:root{--bg:#12141a;--card:#1b1f27;--line:#2a303c;--fg:#e8ecf3;--mut:#8b93a7;--acc:#4da3ff;--warn:#ffb02e;--dan:#ff5d5d}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
header{display:flex;gap:18px;align-items:center;padding:12px 20px;border-bottom:1px solid var(--line);background:#151820}
header .logo{font-weight:700;color:var(--fg);text-decoration:none}
nav a{color:var(--mut);margin-right:14px;text-decoration:none}
main{padding:18px;max-width:1400px;margin:0 auto}
h1{font-size:22px;margin:0 0 12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:14px}
.narrow{max-width:340px;margin:80px auto}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:8px}
input,select,textarea,button{background:#0f131a;color:var(--fg);border:1px solid var(--line);border-radius:8px;padding:8px 10px;font:inherit}
input,select{min-width:140px}
textarea{width:100%}
button{cursor:pointer}
button:hover{border-color:var(--acc)}
button.warn{color:var(--warn)}
button.danger{color:var(--dan)}
.err{color:var(--dan)}.ok{color:#57d38c}.muted{color:var(--mut);font-size:13px}
.list{display:grid;gap:10px}
.item{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px;text-decoration:none;color:var(--fg)}
.item em{color:var(--mut);font-style:normal;font-size:13px}
.editor{display:grid;gap:12px}
.screen{position:relative;max-height:52vh;background:#000;border:1px solid var(--line);border-radius:12px;overflow:hidden;aspect-ratio:16/9}
.screen img{width:100%;height:100%;object-fit:cover;transform-origin:center}
#subs{position:absolute;left:0;right:0;bottom:52px;text-align:center;font-weight:700;font-size:22px;text-shadow:0 2px 0 #000,0 0 8px #000;padding:0 40px}
.playbar{position:absolute;left:0;right:0;bottom:0;display:flex;gap:12px;align-items:center;padding:8px 12px;background:linear-gradient(transparent,#000a)}
.dl{margin-left:auto;color:var(--acc);text-decoration:none}
.timeline{position:relative;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px 8px 8px 64px;height:210px;overflow-x:auto;overflow-y:hidden}
.ruler{height:20px;border-bottom:1px solid var(--line);position:relative;color:var(--mut);font-size:11px}
.track{position:relative;height:52px;margin-top:6px;background:#0f131a;border-radius:8px;border:1px solid var(--line)}
.track.subs{height:26px}
.tname{position:absolute;left:-60px;top:16px;font-size:12px;color:var(--mut)}
.clip{position:absolute;top:4px;bottom:4px;background:linear-gradient(180deg,#26405f,#1d2f47);border:1px solid #37618f;border-radius:6px;overflow:hidden;cursor:grab;font-size:11px;padding:3px 5px;white-space:nowrap;text-overflow:ellipsis}
.clip.sel{outline:2px solid var(--acc)}
.clip .thumb{position:absolute;inset:0;object-fit:cover;opacity:.55;width:100%;height:100%}
.clip .lbl{position:relative;z-index:2}
.audio-clip{left:0;background:#243b2c;border-color:#3f6b4d;cursor:default}
.subclip{position:absolute;top:3px;bottom:3px;background:#3a2f52;border:1px solid #5b4a80;border-radius:4px;font-size:10px;overflow:hidden;color:#cfc4ea}
.playhead{position:absolute;top:20px;bottom:0;width:2px;background:var(--acc);left:64px;pointer-events:none}
.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;margin:12px 0}
table{width:100%;border-collapse:collapse;font-size:13px;margin-top:8px}
th,td{text-align:left;padding:6px;border-bottom:1px solid var(--line)}
.check{display:flex;gap:8px;align-items:center;color:var(--mut)}
pre{white-space:pre-wrap;max-height:200px;overflow:auto}