:root{--wine:#7f2446;--wine2:#a53b62;--cream:#fff9f3;--pink:#f8e6eb;--ink:#2b2024;--muted:#796b70;--line:#eadde1;--gold:#c49a55}
*{box-sizing:border-box}body{margin:0;background:#fbf7f5;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.top{display:flex;align-items:center;gap:12px;padding:17px clamp(16px,4vw,40px);background:white;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand-mark{width:43px;height:43px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(135deg,var(--wine),var(--wine2));color:white;font-size:25px}
h1{font-size:18px;margin:2px 0 0}.eyebrow{font-size:10px;font-weight:800;letter-spacing:1.5px;color:var(--wine);margin:0}
.pill{margin-left:auto;border:1px solid #e8cad5;color:var(--wine);font-size:10px;font-weight:800;border-radius:99px;padding:6px 9px}
main{max-width:1200px;margin:auto;padding:24px 16px 48px}.intro{max-width:700px;margin:8px 0 25px}.intro h2{font-size:clamp(28px,5vw,43px);letter-spacing:-1.3px;line-height:1.05;margin:10px 0}.intro p:last-child{color:var(--muted);line-height:1.55;max-width:620px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.8fr);gap:22px;align-items:start}.panel,.preview-wrap,.how{background:white;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 8px 28px #5b23300a}
h3{font-size:16px;margin:2px 0 15px}.controls h3:not(:first-child){margin-top:25px;padding-top:18px;border-top:1px solid var(--line)}
label{display:block;font-size:13px;font-weight:700;margin:13px 0;color:#45363b}input,textarea,select{display:block;width:100%;margin-top:7px;border:1px solid #dfd0d5;background:#fffdfc;color:var(--ink);border-radius:10px;padding:12px;font:inherit;font-weight:400;min-height:44px}textarea{resize:vertical;line-height:1.45}
.upload{padding:13px;border:1px dashed #d9b9c6;background:#fff9fb;border-radius:12px}.upload input{border:0;padding:5px 0;background:transparent}.hint{font-size:11px;color:var(--muted);font-weight:400;display:block}
.actions{display:flex;gap:10px;margin-top:20px}button{border:0;border-radius:11px;background:var(--wine);color:white;padding:13px 15px;font-size:14px;font-weight:750;cursor:pointer;min-height:46px;flex:1}button.secondary{background:var(--pink);color:var(--wine)}button:disabled{opacity:.55}
#status{font-size:12px;color:var(--muted);line-height:1.5;min-height:18px}.preview-wrap{position:sticky;top:92px}.preview-head,.preview-foot{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:var(--muted);align-items:center}.preview-head{font-weight:800;letter-spacing:.8px;color:var(--wine)}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#58a77a;margin-right:5px}
.stage-shell{margin:15px auto 10px;position:relative;width:min(100%,330px);aspect-ratio:9/16;border-radius:16px;overflow:hidden;background:linear-gradient(150deg,#fff3f5,#f7e8d9);box-shadow:0 12px 28px #3a15251c}
canvas{display:block;width:100%;height:100%;object-fit:contain}.empty{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:20px;color:var(--wine);gap:8px;pointer-events:none}.empty span{font-size:12px;color:var(--muted)}.spark{font-size:42px;color:var(--gold)}.preview-foot{margin:12px 0}.note{background:#fff8ee;border-radius:11px;padding:12px;font-size:12px;line-height:1.5;color:#6c5550;margin-top:16px}.how{margin-top:22px}.how ol{padding-left:21px;line-height:1.8;font-size:14px}.how p{font-size:12px;line-height:1.5;color:var(--muted)}
footer{text-align:center;padding:20px;color:var(--muted);font-size:11px}
@media(max-width:780px){.layout{grid-template-columns:1fr}.preview-wrap{position:static;grid-row:1}.stage-shell{width:min(74vw,310px)}.panel{padding:16px}.actions{flex-direction:column}.top{position:static}}