:root{color-scheme:dark;--bg: #0b0d10;--panel: #14171c;--border: #2a2f37;--fg: #e6e8eb;--muted: #8a92a0;--accent: #5eead4;--warn: #f59e0b;--err: #ef4444}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}header{padding:2rem 2rem 1rem}header h1{margin:0;font-size:1.5rem;letter-spacing:-.02em}header .tagline{color:var(--muted);margin:.25rem 0 0}main{padding:0 2rem 2rem;max-width:1100px}#config{display:flex;gap:1.5rem;flex-wrap:wrap;padding:1rem 0;color:var(--muted)}#config label{display:flex;align-items:center;gap:.5rem}#config select,#config input[type=checkbox]{background:var(--panel);color:var(--fg);border:1px solid var(--border);padding:.25rem .5rem;border-radius:4px}#drop{border:2px dashed var(--border);border-radius:8px;padding:3rem 2rem;text-align:center;color:var(--muted);transition:border-color .12s}#drop.dragover{border-color:var(--accent)}#drop button{background:transparent;color:var(--accent);border:1px solid var(--accent);padding:.25rem .75rem;border-radius:4px;cursor:pointer}#status{display:flex;align-items:center;gap:1rem;margin:1rem 0}progress{flex:1;height:6px}#result{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1rem}.panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:1rem}.panel.full{grid-column:1 / -1}.panel h3{margin:0 0 .75rem;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);display:flex;justify-content:space-between}.panel img{max-width:100%;height:auto;background:#fff;padding:.5rem;border-radius:4px}.panel pre{background:#0a0c10;border:1px solid var(--border);padding:.75rem;border-radius:4px;overflow-x:auto;font-size:.85rem;line-height:1.5;white-space:pre-wrap;word-break:break-word}#rendered{background:#fff;padding:1rem;border-radius:4px;overflow-x:auto;min-height:60px;color:#000}#rendered .katex{font-size:1.2em}#verdict{margin:.75rem 0 0;font-size:.85rem}#verdict.ok{color:var(--accent)}#verdict.warn{color:var(--warn)}#verdict.err{color:var(--err)}button#copy{background:transparent;border:1px solid var(--border);color:var(--muted);cursor:pointer;padding:.1rem .5rem;border-radius:4px;font-size:.7rem}button#copy:hover{border-color:var(--accent);color:var(--accent)}footer{padding:2rem;color:var(--muted);font-size:.8rem;border-top:1px solid var(--border)}footer a{color:var(--muted)}@media (max-width: 700px){#result{grid-template-columns:1fr}}