/* ============================================================
   Bistro Pompidou — shared design tokens
   "Een vleugje Parijs in Antwerpen"
   Premium, minimal, confident. Warm neutral palette.
   Every page / webshop step links this file; do not redefine
   these tokens locally.
   ============================================================ */

/* ---------- 1. Design tokens ---------- */
:root {
  /* --- Palette: warm neutrals --- */
  --color-paper: #faf7f2;        /* page background, warm off-white   */
  --color-paper-alt: #f3ede3;    /* alternating section background    */
  --color-sand: #eae1d3;         /* cards, calm surfaces              */
  --color-stone: #d8ccb9;        /* borders, dividers                 */
  --color-ink: #211c16;          /* primary text, near-black warm     */
  --color-ink-soft: #4a4238;     /* secondary text                    */
  --color-muted: #8a7f70;        /* captions, meta, disabled          */
  --color-accent: #7a2e2e;       /* bordeaux — Parisian bistro accent */
  --color-accent-hover: #922f2f;
  --color-accent-ink: #faf7f2;   /* text on accent                    */
  --color-gold: #b08d57;         /* hairline highlights, small marks  */
  --color-overlay: rgba(33, 28, 22, 0.55);

  /* Semantic aliases */
  --bg: var(--color-paper);
  --bg-alt: var(--color-paper-alt);
  --surface: var(--color-sand);
  --text: var(--color-ink);
  --text-soft: var(--color-ink-soft);
  --text-muted: var(--color-muted);
  --border: var(--color-stone);
  --accent: var(--color-accent);

  /* --- Typography --- */
  --font-display: "Cormorant Garamond", "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Inter", "Helvetica Neue", Arial, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;

  /* Modular type scale (1.25 major third, fluid) */
  --step--2: clamp(0.69rem, 0.66rem + 0.14vw, 0.75rem);
  --step--1: clamp(0.83rem, 0.79rem + 0.20vw, 0.94rem);
  --step-0:  clamp(1.00rem, 0.95rem + 0.25vw, 1.13rem);
  --step-1:  clamp(1.25rem, 1.17rem + 0.40vw, 1.50rem);
  --step-2:  clamp(1.56rem, 1.43rem + 0.65vw, 2.00rem);
  --step-3:  clamp(1.95rem, 1.74rem + 1.05vw, 2.66rem);
  --step-4:  clamp(2.44rem, 2.10rem + 1.70vw, 3.55rem);
  --step-5:  clamp(3.05rem, 2.50rem + 2.75vw, 4.74rem);
  --step-6:  clamp(3.82rem, 2.95rem + 4.35vw, 6.32rem);

  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-loose: 1.8;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.08em;
  --tracking-wider: 0.16em;
  --tracking-widest: 0.24em;

  /* --- Spacing scale (0.25rem base, fluid section rhythm) --- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;
  --space-11: 12rem;

  --section-y: clamp(3.5rem, 7vw, 7.5rem);
  --gutter: clamp(1.25rem, 4vw, 3rem);

  /* --- Layout --- */
  --container: 72rem;
  --container-narrow: 46rem;
  --container-wide: 88rem;
  --grid-cols: 12;
  --grid-gap: clamp(1rem, 2.5vw, 2rem);

  /* --- Shape & elevation --- */
  --radius-sm: 2px;
  --radius-md: 6px;
  --radius-lg: 14px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(33, 28, 22, 0.06);
  --shadow-md: 0 8px 24px rgba(33, 28, 22, 0.08);
  --shadow-lg: 0 24px 60px rgba(33, 28, 22, 0.12);

  --border-hairline: 1px solid var(--border);

  /* --- Motion --- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 160ms;
  --dur-base: 280ms;
  --dur-slow: 520ms;

  /* --- Z-index --- */
  --z-base: 1;
  --z-sticky: 100;
  --z-nav: 200;
  --z-overlay: 300;
  --z-modal: 400;
}

/* ---------- 2. Reset / base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--step-0);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

a:hover {
  color: var(--accent);
}

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

/* ---------- 3. Typography primitives ---------- */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-weight: var(--weight-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text);
}

h1 { font-size: var(--step-6); }
h2 { font-size: var(--step-4); }
h3 { font-size: var(--step-3); }
h4 { font-size: var(--step-2); }
h5 { font-size: var(--step-1); }
h6 { font-size: var(--step-0); }

p {
  margin: 0 0 var(--space-4);
  color: var(--text-soft);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--accent);
}

.lead {
  font-size: var(--step-2);
  line-height: var(--leading-snug);
  color: var(--text);
  font-family: var(--font-display);
  font-weight: var(--weight-light);
}

.serif { font-family: var(--font-display); }
.mono { font-family: var(--font-mono); font-size: var(--step--1); }
.muted { color: var(--text-muted); }

/* ---------- 4. Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: var(--container-narrow); }
.container--wide { max-width: var(--container-wide); }

.section {
  padding-block: var(--section-y);
}

.section--alt {
  background-color: var(--bg-alt);
}

.section--sand {
  background-color: var(--surface);
}

.grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-cols), minmax(0, 1fr));
  gap: var(--grid-gap);
}

.stack > * + * { margin-top: var(--space-4); }
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.divider {
  border: 0;
  border-top: var(--border-hairline);
  margin-block: var(--space-7);
}

/* Hairline accent rule under a heading */
.rule-accent {
  width: 3rem;
  height: 2px;
  background-color: var(--color-gold);
  border: 0;
  margin: 0 0 var(--space-5);
}

/* ---------- 5. Components ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.btn--primary {
  background-color: var(--accent);
  color: var(--color-accent-ink);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-accent-ink);
  transform: translateY(-1px);
}

.btn--ghost {
  background-color: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--link {
  padding: 0;
  border-radius: 0;
  background: none;
  color: var(--accent);
  border-bottom: 1px solid currentColor;
}

.card {
  background-color: var(--color-paper);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero {
  position: relative;
  min-height: clamp(32rem, 78vh, 46rem);
  display: grid;
  place-items: center;
  text-align: center;
  background-color: var(--color-ink);
  color: var(--color-paper);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
}

.hero__inner {
  position: relative;
  z-index: var(--z-base);
  max-width: var(--container-narrow);
  padding-inline: var(--gutter);
}

.hero h1,
.hero p {
  color: var(--color-paper);
}

.menu-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.menu-list li {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-bottom: var(--border-hairline);
}

.menu-list .price {
  font-family: var(--font-mono);
  color: var(--accent);
  white-space: nowrap;
}

.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background-color: color-mix(in srgb, var(--color-paper) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-hairline);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  min-height: 4.5rem;
}

.nav a {
  font-size: var(--step--1);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-soft);
}

.footer {
  padding-block: var(--space-8);
  background-color: var(--color-ink);
  color: var(--color-sand);
}

.footer a { color: var(--color-sand); }
.footer a:hover { color: var(--color-gold); }

/* ---------- 6. Utilities ---------- */
.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 48rem) {
  .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .hide-mobile { display: none !important; }
}

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