:root{color-scheme:dark;--bg:#10131b;--panel:#171c27;--panel2:#1e2532;--line:#2a3444;--text:#e9edf5;--muted:#9daabd;--accent:#9ce279;--cyan:#78d9db;--danger:#ff6b70;font-family:Manrope,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 76% 0%,#172b34 0,transparent 36%),var(--bg);color:var(--text);min-height:100vh}.topbar{height:72px;padding:0 max(24px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#10131bdd;position:sticky;top:0;z-index:5;backdrop-filter:blur(14px)}.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-size:15px;text-decoration:none;letter-spacing:.01em}.brand b{font-weight:800}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--accent);color:#172319;font-size:22px;font-weight:800}.local-badge,.meta-pill{font:11px 'DM Mono',monospace;letter-spacing:.03em;color:#c4d1d7;border:1px solid #34444d;background:#1b272c;border-radius:999px;padding:8px 12px}.local-badge{display:flex;align-items:center;gap:8px}.local-badge span{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px #9ce279aa}main{max-width:1180px;margin:0 auto;padding:68px 24px 60px}.hero{max-width:730px;margin:0 0 52px}.eyebrow{font:11px 'DM Mono',monospace;letter-spacing:.18em;color:var(--cyan);margin:0 0 12px}.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.02;letter-spacing:-.055em;margin:0;max-width:650px}.hero-copy{color:var(--muted);font-size:17px;line-height:1.75;max-width:640px;margin:20px 0 0}.workspace{border:1px solid var(--line);border-radius:20px;background:linear-gradient(145deg,#181e29,#151a24);padding:26px;margin:0 0 22px;box-shadow:0 12px 40px #0002}.section-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.section-title h2{margin:0;font-size:22px;letter-spacing:-.025em}.section-title .eyebrow{margin-bottom:7px}.upload-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.upload-card{min-height:142px;border:1px dashed #455366;border-radius:16px;background:#141a23;display:grid;grid-template-columns:42px 1fr;grid-template-rows:auto 1fr;align-content:center;align-items:center;column-gap:13px;padding:22px;cursor:pointer;transition:.18s ease}.upload-card:hover,.upload-card:focus-within{border-color:var(--accent);background:#1b2428}.upload-card input{position:absolute;width:1px;height:1px;clip:rect(0,0,0,0);overflow:hidden}.upload-card:focus-within{outline:2px solid var(--accent);outline-offset:3px}.upload-icon{grid-row:span 2;width:42px;height:42px;border-radius:13px;background:#2a3d34;color:var(--accent);display:grid;place-items:center;font:700 18px 'DM Mono',monospace}.current-icon{color:var(--cyan);background:#253b41}.upload-label{font-size:15px;font-weight:800}.file-name{font-size:12px;color:var(--muted);margin-top:5px;overflow-wrap:anywhere}.quiet-button,.secondary-button,.primary-button{font:700 12px Manrope,system-ui,sans-serif;border-radius:10px;padding:11px 14px;cursor:pointer;transition:.15s ease}.quiet-button,.secondary-button{background:#1a202b;color:var(--text);border:1px solid var(--line)}.quiet-button:hover,.secondary-button:hover:not(:disabled){border-color:#718096;background:#222b39}.primary-button{background:var(--accent);color:#172118;border:1px solid var(--accent)}.primary-button:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px)}button:disabled{opacity:.45;cursor:not-allowed}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:15px}.mode-picker{display:flex;gap:4px;border:1px solid var(--line);border-radius:11px;padding:4px;margin:0}.mode-picker input{position:absolute;opacity:0;pointer-events:none}.mode-picker label span{display:block;padding:9px 12px;border-radius:8px;color:var(--muted);font-size:11px;font-weight:700;cursor:pointer}.mode-picker input:checked+span{background:#2a3443;color:var(--text)}.mode-picker input:focus-visible+span{outline:2px solid var(--accent)}.range-control{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:11px;font-weight:700}.range-control input{width:105px;accent-color:var(--accent)}.range-control output{font:11px 'DM Mono',monospace;color:var(--text);min-width:32px}.resize-row{display:flex;align-items:center;gap:14px;border:1px solid #715d33;background:#312a1c;color:#f2d99b;border-radius:11px;padding:12px 14px;margin-bottom:15px;font-size:12px}.resize-row select{background:#191b20;border:1px solid #746542;color:var(--text);padding:8px 10px;border-radius:8px;font:inherit}.notice{border:1px solid #634955;background:#2c2029;color:#f2c4c3;padding:11px 14px;border-radius:10px;font-size:12px;margin-top:14px}.hidden{display:none!important}.viewer{min-height:320px;border:1px solid var(--line);border-radius:14px;background:#0c0f15;display:flex;align-items:flex-start;justify-content:center;gap:14px;padding:14px;overflow:auto}.viewer.empty{align-items:center;min-height:340px}.empty-state{display:flex;align-items:center;flex-direction:column;gap:9px;color:var(--muted);text-align:center}.empty-state strong{font-size:16px;color:var(--text)}.empty-state span:last-child{font-size:12px}.empty-symbol{font-size:36px;color:var(--cyan);line-height:1}.image-frame{margin:0;flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:10px}.image-frame figcaption{font:11px 'DM Mono',monospace;color:#d2d9e2}.image-frame canvas{display:block;max-width:100%;max-height:540px;object-fit:contain;background:#080a0e;image-rendering:auto}.mode-overlay .image-frame,.mode-diff .image-frame{flex:0 1 auto}.mode-overlay .image-frame canvas,.mode-diff .image-frame canvas{max-height:630px}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.stat-card{border:1px solid var(--line);background:#141923;border-radius:14px;padding:17px;min-width:0}.stat-card span,.stat-card small{display:block;color:var(--muted);font-size:11px}.stat-card strong{display:block;font:700 clamp(20px,3vw,30px) 'DM Mono',monospace;margin:10px 0 8px;overflow-wrap:anywhere}.stat-card small{font-size:10px}.export-row{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-top:17px}.status{font-size:11px;color:var(--muted);margin-left:auto}.status.success{color:var(--accent)}.status.error{color:var(--danger)}.how-it-works{max-width:820px;padding:12px 4px 0}.how-it-works p:last-child{color:var(--muted);font-size:12px;line-height:1.8;margin:0}footer{border-top:1px solid var(--line);max-width:1180px;margin:auto;padding:22px 24px 34px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:11px}footer a{color:var(--text);text-decoration:none}footer a:hover{text-decoration:underline}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

@media(max-width:760px){main{padding:44px 16px}.topbar{padding:0 16px;height:62px}.local-badge{font-size:0;padding:9px}.local-badge span{width:8px;height:8px}.hero{margin-bottom:34px}.hero-copy{font-size:15px}.workspace{padding:18px;border-radius:16px}.upload-grid{grid-template-columns:1fr}.upload-card{min-height:115px}.toolbar{align-items:flex-start}.mode-picker{width:100%;justify-content:space-between}.mode-picker label span{padding:9px 8px}.range-control{width:100%;justify-content:space-between}.range-control input{flex:1;max-width:220px}.viewer{min-height:250px;padding:9px}.mode-side{flex-direction:column}.mode-side .image-frame{width:100%}.stats-grid{grid-template-columns:1fr}.stat-card{padding:14px}.status{width:100%;margin:3px 0 0}.section-title{align-items:flex-start}.meta-pill{max-width:50%;text-align:center;line-height:1.4}.resize-row{align-items:flex-start;flex-direction:column}footer{padding:20px 16px}}