/**
 * Personal Digital Lab - Main Design System & Tokens
 * Author: Khalid Abdullah
 */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700;800&family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  /* Dark-First Palette (Default) */
  --bg-primary: #05070b;
  --bg-secondary: #090d15;
  --bg-surface: #0d121c;
  --bg-surface-elevated: #131926;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 240, 255, 0.4);

  /* Typography Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Restrained Strategic Accents */
  --accent-cyan: #00f0ff;
  --accent-cyan-glow: rgba(0, 240, 255, 0.25);
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #ef4444;

  /* Font Families */
  --font-sans: 'Geist', 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-display: 'Space Grotesk', 'Geist', sans-serif;
}

/* Light Theme Variable Overrides */
html.theme-light {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --border-color: rgba(0, 0, 0, 0.09);
  --border-hover: rgba(2, 132, 199, 0.4);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --accent-cyan: #0284c7;
  --accent-cyan-glow: rgba(2, 132, 199, 0.2);
}

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

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

html.theme-light {
  color-scheme: light;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  overflow-x: hidden;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-surface-elevated);
  border-radius: 9999px;
  border: 1px solid var(--border-color);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Selection */
::selection {
  background: var(--accent-cyan);
  color: #000000;
}

/* Utility Tokens Mapping to Tailwind Utilities */
.bg-surface { background-color: var(--bg-surface); }
.bg-surface-elevated { background-color: var(--bg-surface-elevated); }
.border-border { border-color: var(--border-color); }
.text-text-primary { color: var(--text-primary); }
.text-text-secondary { color: var(--text-secondary); }
.text-text-muted { color: var(--text-muted); }
.text-cyan { color: var(--accent-cyan); }
.bg-cyan { background-color: var(--accent-cyan); }
.hover\:bg-cyan-glow:hover { box-shadow: 0 0 20px var(--accent-cyan-glow); }