/* ───────────────────────────────────────────────────────────
   PLATFORMS CSS (INTERACTIVE EXPLORER)
   ─────────────────────────────────────────────────────────── */

.platforms {
  padding: var(--space-24) 0;
  background-color: var(--color-deep-navy);
  color: var(--color-white);
}

.platforms__header {
  margin-bottom: 4rem;
}

.platforms__headline {
  margin-top: 1rem;
  font-weight: var(--font-black);
}

.platforms__explorer-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 6rem;
}

/* Nav */
.platforms__nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.platforms__nav-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.4);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast), padding-left var(--transition-base);
  width: 100%;
}

.platforms__nav-item:hover {
  color: rgba(255,255,255,0.8);
}

.platforms__nav-item.is-active {
  color: var(--color-white);
  border-bottom-color: var(--color-enterprise-blue);
  padding-left: 1.5rem;
}

.platforms__nav-num {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  letter-spacing: 0.1em;
  color: var(--color-enterprise-blue);
}

.platforms__nav-name {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Active Panel */
.platforms__active-panel {
  background: var(--color-white);
  color: var(--color-black);
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  border-radius: 2px;
}

.platforms__panel-images {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.platforms__panel-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 800ms var(--ease-luxury), transform 800ms var(--ease-luxury);
}

.platforms__panel-img.is-active {
  opacity: 1;
  transform: scale(1);
  z-index: 2;
}

.platforms__panel-content-wrap {
  position: relative;
  min-height: 150px;
}

.platforms__panel-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 400ms var(--ease-smooth), transform 400ms var(--ease-smooth);
}

.platforms__panel-content.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  position: relative;
}

.platforms__panel-cat {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: var(--color-enterprise-blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.platforms__panel-desc {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-gray);
  margin-bottom: 2rem;
}

@media (max-width: 1024px) {
  .platforms__explorer-grid { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  .platforms__active-panel { padding: 1.5rem; }
  .platforms__nav-item.is-active { padding-left: 0; }
}