/* Compact single-tool surface, following the supplied Sideeffect references. */
:root{color-scheme:light;--ink:#252d38;--muted:#606a77;--line:#e0e3e7;--accent:#263b52}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#f3f4f6;color:var(--ink);font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;padding:clamp(24px,7vh,72px) 20px}.tool{width:100%;max-width:780px;margin:auto;padding:30px 32px 22px;background:#fff;border-radius:8px}header{display:flex;align-items:center;justify-content:space-between;gap:16px}h1{font-size:30px;letter-spacing:-.7px;line-height:1.2;margin:0;font-weight:750}.badge{font-size:12px;color:var(--muted);background:#f3f4f6;border:1px solid var(--line);border-radius:5px;padding:3px 8px}.intro{margin:9px 0 24px;color:var(--muted)}.files{display:grid;grid-template-columns:1fr 1fr;gap:14px}.filebox{min-width:0;display:block;padding:16px;border:1px dashed #cbd0d7;border-radius:6px}.filebox>span{display:block;font-weight:650}.optional{font-weight:400;color:var(--muted);font-size:12px;margin-left:4px}.filebox small{display:block;font-size:12px;color:var(--muted);margin:5px 0 16px}input[type=file]{font:12px system-ui;width:100%;min-width:0;color:var(--muted)}input::file-selector-button{font:600 12px system-ui;padding:9px 10px;border:1px solid var(--line);border-radius:4px;background:#f6f7f8;margin-right:8px;color:var(--ink);cursor:pointer}.actions{display:flex;gap:10px;margin-top:16px}button,.button{font:600 14px system-ui;border:1px solid transparent;background:var(--accent);color:#fff;padding:11px 17px;border-radius:5px;cursor:pointer;text-decoration:none;display:inline-block;min-height:42px}button:hover,.button:hover{filter:brightness(.92)}button:disabled{opacity:.55;cursor:wait}.secondary{background:#f6f7f8;color:var(--ink);border-color:var(--line)}a{color:#365c82;text-underline-offset:3px}.notice{font-size:12px;line-height:1.6;color:#71602d;margin:16px 0 0}.notice a{white-space:nowrap}#status{font-size:13px;margin:14px 0;color:var(--muted);overflow-wrap:anywhere}#status.error{color:#a12821}#progressbox{margin-top:18px}#phase{font-size:13px}progress{display:block;width:100%;height:8px;margin-top:8px;accent-color:var(--accent)}.output{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:20px 0 16px}#empty{margin:0;padding:24px 0;color:var(--muted);font-size:13px;text-align:center}#result{padding:18px 0}video{display:block;width:100%;max-height:380px;border-radius:5px;background:#20252c}#metrics{font-size:13px;font-weight:600;overflow-wrap:anywhere}.warning{font-size:13px;color:#825708}.muted{font-size:12px;color:var(--muted);margin-bottom:0}.demo{display:flex;align-items:center;gap:10px;font-size:13px;margin-bottom:18px}.demo label{white-space:nowrap}#demo-case{font:13px system-ui;padding:10px 7px;border:1px solid var(--line);border-radius:4px;min-width:0;max-width:100%;background:#fff;color:var(--ink)}.demo button{font-size:13px;padding:9px 12px}details{border-top:1px solid var(--line);font-size:13px;padding:11px 0;color:var(--muted)}summary{cursor:pointer;color:var(--ink);font-size:13px;width:fit-content}details p,details li{line-height:1.65}details h3{font-size:13px;color:var(--ink);margin:16px 0 6px}details ul{padding-left:20px}footer{border-top:1px solid var(--line);margin-top:0;padding-top:16px;color:var(--muted);font-size:12px}[hidden]{display:none!important}:focus-visible{outline:3px solid #4888b8;outline-offset:4px}@media(max-width:560px){body{padding:16px 12px}.tool{padding:22px 18px 18px}h1{font-size:27px}.files{grid-template-columns:1fr;gap:12px}.intro{font-size:14px;margin-bottom:20px}.filebox{padding:14px}.filebox small{margin-bottom:12px}.demo{flex-wrap:wrap;gap:8px}.demo label{flex-basis:100%}#demo-case{flex:1}button,.button{min-height:44px}.badge{font-size:11px}input::file-selector-button{min-height:40px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* Larger workspace with a quiet primary repair flow. */
body{font-size:18px;padding:clamp(24px,6vh,64px) 24px}.tool{max-width:960px;padding:40px 44px 28px}h1{font-size:38px}.badge{font-size:13px}.tabs{display:flex;gap:26px;border-bottom:1px solid var(--line);margin:26px 0 24px}.tabs button{font-size:17px;background:none;border:0;border-bottom:3px solid transparent;border-radius:0;color:var(--muted);padding:12px 0;min-height:48px}.tabs button[aria-selected=true]{color:var(--ink);border-color:var(--ink)}.intro{font-size:19px;margin:0 0 24px}.filebox{padding:24px;margin-bottom:16px}.filebox>span{font-size:18px;margin-bottom:14px}.filebox small{font-size:15px}.filebox input{font-size:16px}input::file-selector-button{font-size:15px;padding:12px 16px;min-height:46px}button,.button{font-size:17px;min-height:50px;padding:13px 24px}.actions{margin:22px 0}#status{font-size:16px;margin:20px 0}#status:empty{display:none}#phase{font-size:16px}#result{padding:16px 0}#metrics{font-size:15px}.quiet-note{font-size:14px;color:var(--muted);margin:28px 0}.explanation{max-width:730px}.explanation h2{font-size:21px;margin:26px 0 8px}.explanation h2:first-child{margin-top:0}.explanation p{font-size:17px;line-height:1.65;margin:0 0 24px;color:var(--muted)}details,summary{font-size:15px}details{padding:15px 0}.demo{margin:18px 0 4px;flex-wrap:wrap}.demo button,#demo-case{font-size:15px}#demo-case{flex:1;min-width:180px;max-width:100%}footer{font-size:14px;padding-top:20px;margin-top:20px}.muted,.warning{font-size:14px}@media(max-width:560px){body{padding:14px 10px}.tool{padding:26px 20px 22px}h1{font-size:32px}.tabs{margin:22px 0;gap:24px}.intro{font-size:17px}.filebox{padding:20px 16px}.filebox input{font-size:14px}.explanation p{font-size:16px}.quiet-note{font-size:12px}.badge{font-size:11px}}

/* Center the pristine Repair surface; retain that anchor as active content grows. */
:root{--ink:#657185;--muted:#687486;--accent:#657185;--line:#e3e6ec}html{overflow-y:scroll;scrollbar-gutter:stable}body{display:block;min-height:100vh;min-height:100svh;padding:var(--tool-top,32px) 24px 32px;font-weight:400}.tool{margin:0 auto;width:100%}h1{font-weight:600;letter-spacing:-.5px}.filebox>span{font-weight:500}button,.button,input::file-selector-button{font-weight:500}.tabs button{font-weight:500;border-bottom-width:2px}.tabs button[aria-selected=true]{font-weight:500;border-bottom-width:2px}.explanation h2{font-weight:500}#metrics{font-weight:500}.filebox{border-color:#d7dde5}.badge{font-weight:400}.quiet-note,footer,.muted{color:var(--muted)}@media(max-width:560px){body{padding:var(--tool-top,16px) 10px 16px}}