/* Page-specific Styles */

/* Home Page */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--steel-dark) 0%, var(--steel-mid) 100%);
  color: var(--ceramic-white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 35px,
      rgba(255,255,255,.05) 35px,
      rgba(255,255,255,.05) 70px
    );
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__model {
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: var(--radius-lg);
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--aluminum-silver);
}

.hero__model-placeholder {
  text-align: center;
}

.hero__model-placeholder p {
  color: var(--aluminum-silver);
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
}

.hero__model-placeholder small {
  color: var(--aluminum-silver);
  opacity: 0.7;
}

.hero__text h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero__tagline {
  font-size: var(--text-xl);
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

.hero__cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Technology Overview Section */
.tech-overview {
  background-color: white;
}

.tech-overview__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.tech-overview__content {
  max-width: 600px;
}

.tech-overview__table {
  width: 100%;
  background-color: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.tech-overview__table thead {
  background-color: var(--steel-dark);
  color: white;
}

.tech-overview__table th,
.tech-overview__table td {
  padding: var(--space-md);
  text-align: left;
}

.tech-overview__table tbody tr:nth-child(even) {
  background-color: rgba(52, 73, 94, 0.05);
}

/* Progress Page */
.progress-hero {
  background-color: var(--steel-dark);
  color: white;
  padding: var(--space-4xl) 0 var(--space-3xl);
  margin-top: 60px;
}

.timeline {
  position: relative;
  padding: var(--space-xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--aluminum-silver);
  transform: translateX(-50%);
}

.phase-checklist {
  max-width: 800px;
  margin: 0 auto;
}

.phase {
  background-color: white;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.phase__header {
  padding: var(--space-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color var(--transition-base);
}

.phase__header:hover {
  background-color: rgba(52, 152, 219, 0.05);
}

.phase--complete .phase__header {
  background-color: rgba(39, 174, 96, 0.1);
}

.phase__title {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--text-lg);
  font-weight: 600;
}

.phase__icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--aluminum-silver);
  color: white;
  font-size: var(--text-sm);
}

.phase--complete .phase__icon {
  background-color: var(--success-green);
}

.phase__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.phase--expanded .phase__content {
  max-height: 1000px;
}

.phase__milestones {
  padding: 0 var(--space-lg) var(--space-lg);
}

.milestone {
  padding: var(--space-md);
  border-left: 3px solid var(--aluminum-silver);
  margin-bottom: var(--space-md);
}

.milestone--complete {
  border-color: var(--success-green);
}

/* Team Page */
.team-hero {
  background-color: var(--steel-dark);
  color: white;
  padding: var(--space-4xl) 0 var(--space-3xl);
  margin-top: 60px;
  text-align: center;
}

.team-hero__mission {
  font-size: var(--text-xl);
  opacity: 0.9;
  max-width: 800px;
  margin: 0 auto;
}

.open-positions {
  background-color: rgba(52, 152, 219, 0.05);
  padding: var(--space-3xl) 0;
}

.position-card {
  background-color: white;
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--acoustic-blue);
  transition: all var(--transition-base);
}

.position-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.position-card__title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--steel-dark);
  margin-bottom: var(--space-sm);
}

.position-card__requirements {
  list-style: disc;
  padding-left: var(--space-lg);
  color: var(--aluminum-silver);
}

.stanford-resources {
  background-color: white;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.resource-item {
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background-color: rgba(149, 165, 166, 0.1);
}

.resource-item__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  color: var(--steel-dark);
}

.join-section {
  background-color: var(--steel-dark);
  color: white;
  text-align: center;
  padding: var(--space-4xl) 0;
}

.join-section h2 {
  margin-bottom: var(--space-xl);
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: grid;
  gap: var(--space-md);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  transition: all var(--transition-base);
}

.contact-form input::placeholder,
.contact-form select::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--acoustic-blue);
  background-color: rgba(255, 255, 255, 0.15);
}

.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

/* Team Placeholder */
.team-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--aluminum-silver);
  color: white;
}

.team-placeholder svg {
  width: 60%;
  height: 60%;
  opacity: 0.6;
}

/* Subsystems Carousel */
.carousel-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 80px; /* Space for buttons */
}

.carousel {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.carousel__track {
  display: flex;
  transition: transform 0.5s ease;
}

.carousel__slide {
  min-width: 100%;
  padding: 0 var(--space-md);
}

.subsystem-card {
  background-color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: calc(var(--space-xl) * 0.9);
  padding: calc(var(--space-xl) * 0.9);
  min-height: 400px;
}

.subsystem-card__model {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(52, 152, 219, 0.05);
  border-radius: var(--radius-md);
  padding: calc(var(--space-lg) * 0.9);
}

.model-placeholder {
  text-align: center;
  color: var(--acoustic-blue);
}

.model-placeholder svg {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-md);
  opacity: 0.3;
}

.model-placeholder p {
  font-size: var(--text-sm);
  opacity: 0.7;
}

.subsystem-card__content h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
  color: var(--steel-dark);
}

.subsystem-info {
  display: flex;
  flex-direction: column;
  gap: calc(var(--space-md) * 0.9);
}

.info-section h4 {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--acoustic-blue);
  margin-bottom: var(--space-xs);
}

.info-section p {
  font-size: var(--text-base);
  color: var(--aluminum-silver);
  line-height: 1.6;
}

/* Carousel Controls */
.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: white;
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  z-index: 2;
}

.carousel__btn:hover {
  background-color: var(--acoustic-blue);
  color: white;
  transform: translateY(-50%) scale(1.1);
}

.carousel__btn--prev {
  left: 20px;
}

.carousel__btn--next {
  right: 20px;
}

.carousel__btn svg {
  width: 24px;
  height: 24px;
}

/* Carousel Dots */
.carousel__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background-color: var(--aluminum-silver);
  opacity: 0.3;
  cursor: pointer;
  transition: all var(--transition-base);
}

.carousel__dot:hover {
  opacity: 0.6;
}

.carousel__dot--active {
  opacity: 1;
  background-color: var(--acoustic-blue);
}

/* Responsive Pages */
@media (max-width: 768px) {
  .hero__content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .hero__model {
    order: 2;
  }
  
  .hero h1 {
    font-size: var(--text-3xl);
  }
  
  .tech-overview__grid {
    grid-template-columns: 1fr;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .phase__header {
    padding: var(--space-md);
  }
  
  .subsystem-card {
    grid-template-columns: 1fr;
    gap: calc(var(--space-lg) * 0.9);
    padding: calc(var(--space-lg) * 0.9);
  }
  
  .subsystem-card__model {
    min-height: 200px;
  }
  
  .carousel-container {
    padding: 0 50px;
  }
  
  .carousel__btn {
    width: 36px;
    height: 36px;
  }
  
  .carousel__btn--prev {
    left: var(--space-xs);
  }
  
  .carousel__btn--next {
    right: var(--space-xs);
  }
}