:root {
      --border: 1.5px dotted #333;
      --gap: 1.3em;
      --radius: 6px;
      --main: #111;
      --accent: #4580f0;
      --label: #222;
      --legend: #222;
      
    }

    body {
      background: var(--bg);
      font-family:  "Nunito", sans-serif;
      margin: 0;
      padding: 0;
    }

    .container {
      max-width: 860px;
      margin: 40px auto 0 auto;
      background: var(--bg);
      padding: 2.4em 2em 1.4em 2em;
      border-radius: 10px;
      box-shadow: 0 2px 18px rgba(0,0,0,0.04);
    }

    h2 {
      text-align: center;
      font-size: 2.1em;
      font-weight: 700;
      margin-bottom: 0.25em;
      letter-spacing: 0.02em;
    }

    p {
      text-align: center;
      font-size: 1.07em;
      margin-bottom: 2em;
      color: #222;
    }

    fieldset {
      border: var(--border);
      border-radius: var(--radius);
      margin-bottom: 1.7em;
      padding: 1.6em 1.4em 1.1em 1.4em;
      background: #fcfcfc;
    }

    legend {
      font-weight: 700;
      font-size: 1.13em;
      color: var(--legend);
      margin-bottom: 0.6em;
      letter-spacing: 0.01em;
    }

    .form-row {
      display: flex;
      flex-wrap: wrap;
      gap: var(--gap);
      margin-bottom: 0.9em;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      flex: 1;
      min-width: 220px;
    }
    .form-group.col-md-6 { flex-basis: 0; flex: 1 1 44%; }
    .form-group.col-md-12 { flex-basis: 0; flex: 1 1 100%; }
    label {
      font-weight: 600;
      color: var(--label);
      margin-bottom: 0.25em;
      font-size: 1em;
      letter-spacing: 0.01em;
    }
    label span { color: var(--accent); font-weight: 800; }

    input[type="text"], input[type="email"], select, textarea {
      background: var(--input-bg);
      border: 1.2px solid #d6d7db;
      border-radius: 6px;
      font-size: 1.04em;
      padding: 0.63em 0.95em;
      margin-bottom: 0.2em;
      outline: none;
      transition: border .13s;
    }
    textarea { min-height: 63px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: #2586ff; }
    .form-check {
      margin-top: 1.5em;
      margin-bottom: 0.5em;
      display: flex;
      align-items: center;
      font-size: 0.97em;
    }
    .form-check-input {
      margin-right: 0.65em;
      accent-color: var(--accent);
    }
    .form-check-label a {
      color: var(--accent);
      text-decoration: underline;
    }

    .btn-group {
      text-align: center;
      margin-top: 1.5em;
    }
    .btn {
      background: var(--accent);
      color: #fff;
      font-size: 1.14em;
      border: none;
      border-radius: 7px;
      padding: 0.56em 2.4em;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 1px 6px rgba(220,52,52,0.08);
      letter-spacing: 0.03em;
      transition: background .16s;
    }
    .btn:hover {
      background: #a91b1b;
    }

    @media (max-width: 730px) {
      .container { padding: 1.1em 0.4em; }
      .form-row { flex-direction: column; gap: 0.8em; }
      .form-group { min-width: 0; }
    }
    @media (max-width: 490px) {
      h2 { font-size: 1.36em; }
      .container { padding: 0.4em 0.05em; }
      fieldset { padding: 0.7em 0.2em 0.8em 0.2em; }
      legend { font-size: 1em; }
    }