/* base.css — City of Rugs Design System */

*,
*::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-16);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

::selection {
  background: oklch(from var(--color-primary) l c h / 0.25);
  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);
}

.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;
}

/* =============================================
   DESIGN TOKENS — City of Rugs
   ============================================= */

:root {
  /* Type Scale (fluid clamp) */
  --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(3rem, 0.5rem + 7vw, 8rem);

  /* 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-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

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

  /* Font families */
  --font-display: 'Cormorant', 'Georgia', serif;
  --font-body: 'Work Sans', 'Helvetica Neue', sans-serif;
}

/* =============================================
   LIGHT MODE (default) — Warm Cream & Burgundy
   ============================================= */
:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #FAF7F0;
  --color-surface: #FDF9F3;
  --color-surface-2: #FFFFFF;
  --color-surface-offset: #F5F0E6;
  --color-surface-offset-2: #EDE7DA;
  --color-surface-dynamic: #E6DFCF;
  --color-divider: #DDD6C6;
  --color-border: #D4CCBB;

  /* Text */
  --color-text: #2C2420;
  --color-text-muted: #6B5E53;
  --color-text-faint: #A89A8C;
  --color-text-inverse: #FAF7F0;

  /* Primary — Deep Burgundy */
  --color-primary: #8B1A1A;
  --color-primary-hover: #6E1515;
  --color-primary-active: #511010;
  --color-primary-highlight: #F0D8D8;

  /* Secondary — Gold */
  --color-gold: #C4993C;
  --color-gold-hover: #A67E2E;
  --color-gold-active: #8A6720;
  --color-gold-highlight: #F5ECD5;

  /* Success */
  --color-success: #437A22;
  --color-success-highlight: #d4dfcc;

  /* Error */
  --color-error: #B91C1C;

  /* Shadows (warm-tinted) */
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 50 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.02 50 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.02 50 / 0.12);
  --shadow-xl: 0 20px 48px oklch(0.2 0.02 50 / 0.16);
}

/* =============================================
   DARK MODE — Rich & Warm
   ============================================= */
[data-theme='dark'] {
  --color-bg: #1A1614;
  --color-surface: #201C19;
  --color-surface-2: #262220;
  --color-surface-offset: #1E1A17;
  --color-surface-offset-2: #2A2522;
  --color-surface-dynamic: #332D29;
  --color-divider: #2E2925;
  --color-border: #3D3731;

  --color-text: #D9D0C5;
  --color-text-muted: #8C7F73;
  --color-text-faint: #5E5449;
  --color-text-inverse: #1A1614;

  --color-primary: #D4605E;
  --color-primary-hover: #C04543;
  --color-primary-active: #A53230;
  --color-primary-highlight: #3D2726;

  --color-gold: #D4A84A;
  --color-gold-hover: #BF9330;
  --color-gold-active: #A67E2E;
  --color-gold-highlight: #3D3525;

  --color-success: #6DAA45;
  --color-success-highlight: #3a4435;

  --color-error: #EF4444;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  --shadow-xl: 0 20px 48px oklch(0 0 0 / 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #1A1614;
    --color-surface: #201C19;
    --color-surface-2: #262220;
    --color-surface-offset: #1E1A17;
    --color-surface-offset-2: #2A2522;
    --color-surface-dynamic: #332D29;
    --color-divider: #2E2925;
    --color-border: #3D3731;
    --color-text: #D9D0C5;
    --color-text-muted: #8C7F73;
    --color-text-faint: #5E5449;
    --color-text-inverse: #1A1614;
    --color-primary: #D4605E;
    --color-primary-hover: #C04543;
    --color-primary-active: #A53230;
    --color-primary-highlight: #3D2726;
    --color-gold: #D4A84A;
    --color-gold-hover: #BF9330;
    --color-gold-active: #A67E2E;
    --color-gold-highlight: #3D3525;
    --color-success: #6DAA45;
    --color-success-highlight: #3a4435;
    --color-error: #EF4444;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
    --shadow-xl: 0 20px 48px oklch(0 0 0 / 0.5);
  }
}