/* ═══════════════════════════════════════════════════════
   FORGE ATLAS — Core Design System
   Cinematic futuristic AI platform
   ═══════════════════════════════════════════════════════ */

:root {
  /* ── Color Palette ─────────────────────────────── */
  --bg-void: #03060d;
  --bg-deep: #070b18;
  --bg-surface: #0c1224;
  --bg-elevated: #111a33;
  --bg-glass: rgba(12, 18, 36, 0.7);

  --cyan: #00d4ff;
  --cyan-dim: #00d4ff33;
  --cyan-glow: #00d4ff80;
  --blue: #0099ff;
  --blue-dim: #0099ff33;
  --violet: #7c3aed;
  --violet-dim: #7c3aed33;
  --silver: #c0cce8;
  --white: #f0f4ff;

  --text-primary: #e8ecf8;
  --text-secondary: #9aabc8;
  --text-tertiary: #5a6b88;
  --text-disabled: #3a4560;

  --border-subtle: rgba(0, 212, 255, 0.08);
  --border-default: rgba(0, 212, 255, 0.15);
  --border-strong: rgba(0, 212, 255, 0.3);

  --gradient-cyan: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
  --gradient-violet: linear-gradient(135deg, #0099ff 0%, #7c3aed 100%);
  --gradient-full: linear-gradient(135deg, #00d4ff 0%, #0099ff 50%, #7c3aed 100%);
  --gradient-text: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);

  --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
  --shadow-glow-strong: 0 0 60px rgba(0, 212, 255, 0.3);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.6);

  /* ── Typography ───────────────────────────────── */
  --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --font-display: ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* ── Spacing ──────────────────────────────────── */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* ── Layout ───────────────────────────────────── */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --max-width: 1200px;
  --header-height: 72px;

  /* ── Motion ───────────────────────────────────── */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 200ms;
  --dur-default: 400ms;
  --dur-slow: 800ms;
  --dur-cinematic: 1200ms;
}

/* ── Reset ──────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg-void);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img, svg { display: block; max-width: 100%; }

/* ── Scrollbar ──────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-void); }
::-webkit-scrollbar-thumb { background: var(--border-default); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan-dim); }

/* ── Focus ──────────────────────────────────────── */
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

/* ── Typography ────────────────────────────────── */
.display {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.display .gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); font-weight: 600; }
p { font-size: 1rem; line-height: 1.7; }
.lead { font-size: clamp(1.125rem, 2vw, 1.375rem); line-height: 1.6; color: var(--text-secondary); }

/* ── Layout Utilities ──────────────────────────── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }
.section { padding: var(--space-3xl) 0; position: relative; }
.section-header { text-align: center; margin-bottom: var(--space-2xl); }
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: var(--space-md);
}

/* ── Buttons ────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--dur-default) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-cyan);
  color: var(--bg-void);
  box-shadow: 0 4px 24px rgba(0, 212, 255, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.5);
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transform: translateX(-100%);
  transition: transform var(--dur-slow) var(--ease-out);
}
.btn-primary:hover::after { transform: translateX(100%); }

.btn-secondary {
  background: var(--bg-glass);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  backdrop-filter: blur(12px);
}
.btn-secondary:hover {
  border-color: var(--cyan);
  background: var(--cyan-dim);
  transform: translateY(-2px);
}

.btn-ghost {
  padding: 10px 20px;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
}
.btn-ghost:hover { color: var(--cyan); background: var(--cyan-dim); }

/* ── Cards ──────────────────────────────────────── */
.card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  backdrop-filter: blur(12px);
  transition: all var(--dur-default) var(--ease-out);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity var(--dur-default) var(--ease-out);
}
.card:hover {
  border-color: var(--border-default);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.card:hover::before { opacity: 1; }

/* ── Glass Panel ────────────────────────────────── */
.glass {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

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

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ── Badge ──────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-cyan { background: var(--cyan-dim); color: var(--cyan); }
.badge-violet { background: var(--violet-dim); color: var(--violet); }

/* ── Background Effects ─────────────────────────── */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}
.bg-radial {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 80%, rgba(124, 58, 237, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ── Reduced Motion ─────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}