/* global.css — all values reference CSS vars injected from theme.json */

/* ─── Fallback vars (in case theme.js hasn't fired yet) ──────────────────── */
:root {
  --color-primary: #00e5a0;
  --color-primary-dim: #00b87d;
  --color-primary-glow: rgba(0, 229, 160, 0.15);
  --color-primary-glow-strong: rgba(0, 229, 160, 0.3);
  --color-bg: #080b0f;
  --color-bg-surface: #0d1117;
  --color-bg-card: #111820;
  --color-bg-card-hover: #141d28;
  --color-bg-border: #1e2a38;
  --color-bg-border-light: #2a3a4d;
  --color-text-heading: #f0f6ff;
  --color-text-body: #8fa3b8;
  --color-text-muted: #4a6077;
  --color-text-inverse: #080b0f;
  --color-accent-red: #ff4d6a;
  --color-accent-blue: #3d9eff;
  --color-accent-amber: #f0a028;
  --font-heading: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --spacing-section-padding: 120px;
  --spacing-section-padding-mobile: 72px;
  --spacing-container-max: 1200px;
  --spacing-container-padding: 24px;
  --radius-card: 16px;
  --radius-button: 8px;
  --radius-badge: 100px;
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  background: var(--color-bg);
  color: var(--color-text-body);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── Typography ─────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.6rem, 5.5vw, 4.5rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); font-weight: 600; }
h4 { font-size: 1.125rem; font-weight: 600; }

p { color: var(--color-text-body); line-height: 1.7; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-text-heading); }

/* ─── Layout ─────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--spacing-container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-container-padding);
}

.section {
  padding: var(--spacing-section-padding) 0;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-button);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: 0 0 0 0 var(--color-primary-glow);
}
.btn-primary:hover {
  background: var(--color-text-heading);
  color: var(--color-bg);
  box-shadow: 0 0 32px var(--color-primary-glow-strong);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-heading);
  border: 1px solid var(--color-bg-border-light);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-body);
  padding: 14px 20px;
}
.btn-ghost:hover { color: var(--color-text-heading); }

.btn-lg { padding: 18px 36px; font-size: 1rem; }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }

/* ─── Badge / Tag ────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-badge);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.badge-primary {
  background: var(--color-primary-glow);
  color: var(--color-primary);
  border: 1px solid rgba(0, 229, 160, 0.25);
}
.badge-muted {
  background: rgba(255,255,255,0.04);
  color: var(--color-text-muted);
  border: 1px solid var(--color-bg-border);
}

/* ─── Card ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-card);
  padding: 32px;
  transition: all var(--transition-base);
}
.card:hover {
  border-color: var(--color-bg-border-light);
  background: var(--color-bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

/* ─── Divider ────────────────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--color-bg-border);
  margin: 0;
}

/* ─── Mono / Code ────────────────────────────────────────────────────────── */
.mono { font-family: var(--font-mono); }

/* ─── Image placeholder ──────────────────────────────────────────────────── */
.img-placeholder {
  background: var(--color-bg-card);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  text-align: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,229,160,0.03) 0%, transparent 50%);
}
.img-placeholder svg { opacity: 0.3; }

/* ─── Noise texture overlay ──────────────────────────────────────────────── */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ─── Section label ──────────────────────────────────────────────────────── */
.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 20px;
}
.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--color-primary);
}

/* ─── Grid helpers ───────────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ─── Fade-in animation ──────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.6s var(--transition-slow) both; }
.fade-up-d1 { animation-delay: 0.1s; }
.fade-up-d2 { animation-delay: 0.2s; }
.fade-up-d3 { animation-delay: 0.3s; }
.fade-up-d4 { animation-delay: 0.4s; }
.fade-up-d5 { animation-delay: 0.5s; }

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 var(--color-primary-glow); }
  50% { box-shadow: 0 0 24px 4px var(--color-primary-glow); }
}

/* ─── Scroll reveal via IntersectionObserver ─────────────────────────────── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.6s var(--transition-slow), transform 0.6s var(--transition-slow); }
.reveal.visible { opacity: 1; transform: none; }

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .section { padding: var(--spacing-section-padding-mobile) 0; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  h1 { font-size: 2.2rem; }
}