/* Ashlr AO — Design System: Mission Control Noir */

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, textarea, select { font: inherit; }

/* ===== CSS Variables ===== */
:root {
  /* Colors — Dark (default) */
  --bg-primary: #050507;
  --bg-secondary: #0a0a0f;
  --bg-tertiary: #111118;
  --bg-card: rgba(14, 14, 22, 0.65);
  --bg-card-hover: rgba(22, 22, 35, 0.8);
  --bg-glass: rgba(8, 8, 14, 0.75);
  --border: rgba(255, 255, 255, 0.05);
  --border-hover: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(112, 108, 240, 0.25);
  --text-primary: #e8e8ec;
  --text-secondary: #8b8b9e;
  --text-tertiary: #55556a;
  --accent: #706CF0;
  --accent-light: #9590ff;
  --accent-dim: #5854c7;
  --accent-glow: rgba(112, 108, 240, 0.25);
  --accent-bg: rgba(112, 108, 240, 0.08);
  --success: #22C55E;
  --warning: #F59E0B;
  --error: #EF4444;

  /* Brand colors for backends */
  --claude-color: #D4A574;
  --codex-color: #10A37F;
  --aider-color: #58D68D;
  --goose-color: #F472B6;

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

  /* Spacing */
  --space-2xs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Effects */
  --glass-blur: blur(16px) saturate(1.2);
  --glass-blur-heavy: blur(24px) saturate(1.5);
  --glass-inner-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px var(--accent-glow);
  --shadow-glow-strong: 0 0 60px rgba(112, 108, 240, 0.35);

  /* Grid background */
  --grid-color: rgba(255, 255, 255, 0.02);
  --grid-size: 60px;
}

/* ===== Base Typography ===== */
body {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.75rem, 6vw, 4.5rem); font-weight: 700; }
h2 { font-size: clamp(1.875rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { color: var(--text-secondary); max-width: 60ch; line-height: 1.7; }

.text-gradient {
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 50%, var(--accent-dim) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ===== Section ===== */
.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header p {
  margin: var(--space-md) auto 0;
  font-size: 1.05rem;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-lg);
  padding: 6px 14px;
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  background: var(--accent-bg);
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ===== Glassmorphism Card ===== */
.glass {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md), var(--glass-inner-highlight);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg), var(--glass-inner-highlight);
  transform: translateY(-3px);
}

/* ===== Code Blocks ===== */
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

:not(pre) > code {
  background: var(--accent-bg);
  color: var(--accent-light);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-accent);
}

pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  overflow-x: auto;
  position: relative;
}

pre code {
  color: var(--text-primary);
  font-size: 0.85rem;
  line-height: 1.7;
}

/* ===== Utility ===== */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); border: 0;
}

/* ===== Scroll Animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.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; }

/* ===== Grid Background (global) ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse at 50% 30%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 0%, transparent 70%);
}

body > * {
  position: relative;
  z-index: 1;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .container { padding: 0 var(--space-md); }
  .section { padding: var(--space-3xl) 0; }
}