* {
      box-sizing: border-box;
    }
    body {
      font-family: 'Poppins', sans-serif;
      margin: 0;
      min-height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
      background: linear-gradient(135deg, #2c3e50, #121212);
      color: #f8f9fa;
      transition: background-color 0.4s ease, color 0.4s ease;
      padding: 20px;
    }
    .light-theme body {
      background: linear-gradient(135deg, #f0f2f5, #d6d8db);
      color: #343a40;
    }
    .review-container {
      background: rgba(255,255,255,0.1);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-radius: 20px;
      padding: 50px 40px;
      width: 800px;
      box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
      border: 1px solid rgba(255, 255, 255, 0.18);
      color: inherit;
      position: relative;
    }
    .light-theme .review-container {
      background: rgba(255,255,255,0.7);
      color: #343a40;
    }
    h2 {
      text-align: center;
      margin-bottom: 30px;
      font-size: 2rem;
      font-weight: 700;
    }
    .form-row {
      display: flex;
      gap: 15px;
      width: 100%;
    }
    .input-group {
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    label {
      margin-top: 8px;
      margin-bottom: 8px;
      font-weight: 600;
    }
    input, select, textarea {
      padding: 12px 15px;
      border-radius: 10px;
      border: 1px solid #555;
      background-color: rgba(44, 47, 51, 0.8);
      color: #f8f9fa;
      font-size: 1rem;
    }
    .light-theme input,
    .light-theme select,
    .light-theme textarea {
      background-color: #f8f9fa;
      border-color: #ccc;
      color: #343a40;
    }
    input::placeholder,
    select::placeholder,
    textarea::placeholder {
      color: #adb5bd;
    }
    .light-theme input::placeholder,
    .light-theme select::placeholder,
    .light-theme textarea::placeholder {
      color: #6c757d;
    }
    textarea {
      resize: none;
      height: 100px;
    }
    .submit-btn {
      margin-top: 20px;
      width: 100%;
      padding: 14px;
      font-weight: 700;
      font-size: 1.1rem;
      border: none;
      border-radius: 30px;
      background: linear-gradient(90deg, #007bff, #6610f2);
      color: white;
      cursor: pointer;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .submit-btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(102, 16, 242, 0.6);
    }
    #theme-toggle {
      position: absolute;
      top: 15px;
      right: 20px;
      background: rgba(255,255,255,0.2);
      border: none;
      border-radius: 30px;
      padding: 8px 16px;
      color: #f8f9fa;
      font-weight: 700;
      cursor: pointer;
      font-size: 0.9rem;
    }
    .light-theme #theme-toggle {
      background: rgba(0,0,0,0.1);
      color: #343a40;
    }
    .review-list {
      margin-top: 40px;
    }
    .review-card {
      background: rgba(255,255,255,0.1);
      border-radius: 15px;
      padding: 20px;
      margin-bottom: 20px;
      border: 1px solid rgba(255, 255, 255, 0.18);
    }
    .light-theme .review-card {
      background: rgba(255,255,255,0.7);
      color: #343a40;
    }
    .review-card h5 {
      margin: 0 0 10px;
      font-weight: 600;
      font-size: 1.25rem;
    }
    .review-card p {
      margin: 5px 0;
      font-size: 0.95rem;
    }
    .star-rating {
      color: #ffc107;
      font-size: 1.1rem;
    }
    .review-card a {
      color: #007bff;
      text-decoration: none;
    }
    .review-card a:hover {
      text-decoration: underline;
    }
    @media (max-width: 480px) {
      .review-container {
        width: 100%;
        padding: 40px 25px;
      }
      .form-row {
        flex-direction: column;
      }
    }