* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html,
    body {
      overflow-x: hidden;
      width: 100%;
      font-family: Arial, sans-serif;
    }

    .container {
      width: 90%;
      max-width: 1200px;
      margin: auto;
    }

    .product-details {
      padding: 40px 0;
    }

    .product-box {
      display: flex;
      gap: 30px;
      flex-wrap: wrap;
      align-items: flex-start;
    }

    .product-left,
    .product-right {
      flex: 1;
      min-width: 300px;
      max-width: 100%;
    }

    
    .main-image-wrapper {
      width: 100%;
      overflow: hidden;
      border-radius: 10px;
    }

    .product-left #mainImage {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 10px;
      transition: 0.4s;
    }

    
    .thumbs {
      display: flex;
      gap: 10px;
      margin-top: 10px;
      flex-wrap: wrap;
    }

    .thumbs img {
      width: 80px;
      height: 80px;
      object-fit: cover;
      cursor: pointer;
      border-radius: 6px;
      border: 2px solid #ddd;
      transition: 0.3s;
    }

    .thumbs img:hover {
      border-color: #0099cc;
    }

    
    .product-right h2 {
      margin-bottom: 15px;
      font-size: 32px;
    }

    .product-right p {
      line-height: 1.8;
      margin-bottom: 20px;
      color: #555;
    }

    
    .spec-table {
      width: 100%;
      border-collapse: collapse;
    }

    .spec-table th,
    .spec-table td {
      border: 1px solid #ddd;
      padding: 12px;
      text-align: left;
    }

    
    .tab-buttons {
      display: flex;
      gap: 5px;
      flex-wrap: wrap;
      margin-top: 40px;
    }

    .tab-buttons button {
      padding: 5px 15px;
      border: none;
      background: #f5f5f5;
      color: #555;
      cursor: pointer;
      border-radius: 5px;
      transition: 0.3s;
      font-size: 12px;
    }

    .tab-buttons button:hover {
      background: #555;
      color: white;
    }

    .tab-content {
      margin-top: 20px;
      width: 100%;
      overflow: hidden;
    }

    
    .table-image-scroll {
      width: 100%;
      overflow-x: auto;
      overflow-y: hidden;
      -webkit-overflow-scrolling: touch;
      border: 1px solid #ddd;
      border-radius: 6px;
      background: #fff;
    }

    .table-image-scroll img {
      display: block;
      width: auto;
      max-width: none;
      min-width: 900px;
    }

    .menu>li {
      margin: 15px 0px;
    }

    .custom-btn-group {
      display: flex;
      gap: 15px;
      width: 100%;
    }

    .custom-btn-group .btn {
      flex: 1;
      text-align: center;
    }

    
    @media(max-width:767px) {

      .custom-btn-group {
        flex-direction: column;
      }

      .custom-btn-group .btn {
        width: 100%;
      }

    }

    
    @media(max-width:768px) {

      .product-box {
        flex-direction: column;
      }

      .product-left,
      .product-right {
        width: 100%;
        min-width: 100%;
      }

      .product-right h2 {
        font-size: 24px;
      }

      .tab-buttons button {
        flex: 1 1 45%;
      }

      .thumbs img {
        width: 65px;
        height: 65px;
      }

    }




    /* ===================================
   OPTIPRIME BROCHURE POPUP
=================================== */

.brochure-popup,
.brochure-success-popup {
  position: fixed;
  inset: 0;

  display: none;

  justify-content: center;
  align-items: center;

  padding: 20px;

  background: rgba(0, 0, 0, 0.75);

  z-index: 99999;

  overflow-y: auto;
}


/* Show Popup */

.brochure-popup.active,
.brochure-success-popup.active {
  display: flex;
}


/* Main Popup Box */

.brochure-popup-box {
  position: relative;

  width: 100%;
  max-width: 500px;

  padding: 35px;

  background: #ffffff;

  border-radius: 14px;

  box-shadow:
    0 15px 50px rgba(0, 0, 0, 0.35);

  animation: brochurePopupAnimation 0.3s ease;
}


/* Popup Animation */

@keyframes brochurePopupAnimation {

  from {
    opacity: 0;
    transform: translateY(25px) scale(0.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

}


/* Close Button */

.brochure-close-btn {
  position: absolute;

  top: 10px;
  right: 15px;

  width: 38px;
  height: 38px;

  border: none;

  background: transparent;

  color: #333333;

  font-size: 32px;

  line-height: 35px;

  cursor: pointer;
}


/* Header */

.brochure-popup-header {
  margin-bottom: 25px;

  text-align: center;
}


.brochure-popup-header h3 {
  margin: 0 0 10px;

  color: #890c0b;

  font-size: 25px;

  font-weight: 700;
}


.brochure-popup-header p {
  margin: 0;

  color: #555555;

  font-size: 15px;

  line-height: 1.6;
}


/* Form Group */

.brochure-form-group {
  margin-bottom: 18px;
}


.brochure-form-group label {
  display: block;

  margin-bottom: 7px;

  color: #333333;

  font-size: 14px;

  font-weight: 600;
}


.brochure-form-group label span {
  color: #890c0b;
}


/* Input */

.brochure-form-group input {
  width: 100%;

  height: 48px;

  padding: 10px 14px;

  border: 1px solid #dddddd;

  border-radius: 7px;

  outline: none;

  font-size: 15px;

  box-sizing: border-box;

  transition: 0.3s;
}


.brochure-form-group input:focus {
  border-color: #890c0b;

  box-shadow:
    0 0 0 3px rgba(137, 12, 11, 0.1);
}


/* Submit Button */

.brochure-submit-btn {
  width: 100%;

  min-height: 50px;

  border: none;

  border-radius: 7px;

  background: #890c0b;

  color: #ffffff;

  font-size: 15px;

  font-weight: 700;

  cursor: pointer;

  transition: 0.3s;
}


.brochure-submit-btn:hover {
  background: #650908;
}


.brochure-submit-btn:disabled {
  opacity: 0.7;

  cursor: not-allowed;
}


/* ===================================
   SUCCESS POPUP
=================================== */

.brochure-success-box {
  width: 100%;
  max-width: 430px;

  padding: 40px 30px;

  background: #ffffff;

  border-radius: 14px;

  text-align: center;

  box-shadow:
    0 15px 50px rgba(0, 0, 0, 0.35);

  animation: brochurePopupAnimation 0.3s ease;
}


.success-icon {
  display: flex;

  width: 70px;
  height: 70px;

  margin: 0 auto 18px;

  justify-content: center;
  align-items: center;

  border-radius: 50%;

  background: #198754;

  color: #ffffff;

  font-size: 38px;

  font-weight: bold;
}


.brochure-success-box h3 {
  margin-bottom: 12px;

  color: #198754;

  font-size: 24px;
}


.brochure-success-box p {
  color: #555555;

  line-height: 1.7;
}


.download-message {
  color: #890c0b !important;

  font-weight: 700;
}


.success-close-btn {
  min-width: 120px;

  margin-top: 10px;

  padding: 12px 25px;

  border: none;

  border-radius: 6px;

  background: #890c0b;

  color: #ffffff;

  font-weight: 700;

  cursor: pointer;
}


/* Mobile */

@media (max-width: 576px) {

  .brochure-popup-box {
    padding: 30px 20px;
  }

  .brochure-popup-header h3 {
    padding-right: 25px;

    font-size: 21px;
  }

}


/* ===================================
SENTINEL SERIES BENEFITS SECTION
=================================== */

    #tab1.tabs {
      padding: 35px 25px;
      background: #f7f9fc;
      border-radius: 16px;
    }

    /* Section Heading */
    .benefits-header {
      max-width: 850px;
      margin: 0 auto 35px;
      text-align: center;
    }

    .benefits-tag {
      display: inline-block;
      padding: 7px 16px;
      margin-bottom: 12px;
      color: #ffffff;
      background: #890c0b;
      border-radius: 30px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1px;
    }

    .benefits-header h3 {
      margin: 0 0 12px;
      color: #172033;
      font-size: 32px;
      font-weight: 700;
      line-height: 1.25;
    }

    .benefits-header p {
      max-width: 760px;
      margin: auto;
      color: #687083;
      font-size: 16px;
      line-height: 1.8;
    }

    /* Benefits Grid */
    .benefits-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 22px;
      max-width: 1200px;
      margin: 0 auto;
    }

    /* Individual Card */
    .benefit-card {
      display: flex;
      align-items: flex-start;
      gap: 18px;
      padding: 25px;
      background: #ffffff;
      border: 1px solid #e8ebf0;
      border-radius: 14px;
      box-shadow: 0 5px 20px rgba(20, 35, 60, 0.06);
      transition: all 0.35s ease;
    }

    .benefit-card:hover {
      transform: translateY(-6px);
      border-color: #890c0b;
      box-shadow: 0 14px 30px rgba(20, 35, 60, 0.13);
    }

    /* Icon Box */
    .benefit-icon {
      display: flex;
      min-width: 58px;
      width: 58px;
      height: 58px;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      background: linear-gradient(135deg, #890c0b, #5a0808);
      border-radius: 13px;
      font-size: 23px;
      box-shadow: 0 7px 18px rgba(227, 30, 36, 0.25);
    }

    .benefit-content {
      flex: 1;
    }

    .benefit-content h4 {
      margin: 0 0 8px;
      color: #172033;
      font-size: 19px;
      font-weight: 700;
    }

    .benefit-content p {
      margin: 0;
      color: #687083;
      font-size: 14.5px;
      line-height: 1.7;
    }

    /* Tablet */
    @media (max-width: 991px) {

      .benefits-grid {
        grid-template-columns: 1fr;
      }

      .benefits-header h3 {
        font-size: 28px;
      }

    }

    /* Mobile */
    @media (max-width: 576px) {

      #tab1.tabs {
        padding: 25px 15px;
      }

      .benefits-header {
        margin-bottom: 25px;
      }

      .benefits-header h3 {
        font-size: 23px;
      }

      .benefits-header p {
        font-size: 14px;
        line-height: 1.7;
      }

      .benefits-grid {
        gap: 15px;
      }

      .benefit-card {
        gap: 13px;
        padding: 18px 15px;
      }

      .benefit-icon {
        min-width: 48px;
        width: 48px;
        height: 48px;
        font-size: 19px;
        border-radius: 11px;
      }

      .benefit-content h4 {
        font-size: 16px;
      }

      .benefit-content p {
        font-size: 13px;
        line-height: 1.6;
      }

    }