/* 清松手寫體1 (SIL OFL), cut to the characters these pages use: node scripts/subset-go-font.js (F17) */
@font-face {
  font-family: "myFont";
  src: url("./resources/jason-handwriting-1-subset.woff2") format("woff2");
  font-display: swap;
}

:root {
  --paper: #f4ead2;
  --paper-2: #efe1c3;
  --wood: #c9973f;
  --wood-dark: #7a4a1d;
  --ink: #2b2118;
  --ink-soft: #5a4a38;
  --seal: #b5341f;
  --jade: #0c7a5c;
  --line: #3a2a12;
}

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "myFont", "KaiTi", "DFKai-sb", "STKaiti", serif;
}

body {
  background-color: var(--paper);
  background-image:
    radial-gradient(rgba(122, 74, 29, 0.05) 1px, transparent 1px),
    radial-gradient(rgba(122, 74, 29, 0.04) 1px, transparent 1px);
  background-size: 22px 22px, 22px 22px;
  background-position: 0 0, 11px 11px;
  color: var(--ink);
  line-height: 1.7;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 { font-weight: normal; letter-spacing: 0.02em; }

/* ---------- Header ---------- */
header div.top {
  padding: 2.4rem 1.6rem;
  background: linear-gradient(135deg, rgba(201, 151, 63, 0.35), rgba(244, 234, 210, 0.1)),
    url("./resources/background.webp") center/cover no-repeat, var(--paper-2);
  border-bottom: 3px solid var(--wood-dark);
  text-align: center;
}
header div.top h1 {
  font-size: 3rem;
  color: var(--ink);
  text-shadow: 1px 1px 0 rgba(255, 255, 255, 0.5);
}
header div.top h1::before { content: "⚫ "; color: var(--ink); }
header div.top h1::after { content: " ⚪"; }
header div.top h3 {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 780px;
  margin: 0.8rem auto 0;
}

header nav {
  background: linear-gradient(180deg, #2b2118, #171009);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  position: sticky;
  top: 0;
  z-index: 20;
}
header nav ul {
  display: flex;
  flex-wrap: wrap;
  list-style-type: none;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}
header nav ul li { padding: 0.85rem 1.2rem; }
nav ul li a {
  color: #f4ead2;
  text-decoration: none;
  font-size: 1.2rem;
  transition: color 0.25s ease;
}
nav ul li a:hover { color: var(--wood); }
.active { color: var(--wood); border-bottom: 2px solid var(--wood); padding-bottom: 2px; }
nav ul li.language { margin-left: auto; }
nav ul li.language a {
  border: 1px solid var(--wood);
  border-radius: 4px;
  padding: 0.1rem 0.55rem;
}

/* ---------- Main layout ---------- */
main { display: flex; flex-wrap: wrap; max-width: 1200px; margin: 0 auto; }
main.no-flex { display: block; }
main section { padding: 1.6rem; min-width: 0; } /* lets wide content (the China table) scroll inside instead of widening the page */

section.left { flex: 1 1 260px; }
section.left figure {
  background: var(--paper-2);
  border: 1px solid rgba(122, 74, 29, 0.4);
  padding: 0.6rem;
  border-radius: 6px;
  box-shadow: 0 4px 14px rgba(90, 50, 10, 0.12);
}
section.left img { width: 100%; height: auto; border-radius: 4px; }
section.left figcaption { text-align: center; color: var(--ink-soft); font-size: 0.9rem; padding-top: 0.4rem; }
section.left h3 { margin-bottom: 1rem; font-size: 1.5rem; color: var(--jade); }

section.left table {
  margin-top: 1.2rem;
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid rgba(122, 74, 29, 0.35);
  border-radius: 6px;
  overflow: hidden;
}
section.left td { padding: 0.5rem 0.7rem; border-bottom: 1px solid rgba(122, 74, 29, 0.18); vertical-align: top; }
section.left tr td:first-child { font-weight: bold; color: var(--ink-soft); width: 42%; background: rgba(201, 151, 63, 0.12); }

section.right { flex: 4 1 520px; }
section.right h3 { font-size: 1.6rem; padding-top: 0.5rem; color: var(--jade); position: relative; }
section.right h3::before { content: ""; display: inline-block; width: 8px; height: 8px; background: var(--seal); border-radius: 50%; margin-right: 0.5rem; vertical-align: middle; }
p { padding: 0.5rem 0; }
section.right hr { border: none; border-top: 1px dashed rgba(122, 74, 29, 0.4); margin: 1.4rem 0; }
section.right ul { margin-left: 2rem; }
section.right ul li { padding: 0.25rem 0; }
section.right ul li::marker { color: var(--seal); }

/* ---------- Association pages (japan/china/taiwan/korea) ---------- */
.player {
  margin: 1.5rem 0;
  border: 2px solid var(--wood);
  background: rgba(255, 255, 255, 0.35);
  padding: 0.9rem 1.1rem;
  border-radius: 8px;
}
.player h4 { font-size: 1.4rem; color: var(--jade); }
.player h5 { font-size: 1.05rem; color: var(--ink-soft); }

div.japan, div.competition { display: flex; flex-wrap: wrap; padding: 1rem; max-width: 1200px; margin: 0 auto; gap: 1rem; }
div.japan .image { flex: 1 1 300px; display: flex; align-items: center; }
div.japan .image img { width: 100%; height: auto; border-radius: 8px; box-shadow: 0 6px 18px rgba(90, 50, 10, 0.2); }
div.japan .info { flex: 3 1 600px; padding: 1rem 2rem; }
div.competition div.text { flex: 5 1 300px; padding: 1rem; }
div.competition div.text h3, section.taiwan h3, .china h3 { font-size: 2rem; color: var(--jade); }
#piechart { flex: 1 1 300px; }
.china table, .china th, .china td { border: 1px solid var(--wood-dark); border-collapse: collapse; padding: 3px 6px; }
.china table { min-width: 1000px; }
/* Wide table scrolls inside its own box instead of widening the page (F18). */
.table-scroll { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.china th { background-color: var(--jade); color: #fff; }
.taiwan ul { margin-left: 2rem; }

/* ---------- Playable Go board widget ---------- */
.go-play {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: flex-start;
}
.go-play .go-intro { flex: 1 1 320px; }
.go-play .go-intro h3 { font-size: 1.8rem; color: var(--jade); }
.go-play .go-intro ol { margin: 0.6rem 0 0 1.3rem; }
.go-play .go-intro li { padding: 0.2rem 0; }
.go-play .go-board-host { flex: 1 1 420px; max-width: 520px; margin: 0 auto; }

.goban {
  background:
    radial-gradient(circle at 28% 18%, #eac77a, #d7a340 70%);
  border: 14px solid var(--wood-dark);
  border-radius: 8px;
  box-shadow: inset 0 0 34px rgba(90, 50, 10, 0.4), 0 12px 30px rgba(0, 0, 0, 0.32);
  padding: 5%;
}
.goban-grid {
  --n: 9;
  position: relative;
  display: grid;
  grid-template-columns: repeat(var(--n), 1fr);
  aspect-ratio: 1;
}
.goban-grid::before {
  content: "";
  position: absolute;
  inset: calc(50% / var(--n));
  z-index: 0;
  background-image:
    repeating-linear-gradient(to right, var(--line) 0 1.5px, transparent 1.5px calc(100% / (var(--n) - 1))),
    repeating-linear-gradient(to bottom, var(--line) 0 1.5px, transparent 1.5px calc(100% / (var(--n) - 1)));
  pointer-events: none;
}
.goban-cell {
  position: relative;
  z-index: 1;
  aspect-ratio: 1;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
}
.goban-cell.hoshi::before {
  content: "";
  position: absolute;
  width: 24%;
  height: 24%;
  left: 38%;
  top: 38%;
  background: var(--line);
  border-radius: 50%;
}
.goban-cell.b.hoshi::before, .goban-cell.w.hoshi::before { display: none; }
.goban-cell.b::after, .goban-cell.w::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
}
.goban-cell.b::after { background: radial-gradient(circle at 34% 30%, #6d6d6d, #060606 66%); box-shadow: 0 2px 3px rgba(0, 0, 0, 0.55); }
.goban-cell.w::after { background: radial-gradient(circle at 34% 30%, #ffffff, #cccccc 72%); box-shadow: 0 2px 3px rgba(0, 0, 0, 0.35); }
.goban-cell.turn-b:hover::after { content: ""; position: absolute; inset: 8%; border-radius: 50%; background: rgba(6, 6, 6, 0.35); }
.goban-cell.turn-w:hover::after { content: ""; position: absolute; inset: 8%; border-radius: 50%; background: rgba(255, 255, 255, 0.5); border: 1px solid rgba(0, 0, 0, 0.2); }

.goban-bar {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  justify-content: center;
}
.goban-status {
  font-size: 1.05rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(122, 74, 29, 0.35);
  border-radius: 6px;
  padding: 0.35rem 0.8rem;
  min-width: 230px;
  text-align: center;
}
.goban-status.flash { color: var(--seal); font-weight: bold; }
.goban-btn {
  font-size: 1rem;
  color: #f4ead2;
  background: linear-gradient(180deg, var(--wood), var(--wood-dark));
  border: none;
  border-radius: 6px;
  padding: 0.4rem 1rem;
  cursor: pointer;
  transition: filter 0.2s ease;
}
.goban-btn:hover { filter: brightness(1.12); }

/* ---- Back-to-CV link: in a bar at the top of every page, not floating over content (F31) ---- */
.cv-back-bar { padding: 8px 16px; }
.cv-back {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 0.95rem;
  color: #f4ead2;
  background: linear-gradient(180deg, #2b2118, #171009);
  border: 1px solid var(--wood);
  border-radius: 20px;
  padding: 0.5rem 1rem;
  text-decoration: none;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
  transition: background 0.2s ease, color 0.2s ease;
}
.cv-back:hover { background: var(--wood); color: #171009; }

footer {
  text-align: center;
  padding: 1.6rem;
  margin-top: 1.5rem;
  color: #f4ead2;
  background: linear-gradient(180deg, #2b2118, #171009);
}

/* ---------- Responsive: tablet + mobile ---------- */
@media screen and (max-width: 900px) {
  header div.top h1 { font-size: 2.4rem; }
  section.right { flex-basis: 100%; }
  section.left { flex-basis: 100%; }
  .china table { min-width: 700px; }
}
@media screen and (max-width: 600px) {
  /* One swipeable row instead of a full-height list (F18). */
  header nav ul { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  header nav ul::-webkit-scrollbar { display: none; }
  header nav ul li { padding: 0 0.15rem; flex: 0 0 auto; display: flex; align-items: center; }
  nav ul li a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 0.75rem; font-size: 1rem; white-space: nowrap; }
  nav ul li.language { margin-left: 0; }
  nav ul li.language a { margin: 0 0.5rem 0 0.25rem; }
  header div.top { padding: 1.6rem 1rem; }
  header div.top h1 { font-size: 2rem; }
  .go-play { padding: 1rem; gap: 1.2rem; }
  .cv-back { font-size: 0.85rem; padding: 0.4rem 0.8rem; }
}