:root {
  --tan: #d80b32;
  --tan-dark: #a80725;
  --tan-tint: #fdf1f3;
  --tan-light: #ff5470;
  --text-grey: #676c74;
  --nav-grey: #2c3138;
  --hairline: #e4e6e9;
  --surface: #f8f9fa;
  --navy: #1a1d23;
}

/* =====================================================
   1. PAGE BANNER (EXACT MATCH WITH APPLICATION & PRODUCT)
   ===================================================== */
.page-banner {
  position: relative;
  overflow: hidden;
  min-height: clamp(280px, 26vw, 500px);
  display: flex;
  align-items: center;
  padding: 0;
  background-color: #6f7378;
  background-image: url(../images/jakarta-bekasi-indonesia-march-26-600nw-2759234433.webp);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  text-align: left;
  color: #fff;
}

/* Dark Wash Overlay for Contrast */
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26, 29, 35, 0.75), rgba(26, 29, 35, 0.85));
}

.page-banner>.container-xl {
  z-index: 1;
  width: 100%;
  padding-block: 50px 30px;
}

.page-banner-title {
  font-size: 46px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 0;
  color: #ffffff;
}

.page-banner-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 680px;
  margin: 10px 0 0;
  line-height: 1.5;
}

.page-banner nav[aria-label="Breadcrumb"] {
  position: absolute;
  top: 20px;
  right: 15px;
  z-index: 2;
}

.page-crumbs {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  font-weight: 600;
}

.page-crumbs a {
  color: rgba(255, 255, 255, 0.78);
  transition: color 0.2s ease;
  text-decoration: none;
}

.page-crumbs a:hover {
  color: #fff;
}

.page-crumbs li[aria-current] {
  color: var(--tan-light);
}

.page-crumbs li+li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(255, 255, 255, 0.45);
}

@media (max-width: 767.98px) {
  .page-banner {
    min-height: 220px;
  }

  .page-banner-title {
    font-size: 28px;
  }

  .page-banner nav[aria-label="Breadcrumb"] {
    position: relative;
    top: auto;
    right: auto;
    margin-top: 10px;
  }

  .page-crumbs {
    justify-content: flex-start;
    font-size: 13px;
  }
}

/* =====================================================
   2. APPLICATION INNER DETAIL SHOWCASE
   ===================================================== */
.app-detail-section {
  padding: 60px 0;
  background-color: #fcfcfc;
}

.back-nav-container {
  margin-bottom: 25px;
}

.btn-back-applications {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--nav-grey);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  padding: 9px 20px;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: all 0.25s ease-in-out;
}

.btn-back-applications i {
  font-size: 14px;
  transition: transform 0.25s ease;
}

.btn-back-applications:hover {
  color: var(--tan);
  background-color: var(--tan-tint);
  border-color: rgba(216, 11, 50, 0.3);
  box-shadow: 0 4px 14px rgba(216, 11, 50, 0.12);
}

.btn-back-applications:hover i {
  transform: translateX(-4px);
}

.btn-back-applications-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--tan);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  padding: 10px 24px;
  background-color: #ffffff;
  border: 2px solid var(--tan);
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all 0.25s ease-in-out;
}

.btn-back-applications-outline i {
  font-size: 14px;
  transition: transform 0.25s ease;
}

.btn-back-applications-outline:hover {
  color: #ffffff;
  background-color: var(--tan);
  box-shadow: 0 4px 15px rgba(216, 11, 50, 0.25);
}

.btn-back-applications-outline:hover i {
  transform: translateX(-4px);
}

.app-detail-img-box {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  background: #ffffff;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--hairline);
}

.app-detail-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.app-detail-img-box:hover img {
  transform: scale(1.04);
}

.app-detail-badge {
  display: inline-block;
  background: var(--tan-tint);
  color: var(--tan);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 12px;
}

.app-detail-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--nav-grey);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.app-detail-subtitle {
  font-size: 18px;
  color: var(--tan);
  font-weight: 600;
  margin-bottom: 20px;
  line-height: 1.4;
}

.app-detail-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-grey);
  margin-bottom: 25px;
}

/* Recommended Materials Box */
.recommended-materials-box {
  background: #ffffff;
  border-radius: 12px;
  padding: 20px 24px;
  border: 1px solid #eef0f3;
  margin-bottom: 25px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.recommended-materials-box h5 {
  font-size: 16px;
  font-weight: 700;
  color: var(--nav-grey);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.recommended-materials-box h5 i {
  color: var(--tan);
}

.material-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.material-tag {
  background: var(--tan-tint);
  color: var(--tan-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid rgba(216, 11, 50, 0.15);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Key Features / Performance Highlights List */
.key-highlights-list {
  list-style: none;
  padding: 0;
  margin: 0 0 30px;
}

.key-highlights-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--nav-grey);
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.5;
}

.key-highlights-list li i {
  color: var(--tan);
  font-size: 16px;
  margin-top: 3px;
  flex-shrink: 0;
}

/* =====================================================
   3. CUSTOM EXTRA DETAILS & ENGINEERING SPECS
   ===================================================== */
.app-extra-details {
  /* margin-top: 50px; */
  padding-top: 40px;
}

.extra-detail-card {
  background: #ffffff;
  border-radius: 14px;
  padding: 35px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  border: 1px solid #eef0f3;
  margin-bottom: 30px;
}

.extra-detail-heading {
  font-size: 24px;
  font-weight: 700;
  color: var(--nav-grey);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}

.extra-detail-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 50px;
  height: 3px;
  background: var(--tan);
  border-radius: 2px;
}

.extra-detail-content {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-grey);
}

.extra-detail-content p {
  margin-bottom: 16px;
}

.extra-detail-content ul {
  padding-left: 20px;
  margin-bottom: 20px;
}

.extra-detail-content li {
  margin-bottom: 10px;
}

/* =====================================================
   4. FEATURE CARDS GRID (PROCESS / LAYERS / ADVANTAGES)
   ===================================================== */
.app-feature-box {
  background: #ffffff;
  border-radius: 12px;
  padding: 26px;
  border: 1px solid #eef0f3;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
  height: 100%;
  transition: all 0.3s ease;
}

.app-feature-box:hover {
  transform: translateY(-4px);
  border-color: rgba(216, 11, 50, 0.3);
  box-shadow: 0 10px 25px rgba(216, 11, 50, 0.08);
}

.app-feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--tan-tint);
  color: var(--tan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}

.app-feature-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--nav-grey);
  margin-bottom: 10px;
}

.app-feature-text {
  font-size: 14.5px;
  color: var(--text-grey);
  line-height: 1.65;
  margin: 0;
}

/* Engineering Highlight Cards (Image Top + Sub-Highlight + Content) */
.eng-highlight-card {
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid #eef0f3;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.eng-highlight-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 28px rgba(216, 11, 50, 0.12);
  border-color: rgba(216, 11, 50, 0.3);
}

.eng-card-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: #f4f5f7;
}

.eng-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.eng-highlight-card:hover .eng-card-img {
  transform: scale(1.06);
}

.eng-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(26, 29, 35, 0.82);
  backdrop-filter: blur(4px);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 4px 10px;
  border-radius: 20px;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.eng-card-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.eng-card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--nav-grey);
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.eng-card-highlight {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--tan-dark);
  background: var(--tan-tint);
  padding: 5px 12px;
  border-radius: 6px;
  margin-bottom: 14px;
  width: fit-content;
  border: 1px solid rgba(216, 11, 50, 0.12);
}

.eng-card-highlight i {
  color: var(--tan);
  font-size: 13px;
}

.eng-card-text {
  font-size: 14.5px;
  color: var(--text-grey);
  line-height: 1.65;
  margin: 0;
}

/* Layer / Application Step Cards */
.layer-step-card {
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid #eef0f3;
  padding: 24px;
  height: 100%;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.layer-step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
}

.layer-step-num {
  font-size: 13px;
  font-weight: 800;
  color: var(--tan);
  background: var(--tan-tint);
  padding: 4px 12px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 12px;
}

.layer-step-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--nav-grey);
  margin-bottom: 10px;
}

.layer-step-desc {
  font-size: 14.5px;
  color: var(--text-grey);
  line-height: 1.6;
  margin: 0;
}

/* =====================================================
   5. TECHNICAL SPECIFICATIONS TABLE
   ===================================================== */
.app-specs-table-wrapper {
  background: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #eef0f3;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  margin-top: 25px;
  margin-bottom: 35px;
}

.app-specs-table {
  width: 100%;
  margin: 0;
  border-collapse: collapse;
}

.app-specs-table th {
  background: var(--navy);
  color: #ffffff;
  font-weight: 700;
  font-size: 14.5px;
  padding: 15px 20px;
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.app-specs-table td {
  padding: 14px 20px;
  font-size: 14.5px;
  color: var(--nav-grey);
  border-bottom: 1px solid #f0f2f5;
}

.app-specs-table tr:last-child td {
  border-bottom: none;
}

.app-specs-table tr:nth-child(even) td {
  background: #fcfdfe;
}

.app-specs-table td strong {
  color: var(--navy);
  font-weight: 600;
}

/* =====================================================
   6. CUSTOM CTA BANNER BOX
   ===================================================== */
.app-cta-box {
  background: linear-gradient(135deg, #1a1d23 0%, #2c3138 100%);
  border-radius: 14px;
  padding: 35px 30px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}

.app-cta-box::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(216, 11, 50, 0.25) 0%, rgba(216, 11, 50, 0) 70%);
  pointer-events: none;
}

.app-cta-text h4 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}

.app-cta-text p {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14.5px;
  line-height: 1.5;
}

.btn-cta-contact {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--tan);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  white-space: nowrap;
  border: 2px solid var(--tan);
}

.btn-cta-contact:hover {
  background: var(--tan-dark);
  border-color: var(--tan-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(216, 11, 50, 0.35);
}

/* =====================================================
   7. RESPONSIVE BREAKPOINTS
   ===================================================== */
@media (max-width: 1199.98px) {
  .app-detail-title {
    font-size: 32px;
  }

  .app-detail-subtitle {
    font-size: 17px;
  }
}

@media (max-width: 991.98px) {
  .app-detail-section {
    padding: 45px 0;
  }

  .app-detail-title {
    font-size: 28px;
  }

  .app-detail-subtitle {
    font-size: 16px;
  }

  .app-detail-desc {
    font-size: 15px;
  }

  .app-detail-img-box {
    aspect-ratio: 16 / 10;
    margin-bottom: 10px;
  }
}

@media (max-width: 767.98px) {
  .app-detail-section {
    padding: 35px 0;
  }

  .app-detail-title {
    font-size: 24px;
    margin-bottom: 10px;
  }

  .app-detail-subtitle {
    font-size: 15px;
    margin-bottom: 16px;
  }

  .app-detail-desc {
    font-size: 14.5px;
    line-height: 1.65;
  }

  .app-cta-box {
    flex-direction: column;
    text-align: center;
    padding: 25px 20px;
    gap: 18px;
  }

  .btn-cta-contact {
    width: 100%;
    justify-content: center;
  }

  .extra-detail-card {
    padding: 25px 20px;
  }

  .extra-detail-heading {
    font-size: 20px;
  }
}

@media (max-width: 575.98px) {
  .back-nav-container {
    margin-bottom: 18px;
  }

  .btn-back-applications,
  .btn-back-applications-outline {
    font-size: 13.5px;
    padding: 8px 18px;
  }

  .app-detail-badge {
    font-size: 11.5px;
    padding: 5px 12px;
  }

  .app-detail-title {
    font-size: 22px;
  }

  .app-detail-subtitle {
    font-size: 14.5px;
  }

  .material-tag {
    font-size: 12px;
    padding: 4px 10px;
  }

  .extra-detail-card {
    padding: 20px 15px;
  }

  .extra-detail-heading {
    font-size: 18px;
  }

  .extra-detail-content {
    font-size: 14px;
    line-height: 1.7;
  }

  .app-specs-table th,
  .app-specs-table td {
    padding: 10px 12px;
    font-size: 13px;
  }
}