:root{--bg:#ffffff;--fg:#0f172a;--muted:#475569;--card:#f8fafc;--border:#e2e8f0;--accent:#2563eb}*{box-sizing:border-box}body,html{padding:0;margin:0}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji;background:var(--bg);color:var(--fg)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1000px;margin:0 auto;padding:24px}.header{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:1px solid var(--border);margin-bottom:20px}.brand{font-weight:800;font-size:20px}.nav{display:flex;gap:14px;flex-wrap:wrap}.footer{margin-top:28px;padding-top:12px;border-top:1px solid var(--border);color:var(--muted);font-size:12px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}input,textarea{width:100%;border:1px solid var(--border);border-radius:10px;padding:10px 12px;font-size:14px;background:white;color:var(--fg)}textarea{min-height:140px}button{border:1px solid var(--border);background:var(--accent);color:white;border-radius:10px;padding:10px 14px;cursor:pointer}button.secondary{background:white;color:var(--fg)}.results{margin-top:14px;display:grid;grid-gap:10px;gap:10px}.result{padding:12px;border:1px solid var(--border);border-radius:12px;background:white}.result .meta{color:var(--muted);font-size:12px;margin-top:6px}