:root {
      --primary: #106ebe;
      --danger: #c62828;
      --border: #ddd;
      --surface: #f7f9fc;
      --radius: 10px;
      --shadow: 0 4px 16px rgba(0,0,0,0.08);
      --gap: 16px;
    }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      font-family: Arial, sans-serif;
      background: var(--surface);
      color: #222;
    }
    .container {
      width: 100%;
      margin: 24px auto;
      padding: 0 16px;
      background-color: #106ebe;
    }
    header { text-align: center; margin-bottom: 20px; }
    header h1 { color: var(--primary); margin: 0; }
    .grid {
      display: grid;
      gap: var(--gap);
      grid-template-columns: 1fr;
    }
    @media (min-width: 900px) {
      .grid { grid-template-columns: 1fr 1fr; }
    }
    .card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 20px;
      display: flex;
      margin: 20px;
      flex-direction: column;
    }
    .section-title {
      font-weight: bold;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .form-row {
      display: flex;
      align-items: center;
      margin-bottom: 12px;
    }
    .form-row label {
      flex: 0 0 180px;
      font-weight: 600;
      margin-right: 10px;
    }
    .required { color: var(--danger); }
    .form-row input,
    .form-row select,
    .form-row textarea {
      flex: 1;
      min-width: 0;
      padding: 8px;
      border: 1px solid var(--border);
      border-radius: 6px;
      font-size: 0.95rem;
    }
    .form-row textarea { min-height: 120px; resize: vertical; }
    button {
      background: var(--primary);
      color: #fff;
      border: none;
      padding: 10px 16px;
      border-radius: 6px;
      cursor: pointer;
    }
    button.secondary { background: #eee; color: #333; }
    .banner img { max-width: 100%; height: auto; border-radius: var(--radius); display: block; }
    .actions { text-align: center; margin-top: auto; }
    @media (max-width: 600px) {
      .form-row { flex-direction: column; align-items: stretch; }
      .form-row label { flex: none; margin-bottom: 6px; }
    }