/* coilgo, the play table.
 *
 * Themes are variable sets on <body>. The board's state (stones, the stroke,
 * liberty counts, atari marks, the white clock) is drawn by one renderer for
 * every theme, which is how "a theme changes the look, never the information"
 * (CLAUDE.md pillar 2) holds by construction rather than by review. */

:root {
  --ink: #1c1a17;
  --silk: #fbf1dc;
  --cinnabar: #d9402b;
  --cinnabar-deep: #7a2014;
  --azurite: #1f5fa8;
  --malachite: #2a9d78;
  --gold: #e8b33a;
  --peach: #f6c3a8;
  --lotus: #ee8fa6;

  --display: 'ZCOOL KuaiLe', 'PingFang SC', 'Hiragino Maru Gothic ProN', sans-serif;
  --brush: 'Ma Shan Zheng', 'Kaiti SC', 'STKaiti', serif;
  --body: 'Noto Serif SC', 'Songti SC', Georgia, serif;

  --bounce: cubic-bezier(.2, 1.7, .4, 1);
}

/* ---------- theme: qinglü, blue-green landscape (free) ---------- */
.theme-qinglu {
  --page: linear-gradient(180deg, #bfe3e8 0%, #e8f3e4 38%, #fbf1dc 100%);
  --page-ink: var(--ink);
  --panel: #fffaf0;
  --panel-edge: var(--ink);
  --board: linear-gradient(135deg, #f3cf7f, #e6b45e);
  --frame: 5px solid var(--ink);
  --frame-shadow: 0 8px 0 var(--ink), 0 22px 40px rgba(31, 95, 168, 0.25);
  --board-radius: 18px;
  --line: rgba(28, 26, 23, 0.72);
  --star: var(--ink);
  --black-a: #3b3a3f;
  --black-b: #0d0c10;
  --white-a: #ffffff;
  --white-b: #d9d4c8;
  --ribbon: var(--cinnabar);
  --tip: var(--gold);
  --libs: var(--azurite);
  --atari: var(--cinnabar);
  --accent: var(--cinnabar);
  --accent-ink: var(--silk);
  --chip: #fffaf0;
}

/* ---------- theme: lantern night (pack) ---------- */
.theme-lantern {
  --page: radial-gradient(ellipse at 50% 0, #6b1420, #2a0b12 55%, #12070a);
  --page-ink: #fbe7c6;
  --panel: rgba(255, 220, 160, 0.08);
  --panel-edge: #e8b33a;
  --board: linear-gradient(160deg, #8f1d1d, #5a0f12);
  --frame: 4px solid #e8b33a;
  --frame-shadow: 0 0 0 6px #2a0b12, 0 0 0 8px #e8b33a, 0 0 70px rgba(255, 170, 60, 0.35);
  --board-radius: 14px;
  --line: rgba(255, 214, 140, 0.55);
  --star: #ffd68c;
  --black-a: #3a2a1a;
  --black-b: #0a0605;
  --white-a: #fff8e6;
  --white-b: #e9c98d;
  --ribbon: #ffb22e;
  --tip: #fff1b8;
  --libs: #9fe3ff;
  --atari: #ff5a3c;
  --accent: #e8b33a;
  --accent-ink: #2a0b12;
  --chip: #2a0b12;
}

/* ---------- theme: blue and white porcelain (pack) ---------- */
.theme-porcelain {
  --page: radial-gradient(circle at 20% 10%, #ffffff, #e9f0fa 60%, #d3e0f3);
  --page-ink: #13306b;
  --panel: #ffffff;
  --panel-edge: #1d4fa1;
  --board: radial-gradient(circle at 50% 40%, #ffffff, #eef3fb);
  --frame: 4px solid #1d4fa1;
  --frame-shadow: 0 0 0 8px #fff, 0 0 0 10px #1d4fa1, 0 18px 40px rgba(29, 79, 161, 0.3);
  --board-radius: 50% / 8%;
  --line: rgba(29, 79, 161, 0.6);
  --star: #1d4fa1;
  --black-a: #2d5fb8;
  --black-b: #0e2a63;
  --white-a: #ffffff;
  --white-b: #cfd9ea;
  --ribbon: #1d4fa1;
  --tip: #f2b632;
  --libs: #1d4fa1;
  --atari: #d9402b;
  --accent: #1d4fa1;
  --accent-ink: #fff;
  --chip: #fff;
}

/* ---------- page ---------- */
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: #12070a; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
  color: var(--page-ink);
  font: 500 16px/1.5 var(--body);
  transition: background 300ms ease;
}
button { font: inherit; color: inherit; }

.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  max-width: 1320px; margin: 0 auto; padding: 14px 16px 6px;
}
.brand { display: flex; align-items: baseline; gap: 8px; text-decoration: none; color: inherit; }
.brand-mark, .brand-word {
  color: var(--silk);
  -webkit-text-stroke: 0.08em var(--ink);
  paint-order: stroke fill;
  text-shadow: 0.05em 0.08em 0 var(--cinnabar-deep);
}
.brand-mark { font: 400 40px/1 var(--brush); color: var(--cinnabar); }
.brand-word { font: 400 24px/1 var(--display); letter-spacing: 0.06em; }
.modes { display: flex; gap: 6px; flex-wrap: wrap; }
.modes a {
  text-decoration: none; color: inherit; font: 400 16px var(--display); letter-spacing: 0.04em;
  padding: 4px 14px; border: 2px solid transparent; border-radius: 999px;
}
.modes a[aria-current='page'] { border-color: var(--accent); color: var(--accent); background: var(--panel); }
.spacer { flex: 1; }
.account-button {
  border: 2px solid var(--ink); background: var(--silk); color: var(--ink); border-radius: 999px;
  padding: 3px 16px; font: 400 16px var(--display); cursor: pointer; box-shadow: 0 3px 0 var(--ink);
}
.themes { display: flex; gap: 4px; }
.themes button, .seed-field button {
  border: 1px solid var(--panel-edge); background: var(--panel); border-radius: 999px;
  padding: 4px 12px; font-size: 13px; cursor: pointer;
}
.themes button small { opacity: 0.6; font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.themes button[aria-pressed='true'] { background: var(--accent); color: var(--accent-ink); }
.sound-toggle {
  border: 1px solid var(--panel-edge); background: var(--panel); border-radius: 999px;
  padding: 2px 12px; cursor: pointer; font: 400 17px var(--brush);
}
.sound-toggle[aria-pressed='true'] { background: var(--accent); color: var(--accent-ink); }
.seed-field { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.seed-field[hidden] { display: none; }
.seed-field input {
  width: 120px; padding: 4px 8px; border: 1px solid var(--panel-edge); border-radius: 6px;
  background: var(--panel); color: inherit; font: 600 14px var(--body);
}

/* ---------- table layout ---------- */
.table {
  display: grid;
  grid-template-columns: 230px minmax(0, 660px) minmax(260px, 320px);
  gap: 22px;
  justify-content: center;
  align-items: start;
  max-width: 1320px; margin: 0 auto; padding: 10px 16px 48px;
}
@media (max-width: 1180px) {
  .table { grid-template-columns: minmax(0, 660px) minmax(260px, 320px); }
  .hand { grid-column: 1 / -1; display: flex; flex-flow: row wrap; gap: 14px; align-items: center; }
}
@media (max-width: 820px) {
  .table { grid-template-columns: minmax(0, 1fr); padding-inline: 10px; }
  .hand { order: 2; }
  .board-wrap { order: 1; }
  .side { order: 3; }
  .topbar .themes { order: 3; width: 100%; overflow-x: auto; }
}
.hand, .side { display: flex; flex-direction: column; gap: 14px; }

.ledger {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 12px; margin: 0;
  padding: 12px 14px; background: var(--panel); border: 2px solid var(--panel-edge); border-radius: 14px;
  box-shadow: 0 4px 0 var(--panel-edge);
}
.ledger div { min-width: 0; }
.ledger dt { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.7; }
.ledger dd { margin: 0; font: 400 28px/1.1 var(--display); }
.ledger .ante dd { color: var(--cinnabar); }
.ledger .points dd { color: var(--malachite); }
.ledger .points dd.met { color: var(--malachite); text-shadow: 0 0 12px rgba(42, 157, 120, 0.5); }
.ledger .white-clock dd.soon { color: var(--cinnabar); animation: pulse 700ms ease-in-out infinite alternate; }
.ledger dd small { font: 700 12px var(--body); opacity: 0.75; margin-left: 3px; }
.ledger dd.bump { animation: bump 420ms var(--bounce); }
@keyframes bump { 0% { transform: scale(1); } 40% { transform: scale(1.4); } 100% { transform: scale(1); } }
@keyframes pulse { from { opacity: 1; } to { opacity: 0.45; } }

.build { display: flex; flex-wrap: wrap; gap: 6px; }
.build span {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 10px 2px 6px;
  border: 2px solid var(--panel-edge); border-radius: 999px; background: var(--panel); font-size: 13px;
}
.build b { font: 400 18px var(--brush); color: var(--cinnabar); }

.pad {
  display: grid; grid-template-columns: repeat(3, 58px); grid-template-rows: repeat(3, 52px);
  gap: 6px; justify-content: center;
}
.pad button {
  border: 2px solid var(--ink); border-radius: 14px; background: var(--silk); color: var(--ink);
  font-size: 20px; cursor: pointer; box-shadow: 0 4px 0 var(--ink); touch-action: manipulation;
}
.pad button:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--ink); }
.pad button:disabled { opacity: 0.35; cursor: default; }
.pad [data-dir='n'] { grid-area: 1 / 2; }
.pad [data-dir='w'] { grid-area: 2 / 1; }
.pad .rest { grid-area: 2 / 2; font: 400 15px var(--display); background: var(--malachite); color: #fff; }
.pad [data-dir='e'] { grid-area: 2 / 3; }
.pad [data-dir='s'] { grid-area: 3 / 2; }
.how { margin: 0; font-size: 14px; opacity: 0.8; }
@media (max-width: 1180px) { .how { flex: 1 1 200px; } }

/* ---------- the board ---------- */
.board-wrap { position: relative; }
.board {
  background: var(--board);
  border: var(--frame);
  border-radius: var(--board-radius);
  box-shadow: var(--frame-shadow);
  padding: 2.2%;
  touch-action: none;
  user-select: none;
}
.board svg { display: block; width: 100%; height: auto; overflow: visible; }
.board .grid line { stroke: var(--line); stroke-width: 0.045; }
.board .star { fill: var(--star); }
.board .coord { fill: var(--line); font: 400 0.36px var(--display); text-anchor: middle; dominant-baseline: central; }
.board .ribbon {
  fill: none; stroke: var(--ribbon); stroke-width: 0.78; stroke-linecap: round; stroke-linejoin: round;
  opacity: 0.95;
}
.board .stone { transition: transform 140ms ease; transform-box: fill-box; transform-origin: center; }
.board .stone.black { fill: url(#black-stone); stroke: var(--ribbon); stroke-width: 0.06; }
.board .stone.white { fill: url(#white-stone); stroke: rgba(0, 0, 0, 0.25); stroke-width: 0.02; }
.board .stone.new { animation: drop 380ms var(--bounce); }
@keyframes drop { 0% { transform: scale(1.8); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
.board .tip-ring { fill: none; stroke: var(--tip); stroke-width: 0.11; }
.board .tip-arrow { fill: var(--tip); }
.board .libs { fill: var(--libs); font: 400 0.42px var(--display); text-anchor: middle; dominant-baseline: central; }
.board .lib-chip { fill: var(--chip); stroke: var(--libs); stroke-width: 0.04; }
.board .atari .lib-chip { stroke: var(--atari); fill: var(--atari); }
.board .atari .libs { fill: #fff; }
.board .last-lib { fill: none; stroke: var(--atari); stroke-width: 0.07; stroke-dasharray: 0.12 0.1; animation: spin 2.4s linear infinite; transform-box: fill-box; transform-origin: center; }
@keyframes spin { to { transform: rotate(360deg); } }
.board .ghost { fill: var(--ribbon); opacity: 0.18; }
.board .escape { fill: none; stroke: var(--atari); stroke-width: 0.06; }
.board.shake { animation: shake 360ms ease; }
@keyframes shake { 20% { transform: translateX(-6px); } 40% { transform: translateX(6px); } 60% { transform: translateX(-4px); } 80% { transform: translateX(3px); } }

/* ---------- effects ---------- */
.fx { position: absolute; inset: 0; pointer-events: none; overflow: visible; }
.pop {
  position: absolute; transform: translate(-50%, -50%);
  font: 400 34px var(--display); color: var(--silk);
  -webkit-text-stroke: 0.08em var(--ink); paint-order: stroke fill;
  animation: rise 1100ms ease-out forwards; white-space: nowrap;
}
.pop.big { font-size: 52px; color: var(--gold); }
.pop.bad { color: var(--cinnabar); }
@keyframes rise { 0% { transform: translate(-50%, -20%) scale(0.4); opacity: 0; } 20% { transform: translate(-50%, -50%) scale(1.15); opacity: 1; } 100% { transform: translate(-50%, -150%) scale(1); opacity: 0; } }
.seal {
  position: absolute; transform: translate(-50%, -50%) rotate(-8deg);
  width: 64px; height: 64px; border-radius: 10px; background: var(--cinnabar); color: var(--silk);
  display: grid; place-items: center; font: 400 44px var(--brush);
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.35), 0 4px 0 var(--cinnabar-deep);
  animation: stamp 900ms var(--bounce) forwards;
}
@keyframes stamp { 0% { transform: translate(-50%, -50%) scale(3) rotate(-20deg); opacity: 0; } 25% { transform: translate(-50%, -50%) scale(1) rotate(-8deg); opacity: 1; } 80% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, -60%) scale(0.9) rotate(-8deg); } }
.confetti { position: absolute; width: 9px; height: 13px; border-radius: 2px; animation: burst 900ms ease-out forwards; }
@keyframes burst { to { transform: translate(var(--dx), var(--dy)) rotate(var(--rot)); opacity: 0; } }
.verdict-stamp {
  position: absolute; left: 50%; top: 45%; transform: translate(-50%, -50%) rotate(-10deg);
  width: 180px; height: 180px; border-radius: 22px; display: grid; place-items: center;
  font: 400 128px/1 var(--brush); color: var(--silk); background: var(--cinnabar);
  box-shadow: inset 0 0 0 6px rgba(255, 255, 255, 0.35), 0 10px 0 var(--cinnabar-deep);
  animation: verdict 700ms var(--bounce) both;
}
.verdict-stamp.lost { background: var(--ink); box-shadow: inset 0 0 0 6px rgba(255, 255, 255, 0.2), 0 10px 0 #000; }
@keyframes verdict { from { transform: translate(-50%, -50%) scale(3) rotate(-30deg); opacity: 0; } }

/* ---------- side ---------- */
.note { margin: 0; min-height: 1.5em; font-size: 15px; }
.tray { display: flex; flex-direction: column; gap: 12px; }
.tray h2, .record h2 { font: 400 22px var(--display); margin: 0; }
.charm {
  display: grid; grid-template-columns: 64px 1fr; gap: 4px 12px; align-items: center; text-align: left;
  padding: 12px 14px; border: 3px solid var(--ink); border-radius: 16px; background: var(--silk); color: var(--ink);
  box-shadow: 0 5px 0 var(--ink); cursor: pointer; transition: transform 120ms ease;
}
.charm:hover, .charm:focus-visible { transform: translateY(-3px) rotate(-0.6deg); }
.charm .hz {
  grid-row: span 3; width: 64px; height: 64px; display: grid; place-items: center; border-radius: 12px;
  background: var(--cinnabar); color: var(--silk); font: 400 30px/1 var(--brush); text-align: center;
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.35);
}
.charm .hz.long { font-size: 21px; line-height: 1.05; padding: 4px; }
.charm:nth-child(3n + 2) .hz { background: var(--azurite); }
.charm:nth-child(3n + 3) .hz { background: var(--malachite); }
.charm .name { font: 400 21px var(--display); }
.charm .flavor { font-size: 13px; font-style: italic; opacity: 0.7; }
.charm .effect { font-size: 15px; }
.btn {
  border: 2px solid var(--ink); background: var(--cinnabar); color: var(--silk); border-radius: 999px;
  padding: 7px 18px; font: 400 18px var(--display); cursor: pointer; box-shadow: 0 4px 0 var(--ink);
  text-decoration: none; display: inline-block;
}
.btn.alt { background: var(--silk); color: var(--ink); }
.btn.green { background: var(--malachite); }
.verdict { padding: 14px; border: 3px solid var(--ink); border-radius: 16px; background: var(--silk); color: var(--ink); box-shadow: 0 5px 0 var(--ink); }
.verdict h2 { font: 400 28px var(--display); margin: 0 0 4px; }
.verdict .row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.verdict ol { padding-left: 20px; margin: 6px 0; font-size: 14px; }
.verdict li.me { font-weight: 700; color: var(--cinnabar); }
.record ol { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.record li {
  display: grid; grid-template-columns: 34px 1fr auto; gap: 8px; padding: 4px 10px; border-radius: 8px;
  background: var(--panel); font-size: 14px; border: 1px solid transparent;
}
.record li.lost { border-color: var(--cinnabar); }
.record li b { font: 400 16px var(--display); }
.match-strip {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; padding: 8px 12px;
  border: 2px solid var(--panel-edge); border-radius: 12px; background: var(--panel); font-size: 14px;
}
.match-strip b { font: 400 17px var(--display); }
.coach { margin-bottom: 12px; padding: 12px 14px; border-radius: 14px; background: var(--azurite); color: #fff; border: 3px solid var(--ink); box-shadow: 0 5px 0 var(--ink); }
.coach p { margin: 0 0 8px; }
.coach .btn { font-size: 15px; padding: 4px 14px; }

/* ---------- account dialog ---------- */
dialog.account { border: 3px solid var(--ink); border-radius: 18px; background: var(--silk); color: var(--ink); max-width: 400px; width: calc(100% - 32px); box-shadow: 0 8px 0 var(--ink); }
dialog.account::backdrop { background: rgba(10, 20, 40, 0.5); }
dialog.account h2 { font: 400 26px var(--display); margin: 0 0 6px; }
dialog.account label { display: flex; flex-direction: column; gap: 3px; margin: 10px 0; font-size: 14px; }
dialog.account input { padding: 8px 10px; border: 2px solid var(--ink); border-radius: 8px; font: 500 16px var(--body); }
dialog.account .row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 12px; }
dialog.account .link { background: none; border: 0; text-decoration: underline; cursor: pointer; }
dialog.account .small { font-size: 13px; opacity: 0.8; margin: 0; }
dialog.account .error { color: var(--cinnabar); min-height: 1.2em; margin: 4px 0 0; font-size: 14px; }
dialog.account[data-mode='login'] .when-signup { display: none; }

/* ---------- Midjourney art ----------
   Every rule here is keyed on a has-art-* class, which art.js adds only once
   the image has actually loaded, so a missing file leaves the CSS look. */
.has-art-silk-512 .theme-qinglu {
  background: linear-gradient(180deg, rgba(191, 227, 232, 0.8) 0%, rgba(232, 243, 228, 0.45) 40%, rgba(251, 241, 220, 0) 75%), var(--art-silk-512) 0 0 / 512px, #fbf1dc;
}
.has-art-silk-512 .theme-qinglu .verdict,
.has-art-silk-512 .theme-qinglu .charm,
.has-art-silk-512 .theme-qinglu .ledger { background: linear-gradient(rgba(255, 250, 240, 0.72), rgba(255, 250, 240, 0.72)), var(--art-silk-512) 0 0 / 512px, var(--silk); }
.verdict .banner { display: none; margin: -14px -14px 12px; aspect-ratio: 4 / 3; max-height: 190px; width: calc(100% + 28px); border-radius: 13px 13px 0 0; background: center / cover no-repeat; }
.has-art-cleared .verdict .banner.cleared { display: block; background-image: var(--art-cleared); }
.has-art-fallen .verdict .banner.fallen { display: block; background-image: var(--art-fallen); }
.has-art-duel .match-strip.duel,
.has-art-daily .match-strip.daily { min-height: 64px; color: var(--silk); border-color: var(--ink); text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7); }
.has-art-duel .match-strip.duel { background: linear-gradient(90deg, rgba(20, 30, 40, 0.65), rgba(20, 30, 40, 0.1)), var(--art-duel) center 40% / cover; }
.has-art-daily .match-strip.daily { background: linear-gradient(90deg, rgba(20, 30, 40, 0.65), rgba(20, 30, 40, 0.1)), var(--art-daily) center / cover; }
.has-art-duel .match-strip.duel b, .has-art-daily .match-strip.daily b { font-size: 20px; }