/* Prelúdio / Hero Abertura */
.preludio-section {
  position: relative;
  height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-primary);
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.preludio-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.preludio-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 var(--spacing-md);
}

.preludio-title {
  font-size: 3.5rem;
  font-weight: 300;
  letter-spacing: -0.06em;
  line-height: 0.95;
  margin-bottom: var(--spacing-lg);
  opacity: 0;
  transform: translateY(30px);
  animation: preludioReveal 1.8s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.5s;
}

.preludio-title strong {
  font-weight: 600;
}

@keyframes preludioReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.seletor-projetos {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: preludioReveal 1.8s cubic-bezier(0.16, 1, 0.3, 1) forwards 1s;
}

.seletor-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.6rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: var(--transition-fast);
}

.seletor-btn:hover, .seletor-btn.active {
  border-color: var(--accent-color);
  color: var(--text-primary);
  background-color: rgba(255, 122, 0, 0.05);
}

/* 01 Discovery - Services */
.discovery-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

@media (max-width: 992px) {
  .discovery-layout {
    grid-template-columns: 1fr;
  }
}

/* Blueprint drawing canvas representation */
.blueprint-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  background-color: #001026; /* Deep Blueprint Blue */
  border: 1px solid rgba(0, 51, 153, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: var(--transition-premium);
}

.blueprint-viewport.active-view {
  background-color: var(--bg-card);
  border-color: var(--border-color);
}

.blueprint-grid-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.blueprint-img-reveal {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  opacity: 0;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), clip-path 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  filter: grayscale(0.2) contrast(1.1);
}

.blueprint-viewport.active-view .blueprint-img-reveal {
  opacity: 1;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* 02 Analysis - Control Dashboard */
.analysis-layout {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: var(--spacing-lg);
  align-items: center;
}

@media (max-width: 992px) {
  .analysis-layout {
    grid-template-columns: 1fr;
  }
}

/* 03 Planning - Concrete brutalist text panel */
.planning-concrete-panel {
  position: relative;
  background-color: #080808;
  border: 1px solid var(--border-color);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

/* Simulated brutalist grid divisions */
.planning-concrete-panel::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.005);
}

.planning-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

@media (max-width: 576px) {
  .planning-grid {
    grid-template-columns: 1fr;
  }
}

.planning-item {
  border-left: 1px solid var(--border-color);
  padding-left: var(--spacing-sm);
}

/* 04 Execution - Netflix Portfolio Slides */
.execution-section {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.execution-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s;
  z-index: 1;
}

.execution-slide.active-slide {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.slide-content-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  width: 100%;
}

@media (max-width: 768px) {
  .slide-content-layout {
    grid-template-columns: 1fr;
  }
}

.slide-meta-panel {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.slide-meta-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
}

.slide-title-mask {
  font-size: 5rem;
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.06em;
  margin-top: var(--spacing-sm);
  text-transform: uppercase;
  background-clip: text;
  -webkit-background-clip: text;
}

.slide-nav-controls {
  position: absolute;
  bottom: var(--spacing-lg);
  right: var(--spacing-md);
  display: flex;
  gap: var(--spacing-sm);
  z-index: 10;
}

.slide-nav-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.slide-nav-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* 05 Delivery & Epílogo */
.delivery-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
}