/* UNNIBO global styling. Requires tokens.css. */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + var(--space-4));
}
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-background);
  color: var(--color-text-primary);
  font-family: var(--font-ui);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--dur-major) var(--ease), color var(--dur-major) var(--ease);
}
body:has(dialog[open]) { overflow: hidden; }

img, svg, video, picture { display: block; max-width: 100%; }
img { height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: transparent; }

.prose a, p a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
.prose a:hover, p a:hover { text-decoration-thickness: 2px; }

h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: var(--weight-bold); text-wrap: balance; letter-spacing: -0.01em; }
.hero-title { font-size: var(--text-hero); line-height: var(--leading-hero); font-weight: 800; letter-spacing: -0.02em; }
h1, .page-title { font-size: var(--text-page-title); line-height: var(--leading-title); }
.h1 { font-size: var(--text-h1); line-height: 1.2; }
h2, .h2 { font-size: var(--text-h2); line-height: var(--leading-heading); }
h3, .h3 { font-size: var(--text-h3); line-height: 1.3; }
h4, .h4 { font-size: var(--text-h4); line-height: 1.35; font-weight: var(--weight-semibold); }
p { margin: 0; text-wrap: pretty; }
.lede { font-size: var(--text-body-l); line-height: var(--leading-body); color: var(--color-text-secondary); max-width: 38em; }
.small { font-size: var(--text-small); line-height: 1.5; }
.caption { font-size: var(--text-caption); line-height: 1.5; }
.muted { color: var(--color-text-muted-strong); }
.num { font-variant-numeric: lining-nums tabular-nums; }

/* Source content (restaurant/dish names, reviews) keeps lang="zh-CN" even in English UI. */
[lang="zh-CN"] { font-family: var(--font-ui); }

/* Layout primitives */
.container { width: min(100% - 2 * var(--page-padding), var(--container)); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.section--muted { background: var(--color-surface-muted); }
.stack > * + * { margin-top: var(--stack, var(--space-4)); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--cluster, var(--space-3)); }
.grid-12 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gutter); }
@media (min-width: 768px) { .grid-12 { grid-template-columns: repeat(8, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .grid-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); } }

/* Focus & accessibility defaults */
:focus { outline: none; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; border-radius: var(--radius-sm); }
::selection { background: var(--color-brand-yellow-soft); color: var(--color-text-primary); }

.skip-link {
  position: fixed; top: var(--space-3); left: var(--space-3); z-index: 300;
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm);
  background: var(--color-text-primary); color: var(--color-background); font-weight: var(--weight-semibold);
  transform: translateY(-160%); transition: transform var(--dur-standard) var(--ease);
}
.skip-link:focus { transform: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
[hidden] { display: none !important; }