:root{--green: #2e7d32;--green-dark: #1b5e20;--bg: #f6f7f6;--card: #ffffff;--text: #1a1a1a;--muted: #5f6b5f;--border: #e0e4e0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}main{max-width:640px;margin:0 auto;padding:24px 16px 64px}h1{font-size:1.4rem}h2{font-size:1.1rem}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin:12px 0;cursor:pointer;transition:border-color .15s,box-shadow .15s}.card:hover{border-color:var(--green);box-shadow:0 2px 8px #0000000f}button{background:var(--green);color:#fff;border:none;border-radius:10px;padding:12px 18px;font-size:1rem;cursor:pointer}button:hover{background:var(--green-dark)}button:disabled{opacity:.5;cursor:default}label{display:block;margin:12px 0 4px;color:var(--muted);font-size:.9rem}input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:1rem}.error{color:#b00020;margin:12px 0}.muted{color:var(--muted)}.row{display:flex;align-items:center;gap:10px}a.back{color:var(--muted);text-decoration:none;font-size:.9rem}