:root {
  --bg-deep: #050814;
  --bg-base: #0a0f1f;
  --bg-surface: #0f1628;
  --bg-elevated: #151e36;
  --bg-glass: rgba(15, 22, 40, 0.65);

  --text-primary: #e8eef8;
  --text-secondary: #94a3b8;
  --text-muted: #5b6b85;

  --accent-primary: #00d4ff;
  --accent-secondary: #0099cc;
  --accent-glow: rgba(0, 212, 255, 0.35);
  --accent-soft: rgba(0, 212, 255, 0.12);

  --accent-warm: #ff6b35;
  --accent-warm-glow: rgba(255, 107, 53, 0.3);

  --success: #22c55e;
  --warning: #fbbf24;
  --error: #ef4444;

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(0, 212, 255, 0.3);

  --gradient-accent: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
  --gradient-warm: linear-gradient(135deg, #ff6b35 0%, #ff9558 100%);
  --gradient-deep: linear-gradient(180deg, #050814 0%, #0a0f1f 100%);
  --gradient-hero: radial-gradient(ellipse at 30% 20%, rgba(0, 120, 200, 0.15) 0%, transparent 50%), radial-gradient(ellipse at 70% 80%, rgba(255, 107, 53, 0.08) 0%, transparent 50%);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Sora", system-ui, sans-serif;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px var(--accent-glow);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  --max-width: 1200px;
  --header-height: 72px;

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

::selection {
  background: var(--accent-primary);
  color: var(--bg-deep);
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow); }
  50% { box-shadow: 0 0 40px var(--accent-glow), 0 0 60px var(--accent-glow); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes orbit {
  from { transform: rotate(0deg) translateX(var(--orbit-radius)) rotate(0deg); }
  to { transform: rotate(360deg) translateX(var(--orbit-radius)) rotate(-360deg); }
}

@keyframes gridMove {
  from { background-position: 0 0; }
  to { background-position: 50px 50px; }
}

.animate-fade-up {
  animation: fadeInUp 0.8s var(--transition-slow) both;
}
.animate-fade-in {
  animation: fadeIn 0.8s ease both;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  width: 100%;
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin-bottom: var(--space-sm);
}

.section-eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--accent-primary);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-md);
  max-width: 720px;
}

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

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--bg-deep);
  box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}
.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: var(--accent-soft);
}

.btn-warm {
  background: var(--gradient-warm);
  color: white;
  box-shadow: 0 4px 24px var(--accent-warm-glow);
}
.btn-warm:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-warm-glow);
}

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

.glass-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--accent-soft);
  color: var(--accent-primary);
  border: 1px solid var(--border-accent);
}

@media (max-width: 768px) {
  :root {
    --space-3xl: 64px;
    --space-2xl: 48px;
  }
  .container {
    padding: 0 var(--space-sm);
  }
}