:root {
  --ink: #241f1a;
  --ink-soft: #6a6157;
  --bg: #f1ece4;
  --paper: #ffffff;
  --line: #ddd4c7;
  --primary: #8a4b22;
  --primary-dark: #5e3214;
  --wood: #e3bf85;     /* 盤の色 */
  --wood-dark: #c99a5b;
  --grid: #5a4127;
  --ok: #1f8a4c;
  --ng: #c23b2e;
  --gold: #f2c14e;
  --font: "Zen Kaku Gothic New", system-ui, sans-serif;
  --num: "Martian Mono", ui-monospace, "Zen Kaku Gothic New", monospace;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-weight: 500; line-height: 1.7; line-break: strict; }
.hidden { display: none !important; }
.nw { white-space: nowrap; }

.g-head { display: flex; align-items: center; gap: 10px; padding: 10px 16px; max-width: 520px; margin: 0 auto; font-size: 13px; font-weight: 900; }
.g-brand { color: var(--ink-soft); text-decoration: none; white-space: nowrap; }
.g-title { flex: 1; text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.g-head [data-mg-account] a { color: var(--primary-dark); text-decoration: none; }

main { max-width: 520px; margin: 0 auto; padding: 0 12px 24px; }
.play { position: relative; user-select: none; -webkit-user-select: none; }

/* 手数・相手・メニュー */
.bar { display: grid; grid-template-columns: 1fr 1.6fr auto; gap: 8px; margin-bottom: 8px; }
.box { position: relative; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 4px 8px; text-align: center; min-width: 0; }
.lbl { display: block; font-size: 12px; font-weight: 900; color: var(--ink-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.val { font: 700 24px/1.2 var(--num); font-variant-numeric: tabular-nums; white-space: nowrap; }
.val small { font: 900 13px/1 var(--font); color: var(--ink-soft); margin-left: 2px; }
.opp { display: flex; align-items: center; gap: 8px; text-align: left; }
.opp-txt { min-width: 0; }
.opp-name { display: block; font: 900 17px/1.3 var(--font); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.face { display: inline-block; flex: none; width: 34px; height: 34px; }
.face svg { display: block; width: 100%; height: 100%; }
.face.big { width: 44px; height: 44px; }
.menu-btn { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; padding: 4px 6px; color: var(--ink); font: 900 11px/1.2 var(--font); cursor: pointer; }
.menu-btn span { color: var(--ink-soft); }

/* 盤 */
.card-b { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 8px; box-shadow: 0 10px 28px rgba(60, 40, 20, 0.14); }
.board-wrap { width: 100%; max-width: 480px; margin: 0 auto; }
.board { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; border-radius: 10px; background: var(--wood); touch-action: manipulation; cursor: pointer; outline: none; }
.board:focus-visible { box-shadow: 0 0 0 3px var(--primary); }
.board .gl { stroke: var(--grid); stroke-width: 0.45; }
.board .edge { fill: none; stroke: var(--grid); stroke-width: 0.8; }
.board .star { fill: var(--grid); }
.board .sb { fill: #1c1a19; }
.board .sw { fill: #fbfaf6; stroke: #6b6258; stroke-width: 0.5; }
.board .last { fill: #e2443a; }
.board .ghost { fill: #1c1a19; opacity: 0.38; }
.board .selr { fill: none; stroke: #1f6fd6; stroke-width: 1.1; }
.board .hintr { fill: none; stroke: #1f8a4c; stroke-width: 1.1; stroke-dasharray: 2 1.2; }
.board .win { stroke: #e2443a; stroke-width: 1.6; stroke-linecap: round; opacity: 0.85; }
.board .wt { opacity: 0.82; }
.board .wt.w5 { fill: #e2443a; }
.board .wt.w4 { fill: #f09a2b; }
.board .wt.b5 { fill: #23a35a; }
.board .wt.b4 { fill: #2f7fe0; }
.board .no { font: 700 3.6px var(--num); text-anchor: middle; dominant-baseline: central; pointer-events: none; }
.board .no.b { fill: #fff; }
.board .no.w { fill: #241f1a; }
.board .cur { fill: none; stroke: #1f6fd6; stroke-width: 0.6; stroke-dasharray: 1 1; }
@media (prefers-reduced-motion: no-preference) {
  .board .pop { animation: pop 0.22s ease-out; transform-box: fill-box; transform-origin: center; }
  @keyframes pop { 0% { transform: scale(0.6); } 100% { transform: scale(1); } }
}
.b-msg { margin: 8px 0 6px; text-align: center; font-size: 15px; font-weight: 900; min-height: 1.6em; }
.b-msg.warn { color: var(--ng); }
.ctrl { display: grid; gap: 6px; }
.btn.put { margin: 0; padding: 14px 10px; font-size: 18px; }
.tools { display: flex; gap: 6px; }
.btn.tool { flex: 1; margin: 0; display: flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 6px; font-size: 14px; background: var(--bg); border: 1px solid var(--line); }
.btn.tool span { display: flex; flex-direction: column; line-height: 1.2; text-align: left; }
.btn.tool small { margin-top: 1px; font-size: 11px; }
.btn.tool.on { background: #fff3d6; border-color: #e6b44a; }

/* タイトル・結果（盤を隠して全体を見せる） */
.play.menu .bar, .play.menu .card-b { display: none; }
.card-ui { width: 100%; max-width: 420px; margin: 0 auto; background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 20px 16px 16px; text-align: center; box-shadow: 0 10px 30px rgba(60, 40, 20, 0.1); }
.logo { margin: 0; font: 900 clamp(26px, 8.4vw, 34px)/1.3 var(--font); letter-spacing: 0.04em; }
.logo span { display: inline-block; white-space: nowrap; }
.day { margin: 2px 0 8px; font-size: 13px; color: var(--ink-soft); font-weight: 900; }
.t-art { display: block; width: 200px; height: 100px; margin: 0 auto 10px; border-radius: 10px; }
.daily-box { border: 2px solid var(--primary); border-radius: 16px; padding: 12px; margin-bottom: 10px; }
.free-box { border: 1px solid var(--line); border-radius: 16px; padding: 10px 12px 4px; margin-bottom: 4px; }
.daily-lbl { font-size: 12px; font-weight: 900; color: var(--ink-soft); letter-spacing: 0.1em; }
.daily-opp { display: flex; align-items: center; justify-content: center; gap: 10px; margin: 4px 0 2px; }
.daily-name { font: 900 26px/1.3 var(--font); color: var(--primary-dark); }
.daily-par { font-size: 14px; font-weight: 900; color: var(--ink); margin-top: 2px; }
.daily-note { margin: 4px 0 8px; font-size: 13px; color: var(--ink-soft); }
.done { font-size: 15px; font-weight: 900; margin-top: 6px; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 6px 0 2px; }
.seg button { padding: 10px 4px; border: 2px solid var(--line); border-radius: 12px; background: var(--paper); font: 900 15px/1.2 var(--font); color: var(--ink); cursor: pointer; }
.seg button[aria-pressed="true"] { border-color: var(--primary); background: #fbefe4; color: var(--primary-dark); }
.howto { list-style: none; margin: 12px 0 0; padding: 10px 12px; background: var(--bg); border-radius: 12px; text-align: left; font-size: 14px; font-weight: 700; }
.howto li { display: flex; align-items: baseline; gap: 6px; padding: 3px 0; }
.howto .num { flex: none; font-weight: 900; color: var(--primary); }
.stats { font-size: 13px; color: var(--ink-soft); font-weight: 700; margin: 10px 0 0; }

.btn { display: block; width: 100%; margin: 8px 0; padding: 14px 10px; border: 0; border-radius: 14px; font: 900 17px/1.2 var(--font); cursor: pointer; background: var(--bg); color: var(--ink); }
.btn small { display: block; font-size: 12px; font-weight: 700; color: var(--ink-soft); margin-top: 4px; }
.btn.primary { background: var(--primary); color: #fff; box-shadow: 0 4px 0 var(--primary-dark); }
.btn.primary:active { transform: translateY(2px); box-shadow: 0 2px 0 var(--primary-dark); }
.btn.primary:disabled { box-shadow: none; transform: none; }
.btn.sub { font-size: 16px; }
.btn.ghost { background: transparent; border: 2px solid var(--line); color: var(--ink-soft); font-size: 15px; }
.btn.x { background: #000; color: #fff; display: flex; align-items: center; justify-content: center; gap: 8px; }
.btn:disabled { opacity: 0.5; cursor: default; }

.clear-lbl { font-size: 13px; font-weight: 900; color: var(--primary-dark); }
.clear-big { margin: 4px 0; font: 900 46px/1.2 var(--font); }
.clear-big.win { color: var(--primary-dark); }
.clear-big.lose { color: var(--ink-soft); }
.clear-big small { font-size: 18px; margin-left: 4px; }
.clear-sub { margin: 0; font-size: 15px; font-weight: 700; }
.best { display: block; width: max-content; margin: 10px auto 0; padding: 2px 12px; border-radius: 999px; background: var(--gold); font-weight: 900; font-size: 13px; }
.rank { margin: 12px 0; padding: 8px; background: var(--bg); border-radius: 14px; }
.rank-lbl { font-size: 12px; font-weight: 900; color: var(--ink-soft); }
.rank-name { font: 900 22px/1.4 var(--font); }
.rank-basis { font-size: 11px; font-weight: 700; color: var(--ink-soft); }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 12px 0 0; }
.facts div { background: var(--bg); border-radius: 12px; padding: 6px 4px; min-width: 0; }
.facts dt { font-size: 11px; font-weight: 900; color: var(--ink-soft); }
.facts dd { margin: 0; font-size: 15px; font-weight: 900; line-height: 1.35; }
.facts dd small { font-size: 12px; color: var(--ink-soft); }
.c-note { margin: 8px 0; padding: 8px 10px; border-radius: 12px; background: #fff6dd; font-size: 13px; font-weight: 700; text-align: left; }
.share { margin: 8px 0; }

/* 振り返り */
.review { margin: 12px 0; padding: 10px; border-radius: 14px; background: var(--bg); }
.review-lbl { font-size: 13px; font-weight: 900; color: var(--ink-soft); margin-bottom: 6px; }
.board.rv { cursor: default; max-width: 360px; margin: 0 auto; }
.rv-ctrl { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 8px 0 4px; }
.rv-btn { width: 44px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); color: var(--ink); cursor: pointer; touch-action: manipulation; }
.rv-no { min-width: 92px; font: 900 14px/1.2 var(--font); }
.rv-say { margin: 2px 0 6px; min-height: 1.5em; font-size: 14px; font-weight: 900; }
.rv-ev { list-style: none; margin: 0; padding: 0; text-align: left; max-height: 220px; overflow-y: auto; }
.rv-ev li { margin: 3px 0; }
.rv-ev button { width: 100%; display: flex; gap: 8px; align-items: baseline; padding: 6px 8px; border: 0; border-radius: 10px; background: var(--paper); font: 700 13px/1.4 var(--font); color: var(--ink); text-align: left; cursor: pointer; }
.rv-ev button.on { outline: 2px solid var(--primary); }
.rv-ev .k { flex: none; font-family: var(--num); font-size: 12px; color: var(--ink-soft); min-width: 3.4em; }
.rv-ev .bad { color: var(--ng); }
.rv-ev .good { color: var(--ok); }

.toast { position: absolute; left: 50%; top: 30%; transform: translate(-50%, -50%); z-index: 40; max-width: calc(100% - 24px); padding: 10px 18px; border-radius: 16px; background: rgba(36, 31, 26, 0.92); color: #fff; font-weight: 900; font-size: 15px; text-align: center; pointer-events: none; }

/* 下の解説（ポータルと同じ決まり） */
.guide { margin-top: 28px; background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 22px 20px 12px; font-size: 15px; line-height: 1.85; }
.guide p { margin: 0 0 1em; }
.guide h2 { font: 900 19px/1.4 var(--font); margin: 32px 0 12px; padding-left: 10px; border-left: 5px solid var(--primary); }
.guide h2:first-child { margin-top: 0; }
.guide h3 { display: flex; align-items: baseline; font-size: 16px; margin: 22px 0 6px; line-height: 1.5; }
.guide h3 .num { flex: none; }
.guide ul { padding-left: 1.3em; margin: 0 0 1em; }
.guide li { margin: 6px 0; }
.guide .steps { list-style: none; padding: 0; }
.guide .steps li { display: flex; align-items: baseline; gap: 6px; }
.guide .steps .num { flex: none; font-weight: 900; color: var(--primary); }
.guide details { border-top: 1px solid var(--line); padding: 12px 0; }
.guide details p { margin: 8px 0 4px; }
.guide summary { font-weight: 900; cursor: pointer; }
.guide a { color: var(--primary-dark); }
.g-foot { max-width: 520px; margin: 0 auto; padding: 14px 16px 28px; font-size: 12px; text-align: center; }
.g-foot a { color: var(--ink-soft); }

.card-ui .mg-box { background: var(--bg); border-color: transparent; }
@media (max-width: 360px) {
  main { padding: 0 8px 24px; }
  .bar { gap: 6px; }
  .box { padding: 4px 6px; }
  .val { font-size: 20px; }
  .card-b { padding: 6px; }
  .btn.tool { font-size: 13px; gap: 4px; }
  .btn.tool svg { display: none; }
}