:root {
  --bg: #11131b;
  --panel: #1c202c;
  --panel-2: #252a38;
  --line: #3b4255;
  --text: #f6f3ea;
  --muted: #aab0c0;
  --accent: #51e5b4;
  --accent-dark: #173f36;
  --yellow: #f2c94c;
  --red: #ff5d68;
  --broken: #4b4e59;
  --shadow: 0 18px 50px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(81,229,180,.09), transparent 30rem),
    radial-gradient(circle at 90% 30%, rgba(255,93,104,.08), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
  overflow-x: hidden;
}
button, input { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible { outline: 3px solid rgba(81,229,180,.65); outline-offset: 3px; }
.topbar {
  min-height: 58px;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 8px clamp(12px, 3vw, 38px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(17,19,27,.78);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.mini-title { text-align: center; font-weight: 800; letter-spacing: .05em; }
.mini-title span { color: var(--accent); }
.top-actions { display: flex; gap: 8px; }
.icon-button {
  width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--panel); cursor: pointer; font-weight: 900;
}
.icon-button:hover { border-color: var(--accent); transform: translateY(-1px); }
main { width: min(1160px, calc(100% - 24px)); margin: 0 auto; }
.screen { display: none; min-height: calc(100vh - 112px); padding: clamp(24px, 5vh, 58px) 0; }
.screen.active { display: block; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(5px); } }
.panel { background: linear-gradient(155deg, rgba(39,44,59,.95), rgba(26,29,40,.98)); border: 1px solid var(--line); box-shadow: var(--shadow); }
#titleScreen { display: none; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(28px, 7vw, 82px); }
#titleScreen.active { display: grid; }
.hero { padding: 20px 0; }
.eyebrow { color: var(--accent); letter-spacing: .2em; font-weight: 900; font-size: .75rem; }
h1 { margin: 12px 0; font-size: clamp(2.7rem, 6vw, 5.2rem); line-height: .98; letter-spacing: -.055em; }
h1 strong { color: var(--text); text-shadow: 4px 4px 0 rgba(255,93,104,.28); }
.tagline { color: var(--muted); font-size: clamp(1rem, 2vw, 1.25rem); }
.logo-key { width: 92px; height: 92px; border-radius: 18px; display: grid; place-items: center; background: var(--panel-2); border: 3px solid var(--red); box-shadow: 9px 10px 0 rgba(255,93,104,.18); transform: rotate(-4deg); position: relative; overflow: hidden; }
.logo-key span { font-size: 3.2rem; font-weight: 900; }
.logo-key i, .logo-key::before, .logo-key::after { content:""; position: absolute; background: var(--red); width: 3px; height: 55px; transform: rotate(34deg); }
.logo-key::before { left: 35px; top: 36px; height: 70px; }
.logo-key::after { left: 55px; top: -12px; height: 64px; transform: rotate(-25deg); }
.setup-panel { border-radius: 24px; padding: clamp(20px, 4vw, 34px); }
fieldset { border: 0; padding: 0; margin: 0 0 24px; }
legend { color: var(--muted); font-weight: 800; margin-bottom: 10px; font-size: .85rem; letter-spacing: .08em; }
.segmented, .difficulty-grid { display: grid; gap: 8px; }
.segmented { grid-template-columns: 1fr 1fr; }
.difficulty-grid { grid-template-columns: repeat(5, 1fr); }
.segmented input, .difficulty-grid input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span, .difficulty-grid span { min-height: 68px; border: 1px solid var(--line); border-radius: 14px; display: flex; flex-direction: column; justify-content: center; align-items: center; cursor: pointer; background: rgba(0,0,0,.12); transition: .15s; }
.segmented b { font-size: 1.15rem; }
.segmented small, .difficulty-grid small { color: var(--muted); font-size: .68rem; margin-top: 3px; }
.segmented input:checked + span, .difficulty-grid input:checked + span { background: var(--accent-dark); border-color: var(--accent); color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.difficulty-grid span { min-height: 64px; font-weight: 900; font-size: .88rem; }
.primary-button, .secondary-button, .reroll-button { border: 0; border-radius: 14px; font-weight: 900; cursor: pointer; transition: .15s; }
.primary-button { width: 100%; min-height: 58px; background: var(--accent); color: #10251e; font-size: 1.05rem; box-shadow: 0 8px 0 #258868; }
.primary-button:hover { transform: translateY(-2px); box-shadow: 0 10px 0 #258868; }
.primary-button:active { transform: translateY(6px); box-shadow: 0 2px 0 #258868; }
.primary-button span { float: right; opacity: .65; font-size: .8rem; margin-right: 12px; }
.secondary-button { width: 100%; min-height: 52px; background: var(--panel-2); border: 1px solid var(--line); }
.text-button { width: 100%; border: 0; background: transparent; color: var(--muted); padding: 15px; cursor: pointer; text-decoration: underline; text-underline-offset: 4px; }
.title-footer { grid-column: 1 / -1; display: flex; justify-content: space-between; color: var(--muted); font-size: .8rem; border-top: 1px solid rgba(255,255,255,.07); }
.data-note strong { color: var(--accent); }
.hud { border-radius: 18px; min-height: 78px; padding: 12px 18px; display: grid; grid-template-columns: 1fr 1.3fr 1fr 1fr 1fr; align-items: center; gap: 8px; }
.hud-item, .hud-main { display: flex; flex-direction: column; align-items: center; border-right: 1px solid var(--line); }
.hud-item:last-child { border: 0; }
.hud span { color: var(--muted); font-weight: 800; font-size: .68rem; letter-spacing: .09em; }
.hud strong { font-size: 1.25rem; font-variant-numeric: tabular-nums; }
.hud-main strong { color: var(--accent); font-size: clamp(1.8rem, 4vw, 2.7rem); line-height: 1; }
.word-zone { text-align: center; padding: 24px 0 16px; }
.difficulty-badge { display: inline-flex; border-radius: 999px; padding: 5px 12px; background: rgba(81,229,180,.13); color: var(--accent); font-weight: 900; font-size: .75rem; }
.instruction { color: var(--muted); margin: 10px 0 17px; font-size: .85rem; }
.word-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.word-card { min-height: 124px; border-radius: 18px; background: linear-gradient(145deg, #faf8f0, #ddd9ce); color: #191b22; display: grid; place-items: center; padding: 12px; box-shadow: 0 8px 0 #8c8c91, 0 18px 30px rgba(0,0,0,.25); position: relative; overflow: hidden; }
.word-card::after { content:""; position:absolute; inset:auto -20px -42px auto; width:100px; height:100px; border-radius:50%; background:rgba(81,229,180,.2); }
.word-card strong { font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(1.8rem, 4.2vw, 3.4rem); letter-spacing: .06em; z-index: 1; overflow-wrap: anywhere; }
.word-card small { display: none; }
.input-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; margin-top: 24px; }
.input-display { min-height: 68px; border-radius: 14px; border: 2px solid var(--line); background: #0c0e14; display:flex; align-items:center; justify-content:center; font-size: clamp(1.3rem,3vw,2rem); letter-spacing: .08em; font-weight:800; position:relative; overflow:hidden; }
.input-display.active { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(81,229,180,.09); }
.input-display.error { animation: shake .25s; border-color: var(--red); }
.input-display.success { border-color: var(--accent); background: rgba(81,229,180,.12); }
@keyframes shake { 25%{transform:translateX(-7px)} 50%{transform:translateX(7px)} 75%{transform:translateX(-4px)} }
.placeholder { color: #565c6c; font-weight: 500; font-size: 1rem; letter-spacing: 0; }
.caret { width: 2px; height: 28px; background: var(--accent); margin-left: 5px; animation: blink .8s steps(1) infinite; }
@keyframes blink { 50%{opacity:0} }
.reroll-button { padding: 0 22px; background: var(--panel-2); border: 1px solid var(--line); }
.reroll-button span { font-size: 1.4rem; }
.reroll-button b { display:inline-grid; place-items:center; width:22px; height:22px; border-radius:50%; background:var(--accent); color:#10251e; margin-left:5px; }
.reroll-button:disabled { opacity:.35; cursor:not-allowed; }
.feedback { min-height: 28px; margin-top: 10px; font-weight: 800; color: var(--muted); }
.feedback.ok { color: var(--accent); }
.feedback.ng { color: var(--red); }
.keyboard-zone { border-radius: 20px; padding: 18px; }
.keyboard-head { display:flex; justify-content:space-between; gap:15px; align-items:center; margin-bottom:12px; }
.legend { display:flex; flex-wrap:wrap; gap:14px; color:var(--muted); font-size:.72rem; }
.legend span { display:flex; align-items:center; gap:5px; }
.state-dot { width:10px; height:10px; border-radius:3px; background:#e9e7de; }
.state-dot.warm { background:var(--yellow); }.state-dot.danger{background:var(--red)}.state-dot.broken{background:var(--broken)}
.keyboard { display:flex; flex-direction:column; gap:7px; user-select:none; }
.key-row { display:flex; justify-content:center; gap:6px; }
.key { width:clamp(36px,6.3vw,68px); height:clamp(46px,5.2vw,60px); border-radius:9px; background:#edeae0; color:#161820; box-shadow:0 5px 0 #8b8d96; display:grid; place-items:center; font-weight:900; text-transform:uppercase; position:relative; transition:.18s; overflow:hidden; }
.key.wide { width:clamp(82px,13vw,145px); }
.key .alt { position:absolute; right:5px; top:3px; color:#157a5e; font-size:.65rem; opacity:0; }
.key.warm { background:var(--yellow); box-shadow:0 5px 0 #9b7412; }
.key.danger { background:var(--red); color:#fff; box-shadow:0 5px 0 #922d36; }
.key.danger::before,.key.danger::after { content:""; position:absolute; width:2px; height:52px; background:#5f121a; transform:rotate(35deg); }
.key.danger::after { transform:rotate(-22deg); left:60%; top:22%; }
.key.broken { background:#4b4e59; color:#8f93a0; box-shadow:0 2px 0 #252832; transform:translateY(4px) rotate(-2deg); }
.key.broken::after { content:"×"; position:absolute; font-size:2rem; color:rgba(255,255,255,.22); }
.key.just-hit { animation:keyHit .15s; }
@keyframes keyHit { 50%{ transform:translateY(4px); box-shadow:0 1px 0 #555; } }
.key .recover { position:absolute; bottom:2px; font-size:.56rem; color:#fff; background:rgba(0,0,0,.45); padding:1px 4px; border-radius:5px; }
.result-card { width:min(620px,100%); margin:0 auto; border-radius:28px; padding:clamp(24px,5vw,44px); text-align:center; }
.result-card h2 { margin:6px 0; font-size:1.5rem; }
.result-rank { width:104px;height:104px;border-radius:50%;margin:18px auto 8px;display:grid;place-items:center;font-size:4rem;font-weight:1000;color:var(--accent);border:6px solid var(--accent);box-shadow:0 0 35px rgba(81,229,180,.18); }
.result-main { display:flex;flex-direction:column;margin:12px 0 24px; }
.result-main span,.result-grid span { color:var(--muted);font-size:.72rem;font-weight:800;letter-spacing:.1em; }
.result-main strong { font-size:clamp(2.5rem,8vw,4.5rem);line-height:1;font-variant-numeric:tabular-nums; }
.result-grid { display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:15px;overflow:hidden; }
.result-grid div { padding:13px 5px;display:flex;flex-direction:column;border-right:1px solid var(--line); }
.result-grid div:last-child{border:0}.result-grid strong{font-size:1.15rem}
.result-comment { min-height:48px;color:var(--muted); }
.result-actions { display:grid;grid-template-columns:1fr 1fr;gap:12px; }
.result-actions .text-button { grid-column:1/-1; }
.modal-backdrop { position:fixed;inset:0;background:rgba(5,6,10,.82);backdrop-filter:blur(7px);display:grid;place-items:center;padding:16px;z-index:50; }
.modal-backdrop[hidden], .modal[hidden] { display:none; }
.modal { width:min(680px,100%);max-height:90vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:clamp(22px,4vw,38px);box-shadow:var(--shadow);position:relative; }
.modal.compact { width:min(430px,100%);text-align:center; }
.modal h2 { margin-top:0; }
.modal-close { position:absolute;right:14px;top:12px;width:38px;height:38px;border:0;border-radius:50%;background:var(--panel-2);cursor:pointer;font-size:1.4rem; }
.tutorial-steps { display:grid;gap:17px; }
.tutorial-steps article { display:grid;grid-template-columns:38px 1fr;gap:12px;align-items:start; }
.tutorial-steps article>b { display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--accent);color:#10251e; }
.tutorial-steps h3 { margin:2px 0 5px;font-size:1rem; }.tutorial-steps p{margin:0;color:var(--muted);line-height:1.65;font-size:.88rem}
.tutorial-example { display:inline-flex;align-items:center;gap:12px;margin-top:8px;padding:7px 12px;border-radius:9px;background:#f5f2e9;color:#171820; }.tutorial-example span{font-family:serif;font-weight:900}.tutorial-example small{color:#8d3450}
.modal-note { color:var(--muted);font-size:.75rem;border-top:1px solid var(--line);padding-top:14px; }
.site-footer { min-height:52px;display:flex;align-items:center;justify-content:center;gap:14px;color:#73798a;font-size:.72rem;border-top:1px solid rgba(255,255,255,.06); }
.site-footer button { border:0;background:transparent;color:inherit;text-decoration:underline;cursor:pointer; }
@media (max-width: 850px) {
  #titleScreen.active { grid-template-columns:1fr; }
  .hero { text-align:center; }.logo-key{margin:auto}.title-footer{display:none}.difficulty-grid{grid-template-columns:repeat(3,1fr)}
  .hud { grid-template-columns:repeat(4,1fr); }.hud-main{grid-column:1/-1;grid-row:1;border-bottom:1px solid var(--line);border-right:0;padding-bottom:9px}.hud-item{border-right:1px solid var(--line)}.hud-item:last-child{display:none}
}
@media (max-width: 620px) {
  .mini-title{font-size:.78rem}.word-cards{gap:7px}.word-card{min-height:90px;border-radius:13px}.word-card strong{font-size:clamp(1.3rem,7vw,2.1rem)}
  .input-row{grid-template-columns:1fr}.reroll-button{min-height:44px}.keyboard-zone{padding:10px 4px}.keyboard-head{padding:0 8px}.legend{gap:7px}.key-row{gap:3px}.key{width:9vw;height:43px;border-radius:6px;font-size:.75rem}.key.wide{width:19vw}.result-grid{grid-template-columns:1fr 1fr}.result-grid div:nth-child(2){border-right:0}.result-grid div:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (prefers-reduced-motion: reduce) { *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important} }

/* v0.2.0: HP・終了時の読み・ローカルTOP5 */
[hidden] { display: none !important; }
.hud { grid-template-columns: 1fr 1.3fr 1fr 1fr 1.25fr 1fr; }
.hud-lives strong { display:flex; gap:2px; font-size:1.05rem; line-height:1; }
.heart { display:inline-block; transition:.18s; }
.heart.alive { color:var(--red); filter:drop-shadow(0 0 5px rgba(255,93,104,.35)); }
.heart.lost { color:#555b6b; transform:scale(.85); }
.feedback.waiting { color:var(--yellow); }

.result-answers { margin:22px 0; padding:18px; border:1px solid var(--line); border-radius:16px; background:rgba(0,0,0,.16); text-align:left; }
.result-answers h3 { margin:0 0 4px; font-size:1rem; }
.result-answers>p { margin:0 0 14px; color:var(--muted); font-size:.78rem; }
.result-answer-list { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; }
.result-answer-item { min-width:0; padding:14px; border-radius:13px; background:#f4f1e8; color:#191b22; }
.result-answer-item>strong { display:block; margin-bottom:8px; font-family:"Yu Mincho","Hiragino Mincho ProN",serif; font-size:clamp(1.25rem,3vw,1.8rem); overflow-wrap:anywhere; }
.result-answer-item ul { list-style:none; padding:0; margin:0; display:grid; gap:5px; }
.result-answer-item li { display:flex; flex-direction:column; gap:2px; }
.result-answer-item li span { font-size:.85rem; font-weight:800; }
.result-answer-item code { color:#8d3450; font-size:.78rem; overflow-wrap:anywhere; }

.setup-secondary { margin-top:12px; }
.highscore-card { width:min(820px,100%); margin:0 auto; border-radius:28px; padding:clamp(22px,4vw,40px); }
.highscore-card h2 { margin:5px 0; font-size:clamp(2rem,5vw,3rem); }
.highscore-note { margin-top:0; color:var(--muted); }
.highscore-filters { display:grid; grid-template-columns:.75fr 1.25fr; gap:22px; margin:26px 0 22px; }
.highscore-filters fieldset { margin:0; }
.compact-segmented span { min-height:58px; }
.score-difficulty-grid span { min-height:58px; }
.scoreboard-heading { display:flex; align-items:end; justify-content:space-between; gap:14px; padding:15px 2px 11px; border-bottom:1px solid var(--line); }
.scoreboard-heading div { display:flex; flex-direction:column; }
.scoreboard-heading span { color:var(--muted); font-size:.75rem; font-weight:800; letter-spacing:.08em; }
.scoreboard-heading strong { color:var(--accent); font-size:1.35rem; }
.highscore-list { list-style:none; counter-reset:none; margin:0; padding:0; display:grid; gap:9px; }
.highscore-list li { display:grid; grid-template-columns:54px 1fr; align-items:center; min-height:78px; padding:10px 16px 10px 10px; border:1px solid var(--line); border-radius:14px; background:rgba(0,0,0,.14); }
.highscore-list li:first-child { border-color:rgba(81,229,180,.7); background:rgba(81,229,180,.08); }
.score-rank { width:40px; height:40px; display:grid; place-items:center; border-radius:12px; background:var(--panel-2); color:var(--accent); font-size:1.15rem; font-weight:1000; }
.highscore-list li div { display:flex; justify-content:space-between; align-items:center; gap:16px; }
.highscore-list strong { font-size:clamp(1.35rem,3vw,1.85rem); font-variant-numeric:tabular-nums; }
.highscore-list small { color:var(--muted); text-align:right; }
.highscore-empty { padding:38px; margin:0; text-align:center; color:var(--muted); border:1px dashed var(--line); border-radius:14px; }
.highscore-actions { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-top:20px; }
.highscore-actions .text-button { text-decoration:none; border:1px solid var(--line); border-radius:14px; }

/* 反転入力を廃止したため代替キー表示は使用しない */
.key .alt { display:none !important; }

@media (max-width:850px) {
  .hud { grid-template-columns:repeat(5,1fr); }
  .hud-main { grid-column:1/-1; }
  .highscore-filters { grid-template-columns:1fr; }
}
@media (max-width:620px) {
  .result-answer-list { grid-template-columns:1fr; }
  .highscore-list li { grid-template-columns:46px 1fr; padding-right:10px; }
  .highscore-list li div { display:block; }
  .highscore-list small { display:block; margin-top:3px; text-align:left; }
  .highscore-actions { grid-template-columns:1fr; }
  .score-difficulty-grid { grid-template-columns:repeat(3,1fr); }
}

/* v0.3.0: CPU 1 VS 1・対戦メニュー */
.battle-button {
  width:100%; min-height:58px; border:1px solid rgba(255,200,74,.55); border-radius:14px;
  background:linear-gradient(135deg,rgba(255,200,74,.16),rgba(255,93,104,.12));
  color:var(--text); font:inherit; font-weight:1000; letter-spacing:.06em; cursor:pointer;
  box-shadow:0 8px 28px rgba(0,0,0,.16); transition:.18s;
}
.battle-button:hover { transform:translateY(-2px); border-color:var(--yellow); }
.menu-card,.cpu-setup-card { width:min(820px,100%); margin:0 auto; padding:clamp(24px,5vw,44px); border-radius:28px; }
.menu-card h2,.cpu-setup-card h2 { margin:5px 0; font-size:clamp(2rem,6vw,3.6rem); }
.menu-lead { margin:0 0 28px; color:var(--muted); line-height:1.7; }
.versus-menu-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.menu-tile { min-height:190px; border:1px solid var(--line); border-radius:20px; padding:24px; background:var(--panel-2); color:var(--text); text-align:left; cursor:pointer; position:relative; transition:.2s; }
.menu-tile:not(:disabled):hover { transform:translateY(-3px); border-color:var(--accent); box-shadow:0 12px 34px rgba(0,0,0,.2); }
.menu-tile strong { display:block; color:var(--accent); font-size:1.65rem; margin-bottom:10px; }
.menu-tile span { color:var(--muted); line-height:1.6; }
.menu-tile em { position:absolute; right:18px; bottom:16px; color:var(--yellow); font-style:normal; font-size:.68rem; font-weight:900; letter-spacing:.12em; }
.menu-tile.coming-soon { opacity:.58; cursor:not-allowed; }
.menu-back { display:block; margin:22px auto 0; }
.cpu-setup-card fieldset { margin-bottom:22px; }
.cpu-level-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:8px; }
.cpu-level-grid label { cursor:pointer; }
.cpu-level-grid input { position:absolute; opacity:0; pointer-events:none; }
.cpu-level-grid span { min-height:72px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:3px; border:1px solid var(--line); border-radius:13px; background:rgba(0,0,0,.12); transition:.16s; }
.cpu-level-grid b { font-size:1.05rem; }
.cpu-level-grid small { color:var(--muted); font-size:.68rem; }
.cpu-level-grid input:checked + span { color:#10251e; background:var(--accent); border-color:var(--accent); transform:translateY(-2px); box-shadow:0 7px 20px rgba(81,229,180,.18); }
.cpu-level-grid input:checked + span small { color:#245546; }

.duel-panel { display:grid; grid-template-columns:1fr auto 1.5fr; align-items:center; gap:16px; padding:13px 18px; margin-bottom:14px; border-radius:18px; }
.duel-side { min-width:0; }
.duel-side strong { display:block; font-size:clamp(1.55rem,4vw,2.35rem); line-height:1.05; font-variant-numeric:tabular-nums; }
.duel-name { color:var(--accent); font-size:.78rem; font-weight:1000; letter-spacing:.11em; }
.duel-side>small,.duel-cpu-head small { color:var(--muted); font-size:.72rem; }
.duel-vs { width:48px; height:48px; display:grid; place-items:center; border-radius:50%; color:#171923; background:var(--yellow); font-weight:1000; box-shadow:0 0 24px rgba(255,200,74,.18); }
.duel-cpu-head { display:flex; justify-content:space-between; align-items:center; gap:12px; }
.duel-cpu-meta { display:flex; flex-wrap:wrap; gap:10px; margin:4px 0 7px; color:var(--muted); font-size:.68rem; font-weight:800; }
.duel-cpu-meta #duelCpuLives { color:var(--red); letter-spacing:1px; }
.mini-keyboard { display:grid; grid-template-columns:repeat(13,minmax(8px,1fr)); gap:3px; max-width:390px; }
.mini-key { height:9px; border-radius:2px; background:#e9e7de; opacity:.72; transition:.18s; }
.mini-key.warm { background:var(--yellow); opacity:1; }
.mini-key.danger { background:var(--red); opacity:1; }
.mini-key.broken { background:var(--broken); opacity:.48; box-shadow:inset 0 0 0 1px #757b8a; }

.battle-result { margin:22px 0; padding:18px; border:1px solid var(--line); border-radius:17px; background:rgba(0,0,0,.15); text-align:left; }
.battle-result h3 { margin:0 0 12px; text-align:center; color:var(--yellow); }
.battle-result-row { display:grid; grid-template-columns:130px 150px 1fr; align-items:center; gap:14px; padding:13px 14px; border-radius:12px; }
.battle-result-row + .battle-result-row { margin-top:8px; }
.battle-result-row.player { background:rgba(81,229,180,.09); border:1px solid rgba(81,229,180,.24); }
.battle-result-row.cpu { background:rgba(255,93,104,.07); border:1px solid rgba(255,93,104,.18); }
.battle-result-row span { font-weight:1000; color:var(--accent); }
.battle-result-row.cpu span { color:var(--red); }
.battle-result-row strong { font-size:1.5rem; font-variant-numeric:tabular-nums; }
.battle-result-row small { color:var(--muted); text-align:right; }
.result-rank.battle-rank { width:128px; border-radius:28px; font-size:2.1rem; }
.player-finished .input-display { opacity:.55; }

@media (max-width:720px) {
  .versus-menu-grid { grid-template-columns:1fr; }
  .cpu-level-grid { grid-template-columns:repeat(3,1fr); }
  .duel-panel { grid-template-columns:1fr auto 1.25fr; gap:9px; padding:11px; }
  .duel-vs { width:38px; height:38px; font-size:.78rem; }
  .duel-cpu-meta { gap:5px 8px; }
  .mini-keyboard { grid-template-columns:repeat(9,minmax(8px,1fr)); }
  .battle-result-row { grid-template-columns:90px 1fr; }
  .battle-result-row small { grid-column:1/-1; text-align:left; }
}

/* v0.3.1: 1画面完結のゲームレイアウト */
body.game-view {
  height: 100dvh;
  overflow: hidden;
}
body.game-view .topbar {
  min-height: 46px;
  padding-block: 4px;
}
body.game-view .icon-button {
  width: 36px;
  height: 36px;
}
body.game-view .site-footer {
  display: none;
}
body.game-view main {
  width: min(1160px, calc(100% - 16px));
  height: calc(100dvh - 46px);
}
#gameScreen {
  --game-gap: clamp(4px, .8dvh, 10px);
  --key-gap-x: clamp(3px, .42vw, 6px);
  --key-gap-y: clamp(3px, .55dvh, 7px);
  --key-width: clamp(30px, 5.55vw, 66px);
  --key-height: clamp(28px, 5.15dvh, 56px);
}
#gameScreen.active {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  padding: clamp(5px, .9dvh, 10px) 0;
  gap: var(--game-gap);
  overflow: hidden;
  animation: fade .18s ease;
}
#gameScreen .hud {
  flex: 0 0 auto;
  min-height: clamp(48px, 7.2dvh, 68px);
  padding: clamp(5px, .9dvh, 10px) clamp(9px, 1.4vw, 16px);
}
#gameScreen .hud span { font-size: clamp(.56rem, 1.15dvh, .68rem); }
#gameScreen .hud strong { font-size: clamp(.92rem, 2.2dvh, 1.25rem); }
#gameScreen .hud-main strong { font-size: clamp(1.35rem, 3.6dvh, 2.35rem); }
#gameScreen .duel-panel {
  flex: 0 0 auto;
  min-height: 0;
  margin: 0;
  padding: clamp(5px, .8dvh, 10px) clamp(9px, 1.4vw, 16px);
  gap: clamp(7px, 1.2vw, 16px);
}
#gameScreen .duel-side strong { font-size: clamp(1.15rem, 2.8dvh, 1.9rem); }
#gameScreen .duel-vs {
  width: clamp(32px, 5dvh, 44px);
  height: clamp(32px, 5dvh, 44px);
  font-size: clamp(.68rem, 1.4dvh, .9rem);
}
#gameScreen .duel-cpu-meta { margin-block: 2px 4px; }
#gameScreen .mini-keyboard { gap: 2px; }
#gameScreen .mini-key { height: clamp(5px, .85dvh, 8px); }
#gameScreen .word-zone {
  flex: 1 1 auto;
  min-height: 0;
  padding: 0;
  display: grid;
  grid-template-rows: auto auto minmax(58px, 1fr) auto auto;
  align-content: stretch;
}
#gameScreen .difficulty-badge {
  padding: clamp(2px, .45dvh, 5px) 10px;
  font-size: clamp(.62rem, 1.25dvh, .75rem);
}
#gameScreen .instruction {
  margin: clamp(2px, .45dvh, 6px) 0 clamp(4px, .7dvh, 9px);
  font-size: clamp(.67rem, 1.45dvh, .84rem);
  line-height: 1.25;
}
#gameScreen .word-cards {
  min-height: 0;
  gap: clamp(6px, 1vw, 13px);
}
#gameScreen .word-card {
  height: 100%;
  min-height: clamp(58px, 10.5dvh, 108px);
  border-radius: clamp(11px, 1.7dvh, 18px);
  padding: clamp(6px, 1.1dvh, 12px);
  box-shadow: 0 clamp(4px, .8dvh, 8px) 0 #8c8c91, 0 10px 20px rgba(0,0,0,.2);
}
#gameScreen .word-card strong {
  font-size: clamp(1.2rem, min(4vw, 4.8dvh), 3rem);
  line-height: 1.08;
}
#gameScreen .input-row {
  margin-top: clamp(5px, .9dvh, 11px);
  gap: clamp(6px, 1vw, 11px);
}
#gameScreen .input-display {
  min-height: clamp(38px, 6.1dvh, 56px);
  font-size: clamp(1rem, 2.8dvh, 1.75rem);
}
#gameScreen .reroll-button {
  min-height: clamp(38px, 6.1dvh, 56px);
  padding-inline: clamp(10px, 1.7vw, 20px);
}
#gameScreen .feedback {
  min-height: clamp(17px, 2.7dvh, 25px);
  margin-top: clamp(2px, .45dvh, 6px);
  font-size: clamp(.68rem, 1.45dvh, .88rem);
  line-height: 1.2;
}
#gameScreen .keyboard-zone {
  flex: 0 0 auto;
  border-radius: clamp(12px, 2dvh, 20px);
  padding: clamp(6px, 1dvh, 12px) clamp(5px, 1vw, 12px);
}
#gameScreen .keyboard-head {
  margin-bottom: clamp(3px, .55dvh, 8px);
  min-height: 16px;
}
#gameScreen .legend { gap: clamp(6px, 1.1vw, 13px); font-size: clamp(.58rem, 1.15dvh, .72rem); }
#gameScreen .recovery-note { font-size: clamp(.58rem, 1.15dvh, .72rem); }
#gameScreen .state-dot { width: clamp(7px, 1.15dvh, 10px); height: clamp(7px, 1.15dvh, 10px); }
#gameScreen .keyboard { gap: var(--key-gap-y); }
#gameScreen .key-row { gap: var(--key-gap-x); }
#gameScreen .key {
  width: var(--key-width);
  height: var(--key-height);
  border-radius: clamp(5px, 1dvh, 9px);
  font-size: clamp(.66rem, 1.65dvh, 1rem);
  box-shadow: 0 clamp(2px, .55dvh, 5px) 0 #8b8d96;
}
#gameScreen .key.wide {
  width: calc(var(--key-width) * 2 + var(--key-gap-x));
}
#gameScreen .key .recover {
  bottom: 1px;
  font-size: clamp(.43rem, .9dvh, .56rem);
}

@media (max-height: 680px) {
  body.game-view .topbar { min-height: 42px; padding-block: 2px; }
  body.game-view .icon-button { width: 34px; height: 34px; }
  body.game-view main { height: calc(100dvh - 42px); }
  #gameScreen { --key-height: clamp(25px, 4.7dvh, 36px); --game-gap: 4px; }
  #gameScreen .hud { min-height: 44px; }
  #gameScreen .word-card { min-height: 54px; }
  #gameScreen .keyboard-head { margin-bottom: 2px; }
}

@media (max-width: 720px) {
  body.game-view main { width: calc(100% - 10px); }
  #gameScreen { --key-width: clamp(27px, 8.65vw, 52px); --key-gap-x: 2px; }
  #gameScreen .hud { grid-template-columns: repeat(5, 1fr); }
  #gameScreen .hud-main { grid-column: 1 / -1; padding-bottom: 3px; }
  #gameScreen .input-row { grid-template-columns: 1fr auto; }
  #gameScreen .reroll-button { min-width: 88px; }
  #gameScreen .keyboard-head { padding-inline: 3px; }
}

/* Topbarの実寸に追従して、ゲーム領域を残り高さへ収める */
body.game-view #app {
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
body.game-view .topbar { flex: 0 0 auto; }
body.game-view main {
  flex: 1 1 auto;
  min-height: 0;
  height: auto;
}

/* v0.4.0: Cloudflare無料枠のフレンド対戦 */
.online-setup-card,.online-lobby-card { width:min(940px,100%); margin:0 auto; padding:clamp(22px,4vw,40px); border-radius:28px; }
.online-setup-card h2,.online-lobby-card h2 { margin:5px 0; font-size:clamp(2rem,6vw,3.5rem); }
.online-notice,.connection-status,.lobby-message { min-height:24px; color:var(--muted); font-size:.84rem; }
.online-notice.error,.lobby-message.error { color:var(--red); }
.online-notice.ok,.connection-status.ok { color:var(--accent); }
.online-entry-grid { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.online-entry-card { padding:20px; border:1px solid var(--line); border-radius:18px; background:rgba(0,0,0,.12); }
.online-entry-card h3 { margin:0 0 18px; color:var(--accent); }
.online-entry-card fieldset { margin-bottom:16px; }
.field-label { display:grid; gap:7px; margin-bottom:16px; color:var(--muted); font-size:.78rem; font-weight:800; }
.field-label input,.field-label select,.online-entry-card select { width:100%; min-height:48px; border:1px solid var(--line); border-radius:12px; padding:0 13px; background:#0f1118; color:var(--text); }
.room-code-input { text-transform:uppercase; letter-spacing:.25em; font-size:1.3rem; font-weight:1000; text-align:center; }
.online-small-note { color:var(--muted); font-size:.75rem; line-height:1.6; }
.room-code-box { display:grid; grid-template-columns:auto 1fr auto auto; gap:10px; align-items:center; padding:15px; border:1px solid rgba(81,229,180,.35); border-radius:16px; background:rgba(81,229,180,.07); }
.room-code-box span { color:var(--muted); font-size:.68rem; font-weight:900; letter-spacing:.1em; }
.room-code-box strong { color:var(--accent); font-size:clamp(1.7rem,5vw,2.7rem); letter-spacing:.18em; }
.room-code-box button { min-height:40px; border:1px solid var(--line); border-radius:10px; background:var(--panel-2); cursor:pointer; }
.connection-status { margin:10px 0; }
.lobby-settings-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin:14px 0; }
.lobby-settings-grid div { display:flex; flex-direction:column; align-items:center; padding:12px; border:1px solid var(--line); border-radius:13px; background:rgba(0,0,0,.12); }
.lobby-settings-grid span { color:var(--muted); font-size:.68rem; }
.lobby-settings-grid strong { margin-top:3px; }
.lobby-player-list { list-style:none; padding:0; margin:16px 0; display:grid; grid-template-columns:repeat(2,1fr); gap:9px; }
.lobby-player-list li { display:grid; grid-template-columns:1fr auto; gap:8px; align-items:center; padding:13px 14px; border:1px solid var(--line); border-radius:13px; background:rgba(0,0,0,.12); }
.lobby-player-list li.self { border-color:rgba(81,229,180,.6); }
.lobby-player-name { min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-weight:900; }
.lobby-player-badges { display:flex; gap:5px; align-items:center; }
.lobby-badge { padding:3px 7px; border-radius:999px; color:var(--muted); background:var(--panel-2); font-size:.62rem; font-weight:900; }
.lobby-badge.host { color:#171923; background:var(--yellow); }
.lobby-badge.ready { color:#10251e; background:var(--accent); }
.lobby-badge.offline { color:#fff; background:var(--red); }
.lobby-actions { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-top:14px; }
.lobby-actions .text-button { grid-column:1/-1; }
.lobby-actions button:disabled { opacity:.4; cursor:not-allowed; transform:none; box-shadow:none; }

.online-duel-panel { flex:0 0 auto; min-height:0; margin:0; padding:clamp(5px,.8dvh,9px) clamp(8px,1.2vw,14px); border-radius:16px; }
.online-duel-head { display:flex; justify-content:space-between; align-items:center; gap:10px; margin-bottom:5px; font-size:clamp(.58rem,1.15dvh,.72rem); color:var(--muted); }
.online-duel-head strong { color:var(--accent); letter-spacing:.08em; }
.online-player-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(118px,1fr)); gap:5px; }
.online-player-card { min-width:0; padding:6px 7px; border:1px solid var(--line); border-radius:10px; background:rgba(0,0,0,.14); }
.online-player-card.self { border-color:rgba(81,229,180,.65); background:rgba(81,229,180,.07); }
.online-player-card.offline { opacity:.55; }
.online-player-card.finished { box-shadow:inset 0 0 0 1px rgba(255,200,74,.45); }
.online-player-top { display:flex; justify-content:space-between; gap:5px; align-items:center; }
.online-player-top strong { min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:clamp(.66rem,1.25dvh,.78rem); }
.online-player-top span { color:var(--accent); font-weight:1000; font-size:clamp(.72rem,1.45dvh,.9rem); font-variant-numeric:tabular-nums; }
.online-player-meta { display:flex; justify-content:space-between; gap:4px; margin:2px 0 4px; color:var(--muted); font-size:clamp(.5rem,.95dvh,.62rem); }
.online-mini-keyboard { display:grid; grid-template-columns:repeat(13,1fr); gap:1px; }
.online-mini-key { height:clamp(3px,.55dvh,5px); border-radius:1px; background:#dcd9d0; opacity:.65; }
.online-mini-key.warm { background:var(--yellow); opacity:1; }.online-mini-key.danger{background:var(--red);opacity:1}.online-mini-key.broken{background:var(--broken);opacity:.42}
.online-countdown { position:fixed; inset:0; z-index:50; display:grid; place-items:center; align-content:center; background:rgba(10,12,18,.82); backdrop-filter:blur(5px); }
.online-countdown span { color:var(--muted); letter-spacing:.25em; font-weight:900; }
.online-countdown strong { color:var(--accent); font-size:min(28vw,12rem); line-height:1; text-shadow:0 0 55px rgba(81,229,180,.35); }
.online-result { margin:22px 0; padding:18px; border:1px solid var(--line); border-radius:17px; background:rgba(0,0,0,.15); text-align:left; }
.online-result h3 { margin:0 0 12px; text-align:center; color:var(--yellow); }
.online-result-list { list-style:none; margin:0; padding:0; display:grid; gap:7px; }
.online-result-list li { display:grid; grid-template-columns:44px 1fr auto; gap:10px; align-items:center; padding:11px 12px; border:1px solid var(--line); border-radius:12px; }
.online-result-list li.self { border-color:rgba(81,229,180,.65); background:rgba(81,229,180,.07); }
.online-result-list .place { display:grid; place-items:center; width:34px; height:34px; border-radius:10px; color:#171923; background:var(--yellow); font-weight:1000; }
.online-result-list .result-player { display:flex; flex-direction:column; min-width:0; }
.online-result-list .result-player strong { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.online-result-list .result-player small { color:var(--muted); }
.online-result-list .result-score { font-size:1.25rem; font-weight:1000; font-variant-numeric:tabular-nums; }

body.online-match #gameScreen .word-zone { min-height:0; }
body.online-match #gameScreen .online-duel-panel + .online-countdown + .word-zone { flex:1 1 auto; }

@media (max-width:760px) {
  .online-entry-grid { grid-template-columns:1fr; }
  .room-code-box { grid-template-columns:1fr 1fr; text-align:center; }
  .room-code-box span,.room-code-box strong { grid-column:1/-1; }
  .lobby-player-list { grid-template-columns:1fr; }
  .online-player-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-height:680px) {
  #gameScreen .online-duel-panel { padding-block:4px; }
  #gameScreen .online-player-grid { grid-template-columns:repeat(4,minmax(0,1fr)); }
  #gameScreen .online-player-card { padding:4px 5px; }
  #gameScreen .online-player-meta { margin-block:1px 2px; }
}