*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f5f6f8;--card:#ffffff;--text:#16181d;--muted:#5b6472;--border:#e2e5ea;--accent:#111318;--error:#c0392b;--success:#1e7e46}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}.header{background:var(--accent);color:#fff;padding:14px 24px}.brand{color:#fff;text-decoration:none;font-weight:700;font-size:18px;letter-spacing:.5px}.main{flex:1 1;width:100%;max-width:560px;margin:0 auto;padding:40px 20px}.footer{border-top:1px solid var(--border);padding:16px 24px;display:flex;gap:20px;justify-content:center;font-size:13px}.footer,.footer a{color:var(--muted)}.stack{display:flex;flex-direction:column;gap:20px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px}.card h1{font-size:22px;margin-bottom:10px}.card h2{font-size:18px;margin-bottom:8px}.card p{color:var(--muted);font-size:14px;line-height:1.6;margin-bottom:16px}.button{display:inline-block;background:var(--accent);color:#fff;border:none;border-radius:8px;padding:12px 22px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none}.button:disabled{opacity:.5;cursor:default}.button.secondary{background:transparent;color:var(--muted);border:1px solid var(--border);font-weight:500;padding:8px 14px;font-size:13px}.account{display:flex;align-items:center;gap:16px}.account .grow{flex:1 1}.avatar{width:56px;height:56px;border-radius:50%;object-fit:cover;border:1px solid var(--border)}.label{font-size:12px;color:var(--muted);margin-bottom:2px}.name{font-size:17px;font-weight:700}.field{display:block;font-size:13px;font-weight:600;margin-bottom:16px}.field input{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-weight:400}.result{margin-top:16px;padding:14px;background:var(--bg);border-radius:8px;font-size:13px;line-height:1.8}.result code{background:#e9ecf1;padding:2px 6px;border-radius:4px}.error{color:var(--error);font-size:13px;margin-top:12px}.success{color:var(--success);font-size:14px;font-weight:600;margin-top:12px}.legal{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:36px;line-height:1.7;font-size:14px}.legal h1{font-size:24px;margin-bottom:4px}.legal .updated{color:var(--muted);font-size:12px;margin-bottom:24px}.legal h2{font-size:16px;margin:22px 0 8px}.legal li,.legal p{color:#333a45;margin-bottom:8px}.legal ul{padding-left:22px}