:root{
 --bg:#050a10;--panel:#0b1520;--panel2:#101d2b;--line:#33465a;--text:#f5f7fb;--muted:#9fb0c5;
 --gold:#f4b31a;--gold2:#ffd36e;--ok:#58d17b;--bad:#ff6c75;--blue:#42a5ff;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:#03070c;color:var(--text)}
button,input,textarea,select{font:inherit}button{cursor:pointer}a{text-decoration:none;color:inherit}.hidden{display:none!important}
.topbar{position:sticky;top:0;z-index:60;display:grid;grid-template-columns:1.5fr repeat(4,minmax(120px,.72fr)) 140px 96px;gap:8px;padding:8px;background:#10171f;border-bottom:1px solid #364250}
.brand,.stat,.navbtn{border:1px solid #3b4754;border-radius:11px;background:linear-gradient(180deg,#1b232c,#151c23);padding:10px 12px}
.brand small,.stat small{display:block;color:#aab6c4;font-size:11px}.brand b{color:var(--gold2);font-size:19px}.stat b{font-size:16px}.navbtn{display:grid;place-items:center;font-weight:800}
.layout{max-width:1540px;margin:auto;padding:12px;display:grid;grid-template-columns:370px minmax(0,1fr);gap:12px;align-items:start}
.sidebar{position:sticky;top:94px;max-height:calc(100vh - 108px);overflow:auto;background:#09131e;border:1px solid #2e4052;border-radius:15px;padding:14px}
.sidebar h1{font-size:22px;margin:0;color:var(--gold2)}.sidebar p{font-size:13px;color:var(--muted);line-height:1.45}
.section{border-top:1px solid #2a3948;margin-top:13px;padding-top:12px}.section h3{font-size:15px;margin:0 0 8px}
label{display:block;font-weight:800;font-size:12px;margin:9px 0 4px}
input,textarea,select{width:100%;border:1px solid #34485b;border-radius:9px;background:#0c1722;color:white;padding:9px 10px;outline:none}
textarea{min-height:72px;resize:vertical}.small{font-size:11px;color:var(--muted)}
.btnrow{display:flex;gap:7px;flex-wrap:wrap;margin-top:8px}.btn{border:1px solid #3b5065;border-radius:9px;background:#172537;color:white;padding:9px 11px;font-weight:800}.btn.primary{background:var(--gold);border-color:#dda100;color:#111}.btn.good{background:#174c2b}.btn.danger{background:#501e27}.notice{padding:9px 10px;border-radius:9px;background:#14293b;color:#d0e9ff;font-size:12px;margin-top:8px}
.workspace{min-width:0}.titlebox{text-align:center;border:1px solid #765b12;background:#08131e;border-radius:12px;padding:9px;margin-bottom:8px}.titlebox h2{margin:0;color:var(--gold2);font-family:Georgia,serif;font-size:28px}.titlebox small{color:#b6c3d2}
.game{display:grid;grid-template-columns:160px minmax(0,1fr) 190px;gap:8px;min-height:660px}
.panel{background:#08131f;border:1px solid #765b0a;border-radius:10px;padding:10px;min-width:0}.panel h3{font-size:12px;color:var(--gold2);text-align:center;margin:0 0 8px}
.inv{display:grid;grid-template-columns:1fr 1fr;gap:6px}.slot{aspect-ratio:1;border:1px dashed #6f5a28;border-radius:8px;background:#0d1823;display:grid;place-items:center;text-align:center;font-size:10px;color:#c5cfda;padding:4px}
.clue-log{display:grid;gap:6px}.clue{border-bottom:1px solid #34404d;padding:6px 0;font-size:11px}.clue.locked{opacity:.45}.clue b{display:block}
.room{background:#07111b;border:1px solid #8d6800;border-radius:10px;padding:7px;min-width:0}.roomhead{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:6px}.roomhead h3{font-family:Georgia,serif;color:#ffd36e;font-size:20px;margin:0}.roomhead small{color:#b8c4d0}.counter{border:1px solid #987300;border-radius:999px;padding:3px 7px;font-size:11px}
.scene{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:8px;background:#111a24;border:1px solid #465361;cursor:crosshair}.scene img{width:100%;height:100%;object-fit:cover;display:block}.empty{position:absolute;inset:0;display:grid;place-items:center;color:#7f91a5}
.hotspot{position:absolute;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;border:2px solid white;background:rgba(224,151,11,.94);color:#fff;font-weight:900;box-shadow:0 0 0 3px rgba(244,179,26,.35),0 7px 20px rgba(0,0,0,.4);display:grid;place-items:center}
.hotspot.solved{background:#2f9850}.hotspot.locked{background:#52606d;opacity:.6}.scenefoot{display:flex;justify-content:space-between;gap:10px;color:#aebccd;font-size:12px;margin-top:6px}
.door{margin-top:10px;padding:10px;border:1px solid #6f5a24;border-radius:9px;background:#0c1722}.door b{color:var(--gold2)}.doorstate{font-size:12px;margin-top:5px}.doorstate.open{color:var(--ok)}
.route{margin-top:8px;border:1px solid #755b08;border-radius:11px;background:#08131c;padding:8px}.routehead{display:flex;justify-content:space-between;color:var(--gold2);font-size:12px;font-weight:900}.progress{height:8px;background:#2b3947;border-radius:999px;overflow:hidden;width:45%;margin:7px auto 9px}.progress span{display:block;height:100%;background:var(--gold);width:0}
.roomtabs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.roomtab{position:relative;aspect-ratio:16/8.4;border:1px solid #574c2a;border-radius:8px;overflow:hidden;background:#111;opacity:.38}.roomtab.open{opacity:.8}.roomtab.active{opacity:1;border-color:var(--gold);box-shadow:0 0 0 1px var(--gold)}.roomtab img{width:100%;height:100%;object-fit:cover}.shade{position:absolute;inset:0;background:linear-gradient(180deg,transparent 25%,rgba(0,0,0,.84))}.roomtab b{position:absolute;left:6px;right:6px;bottom:5px;font-size:10px}.lockmark{position:absolute;inset:0;display:grid;place-items:center;font-size:22px}
.modalback{position:fixed;inset:0;background:rgba(0,0,0,.72);display:grid;place-items:center;z-index:100;padding:18px}.modal{width:min(650px,100%);max-height:90vh;overflow:auto;border:1px solid #5b6b7c;border-radius:16px;background:#0d1824;padding:18px;box-shadow:0 30px 90px rgba(0,0,0,.58)}.modal h2{margin:0;color:var(--gold2)}.modal p{color:#c9d3df;line-height:1.5}.option{width:100%;text-align:left;margin:7px 0;border:1px solid #3d5063;border-radius:9px;background:#132131;color:#fff;padding:10px}.feedback{margin-top:10px;padding:10px;border-radius:9px;background:#13283a}.feedback.good{background:#143b23;color:#c6f4d2}.feedback.bad{background:#3c181d;color:#ffd2d5}
.library{max-width:1180px;margin:auto;padding:22px 14px 50px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.card{border:1px solid #36495c;border-radius:15px;background:linear-gradient(180deg,#101c29,#0b1520);overflow:hidden}.thumb{aspect-ratio:16/8.5;background:#121c26}.thumb img{width:100%;height:100%;object-fit:cover}.cardbody{padding:13px}.card h2{margin:0 0 5px;font-size:18px}.meta{font-size:12px;color:var(--muted);line-height:1.45;margin-bottom:10px}
.student .layout{display:block;max-width:1500px}.student .sidebar{display:none}.student .workspace{padding:8px}.student .scene{cursor:default}
@media(max-width:1150px){.game{grid-template-columns:130px minmax(0,1fr)}.game>.panel:last-child{grid-column:1/-1}.topbar{grid-template-columns:1.4fr repeat(2,1fr) 130px}.topbar .stat:nth-of-type(n+4){display:none}}
@media(max-width:900px){.layout{grid-template-columns:1fr}.sidebar{position:static;max-height:none}.game{grid-template-columns:1fr}.roomtabs{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.grid{grid-template-columns:1fr}.titlebox h2{font-size:22px}}