px;
  height: 14px;
}

/* ---------- No Results ---------- */
.no-results {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.no-results svg {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  opacity: 0.4;
}

.no-results h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.no-results p {
  font-size: 0.85rem;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid rgba(52, 211, 153, 0.25);
  color: var(--accent-green);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-smooth);
  pointer-events: none;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---------- Footer ---------- */
.footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-text {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-text a {
  color: var(--accent-blue);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-primary);
}

/* ---------- Animations ---------- */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fade-in-up 0.6s var(--transition-smooth) both;
}

.animate-delay-1 { animation-delay: 100ms; }
.animate-delay-2 { animation-delay: 200ms; }
.animate-delay-3 { animation-delay: 300ms; }
.animate-delay-4 { animation-delay: 400ms; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .navbar {
    padding: 0.7rem 1rem;
  }

  .navbar-links {
    display: none;
  }

  .hero {
    padding: 3rem 1.2rem 2.5rem;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .section {
    padding: 2rem 1.2rem;
  }

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

  .footer {
    flex-direction: column;
    text-align: center;
  }

  .config-card-header {
    flex-direction: column;
    gap: 0.6rem;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-desc {
    font-size: 0.92rem;
  }

  .package-card {
    padding: 1rem;
  }
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(56, 189, 248, 0.15);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(56, 189, 248, 0.25);
}