:root{--bg:#141414;--panel:#1f1f1f;--line:#333;--text:#eee;--muted:#9a9a9a;--gold:#c9a86e;--red:#e05a5a}
*{box-sizing:border-box}
html,body{background:var(--bg)}
body{margin:0;color:var(--text);font:15px/1.5 system-ui,"Segoe UI",Arial,sans-serif;overflow-x:hidden}
[hidden]{display:none!important}
header{display:flex;gap:10px;align-items:center;padding:10px 16px;border-bottom:1px solid var(--line);flex-wrap:wrap}
h1{font-size:17px;margin:0 0 0 10px;color:var(--gold)}
button,select,input,textarea,.btn{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:7px 11px;font:inherit;text-decoration:none;display:inline-block}
button{cursor:pointer} button:hover{border-color:var(--gold)}
.primary{background:var(--gold);color:#141414;border-color:var(--gold);font-weight:700}
.mark{background:var(--red);border-color:var(--red);color:#fff;font-weight:700;font-size:17px;padding:10px 18px}
main{display:grid;grid-template-columns:minmax(260px,380px) 1fr;gap:18px;padding:16px}
video{width:100%;border-radius:10px;background:#000;max-height:80vh}
#bar{position:relative;height:56px;user-select:none;-webkit-user-select:none;background:var(--panel);border-radius:8px;margin-top:8px;cursor:pointer;touch-action:none}
#bar .p{position:absolute;top:0;bottom:0;width:3px;background:#fff}
#bar .m{position:absolute;top:6px;width:10px;height:44px;margin-right:-5px;background:var(--red);border-radius:3px}
#steps{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
#t{font-variant-numeric:tabular-nums;color:var(--muted);margin-top:6px}
.kinds{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.kinds button.on{background:var(--gold);color:#141414;border-color:var(--gold)}
textarea{width:100%;min-height:64px}
.row{display:flex;gap:8px;margin:8px 0 16px;align-items:center}
.item{border:1px solid var(--line);border-radius:10px;padding:8px 10px;margin-bottom:8px;display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:start}
.item b{font-variant-numeric:tabular-nums;color:var(--gold);cursor:pointer}
.item .k{color:var(--red);font-weight:700}
.item small{color:var(--muted)}
.muted{color:var(--muted);font-size:13px}
#status{color:var(--gold)}
.gate{min-height:100dvh;display:grid;place-items:center;padding:16px}
.gate .box{max-width:360px;text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px}
.gate h1{font-size:28px;margin:0 0 8px}
@media (max-width:820px){
 main{grid-template-columns:1fr;padding:10px;gap:12px}
 header{padding:8px 10px;gap:6px}
 h1{font-size:15px;width:100%}
 header select{flex:1 1 100%;font-size:16px;padding:10px}
 header button{flex:1 1 30%;padding:11px 6px}
 header #save{flex:1 1 100%}
 video{max-height:58vh;object-fit:contain}
 #steps button{flex:1 1 30%;padding:11px 4px}
 button,select,input,textarea{font-size:16px}
 body{padding-bottom:86px}
 .mark{position:fixed;left:10px;right:10px;bottom:max(10px,env(safe-area-inset-bottom));z-index:5;font-size:20px;padding:16px;box-shadow:0 6px 18px #000a}
 .desk{display:none}
 .kinds button{padding:10px 12px}
}