* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "DM Sans", Arial, sans-serif;
  background: #f6f7f9;
  color: #14171f;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px max(18px, calc((100vw - 1180px) / 2));
  background: #ffffff;
  border-bottom: 1px solid #e2e6ee;
}

.brand-link,
.back-link {
  color: #14171f;
  font-weight: 800;
  text-decoration: none;
}

.brand-link {
  font-size: 26px;
}

.back-link {
  font-size: 15px;
}

.model-page {
  width: min(1180px, calc(100% - 32px));
  margin: 42px auto 78px;
}

.model-title {
  margin: 0 0 30px;
  text-align: center;
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 800;
}

.model-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 34px;
  align-items: start;
}

.gallery,
.details-panel {
  border: 1px solid #e2e6ee;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(20, 23, 31, 0.08);
}

.gallery {
  overflow: hidden;
}

.gallery-frame {
  position: relative;
  display: grid;
  place-items: center;
  height: min(78vh, 820px);
  min-height: 680px;
  background: #f0f3f8;
  overflow: hidden;
}

.gallery-track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 520ms ease;
}

.gallery-slide {
  display: grid;
  place-items: center;
  flex: 0 0 100%;
  padding: 8px;
}

.gallery-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.zoom-button {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 3;
  min-width: 82px;
  height: 40px;
  border: 0;
  border-radius: 6px;
  background: rgba(20, 23, 31, 0.92);
  color: #ffffff;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

.gallery-button {
  position: absolute;
  top: 50%;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: #14171f;
  font-size: 26px;
  font-weight: 800;
  cursor: pointer;
  transform: translateY(-50%);
  box-shadow: 0 10px 24px rgba(20, 23, 31, 0.18);
}

.gallery-button.previous {
  left: 16px;
}

.gallery-button.next {
  right: 16px;
}

.gallery-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 16px;
}

.gallery-dot {
  width: 10px;
  height: 10px;
  border: 0;
  border-radius: 50%;
  background: #aab3c2;
  cursor: pointer;
}

.gallery-dot.active {
  width: 26px;
  border-radius: 999px;
  background: #14171f;
}

.details-panel {
  padding: 30px;
}

.details-title {
  margin: 0 0 18px;
  font-size: 28px;
  font-weight: 800;
}

.spec-list {
  display: grid;
  gap: 12px;
  margin: 0 0 28px;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid #e2e6ee;
}

.spec-label {
  color: #687284;
  font-weight: 800;
}

.spec-value {
  color: #14171f;
  font-weight: 800;
  text-align: right;
}

.lock-title {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 800;
}

.lock-list {
  display: grid;
  gap: 10px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.lock-list li {
  padding: 11px 12px;
  border-radius: 6px;
  background: #f0f3f8;
  font-weight: 700;
}

.enquiry-title {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 800;
}

.action-buttons {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.action-button {
  display: grid;
  place-items: center;
  min-height: 50px;
  border-radius: 6px;
  color: #ffffff;
  font-size: 16px;
  font-weight: 800;
  text-decoration: none;
}

.call-button {
  background: #14171f;
}

.whatsapp-button {
  background: #168a47;
}

.zoom-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(20, 23, 31, 0.86);
}

.zoom-overlay[hidden] {
  display: none;
}

.zoom-close {
  position: absolute;
  top: 18px;
  right: 18px;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: #ffffff;
  color: #14171f;
  font-size: 24px;
  font-weight: 800;
  cursor: pointer;
}

.zoom-image {
  display: block;
  max-width: min(96vw, 1180px);
  max-height: 92vh;
  object-fit: contain;
  background: #ffffff;
}

@media (max-width: 820px) {
  .page-header {
    padding: 20px 16px;
  }

  .model-page {
    width: calc(100% - 24px);
    margin-top: 30px;
  }

  .model-layout {
    grid-template-columns: 1fr;
  }

  .details-panel {
    padding: 24px 18px;
  }

  .gallery-frame {
    height: 72vh;
    min-height: 460px;
  }

  .zoom-button {
    min-width: 70px;
    height: 36px;
    font-size: 13px;
  }
}