:root{--bg:#0d0a14;--bg2:#141020;--card:#181226;--line:#2c2340;--txt:#e9e4f3;--mut:#a99fbf;--g:#7CFF3A;--g2:#b9ff8f;--p:#8b5cf6;--p2:#c4b5fd;--warn:#ffcf8a;
--r:14px;font-synthesis:none}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--txt);font:15px/1.5 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
button{font:inherit;color:inherit;cursor:pointer}
a{color:var(--g2)}
.top{display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;padding:12px 20px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,#120c1d,#0d0a14 60%,#0f1610)}
.brand{display:flex;gap:12px;align-items:center}
.brand h1{margin:0;font:700 19px/1.1 Cinzel,"Cinzel Decorative",Georgia,serif;letter-spacing:.4px;background:linear-gradient(90deg,#fff,#c4b5fd 60%,#b9ff8f);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand p{margin:2px 0 0;color:var(--mut);font-size:12px;letter-spacing:.3px}
.moon{width:34px;height:34px;border-radius:50%;box-shadow:inset -9px -3px 0 0 #c4b5fd;transform:rotate(-20deg);filter:drop-shadow(0 0 8px rgba(196,181,253,.6))}
.progresswrap{max-width:520px;width:100%;justify-self:center}
.progressmeta{display:flex;justify-content:space-between;font-size:12px;color:var(--mut);margin-bottom:5px}
.progressmeta #stepCounter{color:var(--txt);font-weight:600}
.progress{height:8px;border-radius:8px;background:#221a33;overflow:hidden}
.progress div{height:100%;width:0;background:linear-gradient(90deg,var(--g),var(--p));border-radius:8px;transition:width .5s ease;box-shadow:0 0 12px rgba(124,255,58,.5)}
.timer{display:flex;align-items:center;gap:8px}
.mono{font-variant-numeric:tabular-nums;font-family:"JetBrains Mono",ui-monospace,Menlo,monospace;font-size:16px;color:var(--g2);letter-spacing:.5px}
.remaining{font-size:12px;color:var(--mut);min-width:110px}
.btn{border:1px solid transparent;background:linear-gradient(135deg,#7CFF3A,#5ee08a);color:#0d0a14;font-weight:700;border-radius:10px;padding:9px 14px;transition:transform .12s, box-shadow .2s, background .2s}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(124,255,58,.25)}
.btn.ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--txt);font-weight:600}
.btn.ghost:hover{border-color:var(--p);box-shadow:0 6px 18px rgba(139,92,246,.2)}
.btn.sm{padding:6px 10px;font-size:13px;border-radius:9px}
.btn[aria-pressed="true"]{border-color:var(--g);color:var(--g2);background:rgba(124,255,58,.08)}
.btn:disabled{opacity:.4;pointer-events:none}
.layout{display:grid;grid-template-columns:1fr minmax(360px,440px);height:calc(100vh - 67px);height:calc(100dvh - 67px)}
.viewer{position:relative;overflow:hidden;background:radial-gradient(ellipse at 50% 35%,#2a1747 0%,#160e26 45%,#0a0711 100%)}
.viewer.uv{background:radial-gradient(ellipse at 50% 35%,#1a0b3d 0%,#0b0620 50%,#04020a 100%)}
#scene{width:100%;height:100%;display:block;touch-action:none;outline:none}
.fallback{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:20px;text-align:center;color:var(--mut)}
.fallback[hidden]{display:none}
.fallback img{max-height:70%;max-width:90%;border-radius:var(--r);border:1px solid var(--line)}
.hud{position:absolute;display:flex;gap:8px;flex-wrap:wrap;z-index:2}
.hud.tl{top:14px;left:14px;flex-direction:column;align-items:flex-start}
.hud.tr{top:14px;right:14px}
.hud.bl{left:14px;bottom:14px;background:rgba(13,10,20,.7);backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:30px;padding:7px 14px;align-items:center;font-size:13px;font-weight:600}
.hud.br{right:14px;bottom:16px}
.hint{font-size:12px;color:var(--mut)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--g);box-shadow:0 0 10px var(--g);animation:pulse 1.6s infinite}
@keyframes pulse{50%{opacity:.35;transform:scale(.8)}}
.seg{display:inline-flex;background:rgba(13,10,20,.72);backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:11px;padding:3px}
.seg button{border:0;background:none;padding:6px 11px;border-radius:8px;font-size:13px;color:var(--mut);font-weight:600}
.seg button.on{background:linear-gradient(135deg,rgba(139,92,246,.9),rgba(91,33,182,.9));color:#fff;box-shadow:0 2px 10px rgba(139,92,246,.4)}
.panel{border-left:1px solid var(--line);background:var(--bg2);display:flex;flex-direction:column;min-height:0}
.tabs{display:flex;gap:2px;padding:8px 10px 0;border-bottom:1px solid var(--line);overflow-x:auto;flex:none}
.tabs button{border:0;background:none;padding:10px 12px;color:var(--mut);font-weight:600;font-size:14px;border-bottom:2px solid transparent;white-space:nowrap}
.tabs button.on{color:#fff;border-bottom-color:var(--g)}
.tab{display:none;padding:16px;overflow-y:auto;flex:1;min-height:0}
.tab.on{display:block}
.stepcard{background:linear-gradient(180deg,#1b1430,#161022);border:1px solid var(--line);border-radius:var(--r);padding:16px;position:relative;animation:fadein .35s ease}
@keyframes fadein{from{transform:translateY(6px)}}
.stepcard .kick{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--p2);font-weight:700}
.stepcard h2{margin:4px 0 8px;font:700 22px/1.15 Cinzel,Georgia,serif;color:#fff}
.meta{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.pill{display:inline-block;font-size:12px;font-weight:600;padding:3px 9px;border-radius:20px;border:1px solid #3d5a2c;color:var(--g2);background:rgba(124,255,58,.06)}
.pill.p{border-color:#4b3a7a;color:var(--p2);background:rgba(139,92,246,.1)}
.lab{font-size:11px;letter-spacing:1.6px;text-transform:uppercase;color:var(--p2);font-weight:700;margin:12px 0 4px}
.stepcard ul,.stepcard ol{margin:0;padding-left:20px}
.stepcard li{margin:4px 0}
.stepcard ul li::marker{color:var(--g)}
.stepcard ol li::marker{color:var(--p2);font-weight:700}
.tips{margin-top:12px;border:1px dashed #3d5a2c;background:rgba(124,255,58,.05);border-radius:10px;padding:10px 12px;font-size:14px}
.tips b{color:var(--g2)}
.halfnote{margin-top:10px;font-size:14px;color:#d8ccff;border-left:3px solid var(--p);padding-left:10px}
.overview p{margin:0 0 10px}
.stepnav{display:flex;gap:8px;margin:12px 0 4px}
.stepnav .btn{flex:1}
.listhead{font:700 13px Inter;letter-spacing:1.5px;text-transform:uppercase;color:var(--mut);margin:18px 0 8px}
.steplist{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.steplist button{width:100%;display:flex;align-items:center;gap:10px;text-align:left;background:rgba(255,255,255,.02);border:1px solid transparent;border-radius:10px;padding:7px 10px;font-size:14px}
.steplist button:hover{border-color:var(--line)}
.steplist button.cur{border-color:var(--p);background:rgba(139,92,246,.12)}
.steplist .n{width:24px;height:24px;flex:none;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:800;background:#241b38;color:var(--p2)}
.steplist .done .n{background:linear-gradient(135deg,var(--g),#5ee08a);color:#0d0a14}
.steplist .t{flex:1}
.steplist .m{font-size:12px;color:var(--mut)}
.kithead{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.kithead p{margin:0;flex:1;color:var(--mut);font-size:13px}
.kitgroup{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;margin-bottom:10px}
.kitgroup h4{margin:0 0 6px;font:700 15px Cinzel,Georgia,serif;color:var(--g2)}
.kitgroup:nth-child(even) h4{color:var(--p2)}
.kitgroup label{display:flex;gap:10px;align-items:flex-start;padding:5px 0;font-size:14px;cursor:pointer}
.kitgroup input{appearance:none;width:18px;height:18px;flex:none;margin-top:2px;border:1.5px solid #4b3a7a;border-radius:5px;display:grid;place-items:center;background:#120d1c}
.kitgroup input:checked{background:var(--g);border-color:var(--g)}
.kitgroup input:checked::after{content:"✓";color:#0d0a14;font-size:12px;font-weight:900}
.kitgroup input:checked + span{color:var(--mut);text-decoration:line-through;text-decoration-color:rgba(124,255,58,.6)}
.infocard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;margin-bottom:10px}
.infocard.warn{border-color:#5b3a1a;background:linear-gradient(180deg,#1f1611,#171018)}
.infocard.warn h4{color:var(--warn)}
.infocard h4{margin:0 0 6px;font:700 16px Cinzel,Georgia,serif;color:var(--g2)}
.infocard ul,.infocard ol{margin:0;padding-left:20px}.infocard li{margin:5px 0;font-size:14px}
.gallery{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.gallery figure{margin:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--card);cursor:zoom-in}
.gallery img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:50% 25%;display:block;transition:transform .3s}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{font-size:12px;padding:6px 9px;color:var(--mut)}
.variants .infocard h4{font-size:15px}
.trouble{width:100%;border-collapse:collapse;font-size:13.5px}
.trouble td{padding:7px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.trouble td:first-child{color:#fff;font-weight:600;width:38%}
.sources li{word-break:break-word}
.small{font-size:12px;color:var(--mut)}
.lightbox{position:fixed;inset:0;background:rgba(5,3,10,.92);display:flex;align-items:center;justify-content:center;z-index:20;padding:20px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:100%;max-height:100%;border-radius:12px}
.lightbox .btn{position:absolute;top:16px;right:16px}
@media (max-width:900px){
  .top{grid-template-columns:1fr auto;gap:10px;padding:10px 12px}
  .progresswrap{grid-column:1/-1;grid-row:2;max-width:none}
  .brand h1{font-size:16px}.brand p{display:none}.moon{width:26px;height:26px}
  .remaining{display:none}
  .layout{grid-template-columns:1fr;height:auto}
  .viewer{height:56vh;min-height:340px}
  .panel{border-left:0;border-top:1px solid var(--line)}
  .tab{overflow:visible}
  .hint{display:none}
  .hud.tr{top:auto;bottom:58px;right:10px;flex-direction:column;align-items:flex-end}
  .hud.tl{top:10px;left:10px}
  .seg button{padding:5px 8px;font-size:12px}
  .hud.tr .btn{padding:5px 8px;font-size:12px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}