/* ==========================================================================
   InetConnector — Distributed AI Compute Brand Portal
   Design System & Rich Aesthetics (Vanilla CSS)
   ========================================================================== */

:root {
  /* Color Tokens */
  --bg-base: #050811;
  --bg-surface: #0a0f1d;
  --bg-surface-elevated: #11182c;
  --bg-card: rgba(16, 24, 44, 0.7);
  --bg-card-hover: rgba(22, 33, 62, 0.85);

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

  --accent-cyan: #00f2fe;
  --accent-blue: #3b82f6;
  --accent-emerald: #10b981;
  --accent-violet: #8b5cf6;
  --accent-amber: #f59e0b;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 242, 254, 0.3);
  --border-emerald: rgba(16, 185, 129, 0.3);

  --glow-cyan: 0 0 25px rgba(0, 242, 254, 0.25);
  --glow-emerald: 0 0 25px rgba(16, 185, 129, 0.25);

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

  /* Layout */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --max-width: 1200px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Canvas Background */
#mesh-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.65;
}

/* Typography Utilities */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 60%, var(--accent-violet) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 8, 17, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.85rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-logo-icon svg {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.4));
}

.brand-text-group {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--accent-cyan);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-item:hover {
  color: var(--accent-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.btn-lang {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-lang:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-cyan);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #00f2fe 0%, #3b82f6 100%);
  color: #050811;
  box-shadow: var(--glow-cyan);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

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

.btn-glow {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(59, 130, 246, 0.15));
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

.btn-glow:hover {
  background: var(--accent-cyan);
  color: #050811;
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.5);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 0.85rem 1.8rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
}

.btn-full {
  width: 100%;
}

.btn-arrow {
  transition: var(--transition);
}

.btn-glow:hover .btn-arrow {
  transform: translateX(4px);
}

/* Hero Section */
.hero-section {
  padding: 6rem 0 4rem;
  position: relative;
  z-index: 1;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1.1rem;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  margin-bottom: 2rem;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.15);
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; filter: drop-shadow(0 0 8px #00f2fe); }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  max-width: 900px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 780px;
  margin-bottom: 2.8rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 4rem;
}

/* Live Stats Bar */
.live-stats-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-around;
  width: 100%;
  max-width: 980px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem 2rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  gap: 1.5rem;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.stat-icon {
  font-size: 1.6rem;
}

.stat-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.stat-val {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
}

.stat-val.emerald { color: var(--accent-emerald); }
.stat-val.cyan { color: var(--accent-cyan); }
.stat-val.violet { color: var(--accent-violet); }

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-subtle);
}

/* Section Shared */
.section {
  padding: 5rem 0;
  position: relative;
  z-index: 1;
}

.section-head {
  margin-bottom: 3.5rem;
}

.section-head.text-center {
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}

.section-sub {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 650px;
  margin: 0 auto;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.feat-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}

.cyan-glow { background: rgba(0, 242, 254, 0.1); border: 1px solid var(--border-glow); }
.emerald-glow { background: rgba(16, 185, 129, 0.1); border: 1px solid var(--border-emerald); }
.violet-glow { background: rgba(139, 92, 246, 0.1); border: 1px solid rgba(139, 92, 246, 0.3); }

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.feat-badge {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

/* Code Showcase */
.code-showcase-box {
  background: #090e1c;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.code-tabs {
  display: flex;
  background: rgba(5, 8, 17, 0.9);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.5rem 1rem 0;
  gap: 0.5rem;
}

.code-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
}

.code-tab.active {
  color: var(--accent-cyan);
  background: #090e1c;
  border-bottom: 2px solid var(--accent-cyan);
}

.code-content-wrapper {
  padding: 1.5rem;
}

.code-block {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: #e2e8f0;
  overflow-x: auto;
}

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

/* Syntax Highlighting */
.k { color: #f43f5e; font-weight: 600; }
.s { color: #34d399; }
.n { color: #38bdf8; }
.c { color: #64748b; font-style: italic; }
.mi { color: #fbbf24; }

.code-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: rgba(5, 8, 17, 0.7);
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 1rem;
}

.code-hint {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Provider Grid */
.provider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.provider-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.2rem 2rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.provider-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.provider-card.highlight-card {
  border-color: var(--accent-cyan);
  background: rgba(16, 24, 44, 0.9);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.15);
}

.prov-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #00f2fe, #3b82f6);
  color: #050811;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.08em;
}

.prov-icon {
  font-size: 2.4rem;
  margin-bottom: 1rem;
}

.provider-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.85rem;
}

.provider-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.cli-command-box {
  background: #050811;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
  overflow-x: auto;
}

/* Security Grid */
.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.sec-item {
  display: flex;
  gap: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.sec-item-icon {
  font-size: 2rem;
}

.sec-item-content h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

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

/* Footer */
.site-footer {
  background: #03050c;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2rem;
  position: relative;
  z-index: 1;
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 1rem 0 1.5rem;
  max-width: 320px;
}

.footer-endpoint-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
}

.footer-endpoint-pill a {
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 600;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 1.2rem;
  color: #fff;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.7rem;
}

.footer-col a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-badge {
  color: var(--accent-emerald);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 900px) {
  .nav-menu { display: none; }
  .footer-container { grid-template-columns: 1fr 1fr; }
  .stat-divider { display: none; }
}

@media (max-width: 600px) {
  .footer-container { grid-template-columns: 1fr; }
  .hero-cta-group { flex-direction: column; width: 100%; }
  .hero-cta-group .btn { width: 100%; }
}