:root{
  --bg:#fff7e8;--bg2:#ffe9c4;--card:#ffffff;--ink:#2d2a26;--sub:#6b645b;--line:#f0dcb8;
  --accent:#ff8a3d;--accent2:#ffb84d;--accent-ink:#ffffff;--chip:#fff0cf;--err:#c0392b;--errbg:#fdecea;--warnbg:#fff3cd;--ok:#1f8a3a;--okbg:#dff6e6;
  --shadow:0 6px 20px rgba(120,80,20,.12);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#1b1713;--bg2:#2a2218;--card:#26211b;--ink:#f6efe4;--sub:#b9ad9c;--line:#3d3326;
    --accent:#ff9a52;--accent2:#e0a03c;--accent-ink:#1b1713;--chip:#3a2f1f;--err:#ff8a7a;--errbg:#3a1e1b;--warnbg:#3b3317;--ok:#6fdc8c;--okbg:#1f3a27;
    --shadow:0 6px 20px rgba(0,0,0,.4);
  }
}
:root[data-theme="dark"]{
  --bg:#1b1713;--bg2:#2a2218;--card:#26211b;--ink:#f6efe4;--sub:#b9ad9c;--line:#3d3326;
  --accent:#ff9a52;--accent2:#e0a03c;--accent-ink:#1b1713;--chip:#3a2f1f;--err:#ff8a7a;--errbg:#3a1e1b;--warnbg:#3b3317;--ok:#6fdc8c;--okbg:#1f3a27;
  --shadow:0 6px 20px rgba(0,0,0,.4);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:linear-gradient(180deg,var(--bg),var(--bg2));background-color:var(--bg);color:var(--ink);
  font-family:"Noto Sans KR",Pretendard,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.5;min-height:100vh;overflow-x:hidden}
.wrap{max-width:820px;margin:0 auto;padding:12px 16px 32px}
.top{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;padding:6px 0 12px}
.top h1{margin:0;font-size:1.35rem;font-weight:900}
.sl-btns{display:flex;gap:6px;margin-left:auto}
.sl-b{border:2px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:6px 12px;font:inherit;font-size:14px;font-weight:700;cursor:pointer;min-height:40px;text-decoration:none;display:inline-flex;align-items:center}
.card{background:var(--card);border-radius:28px;padding:20px 16px 22px;box-shadow:var(--shadow);text-align:center;margin-bottom:12px}
.card.left{text-align:left}
.card h2{margin:6px 0 10px;font-size:1.25rem;font-weight:900}
.card h2 small{font-size:.8rem;color:var(--sub);font-weight:500}
.hero-emoji{font-size:3.4rem;line-height:1.1}
.sub{color:var(--sub);margin:0 0 14px}
.small{font-size:.86rem;color:var(--sub);margin:6px 0}
.hint{text-align:center;color:var(--sub);font-size:.84rem;margin:2px 0 10px}
.privacy{font-size:.86rem;color:var(--sub);margin:12px 0 0}
label{display:block;text-align:left;font-weight:700;margin:10px 0 0}
label small{font-weight:400;color:var(--sub)}
input[type=text],input:not([type]),input[type=password],input[type=number],textarea,select{font:inherit;font-size:1rem;border:2px solid var(--line);background:var(--bg);color:var(--ink);border-radius:14px;padding:10px 12px;min-height:48px;width:100%;margin-top:4px;min-width:0}
textarea{resize:vertical;line-height:1.5}
#code{font-size:1.6rem;font-weight:900;letter-spacing:.2em;text-align:center;text-transform:uppercase}
#nick{font-size:1.2rem;font-weight:700;text-align:center}
.btn{font:inherit;font-weight:700;border:0;cursor:pointer;background:var(--accent);color:var(--accent-ink);padding:12px 18px;border-radius:999px;min-height:48px;font-size:1rem;box-shadow:0 3px 0 rgba(0,0,0,.15);touch-action:manipulation;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.btn:active{transform:translateY(2px);box-shadow:none}
.btn:disabled{opacity:.55;cursor:wait}
.btn.big{font-size:1.15rem;min-height:56px;width:100%;max-width:420px;font-weight:900;margin:10px auto 0;display:flex}
.btn.small{min-height:44px;padding:8px 14px;font-size:.92rem}
.btn.ghost{background:var(--chip);color:var(--ink);box-shadow:none;border:2px solid var(--line)}
.err{background:var(--errbg);color:var(--err);border-radius:14px;padding:10px 12px;margin:12px 0 0;font-size:.92rem;text-align:left;white-space:pre-line}
.ok{background:var(--okbg);color:var(--ok);border-radius:14px;padding:10px 12px;margin:10px 0}
.chip{background:var(--accent);color:var(--accent-ink);font-weight:900;padding:5px 12px;border-radius:999px;font-size:.9rem;white-space:nowrap}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 4px}
.card:not(.left) .actions{justify-content:center}
.toggle{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.95rem;min-height:44px;cursor:pointer;margin:6px 0}
.toggle input{width:24px;height:24px;min-height:0;accent-color:var(--accent);margin:0}
[hidden]{display:none!important}
hr{border:0;border-top:2px dashed var(--line);margin:16px 0}
footer{margin-top:26px;text-align:center;color:var(--sub);font-size:.84rem}
footer p{margin:4px 0}footer a{color:var(--accent);font-weight:700}
.visitor-stats span{margin:0 6px}
.resume{background:var(--chip);border-radius:20px;padding:12px;margin-top:14px}
.resume .btn{margin:4px}

/* steps */
.who{display:flex;gap:8px;align-items:center;justify-content:space-between;margin:0 2px 8px;font-weight:700;flex-wrap:wrap}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:4px;background:var(--chip);padding:5px;border-radius:20px;margin-bottom:6px}
.steps button{font:inherit;border:0;background:transparent;color:var(--ink);border-radius:15px;padding:6px 0;min-height:56px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;touch-action:manipulation;min-width:0}
.steps button i{font-style:normal;font-size:1.25rem;line-height:1.1}
.steps button span{font-size:.7rem;font-weight:700;line-height:1.2;white-space:nowrap}
.steps button.on{background:var(--accent);color:var(--accent-ink);box-shadow:0 2px 0 rgba(0,0,0,.15)}

/* path chooser */
.paths{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width:459px){.paths{grid-template-columns:1fr}}
.pcard{position:relative;text-align:left;font:inherit;color:var(--ink);background:var(--chip);border:3px solid var(--line);border-radius:20px;padding:12px 12px 12px 14px;cursor:pointer;min-height:84px;touch-action:manipulation}
.pcard b{display:block;font-size:1.05rem}.pcard span{display:block;font-size:.84rem;color:var(--sub)}
.pcard.on{border-color:var(--accent);background:var(--card)}
.pcard[disabled]{opacity:.5;cursor:not-allowed}
.pcard .rec{position:absolute;top:-9px;right:10px;background:var(--accent);color:var(--accent-ink);font-size:.72rem;font-weight:900;padding:2px 10px;border-radius:999px}
#helper{margin-top:14px}
.skel{display:grid;gap:10px}
.skel>div{background:var(--chip);border-radius:18px;padding:10px 12px}
.skel b{display:block}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 4px}
.chip2{font:inherit;font-size:.9rem;font-weight:700;border:2px solid var(--line);background:var(--chip);color:var(--ink);border-radius:999px;padding:8px 12px;min-height:44px;cursor:pointer}
.chip2.on{border-color:var(--accent);background:var(--card)}

/* board */
.boardhead{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin:4px 0 8px}
.boardhead h2{margin:0;font-size:1.2rem}
.titlein{flex:1;min-width:150px;max-width:340px;margin:0!important;font-weight:700}
.queue{background:var(--warnbg);border-radius:14px;padding:8px 12px;font-size:.9rem;margin-bottom:8px}
.board{display:grid;gap:10px;margin-bottom:10px}
.scene{display:grid;grid-template-columns:34px minmax(0,1fr);gap:8px;background:var(--card);border-radius:22px;padding:10px;box-shadow:var(--shadow);position:relative}
.scene.drag{opacity:.85;box-shadow:0 12px 30px rgba(0,0,0,.3);z-index:5;position:relative}
.handle{touch-action:none;cursor:grab;user-select:none;-webkit-user-select:none;font-size:1.5rem;color:var(--sub);text-align:center;border-radius:12px;background:var(--chip);display:flex;align-items:center;justify-content:center;min-height:44px}
.hcol{display:flex;flex-direction:column;gap:6px}
.hcol .mv{border:0;background:var(--chip);color:var(--ink);border-radius:10px;min-height:40px;cursor:pointer;font-size:1rem;font-weight:900}
.hcol .num{text-align:center;font-weight:900;color:var(--accent)}
.sbody{display:grid;grid-template-columns:minmax(0,38%) minmax(0,1fr);gap:10px}
@media (max-width:519px){.sbody{grid-template-columns:1fr}}
.slot{position:relative;aspect-ratio:4/3;border-radius:16px;overflow:hidden;background:repeating-linear-gradient(45deg,var(--chip),var(--chip) 10px,var(--bg) 10px,var(--bg) 20px);display:flex;align-items:center;justify-content:center;color:var(--sub);font-size:.85rem;text-align:center}
.slot img{width:100%;height:100%;object-fit:cover;display:block;cursor:pointer}
.slot .busy{position:absolute;inset:0;background:rgba(255,255,255,.82);color:#2d2a26;display:flex;align-items:center;justify-content:center;font-weight:700;padding:8px;text-align:center;font-size:.88rem}
.vers{display:flex;gap:4px;margin-top:4px;flex-wrap:wrap}
.vers button{font:inherit;font-size:.74rem;font-weight:700;border:2px solid var(--line);background:var(--chip);color:var(--ink);border-radius:999px;padding:2px 8px;min-height:30px;cursor:pointer}
.vers button.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.stext textarea{margin-top:0;min-height:96px;font-size:1.02rem}
.sbtns{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.sbtns button{font:inherit;font-size:.82rem;font-weight:700;border:2px solid var(--line);background:var(--chip);color:var(--ink);border-radius:999px;padding:6px 10px;min-height:44px;cursor:pointer;touch-action:manipulation}
.sbtns button.ai{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.sbtns button:disabled{opacity:.5}
.hintin{margin-top:6px!important;min-height:40px!important;font-size:.88rem!important}
.board.pics .stext textarea{min-height:48px;font-size:.9rem}
.board.pics .sbody{grid-template-columns:1fr}
.board.pics .hintin{display:none}
.toast{position:fixed;left:50%;top:14px;transform:translateX(-50%);z-index:90;background:#2d2a26;color:#fff;font-weight:700;padding:10px 16px;border-radius:18px;max-width:92vw;text-align:center;box-shadow:var(--shadow);font-size:.92rem}
.toast button{margin-left:8px;font:inherit;font-weight:900;border:0;background:var(--accent2);border-radius:999px;padding:4px 12px;cursor:pointer;min-height:32px}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:80;display:flex;align-items:center;justify-content:center;padding:12px}
.mbox{background:var(--card);color:var(--ink);border-radius:24px;padding:16px;width:100%;max-width:640px;max-height:94vh;overflow:auto;position:relative}
.mbox h3{margin:0 0 8px}
.mx{position:absolute;top:8px;right:10px;border:0;background:none;font-size:22px;color:var(--sub);cursor:pointer;min-width:44px;min-height:44px}
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}
.cmp figure{margin:0;text-align:center;font-size:.85rem}
.cmp img,.cmp .ph{width:100%;aspect-ratio:4/3;object-fit:contain;background:#eee;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#555}
.row{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}
.edcv{width:100%;aspect-ratio:4/3;border-radius:14px;touch-action:none;background:#ddd;display:block}
.stk{display:flex;flex-wrap:wrap;gap:4px;margin:6px 0}
.stk button{font-size:1.6rem;border:0;background:var(--chip);border-radius:12px;min-width:46px;min-height:46px;cursor:pointer}

/* player */
.pl{position:relative;aspect-ratio:var(--ar,16 / 9);max-height:78vh;margin:0 auto;background:#111;border-radius:20px;overflow:hidden;width:100%}
.pl .lay{position:absolute;inset:0;opacity:0;transition:opacity .8s}
.pl .bg,.pl .fg{position:absolute;inset:0;width:100%;height:100%}
.pl .bg{object-fit:cover;filter:blur(22px) brightness(.7);transform:scale(1.1)}
.pl .fg{object-fit:contain}
.pl .lay.on{opacity:1}
.pl .cap{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff;font-size:clamp(.95rem,3.4vw,1.5rem);font-weight:700;text-align:center;min-height:3.2em;display:flex;align-items:flex-end;justify-content:center}
.pl .ttl{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:clamp(1.4rem,6vw,2.6rem);background:linear-gradient(135deg,#ff8a3d,#7b4bd1);text-align:center;padding:16px}
.pctl{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:10px;align-items:center}
@keyframes kb{from{transform:scale(1)}to{transform:scale(1.12) translate(-1.5%,-1%)}}
.kb{animation:kb 6s ease-out forwards}

/* flash cards */
.fgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px;text-align:center}
.fc{perspective:900px;aspect-ratio:var(--ar,4 / 3);cursor:pointer;border:0;background:none;padding:0;font:inherit;color:inherit}
.fc>div{position:relative;width:100%;height:100%;transition:transform .5s;transform-style:preserve-3d}
.fc.flip>div{transform:rotateY(180deg)}
.fc .f,.fc .b{position:absolute;inset:0;backface-visibility:hidden;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.fc .f .pic{width:100%;height:100%}
.fc .b{transform:rotateY(180deg);background:var(--chip);display:flex;align-items:center;justify-content:center;padding:12px;font-weight:700;font-size:1.05rem;overflow:auto}
.prog{position:relative;height:26px;background:var(--chip);border-radius:13px;overflow:hidden;margin:10px 0}
.prog i{display:block;height:100%;width:0;background:var(--accent2);transition:width .2s}
.prog b{position:absolute;inset:0;text-align:center;font-size:.8rem;line-height:26px}
video.res{width:100%;border-radius:16px;margin-top:8px;background:#000}

/* print */
#printArea{display:none}
@media print{
  body.printing>.wrap{display:none!important}
  body.printing #printArea{display:block}
  body{background:#fff!important}
  @page{size:A4;margin:0}
  .pg{width:210mm;height:297mm;page-break-after:always;break-after:page;overflow:hidden;color:#000;background:#fff;position:relative;padding:16mm;box-sizing:border-box;font-family:"Noto Sans KR",sans-serif}
  .pg.cover{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
  .pg.cover h1{font-size:34pt;margin:0 0 10mm}
  .pg.cover img{width:150mm;height:112mm;object-fit:cover;border-radius:8mm}
  .pg.cover p{font-size:16pt;margin-top:10mm}
  .pg.scn img{width:100%;height:150mm;object-fit:contain;display:block;border-radius:6mm}
  .pg.scn p{font-size:20pt;line-height:1.6;margin:10mm 0 0;text-align:center}
  .pg.scn .n{position:absolute;bottom:10mm;left:0;right:0;text-align:center;font-size:11pt;color:#777}
  .cards{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:6mm}
  .cards .c{border:1px dashed #999;border-radius:5mm;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:4mm;text-align:center}
  .cards .c img{width:100%;height:100%;object-fit:contain}
  .cards .c.t{font-size:18pt;font-weight:700;line-height:1.5}
}
@media (prefers-reduced-motion:reduce){.kb{animation:none}.fc>div{transition:none}}

/* key guide */
.kg-status{background:var(--chip);border-radius:14px;padding:10px 14px;font-weight:700;margin-bottom:10px}
.kg-status.ok{background:var(--okbg);color:var(--ok)}
details.kg{background:var(--chip);border-radius:20px;padding:10px 14px;margin:8px 0}
details.kg summary{font-weight:900;font-size:1.05rem;cursor:pointer;min-height:44px;display:flex;align-items:center}
.kg-steps{list-style:none;margin:8px 0;padding:0;display:grid;gap:10px}
.kg-steps>li{display:flex;gap:10px;background:var(--card);border-radius:16px;padding:10px}
.kg-steps>li>span{font-size:1.5rem;font-weight:900;color:var(--accent)}
.kg-steps a,.radio a{color:var(--accent);font-weight:700}
.mini{margin:6px 0 0;padding-left:20px;font-size:.92rem}.mini li{margin:2px 0}
.tip{background:var(--warnbg);border-radius:14px;padding:10px 12px;font-size:.92rem}
.kg-h{margin:16px 0 4px;font-size:1.02rem}
.radio{display:flex;gap:10px;align-items:flex-start;font-weight:400;background:var(--chip);border-radius:14px;padding:10px 12px;margin:6px 0;cursor:pointer}
.radio input{width:22px;height:22px;min-height:0;margin:2px 0 0;accent-color:var(--accent);flex:none}

/* picture fit (never stretched) */
.slot{aspect-ratio:var(--ar,4 / 3)}
.pic{position:relative;width:100%;height:100%;overflow:hidden}
.pic .pfg{position:relative;display:block;width:100%;height:100%}
.pic.fit-cover .pfg{object-fit:cover}.pic.fit-cover .pbg{display:none}
.pic.fit-contain .pfg{object-fit:contain}
.pic.fit-contain .pbg{display:block;position:absolute;inset:-8%;width:116%;height:116%;object-fit:cover;filter:blur(18px) brightness(.92)}
.slot .pic img{cursor:pointer}
.fitbtn{position:absolute;left:6px;bottom:6px;font:inherit;font-size:.74rem;font-weight:700;border:0;border-radius:999px;background:rgba(0,0,0,.62);color:#fff;padding:4px 10px;min-height:32px;cursor:pointer}
.rbar{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 10px}
.rbtn{font:inherit;color:var(--ink);background:var(--chip);border:3px solid var(--line);border-radius:16px;padding:6px 10px;min-height:56px;cursor:pointer;display:flex;align-items:center;gap:8px;font-size:.82rem;font-weight:700;touch-action:manipulation}
.rbtn.on{border-color:var(--accent);background:var(--card)}
.rbtn i{display:block;border:2px solid var(--sub);border-radius:3px;background:var(--bg);flex:none}
.rbtn small{display:block;font-weight:400;color:var(--sub)}
/* drawing */
.drawmodal .mbox{max-width:760px;padding:12px}
.dwrap{background:repeating-conic-gradient(#e7e1d6 0 25%,#f7f3ea 0 50%) 0 0/20px 20px;border-radius:12px;display:flex;justify-content:center}
.dcv{max-width:100%;max-height:62vh;width:auto;height:auto;touch-action:none;border-radius:12px;display:block;cursor:crosshair}
.dtools{position:sticky;bottom:-12px;background:var(--card);padding:8px 0 2px;display:grid;gap:6px}
.drow{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.drow button{font-size:1.25rem;min-width:44px;min-height:44px;border:2px solid var(--line);background:var(--chip);border-radius:12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;touch-action:manipulation;color:var(--ink)}
.drow button.on{border-color:var(--accent);background:var(--card);box-shadow:0 0 0 2px var(--accent)}
.drow button.btn{font-size:1rem;min-width:0}
.drow button i{display:block;background:var(--ink);border-radius:50%}
.sw{min-width:36px!important;min-height:36px!important;border-radius:50%!important}
.sw.bg{border-radius:8px!important}
.vbox{display:flex;gap:8px;flex-wrap:wrap;align-items:center;background:var(--chip);border-radius:16px;padding:8px 10px;margin:8px 0}
.vbox select{width:auto;min-height:44px;margin:0;flex:1;min-width:110px}
.fc .b .say{position:absolute;right:8px;bottom:8px;font-size:1.2rem;border:0;background:var(--card);border-radius:50%;width:44px;height:44px;cursor:pointer}

.linkbtn{font:inherit;background:none;border:0;color:var(--accent);font-weight:700;text-decoration:underline;cursor:pointer;min-height:44px;padding:0 4px}