:root{--bg: #f4f5f7;--card: #ffffff;--border: #d9dce1;--fg: #1c2230;--muted: #6b7280;--accent: #2563eb;--good: #15803d;--warn: #92600a;--err: #b91c1c}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;font-size:14px;line-height:1.5}.app{max-width:1240px;margin:0 auto;padding:24px 20px 48px}.hero h1{font-size:24px;margin:0 0 4px}.tagline{color:var(--muted);margin:0 0 20px}.grid{display:grid;grid-template-columns:340px 1fr 240px;gap:20px;align-items:start}.grid>*{min-width:0}@media (max-width: 900px){.grid{grid-template-columns:1fr}}.panel.left,.panel.center,.panel.ad{display:flex;flex-direction:column;gap:14px}.dropzone{border:2px dashed var(--border);border-radius:10px;background:var(--card);padding:20px;cursor:pointer;transition:border-color .15s}.dropzone:hover,.dropzone.over{border-color:var(--accent)}.dz-text{display:flex;flex-direction:column;gap:4px}.dz-text span{color:var(--muted);font-size:12.5px}.dz-file{color:var(--accent);font-style:normal;margin-top:4px}.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px}.card h3{margin:0 0 10px;font-size:13px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted)}.row{display:flex;justify-content:space-between;padding:4px 0;border-bottom:1px solid #eef0f3;font-size:13px}.row:last-child{border-bottom:none}.row .k{color:var(--muted)}.row .v{font-variant-numeric:tabular-nums;text-align:right}.hu-value{font-size:18px;margin-bottom:8px;display:flex;align-items:center;gap:8px}.hu-value .reset{margin-left:auto;font-size:11px;background:#eef0f3;color:var(--muted);border:1px solid var(--border);border-radius:6px;padding:3px 8px;cursor:pointer}input[type=range]{width:100%;accent-color:var(--accent)}.presets{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}.chip{background:#eef0f3;border:1px solid var(--border);color:var(--fg);border-radius:6px;padding:5px 9px;font-size:12px;cursor:pointer;display:flex;flex-direction:column;align-items:center;line-height:1.2}.chip small{color:var(--muted);font-size:10px}.chip.active{border-color:var(--accent);background:#e0ebff}.quality{display:flex;flex-direction:column;gap:4px;margin:6px 0 10px}.quality label{font-size:13px;color:var(--fg)}.quality select{padding:7px;border-radius:7px;border:1px solid var(--border);background:#fff;color:var(--fg);font-size:13px}.quality-note{font-size:11px;color:var(--muted)}.center-toggle{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--fg);margin:6px 0}.export{width:100%;padding:10px;border-radius:8px;border:none;background:var(--accent);color:#fff;font-weight:600;font-size:14px;cursor:pointer}.export:disabled{opacity:.5;cursor:not-allowed}.stats{text-align:center;font-size:12px;color:var(--muted);margin:8px 0 0}.disclaimer{font-size:11.5px;color:var(--warn);background:#fffaf0;border:1px solid #f0e2c0;border-radius:8px;padding:9px 11px}.viewer-wrap{position:relative;width:100%;height:560px;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:#0c1322}.viewer{width:100%;height:100%;display:block}.viewer-empty{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:0 30px;color:#9fb0cf;font-size:14px;pointer-events:none}.statusbar{margin-top:12px;padding:8px 12px;border-radius:8px;font-size:13px;background:var(--card);border:1px solid var(--border)}.statusbar.working{color:var(--accent)}.statusbar.ready{color:var(--good)}.statusbar.error{color:var(--err)}.ad-card{background:linear-gradient(160deg,#111827,#1e293b);color:#e5e7eb;border-radius:10px;padding:16px;border:1px solid #334155}.ad-card h3{margin:0 0 8px;font-size:16px;color:#fff;line-height:1.3}.ad-card p{margin:0 0 10px;font-size:13px;color:#cbd5e1}.ad-list{list-style:none;margin:0 0 12px;padding:0;display:flex;flex-direction:column;gap:6px}.ad-list li{font-size:12.5px;color:#e2e8f0;padding-left:18px;position:relative}.ad-list li:before{content:"→";position:absolute;left:0;color:#60a5fa}.ad-pitch{font-size:12px!important;color:#94a3b8!important}.ad-example{display:block;text-align:center;color:#93c5fd;text-decoration:none;font-size:12.5px;margin:0 0 10px}.ad-example:hover{color:#bfdbfe}.ad-cta{display:block;text-align:center;background:#2563eb;color:#fff;text-decoration:none;font-weight:600;font-size:13px;padding:10px;border-radius:7px;border:1px solid #3b82f6}.ad-cta:hover{background:#1d4ed8}