/* ============================================================
   RT 72 Vending — base.css
   CSS reset + design tokens (light & dark themes)
   ============================================================ */

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  padding: 0;
  line-height: 1.2;
}

p {
  margin: 0;
  padding: 0;
}

img, video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

/* ── Design Tokens — Light theme (default) ── */
:root,
[data-theme="light"] {
  /* Colors */
  --color-bg: #FAFAF8;
  --color-surface: #F0EDE8;
  --color-border: rgba(184, 115, 51, 0.2);
  --color-text: #1A1410;
  --color-muted: #6B5744;

  /* Copper / brand */
  --color-primary: #B87333;
  --color-primary-light: #D4975A;
  --color-primary-dark: #8E5520;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10), 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.14), 0 4px 12px rgba(0, 0, 0, 0.08);

  /* Spacing scale (0.25rem increments) */
  --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;

  /* Fluid 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(1.25rem,  1.1rem  + 1vw,    1.75rem);
  --text-2xl:  clamp(1.5rem,   1.2rem  + 1.5vw,  2.25rem);
  --text-3xl:  clamp(2rem,     1.5rem  + 2vw,    3rem);
  --text-4xl:  clamp(2.5rem,   1.8rem  + 3vw,    4rem);

  /* Fonts */
  --font-display: 'Cabinet Grotesk', system-ui, sans-serif;
  --font-body:    'Satoshi', system-ui, sans-serif;
}

/* ── Design Tokens — Dark theme ── */
[data-theme="dark"] {
  --color-bg:      #0F0D0B;
  --color-surface: #181310;
  --color-border:  rgba(184, 115, 51, 0.25);
  --color-text:    #F5EDE6;
  --color-muted:   #A08070;

  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.30), 0 1px 2px rgba(0, 0, 0, 0.20);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.40), 0 2px 6px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.55), 0 4px 12px rgba(0, 0, 0, 0.35);
}