.section-intro {
  padding-top: var(--space-sm);
  margin-top: 48px;
  color: var(--color-subtle);
}

.slider-wrapper {
  position: relative;
  width: 80%;
  max-width: 800px;
  margin: 0 auto;
}
.slider {
  overflow: hidden;
  border-radius: 12px;
  aspect-ratio: 16/9;
  background: #000;
  position: relative;
}

.slider-track {
  display: flex;
  transition: transform 0.5s ease;
}

.slide {
  flex: 0 0 100%;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: top;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  padding: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  z-index: 5;
}

.nav svg {
  stroke: #fff;
  width: 24px;
  height: 24px;
}

.nav.prev {
  left: -56px;
}
.nav.next {
  right: -56px;
}

.nav:hover {
  background: rgba(0, 0, 0, 0.8);
  transform: translateY(-50%) scale(1.08);
}

.nav:hover svg {
  transform: scale(1.15);
}

@media (max-width: 600px) {
  .nav svg {
    width: 20px;
    height: 20px;
  }
  .nav.prev {
    left: -60px;
  }
  .nav.next {
    right: -60px;
  }
}

.prototype-card-section {
  padding: 56px 0;
  background: var(--color-bg);
  color: #e6eef6;
}

.prototype-card-wrap {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.prototype-card {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 28px;
  align-items: center;
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 6px 20px rgba(2, 6, 12, 0.6);
  overflow: hidden;
}

.proto-media {
  width: 100%;
  height: 100%;
  min-height: 260px;
  background: var(--color-bg);
  border-radius: 10px;
  overflow: hidden;
  display: block;
}

.proto-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transform-origin: center;
  transition: transform 0.45s ease;
}

.proto-content {
  padding: 4px 6px;
}

.proto-title {
  margin: 0 0 10px 0;
  font-size: 22px;
  line-height: 1.08;
  color: #ffffff;
}

.proto-sub {
  margin: 0 0 18px 0;
  color: #b9c9da;
  font-size: 15px;
  line-height: 1.5;
}

.proto-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 0.5rem 2rem;
  background: #fff;
  color: #061517;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(0, 179, 159, 0.14);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.btn-arrow {
  display: inline-block;
  transform: translateX(0);
  transition: transform 0.22s cubic-bezier(0.2, 0.9, 0.3, 1);
}
.btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 179, 159, 0.16);
}
.btn-cta:hover .btn-arrow {
  transform: translateX(6px);
}

.btn-ghost {
  display: inline-block;
  padding: 9px 14px;
  background: transparent;
  border-radius: 8px;
  color: #9fb0c5;
  text-decoration: none;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

@media (max-width: 880px) {
  .section-intro {
    padding-top: 0;
    margin-top: 40px;
    color: var(--color-subtle);
  }

  .prototype-card-wrap .section-intro {
    margin-top: 0;
  }
  .prototype-card {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 16px;
  }
  .proto-media {
    min-height: 220px;
    border-radius: 12px;
  }
  .proto-title {
    font-size: 20px;
  }
}

@media (max-width: 420px) {
  .proto-sub {
    font-size: 14px;
  }
  .btn-cta {
    padding: 10px 14px;
  }
}