/* ポーカー先生: レトロRPG風（ドット絵フォント・黒いウィンドウ・白い枠）。素材はすべてオリジナルか自由ライセンス */
@font-face {
  font-family: "DotGothic16"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("fonts/DotGothic16.woff2") format("woff2"); /* SIL Open Font License 1.1（fonts/OFL-DotGothic16.txt） */
}
:root {
  color-scheme: dark;
  --bg: #0b1030; --panel: #05061a; --ink: #f4f4f4; --muted: #b9bfd9; --line: #ffffff; --soft-line: #3a4380;
  --accent: #ffd84a; --accent-ink: #12142e; --accent-soft: #1d2457; --felt: #17583a; --felt-edge: #0c3322;
  --red: #ff6b6b; --ok: #6fe07a; --ok-soft: #12361c; --bad: #ff7b70; --bad-soft: #3a1414; --warn-soft: #2e2a10;
  --gold: #ffd84a; --hp: #6fe07a; --mp: #6fb2ff;
  --font: "DotGothic16", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg) url("bg.svg") repeat; background-size: 192px 192px; image-rendering: pixelated;
  color: var(--ink); font: 17px/1.8 var(--font); padding-bottom: 84px; letter-spacing: .02em; }
a { color: var(--accent); }
h1 { font-size: 1.4rem; margin: .2em 0 .5em; line-height: 1.4; font-weight: 400; text-shadow: 2px 2px 0 #000; }
h2 { font-size: 1.15rem; margin: 1.3em 0 .5em; font-weight: 400; color: var(--accent); }
h3 { font-size: 1.02rem; margin: 1.1em 0 .4em; font-weight: 400; color: var(--accent); }
b, strong, th { font-weight: 400; color: var(--accent); }
img.px, .px img { image-rendering: pixelated; image-rendering: crisp-edges; }
.wrap { max-width: 860px; margin: 0 auto; padding: 12px 16px; }

/* ウィンドウ（黒い箱に白い二重線） */
.panel, .q, .stat, .cheer, .flash, .warn, .win {
  background: var(--panel); border: 3px solid var(--line); border-radius: 8px;
  box-shadow: 0 0 0 3px #000, 4px 6px 0 3px rgba(0,0,0,.45); margin: 14px 3px; padding: 12px 16px;
}
.panel h2:first-child, .panel h3:first-child { margin-top: 0; }
.muted { color: var(--muted); font-size: .9rem; }
.small { font-size: .86rem; }

header.top { background: #000; border-bottom: 3px solid var(--line); }
header.top .wrap { display: flex; align-items: center; gap: 12px; padding-top: 6px; padding-bottom: 6px; }
.brand { text-decoration: none; color: var(--ink); font-size: 1.1rem; display: flex; align-items: center; gap: 6px; }
.brand img { width: 28px; height: 28px; }
.brand span { color: var(--accent); }
header.top nav { margin-left: auto; display: flex; gap: 12px; font-size: .92rem; }
header.top nav a { text-decoration: none; color: var(--ink); }
header.top nav a:hover::before, header.top nav a:focus::before { content: "▶"; color: var(--accent); }
nav.bottom { position: fixed; bottom: 0; left: 0; right: 0; background: #000; border-top: 3px solid var(--line); display: flex; z-index: 10; padding-bottom: env(safe-area-inset-bottom); }
nav.bottom a { flex: 1; text-align: center; text-decoration: none; color: var(--ink); font-size: .74rem; padding: 6px 0 5px; line-height: 1.3; }
nav.bottom a b { display: block; font-size: 1.2rem; color: inherit; }
nav.bottom a.on { color: var(--accent); }
nav.bottom a.on b::before { content: "▶"; font-size: .7rem; vertical-align: middle; }
@media (min-width: 760px) { nav.bottom { display: none; } body { padding-bottom: 24px; } }
@media (max-width: 759px) { header.top nav { display: none; } }

.cheer { display: flex; gap: 12px; align-items: center; }
.cheer img { width: 64px; height: 64px; flex: 0 0 64px; }
.cheer p { margin: 0; }
.grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.grid .stat { margin: 3px; }
.stat .v { font-size: 1.5rem; color: var(--accent); }
.stat .k { color: var(--muted); font-size: .8rem; }

/* ボタン＝コマンド */
.btn { display: inline-block; background: #000; color: var(--ink); border: 3px solid var(--line); border-radius: 6px;
  padding: 7px 16px 7px 26px; font: inherit; text-decoration: none; cursor: pointer; position: relative; margin: 3px 2px; }
.btn::before { content: "▶"; position: absolute; left: 8px; color: transparent; }
.btn:hover::before, .btn:focus-visible::before { color: var(--accent); }
.btn:active { transform: translate(1px, 1px); }
.btn.ghost { border-color: var(--soft-line); }
.btn.small { padding: 3px 10px 3px 22px; font-size: .86rem; }
.btn.small::before { left: 6px; }
.btn.danger { border-color: var(--bad); color: var(--bad); }
.btn:disabled { opacity: .6; }
.cmd { display: grid; gap: 6px; }

.steps { list-style: none; padding: 0; margin: 0; counter-reset: s; }
.steps li { counter-increment: s; display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--soft-line); }
.steps li:last-child { border-bottom: 0; }
.steps li::before { content: counter(s); flex: 0 0 28px; height: 28px; border: 2px solid var(--accent); color: var(--accent); text-align: center; line-height: 24px; border-radius: 4px; }
.list { list-style: none; padding: 0; margin: 0; }
.list li { padding: 8px 0; border-bottom: 1px dashed var(--soft-line); }
.list li:last-child { border-bottom: 0; }
.list a { text-decoration: none; }
.list a::before { content: "▶ "; color: var(--accent); }
.tag { display: inline-block; font-size: .74rem; border: 1px solid currentColor; border-radius: 4px; padding: 0 7px; color: var(--accent); margin-right: 4px; line-height: 1.6; }
.tag.gto { color: #8fb4ff; } .tag.exp { color: #ffb36b; } .tag.rule { color: var(--ok); } .tag.mental { color: #d4a4ff; } .tag.theory { color: #9fe6e6; }
.ok { color: var(--ok); } .bad { color: var(--bad); }
.flash.ok { border-color: var(--ok); } .flash.error { border-color: var(--bad); }
.warn { border-color: var(--accent); }
.bar { height: 12px; background: #000; border: 2px solid var(--line); border-radius: 2px; overflow: hidden; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { border-bottom: 1px dashed var(--soft-line); padding: 6px 8px; text-align: left; vertical-align: top; }
th { background: var(--accent-soft); }
.scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.doc table { display: block; overflow-x: auto; }
.doc img { max-width: 100%; }
.doc blockquote { margin: 0; padding: 4px 14px; border-left: 4px solid var(--accent); background: var(--accent-soft); }
.doc code, .doc pre { background: #000; padding: 0 4px; border: 1px solid var(--soft-line); border-radius: 3px; font-family: var(--font); }
.doc pre { padding: 8px; overflow-x: auto; line-height: 1.5; }
.from { font-size: .8rem; color: var(--muted); }
form.stack label { display: block; margin-top: 12px; font-size: .92rem; color: var(--accent); }
input[type=text], input[type=password], input[type=number], input[type=date], select, textarea {
  width: 100%; font: inherit; padding: 8px 10px; border: 2px solid var(--line); border-radius: 4px; background: #000; color: var(--ink); }
textarea { min-height: 84px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.checks label { display: flex; gap: 8px; align-items: flex-start; margin-top: 6px !important; color: var(--ink) !important; }
.checks input { margin-top: .5em; accent-color: var(--accent); }

/* トランプ（読みやすさ優先で白いカードのまま） */
.cards { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin: 6px 0; }
.cards .lbl { min-width: 3.4em; font-size: .9rem; }
.card { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; width: 42px; height: 58px; border-radius: 5px; background: #fff; color: #111; border: 2px solid #000; box-shadow: 0 0 0 2px #fff; font-size: 1.1rem; line-height: 1.05; font-family: var(--font); }
.card .s { font-size: 1.1rem; }
.card.red { color: #d01c1c; }

/* クイズ */
.q .num { color: var(--muted); font-size: .85rem; }
.q .text { font-size: 1.05rem; margin: 4px 0 8px; }
.choices { display: grid; gap: 4px; margin-top: 10px; }
.choices label, .choices button { display: block; width: 100%; text-align: left; border: 2px solid transparent; border-radius: 4px; padding: 8px 12px 8px 28px; cursor: pointer; background: transparent; color: var(--ink); font: inherit; position: relative; }
.choices label::before, .choices button::before { content: "▶"; position: absolute; left: 8px; color: transparent; }
.choices label:hover::before, .choices button:hover::before, .choices button:focus-visible::before, .choices label:has(input:checked)::before { color: var(--accent); }
.choices input { position: absolute; opacity: 0; pointer-events: none; }
.choices label:has(input:checked) { border-color: var(--accent); color: var(--accent); }
.choices .dk { color: var(--muted); }
.choices label.right, .choices .right { border-color: var(--ok); color: var(--ok); }
.choices label.wrong, .choices .wrong { border-color: var(--bad); color: var(--bad); }
.js .q.hide { display: none; }
.progress { position: sticky; top: 0; background: var(--bg); padding: 6px 0; z-index: 5; display: flex; gap: 10px; align-items: center; }
.progress .bar { flex: 1; }
.timer { font-variant-numeric: tabular-nums; color: var(--muted); font-size: .9rem; min-width: 4.5em; text-align: right; }
.explain { margin-top: 10px; border-top: 2px dashed var(--soft-line); padding-top: 10px; }
.explain p { margin: .3em 0; }
.why { border: 2px solid var(--accent); border-radius: 4px; padding: 6px 10px; margin-top: 8px; font-size: .92rem; }
.big-score { font-size: 2.4rem; text-align: center; }
.pass { color: var(--ok); } .fail { color: var(--bad); }

/* 卓の図 */
svg.tablesvg { width: 100%; max-width: 440px; display: block; margin: 6px auto; font-family: var(--font); }
.seat circle { fill: #000; stroke: var(--line); stroke-width: 2; }
.seat.mark circle { fill: var(--gold); stroke: var(--gold); }
.seat text { fill: var(--ink); font-size: 12px; text-anchor: middle; dominant-baseline: central; }
.seat.mark text { fill: #111; font-size: 15px; }
.seat .ord { fill: var(--muted); font-size: 10px; }
.felt { fill: var(--felt); stroke: var(--felt-edge); stroke-width: 6; }
.dealer circle { fill: #fff; stroke: #333; stroke-width: 1.5; }
.dealer text { fill: #111; font-size: 11px; text-anchor: middle; dominant-baseline: central; }
.felt-text { fill: #e6f5ec; font-size: 12px; text-anchor: middle; }
.chartbars rect { fill: var(--mp); }
.chartbars rect.c { fill: var(--ok); }
.chartbars text { fill: var(--muted); font-size: 10px; text-anchor: middle; }

.stage-card { display: block; text-decoration: none; color: inherit; }
.stage-card.locked { opacity: .55; }
.badge { display: inline-block; padding: 0 8px; border-radius: 3px; font-size: .75rem; border: 1px solid currentColor; }
.badge.done { color: var(--ok); } .badge.now { color: var(--accent); } .badge.lock { color: var(--muted); }
.coach-a { white-space: pre-wrap; }
.login { max-width: 400px; margin: 8vh auto; }
.legal { font-size: .78rem; color: var(--muted); text-align: center; padding: 18px 16px 8px; }
pre.copy { white-space: pre-wrap; background: #000; border: 2px solid var(--line); border-radius: 4px; padding: 10px; font-size: .82rem; max-height: 360px; overflow: auto; font-family: var(--font); }
.js .hide { display: none !important; }
.bar .fill { height: 100%; background: var(--hp); width: 0; transition: width .2s; }

/* ステータス窓（なまえ・Lv・けいけんち） */
.status { display: flex; gap: 12px; align-items: center; }
.status img { width: 56px; height: 56px; flex: 0 0 56px; }
.status .nm { color: var(--accent); }
.status .lv { font-size: 1.3rem; }
.gauge { display: flex; align-items: center; gap: 6px; font-size: .8rem; }
.gauge svg { flex: 1; height: 10px; }
.gauge .exp { fill: var(--mp); } .gauge .hp { fill: var(--hp); } .gauge .ehp { fill: var(--bad); }

/* バトル画面 */
.field { position: relative; border: 3px solid var(--line); border-radius: 8px; box-shadow: 0 0 0 3px #000; margin: 10px 3px; overflow: hidden;
  background: url("field.svg") center / 100% 100% no-repeat; height: 190px; display: flex; align-items: flex-end; justify-content: center; }
.field img.mon { width: 128px; height: 128px; margin-bottom: 12px; filter: drop-shadow(4px 4px 0 rgba(0,0,0,.5)); }
.field img.mon.hit { animation: hit .4s steps(2) 2; }
.field img.mon.down { opacity: .35; }
@keyframes hit { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .field img.mon.hit { animation: none; } }
.field .ename { position: absolute; top: 8px; left: 10px; right: 10px; display: flex; justify-content: space-between; gap: 8px;
  background: rgba(0,0,0,.75); border: 2px solid var(--line); border-radius: 4px; padding: 2px 8px; font-size: .85rem; }
.field .ename .gauge { flex: 0 0 45%; }
.msg { min-height: 3.4em; }
.msg p { margin: 0; }
.msg p + p { margin-top: .1em; }
.party { display: flex; gap: 10px; justify-content: space-between; flex-wrap: wrap; font-size: .9rem; }
.party span { white-space: nowrap; }
.topics { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.topics a { display: flex; gap: 10px; align-items: center; text-decoration: none; color: var(--ink); }
.topics .panel { margin: 3px; padding: 8px 12px; }
.topics a:hover .panel, .topics a:focus-visible .panel { border-color: var(--accent); }
.topics img { width: 48px; height: 48px; flex: 0 0 48px; }
.topics .nm { color: var(--accent); }
.quest-week { display: flex; gap: 10px; align-items: flex-start; }
.quest-week img { width: 48px; height: 48px; flex: 0 0 48px; }
.quest-week.cleared img { opacity: .4; }
.quest-week.now { border-color: var(--accent); }
@media print { nav.bottom, header.top, .noprint { display: none !important; } body { background: #fff; color: #000; padding: 0; } .panel { box-shadow: none; break-inside: avoid; background: #fff; border-color: #000; } }
.grow { flex: 1; min-width: 0; }
.topics .tp { display: flex; gap: 10px; align-items: center; width: 100%; }
.choices .ans { padding: 8px 12px 8px 28px; border: 2px solid transparent; border-radius: 4px; }
@media (max-width: 480px) { .field { height: 150px; } .field img.mon { width: 96px; height: 96px; } }

/* 学習の入口と、長文・選択肢の読みやすさ */
.doc, .q, .explain, .focus-card span { font-family: "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif; }
header.top .wrap { flex-wrap: wrap; }
header.top nav { flex-wrap: wrap; }
.learning-start { border-color: var(--accent); padding: 24px; }
.eyebrow { color: var(--accent); font-size: .85rem; margin: 0 0 8px; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover::before, .btn.primary:focus-visible::before { color: var(--accent-ink); }
.focus-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.focus-card { display: flex; flex-direction: column; gap: 6px; padding: 14px; border: 1px solid var(--soft-line); border-radius: 6px; text-decoration: none; }
.focus-card span { color: var(--muted); font-size: .85rem; }
.focus-card:hover { background: var(--accent-soft); }
:focus-visible, .choices label:has(input:focus-visible) { outline: 3px solid var(--mp); outline-offset: 3px; }
.choices button, .choices label { min-height: 48px; border-color: var(--soft-line); }
@media (max-width: 480px) {
  .focus-grid { grid-template-columns: 1fr; }
  .learning-start { padding: 16px; }
}

/* 回答を見直すための移動操作。JSなしでは全問表示のまま。 */
.quiz-nav { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-top: 12px; }
.quiz-nav [hidden] { display: none; }
.quiz-nav .btn { min-height: 44px; }
.quiz-nav .btn:focus-visible, .choices label:has(input:focus-visible) { outline: 3px solid var(--accent); outline-offset: 3px; }
.q .text:focus { outline: 2px solid var(--accent); outline-offset: 4px; }
.bar .fill { height: 100%; background: var(--accent); width: 0; transition: width .2s; }

/* スマホで読む・触る・確かめる数字の基礎。既存のテーマ色に追従。 */
.basics { font-family: system-ui, -apple-system, "Hiragino Sans", sans-serif; overflow-wrap: anywhere; }
.basics h1 { line-height: 1.5; }
.basics-hero { border-top: 5px solid var(--accent); }
.basics-path { padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.basics-path .panel { margin: 0; }
.basics .btn { min-height: 48px; max-width: 100%; }
.basics fieldset { min-width: 0; margin: 16px 0; padding: 12px; border: 1px solid var(--line); }
.basics-options { display: flex; flex-wrap: wrap; gap: 8px; }
.basics-options label { display: flex; align-items: center; gap: 5px; min-height: 48px; padding: 8px; border: 1px solid var(--line); border-radius: 8px; margin: 0 !important; }
.basics-options label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.basics :focus-visible, .basics-options label:has(input:focus-visible) { outline: 3px solid var(--accent); outline-offset: 3px; }
.pot-parts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.pot-parts div { border: 1px solid var(--line); border-radius: 8px; padding: 12px 4px; text-align: center; }
.pot-parts span, .basics-numbers span { display: block; font-size: .85rem; }
.pot-parts strong { display: block; font-size: 1.25rem; }
.basics-total { text-align: center; border-bottom: 2px solid var(--accent); padding-bottom: 12px; }
.basics-numbers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.basics-numbers strong { display: block; font-size: 1.6rem; color: var(--accent); }
.basics-numbers div { background: var(--accent-soft); padding: 12px; border-radius: 8px; }
.basics-checklist { padding-left: 1.5em; }
.basics-checklist li { margin-bottom: 12px; }
.basics select { font-size: 16px; min-height: 48px; }
@media (max-width: 520px) { .basics-path, .basics-numbers { grid-template-columns: 1fr; } .basics-action .btn { width: 100%; } }

/* スマホでも設定・知識・教材にアクセスできる、JS不要のメニュー。 */
.mobile-menu { display: none; }
@media (max-width: 759px) {
  header.top .mobile-menu { display: block; margin-left: auto; }
  header.top .mobile-menu[open] { flex: 1 0 100%; }
  .mobile-menu summary { min-height: 44px; padding: 8px 12px; cursor: pointer; border: 1px solid var(--soft-line); border-radius: 6px; }
  header.top .mobile-menu nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin: 8px 0 0; }
  header.top .mobile-menu nav a { min-height: 48px; padding: 10px 8px; overflow-wrap: anywhere; }
  .mobile-menu summary:focus-visible, .mobile-menu a:focus-visible { outline: 3px solid var(--mp); outline-offset: 2px; }
}