/* ============================================================
   CRM-Service Showcase — Design System & Styles
   Zero dependencies. Dark mode. Glassmorphism. Premium.
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(30, 41, 59, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #60a5fa;

  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-indigo: #6366f1;

  --gradient-primary: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-hero: linear-gradient(135deg, #0a0e1a 0%, #1e1b4b 50%, #0a0e1a 100%);
  --gradient-card: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.1));

  --border-color: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(59, 130, 246, 0.3);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(59,130,246,0.15);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

img { max-width: 100%; display: block; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: rgba(59,130,246,0.3);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(59,130,246,0.5);
}

/* ---------- Selection ---------- */
::selection {
  background: rgba(59,130,246,0.3);
  color: var(--text-primary);
}

/* ---------- Utility ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section-padding {
  padding: var(--space-4xl) 0;
}

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

/* ---------- Glass Card ---------- */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

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

/* ---------- Scroll Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  transition: all var(--transition-base);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-sm) 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.nav-logo svg {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--gradient-primary);
  color: white !important;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
}

.nav-cta:hover {
  transform: scale(1.05);
  box-shadow: 0 0 30px rgba(59,130,246,0.4);
}

.nav-cta::after { display: none !important; }

/* Mobile menu */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-sm);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 80px;
}

/* Animated mesh gradient background */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(59,130,246,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139,92,246,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 40% 80%, rgba(6,182,212,0.08) 0%, transparent 50%);
  animation: meshMove 20s ease-in-out infinite;
}

@keyframes meshMove {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(2%, -3%) rotate(1deg); }
  66% { transform: translate(-1%, 2%) rotate(-1deg); }
}

/* Dot grid pattern */
.hero-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: 1;
}

/* Floating orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 1;
  animation: float 8s ease-in-out infinite;
}

.hero-orb-1 {
  width: 400px;
  height: 400px;
  background: rgba(59,130,246,0.15);
  top: 10%;
  right: 10%;
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 300px;
  height: 300px;
  background: rgba(139,92,246,0.12);
  bottom: 20%;
  left: 5%;
  animation-delay: -3s;
}

.hero-orb-3 {
  width: 200px;
  height: 200px;
  background: rgba(6,182,212,0.1);
  top: 50%;
  left: 50%;
  animation-delay: -6s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 var(--space-xl);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-blue);
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s ease-out;
}

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

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

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(59,130,246,0.4);
  color: white;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--border-glow);
  transform: translateY(-2px);
  color: var(--text-primary);
}

/* Hero stats */
.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  justify-content: center;
  margin-top: var(--space-3xl);
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

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

.hero-stat-value {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: var(--space-xs);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: 0.75rem;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-indicator .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator .wheel {
  width: 3px;
  height: 8px;
  background: var(--text-muted);
  border-radius: var(--radius-full);
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
  0% { transform: translateX(-50%) translateY(0); opacity: 1; }
  100% { transform: translateX(-50%) translateY(12px); opacity: 0; }
}

/* ============================================================
   FEATURES SECTION
   ============================================================ */
.features {
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-3xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-top: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag-core { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.tag-new { background: rgba(16,185,129,0.15); color: var(--accent-emerald); }
.tag-finance { background: rgba(245,158,11,0.15); color: var(--accent-amber); }
.tag-comm { background: rgba(139,92,246,0.15); color: var(--accent-purple); }

/* ============================================================
   DASHBOARD DEMO
   ============================================================ */
.dashboard-section {
  position: relative;
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(30,27,75,0.3) 50%, var(--bg-primary) 100%);
}

.dashboard-wrapper {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  background: var(--bg-secondary);
}

/* Dashboard top bar */
.dash-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-xl);
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid var(--border-color);
}

.dash-topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

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

.dash-window-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #eab308; }
.dot-green { background: #22c55e; }

.dash-url-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 16px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.dash-url-bar .lock {
  color: var(--accent-emerald);
}

.dash-body {
  display: flex;
  min-height: 520px;
}

/* Sidebar */
.dash-sidebar {
  width: 220px;
  background: rgba(0,0,0,0.2);
  border-right: 1px solid var(--border-color);
  padding: var(--space-lg) 0;
  flex-shrink: 0;
}

.dash-sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0 var(--space-lg) var(--space-lg);
  font-weight: 700;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--space-md);
}

.dash-sidebar-brand .brand-dot {
  width: 8px;
  height: 8px;
  background: var(--gradient-primary);
  border-radius: 50%;
}

.dash-nav {
  list-style: none;
  padding: 0 var(--space-sm);
}

.dash-nav li {
  margin-bottom: 2px;
}

.dash-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.dash-nav a:hover,
.dash-nav a.active {
  background: rgba(59,130,246,0.1);
  color: var(--accent-blue);
}

.dash-nav a.active {
  background: rgba(59,130,246,0.15);
  color: var(--accent-blue);
}

.dash-nav .nav-icon {
  font-size: 1rem;
  width: 20px;
  text-align: center;
}

.dash-nav-section {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: var(--space-md) 14px var(--space-sm);
  font-weight: 600;
}

/* Main content */
.dash-main {
  flex: 1;
  padding: var(--space-xl);
  overflow-x: auto;
}

.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.dash-title {
  font-size: 1.35rem;
  font-weight: 700;
}

.dash-search {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  min-width: 240px;
}

.dash-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  width: 100%;
}

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

.dash-search .search-icon {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Dashboard metric cards */
.dash-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.metric-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.metric-card:hover {
  border-color: var(--border-glow);
  background: rgba(255,255,255,0.05);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.metric-value {
  font-size: 1.75rem;
  font-weight: 800;
}

.metric-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: var(--space-sm);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.metric-up {
  color: var(--accent-emerald);
  background: rgba(16,185,129,0.1);
}

.metric-down {
  color: var(--accent-rose);
  background: rgba(244,63,94,0.1);
}

/* Dashboard chart + table layout */
.dash-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.dash-panel {
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.dash-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.dash-panel-title {
  font-size: 0.9rem;
  font-weight: 600;
}

.dash-panel-badge {
  font-size: 0.7rem;
  padding: 2px 10px;
  background: rgba(59,130,246,0.1);
  color: var(--accent-blue);
  border-radius: var(--radius-full);
  font-weight: 500;
}

.dash-panel-body {
  padding: var(--space-lg);
}

/* Chart area */
.chart-container {
  position: relative;
  height: 200px;
}

.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}

/* Table */
.dash-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.dash-table th {
  text-align: left;
  padding: 8px 12px;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.dash-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  color: var(--text-secondary);
}

.dash-table tr:last-child td {
  border-bottom: none;
}

.dash-table tr:hover td {
  background: rgba(255,255,255,0.02);
}

.status-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
}

.status-active { background: rgba(16,185,129,0.15); color: var(--accent-emerald); }
.status-pending { background: rgba(245,158,11,0.15); color: var(--accent-amber); }
.status-inactive { background: rgba(100,116,139,0.15); color: var(--text-muted); }

.avatar-sm {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-card);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-blue);
  border: 1px solid var(--border-color);
  margin-right: 8px;
  vertical-align: middle;
}

/* ============================================================
   ARCHITECTURE SECTION
   ============================================================ */
.architecture {
  position: relative;
}

.arch-diagram {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
}

.arch-row {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.arch-node {
  padding: var(--space-lg) var(--space-xl);
  text-align: center;
  min-width: 160px;
  position: relative;
}

.arch-node-icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.arch-node-title {
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: var(--space-xs);
}

.arch-node-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.arch-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) 0;
}

.arch-connector-line {
  width: 2px;
  height: 40px;
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-purple));
  border-radius: var(--radius-full);
  position: relative;
}

.arch-connector-line::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  background: var(--accent-purple);
  border-radius: 50%;
}

.arch-connector-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  margin: 0 var(--space-md);
  white-space: nowrap;
}

/* ============================================================
   API EXPLORER
   ============================================================ */
.api-section {
  position: relative;
}

.api-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.api-cat-btn {
  padding: 8px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
}

.api-cat-btn:hover,
.api-cat-btn.active {
  background: rgba(59,130,246,0.15);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.api-endpoints {
  display: grid;
  gap: var(--space-sm);
  max-width: 800px;
  margin: 0 auto;
}

.api-endpoint {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.api-endpoint:hover {
  background: rgba(255,255,255,0.04);
  border-color: var(--border-glow);
}

.api-method {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  min-width: 52px;
  text-align: center;
  text-transform: uppercase;
}

.method-get { background: rgba(16,185,129,0.15); color: var(--accent-emerald); }
.method-post { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.method-put { background: rgba(245,158,11,0.15); color: var(--accent-amber); }
.method-delete { background: rgba(244,63,94,0.15); color: var(--accent-rose); }

.api-path {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  flex: 1;
}

.api-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.api-expand-icon {
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.api-endpoint.expanded .api-expand-icon {
  transform: rotate(180deg);
}

.api-detail {
  display: none;
  padding: var(--space-md) var(--space-lg);
  padding-top: 0;
}

.api-endpoint.expanded + .api-detail {
  display: block;
}

.api-code {
  background: rgba(0,0,0,0.3);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  overflow-x: auto;
  white-space: pre;
  border: 1px solid var(--border-color);
}

.api-code .keyword { color: var(--accent-purple); }
.api-code .string { color: var(--accent-emerald); }
.api-code .number { color: var(--accent-amber); }

.api-info-row {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  margin-top: var(--space-2xl);
}

.api-info-card {
  text-align: center;
  padding: var(--space-lg) var(--space-xl);
}

.api-info-card .info-value {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.api-info-card .info-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* ============================================================
   TECH STACK
   ============================================================ */
.tech-section {
  position: relative;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.tech-card {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}

.tech-card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.tech-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.tech-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border-color);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 300px;
}

.footer h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: var(--space-md);
}

.footer-socials a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.footer-socials a:hover {
  background: rgba(59,130,246,0.15);
  color: var(--accent-blue);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .dash-metrics { grid-template-columns: repeat(2, 1fr); }
  .dash-content-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-toggle { display: block; }

  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
  }

  .hero-stats { flex-direction: column; gap: var(--space-lg); }

  .dash-body { flex-direction: column; }
  .dash-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border-color); padding: var(--space-md) 0; }
  .dash-nav { display: flex; flex-wrap: wrap; gap: var(--space-xs); padding: 0 var(--space-md); }
  .dash-nav-section { display: none; }
  .dash-header { flex-direction: column; gap: var(--space-md); align-items: flex-start; }
  .dash-search { min-width: 100%; }
  .dash-metrics { grid-template-columns: 1fr 1fr; }

  .arch-row { flex-direction: column; align-items: center; }

  .api-info-row { flex-direction: column; gap: var(--space-md); }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-md); text-align: center; }

  .tech-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-md); }
  .dash-metrics { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
}