:root{
      --primary:#1273ea;
      --text:#0f172a;
      --muted:#475569;
      --bg:#f8fafc;
      --card:#ffffff;
      --radius:14px;
      --shadow:0 12px 30px rgba(2,6,23,.08);
      --border:#e5e7eb;
    }
    *{box-sizing:border-box}
    body{margin:0;background:var(--bg);color:var(--text);
      font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif}
    a{color:var(--primary);text-decoration:none}
    .container{max-width:800px;margin:0 auto;padding:28px}
    .topbar{background:#ffffff;position:sticky;top:0;z-index:50;border-bottom:1px solid var(--border)}
    .nav{display:flex;align-items:center;gap:18px;justify-content:space-between;padding:12px 18px;max-width:1170px;margin:0 auto}
    .brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--primary)}
    .brand svg{width:26px;height:26px}
    .menu{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
    .menu a{font-weight:600;color:var(--text);opacity:.9}
    .menu .cta{padding:10px 14px;border-radius:12px;background:var(--primary);color:#fff;font-weight:800}
    .notice{background:#0b5fff;color:#fff;text-align:center;padding:10px 14px;font-weight:700}
    .notice a{color:#fff;text-decoration:underline;font-weight:800}
    h1{text-align:center;color:#1a56db;margin:0 0 8px;font-size:32px}
    .lead{text-align:center;color:var(--muted);margin:0 0 20px}
    .contact-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;border:1px solid var(--border)}
    label{font-weight:600;display:block;margin:12px 0 6px}
    input,textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;background:#fff;font-size:16px}
    textarea{resize:vertical;min-height:120px}
    button{display:block;margin:24px auto 0;background:var(--primary);color:#fff;border:none;padding:14px 22px;border-radius:12px;
           font-weight:800;cursor:pointer;transition:background .2s ease}
    button:hover{background:#0b5fff}
    .flash{display:block;margin:0 0 18px;padding:14px 18px;border-radius:12px;font-weight:600}
    .flash-success{background:#ecfdf5;border:1px solid #bbf7d0;color:#047857}
    .flash-error{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c}
    .field-error{display:block;margin:6px 0 0;color:#b91c1c;font-size:14px;font-weight:600}