:root{
  --bg:#f4f6f9; --card:#fff; --line:#e5e8ee; --line2:#d3d8e0; --text:#191f28; --sub:#5b6573; --mute:#8b95a1;
  --pri:#2457f5; --pri-weak:#eaf0ff; --ok:#12a150; --ok-weak:#e7f7ee; --warn:#e8870e; --warn-weak:#fff4e5; --bad:#e5484d;
  --ai:#7a3cf0; --ai-weak:#f2ebff; --human:#0f8a7e; --human-weak:#e3f6f3;
  --r:14px; --shadow:0 1px 2px rgba(16,24,40,.04),0 4px 14px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:Pretendard,-apple-system,"Malgun Gothic",sans-serif;font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
a{color:var(--pri)}
.hidden{display:none!important}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.login{width:100%;max-width:440px;background:var(--card);border-radius:20px;box-shadow:var(--shadow);padding:36px 32px}
.brandmark{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15px;color:var(--sub)}
.logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#2457f5,#7a3cf0);display:grid;place-items:center;color:#fff;font-weight:900;font-size:15px;letter-spacing:-.5px}
.login h1{font-size:26px;margin:18px 0 4px;letter-spacing:-.5px}
.login .desc{color:var(--sub);margin:0 0 22px}
.cohort-badge{display:inline-block;background:var(--pri-weak);color:var(--pri);font-weight:700;border-radius:999px;padding:4px 12px;font-size:13px;margin-bottom:14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--sub);margin-bottom:6px}
.field label .req{color:var(--bad)}
.inp,.ta,.sel{width:100%;border:1px solid var(--line2);border-radius:10px;padding:11px 13px;background:#fff;outline:none;transition:border .15s,box-shadow .15s}
.inp:focus,.ta:focus,.sel:focus{border-color:var(--pri);box-shadow:0 0 0 3px rgba(36,87,245,.12)}
.ta{min-height:96px;resize:vertical;line-height:1.6}
.ta.sm{min-height:64px}
.btn{border:1px solid var(--line2);background:#fff;border-radius:10px;padding:10px 16px;font-weight:700;color:var(--text);transition:all .15s;white-space:nowrap}
.btn:hover{background:#f7f8fa}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.pri{background:var(--pri);border-color:var(--pri);color:#fff}
.btn.pri:hover{background:#1a47d6}
.btn.ghost{border-color:transparent;background:transparent}
.btn.sm{padding:6px 11px;font-size:13px;border-radius:8px}
.btn.block{width:100%;padding:14px;font-size:16px}
.btn.ai{background:var(--ai-weak);border-color:#d9c7ff;color:var(--ai)}
.btn.danger{color:var(--bad)}
.login .foot{text-align:center;color:var(--mute);font-size:12px;margin-top:20px}
.err{color:var(--bad);font-size:13px;margin:-4px 0 12px}
.hint{color:var(--mute);font-size:12.5px}

/* ---------- Header ---------- */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{max-width:1200px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:10px}
.top .cohort{display:flex;flex-direction:column;line-height:1.2;margin-left:4px}
.top .cohort b{font-size:14px}
.top .cohort span{font-size:12px;color:var(--mute)}
.top .sp{flex:1}
.top .nav{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
.chip-status{font-size:12px;color:var(--mute);padding:4px 8px;border-radius:999px;background:#f2f4f6}
.chip-status.ok{color:var(--ok);background:var(--ok-weak)}
.chip-status.ing{color:var(--warn);background:var(--warn-weak)}
.me{display:flex;align-items:center;gap:8px;margin-left:6px;font-weight:700;font-size:14px}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--pri);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:800}

/* ---------- Stepper ---------- */
.stepper{max-width:1200px;margin:0 auto;padding:14px 20px 0;display:flex;gap:6px;overflow-x:auto}
.step{flex:1;min-width:130px;display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:12px;background:#fff;border:1px solid var(--line);cursor:pointer;text-align:left}
.step .num{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:13px;background:#eef1f5;color:var(--sub);flex:none}
.step .lb{display:flex;flex-direction:column;line-height:1.25}
.step .lb b{font-size:14px}
.step .lb span{font-size:12px;color:var(--mute)}
.step.done .num{background:var(--ok-weak);color:var(--ok)}
.step.on{border-color:var(--pri);box-shadow:0 0 0 3px rgba(36,87,245,.1)}
.step.on .num{background:var(--pri);color:#fff}

/* ---------- Main ---------- */
.main{max-width:1200px;margin:0 auto;padding:22px 20px 120px}
.ph h2{font-size:22px;margin:0 0 6px;letter-spacing:-.3px}
.ph p{color:var(--sub);margin:0 0 18px;white-space:pre-line}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:20px;margin-bottom:16px}
.card.sel{border-color:var(--pri);box-shadow:0 0 0 3px rgba(36,87,245,.12)}
.card-h{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.card-h .no{width:28px;height:28px;border-radius:8px;background:#eef1f5;font-weight:800;display:grid;place-items:center;flex:none}
.card-h .title-inp{flex:1;font-size:17px;font-weight:700;border:none;border-bottom:2px solid var(--line);border-radius:0;padding:6px 2px;outline:none}
.card-h .title-inp:focus{border-color:var(--pri)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
@media (max-width:800px){.grid2,.grid3{grid-template-columns:1fr}}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid var(--line2);background:#fff;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600;color:var(--sub)}
.chip.on{background:var(--pri);border-color:var(--pri);color:#fff}
.tag{display:inline-flex;align-items:center;gap:4px;border-radius:6px;padding:2px 8px;font-size:12px;font-weight:700}
.tag.ai{background:var(--ai-weak);color:var(--ai)}
.tag.human{background:var(--human-weak);color:var(--human)}
.tag.tool{background:#eef1f5;color:var(--sub)}
.tag.star{background:#fff6d6;color:#b07800}
.tag.ok{background:var(--ok-weak);color:var(--ok)}
.tag.rec{background:linear-gradient(90deg,#ffe9a8,#ffd36b);color:#7a5200}
.status-line{font-size:12.5px;color:var(--warn)}
.status-line.ok{color:var(--ok)}
.actions{position:fixed;left:0;right:0;bottom:0;background:rgba(255,255,255,.95);border-top:1px solid var(--line);backdrop-filter:blur(8px);z-index:15}
.actions-in{max-width:1200px;margin:0 auto;padding:12px 20px;display:flex;gap:8px;align-items:center}
.actions .msg{flex:1;color:var(--mute);font-size:13px}
.score{margin-top:14px;background:linear-gradient(135deg,#f7f4ff,#eef3ff);border-radius:12px;padding:14px 16px;display:grid;grid-template-columns:repeat(3,1fr) auto;gap:14px;align-items:center}
.score .m b{display:block;font-size:22px}
.score .m span{font-size:12px;color:var(--sub);font-weight:700}
.bar{height:6px;background:#e3e7ee;border-radius:9px;overflow:hidden;margin-top:4px}
.bar i{display:block;height:100%;background:var(--pri);border-radius:9px}
.ax{font-size:13px;font-weight:800;color:var(--ai);text-align:center}
.ax b{display:block;font-size:28px;color:var(--ai)}
.score .tips{grid-column:1/-1;font-size:13px;color:var(--sub);margin:0;padding-left:18px}
.idea-sum{background:#f7f9fc;border-radius:12px;padding:16px;margin-bottom:16px}
.idea-sum h3{margin:2px 0 10px;font-size:18px}
.idea-sum pre{white-space:pre-wrap;font-family:inherit;margin:4px 0 10px;color:var(--text);font-size:14px}
.lbl{font-size:12px;font-weight:800;color:var(--mute);letter-spacing:.3px}
.flow-item{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:8px}
.flow-item.drag{opacity:.4}
.flow-item.over{border-color:var(--pri);border-style:dashed}
.handle{cursor:grab;color:var(--mute);padding:8px 2px;user-select:none;font-size:18px}
.flow-item .no{width:26px;height:26px;border-radius:50%;background:#eef1f5;font-weight:800;display:grid;place-items:center;font-size:13px;flex:none;margin-top:6px}
.flow-item .body{flex:1;display:flex;flex-direction:column;gap:8px}
.flow-item .ctl{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.seg{display:inline-flex;border:1px solid var(--line2);border-radius:9px;overflow:hidden}
.seg button{border:none;background:#fff;padding:6px 12px;font-size:13px;font-weight:700;color:var(--sub)}
.seg button.on.human{background:var(--human);color:#fff}
.seg button.on.ai{background:var(--ai);color:#fff}
.sel.sm{width:auto;padding:6px 10px;font-size:13px}
.xbtn{border:none;background:none;color:var(--mute);font-size:16px;padding:6px}
.xbtn:hover{color:var(--bad)}
.io{display:grid;grid-template-columns:1fr 34px 1fr 34px 1fr;gap:6px;align-items:stretch}
.io .arr{display:grid;place-items:center;color:var(--mute);font-size:18px}
.io .mod{background:#f2f5fb;border-radius:10px;padding:12px;font-weight:700;font-size:14px;display:flex;flex-direction:column;gap:6px;justify-content:center}
@media (max-width:900px){.io{grid-template-columns:1fr}.io .arr{transform:rotate(90deg)}}
.io-box{display:flex;flex-direction:column;gap:4px}
.io-box .lbl{display:flex;justify-content:space-between;align-items:center}
.linkbtn{border:none;background:none;color:var(--pri);font-size:12px;font-weight:700;padding:0}
.star-item{display:flex;align-items:center;gap:12px;padding:14px;border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:8px;cursor:pointer}
.star-item.on{border-color:#f1c232;background:#fffbea}
.star{font-size:24px;color:#c9ced6;border:none;background:none;padding:0 4px}
.star-item.on .star{color:#f1b400}
.prompt-box{background:#0f172a;color:#e2e8f0;border-radius:12px;padding:16px;white-space:pre-wrap;font-family:ui-monospace,Consolas,monospace;font-size:13px;line-height:1.6;max-height:420px;overflow:auto}
.prompt-box.empty{background:#f2f4f6;color:var(--mute);font-family:inherit}
.sum-sec{border-top:1px solid var(--line);padding-top:16px;margin-top:16px}
.sum-sec:first-child{border:none;margin:0;padding:0}
.sum-h{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.sum-h .n{width:24px;height:24px;border-radius:50%;background:var(--pri);color:#fff;font-weight:800;font-size:12px;display:grid;place-items:center}
.sum-h b{flex:1}
.sum-list{margin:0;padding-left:20px}
.sum-list li{margin-bottom:8px}
.sum-list .io-line{font-size:13px;color:var(--sub);white-space:pre-wrap}
.empty-note{color:var(--mute);font-size:14px;padding:20px;text-align:center;background:#f7f8fa;border-radius:12px}

/* ---------- Modal ---------- */
.ov{position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:50;display:flex;align-items:flex-start;justify-content:center;padding:4vh 16px;overflow:auto}
.modal{background:#fff;border-radius:18px;width:100%;max-width:980px;box-shadow:0 20px 60px rgba(0,0,0,.25);display:flex;flex-direction:column;max-height:92vh}
.modal.sm{max-width:560px}
.modal-h{padding:20px 24px 14px;border-bottom:1px solid var(--line);display:flex;align-items:flex-start;gap:10px}
.modal-h h3{margin:0;font-size:20px}
.modal-h p{margin:4px 0 0;color:var(--sub);font-size:13.5px}
.modal-h .x{margin-left:auto;border:none;background:none;font-size:22px;color:var(--mute)}
.modal-b{padding:20px 24px;overflow:auto;flex:1}
.modal-f{padding:14px 24px;border-top:1px solid var(--line);display:flex;gap:8px;align-items:center}
.ex-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ex-grid pre{white-space:pre-wrap;font-family:inherit;background:#f7f9fc;border-radius:12px;padding:16px;margin:6px 0 0;font-size:13.5px}
@media (max-width:800px){.ex-grid{grid-template-columns:1fr}}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:16px}
.tabs button{border:none;background:none;padding:10px 14px;font-weight:700;color:var(--mute);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button.on{color:var(--pri);border-color:var(--pri)}
table.tb{width:100%;border-collapse:collapse;font-size:13.5px}
table.tb th{background:#f7f8fa;text-align:left;padding:9px 10px;font-size:12.5px;color:var(--sub);border-bottom:1px solid var(--line)}
table.tb td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
table.tb tr.me td{background:#f3f7ff}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.pcard{border:1px solid var(--line);border-radius:12px;padding:14px}
.pcard.me{border-color:var(--pri);background:#f6f9ff}
.stagebar{display:flex;gap:3px;margin-top:8px}
.stagebar i{flex:1;height:6px;border-radius:4px;background:#e6e9ef}
.stagebar i.on{background:var(--pri)}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.wizard{display:flex;gap:4px;background:#f2f4f7;padding:10px;border-radius:12px;margin-bottom:18px;overflow-x:auto}
.wizard button{flex:1;min-width:92px;border:none;background:none;display:flex;align-items:center;gap:6px;padding:8px;border-radius:8px;font-weight:700;color:var(--sub);font-size:13px}
.wizard button i{font-style:normal;width:22px;height:22px;border-radius:50%;border:1.5px solid var(--line2);display:grid;place-items:center;font-size:11px;background:#fff}
.wizard button.on{background:#fff;color:var(--text);box-shadow:var(--shadow)}
.wizard button.on i{background:var(--pri);border-color:var(--pri);color:#fff}
.list-row{display:flex;gap:8px;align-items:flex-start;margin-bottom:8px}
.list-row .n{width:24px;height:24px;border-radius:50%;background:#eef1f5;display:grid;place-items:center;font-size:12px;font-weight:800;flex:none;margin-top:9px}
.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-top:12px}
.media-item{border:1px solid var(--line);border-radius:10px;overflow:hidden;position:relative;background:#fafbfc}
.media-item img{width:100%;height:130px;object-fit:cover;display:block}
.media-item .vid{height:130px;display:grid;place-items:center;background:#111;color:#fff;font-size:13px;padding:10px;text-align:center;word-break:break-all}
.media-item .xbtn{position:absolute;top:4px;right:4px;background:#fff;border-radius:50%;width:26px;height:26px;padding:0}
.media-item input{border:none;border-top:1px solid var(--line);width:100%;padding:8px;font-size:12.5px;outline:none}
.calc{background:var(--ok-weak);border-radius:12px;padding:16px;margin-top:12px}
.calc b{font-size:26px;color:var(--ok)}
.freq{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.freq .inp{width:110px}

/* ---------- Slides ---------- */
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.thumb{border:1px solid var(--line);border-radius:10px;overflow:hidden;cursor:pointer;background:#fff}
.thumb .cap{padding:8px 10px;font-size:12.5px;font-weight:700;color:var(--sub);border-top:1px solid var(--line)}
.thumb .frame{aspect-ratio:16/9;overflow:hidden;position:relative}
.thumb .frame .slide{transform:scale(.27);transform-origin:top left;position:absolute;top:0;left:0}
.slide{width:960px;height:540px;background:#fff;padding:56px 64px;position:relative;overflow:hidden;font-family:Pretendard,sans-serif;color:#191f28}
.slide h1{font-size:44px;margin:0 0 14px;letter-spacing:-1px;line-height:1.2}
.slide h2{font-size:30px;margin:0 0 22px;letter-spacing:-.5px}
.slide .kick{color:#2457f5;font-weight:800;font-size:16px;margin-bottom:12px}
.slide .meta{color:#5b6573;font-size:18px}
.slide.cover{background:linear-gradient(135deg,#1b3ccc,#6a33e0);color:#fff;display:flex;flex-direction:column;justify-content:flex-end}
.slide.cover .kick{color:#c9d6ff}
.slide.cover .meta{color:#dfe6ff}
.slide .two{display:grid;grid-template-columns:1fr 1fr;gap:24px;height:360px}
.slide .box{border-radius:14px;padding:20px 22px;font-size:16px;white-space:pre-wrap;overflow:hidden;line-height:1.55}
.slide .box.a{background:#fff1f0}
.slide .box.b{background:#ecf8f1}
.slide .box .t{font-weight:800;font-size:14px;margin-bottom:8px;letter-spacing:.5px}
.slide ol{margin:0;padding-left:22px;font-size:17px;line-height:1.6}
.slide .media{display:grid;gap:12px;height:380px}
.slide .media img{width:100%;height:100%;object-fit:contain;background:#f4f6f9;border-radius:10px}
.slide pre{background:#0f172a;color:#e2e8f0;border-radius:12px;padding:18px;font-size:12.5px;line-height:1.5;height:380px;overflow:hidden;white-space:pre-wrap;margin:0}
.slide .big{display:flex;gap:20px;margin-top:6px}
.slide .big div{flex:1;background:#f4f6fb;border-radius:14px;padding:18px}
.slide .big b{display:block;font-size:40px;color:#2457f5}
.slide .big span{font-size:14px;color:#5b6573;font-weight:700}
.slide .foot{position:absolute;bottom:22px;right:32px;font-size:12px;color:#8b95a1}
.slide.cover .foot{color:#c9d6ff}
.show{position:fixed;inset:0;background:#0b1020;z-index:80;display:flex;align-items:center;justify-content:center}
.show .stage{transform-origin:center center}
.show .ctrl{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:8px;align-items:center;color:#cbd5e1;font-size:13px}
.show .ctrl button{background:rgba(255,255,255,.12);color:#fff;border:none;border-radius:8px;padding:8px 14px}
#print-root{display:none}
@media print{
  body>*:not(#print-root){display:none!important}
  #print-root{display:block}
  #print-root .slide{page-break-after:always;break-after:page}
  @page{size:960px 540px;margin:0}
}

/* ---------- Gallery / admin ---------- */
.page{max-width:1100px;margin:0 auto;padding:28px 20px 80px}
.page-h{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.page-h h1{font-size:24px;margin:0}
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.gal .thumb .cap b{display:block;color:var(--text);font-size:14px}

#toast{position:fixed;left:50%;bottom:86px;transform:translateX(-50%);background:#191f28;color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;opacity:0;transition:opacity .2s;pointer-events:none;z-index:99}
#toast.on{opacity:.94}
.demo-banner{background:#fff4e5;color:#8a5200;font-size:12.5px;text-align:center;padding:6px}