/**
 * Design tokens — Billion Dollar Project Grade (Ultra Premium Light)
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* Ultra Premium Light Mode */
  --color-bg-page: #FAFAFA;
  --color-bg-page-warm: #F4F4F5;
  --color-bg-card: rgba(255, 255, 255, 0.65);
  --color-bg-card-elevated: rgba(255, 255, 255, 0.9);
  --color-bg-sidebar: rgba(250, 250, 250, 0.6);
  --color-bg-sidebar-blur: var(--blur-lg);
  --color-bg-input: rgba(255, 255, 255, 0.8);
  --color-bg-overlay: rgba(0, 0, 0, 0.3);

  /* AI Glowing Orbs for glassmorphism */
  --gradient-orb-1: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 500px);
  --gradient-orb-2: radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.12) 0%, transparent 600px);
  --gradient-orb-3: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.1) 0%, transparent 700px);
  --gradient-mesh: var(--gradient-orb-1), var(--gradient-orb-2), var(--gradient-orb-3);

  /* Text Colors */
  --color-text-primary: #09090B;
  /* Almost pure black */
  --color-text-secondary: #52525B;
  /* Elegant gray */
  --color-text-muted: #A1A1AA;
  --color-text-inverse: #FFFFFF;

  /* Borders */
  --color-border: rgba(9, 9, 11, 0.08);
  --color-border-subtle: rgba(9, 9, 11, 0.04);
  --color-border-focus: rgba(9, 9, 11, 0.2);
  --color-border-glass: rgba(255, 255, 255, 0.4);

  /* Accents */
  --color-accent: #09090B;
  --color-accent-hover: #27272A;
  --color-accent-muted: #71717A;
  --color-accent-light: rgba(9, 9, 11, 0.04);

  /* The "Magic" AI Gradient */
  --color-ai-gradient: linear-gradient(135deg, #8B5CF6 0%, #D946EF 50%, #F43F5E 100%);
  --color-ai-gradient-hover: linear-gradient(135deg, #7C3AED 0%, #C026D3 50%, #E11D48 100%);
  --color-ai-glow: 0 0 0 1px rgba(217, 70, 239, 0.1), 0 12px 32px -8px rgba(217, 70, 239, 0.3);
  --color-ai-text: transparent;

  --color-google: #09090B;
  --color-google-hover: #27272A;

  /* Shadows (Physical depth & softness) */
  --shadow-xs: 0 1px 2px rgba(9, 9, 11, 0.04);
  --shadow-sm: 0 2px 8px rgba(9, 9, 11, 0.04);
  --shadow-md: 0 8px 16px -4px rgba(9, 9, 11, 0.04), 0 4px 8px -2px rgba(9, 9, 11, 0.02);
  --shadow-lg: 0 16px 32px -8px rgba(9, 9, 11, 0.08);
  --shadow-xl: 0 24px 64px -12px rgba(9, 9, 11, 0.12);

  /* Specialty Shadows */
  --shadow-float: 0 0 0 1px rgba(9, 9, 11, 0.03), 0 32px 80px -16px rgba(9, 9, 11, 0.12);
  --shadow-modal: 0 0 0 1px rgba(255, 255, 255, 0.6), 0 0 0 1px rgba(9, 9, 11, 0.05) inset, 0 48px 100px -20px rgba(9, 9, 11, 0.2);
  --shadow-card-hover: 0 0 0 1px rgba(9, 9, 11, 0.05), 0 12px 24px -8px rgba(9, 9, 11, 0.06);
  --shadow-inner: inset 0 2px 4px 0 rgba(255, 255, 255, 0.3), inset 0 -2px 4px 0 rgba(9, 9, 11, 0.02);
  --shadow-button: 0 1px 2px rgba(9, 9, 11, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  --shadow-button-ai: 0 2px 8px rgba(217, 70, 239, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);

  /* Blurs for Glassmorphism */
  --blur-sm: 8px;
  --blur-md: 16px;
  --blur-lg: 32px;
  --blur-xl: 64px;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.75rem;
  --text-5xl: 3.5rem;
  --text-6xl: 4.5rem;
  --text-7xl: 5.5rem;

  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  --leading-tight: 1.15;
  --leading-snug: 1.4;
  --leading-normal: 1.6;

  --tracking-tight: -0.02em;
  --tracking-tighter: -0.03em;

  /* Radii */
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-2xl: 40px;
  --radius-full: 9999px;

  /* Motion */
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.1);
  /* Bouncy Apple feel */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-circ: cubic-bezier(0.85, 0, 0.15, 1);
  --ease-smooth: cubic-bezier(0.25, 1, 0.5, 1);

  --duration-fast: 0.2s;
  --duration-normal: 0.4s;
  --duration-slow: 0.6s;

  /* Layout */
  --sidebar-width: 280px;
  --header-height: 72px;
  --breakpoint-md: 820px;
  --content-max: 900px;
}