/* ============================================
   LIBRIQ DESIGN TOKENS
   Single source of truth for all design values
   ============================================ */

:root {
  /* Typography */
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-display: var(--font-serif);
  --font-ui: var(--font-sans);
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --t-display: clamp(2.5rem, 8vw, 6rem);
  --t-h2: clamp(1.6rem, 4vw, 2.8rem);
  --t-h1-app: clamp(1.25rem, 5vw, 1.75rem);
  --t-stat: clamp(1.4rem, 4vw, 1.875rem);
  --t-card: 0.9375rem;
  --t-body-lg: clamp(0.9rem, 2.5vw, 1.125rem);
  --t-body: 0.875rem;
  --t-sm: 0.8rem;
  --t-xs: 0.72rem;
  --t-eyebrow: 0.72rem;

  --text-xs: var(--t-xs);
  --text-sm: var(--t-sm);
  --text-base: var(--t-body);
  --text-md: 1.0625rem;
  --text-lg: var(--t-body-lg);
  --text-xl: var(--t-h2);
  --text-2xl: var(--t-h1-app);
  --text-3xl: var(--t-display);

  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semi: 600;
  --weight-bold: 700;

  --leading-tight: 1.15;
  --leading-snug: 1.25;
  --leading-normal: 1.65;
  --leading-loose: 1.75;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* Radius */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 20px;
  --r-2xl: 24px;
  --r-phone: 36px;
  --r-pill: 9999px;
  --radius-sm: var(--r-sm);
  --radius-md: var(--r-md);
  --radius-lg: var(--r-lg);
  --radius-xl: var(--r-xl);
  --radius-full: var(--r-pill);

  /* Shadows and glows */
  --shadow-card: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-cover: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-modal: 0 40px 80px rgba(0,0,0,0.6);
  --shadow-frame: 0 32px 64px rgba(0,0,0,0.55), 0 0 80px rgba(201,168,76,0.03);
  --shadow-phone: 0 48px 96px rgba(0,0,0,0.6), 0 0 120px rgba(201,168,76,0.06);
  --glow-gold: 0 0 12px rgba(201,168,76,0.40);
  --glow-green: 0 0 12px rgba(107,170,117,0.40);
  --shadow-sm: var(--shadow-cover);
  --shadow-md: var(--shadow-card);
  --shadow-lg: var(--shadow-modal);
  --shadow-xl: var(--shadow-modal);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-inout: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 120ms;
  --duration-base: 200ms;
  --duration-slow: 350ms;
  --duration-slower: 500ms;

  /* Layout */
  --sidebar-width: 240px;
  --topbar-height: 56px;
  --content-max: 1200px;

  /* Surfaces */
  --bg: #0D0C0A;
  --surface-1: #0E0D0B;
  --surface-2: #111009;
  --surface-3: #141210;
  --surface-4: #1A1814;
  --bg-base: var(--bg);
  --bg-surface: var(--surface-1);
  --bg-elevated: var(--surface-2);
  --bg-overlay: var(--surface-3);
  --bg-hover: rgba(255,255,255,0.05);
  --bg-active: rgba(255,255,255,0.08);

  /* Gold accent ramp */
  --gold: #C9A84C;
  --gold-hover: #D8B65A;
  --gold-strong: #8B6E2E;
  --gold-04: rgba(201,168,76,0.04);
  --gold-06: rgba(201,168,76,0.06);
  --gold-08: rgba(201,168,76,0.08);
  --gold-10: rgba(201,168,76,0.10);
  --gold-12: rgba(201,168,76,0.12);
  --gold-18: rgba(201,168,76,0.18);
  --gold-22: rgba(201,168,76,0.22);
  --accent: var(--gold);
  --accent-dim: var(--gold-12);
  --accent-hover: var(--gold-hover);
  --accent-muted: var(--gold-strong);

  /* Text */
  --text-strong: #F5F0E8;
  --text-primary: #D5CCBE;
  --text-body: #9B9083;
  --text-muted: #8A7E70;
  --text-dim: #7A6E60;
  --text-faint: #4A4438;
  --text-secondary: var(--text-body);
  --text-tertiary: var(--text-dim);
  --text-inverse: var(--bg);
  --text-accent: var(--gold);

  /* Borders */
  --border-hairline: rgba(201,168,76,0.07);
  --border-soft: rgba(255,255,255,0.06);
  --border-divider: rgba(255,255,255,0.03);
  --border-subtle: var(--border-hairline);
  --border-default: var(--gold-12);
  --border-strong: var(--gold-18);

  /* Semantic colors */
  --green: #6BAA75;
  --green-deep: #4E9E62;
  --blue: #7B9DC9;
  --orange: #E87B4B;
  --purple: #7B6ABA;
  --red: #9B5E5E;
  --danger: #D4574E;
  --color-success: var(--green);
  --color-success-dim: rgba(107,170,117,0.18);
  --color-warning: var(--orange);
  --color-warning-dim: rgba(232,123,75,0.18);
  --color-danger: var(--danger);
  --color-danger-dim: rgba(212,87,78,0.18);
  --color-info: var(--blue);
  --color-info-dim: rgba(123,157,201,0.18);

  /* Status badges */
  --status-reading: var(--blue);
  --status-finished: var(--green);
  --status-wishlist: var(--gold);
  --status-dnf: var(--red);

  /* Chart genre palette */
  --chart-1: #C9A84C;
  --chart-2: #7B6ABA;
  --chart-3: #4A8FA8;
  --chart-4: #6BAA75;
  --chart-5: #8BAD5A;

  /* Scrollbar */
  --scrollbar-track: var(--surface-1);
  --scrollbar-thumb: var(--surface-4);

  color-scheme: dark;
}

/* ============================================
   THEME COMPATIBILITY
   ============================================ */
[data-theme="dark"] {
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #F5F2EC;
  --surface-1: #FDFAF6;
  --surface-2: #FFFFFF;
  --surface-3: #F0EBE1;
  --surface-4: #E8E0D2;
  --bg-base: var(--bg);
  --bg-surface: var(--surface-1);
  --bg-elevated: var(--surface-2);
  --bg-overlay: var(--surface-3);
  --bg-hover: rgba(0,0,0,0.04);
  --bg-active: rgba(0,0,0,0.07);

  --gold: #9A6F1E;
  --gold-hover: #7D5A18;
  --gold-strong: #7D5A18;
  --gold-04: rgba(154,111,30,0.04);
  --gold-06: rgba(154,111,30,0.06);
  --gold-08: rgba(154,111,30,0.08);
  --gold-10: rgba(154,111,30,0.10);
  --gold-12: rgba(154,111,30,0.12);
  --gold-18: rgba(154,111,30,0.18);
  --gold-22: rgba(154,111,30,0.22);
  --accent: var(--gold);
  --accent-dim: var(--gold-12);
  --accent-hover: var(--gold-hover);
  --accent-muted: #C9A84C;

  --text-strong: #1A1825;
  --text-primary: #1A1825;
  --text-body: #5E5C6E;
  --text-muted: #5E5C6E;
  --text-dim: #6E6A79;
  --text-faint: #9896A4;
  --text-secondary: var(--text-body);
  --text-tertiary: var(--text-faint);
  --text-inverse: #FDFAF6;
  --text-accent: var(--gold);

  --border-hairline: rgba(0,0,0,0.05);
  --border-soft: rgba(0,0,0,0.09);
  --border-divider: rgba(0,0,0,0.04);
  --border-subtle: var(--border-hairline);
  --border-default: var(--border-soft);
  --border-strong: rgba(0,0,0,0.16);

  --green: #2E8B5C;
  --green-deep: #276F4B;
  --blue: #2E6FB5;
  --orange: #C97230;
  --purple: #6754A6;
  --red: #8F4A4A;
  --danger: #C94040;
  --color-success: var(--green);
  --color-success-dim: rgba(46,139,92,0.12);
  --color-warning: var(--orange);
  --color-warning-dim: rgba(201,114,48,0.12);
  --color-danger: var(--danger);
  --color-danger-dim: rgba(201,64,64,0.12);
  --color-info: var(--blue);
  --color-info-dim: rgba(46,111,181,0.12);

  --status-reading: var(--blue);
  --status-finished: var(--green);
  --status-wishlist: var(--gold);
  --status-dnf: var(--text-body);

  --scrollbar-track: var(--surface-3);
  --scrollbar-thumb: #D4CCBB;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.06);
  --shadow-xl: 0 24px 56px rgba(0,0,0,.16), 0 8px 20px rgba(0,0,0,.08);
  --shadow-card: var(--shadow-md);
  --shadow-cover: var(--shadow-sm);
  --shadow-modal: var(--shadow-xl);

  color-scheme: light;
}