/* Go Have Tea / 吃茶去 — exhibition website
   Palette: deep green, warm paper, charcoal + goji berry, milk-tea tan,
   osmanthus gold accents. Deliberately avoids red/gold "generic China"
   styling, dragons/lanterns/bamboo borders, and faux-calligraphy body type. */

:root {
  --green: #1f3b2c;
  --green-dark: #14261c;
  --paper: #f6f0e3;
  --paper-deep: #efe6d3;
  --charcoal: #262220;
  --berry: #7c2c39;
  --tan: #b98a52;
  --gold: #8a6510;
  --line: #ddceac;
  --white: #fffdf8;

  --font-latin: "Noto Sans", system-ui, sans-serif;
  --font-cjk: "Noto Sans SC", "Noto Sans", system-ui, sans-serif;

  --max-width: 68rem;
  --radius: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--charcoal);
  font-family: var(--font-cjk);
  line-height: 1.6;
  font-size: 1.0625rem;
}

html[lang="en-CA"] body { font-family: var(--font-latin); }

h1, h2, h3, h4 {
  font-family: inherit;
  color: var(--green-dark);
  line-height: 1.25;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 2.2em; }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; }
a { color: var(--berry); }
a:hover, a:focus { color: var(--green-dark); }

img, svg { max-width: 100%; }

.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;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--green-dark);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  z-index: 200;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------------------------------------------------------------- header */

.site-header {
  background: var(--green-dark);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.site-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  margin-right: auto;
}
.site-brand:hover { color: var(--paper); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem; height: 2rem;
  border: 1.5px solid var(--tan);
  border-radius: 50%;
  font-size: 1rem;
  color: var(--tan);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 2.75rem;
  height: 2.75rem;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: var(--white);
  margin: 0 auto;
}

.primary-nav > ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
}
.primary-nav a {
  display: block;
  color: var(--paper);
  text-decoration: none;
  padding: 0.6rem 0.65rem;
  border-radius: var(--radius);
  font-size: 0.92rem;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.primary-nav a:hover,
.primary-nav a:focus {
  background: rgba(255,255,255,0.12);
  color: var(--white);
}
.primary-nav a[aria-current="page"] {
  background: var(--tan);
  color: var(--green-dark);
  font-weight: 700;
}
.nav-has-children { position: relative; }
.nav-submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  background: var(--green-dark);
  border: 1px solid rgba(255,255,255,0.2);
  min-width: 12rem;
  border-radius: var(--radius);
  overflow: hidden;
}
.nav-has-children:hover .nav-submenu,
.nav-has-children:focus-within .nav-submenu {
  display: block;
}
.nav-submenu a { min-height: 44px; }

.lang-switch {
  color: var(--white);
  background: var(--berry);
  text-decoration: none;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.9rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.lang-switch:hover, .lang-switch:focus { background: #9c3a49; color: var(--white); }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    display: none;
    width: 100%;
    order: 5;
  }
  .primary-nav.is-open { display: block; }
  .primary-nav > ul { flex-direction: column; }
  .nav-submenu { position: static; display: block; border: none; background: rgba(0,0,0,0.15); }
  .nav-has-children:hover .nav-submenu { display: block; }
  .header-inner { flex-wrap: wrap; }
}

/* ----------------------------------------------------------------- main */

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.back-link {
  margin: 0 0 1.5rem;
}
.back-link:last-child {
  margin: 2.5rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}
.back-link a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--green-dark);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
}
.back-link a:hover,
.back-link a:focus {
  color: var(--berry);
  text-decoration: underline;
}

.hero {
  padding: 2rem 0 1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}
.hero-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--berry);
  font-weight: 700;
  font-size: 0.85rem;
}
.hero-subtitle {
  font-size: 1.25rem;
  color: var(--green-dark);
  font-weight: 500;
}
.hero-lead { font-size: 1.1rem; max-width: 46rem; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.25rem; }
.event-strip {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.5rem 1rem;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--green-dark);
  letter-spacing: 0.01em;
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.95rem;
  color: var(--berry);
}

.block-list { padding-left: 1.4rem; }
.block-list li { margin-bottom: 0.4em; }

.pull-quote {
  margin: 1.75rem 0;
  padding: 1rem 1.5rem;
  border-left: 4px solid var(--tan);
  background: var(--white);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--green-dark);
}
.pull-quote p { margin: 0 0 0.4em; }
.pull-quote cite {
  display: block;
  font-style: normal;
  font-size: 0.85rem;
  color: var(--charcoal);
  opacity: 0.75;
}

.note {
  margin: 1.5rem 0;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  border: 1px solid var(--line);
  background: var(--paper-deep);
}
.note-label { font-weight: 700; text-transform: uppercase; font-size: 0.78rem; letter-spacing: 0.04em; }
.note-notice { border-left: 4px solid var(--green); }
.note-pending { border-left: 4px solid var(--gold); background: #fbf3de; }
.note-correction { border-left: 4px solid var(--berry); background: #f8e9ea; }

/* ------------------------------------------------------- placeholder art */

.placeholder-panel {
  margin: 1.75rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
}
.placeholder-box {
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
  position: relative;
}
.placeholder-box::before {
  content: "";
  position: absolute;
  inset: 0.6rem;
  border: 1.5px dashed rgba(38,34,32,0.25);
  border-radius: var(--radius);
}
.placeholder-tag {
  background: rgba(38,34,32,0.78);
  color: var(--white);
  font-size: 0.8rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  position: relative;
  z-index: 1;
}
.tone-green .placeholder-box { background: linear-gradient(135deg, #24432f, #3b5f45); }
.tone-tan .placeholder-box { background: linear-gradient(135deg, #c9a06c, #e4c793); }
.tone-gold .placeholder-box { background: linear-gradient(135deg, #b98a1f, #dcb45a); }
.tone-berry .placeholder-box { background: linear-gradient(135deg, #7c2c39, #a44352); }
.tone-paper .placeholder-box { background: linear-gradient(135deg, #efe6d3, #ddceac); }

.placeholder-panel figcaption {
  padding: 0.85rem 1.1rem;
  font-size: 0.9rem;
}
.caption-text { display: block; margin-bottom: 0.3em; }
.alt-inline { display: block; color: #574f49; font-size: 0.85rem; }
.alt-inline-label { font-weight: 700; }
.placeholder-pending {
  display: inline-block;
  margin-left: 0.5em;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--berry);
  font-weight: 700;
}

/* ------------------------------------------------------------ keywords */

.keyword-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 1.5rem 0;
}
.keyword-tags li {
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.85rem;
  color: var(--green-dark);
}

/* ----------------------------------------------------------------- triad */

.triad {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 1.75rem 0;
}
.triad-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}
.triad-label {
  display: block;
  font-weight: 700;
  color: var(--berry);
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  margin-bottom: 0.35em;
}

/* -------------------------------------------------------------- cards */

.card-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin: 1.75rem 0;
}
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.card-link { text-decoration: none; color: inherit; display: block; transition: box-shadow .15s, transform .15s; }
.card-link:hover, .card-link:focus {
  box-shadow: 0 4px 14px rgba(31,59,44,0.15);
  transform: translateY(-2px);
}
.card-link h3 { color: var(--berry); }

.gallery-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin: 1.75rem 0;
}
.gallery-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
}
.gallery-card:hover, .gallery-card:focus { box-shadow: 0 4px 14px rgba(31,59,44,0.15); }
.gallery-card-thumb { display: block; aspect-ratio: 4/3; }
.gallery-card-title { display: block; padding: 0.75rem 0.9rem 0.15rem; font-weight: 700; color: var(--green-dark); }
.gallery-card-sub { display: block; padding: 0 0.9rem 0.85rem; font-size: 0.85rem; color: #574f49; }

/* ------------------------------------------------------------- buttons */

.button-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0; }
.btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
}
.btn-primary { background: var(--green); color: var(--white); }
.btn-primary:hover, .btn-primary:focus { background: var(--green-dark); color: var(--white); }
.btn-secondary { background: transparent; color: var(--green-dark); border-color: var(--green); }
.btn-secondary:hover, .btn-secondary:focus { background: var(--green); color: var(--white); }

/* --------------------------------------------------------- poster meta */

.poster-meta {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}
.poster-chinese { font-size: 1.6rem; color: var(--green-dark); margin-bottom: 0.2em; }
.poster-translation { font-style: italic; margin: 0; }

/* ------------------------------------------------------------- glossary */

.glossary-list { margin: 1.5rem 0; }
.glossary-row {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(140px, 220px) 1fr;
  gap: 0.75rem;
}
.glossary-row dt { font-weight: 700; color: var(--green-dark); margin: 0; }
.glossary-row dd { margin: 0; }
@media (max-width: 600px) {
  .glossary-row { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------------ faq */

.faq-list { margin: 1.5rem 0; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  background: var(--white);
  padding: 0.2rem 1.1rem;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  padding: 0.85rem 0;
  color: var(--green-dark);
  min-height: 44px;
  display: flex;
  align-items: center;
}
.faq-item p { padding-bottom: 0.9rem; }

/* -------------------------------------------------------------- map list */

.map-groups { display: grid; gap: 1.5rem; margin: 1.5rem 0; }
.map-group {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  background: var(--white);
}
.map-group ul { list-style: none; padding: 0; margin: 0.5rem 0 0; }
.map-group li { padding: 0.5rem 0; border-top: 1px solid var(--line); }
.map-group li:first-child { border-top: none; }
.map-entry-desc { display: block; font-size: 0.92rem; color: #574f49; }

/* --------------------------------------------------------- bubble tea */

.cup-builder {
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(220px, 300px) 1fr;
  margin: 2rem 0;
  align-items: start;
}
@media (max-width: 700px) {
  .cup-builder { grid-template-columns: 1fr; }
}
.cup-visual {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.cup-shape {
  width: 120px;
  height: 160px;
  border: 3px solid var(--charcoal);
  border-top: none;
  border-radius: 0 0 18px 18px;
  position: relative;
  overflow: hidden;
  background: #fdf7ea;
  transition: background 0.25s;
}
.cup-lid {
  width: 132px;
  height: 14px;
  background: var(--charcoal);
  border-radius: 4px;
  margin-bottom: -3px;
}
.cup-fill {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 70%;
  background: var(--tan);
  transition: background 0.25s;
}
.cup-pearls {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 18%;
  background-image: radial-gradient(circle, #2c1a12 4px, transparent 5px);
  background-size: 14px 14px;
  background-position: 2px 2px;
  opacity: 0;
  transition: opacity 0.25s;
}
.cup-pearls.is-visible { opacity: 1; }
.cup-summary { font-size: 0.95rem; text-align: center; }

.cup-options fieldset {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin: 0 0 1rem;
  padding: 0.75rem 1rem 1rem;
}
.cup-options legend { font-weight: 700; color: var(--green-dark); padding: 0 0.4rem; }
.cup-options .option-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cup-options label {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  font-size: 0.9rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  background: var(--white);
}
.cup-options input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.cup-options input:checked + span { font-weight: 700; }
.cup-options label:has(input:checked) {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}
.cup-options label:focus-within { outline: 3px solid var(--gold); outline-offset: 1px; }

/* -------------------------------------------------------------- chooser */

.chooser {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* -------------------------------------------------------------- footer */

.site-footer {
  background: var(--green-dark);
  color: var(--paper);
  margin-top: 3rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.25rem;
}
.footer-credit { font-weight: 500; }
.footer-meta { font-size: 0.85rem; opacity: 0.8; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 1rem 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.footer-links a {
  color: var(--paper);
  font-size: 0.85rem;
  text-decoration: underline;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.footer-links a:hover, .footer-links a:focus { color: var(--tan); }
.back-top { color: var(--tan); font-size: 0.85rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}