/* ==========================================================================
   Tycana Design Tokens
   Single source of truth for colors, typography, spacing, and visual properties.
   Distributed to both surfaces via `make design-sync`.
   ========================================================================== */

/* --- Font declarations --- */

@font-face {
  font-family: 'Geist Sans';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/GeistVF.woff2') format('woff2');
}

@font-face {
  font-family: 'Geist Mono';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/GeistMonoVF.woff2') format('woff2');
}

/* --- Design tokens --- */

:root {
  color-scheme: light;

  /* --- Base palette: zinc (cool neutrals, no warm/brown cast) --- */
  --neutral-50: #fafafa;
  --neutral-100: #f4f4f5;
  --neutral-200: #e4e4e7;
  --neutral-300: #d4d4d8;
  --neutral-400: #a1a1aa;
  --neutral-500: #71717a;
  --neutral-600: #52525b;
  --neutral-700: #3f3f46;
  --neutral-800: #27272a;
  --neutral-900: #18181b;
  --neutral-950: #09090b;

  --purple-50: #faf5ff;
  --purple-100: #f3e8ff;
  --purple-200: #e9d5ff;
  --purple-300: #d8b4fe;
  --purple-400: #c084fc;
  --purple-500: #a855f7;
  --purple-600: #9333ea;
  --purple-700: #7c3aed;
  --purple-800: #6d28d9;
  --purple-900: #5b21b6;
  --purple-950: #3b0764;

  --green-500: #10b981;
  --blue-400: #60a5fa;

  /* --- Semantic aliases (LIGHT mode defaults) --- */
  --color-bg: #ffffff;
  --color-bg-subtle: var(--neutral-50);
  --color-bg-muted: var(--neutral-100);
  --color-bg-alt: #f4f2fa;
  --color-bg-accent: #eae4f5;
  --color-surface: #ffffff;
  --color-surface-hover: #f8f5ff;
  --color-text: #0f0f18;
  --color-text-secondary: #3a3a52;
  --color-text-muted: #6b6b88;
  --color-text-inverse: #ffffff;
  --color-border: rgba(0, 0, 0, 0.07);
  --color-border-strong: rgba(0, 0, 0, 0.12);
  --color-primary: var(--purple-700);
  --color-primary-hover: var(--purple-800);
  --color-primary-glow: rgba(124, 58, 237, 0.35);
  --color-primary-subtle: rgba(124, 58, 237, 0.1);
  --color-primary-text: #ffffff;
  --color-accent: var(--purple-500);
  --color-success: var(--green-500);
  --color-info: var(--blue-400);

  /* --- State colors (flash messages, badges, alerts) --- */
  --color-danger: #dc2626;
  --color-danger-hover: #b91c1c;
  --color-danger-bg: #fef2f2;
  --color-danger-text: #991b1b;
  --color-danger-border: #fecaca;
  --color-success-bg: #f0fdf4;
  --color-success-text: #166534;
  --color-success-border: #bbf7d0;
  --color-warning-bg: #fffbeb;
  --color-warning-text: #92400e;
  --color-warning-border: #fde68a;
  --color-info-bg: #eff6ff;
  --color-info-text: #1e40af;
  --color-info-border: #bfdbfe;
  --color-error-bg: #fef2f2;
  --color-error-text: #991b1b;
  --color-error-border: #fecaca;

  --color-code-bg: var(--neutral-50);
  --color-terminal-bg: var(--neutral-900);

  /* --- Typography --- */
  --font-sans: 'Geist Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', 'SF Mono', Consolas, monospace;

  /* --- Type scale (minor third, ratio 1.2, base 16px) --- */
  --text-xs: 0.694rem;    /* ~11px */
  --text-sm: 0.833rem;    /* ~13px */
  --text-base: 1rem;      /* 16px */
  --text-md: 1.2rem;      /* ~19px */
  --text-lg: 1.44rem;     /* ~23px */
  --text-xl: 1.728rem;    /* ~28px */
  --text-2xl: 2.074rem;   /* ~33px */
  --text-3xl: 2.488rem;   /* ~40px */
  --text-4xl: 2.986rem;   /* ~48px */

  /* --- Spacing (4px grid) --- */
  --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 */

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

  /* --- Shadows --- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
  --shadow-card:
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 8px 32px rgba(0, 0, 0, 0.07);
  --shadow-card-hover:
    0 8px 24px rgba(124, 58, 237, 0.12),
    0 20px 60px rgba(0, 0, 0, 0.1);
  --shadow-window:
    0 0 0 1px rgba(0, 0, 0, 0.1),
    0 32px 100px rgba(0, 0, 0, 0.18);
  --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.15);

  /* --- Transitions --- */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Dark mode overrides (class-based for user toggle) --- */

html[data-theme="dark"] {
  color-scheme: dark;
  --color-bg: #050510;
  --color-bg-subtle: #0a0a18;
  --color-bg-muted: #12122a;
  --color-bg-alt: #0a0a1a;
  --color-bg-accent: #0f081e;
  --color-surface: #14142a;
  --color-surface-hover: #1c1c38;
  --color-text: #efeffa;
  --color-text-secondary: #b0b0cc;
  --color-text-muted: #6868a0;
  --color-text-inverse: #050510;
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-strong: rgba(255, 255, 255, 0.12);
  --color-primary: var(--purple-400);
  --color-primary-hover: var(--purple-300);
  --color-primary-glow: rgba(192, 132, 252, 0.3);
  --color-primary-subtle: rgba(124, 58, 237, 0.1);
  --color-primary-text: #050510;
  --color-accent: var(--purple-400);
  --color-danger: #ef4444;
  --color-danger-hover: #f87171;
  --color-danger-bg: rgba(239, 68, 68, 0.1);
  --color-danger-text: #fca5a5;
  --color-danger-border: rgba(239, 68, 68, 0.2);
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-success-text: #6ee7b7;
  --color-success-border: rgba(16, 185, 129, 0.2);
  --color-warning-bg: rgba(245, 158, 11, 0.1);
  --color-warning-text: #fcd34d;
  --color-warning-border: rgba(245, 158, 11, 0.2);
  --color-info-bg: rgba(96, 165, 250, 0.1);
  --color-info-text: #93c5fd;
  --color-info-border: rgba(96, 165, 250, 0.2);
  --color-error-bg: rgba(239, 68, 68, 0.1);
  --color-error-text: #fca5a5;
  --color-error-border: rgba(239, 68, 68, 0.2);
  --color-code-bg: #12122a;
  --color-terminal-bg: #030308;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
  --shadow-card:
    0 2px 8px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.04);
  --shadow-card-hover:
    0 12px 48px rgba(0, 0, 0, 0.6),
    0 0 48px rgba(124, 58, 237, 0.1),
    0 0 0 1px rgba(139, 92, 246, 0.2);
  --shadow-window:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 32px 100px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 60px rgba(124, 58, 237, 0.2);
}