:root{
  --ground:#fbfbfc;--surface:#fff;--fill-subtle:#f6f6f7;--fill:#efeff1;--border:#e4e4e7;--border-strong:#d1d1d6;
  --text:#18181b;--text-2:#5f5f67;--accent:#2f54c8;--accent-soft:rgba(47,84,200,.12);--accent-tint:#dfe6fb;
  --green:#1d7347;--green-bg:#ecf6f0;--green-border:#bfe0cc;--red:#bf3a31;--red-bg:#fcefee;--red-border:#f1c5c1;
  --amber:#8a5a00;--amber-bg:#fdf6e7;--amber-border:#ecd59f;
  --host:#e3e4e8;--host-line:#b9bbc3;--soil:#d9cdb8;--water:#d6e6f5;--water-line:#9dbbd9;--grass:#7d9a6a;
  --bug:#7b3a22;--bug-fed:#a5583c;--bug-line:#3f1b0e;
  --font:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Noto Sans KR',sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--ground);color:var(--text);font-family:var(--font)}
.wrap{max-width:1240px;margin:0 auto;padding:20px 16px 40px}
/* 머리: 한 줄 = 목록으로 돌아가기 · 제목 · 검색 */
.top{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:16px}
.nav-btn{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 14px 0 10px;border:1px solid var(--border-strong);border-radius:999px;background:var(--surface);color:var(--text);font:inherit;font-size:14px;font-weight:600;text-decoration:none;cursor:pointer;white-space:nowrap}
.nav-btn:hover{background:var(--fill)}
.nav-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.nav-btn kbd{font:inherit;font-size:12px;font-weight:500;color:var(--text-2);border:1px solid var(--border);border-radius:4px;padding:0 5px;margin-left:2px}
@media (hover:none){.nav-btn kbd{display:none}}
/* 검색 창 */
.search{width:min(640px,calc(100vw - 32px));max-height:min(78vh,720px);margin:10vh auto auto;padding:0;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--text);box-shadow:0 16px 48px rgba(17,17,20,.18);overflow:hidden;flex-direction:column}
.search[open]{display:flex}
.search::backdrop{background:rgba(24,24,27,.38)}
.search-bar{display:flex;align-items:center;gap:8px;padding:8px 8px 8px 14px;border-bottom:1px solid var(--border)}
.search-bar svg{flex:none;width:20px;height:20px;fill:none;stroke:var(--text-2);stroke-width:2;stroke-linecap:round}
.search-bar input{flex:1;min-width:0;min-height:44px;border:0;outline:0;background:transparent;font:inherit;font-size:17px;color:var(--text)}
.search-bar input::-webkit-search-cancel-button{display:none}
.search-x{flex:none;min-height:40px;padding:0 12px;border:0;border-radius:8px;background:var(--fill-subtle);font:inherit;font-size:14px;font-weight:600;color:var(--text);cursor:pointer}
.search-x:hover{background:var(--fill)}
.hits{overflow-y:auto;overscroll-behavior:contain;padding:6px 8px 12px}
.hits-h{margin:10px 6px 4px;font-size:12px;font-weight:650;color:var(--text-2)}
.hits-h span{font-weight:500;margin-left:4px}
.hit{display:flex;flex-direction:column;gap:2px;padding:10px 10px;min-height:48px;border-radius:8px;color:var(--text);text-decoration:none}
.hit:hover,.hit.on{background:var(--accent-soft)}
.hit[data-cur] b{color:var(--accent)}
.hit b{font-size:15px;font-weight:600;line-height:1.45}
.hit-m{font-size:12px;color:var(--text-2)}
.hit-x{font-size:13px;line-height:1.55;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hit mark{background:var(--accent-tint);color:inherit;border-radius:2px;padding:0 1px}
.hits-none{margin:18px 8px;font-size:14px;color:var(--text-2);line-height:1.6}
header h1{font-size:22px;font-weight:650;letter-spacing:-.022em;line-height:1.35;margin:0}
header p{margin:4px 0 0;font-size:13px;color:var(--text-2);line-height:1.6}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:16px;align-items:start;margin-top:16px}
.layout>*{min-width:0}
/* 사이트 안(iframe)에서는 바깥 여백을 페이지가 맡는다 */
.embed .wrap{padding:0}
.embed body,.embed{background:transparent}
.stage{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.stage svg.scene{display:block;width:100%;height:auto}
.view{position:relative}
.stage.pan .scroller{overflow-x:auto;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}
.stage.pan svg.scene{max-width:none}
.view-bar{display:flex;align-items:center;gap:8px;padding:6px 8px 6px 12px;border-top:1px solid var(--border)}
.view-bar[hidden]{display:none}
.pan-hint{flex:1;margin:0;font-size:12px;line-height:1.5;color:var(--text-2)}
.fit{flex:none;min-height:40px;padding:0 14px;border:1px solid var(--border-strong);border-radius:999px;background:#fff;color:var(--text);font:inherit;font-size:13px;font-weight:600;cursor:pointer}
.fit:hover{background:var(--fill)}
.stage.ov .view,.stage.ov .view-bar{display:none}
/* 그림 아래 설명 줄: 지금 동작의 설명과 동작 넘기기(‹ ›) */
.say{display:flex;gap:8px;align-items:stretch;padding:8px;border-top:1px solid var(--border);background:var(--fill-subtle)}
.say-b{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:3px;padding:2px 4px;min-height:3.4em}
.say p{margin:0;font-size:16px;line-height:1.55;font-weight:500;overflow-wrap:anywhere}
.say-n{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-2);font-variant-numeric:tabular-nums}
.pips{display:flex;gap:3px}
.pips:empty{display:none}
.pips i{width:6px;height:6px;border-radius:50%;background:var(--border-strong)}
.pips i.done{background:var(--accent);opacity:.45}
.pips i.on{background:var(--accent)}
.beat{flex:none;width:48px;min-height:48px;border:1px solid var(--border-strong);border-radius:8px;background:#fff;color:var(--text);font:inherit;font-size:26px;line-height:1;cursor:pointer}
.beat:hover:not(:disabled){background:var(--fill)}
.beat:disabled{opacity:.35;cursor:default}
.stage.ov .say{display:none}
.progress{position:absolute;left:0;top:0;height:3px;background:var(--accent);width:0;z-index:2}
.hud{display:flex;justify-content:space-between;align-items:flex-start;gap:8px;padding:12px 12px 0;position:sticky;left:0}
.hud[hidden]{display:none}
.counter,.season{font-size:14px;font-weight:600;background:#fff;border:1px solid var(--border);border-radius:999px;padding:6px 12px;display:flex;align-items:center;gap:8px}
.counter:empty,.season:empty{display:none}
.counter i{width:12px;height:12px;border-radius:50%;border:2px solid var(--border-strong);background:#fff;transition:background .3s,border-color .3s}
.counter i.used{background:var(--accent);border-color:var(--accent)}
.season{margin-left:auto}
.legend-text{margin:0;padding:8px 12px;font-size:13px;line-height:1.55;color:var(--text-2);border-top:1px solid var(--border);background:var(--fill-subtle)}
.legend-text:empty{display:none}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px;position:sticky;top:12px}
.tabs-wrap{display:flex;align-items:stretch;background:var(--fill-subtle);border-radius:8px;margin-bottom:12px}
.tabs{flex:1;min-width:0;display:flex;gap:4px;padding:3px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab-arrow{display:none;flex:none;width:36px;border:0;background:transparent;border-radius:8px;font:inherit;font-size:22px;line-height:1;color:var(--text);cursor:pointer}
.tabs-wrap.over .tab-arrow{display:block}
.tab-arrow:hover:not(:disabled){background:var(--fill)}
.tab-arrow:disabled{color:var(--border-strong);cursor:default}
.tabs button{flex:1 0 auto;border:0;background:transparent;border-radius:6px;min-height:40px;padding:0 10px;font:inherit;font-size:14px;font-weight:550;color:var(--text-2);cursor:pointer;white-space:nowrap}
.tabs button[aria-selected=true]{background:var(--surface);color:var(--text);box-shadow:0 1px 2px rgba(17,17,20,.08)}
.count{font-size:13px;color:var(--text-2);margin:0}
.panel h2{font-size:17px;font-weight:650;letter-spacing:-.014em;line-height:1.4;margin:2px 0 6px}
.caption{font-size:15px;line-height:1.7;margin:0 0 12px;min-height:5.1em;overflow-wrap:anywhere}
.key{font-weight:650;background:linear-gradient(transparent 58%,rgba(47,84,200,.18) 58%)}
.controls{display:grid;grid-template-columns:auto 1fr 1fr;gap:6px;margin-bottom:10px}
.controls button:disabled{opacity:.4;cursor:default}
.controls button:disabled:hover{background:#fff}
.controls button,.steps button{font:inherit}
.controls button{min-height:44px;padding:0 12px;border:1px solid var(--border-strong);border-radius:6px;background:#fff;color:var(--text);font-size:14px;cursor:pointer}
.controls button:hover{background:var(--fill)}
.controls .play{background:var(--text);border-color:var(--text);color:#fff;min-width:84px}
.controls .play:hover{background:#2c2c31}
button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
ol.steps{list-style:none;margin:0;padding:0;border-top:1px solid var(--border)}
ol.steps button{width:100%;display:flex;gap:10px;align-items:flex-start;text-align:left;border:0;border-bottom:1px solid var(--fill);background:transparent;padding:10px 4px;min-height:44px;font-size:14px;line-height:1.5;color:var(--text);cursor:pointer}
ol.steps .n{flex:none;min-width:22px;height:22px;border-radius:11px;background:var(--fill);color:var(--text-2);font-size:12px;display:inline-grid;place-items:center;margin-top:1px;padding:0 4px}
ol.steps button[aria-current=step]{background:var(--accent-soft)}
ol.steps button[aria-current=step] .n{background:var(--accent);color:#fff}
.source{font-size:12px;color:var(--text-2);line-height:1.6;margin:12px 0 0;overflow-wrap:anywhere}

/* ── 장면 SVG 공통 클래스 ── */
.scene text{font-family:var(--font)}
.t{font-size:22px;fill:var(--text)}
.t2{font-size:20px;fill:var(--text-2)}
.tb{font-size:24px;font-weight:650;fill:var(--text)}
.ts{font-size:18px;fill:var(--text-2)}
.mid{text-anchor:middle}.end{text-anchor:end}
.host path,.host ellipse,.host circle,.host rect,.host polygon{fill:var(--host);stroke:var(--host-line);stroke-width:2}
.host .eye{fill:var(--host-line);stroke:none}
.host-label{font-size:28px;font-weight:600;fill:var(--text-2);text-anchor:middle}
.box{fill:#fff;stroke:var(--border-strong);stroke-width:2}
.box-soft{fill:var(--fill-subtle);stroke:var(--border);stroke-width:2}
.line{fill:none;stroke:#868e96;stroke-width:2.5}
.arrow{fill:none;stroke:#495057;stroke-width:3;marker-end:url(#ah)}
.arrow-red{fill:none;stroke:var(--red);stroke-width:3;marker-end:url(#ahr)}
.dash{stroke-dasharray:8 6}
.soil{fill:var(--soil)}
.water{fill:var(--water);stroke:var(--water-line);stroke-width:2}
.grass{fill:none;stroke:var(--grass);stroke-width:3;stroke-linecap:round}
/* 강조 · 등장 · 퇴장 */
.hl :is(path,ellipse,circle,rect,polygon,line,polyline):not(.eye):not(.keep),.hl:is(path,ellipse,circle,rect,polygon,line,polyline){stroke:var(--accent)!important}
.hl :is(rect,ellipse,circle,path,polygon).box,.hl.box,.hl :is(rect,ellipse,circle,polygon).fillable,.host.hl :is(path,ellipse,circle,rect,polygon):not(.eye){fill:var(--accent-tint)!important}
.hl text,text.hl{fill:var(--accent)!important}
.hl .eye{fill:var(--accent)}
.bad :is(path,ellipse,circle,rect,polygon,line),.bad:is(path,rect,line){stroke:var(--red)!important}
.bad :is(rect,ellipse).box,.bad.box{fill:var(--red-bg)!important}
.bad text,text.bad{fill:var(--red)!important}
.good :is(path,ellipse,circle,rect,polygon,line),.good:is(path,rect,line){stroke:var(--green)!important}
.good :is(rect,ellipse).box,.good.box{fill:var(--green-bg)!important}
.good text,text.good{fill:var(--green)!important}
.scene [data-k]{transition:opacity .45s,transform .7s cubic-bezier(.45,0,.25,1)}
.pre{opacity:0}
.pre.shown{opacity:1}
.dimmed,.pre.shown.dimmed{opacity:.25}
.gone{opacity:0!important}
.strike line.s{stroke:var(--red);stroke-width:4}
.actor{transition:transform 1s cubic-bezier(.45,0,.25,1),opacity .4s}
.actor.instant{transition:none}
.actor-tag rect{fill:var(--text)}
.actor-tag text{fill:#fff;font-size:20px;font-weight:600;text-anchor:middle}
.badge rect{fill:var(--amber-bg);stroke:var(--amber-border)}
.badge text{fill:var(--amber);font-size:22px;font-weight:650;text-anchor:middle}
.badge{animation:pop .35s ease-out}
.ghost{fill:none;stroke:var(--bug);stroke-width:2;stroke-dasharray:5 4;opacity:.7;animation:fade 2.4s forwards}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes fade{0%{opacity:.8}100%{opacity:.18}}
@keyframes flow{to{stroke-dashoffset:-28}}
.flowing{stroke-dasharray:10 4;animation:flow 1s linear infinite}

/* ── HTML 슬라이드(함정 등) ── */
.overlay{background:var(--surface);padding:22px;display:none}
.overlay.show{display:block}
.stage.ov svg.scene,.stage.ov .hud,.stage.ov .legend-text{display:none}
.overlay h3{font-size:17px;font-weight:650;margin:0 0 10px}
.overlay h3:not(:first-child){margin-top:18px}
.overlay p{font-size:15px;line-height:1.7;margin:0 0 8px}
.overlay .tip{font-size:13px;color:var(--text-2)}
.overlay table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.55;margin-bottom:12px}
.overlay th,.overlay td{border-bottom:1px solid var(--border);padding:8px 10px;text-align:left;vertical-align:top}
.overlay th{font-weight:600;color:var(--text-2);background:var(--fill-subtle)}
.trap{display:grid;gap:8px}
.trap>div,.wrong,.right{border-radius:8px;padding:10px 12px;font-size:14px;line-height:1.6}
.wrong{background:var(--red-bg);color:var(--red)}
.wrong s{text-decoration-thickness:2px}
.right{background:var(--green-bg);color:var(--green)}
.rv{opacity:0;transform:translateY(6px);transition:opacity .45s,transform .45s}
.rv.in{opacity:1;transform:none}

/* 한 열 화면: 그림 바로 아래에 지금 단계 설명과 재생 버튼이 오고, 장 탭·단계 목록은 그 뒤에 둔다 */
@media (max-width:899px){
  .layout{grid-template-columns:1fr;gap:10px}
  .panel{position:static;display:flex;flex-direction:column}
  .panel .tabs-wrap{order:1;margin:2px 0 8px}
  .panel .steps,.panel .source{order:2}
  .caption{min-height:0}
}
@media (max-width:640px){
  .wrap{padding:16px 16px 32px}
  header h1{font-size:19px}
  .top{gap:10px}
  /* 좁은 화면: 버튼은 아이콘만(글자는 화면 읽기용으로 남김) */
  .nav-btn{width:44px;min-height:44px;padding:0;justify-content:center}
  .nav-btn kbd{display:none}
  .nav-btn span{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
  .search{width:calc(100vw - 16px);max-height:calc(100dvh - 16px);margin:8px auto auto}
  .overlay{padding:14px}
  .overlay table{font-size:13px}
  .overlay thead{display:none}
  .overlay tbody tr{display:block;border-bottom:1px solid var(--border);padding:8px 0}
  .overlay tbody td{display:block;border:0;padding:2px 0}
  .overlay tbody td[data-l]:not(:first-child)::before{content:attr(data-l) ': ';color:var(--text-2);font-weight:500}
  .overlay tbody td:first-child{font-weight:650}
}
@media (prefers-reduced-motion:reduce){
  .actor,.scene [data-k],.rv{transition:none}
  .badge,.ghost,.flowing{animation:none}
}

/* 기출 배지(step.exam) */
.exam{display:inline-block;margin-left:8px;font-size:12px;font-weight:650;line-height:1.4;border-radius:4px;padding:2px 8px;background:#fdf6e7;color:#6b4600;border:1px solid #ecd59f;vertical-align:1px;white-space:nowrap}
.steps button .exam{margin-left:auto;flex:none}
/* 보강 배지(step.bg): 자료에 없는 배경 단계 */
.exam.bg{background:#eef2fb;color:#233f94;border-color:#c5d1f0}