/* RESET */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: "Segoe UI", sans-serif;
    }

    body {
      background: #f9faff;
      color: #333;
      overflow-x: hidden;
    }

    /* HOME BUTTON */
    .home-btn {
      position: fixed;
      top: 20px;
      left: 20px;
      background: #170b85;
      color: #fff;
      padding: 10px 18px;
      border-radius: 30px;
      font-weight: 600;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      transition: all 0.3s ease;
      z-index: 1100;
    }

    .home-btn:hover {
      background: #0056b3;
      transform: translateY(-3px);
    }

    /* BACKGROUND SHAPES */
    .bg-shape {
      position: absolute;
      border-radius: 50%;
      filter: blur(100px);
      opacity: 0.6;
      z-index: -1;
      animation: float 8s infinite alternate ease-in-out;
    }

    .shape1 {
      width: 300px;
      height: 300px;
      background: #1602c7;
      top: -100px;
      left: -100px;
    }

    .shape2 {
      width: 300px;
      height: 300px;
      background: #e7073f;
      bottom: -120px;
      right: -120px;
    }

    @keyframes float {
      from { transform: translateY(0px); }
      to { transform: translateY(-30px); }
    }

    /* HEADER */
    header {
      background: #170b85;
      color: #fff;
      padding: 16px;
      text-align: center;
      box-shadow: 0 3px 6px rgba(0,0,0,.1);
    }
    header h2 {
      margin: 0;
      font-size: 24px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    /* Feedback container */
    .feedback-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 22px;
      padding: 28px 18px 40px;
    }

    /* Feedback card */
    .feedback-card {
      width: 320px;
      background: #fff;
      border-radius: 14px;
      box-shadow: 0 6px 16px rgba(0,0,0,.08);
      padding: 20px 18px;
      transition: transform .25s ease, box-shadow .25s ease;
    }
    
    .feedback-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 24px rgba(0,0,0,.14);
    }
    
    .feedback-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 15px;
      padding-bottom: 10px;
      border-bottom: 1px solid #f0f0f0;
    }
    
    .feedback-id {
      color: #0a66ff;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    .feedback-date {
      color: #666;
      font-size: 13px;
    }
    
    .feedback-content {
      margin-bottom: 15px;
      line-height: 1.5;
    }
    
    .feedback-rating {
      display: flex;
      gap: 5px;
      margin-bottom: 15px;
    }
    
    .star {
      color: #ffc107;
    }
    
    .feedback-department {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 10px;
      background: #e9ecef;
      border-radius: 20px;
      font-size: 13px;
      color: #495057;
    }
    
    .feedback-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 15px;
      padding-top: 10px;
      border-top: 1px solid #f0f0f0;
    }
    
    .feedback-user {
      font-size: 13px;
      color: #6c757d;
      display: flex;
      align-items: center;
      gap: 5px;
    }

    /* Empty state */
    .no-data {
      width: 100%;
      text-align: center;
      font-size: 18px;
      color: #666;
      padding: 40px 0;
    }

    /* Footer */
    footer { 
      text-align: center; 
      padding: 20px; 
    }
    
    .back-btn {
      display: inline-block;
      padding: 10px 20px;
      background: #170b85;
      color: #fff; 
      border-radius: 25px;
      text-decoration: none; 
      font-weight: 700;
      transition: background .25s ease;
    }
    
    .back-btn:hover { 
      background: #0056b3; 
    }

    /* Filter section */
    .filter-section {
      display: flex;
      justify-content: center;
      gap: 15px;
      padding: 20px;
      background: #fff;
      margin: 0 auto;
      max-width: 1000px;
      border-radius: 14px;
      box-shadow: 0 4px 12px rgba(0,0,0,.08);
      flex-wrap: wrap;
    }
    
    .filter-control {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    
    .filter-control label {
      font-size: 14px;
      font-weight: 600;
      color: #495057;
    }
    
    .filter-control select {
      padding: 8px 12px;
      border: 1px solid #ced4da;
      border-radius: 6px;
      background: #fff;
      color: #495057;
    }

    /* ========= RESPONSIVENESS ========= */

    /* Tablets (≤1024px) */
    @media (max-width: 1024px) {
      header h2 {
        font-size: 20px;
      }

      .feedback-card {
        width: 280px;
      }
    }

    /* Mobile (≤768px) */
    @media (max-width: 768px) {
      header {
        padding: 12px;
      }
      
      header h2 {
        font-size: 18px;
      }

      .feedback-container {
        gap: 16px;
        padding: 20px 12px 30px;
      }

      .feedback-card {
        width: 100%;
        max-width: 400px;
      }

      .filter-section {
        flex-direction: column;
        padding: 15px;
      }
      
      .filter-control {
        width: 100%;
      }
    }

    /* Small Mobile (≤480px) */
    @media (max-width: 480px) {
      header h2 {
        font-size: 16px;
      }

      .feedback-card {
        padding: 14px;
        border-radius: 10px;
      }
      
      .feedback-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
      
      .feedback-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
      }
    }