:root{--ink:#14181b;--blue:#118cfa;--mut:#6b737a;--line:#dfe5ea;--bg:#f6f8fb;color-scheme:light}
*{box-sizing:border-box}
body{margin:0;background:#fff;color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:460px;margin:0 auto;padding:max(28px,env(safe-area-inset-top)) 20px 40px;text-align:center}
.logo{display:block;width:min(70%,260px);margin:0 auto 6px}
.sub{color:var(--mut);margin:0 0 24px}
.field{position:relative}
input:not([type=range]):not([type=file]):not([type=color]),select{width:100%;height:54px;padding:0 16px;font:inherit;font-size:17px;color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:14px;outline:0}
input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(17,140,250,.15)}
#c{position:absolute;right:14px;top:17px;font-size:12px;color:var(--mut)}
.btn{display:flex;align-items:center;justify-content:center;width:100%;height:54px;margin-top:12px;border:0;border-radius:14px;background:var(--blue);color:#fff;font:600 16px inherit;font-family:inherit;text-decoration:none;cursor:pointer}
.btn.alt{background:var(--ink)}
.btn:disabled{opacity:.6;cursor:progress}
#msg{margin:14px 0 0;padding:10px 14px;border-radius:10px;background:#eaf4ff;color:#0b5cad;font-size:14px}
#msg.err{background:#fdecea;color:#b3261e}
#out{margin-top:24px}
.stage{aspect-ratio:9/16;max-height:62vh;margin:0 auto;background:#000;border-radius:16px;overflow:hidden}
.stage canvas,.stage video{width:100%;height:100%;object-fit:contain;display:block}
.card{margin-top:24px;padding:18px;background:var(--bg);border:1px solid var(--line);border-radius:18px;text-align:left}
.card h2{margin:0 0 12px;font-size:18px}
.card label{display:block;margin-top:14px;font-size:14px;color:var(--mut)}
.card label input:not([type=range]):not([type=file]),.card select{margin-top:6px;background:#fff}
input[type=range]{width:100%;accent-color:var(--blue)}
.row span{flex:none}.row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;font-size:14px;color:var(--mut)}
.sw{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
.sw button,.sw input[type=color]{width:28px;height:28px;padding:0;border:2px solid #fff;border-radius:50%;box-shadow:0 0 0 1px var(--line);cursor:pointer}
.sw button.on{box-shadow:0 0 0 2px var(--blue)}
.sw input[type=color]{width:28px;height:28px;padding:0;border:2px solid #fff;border-radius:50%;background:none;overflow:hidden}
.file input{display:block;margin-top:6px;width:100%;font-size:14px}
.foot{margin-top:28px;font-size:13px;color:var(--mut)}
[hidden]{display:none!important}

nav.top{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 18px;padding:14px 16px 0;font-size:14px}
nav.top a,.site-foot a{color:var(--mut);text-decoration:none}
nav.top a:hover,.site-foot a:hover{color:var(--blue)}
.info{margin-top:36px;text-align:left}
.info h2{font-size:20px;margin:26px 0 10px}
.info ol,.info ul{margin:0;padding-left:22px;color:#3a4248}
.info li{margin:6px 0}
details{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:8px 0;background:var(--bg)}
summary{cursor:pointer;font-weight:600}
details p{margin:8px 0 0;color:#3a4248;font-size:15px}
a{color:var(--blue)}
main.doc{max-width:720px;text-align:left}
.doc .logo.sm{width:150px;margin:8px auto 18px}
.doc h1{font-size:30px;line-height:1.2;margin:0 0 12px}
.doc h2{font-size:20px;margin:28px 0 8px}
.doc p,.doc li{color:#3a4248}
.doc ul{padding-left:22px}.doc li{margin:6px 0}
.doc .mut{color:var(--mut);font-size:14px}
.contact{text-align:center;margin:20px 0}
.contact .lab{margin:0;font-size:13px;color:var(--mut);text-transform:uppercase;letter-spacing:.08em}
.contact .big{margin:6px 0 4px;font-size:18px;word-break:break-all}
.contact .btn{max-width:260px;margin:12px auto 0}
.btn,.btn:hover{color:#fff}
.site-foot{max-width:720px;margin:0 auto;padding:24px 20px calc(30px + env(safe-area-inset-bottom));border-top:1px solid var(--line);text-align:center;font-size:14px;color:var(--mut)}
.site-foot nav{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-bottom:10px}