:root{color-scheme:dark;--bg:#0b1019;--surface:#111925;--surface2:#151f2d;--surface3:#1c2938;--line:#263447;--text:#edf3f8;--muted:#8a9aab;--accent:#6ee7c1;--accent2:#8fc7ff;--warn:#ffc66e;--red:#ff8181;--shadow:0 18px 48px #0004;font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 22% -20%,#173245 0,transparent 40%),var(--bg);color:var(--text);min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer;color:inherit}.topbar{height:78px;border-bottom:1px solid #ffffff0b;display:flex;align-items:center;justify-content:space-between;padding:0 max(28px,calc((100vw - 1540px)/2));background:#0b1019d9;backdrop-filter:blur(18px);position:sticky;top:0;z-index:5}.brand{display:flex;gap:13px;align-items:center;text-decoration:none;color:inherit;font-family:ui-monospace,SFMono-Regular,Consolas,monospace,sans-serif;font-size:17px;line-height:1.2}.brand-mark{display:grid;place-items:center;width:43px;height:43px;border-radius:14px;background:linear-gradient(135deg,#6ee7c1,#87a9ff);color:#07151a;font-size:23px;font-weight:700;box-shadow:0 6px 24px #6ee7c133}.brand small{display:block;color:var(--muted);font:11px Inter,ui-sans-serif,system-ui,sans-serif,sans-serif;margin-top:5px}.top-actions,.toolbar-actions,.timeline-tools{display:flex;align-items:center;gap:10px}.privacy{font-size:12px;color:#a9b9c7;margin-right:13px}.privacy i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin:0 7px 1px 0;box-shadow:0 0 10px #6ee7c1}.button{height:38px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface2);font-size:12px;font-weight:600;transition:.18s ease}.button:hover{border-color:#56718a;transform:translateY(-1px);background:var(--surface3)}.button.primary{border-color:transparent;background:var(--accent);color:#08221b;font-weight:700}.button.primary:hover{background:#91f2d1}.button.subtle{background:#141d28}.toolbar{max-width:1540px;margin:24px auto 16px;padding:0 28px;min-height:62px;display:flex;justify-content:space-between;align-items:center}.file-meta{display:flex;align-items:center;gap:12px}.file-meta>div{display:grid;gap:4px}.file-meta strong{font-size:13px}.file-meta small{font-size:11px;color:var(--muted)}.file-icon{display:grid;place-items:center;width:38px;height:42px;border-radius:9px;background:#1c3440;color:var(--accent);font:700 11px ui-monospace,SFMono-Regular,Consolas,monospace;border:1px solid #2d5a5a}.format-label{font-size:11px;color:var(--muted);margin-left:4px}select{background:#141d28;border:1px solid var(--line);color:var(--text);height:38px;padding:0 28px 0 10px;border-radius:9px;outline:none}.workspace{max-width:1540px;padding:0 28px 28px;margin:auto;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(360px,.92fr);gap:17px;align-items:start}.left-column,.right-column{display:grid;gap:16px}.panel{border:1px solid var(--line);border-radius:15px;background:linear-gradient(145deg,#141d29,#101722 80%);box-shadow:var(--shadow);overflow:hidden}.preview-panel{padding:21px}.panel-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.panel-heading.compact{padding:17px 18px 0;margin-bottom:13px}.eyebrow{font:700 9px ui-monospace,SFMono-Regular,Consolas,monospace,sans-serif;letter-spacing:1.4px;color:var(--accent2)}h1,h2{font-family:ui-monospace,SFMono-Regular,Consolas,monospace,sans-serif;margin:5px 0 0;font-size:18px;letter-spacing:-.3px}h2{font-size:15px}.switch-label{display:flex;align-items:center;gap:8px;font-size:11px;color:#bac6d2;cursor:pointer}.switch-label input{position:absolute;opacity:0;width:1px;height:1px}.switch{width:29px;height:17px;background:#435061;border-radius:20px;position:relative;transition:.2s}.switch:after{content:'';position:absolute;width:11px;height:11px;top:3px;left:3px;background:white;border-radius:50%;transition:.2s}.switch-label input:checked+.switch{background:#339d80}.switch-label input:checked+.switch:after{transform:translateX(12px)}.switch-label input:focus-visible+.switch{outline:2px solid var(--accent2)}.video-stage{position:relative;aspect-ratio:16/9;min-height:280px;background:radial-gradient(ellipse at 52% 30%,#294056,#172537 45%,#0d1723 80%);border:1px solid #273b50;border-radius:12px;overflow:hidden;display:grid;place-items:center}.video-stage:before{content:'';position:absolute;inset:0;background:linear-gradient(0deg,#070c13aa,transparent 53%),radial-gradient(circle at 28% 32%,#8bbed51a,transparent 32%);pointer-events:none}.video-stage video{width:100%;height:100%;object-fit:contain;background:#05080c}.stage-empty{z-index:1;text-align:center;display:flex;align-items:center;flex-direction:column;gap:9px;color:#a9bbcc}.stage-empty strong{font:600 14px ui-monospace,SFMono-Regular,Consolas,monospace;color:#e5edf4}.stage-empty span{font-size:11px}.play-symbol{width:51px;height:51px;border-radius:17px;background:#6ee7c11a;border:1px solid #6ee7c14b;color:var(--accent);display:grid;place-items:center;margin-bottom:4px}.stage-button{margin-top:7px;color:var(--accent)}.caption-overlay{position:absolute;z-index:2;bottom:8%;left:10%;right:10%;text-align:center;font:600 clamp(15px,2vw,24px)/1.35 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17px;padding:15px;border-radius:9px;background:#0c141e;color:#8192a3;font-size:11px}.editor-panel form{padding:0 17px}.time-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.time-grid label,.text-label{display:grid;gap:6px;color:#b9c6d2;font-size:10px;font-weight:600}.time-grid input,.text-label textarea{width:100%;border:1px solid #2d3c4e;border-radius:8px;background:#0c141e;color:#e9f1f8;padding:10px 11px;outline:none;font:11px ui-monospace,SFMono-Regular,Consolas,monospace;font-variant-numeric:tabular-nums}.time-grid input:focus,.text-label textarea:focus{border-color:#5bba9d;box-shadow:0 0 0 3px #6ee7c119}.time-grid span{font-size:9px;color:#728396;font-weight:400}.text-label{margin-top:13px}.text-label textarea{font:12px/1.45 Inter,ui-sans-serif,system-ui,sans-serif;resize:vertical;min-height:86px}.editor-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:9px;color:#708194;font-size:10px}.diagnostics-panel{padding-bottom:13px}.status-badge{padding:5px 8px;border-radius:7px;font-size:9px;font-weight:600}.status-badge.good{color:var(--accent);background:#6ee7c11a}.status-badge.warn{color:var(--warn);background:#ffc66e19}.status-badge.neutral{color:#a4b2bf;background:#8796a219}.diagnostics{padding:0 17px}.diagnostics p{margin:8px 0;font-size:10px}.muted{color:#75879a}.issue-row{display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:10px;color:#c4d0db;border-bottom:1px solid #ffffff08}.issue-dot{color:var(--warn);font-weight:700}.issue-dot.error{color:var(--red)}.parse-details{margin:8px 17px 0;padding-top:8px;border-top:1px solid #273446;font-size:10px;color:#e4bd7b}.parse-details summary{cursor:pointer}.parse-details pre{white-space:pre-wrap;color:#9aabba;font:10px/1.5 Inter,ui-sans-serif,system-ui,sans-serif}footer{max-width:1540px;padding:0 28px 22px;margin:auto;display:flex;justify-content:space-between;color:#647487;font-size:10px}footer b,.footer-dot{color:#465d73;padding:0 6px}footer a{color:#95aec2;text-decoration:none}footer a:hover{color:var(--accent)}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,16px);opacity:0;pointer-events:none;background:#1c2c39;border:1px solid #3b566d;padding:11px 16px;border-radius:10px;font-size:12px;box-shadow:var(--shadow);transition:.2s;z-index:10}.toast.show{opacity:1;transform:translate(-50%,0)}:focus-visible{outline:2px solid var(--accent2);outline-offset:2px}#timeline-track:focus{outline-offset:3px}@media(max-width:1050px){.workspace{grid-template-columns:minmax(0,1fr) 370px}.topbar{padding:0 20px}.privacy{display:none}}@media(max-width:800px){.workspace{grid-template-columns:1fr;padding:0 14px 20px}.toolbar{padding:0 14px;align-items:flex-start;gap:12px}.toolbar-actions{flex-wrap:wrap;justify-content:flex-end}.brand{font-size:14px}.topbar{padding:0 14px}.top-actions .subtle{display:none}.preview-panel{padding:15px}.video-stage{min-height:220px}.cue-list{max-height:220px}footer{padding:0 14px 20px;gap:10px;flex-wrap:wrap}}@media(max-width:480px){.privacy{display:none}.toolbar{display:grid;grid-template-columns:1fr}.toolbar-actions{justify-content:flex-start}.time-grid{grid-template-columns:1fr}.transport-hint{display:none}.timeline-tools{gap:5px}.button.micro{padding:0 7px;font-size:9px}.video-stage{min-height:190px}.topbar{height:65px}}