/* ===========================================================
   TOME & TABLETOP — Design Tokens + Base CSS
   Palette: deep midnight + gold/amber accent + warm cream text
   =========================================================== */

:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(2.5rem, 0.8rem + 5.2vw, 5.5rem);

  /* 4px spacing system */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-luxe: 420ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Fonts */
  --font-display: 'Cinzel', 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Satoshi', 'Work Sans', 'Helvetica Neue', sans-serif;

  /* Brand palette — shared (gold accent constant) */
  --gold: #E8AF34;
  --gold-bright: #F0C25A;
  --gold-deep: #D4AF37;
  --gold-soft: #C9A23F;
}

/* ---------- LIGHT MODE ---------- */
:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #F7F6F2;
  --color-surface: #FBFAF6;
  --color-surface-2: #F3F1EA;
  --color-surface-offset: #EDEAE0;
  --color-surface-elev: #FFFFFF;
  --color-divider: #DDD9CE;
  --color-border: #D2CDBE;

  /* Text */
  --color-text: #1A1A2E;
  --color-text-muted: #5A5867;
  --color-text-faint: #9A9788;
  --color-text-inverse: #F5F5DC;

  /* Primary accent (gold) */
  --color-primary: #B8860B;
  --color-primary-hover: #9A7008;
  --color-primary-active: #7C5806;
  --color-primary-soft: rgba(184, 134, 11, 0.12);

  /* Midnight surface for contrast cards */
  --color-midnight: #1A1A2E;
  --color-midnight-2: #16213E;
  --color-on-midnight: #F5F5DC;
  --color-on-midnight-muted: rgba(245, 245, 220, 0.7);

  --shadow-sm: 0 1px 2px rgba(26, 26, 46, 0.08);
  --shadow-md: 0 6px 18px rgba(26, 26, 46, 0.10);
  --shadow-lg: 0 18px 48px rgba(26, 26, 46, 0.16);
  --shadow-gold: 0 12px 40px rgba(232, 175, 52, 0.22);

  --hero-overlay: linear-gradient(180deg, rgba(26,26,46,0.25) 0%, rgba(26,26,46,0.55) 100%);
}

/* ---------- DARK MODE ---------- */
[data-theme='dark'] {
  /* Surfaces */
  --color-bg: #1A1A2E;
  --color-surface: #20203A;
  --color-surface-2: #26263F;
  --color-surface-offset: #2A2A45;
  --color-surface-elev: #2E2E4A;
  --color-divider: #34344F;
  --color-border: #3C3C5A;

  /* Text */
  --color-text: #F5F5DC;
  --color-text-muted: #B5B5A0;
  --color-text-faint: #7A7A8E;
  --color-text-inverse: #1A1A2E;

  /* Primary accent (gold) */
  --color-primary: #E8AF34;
  --color-primary-hover: #F0C25A;
  --color-primary-active: #F6D479;
  --color-primary-soft: rgba(232, 175, 52, 0.14);

  --color-midnight: #16213E;
  --color-midnight-2: #12122A;
  --color-on-midnight: #F5F5DC;
  --color-on-midnight-muted: rgba(245, 245, 220, 0.7);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.55);
  --shadow-gold: 0 12px 40px rgba(232, 175, 52, 0.28);

  --hero-overlay: linear-gradient(180deg, rgba(22,33,62,0.55) 0%, rgba(26,26,46,0.82) 100%);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #1A1A2E;
    --color-surface: #20203A;
    --color-surface-2: #26263F;
    --color-surface-offset: #2A2A45;
    --color-surface-elev: #2E2E4A;
    --color-divider: #34344F;
    --color-border: #3C3C5A;
    --color-text: #F5F5DC;
    --color-text-muted: #B5B5A0;
    --color-text-faint: #7A7A8E;
    --color-text-inverse: #1A1A2E;
    --color-primary: #E8AF34;
    --color-primary-hover: #F0C25A;
    --color-primary-active: #F6D479;
    --color-primary-soft: rgba(232, 175, 52, 0.14);
    --color-midnight: #16213E;
    --color-midnight-2: #12122A;
    --color-on-midnight: #F5F5DC;
    --color-on-midnight-muted: rgba(245, 245, 220, 0.7);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.55);
    --shadow-gold: 0 12px 40px rgba(232, 175, 52, 0.28);
    --hero-overlay: linear-gradient(180deg, rgba(22,33,62,0.55) 0%, rgba(26,26,46,0.82) 100%);
  }
}

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

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul[role='list'],
ol[role='list'] {
  list-style: none;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.15;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
}

p, li, figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

::selection {
  background: rgba(232, 175, 52, 0.28);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

a,
button,
[role='button'],
[role='link'],
input,
textarea,
select {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}