:root{color-scheme:light;--bg:#f7f7fb;--card:#fff;--border:#e2e2ea;--text:#1f2230;--muted:#6b6f80;--accent:#6d28d9;--accent-contrast:#fff;--error:#b3261e}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.container{max-width:760px;margin:0 auto;padding:32px 20px 64px}h1{font-size:1.75rem;margin-bottom:4px}.subtitle{color:var(--muted);margin-top:0;margin-bottom:24px}.form{gap:16px;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px}.form,.form label{display:flex;flex-direction:column}.form label{gap:6px;font-weight:600;font-size:.9rem}.form input,.form select{font-size:1rem;padding:10px 12px;border-radius:8px;border:1px solid var(--border);font-weight:400;background:#fff;color:var(--text)}.form button,.result-header button{background:var(--accent);color:var(--accent-contrast);border:none;border-radius:8px;padding:12px 16px;font-size:1rem;font-weight:600;cursor:pointer}.form button:disabled,.result-header button:disabled{opacity:.6;cursor:not-allowed}.error{color:var(--error);font-weight:600;margin:0}.result{margin-top:32px}.result-header{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.markdown{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;margin-top:16px;overflow-x:auto}.markdown h1,.markdown h2,.markdown h3{margin-top:1.4em}.markdown table{width:100%;border-collapse:collapse}.markdown td,.markdown th{border:1px solid var(--border);padding:8px;text-align:left;vertical-align:top}@media (max-width:480px){.container{padding:20px 16px 48px}}