:root{color-scheme:light dark;--bg: #f6f7f9;--card: #ffffff;--border: #e2e5ea;--text: #1b1d22;--muted: #6b7280;--primary: #4f46e5;--primary-text: #ffffff;--danger: #dc2626;font-family:system-ui,-apple-system,sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #0c0d10;--card: #16181d;--border: #2a2d35;--text: #e8e8ea;--muted: #9aa0ac;--primary: #6366f1}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.center{min-height:100vh;display:grid;place-items:center;padding:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px;width:100%;max-width:380px}.card h1{margin:0 0 4px;font-size:20px}.sub{color:var(--muted);font-size:14px;margin:0 0 20px}.field{display:block;margin-bottom:14px}.field span{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);font-size:14px}input:focus{outline:2px solid var(--primary);outline-offset:-1px}button{font:inherit;cursor:pointer;border-radius:8px;border:1px solid transparent;padding:10px 14px;font-size:14px}button:disabled{opacity:.6;cursor:default}.btn-primary{background:var(--primary);color:var(--primary-text);width:100%}.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn-sm{padding:6px 10px;font-size:13px}.error{color:var(--danger);font-size:13px;margin:0 0 14px}.muted{color:var(--muted)}.row{display:flex;gap:8px;align-items:center}.spread{display:flex;justify-content:space-between;align-items:center}a{color:var(--primary)}.shell{max-width:860px;margin:0 auto;padding:20px 24px}header.bar{border-bottom:1px solid var(--border);background:var(--card)}.bar-inner{max-width:860px;margin:0 auto;padding:14px 24px;display:flex;justify-content:space-between;align-items:center}.brand{font-weight:600}.svc{border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:12px;background:var(--card)}.key{font-family:ui-monospace,monospace;font-size:13px;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:4px 8px}