:root{
  --bg:#f5f4f0; --surface:#fbfbf9; --panel:#ffffff; --panel-soft:#f7f6f2;
  --ink:#1c1c1a; --ink-hover:#3a3935; --ink-2:#55534d; --sub:#7a776f; --muted:#8a877f;
  --line:#e3e1db; --line-2:#dcdad3; --line-3:#efeee9; --hover:#efeee9; --soft:#f3f2ee; --track:#ebe9e3;
  --accent:#e5007d; --accent-soft:#fde3f0; --wide:#2f6bff; --tight:#ff6a1a;
  --font:"IBM Plex Sans KR",sans-serif; --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;touch-action:manipulation}
.mono-label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:14px;min-width:0;flex-wrap:wrap}
.brand-title{margin:0;font-size:17px;font-weight:700;letter-spacing:-.01em}
.actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.btn{height:36px;padding:0 14px;background:transparent;border:1px solid var(--line-2);border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--hover)}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.btn--accent{background:var(--accent);color:#fff;border:none;font-weight:500}
.btn--accent:hover{background:var(--accent);filter:brightness(1.08)}
.btn--lg{height:42px;padding:0 20px;font-size:14px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (max-width:640px){ .topbar{padding:14px 16px} }

/* ---------- 레이아웃 ---------- */
.kg{flex:1;display:flex;flex-wrap:wrap;align-items:stretch;min-height:0}
.stage{flex:999 1 560px;min-width:0;display:flex;flex-direction:column;gap:18px;padding:32px 28px 40px;align-items:center}
.stage > *{width:100%;max-width:880px}
.side{flex:1 1 280px;min-width:0;max-width:100%;border-left:1px solid var(--line);background:var(--panel);padding:28px 24px 40px;display:flex;flex-direction:column;gap:26px}
.group{display:flex;flex-direction:column;gap:12px}
.group + .group{border-top:1px solid var(--line-3);padding-top:22px}
.rules{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:9px;font-size:13px;color:var(--ink-2);line-height:1.6;counter-reset:rule}
.rules li{display:flex;gap:10px}
.rules li::before{counter-increment:rule;content:counter(rule,decimal-leading-zero);font-family:var(--mono);font-size:11px;color:var(--accent);padding-top:3px;flex-shrink:0}
.keys{display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--ink-2)}
.keys div{display:flex;justify-content:space-between;align-items:center;gap:12px}
.kbd{display:inline-block;font-family:var(--mono);font-size:11px;line-height:1.4;padding:1px 6px;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;background:var(--surface);color:var(--ink)}

/* ---------- HUD ---------- */
.hud{display:flex;gap:8px;flex-wrap:wrap}
.hud-cell{display:flex;flex-direction:column;gap:3px;padding:10px 14px;min-width:84px;background:var(--panel);border:1px solid var(--line);border-radius:12px}
.hud-cell--grow{flex:1;min-width:150px}
.hud-cell--dark{background:var(--ink);border-color:var(--ink)}
.hud-cell--dark .mono-label{color:#a8a59c}
.hud-cell--dark .hud-val{color:#fff}
.hud-val{font-family:var(--mono);font-size:20px;font-weight:700;line-height:1.15;font-variant-numeric:tabular-nums}
.hud-val i{font-style:normal;font-weight:400;font-size:13px;color:var(--muted)}
.hud-font{font-size:14px;font-weight:500;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hud-font small{font-size:11px;color:var(--tight);font-weight:400;margin-left:6px}

/* ---------- 교정지 ---------- */
.play{display:flex;flex-direction:column;gap:14px}
.sheet{position:relative;background:#fff;border:1px solid var(--line);border-radius:4px;padding:20px 22px 14px;box-shadow:0 1px 0 var(--line-2),0 28px 60px -34px rgba(229,0,125,.35)}
.crop{position:absolute;width:14px;height:14px;pointer-events:none}
.crop::before,.crop::after{content:"";position:absolute;background:var(--ink)}
.crop::before{width:14px;height:1px}
.crop::after{width:1px;height:14px}
.crop--tl{left:-7px;top:-7px}.crop--tl::before{top:7px}.crop--tl::after{left:7px}
.crop--tr{right:-7px;top:-7px}.crop--tr::before{top:7px}.crop--tr::after{right:7px}
.crop--bl{left:-7px;bottom:-7px}.crop--bl::before{bottom:7px}.crop--bl::after{left:7px}
.crop--br{right:-7px;bottom:-7px}.crop--br::before{bottom:7px}.crop--br::after{right:7px}
.sheet-head{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:40px;margin-bottom:2px}
.sheet-head .mono-label{font-size:10px}
.sheet-hint{text-align:right;letter-spacing:.04em;font-family:var(--font);font-size:12px;color:var(--sub)}
.cv{display:block;width:100%;height:220px;touch-action:none;user-select:none;-webkit-user-select:none;cursor:ew-resize;border-radius:2px}
.cv:focus-visible{outline:2px dashed var(--accent);outline-offset:4px}
.cv.is-done{cursor:default}

.verdict{display:flex;align-items:center;gap:10px;padding:4px 14px 4px 4px;margin-left:auto;background:var(--ink);color:#fff;border-radius:999px;animation:pop .45s cubic-bezier(.2,1.3,.4,1)}
.verdict-score{min-width:34px;height:34px;padding:0 4px;display:grid;place-items:center;border-radius:999px;background:var(--accent);font-family:var(--mono);font-size:15px;font-weight:800;font-variant-numeric:tabular-nums}
.verdict-text{display:flex;flex-direction:column;line-height:1.25}
.verdict-text b{font-size:13px}
.verdict-text span{font-family:var(--mono);font-size:10.5px;color:#bdb9b0;letter-spacing:.04em}

/* ---------- 조작 ---------- */
.controls{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.ctl-right{display:flex;gap:8px;margin-left:auto}
.nudge{display:flex;align-items:center;gap:4px;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:3px}
.nudge-btn{-webkit-tap-highlight-color:transparent;width:38px;height:36px;border:none;background:transparent;border-radius:999px;font-family:var(--mono);font-size:14px;cursor:pointer;touch-action:manipulation}
.nudge-btn:hover{background:var(--soft)}
.nudge-btn:active{background:var(--accent-soft);color:var(--accent)}
.nudge-sel{min-width:46px;height:36px;padding:0 10px;display:grid;place-items:center;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:16px;font-weight:700}
.seg{display:flex;background:var(--soft);border-radius:999px;padding:3px;gap:2px}
.seg-btn{height:34px;padding:0 14px;background:transparent;color:var(--sub);border:none;border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap}
.seg-btn.is-active{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin:0;font-size:12px;color:var(--sub)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.sw{display:inline-block;width:12px;height:12px;border-radius:3px}
.sw--ink{background:var(--ink)}
.sw--acc{background:var(--accent);opacity:.75}
.sw--wide{background:rgba(47,107,255,.35)}
.sw--tight{background:rgba(255,106,26,.4)}

/* ---------- 라운드 목록 ---------- */
.round-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:2px;counter-reset:rl}
.round-list li{counter-increment:rl;display:grid;grid-template-columns:24px 1fr auto;align-items:center;gap:10px;padding:7px 8px;border-radius:8px;font-size:13px;color:var(--muted)}
.round-list li::before{content:counter(rl,decimal-leading-zero);font-family:var(--mono);font-size:10.5px}
.round-list li.is-current{background:var(--accent-soft);color:var(--ink)}
.round-list li.is-done{color:var(--ink-2)}
.rl-word{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rl-score{font-family:var(--mono);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}
.rl-score.s-hi{color:var(--accent)}

/* ---------- 결과 카드 ---------- */
.result{display:flex;flex-direction:column;align-items:center;gap:16px}
.card{width:100%;max-width:560px;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 30px 70px -36px rgba(229,0,125,.45);animation:rise .5s cubic-bezier(.2,1.1,.4,1)}
.card-top{display:flex;justify-content:space-between;gap:12px;padding:14px 20px;background:var(--ink)}
.card-top .mono-label{font-size:10px;color:#bdb9b0}
.card-main{display:flex;align-items:center;gap:22px;padding:26px 24px 20px}
.card-grade{flex:0 0 auto;width:96px;height:96px;display:grid;place-items:center;border-radius:50%;background:var(--accent);color:#fff;font-family:var(--mono);font-size:50px;font-weight:800;letter-spacing:-.04em;box-shadow:inset 0 -6px 0 rgba(0,0,0,.14)}
.card-score{display:flex;flex-direction:column;gap:4px;min-width:0}
.card-num b{font-family:var(--mono);font-size:44px;font-weight:800;letter-spacing:-.04em;line-height:1}
.card-num i{font-style:normal;font-family:var(--mono);font-size:15px;color:var(--muted);margin-left:4px}
.card-title{font-size:18px;letter-spacing:-.01em}
.card-sub{font-size:12.5px;color:var(--sub);line-height:1.5}
.card-rounds{margin:0;padding:0 24px 8px;list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 18px}
.card-rounds li{display:flex;align-items:center;gap:8px;font-size:12.5px;padding:6px 0;border-top:1px solid var(--line-3);min-width:0}
.card-rounds .cr-word{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-rounds .cr-bar{flex:0 0 46px;height:5px;border-radius:9px;background:var(--track);overflow:hidden}
.card-rounds .cr-bar i{display:block;height:100%;background:var(--accent);border-radius:9px}
.card-rounds .cr-num{flex:0 0 26px;text-align:right;font-family:var(--mono);font-weight:700;font-size:12px}
.card-best{margin:0;padding:12px 24px 18px;font-size:12px;color:var(--sub)}
.result-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}

.toast{position:fixed;left:50%;bottom:28px;z-index:100;transform:translate(-50%,20px);max-width:calc(100vw - 32px);width:max-content;padding:10px 18px;border-radius:18px;background:var(--ink);color:#fff;font-size:13px;line-height:1.45;text-align:center;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

@keyframes pop{from{opacity:0;transform:scale(.7)}to{opacity:1;transform:none}}
@keyframes rise{from{opacity:0;transform:translateY(18px) scale(.97)}to{opacity:1;transform:none}}

@media (max-width:640px){
  .stage{padding:20px 16px 32px;gap:14px}
  .side{border-left:none;border-top:1px solid var(--line);padding:24px 16px 40px}
  .hud-cell{min-width:0;flex:1 1 70px;padding:8px 10px}
  .hud-cell--grow{flex:1 1 100%;order:5}
  .hud-val{font-size:17px}
  .sheet{padding:14px 12px 10px}
  .sheet-hint{display:none}
  .controls{gap:10px}
  .ctl-right{flex:1 1 100%;margin-left:0}
  .ctl-right .btn{flex:1}
  .nudge{flex:1 1 100%;justify-content:space-between}
  .seg{flex:1 1 100%}
  .seg-btn{flex:1;padding:0 6px}
  .card-main{padding:20px 18px 16px;gap:16px}
  .card-grade{width:72px;height:72px;font-size:38px}
  .card-num b{font-size:36px}
  .card-rounds{grid-template-columns:minmax(0,1fr);padding:0 18px 6px}
  .card-best{padding:10px 18px 16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 다크 모드 (인쇄는 라이트 그대로) — 교정지 캔버스 색은 --cv-* 로 app.js가 읽음 */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#151317; --surface:#1b191e; --panel:#201e24; --panel-soft:#25232a;
    --ink:#eeebf0; --ink-hover:#ffffff; --ink-2:#cbc7cf; --sub:#a39ea8; --muted:#8c8792;
    --line:#302d34; --line-2:#3b383f; --line-3:#28252c; --hover:#2b2830; --soft:#28252c; --track:#36333a;
    --accent:#ff5cad; --accent-soft:rgba(255,92,173,.16); --wide:#6f97ff; --tight:#ff8a4d;
    --cv-ink:#eeebf0; --cv-acc:#ff5cad; --cv-line:#3d3a42; --cv-guide:#6b3a57; --cv-muted:#76717c;
    --cv-wide:111,151,255; --cv-tight:255,138,77; --cv-knob:#55515b; --cv-knobOff:#3d3a42;
    --cv-ans:rgba(255,92,173,.2); --cv-even:rgba(255,255,255,.08);
  }
  :root[data-theme="dark"] .btn--solid,:root[data-theme="dark"] .btn--accent,:root[data-theme="dark"] .toast,
  :root[data-theme="dark"] .verdict-score,:root[data-theme="dark"] .card-grade{color:var(--bg)}
  :root[data-theme="dark"] .hud-cell--dark{background:#2e2b33;border-color:var(--line-2)}
  :root[data-theme="dark"] .sheet{background:var(--panel);border-color:var(--line-2);box-shadow:0 1px 0 var(--line-2),0 28px 60px -34px rgba(0,0,0,.7)}
  :root[data-theme="dark"] .crop::before,:root[data-theme="dark"] .crop::after{background:var(--muted)}
  :root[data-theme="dark"] .verdict{background:#2e2b33;color:#fff;box-shadow:0 0 0 1px var(--line-2)}
  :root[data-theme="dark"] .seg-btn.is-active{background:var(--track);box-shadow:0 1px 3px rgba(0,0,0,.35)}
  :root[data-theme="dark"] .sw--wide{background:rgba(111,151,255,.45)}
  :root[data-theme="dark"] .sw--tight{background:rgba(255,138,77,.5)}
  :root[data-theme="dark"] .card{background:var(--panel);border-color:var(--line-2);box-shadow:0 30px 70px -36px rgba(0,0,0,.8)}
  :root[data-theme="dark"] .card-top{background:#2e2b33}
}