body {
        color: #f5f5f5;
        background: black;
        font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
          "Lucida Sans", Arial, sans-serif;
      }

      h1 {
        text-align: center;
        font-size: 38px;
        font-weight: 900;
        color: #ffffff;
        background: linear-gradient(90deg, #2c5364, #203a43, #0f2027);
        padding: 25px;
        border-radius: 20px;
        margin: 30px auto;
        width: 520px;
        border: 3px solid #4a90e2;
        box-shadow: 2px 4px 30px rgb(0, 157, 255);
      }

      form {
        width: 600px;
        margin: auto;
        padding: 10px;
      }

      fieldset {
        border: 3px solid #4a90e2;
        border-radius: 25px;
        padding: 30px;
        padding-right: 70px;
        background: linear-gradient(
          135deg,
          rgba(26, 26, 46, 0.95),
          rgba(22, 33, 62, 0.95)
        );
      }

      legend {
        color: #ffffff;
        font-weight: 900;
        font-size: 20px;
        padding: 8px 25px;
        background: linear-gradient(90deg, #4a90e2, #357abd);
        border-radius: 15px;
        border: 2px solid #5ca3e6;
      }

      table {
        width: 100%;
        border-radius: 0;
      }

      td {
        padding: 12px 8px;
      }

      label {
        color: #ffd500;
        font-weight: 900;
        font-size: 15px;
      }

      input,
      textarea,
      select {
        border-radius: 12px;
        padding: 14px;
        font-size: 15px;
      }

      input[type="text"],
      input[type="tel"],
      input[type="email"],
      input[type="password"],
      input[type="date"],
      input[type="number"] {
        width: 100%;
        background: linear-gradient(135deg, #2c5364, #203a43);
        color: #ffffff;
        font-weight: 600;
        border: 2px solid #4a90e2;
      }

      input:required {
        border: 2px solid #e74c3c;
      }

      input:optional {
        border: 2px dashed #27ae60;
      }

      input[readonly] {
        background: linear-gradient(90deg, #34495e, #2c3e50);
        color: #ecf0f1;
        font-weight: 800;
        border: 3px solid #7f8c8d;
      }

      input:focus {
        background: linear-gradient(135deg, #4a90e2, #357abd);
        font-weight: 700;
        color: #ffffff;
        border: 3px solid #5ca3e6;
      }

      textarea:focus,
      select:focus {
        background: linear-gradient(135deg, #4a90e2, #357abd);
        color: #ffffff;
        border: 3px solid #5ca3e6;
      }

      p {
        display: none;
        color: #ffffff;
        background: linear-gradient(90deg, #27ae60, #229954);
        font-family: monospace;
        font-size: 13px;
        padding: 10px 15px;
        border-radius: 10px;
        margin: 8px 0;
        border: 2px solid #2ecc71;
        font-weight: 600;
      }

      /* Show p (tooltip) when input focused */
      input:focus + p,
      input:focus ~ p {
        display: block;
      }

      img.valid,
      img.invalid {
        display: none;
        width: 20px;
        height: 20px;
        vertical-align: middle;
      }

      /* Show both valid and invalid images when field is focused */
      input[type="email"]:focus ~ img.valid,
      input[type="email"]:focus ~ img.invalid,
      input[name="age"]:focus ~ img.valid,
      input[name="age"]:focus ~ img.invalid {
        display: inline-block;
      }

      /* Success and error image styles */
      input[type="email"]:focus:valid ~ img.valid,
      input[name="age"]:focus:in-range:valid ~ img.valid {
        border: 3px solid #27ae60;
        border-radius: 50%;
        padding: 4px;
        background: linear-gradient(135deg, #27ae60, #2ecc71);
      }

      input[type="email"]:focus:invalid ~ img.invalid,
      input[name="age"]:focus:out-of-range:invalid ~ img.invalid {
        border: 3px solid #e74c3c;
        border-radius: 50%;
        padding: 4px;
        background: linear-gradient(135deg, #e74c3c, #c0392b);
      }

      input[type="radio"] {
        width: 22px;
        height: 22px;
        cursor: pointer;
        border: 3px solid #4a90e2;
      }

      input[type="radio"]:checked {
        width: 26px;
        height: 26px;
        border: 4px solid #5ca3e6;
        background: linear-gradient(135deg, #4a90e2, #357abd);
      }

      input[type="radio"]:checked + label {
        color: #5ca3e6;
        font-size: 18px;
        font-weight: 900;
      }

      input[type="file"] {
        background: linear-gradient(135deg, #2c5364, #203a43);
        color: #ffffff;
        border: 3px solid #4a90e2;
        cursor: pointer;
        width: 100%;
        font-weight: 600;
      }

      input[type="file"]:focus {
        background: linear-gradient(135deg, #4a90e2, #357abd);
        color: #ffffff;
        border: 3px solid #5ca3e6;
      }

      input[type="submit"],
      input[type="reset"] {
        background: linear-gradient(135deg, #4a90e2, #357abd);
        color: #ffffff;
        border: 3px solid #5ca3e6;
        border-radius: 25px;
        cursor: pointer;
        font-weight: 900;
        font-size: 18px;
        padding: 16px;
      }

      input[type="submit"]:focus,
      input[type="reset"]:focus {
        background: linear-gradient(135deg, #357abd, #2c5f8d);
        color: #ffffff;
        border: 4px solid #5ca3e6;
      }

      input[type="submit"]:hover,
      input[type="reset"]:hover {
        background: linear-gradient(135deg, #1082ec, #4a90e2);
        color: #ffffff;
        border: 3px solid #7db3e8;
      }

      input[type="submit"] {
        width: 100%;
        margin-top: 10px;
      }

      input[type="reset"] {
        width: 48%;
      }

      select {
        background: linear-gradient(135deg, #2c5364, #203a43);
        border: 2px solid #4a90e2;
        color: #ffffff;
        cursor: pointer;
        font-size: 15px;
        font-weight: 600;
        width: 100%;
      }

      textarea {
        background: linear-gradient(135deg, #2c5364, #203a43);
        border: 2px solid #4a90e2;
        color: #ffffff;
        font-weight: 600;
        font-size: 15px;
        width: 100%;
        resize: none;
      }