:root{--bg:#f6f7f9;--card:#ffffff;--text:#111827;--muted:#6b7280;--line:#e5e7eb;--brand:#c8102e;--brand-dark:#a30d25;--error:#b91c1c}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:inherit}h1{font-size:1.4rem;margin:0 0 .5rem}.muted{color:var(--muted)}.error{color:var(--error)}.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:28px;width:100%;max-width:420px}form{display:flex;flex-direction:column;gap:10px;margin-top:16px}label{font-size:.9rem;font-weight:600}input{padding:10px 12px;border:1px solid var(--line);border-radius:8px}button,input{font-size:1rem}button{padding:10px 14px;border:0;border-radius:8px;background:var(--brand);color:#fff;cursor:pointer}button:hover{background:var(--brand-dark)}button:disabled{opacity:.6;cursor:default}.topbar{display:flex;align-items:center;gap:20px;padding:12px 20px;background:#fff;border-bottom:1px solid var(--line)}.topbar .brand{font-weight:700}.topbar nav{display:flex;gap:14px;flex:1 1}.topbar nav a{text-decoration:none;color:var(--muted);font-size:.95rem}.topbar nav a:hover{color:var(--text)}.topbar form{margin:0;flex-direction:row}.topbar button{background:transparent;color:var(--muted);padding:6px 8px}.topbar button:hover{background:var(--bg);color:var(--text)}.page{padding:20px;max-width:1200px;margin:0 auto}table{border-collapse:collapse;width:100%;background:#fff;border:1px solid var(--line);border-radius:8px}td,th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);font-size:.9rem}th{background:#fafafa}