/* ==========================================================================
   MTI Design System — Design Tokens
   Unified tokens from all Morph Tech Inc projects
   ========================================================================== */

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

/* ---------- Base / Root Tokens ---------- */
:root {
  /* — Spacing (4px base) — */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* — Typography — */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter', var(--font-body);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* — Border Radius — */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* — Shadows — */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);

  /* — Transitions — */
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 150ms var(--ease-default);
  --transition-normal: 250ms var(--ease-default);
  --transition-slow: 400ms var(--ease-default);

  /* — Z-Index Scale — */
  --z-behind: -1;
  --z-base: 0;
  --z-raised: 1;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-overlay: 30;
  --z-modal: 40;
  --z-popover: 50;
  --z-toast: 60;
  --z-tooltip: 70;
  --z-max: 100;
  --z-loading: 999;

  /* — Breakpoints (for reference; used in media queries) — */
  /* sm: 640px, md: 768px, lg: 1024px, xl: 1280px, 2xl: 1440px */
}

/* Dark Teal Theme */
[data-theme="dark-teal"], .theme-dark-teal {
  --color-bg-primary: #0a0f1a;
  --color-bg-secondary: #111827;
  --color-bg-tertiary: #1a2332;
  --color-bg-elevated: #1e293b;
  --color-bg-hover: #243244;
  --color-bg-active: #2d3d52;
  --color-surface: #151f2e;
  --color-surface-hover: #1c2a3d;
  --color-surface-border: #2a3a4e;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-tertiary: #64748b;
  --color-text-inverse: #0a0f1a;
  --color-border: #2a3a4e;
  --color-border-light: #1e293b;
  --color-border-focus: #2dd4bf;
  --color-accent: #2dd4bf;
  --color-accent-hover: #14b8a6;
  --color-accent-light: rgba(45, 212, 191, 0.15);
  --color-accent-text: #0a0f1a;
  --color-gold: #f59e0b;
  --color-gold-hover: #d97706;
  --color-gold-light: rgba(245, 158, 11, 0.15);
  --color-success: #10b981;
  --color-success-light: rgba(16, 185, 129, 0.15);
  --color-warning: #f59e0b;
  --color-warning-light: rgba(245, 158, 11, 0.15);
  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;
  --color-danger-light: rgba(239, 68, 68, 0.15);
  --color-info: #3b82f6;
  --color-info-light: rgba(59, 130, 246, 0.15);
  --color-purple: #a78bfa;
  --color-purple-light: rgba(167, 139, 250, 0.15);
  --color-input-bg: #1a2332;
  --color-input-border: #2a3a4e;
  --color-input-focus: #2dd4bf;
  --color-input-placeholder: #64748b;
  --color-code-bg: #0d1321;
  --color-code-text: #e2e8f0;
  --color-scrollbar-track: #111827;
  --color-scrollbar-thumb: #2a3a4e;
  color-scheme: dark;
}

/* Purple Violet Theme */
[data-theme="purple-violet"], .theme-purple-violet {
  --color-bg-primary: #0f0a1a;
  --color-bg-secondary: #160f27;
  --color-bg-tertiary: #1e1533;
  --color-bg-elevated: #261b3e;
  --color-bg-hover: #2f2248;
  --color-bg-active: #382a52;
  --color-surface: #1a1230;
  --color-surface-hover: #22183d;
  --color-surface-border: #3a2a5e;
  --color-text-primary: #f3f0f9;
  --color-text-secondary: #a78bfa;
  --color-text-tertiary: #7c6aad;
  --color-text-inverse: #0f0a1a;
  --color-border: #3a2a5e;
  --color-border-light: #261b3e;
  --color-border-focus: #a78bfa;
  --color-accent: #a78bfa;
  --color-accent-hover: #8b5cf6;
  --color-accent-light: rgba(167, 139, 250, 0.15);
  --color-accent-text: #0f0a1a;
  --color-gold: #fbbf24;
  --color-gold-hover: #f59e0b;
  --color-gold-light: rgba(251, 191, 36, 0.15);
  --color-success: #34d399;
  --color-success-light: rgba(52, 211, 153, 0.15);
  --color-warning: #fbbf24;
  --color-warning-light: rgba(251, 191, 36, 0.15);
  --color-danger: #f87171;
  --color-danger-hover: #ef4444;
  --color-danger-light: rgba(248, 113, 113, 0.15);
  --color-info: #60a5fa;
  --color-info-light: rgba(96, 165, 250, 0.15);
  --color-purple: #c4b5fd;
  --color-purple-light: rgba(196, 181, 253, 0.15);
  --color-input-bg: #1e1533;
  --color-input-border: #3a2a5e;
  --color-input-focus: #a78bfa;
  --color-input-placeholder: #7c6aad;
  --color-code-bg: #0d0819;
  --color-code-text: #e8e0f0;
  --color-scrollbar-track: #160f27;
  --color-scrollbar-thumb: #3a2a5e;
  color-scheme: dark;
}

/* Deep Sea Theme */
[data-theme="deep-sea"], .theme-deep-sea {
  --color-bg-primary: #0a1628;
  --color-bg-secondary: #0f1d33;
  --color-bg-tertiary: #152640;
  --color-bg-elevated: #1a2e4a;
  --color-bg-hover: #1f3654;
  --color-bg-active: #254060;
  --color-surface: #122238;
  --color-surface-hover: #182a44;
  --color-surface-border: #254060;
  --color-text-primary: #e8f0f8;
  --color-text-secondary: #7eb8e0;
  --color-text-tertiary: #5a8ab0;
  --color-text-inverse: #0a1628;
  --color-border: #254060;
  --color-border-light: #1a2e4a;
  --color-border-focus: #38bdf8;
  --color-accent: #38bdf8;
  --color-accent-hover: #0ea5e9;
  --color-accent-light: rgba(56, 189, 248, 0.15);
  --color-accent-text: #0a1628;
  --color-gold: #facc15;
  --color-gold-hover: #eab308;
  --color-gold-light: rgba(250, 204, 21, 0.15);
  --color-success: #22c55e;
  --color-success-light: rgba(34, 197, 94, 0.15);
  --color-warning: #facc15;
  --color-warning-light: rgba(250, 204, 21, 0.15);
  --color-danger: #f87171;
  --color-danger-hover: #ef4444;
  --color-danger-light: rgba(248, 113, 113, 0.15);
  --color-info: #38bdf8;
  --color-info-light: rgba(56, 189, 248, 0.15);
  --color-purple: #a78bfa;
  --color-purple-light: rgba(167, 139, 250, 0.15);
  --color-input-bg: #152640;
  --color-input-border: #254060;
  --color-input-focus: #38bdf8;
  --color-input-placeholder: #5a8ab0;
  --color-code-bg: #081220;
  --color-code-text: #d8e8f4;
  --color-scrollbar-track: #0f1d33;
  --color-scrollbar-thumb: #254060;
  color-scheme: dark;
}

/* Light Mode Override */
[data-mode="light"] {
  --color-bg-primary: #f8fafc;
  --color-bg-secondary: #f1f5f9;
  --color-bg-tertiary: #e2e8f0;
  --color-bg-elevated: #ffffff;
  --color-bg-hover: #e2e8f0;
  --color-bg-active: #cbd5e1;
  --color-surface: #ffffff;
  --color-surface-hover: #f8fafc;
  --color-surface-border: #e2e8f0;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94a3b8;
  --color-text-inverse: #f8fafc;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-input-bg: #ffffff;
  --color-input-border: #cbd5e1;
  --color-input-placeholder: #94a3b8;
  --color-code-bg: #f1f5f9;
  --color-code-text: #334155;
  --color-scrollbar-track: #f1f5f9;
  --color-scrollbar-thumb: #cbd5e1;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.06), 0 4px 6px rgba(0, 0, 0, 0.03);
  color-scheme: light;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--color-scrollbar-thumb); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { opacity: 0.8; }

::selection {
  background: var(--color-accent-light);
  color: var(--color-accent);
}