:root{--bg: #ffffff;--fg: #1a1a1a;--muted: #6b7280;--line: #e5e7eb;--chip-bg: #f3f4f6;--accent: #1d4ed8;--radius: 8px}@media(prefers-color-scheme:dark){:root{--bg: #111418;--fg: #e6e7e9;--muted: #9aa0a6;--line: #2a2f36;--chip-bg: #1c2128;--accent: #6ea8fe}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.app{max-width:720px;margin:0 auto;padding:2.5rem 1.25rem 1.25rem}.app__header{margin-bottom:1.75rem}h1{margin:0;font-size:1.6rem;font-weight:700;letter-spacing:-.01em}.app__subtitle{margin:.4rem 0 0;color:var(--muted)}.controls{display:grid;gap:1rem;margin-bottom:1.25rem}.field{display:grid;gap:.35rem}.field__label{font-size:.85rem;font-weight:600}.field__hint{color:var(--muted);font-weight:400}input[type=text]{width:100%;padding:.65rem .8rem;font-size:1rem;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);outline:none}input[type=text]:focus{border-color:var(--accent)}input[type=text]:disabled{opacity:.6}.status{margin:0 0 1rem;color:var(--muted);font-size:.9rem}.results{display:flex;flex-wrap:wrap;gap:.4rem;margin:0;padding:0;list-style:none}.results li{padding:.2rem .55rem;background:var(--chip-bg);border-radius:var(--radius);font-variant-numeric:tabular-nums}.footer{max-width:720px;margin:0 auto;padding:1.5rem 1.25rem 2.5rem;color:var(--muted);font-size:.85rem}.footer a{color:var(--accent);text-decoration:none}.footer a:hover{text-decoration:underline}