/* ==========================================================================
   JSango Landing Page - Design System & Modern Aesthetics
   ========================================================================== */

:root {
  --bg-main: #060911;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-surface: #0b1120;
  --bg-surface-elevated: #111827;
  --bg-code: #030712;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);
  --border-emerald: rgba(16, 185, 129, 0.4);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-highlight: #38bdf8;

  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  --accent-indigo: #6366f1;
  --accent-indigo-glow: rgba(99, 102, 241, 0.25);
  --accent-cyan: #06b6d4;
  --accent-pink: #ec4899;
  --accent-amber: #f59e0b;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 50px -10px var(--accent-indigo-glow);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Ambient Background Blobs */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.blob-1 {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.18) 0%, rgba(16, 185, 129, 0.08) 50%, transparent 70%);
  filter: blur(80px);
  animation: pulse-slow 12s infinite alternate ease-in-out;
}

.blob-2 {
  position: absolute;
  top: 40%;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, rgba(99, 102, 241, 0.05) 50%, transparent 70%);
  filter: blur(100px);
}

.blob-3 {
  position: absolute;
  bottom: 10%;
  left: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, rgba(99, 102, 241, 0.05) 50%, transparent 70%);
  filter: blur(110px);
}

@keyframes pulse-slow {
  0% { opacity: 0.8; transform: translateX(-50%) scale(1); }
  100% { opacity: 1; transform: translateX(-50%) scale(1.1); }
}

/* Grid overlay background */
.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Navigation Bar (Professional 3-Column Layout)
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(6, 9, 17, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
}

/* 1. Left: Brand & Logo */
.nav-left {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  filter: drop-shadow(0 2px 8px rgba(16, 185, 129, 0.35));
}

.brand-name {
  color: #ffffff;
}

.brand-badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  background: rgba(99, 102, 241, 0.12);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

/* 2. Center: Navigation Links */
.nav-center {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 6px 0;
  transition: color 0.2s ease, text-shadow 0.2s ease;
  position: relative;
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link.nav-link-docs {
  color: #38bdf8;
  font-weight: 600;
}

.nav-link.nav-link-docs:hover {
  color: #7dd3fc;
  text-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
}

.mobile-nav-actions {
  display: none;
}

/* 3. Right: Actions & CTAs */
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary.desktop-only {
  height: 36px;
  padding: 0 16px;
  font-size: 0.86rem;
  border-radius: var(--radius-sm);
}

.mobile-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  width: 38px;
  height: 38px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.mobile-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
}

.hamburger-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

/* Animated Hamburger to X */
.mobile-toggle.open .hamburger-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-toggle.open .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-toggle.open .hamburger-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(16, 185, 129, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

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

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  color: #34d399;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-pill .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 65%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 780px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.quick-install {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(3, 7, 18, 0.8);
  border: 1px solid var(--border-subtle);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #cbd5e1;
  box-shadow: var(--shadow-card);
}

.quick-install code {
  color: #38bdf8;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.copy-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   Interactive Hero Code Showcase
   ========================================================================== */
.hero-showcase {
  margin-top: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), var(--shadow-glow);
  backdrop-filter: blur(20px);
  text-align: left;
}

.showcase-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(3, 7, 18, 0.6);
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 12px;
}

.window-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.showcase-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.showcase-body {
  position: relative;
}

.code-pane {
  display: none;
  padding: 24px;
  background: var(--bg-code);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
}

.code-pane.active {
  display: block;
}

pre {
  margin: 0;
}

/* Syntax Highlighting Colors */
.hl-kw { color: #f43f5e; font-weight: 600; }
.hl-fn { color: #38bdf8; }
.hl-str { color: #34d399; }
.hl-var { color: #f1f5f9; }
.hl-prop { color: #cbd5e1; }
.hl-num { color: #fbbf24; }
.hl-comm { color: #64748b; font-style: italic; }
.hl-type { color: #c084fc; }

/* ==========================================================================
   Value Props / Highlights Grid
   ========================================================================== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-emerald);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.5), 0 0 25px rgba(99, 102, 241, 0.15);
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.icon-emerald { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.icon-indigo { background: rgba(99, 102, 241, 0.15); color: #818cf8; border: 1px solid rgba(99, 102, 241, 0.3); }
.icon-cyan { background: rgba(6, 182, 212, 0.15); color: #22d3ee; border: 1px solid rgba(6, 182, 212, 0.3); }
.icon-pink { background: rgba(236, 72, 153, 0.15); color: #f472b6; border: 1px solid rgba(236, 72, 153, 0.3); }
.icon-amber { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.icon-purple { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }

.feature-card h3 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

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

.feature-list li {
  font-size: 0.86rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-list li span.check {
  color: #10b981;
  font-weight: bold;
}

/* ==========================================================================
   Interactive Architecture Explorer
   ========================================================================== */
.arch-explorer {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
  backdrop-filter: blur(16px);
}

.arch-layers-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.arch-layer-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.arch-layer-item:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.2);
}

.arch-layer-item.active {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--accent-indigo);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.25);
}

.layer-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.layer-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  width: 20px;
}

.layer-name {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-primary);
}

.layer-package {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
}

.arch-layer-detail {
  background: var(--bg-code);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.detail-header h4 {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.detail-header p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 20px;
}

.detail-code {
  background: rgba(0, 0, 0, 0.5);
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   Benchmark Visualizer Section
   ========================================================================== */
.benchmark-container {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
  backdrop-filter: blur(16px);
}

.benchmark-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 36px;
}

.stat-box {
  background: rgba(3, 7, 18, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}

.stat-val {
  font-family: var(--font-sans);
  font-size: 2.4rem;
  font-weight: 800;
  color: #34d399;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.benchmark-bars {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.bar-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bar-label-group {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: 600;
}

.bar-label-group .jsango-tag {
  color: #10b981;
  display: flex;
  align-items: center;
  gap: 6px;
}

.bar-track {
  height: 28px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  transition: width 1s ease-out;
}

.bar-fill.jsango {
  background: linear-gradient(90deg, #10b981, #06b6d4);
  color: #030712;
}

.bar-fill.fastify {
  background: #64748b;
  color: #f8fafc;
}

.bar-fill.express {
  background: #475569;
  color: #cbd5e1;
}

/* ==========================================================================
   Package Directory Explorer
   ========================================================================== */
.package-explorer-controls {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.search-input {
  background: rgba(3, 7, 18, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  min-width: 280px;
  outline: none;
  transition: var(--transition);
}

.search-input:focus {
  border-color: var(--accent-indigo);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
}

.package-filter-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.filter-tag:hover, .filter-tag.active {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--accent-indigo);
  color: var(--text-primary);
}

.packages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.pkg-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pkg-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-2px);
}

.pkg-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.pkg-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: #38bdf8;
}

.pkg-category {
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
}

.pkg-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   Quickstart & CTA Section
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(16, 185, 129, 0.15) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.cta-banner h2 {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-main);
  padding: 60px 0 30px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

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

.footer-brand p {
  margin-top: 12px;
  max-width: 320px;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.footer-column h4 {
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

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

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--accent-emerald);
  color: #f8fafc;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(12px);
}

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

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
/* ==========================================================================
   Responsive Breakpoints & Mobile Optimization
   ========================================================================== */
@media (max-width: 1024px) {
  .desktop-only {
    display: none !important;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-container {
    padding: 0 18px;
  }

  #navLinksWrapper,
  .nav-center {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    background: rgba(6, 9, 17, 0.98);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 20px 18px 32px;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 999;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.9);
  }

  #navLinksWrapper.open,
  .nav-center.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 12px 16px;
    font-size: 0.98rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
  }

  .nav-link:hover, .nav-link.nav-link-docs {
    background: rgba(99, 102, 241, 0.14);
    border-color: rgba(99, 102, 241, 0.35);
  }

  .mobile-nav-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border-subtle);
  }

  .mobile-nav-actions .mobile-action-btn {
    width: 100%;
    justify-content: center;
    padding: 12px 18px;
    font-size: 0.92rem;
  }
}

@media (max-width: 900px) {
  .hero-section {
    padding: 50px 0 40px;
  }

  .arch-explorer {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .arch-layers-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 8px;
  }

  .arch-layer-item {
    padding: 12px 14px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 14px;
  }

  .hero-pill {
    padding: 6px 12px;
    font-size: 0.76rem;
    max-width: 100%;
    white-space: normal;
    text-align: center;
  }

  .hero-title {
    font-size: 2.1rem;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
  }

  .hero-subtitle {
    font-size: 0.98rem;
    margin-bottom: 24px;
    padding: 0 4px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
  }

  .quick-install {
    width: 100%;
    justify-content: space-between;
    font-size: 0.82rem;
    padding: 10px 14px;
  }

  .hero-showcase {
    margin-top: 24px;
    border-radius: var(--radius-lg);
  }

  .showcase-header {
    padding: 10px 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .showcase-tabs {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
  }

  .showcase-tabs::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    padding: 6px 10px;
    font-size: 0.78rem;
    flex-shrink: 0;
  }

  .code-pane pre {
    padding: 16px 12px;
    font-size: 0.78rem;
    line-height: 1.5;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .section {
    padding: 50px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-desc {
    font-size: 0.94rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-card {
    padding: 22px 18px;
  }

  .arch-layers-list {
    grid-template-columns: 1fr;
  }

  .benchmark-stats-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .benchmark-stat-card {
    padding: 18px 14px;
  }

  .benchmark-stat-num {
    font-size: 2rem;
  }

  .package-filter-tags {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex-wrap: nowrap;
    width: 100%;
    padding-bottom: 6px;
  }

  .package-filter-tags::-webkit-scrollbar {
    display: none;
  }

  .filter-tag {
    flex-shrink: 0;
    font-size: 0.8rem;
    padding: 6px 12px;
  }

  .packages-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
}

/* ==========================================================================
   Accessibility: keyboard focus, skip link & reduced motion
   ========================================================================== */
:focus-visible {
  outline: 2px solid var(--accent-indigo);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 2000;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--accent-indigo);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}