: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:#c6f432; --accent-ink:#4b6b00; --art:#17181c; --art-2:#23252b; --violet:#a78bfa;
  --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:disabled{opacity:.4;cursor:default}
.btn:disabled:hover{background:transparent}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.btn--accent{background:var(--ink);color:var(--accent);border:none;font-weight:700}
.btn--accent:hover{background:var(--ink-hover)}
.btn--lg{height:42px;padding:0 20px;font-size:14px}
.btn[aria-pressed="true"]{background:#efe9ff;border-color:var(--violet);color:#5b3fd6}
:focus-visible{outline:2px solid #7c5cff;outline-offset:2px}
@media (max-width:640px){ .topbar{padding:14px 16px} }

.star-total{font-family:var(--mono);font-size:13px;font-weight:700;padding:6px 12px;border-radius:999px;background:var(--ink);color:var(--accent)}

/* ---------- 레이아웃 ---------- */
.bz{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;align-items:center;gap:14px;padding:28px 28px 44px}
.stage > *{width:100%;max-width:820px}
.side{flex:1 1 290px;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:12.5px;color:var(--ink-2);line-height:1.55}
.rules li{display:grid;grid-template-columns:96px minmax(0,1fr);gap:8px}
.rules b{font-size:12px;font-weight:700;color:var(--ink)}
.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)}

/* ---------- 레벨 헤더 ---------- */
.lv-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.lv-nav{width:36px;height:36px;border-radius:50%;border:1px solid var(--line-2);background:var(--panel);font-size:18px;line-height:1;cursor:pointer}
.lv-nav:hover{background:var(--hover)}
.lv-nav:disabled{opacity:.3;cursor:default}
.lv-title{display:flex;flex-direction:column;gap:2px;min-width:0;flex:0 1 auto;padding:0 4px}
.lv-name{margin:0;font-size:22px;font-weight:700;letter-spacing:-.02em;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lv-stats{display:flex;gap:8px;margin-left:auto}
.stat{display:flex;flex-direction:column;gap:2px;padding:8px 14px;border-radius:12px;background:var(--panel);border:1px solid var(--line);min-width:84px}
.stat b{font-family:var(--mono);font-size:18px;font-weight:800;font-variant-numeric:tabular-nums}
.stat b i{font-style:normal;font-weight:400;font-size:12px;color:var(--muted);margin-left:3px}
.stat--dark{background:var(--ink);border-color:var(--ink)}
.stat--dark .mono-label{color:#a8a59c}
.stat--dark b{color:var(--accent)}
.stat.is-over b{color:#d4380d}

/* ---------- 아트보드 ---------- */
.board{position:relative;border-radius:20px;background:var(--art);overflow:hidden;box-shadow:0 1px 0 #000,0 34px 70px -38px rgba(80,110,0,.55)}
.cv{display:block;width:100%;aspect-ratio:4/3;touch-action:none;user-select:none;-webkit-user-select:none;cursor:crosshair}
.cv:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--violet)}
.hint{position:absolute;left:14px;right:14px;bottom:12px;margin:0;display:flex;justify-content:center;pointer-events:none}
.hint span{max-width:100%;padding:7px 14px;border-radius:999px;background:rgba(10,10,12,.72);color:#e9ecef;font-size:12.5px;line-height:1.4;text-align:center;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.hint span b{color:var(--accent);font-weight:700}

/* ---------- 툴바 ---------- */
.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tool-group{display:flex;gap:6px;flex-wrap:wrap}
.tool-group--right{margin-left:auto}
.tool{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border:1px solid var(--line-2);border-radius:10px;background:var(--panel);font-size:12.5px;cursor:pointer;-webkit-tap-highlight-color:transparent}
.tool:hover{background:var(--hover)}
.tool:disabled{opacity:.4;cursor:default}
.tool:disabled:hover{background:var(--panel)}
.tool-ic{font-family:var(--mono);font-size:13px;color:var(--sub)}
.tool[aria-pressed="true"]{background:#efe9ff;border-color:var(--violet);color:#5b3fd6}
.tool[aria-pressed="true"] .tool-ic{color:#5b3fd6}

/* ---------- 점수 패널 ---------- */
.score-panel{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:14px 16px;border-radius:16px;background:var(--ink);color:#fff;animation:rise .45s cubic-bezier(.2,1.1,.4,1)}
.sp-main{display:flex;align-items:center;gap:14px;min-width:0}
.sp-score{flex:0 0 auto;min-width:72px;height:72px;display:grid;place-items:center;border-radius:50%;background:var(--accent);color:var(--ink);font-family:var(--mono);font-size:28px;font-weight:800;letter-spacing:-.04em}
.sp-info{display:flex;flex-direction:column;gap:3px;min-width:0}
.sp-stars{font-size:20px;letter-spacing:.12em;color:var(--accent)}
.sp-stars i{font-style:normal;color:#4a4d55}
.sp-stars.is-pop{animation:pop .5s cubic-bezier(.2,1.4,.4,1)}
.sp-line{font-family:var(--mono);font-size:12px;color:#d6d9de}
.sp-note{font-size:12px;color:#a8a59c}
.sp-actions{display:flex;gap:8px;margin-left:auto;flex-wrap:wrap}
.score-panel .btn{border-color:#3a3c42;color:#fff}
.score-panel .btn:hover{background:#2a2c31}
.score-panel .btn[aria-pressed="true"]{background:#2d2840;border-color:var(--violet);color:#d9ccff}
.score-panel .btn--solid{background:var(--accent);color:var(--ink)}
.score-panel .btn--solid:hover{background:var(--accent);filter:brightness(1.06)}

/* ---------- 레벨 목록 ---------- */
.levels{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
.lv-btn{width:100%;display:flex;align-items:center;gap:8px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:var(--panel);text-align:left;cursor:pointer;min-width:0}
.lv-btn:hover{border-color:var(--ink)}
.lv-btn.is-current{background:var(--ink);border-color:var(--ink);color:#fff}
.lv-num{font-family:var(--mono);font-size:10.5px;color:var(--muted);flex:0 0 auto}
.lv-btn.is-current .lv-num{color:var(--accent)}
.lv-label{flex:1;min-width:0;font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lv-star{font-size:10px;letter-spacing:.05em;color:#c9c6bd;flex:0 0 auto}
.lv-star b{color:#7fa300;font-weight:400}
.lv-btn.is-current .lv-star{color:#55575e}
.lv-btn.is-current .lv-star b{color:var(--accent)}

.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(.5)}to{opacity:1;transform:none}}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

@media (max-width:640px){
  .stage{padding:18px 16px 32px;gap:12px}
  .side{border-left:none;border-top:1px solid var(--line);padding:24px 16px 40px}
  .lv-name{font-size:18px}
  .lv-stats{flex:1 1 100%;margin-left:0}
  .stat{flex:1;min-width:0;padding:6px 12px}
  .board{border-radius:14px}
  .hint{left:8px;right:8px;bottom:8px}
  .hint span{font-size:11.5px;padding:5px 10px}
  .tool{padding:0 9px;font-size:12px}
  .tool-group{flex:1 1 100%}
  .tool-group .tool{flex:1;justify-content:center}
  .tool-group--right{margin-left:0}
  .tool-group--right .btn{flex:1;padding:0 8px}
  .sp-actions{flex:1 1 100%;margin-left:0}
  .sp-actions .btn{flex:1;padding:0 8px}
  .sp-score{min-width:60px;height:60px;font-size:23px}
}
@media (max-width:380px){
  .tool .tool-ic{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}

/* 다크 모드 (인쇄는 라이트 그대로) — 아트보드는 원래 어두워 그대로 */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#121315; --surface:#17181b; --panel:#1c1d21; --panel-soft:#212226;
    --ink:#eaebee; --ink-hover:#ffffff; --ink-2:#c5c7cc; --sub:#9c9ea6; --muted:#878a92;
    --line:#2a2c31; --line-2:#35373d; --line-3:#232429; --hover:#26282d; --soft:#232429; --track:#303237;
    --accent-ink:#c6f432;
  }
  :root[data-theme="dark"] :focus-visible{outline-color:#a78bfa}
  :root[data-theme="dark"] .btn--solid,:root[data-theme="dark"] .toast{color:var(--bg)}
  :root[data-theme="dark"] .btn--accent,:root[data-theme="dark"] .star-total{background:var(--art-2);box-shadow:0 0 0 1px var(--line-2)}
  :root[data-theme="dark"] .btn--accent:hover{background:#2e3037}
  :root[data-theme="dark"] .btn[aria-pressed="true"],:root[data-theme="dark"] .tool[aria-pressed="true"]{background:rgba(167,139,250,.16);border-color:var(--violet);color:#cdbdff}
  :root[data-theme="dark"] .tool[aria-pressed="true"] .tool-ic{color:#cdbdff}
  :root[data-theme="dark"] .stat--dark{background:var(--art-2);border-color:var(--line-2)}
  :root[data-theme="dark"] .stat.is-over b{color:#ff7a50}
  :root[data-theme="dark"] .board{box-shadow:0 0 0 1px var(--line-2),0 34px 70px -38px rgba(0,0,0,.8)}
  :root[data-theme="dark"] .score-panel{background:var(--art-2);box-shadow:0 0 0 1px var(--line-2)}
  :root[data-theme="dark"] .sp-stars i{color:#73767f}
  :root[data-theme="dark"] .sp-score,:root[data-theme="dark"] .score-panel .btn--solid{color:#17181c}
  :root[data-theme="dark"] .lv-btn.is-current{background:var(--art-2);border-color:var(--accent);color:#fff}
  :root[data-theme="dark"] .lv-star{color:#72747d}
  :root[data-theme="dark"] .lv-btn.is-current .lv-star{color:#72747d}
  :root[data-theme="dark"] .lv-star b{color:#a9d42a}
}