:root{color-scheme:light;--bg: #f6f7f9;--panel: #ffffff;--panel-2: #f0f3f7;--text: #111827;--muted: #667085;--line: #d9dee7;--line-strong: #c4ccd8;--primary: #111827;--primary-2: #344054;--accent: #0f766e;--danger: #b42318;--warning: #b54708;--success: #067647;--blue: #175cd3;--shadow: 0 18px 50px rgba(15, 23, 42, .08);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:linear-gradient(120deg,rgba(15,118,110,.08),transparent 35%),linear-gradient(280deg,rgba(23,92,211,.08),transparent 30%),var(--bg);color:var(--text)}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}a{color:inherit;text-decoration:none}.app-shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:22px;border-right:1px solid var(--line);background:#ffffffe0;padding:22px 16px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.sidebar-top{display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:8px;background:var(--primary);color:#fff}.brand strong,.brand span{display:block}.brand strong{font-size:.95rem}.brand span{color:var(--muted);font-size:.78rem}.nav{display:grid;gap:6px}.nav-link{display:flex;align-items:center;gap:10px;border-radius:8px;color:var(--muted);padding:10px 12px;transition:background .16s ease,color .16s ease}.nav-link:hover,.nav-link.active{background:#ecf0f5;color:var(--text)}.sidebar-note{display:flex;align-items:flex-start;gap:8px;margin-top:auto;border:1px solid var(--line);border-radius:8px;color:var(--muted);background:#f9fafb;padding:12px;font-size:.82rem;line-height:1.4}.main{min-width:0;padding:22px}.topbar{display:flex;align-items:center;gap:16px;justify-content:space-between;margin:0 auto 18px;max-width:1180px}.topbar h1,.panel h2,.result-card h2{margin:0;letter-spacing:0}.topbar h1{font-size:1.35rem}.eyebrow{margin:0 0 4px;color:var(--muted);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.ghost-link{border:1px solid var(--line);border-radius:8px;background:#ffffffb8;color:var(--muted);padding:8px 12px;font-size:.86rem}.workspace{display:grid;gap:18px;max-width:1180px;margin:0 auto}.workspace.two-column{grid-template-columns:minmax(320px,420px) minmax(0,1fr);align-items:start}.workspace.narrow{max-width:680px}.panel,.result-card{border:1px solid var(--line);border-radius:8px;background:#ffffffe6;box-shadow:var(--shadow);padding:18px}.input-panel{position:sticky;top:22px}.quiet-panel{box-shadow:none}.quiet-panel p{color:var(--muted);line-height:1.7}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px}.panel-heading h2{font-size:1.1rem}.segment{display:inline-grid;grid-auto-flow:column;gap:4px;border:1px solid var(--line);border-radius:8px;background:#f8fafc;padding:4px}.segment button{min-width:64px;border:0;border-radius:6px;background:transparent;color:var(--muted);padding:7px 12px}.segment button.active{background:var(--panel);color:var(--text);box-shadow:0 1px 4px #0f172a1a}textarea,input,select{width:100%;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);outline:none;padding:12px 13px}textarea{min-height:148px;margin-top:14px;resize:vertical;line-height:1.55}textarea:focus,input:focus,select:focus{border-color:var(--primary-2);box-shadow:0 0 0 3px #11182714}.controls-row,.inline-form{display:flex;align-items:center;gap:10px;margin-top:14px}.inline-form input{margin:0}.primary-button,.icon-text-button,.icon-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:8px;transition:transform .16s ease,background .16s ease,opacity .16s ease}.primary-button{min-height:42px;background:var(--primary);color:#fff;padding:0 16px;font-weight:700}.primary-button:hover:not(:disabled),.icon-text-button:hover:not(:disabled),.icon-button:hover:not(:disabled){transform:translateY(-1px)}.primary-button:disabled{opacity:.48}.primary-button.full{width:100%;margin-top:14px}.icon-text-button{min-height:36px;border:1px solid var(--line);background:#fff;color:var(--text);padding:0 12px;font-weight:650}.icon-button{width:38px;height:38px;border:1px solid var(--line);background:#fff;color:var(--text)}.metric-strip,.supported{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.metric-strip span,.supported span,.pill{border:1px solid var(--line);border-radius:999px;background:#f8fafc;color:var(--muted);padding:5px 9px;font-size:.78rem;font-weight:650}.notice{display:flex;align-items:flex-start;gap:9px;border-radius:8px;margin-top:14px;padding:11px 12px;font-size:.88rem;line-height:1.45}.notice.error{border:1px solid #fecdca;background:#fffbfa;color:var(--danger)}.notice.warning{border:1px solid #fedf89;background:#fffcf5;color:var(--warning)}.notice.success{border:1px solid #abefc6;background:#f6fef9;color:var(--success)}.results{display:grid;gap:14px}.media-head{display:grid;grid-template-columns:118px minmax(0,1fr);gap:14px}.thumb{display:grid;place-items:center;width:100%;aspect-ratio:16 / 10;overflow:hidden;border-radius:8px;background:var(--panel-2);color:var(--muted)}.thumb.small{width:76px;height:48px;aspect-ratio:auto}.thumb img{width:100%;height:100%;object-fit:cover}.result-card 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span{color:var(--muted);font-size:.84rem;margin-top:2px}.metric-grid,.status-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.metric,.status-item{border:1px solid var(--line);border-radius:8px;background:#f8fafc;padding:12px}.metric span,.status-item span{display:block;color:var(--muted);font-size:.82rem}.metric strong{display:block;margin-top:6px;font-size:1.35rem}.status-grid{margin-top:10px}.status-item{display:grid;gap:6px}.status-item.ok{color:var(--success)}.status-item.bad{color:var(--danger)}.status-item.muted{color:var(--muted)}.spin{animation:spin 1s linear infinite}.mobile-only{display:none}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:920px){.app-shell{display:block}.sidebar{position:fixed;z-index:20;inset:0 auto 0 0;width:280px;transform:translate(-105%);transition:transform .18s 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