/* ====== Ogólny wygląd ====== */
    body {
      font-family: "Segoe UI", Roboto, sans-serif;
      background: #f6f8fa;
      color: #333;
      margin: 0;
      padding: 40px;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    h1 {
      font-size: 1.8rem;
      color: #222;
      margin-bottom: 20px;
    }

    /* ====== Formularz ====== */
    form {
      background: #fff;
      padding: 20px 25px;
      border-radius: 10px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      margin-bottom: 30px;
      display: flex;
      gap: 15px;
      align-items: center;
      flex-wrap: wrap;
    }

    form input[type="text"],
    form input[type="date"] {
      padding: 10px 14px;
      border-radius: 6px;
      border: 1px solid #ccc;
      font-size: 1rem;
    }

    form button {
      background: #0078d7;
      color: white;
      border: none;
      padding: 10px 18px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 1rem;
      transition: background 0.3s;
    }

    form button:hover {
      background: #005ea6;
    }

    /* ====== Tabela ====== */
    table {
      border-collapse: collapse;
      width: 80%;
      max-width: 1000px;
      background: #fff;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      border-radius: 10px;
      overflow: hidden;
    }

    th, td {
      padding: 14px 18px;
      text-align: left;
    }

    th {
      background: #0078d7;
      color: white;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    tr:nth-child(even) {
      background: #f4f6f8;
    }

    tr:hover {
      background: #e8f1fb;
      transition: background 0.3s;
    }

    td.dni {
      font-weight: bold;
      text-align: left;
      color: #0078d7;
    }

    .minelo {
      color: #d9534f;
    }

    .bledna {
      color: #999;
      font-style: italic;
    }

    button.usun {
      background: #d9534f;
      color: white;
      border: none;
      padding: 6px 10px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 0.9rem;
      transition: background 0.3s;
    }

    button.usun:hover {
      background: #b52b27;
    }

    footer {
      margin-top: 30px;
      font-size: 0.9rem;
      color: #777;
    }