/* ==========================================================================
   QuantDB Modern Light Glassmorphism Tech Design System (2026 Edition)
   ========================================================================== */

:root {
  /* Color Palette - Radiant Light Tech Theme */
  --bg-page: #f8fafc;
  --bg-soft: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.7);
  --bg-code: #0f172a;
  --bg-nav: rgba(255, 255, 255, 0.88);

  /* Accents & Primary Tech Colors */
  --brand: #0284c7;
  --brand-hover: #0369a1;
  --brand-light: #e0f2fe;
  --accent: #2563eb;
  --accent-light: #dbeafe;
  --accent-indigo: #4f46e5;
  --accent-purple: #7c3aed;

  /* Functional Colors */
  --green: #059669;
  --green-bg: #d1fae5;
  --green-border: #a7f3d0;
  --blue: #0284c7;
  --blue-bg: #e0f2fe;
  --orange: #d97706;
  --orange-bg: #fef3c7;
  --red: #dc2626;
  --red-bg: #fee2e2;
  --purple: #7c3aed;
  --purple-bg: #ede9fe;

  /* Typography Colors */
  --text: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;
  --text-dim: #94a3b8;

  --font-sans: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;

  /* Geometry & Glassmorphism Attributes */
  --radius-lg: 20px;
  --radius: 14px;
  --radius-sm: 8px;
  --nav-height: 68px;
  --container: 1160px;

  /* Frosted Glass Filters & Multi-layered Shadows */
  --glass-blur: blur(16px) saturate(180%);
  --glass-border: 1px solid rgba(226, 232, 240, 0.85);
  --glass-border-light: 1px solid rgba(241, 245, 249, 0.9);
  --glass-border-glow: 1px solid rgba(2, 132, 199, 0.4);
  --glass-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.06), 0 0 0 1px rgba(2, 132, 199, 0.08), inset 0 1.5px 0 0 #ffffff;
  --glass-shadow-hover: 0 24px 50px -12px rgba(2, 132, 199, 0.16), 0 0 0 1px rgba(2, 132, 199, 0.25), inset 0 1.5px 0 0 #ffffff;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--bg-page);
}

body {
  font-family: var(--font-sans);
  background: var(--bg-page);
  color: var(--text);
  line-height: 1.65;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Radiant Ambient Mesh Background Glows */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: 
    radial-gradient(circle at 12% 10%, rgba(224, 242, 254, 0.7) 0%, transparent 45%),
    radial-gradient(circle at 88% 18%, rgba(224, 231, 255, 0.6) 0%, transparent 45%),
    radial-gradient(circle at 50% 70%, rgba(237, 233, 254, 0.5) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.2s, text-shadow 0.2s;
}
a:hover {
  color: var(--brand-hover);
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  letter-spacing: -0.02em;
}
h1 { font-size: 42px; }
h2 { font-size: 30px; margin: 40px 0 16px; padding-bottom: 8px; }
h3 { font-size: 20px; margin: 24px 0 12px; }
h4 { font-size: 16px; margin: 18px 0 8px; }

p { margin-bottom: 12px; color: var(--text-muted); line-height: 1.7; }
ul, ol { margin: 0 0 16px 20px; color: var(--text-muted); }
li { margin-bottom: 6px; }

code {
  font-family: var(--font-mono);
  background: var(--brand-light);
  border: 1px solid #bae6fd;
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.88em;
  color: #0369a1;
  font-weight: 500;
}

pre.code {
  background: var(--bg-code);
  color: #f8fafc;
  border-radius: var(--radius);
  border: 1px solid #1e293b;
  padding: 18px 22px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.75;
  overflow-x: auto;
  margin: 14px 0;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
}

pre.code .comment { color: #64748b; font-style: italic; }
pre.code .keyword { color: #c084fc; font-weight: 500; }
pre.code .string { color: #34d399; }
pre.code .number { color: #fbbf24; }
pre.code .func { color: #38bdf8; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Navigation Bar (Light Frosted Glass Header)
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: var(--bg-nav);
  border-bottom: var(--glass-border);
  z-index: 1000;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
  transition: background 0.3s, border-color 0.3s;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  gap: 24px;
}

.navbar .logo {
  font-family: 'Outfit', var(--font-sans);
  font-size: 26px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  flex-shrink: 0;
  white-space: nowrap;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar .logo:hover { text-decoration: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}

.nav-links a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--bg-soft);
  border-color: #cbd5e1;
  text-decoration: none;
}

.nav-links a.active {
  color: var(--brand);
  background: var(--brand-light);
  border-color: #bae6fd;
  font-weight: 600;
}

.nav-links .btn-cta {
  background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
  color: #ffffff !important;
  margin-left: 10px;
  border: none;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.nav-links .btn-cta:hover {
  background: linear-gradient(135deg, var(--brand-hover) 0%, #1d4ed8 100%);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  background: var(--bg-glass);
  border: var(--glass-border);
  font-size: 20px;
  cursor: pointer;
  color: var(--text);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  backdrop-filter: var(--glass-blur);
}

/* ==========================================================================
   Buttons & Interactive Glass Controls
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 16px rgba(2, 132, 199, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--brand-hover) 0%, #1d4ed8 100%);
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.5);
  transform: translateY(-2px);
}

.btn-glow {
  background: linear-gradient(135deg, var(--brand) 0%, var(--accent-indigo) 100%);
  color: #ffffff !important;
  box-shadow: 0 4px 20px rgba(2, 132, 199, 0.35);
}

.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(2, 132, 199, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  border: var(--glass-border);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
}

.btn-secondary:hover {
  background: #ffffff;
  border-color: #cbd5e1;
  color: var(--brand);
  transform: translateY(-2px);
  box-shadow: var(--glass-shadow-hover);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: var(--glass-border);
}

.btn-outline:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: var(--brand-light);
  transform: translateY(-1px);
}

.btn-full { width: 100%; text-align: center; justify-content: center; }
.btn-sm { padding: 7px 14px; font-size: 13px; border-radius: 6px; }

.copy-btn {
  background: rgba(2, 132, 199, 0.12);
  border: 1px solid rgba(2, 132, 199, 0.3);
  color: var(--brand);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
}

/* ==========================================================================
   Hero Section (Light Tech Showcase)
   ========================================================================== */

.hero, .hero-modern {
  position: relative;
  padding: 120px 0 70px;
  overflow: hidden;
  text-align: center;
  background: radial-gradient(circle at 50% -10%, rgba(224, 242, 254, 0.8) 0%, transparent 65%);
  border-bottom: var(--glass-border);
}

.hero-glow {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 750px;
  height: 750px;
  background: radial-gradient(circle, rgba(186, 230, 253, 0.5) 0%, rgba(224, 231, 255, 0.3) 40%, transparent 70%);
  pointer-events: none;
  filter: blur(80px);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: 30px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
}

.badge-icon {
  font-size: 12px;
  font-weight: 700;
  color: #ef4444;
}

.hero-title {
  font-family: 'Outfit', var(--font-sans);
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.gradient-text {
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 50%, #4f46e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  max-width: 760px;
  margin: 0 auto 36px;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 20px 40px;
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  margin: 0 auto;
}

.stat-item { text-align: center; }

.stat-value {
  font-family: 'Outfit', var(--font-sans);
  font-size: 26px;
  font-weight: 800;
  color: var(--brand);
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 3px;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: #e2e8f0;
}

/* ==========================================================================
   Sections & General Card Grid System
   ========================================================================== */

.section { padding: 72px 0; }
.bg-soft { background: rgba(241, 245, 249, 0.7); }
.border-top { border-top: var(--glass-border); }

.section-header { margin-bottom: 40px; }
.section-header.center { text-align: center; max-width: 740px; margin: 0 auto 48px; }

.sub-tag {
  font-family: 'Outfit', var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--brand);
  margin-bottom: 10px;
  text-transform: uppercase;
}

.section-header h2 {
  font-family: 'Outfit', var(--font-sans);
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  border-bottom: none;
  margin: 0 0 14px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
}

.card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.card:hover {
  border-color: #bae6fd;
  box-shadow: var(--glass-shadow-hover);
}

/* ==========================================================================
   Spotlight Section (365D Dataset Light Glass Card)
   ========================================================================== */

.spotlight-section { padding: 72px 0; }

.spotlight-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #bae6fd;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 16px 40px rgba(2, 132, 199, 0.08), inset 0 1px 0 0 #ffffff;
  backdrop-filter: var(--glass-blur);
  position: relative;
  overflow: hidden;
}

.spotlight-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(224, 242, 254, 0.7) 0%, transparent 70%);
  pointer-events: none;
}

.spotlight-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 36px;
  align-items: center;
}

.card-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--brand-light);
  border: 1px solid #bae6fd;
  color: #0369a1;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.spotlight-content h3 {
  font-size: 26px;
  color: var(--text);
  margin: 0 0 14px;
}

.spotlight-content p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 22px;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-muted);
  font-size: 14.5px;
  margin-bottom: 14px;
  line-height: 1.65;
}

.feature-list li .icon-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--brand-light);
  border: 1px solid #bae6fd;
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-item-text { flex: 1; color: var(--text-muted); }
.feature-item-text strong { color: var(--text); font-weight: 600; }

.spotlight-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.meta-tag {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.spotlight-breakdown {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 26px;
}

.breakdown-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

.factor-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-muted);
  transition: all 0.2s;
}

.chip:hover {
  border-color: var(--brand);
  background: var(--brand-light);
  color: #0369a1;
  transform: translateY(-1px);
}

.chip.highlight {
  background: #e0e7ff;
  border-color: #c7d2fe;
  color: #3730a3;
  font-weight: 600;
}

/* ==========================================================================
   Topology Grid Architecture Cards
   ========================================================================== */

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

.topology-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.topology-card:hover {
  transform: translateY(-4px);
  border-color: #7dd3fc;
  box-shadow: var(--glass-shadow-hover);
}

.card-icon-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.icon-box.blue { background: #e0f2fe; border: 1px solid #bae6fd; }
.icon-box.purple { background: #f3e8ff; border: 1px solid #e9d5ff; }

.card-icon-header h3 { font-size: 20px; color: var(--text); margin: 0; }
.card-subtitle { font-size: 12px; color: var(--text-light); font-family: var(--font-mono); }

.topology-desc { color: var(--text-muted); font-size: 14px; margin-bottom: 20px; }

.dataset-tags {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.tag-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-muted);
}

.tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.code-snippet-mini {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-radius: 10px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: #0369a1;
  overflow-x: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.2s;
}

.code-snippet-mini:hover {
  background: #e0f2fe;
  border-color: #7dd3fc;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.15);
}

.code-snippet-mini code { background: transparent; padding: 0; color: #0369a1; font-weight: 600; }

.mini-copy-icon {
  font-size: 11px;
  font-weight: 600;
  color: var(--brand);
  background: #ffffff;
  border: 1px solid #bae6fd;
  padding: 3px 9px;
  border-radius: 5px;
  flex-shrink: 0;
  transition: all 0.2s;
}

.code-snippet-mini:hover .mini-copy-icon {
  background: var(--brand);
  color: #ffffff;
  border-color: var(--brand);
}

/* ==========================================================================
   Code Showcase & IDE Tabs
   ========================================================================== */

.code-tabs-container {
  background: var(--bg-code);
  border: 1px solid #1e293b;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15);
}

.code-tab-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #1e293b;
  border-bottom: 1px solid #334155;
  padding: 0 16px 0 0;
}

.tab-btn-group {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.tab-btn-group::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 13px 18px;
  color: #94a3b8;
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  border-bottom: 2px solid transparent;
  flex-shrink: 0;
}

.tab-btn:hover { color: #f1f5f9; }

.tab-btn.active {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  border-bottom-color: #38bdf8;
  font-weight: 600;
}

.tab-content { display: none; padding: 24px 28px; }
.tab-content.active { display: block; }
.tab-content pre.code { margin: 0; background: transparent; padding: 0; border: none; box-shadow: none; }

.code-wrap {
  background: var(--bg-code);
  border-radius: var(--radius);
  border: 1px solid #1e293b;
  overflow: hidden;
  margin: 16px 0;
}

.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: #1e293b;
  border-bottom: 1px solid #334155;
}

.code-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #94a3b8;
}

/* ==========================================================================
   Pricing Cards & Comparison Table
   ========================================================================== */

.pricing-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 920px;
  margin: 0 auto;
}

.pricing-cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
}

.pricing-card {
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  overflow: visible !important;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.pricing-card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
  box-shadow: var(--glass-shadow-hover);
}

.pricing-card.featured {
  border: 2px solid var(--brand);
  box-shadow: 0 20px 45px -8px rgba(2, 132, 199, 0.2), inset 0 1px 0 0 #ffffff;
}

.featured-badge {
  position: absolute;
  top: -14px;
  right: 20px;
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
  z-index: 10;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.plan-name { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 8px; }

.plan-price {
  font-family: 'Outfit', var(--font-sans);
  font-size: 40px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
}
.plan-price span { font-size: 14px; color: var(--text-muted); font-weight: 400; }

.plan-desc { color: var(--text-muted); font-size: 13.5px; margin-bottom: 22px; }

.plan-features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  flex-grow: 1;
}

.pricing-card .plan-features li {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 12px;
  padding-left: 26px !important;
  position: relative;
  display: block !important;
  text-align: left;
}

.pricing-card .plan-features li::before {
  content: "✓" !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  position: absolute;
  left: 0;
  top: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green-bg);
  color: var(--green);
  font-size: 11px;
  font-weight: 800;
}

.pricing-card .plan-features li strong { color: var(--text); font-weight: 600; }

/* Tables */
.param-table, .field-table, .sdk-table, .compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
  margin: 16px 0 24px;
  border: var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.03);
}

.param-table th, .field-table th, .sdk-table th, .compare-table th {
  text-align: left;
  padding: 12px 16px;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  font-weight: 600;
  color: var(--text);
  font-size: 13px;
}

.param-table td, .field-table td, .sdk-table td, .compare-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #f1f5f9;
  color: var(--text-muted);
  vertical-align: top;
}

.param-table tr:last-child td, .field-table tr:last-child td, .sdk-table tr:last-child td, .compare-table tr:last-child td {
  border-bottom: none;
}

.param-table tr:hover td, .field-table tr:hover td, .sdk-table tr:hover td, .compare-table tr:hover td {
  background: #f8fafc;
}

.param-table td:first-child, .field-table td:first-child, .sdk-table td:first-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--brand);
  white-space: nowrap;
  width: 90px;
}

.required::after { content: " *"; color: var(--red); }

/* ==========================================================================
   Method Cards & SDK Components
   ========================================================================== */

.method-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 20px 0 28px;
}

.method-card {
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  transition: all 0.2s;
}

.method-card:hover {
  border-color: #bae6fd;
  transform: translateY(-2px);
  box-shadow: var(--glass-shadow-hover);
}

.method-card h4 {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--brand);
  margin: 0 0 6px;
  font-weight: 600;
}

.method-card p {
  font-size: 13.5px;
  margin: 0;
  color: var(--text-muted);
}

/* ==========================================================================
   Download Cards & Badges
   ========================================================================== */

.download-card {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 24px 28px;
  border: var(--glass-border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  transition: all 0.25s;
}

.download-card:hover {
  border-color: #bae6fd;
  transform: translateY(-2px);
  box-shadow: var(--glass-shadow-hover);
}

.download-card .dl-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  font-family: var(--font-mono);
  flex-shrink: 0;
  background: var(--brand-light);
  color: var(--brand);
  border: 1px solid #bae6fd;
}

.download-card .dl-info { flex: 1; min-width: 0; }
.download-card .dl-info h3 { font-size: 18px; color: var(--text); margin: 0 0 6px; }
.download-card .dl-info p { font-size: 14px; margin: 0 0 10px; color: var(--text-muted); }

.download-card .dl-btn {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  background: var(--brand);
  color: #ffffff;
  border: none;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.2s;
}

.download-card .dl-btn:hover {
  background: var(--brand-hover);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
  transform: translateY(-1px);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 6px;
  font-family: var(--font-mono);
}

.badge-green { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.badge-blue { background: var(--blue-bg); color: var(--blue); border: 1px solid #bae6fd; }
.badge-orange { background: var(--orange-bg); color: var(--orange); border: 1px solid #fde68a; }
.badge-purple { background: var(--purple-bg); color: var(--purple); border: 1px solid #ddd6fe; }
.badge-gray { background: #f1f5f9; color: var(--text-muted); border: 1px solid #e2e8f0; }

/* ==========================================================================
   Account & Personal Center Dashboard
   ========================================================================== */

.auth-page {
  padding: calc(var(--nav-height) + 54px) 0 80px;
  background: var(--bg-page);
  min-height: 100vh;
}

.auth-card {
  max-width: 440px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px 32px;
  backdrop-filter: var(--glass-blur);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
}

.auth-brand { text-align: center; margin-bottom: 30px; }
.auth-brand h1 { font-size: 24px; font-weight: 700; margin: 0 0 8px; color: var(--text); }
.auth-brand p { font-size: 14px; color: var(--text-muted); margin: 0; }

.auth-tabs {
  display: flex;
  border: var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 24px;
  background: #f1f5f9;
}

.auth-tab {
  flex: 1;
  background: transparent;
  border: none;
  padding: 10px 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}

.auth-tab.active {
  background: #ffffff;
  color: var(--brand);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.auth-form { display: none; }
.auth-form.active { display: block; }

.field { display: block; margin-bottom: 16px; }

.field-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.field input,
.field select,
.field textarea {
  display: block;
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #ffffff;
  border: var(--glass-border);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
  background: #ffffff;
}

.form-msg { font-size: 13px; margin: 6px 0 14px; min-height: 18px; }
.form-msg.error { color: var(--red); }
.form-msg.success { color: var(--green); }

.auth-submit { width: 100%; margin-top: 8px; }

.honeypot {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.auth-foot {
  text-align: center;
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
}
.auth-foot a { color: var(--brand); }

/* Logged In Dashboard */
.account-page { padding: calc(var(--nav-height) + 36px) 0 80px; }

.account-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 32px;
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
}

.account-hero-left { display: flex; align-items: center; gap: 20px; min-width: 0; }

.account-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand) 0%, var(--accent-purple) 100%);
  color: #ffffff;
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.account-hero-info { min-width: 0; }
.account-greeting { font-size: 22px; font-weight: 700; color: var(--text); margin: 0 0 6px; }

.account-meta-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}

.account-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.account-meta-item svg { opacity: 0.5; flex-shrink: 0; }

.account-meta-sep {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-dim);
  margin: 0 4px;
  flex-shrink: 0;
}

#meEmail { color: var(--text); font-weight: 500; }
#meEmail.email-unset { color: var(--orange); font-style: italic; font-weight: 400; }

.account-edit-link {
  font-size: 12px;
  color: var(--brand);
  margin-left: 4px;
  white-space: nowrap;
}
.account-edit-link:hover { text-decoration: underline; }

.account-hero-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Tab Navigation */
.account-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius);
  margin-bottom: 24px;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
}

.account-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: transparent;
  border: none;
  padding: 11px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 10px;
  transition: all 0.2s;
  font-family: inherit;
}

.account-tab:hover { background: #f8fafc; color: var(--text); }

.account-tab.active {
  background: var(--brand);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.account-tab.active svg { stroke: #ffffff; }

.account-content {
  min-height: 300px;
}

.account-section { display: none; }
.account-section.active { display: block; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius);
  padding: 20px 22px;
  backdrop-filter: var(--glass-blur);
}

.stat-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg { stroke-width: 2; }

.stat-icon-balance { background: var(--green-bg); color: var(--green); }
.stat-icon-balance svg { stroke: var(--green); }
.stat-icon-traffic { background: var(--blue-bg); color: var(--blue); }
.stat-icon-traffic svg { stroke: var(--blue); }
.stat-icon-sub { background: var(--purple-bg); color: var(--purple); }
.stat-icon-sub svg { stroke: var(--purple); }
.stat-icon-key { background: var(--orange-bg); color: var(--orange); }
.stat-icon-key svg { stroke: var(--orange); }

.stat-info { min-width: 0; }
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.stat-card .stat-value { font-size: 24px; font-weight: 800; color: var(--text); margin-bottom: 2px; }
.stat-card .stat-unit { font-size: 13px; font-weight: 500; color: var(--text-muted); }
.stat-card .stat-foot { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

.progress {
  width: 100%;
  height: 10px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
  margin: 8px 0 12px;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--brand) 0%, var(--accent-purple) 100%);
  transition: width 0.4s ease;
}

.progress-bar.warn { background: linear-gradient(90deg, var(--orange) 0%, var(--red) 100%); }

.progress-foot { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-muted); }
.progress-foot strong { color: var(--text); }

/* API Key & Orders List */
.key-item, .order-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  border: var(--glass-border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: var(--glass-blur);
  margin-bottom: 10px;
}

.key-item .key-prefix {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brand);
  background: var(--brand-light);
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 600;
}

.key-meta { flex: 1; min-width: 0; }
.key-desc { font-size: 14px; color: var(--text); font-weight: 500; }
.key-time { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

.key-status {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--green-bg);
  color: var(--green);
  white-space: nowrap;
}
.key-status.disabled { background: #f1f5f9; color: var(--text-dim); }

.key-item-empty {
  text-align: center;
  padding: 32px 16px;
  color: var(--text-muted);
}
.key-item-empty strong { display: block; margin-bottom: 6px; color: var(--text); font-size: 15px; }
.key-item-empty span { font-size: 13px; }

.key-divider {
  text-align: center;
  margin: 24px 0 20px;
  position: relative;
}
.key-divider::before {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 1px;
  background: #e2e8f0;
}
.key-divider span {
  position: relative;
  background: #ffffff;
  padding: 0 16px;
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

.key-create-form {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}
.key-create-form .field { flex: 1; margin-bottom: 0; }

.key-result { margin-top: 20px; }

/* Subscription */
.sub-badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  background: #f1f5f9;
  color: var(--text-muted);
  white-space: nowrap;
}
.sub-badge.active { background: var(--green-bg); color: var(--green); }
.sub-badge.expired { background: var(--red-bg); color: var(--red); }

.sub-current { margin-bottom: 28px; }

.sub-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
  margin: 0;
}
.sub-detail dt { font-size: 13px; color: var(--text-dim); margin-bottom: 2px; }
.sub-detail dd { font-size: 14px; color: var(--text); font-weight: 500; margin: 0 0 8px; }

.sub-actions { margin-top: 16px; }

.sub-block-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 16px;
}

.yearly-perk {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--purple-bg);
  border: 1px solid #ddd6fe;
  border-radius: var(--radius-sm);
}
.yearly-perk strong { display: block; color: var(--purple); font-size: 14px; margin-bottom: 4px; }
.yearly-perk span { font-size: 13px; color: var(--text-muted); }

/* Plan Grid */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.plan-card {
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
}
.plan-card.featured {
  border-color: var(--brand);
  box-shadow: 0 0 0 1px var(--brand), var(--glass-shadow);
}

.plan-card h3 { font-size: 18px; font-weight: 700; color: var(--text); margin: 0 0 12px; }

.plan-card .price {
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 20px;
}
.plan-card .price span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
}

.plan-card ul {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  flex: 1;
}
.plan-card ul li {
  padding: 6px 0;
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.plan-card ul li::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
  font-size: 13px;
}
.plan-feature-highlight { color: var(--brand) !important; font-weight: 600 !important; }
.plan-feature-detail { font-size: 12px !important; color: var(--text-dim) !important; }
.plan-feature-detail::before { content: '' !important; }

.plan-card .btn-buy { width: 100%; }

/* Orders */
.order-empty {
  text-align: center;
  padding: 32px 16px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.order-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  border: var(--glass-border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: var(--glass-blur);
  margin-bottom: 10px;
}
.order-subject { font-size: 14px; color: var(--text); font-weight: 500; }
.order-no { font-size: 12px; color: var(--text-dim); font-family: var(--font-mono); margin-top: 2px; }
.order-amount { font-size: 16px; font-weight: 700; color: var(--text); white-space: nowrap; }
.order-status {
  font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 6px; white-space: nowrap;
}
.order-status.paid { background: var(--green-bg); color: var(--green); }
.order-status.pending { background: var(--orange-bg); color: var(--orange); }
.order-status.closed { background: #f1f5f9; color: var(--text-dim); }
.order-time { font-size: 12px; color: var(--text-dim); white-space: nowrap; }

/* Email Change Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-steps {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
}
.modal-step {
  flex: 1;
  text-align: center;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  padding: 8px 0;
  border-bottom: 2px solid #e2e8f0;
}
.modal-step.active {
  color: var(--brand);
  border-bottom-color: var(--brand);
  font-weight: 600;
}

.modal-step-pane { display: none; }
.modal-step-pane.active { display: block; }

.form-row { margin-bottom: 16px; }
.form-row label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form-row input {
  display: block;
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #ffffff;
  border: var(--glass-border);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.form-row input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
}

.form-hint { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

.otp-box-group { display: flex; gap: 8px; }

.modal-error {
  background: var(--red-bg);
  color: var(--red);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin: 12px 0;
}

.modal-actions { display: flex; gap: 10px; margin-top: 16px; }

.modal-success { text-align: center; padding: 24px 0; }
.modal-success-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--green-bg);
  color: var(--green);
  font-size: 24px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.modal-success h4 { font-size: 18px; color: var(--text); margin: 0 0 8px; }
.modal-success p { font-size: 14px; color: var(--text-muted); margin: 0; }

.btn-block { width: 100%; }

.resend-hint {
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 12px;
}
.resend-hint a { color: var(--brand); }

/* Modals */
.modal-mask {
  position: absolute; inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
}

.modal-dialog {
  position: relative;
  width: min(460px, 92vw);
  background: #ffffff;
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(15, 23, 42, 0.15);
  padding: 28px;
}

.modal-header h3 { font-size: 18px; color: var(--text); margin: 0; }

.otp-box {
  width: 46px; height: 54px;
  text-align: center; font-size: 24px; font-weight: 700;
  font-family: var(--font-mono);
  background: #f8fafc;
  border: var(--glass-border);
  border-radius: 8px; color: var(--text);
  outline: none;
}
.otp-box:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2); }

/* ==========================================================================
   Documentation Pages & Endpoints
   ========================================================================== */

.doc-layout {
  display: flex;
  gap: 36px;
  padding-top: calc(var(--nav-height) + 32px);
  padding-bottom: 80px;
  align-items: flex-start;
}

.doc-sidebar {
  width: 250px;
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--nav-height) + 24px);
  max-height: calc(100vh - var(--nav-height) - 48px);
  overflow-y: auto;
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius);
  padding: 20px 16px;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
}

.doc-sidebar h3 {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-light);
  letter-spacing: 0.08em;
  margin: 20px 0 10px;
}
.doc-sidebar h3:first-child { margin-top: 0; }

.doc-sidebar ul { list-style: none; margin: 0 0 16px; }
.doc-sidebar ul li { margin-bottom: 3px; }
.doc-sidebar ul a {
  display: block;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13.5px;
  color: var(--text-muted);
  transition: all 0.2s;
}

.doc-sidebar ul a:hover { background: #f8fafc; color: var(--text); }
.doc-sidebar ul a.active { background: var(--brand-light); color: var(--brand); font-weight: 600; }

.doc-content { flex: 1; min-width: 0; max-width: 860px; }

/* Endpoint Accordion */
.endpoint {
  border: var(--glass-border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: var(--glass-blur);
}

.endpoint-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  user-select: none;
}

.endpoint-header:hover { background: #f8fafc; }

.endpoint-header .method {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  padding: 4px 9px;
  border-radius: 5px;
  min-width: 52px;
  text-align: center;
}

.method.get { background: var(--blue-bg); color: var(--blue); border: 1px solid #bae6fd; }
.method.post { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.method.delete { background: var(--red-bg); color: var(--red); border: 1px solid #fecaca; }

.endpoint-header .path { font-family: var(--font-mono); font-size: 13.5px; flex: 1; color: var(--text); }
.endpoint-header .arrow { font-size: 11px; color: var(--text-light); transition: transform 0.2s; }
.endpoint.open .endpoint-header .arrow { transform: rotate(90deg); }

.endpoint-body { display: none; padding: 0 20px 20px; border-top: 1px solid #f1f5f9; }
.endpoint.open .endpoint-body { display: block; }

/* Info Box Variants */
.info-box {
  background: var(--brand-light);
  border-left: 4px solid var(--brand);
  padding: 14px 18px;
  margin: 18px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  color: var(--text);
}

.info-box.warn {
  background: var(--orange-bg);
  border-left-color: var(--orange);
  color: #92400e;
}

.info-box.success {
  background: var(--green-bg);
  border-left-color: var(--green);
  color: #065f46;
}

/* FAQ Accordions */
.faq-item {
  border: var(--glass-border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.95);
}

.faq-q {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 14.5px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
}

.faq-q:hover { background: #f8fafc; }

.faq-a {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--text-muted);
  display: none;
  border-top: 1px solid #f1f5f9;
}

.faq-item.open .faq-a { display: block; }
.faq-q .arrow { font-size: 11px; color: var(--text-light); transition: transform 0.2s; }
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }

/* Legal Documents */
.legal-doc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
  background: rgba(255, 255, 255, 0.95);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--glass-shadow);
}

.legal-doc h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 36px 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid #e2e8f0;
}

.legal-meta {
  font-size: 13px;
  color: var(--text-light);
  margin: 0 0 24px;
  padding-bottom: 16px;
  border-bottom: 1px dashed #cbd5e1;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: #ffffff;
  border-top: var(--glass-border);
  padding: 64px 0 32px;
  color: var(--text-muted);
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer h4 {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer p { font-size: 13.5px; line-height: 1.7; margin: 0; color: var(--text-muted); }
.footer ul { list-style: none; margin: 0; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { color: var(--text-muted); font-size: 13.5px; }
.footer ul a:hover { color: var(--text); text-decoration: none; }

.footer-bottom {
  border-top: 1px solid #f1f5f9;
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

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

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-title { font-size: 40px; }
  .spotlight-grid { grid-template-columns: 1fr; }
  .topology-grid { grid-template-columns: 1fr; }
  .pricing-cards-grid, .pricing-cards-grid-3 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .doc-layout { flex-direction: column; }
  .doc-sidebar { width: 100%; position: static; max-height: none; }
  .method-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: var(--glass-blur);
    border-bottom: var(--glass-border);
    flex-direction: column;
    padding: 16px;
    gap: 8px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; text-align: center; }
  .nav-links .btn-cta { margin-left: 0; margin-top: 6px; }

  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
  .hero-stats { flex-direction: column; gap: 16px; padding: 20px; width: 100%; }
  .stat-divider { display: none; }

  .account-tabs { flex-wrap: wrap; }
  .account-tab { flex: 1 1 calc(50% - 4px); min-width: 0; font-size: 13px; padding: 10px 12px; }
  .account-tab svg { display: none; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .account-hero { flex-direction: column; align-items: flex-start; gap: 16px; }
  .account-hero-right { width: 100%; justify-content: flex-start; }
  .doc-sidebar { display: none; }
  .doc-layout { padding-top: calc(var(--nav-height) + 24px); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .download-card { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================================
   2026 UI/UX Aesthetic Upgrades (Gradient Text, IDE Window, Bento Grid, Micro-interactions)
   ========================================================================== */

/* Gradient Text Accent */
.gradient-text {
  background: linear-gradient(135deg, #0f172a 30%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-brand {
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Card Hover Accent & Elevation */
.card, .spotlight-card, .topology-card, .download-card {
  position: relative;
  overflow: hidden;
}

.card::after, .topology-card::after, .download-card::after, .pricing-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(2, 132, 199, 0.6), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover::after, .topology-card:hover::after, .download-card:hover::after, .pricing-card:hover::after {
  opacity: 1;
}

/* Specular Shine Sweep for Buttons */
.btn-primary, .dl-btn, .btn-cta {
  position: relative;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.25);
}

.btn-primary::after, .dl-btn::after, .btn-cta::after {
  content: '';
  position: absolute;
  top: -50%; left: -60%;
  width: 40%; height: 200%;
  background: linear-gradient(60deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: rotate(25deg);
  transition: all 0.65s ease;
  pointer-events: none;
  opacity: 0;
}

.btn-primary:hover, .dl-btn:hover, .btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.38);
}

.btn-primary:hover::after, .dl-btn:hover::after, .btn-cta:hover::after {
  left: 140%;
  opacity: 1;
}

.btn-primary:active, .dl-btn:active, .btn-cta:active {
  transform: translateY(0) scale(0.98);
}

/* IDE Code Window Component */
.code-window {
  background: #0f172a;
  border-radius: var(--radius-lg);
  border: 1px solid #1e293b;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.22), 0 0 0 1px rgba(2, 132, 199, 0.2);
  overflow: hidden;
  margin: 20px 0;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.code-window:hover {
  border-color: rgba(2, 132, 199, 0.4);
  box-shadow: 0 25px 60px rgba(15, 23, 42, 0.28), 0 0 20px rgba(2, 132, 199, 0.15);
}

.code-window-header {
  background: #1e293b;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid #334155;
}

.code-window-dots {
  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: #f59e0b; }
.dot-green { background: #10b981; }

.code-window-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #94a3b8;
  font-weight: 500;
  margin-left: 4px;
}

.code-window pre.code {
  margin: 0;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

/* Bento Grid Layout System */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
}

.bento-item-lg {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(240, 249, 255, 0.95));
  border: 1px solid #bae6fd;
}

.bento-item-sm {
  grid-column: span 1;
}

@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: 1fr;
  }
  .bento-item-lg {
    grid-column: span 1;
  }
}