body {
      font-family: 'Segoe UI', sans-serif;
      margin: 0;
      padding: 20px;
      background: linear-gradient(to right, #e0f7fa, #f1f8ff);
    }

    h1 {
      text-align: center;
      font-size: 2rem;
      color: #333;
      margin-bottom: 30px;
    }

    .teacher-card {
      background: #fff;
      border-radius: 12px;
      padding: 20px;
      margin-bottom: 20px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      transition: all 0.3s ease-in-out;
    }

    .teacher-card:hover {
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
    }

    .teacher-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .teacher-header h2 {
      margin: 0;
      font-size: 1.25rem;
      color: #2b6cb0;
    }

    .teacher-subinfo {
      font-size: 0.9rem;
      color: #555;
      margin-top: 4px;
    }

    .stars {
      color: #f6ad55;
      font-size: 1.2rem;
    }

    .report-toggle {
      margin-top: 15px;
      cursor: pointer;
      font-weight: 600;
      color: #3182ce;
      background: none;
      border: none;
      font-size: 0.95rem;
    }

    .report-text {
      display: none;
      margin-top: 10px;
      padding: 12px;
      background: #ebf8ff;
      border-left: 4px solid #3182ce;
      border-radius: 8px;
      font-size: 0.9rem;
      color: #333;
    }

    @media (max-width: 600px) {
      .teacher-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
      }
    }