/**
 * CUBE CSS - Layer 4: Blocks
 * Component-specific styling with exceptions
 */

/* Block: site-header */
.site-header {
  padding-block-start: var(--space-md);
  padding-block-end: var(--space-xs);
}

/* Block: site-main */
.site-main {
  padding-block: var(--space-lg);
  margin-inline: auto;
}

/* Block: site-footer */
.site-footer {
  padding: var(--space-xs);
}

/* ========================================
   EXCEPTIONS - Responsive & Contextual
   ======================================== */

/* Exception: Smaller main padding on mobile */
@media (max-width: 599px) {
  .site-main {
    padding-block: var(--space-md);
  }

  /* Exception: Footer switches to block layout on mobile */
  .site-footer {
    display: block;
    width: var(--max-width-mobile);
    margin-inline: auto;
  }
}

/* ========================================
   WELCOME PAGE BLOCKS
   ======================================== */

/* Block: hero-section */
.hero-section {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  /* Fill viewport minus body padding-bottom (main-nav + timeline-nav) and main padding */
  min-height: calc(100vh - var(--height-main-nav) - var(--height-nav) - 4rem);
}

.hero-content {
  text-align: left;
  --flow-space: var(--space-md);
}

.portrait-container {
  margin-bottom: 2rem;
}

.portrait-image {
  width: 100%;
  max-width: 400px;
  height: auto;
  mix-blend-mode: difference;
  display: block;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-hero-title);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-gold);
  line-height: 1;
  margin: 0;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: var(--font-size-hero-subtitle);
  color: var(--color-text-gold);
  opacity: var(--opacity-high);
  line-height: 1.4;
  margin: 0;
}

.hero-links {
  margin-top: 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  --flow-space: 0;
}

a.hero-link {
  flex-grow: 1;
  text-align: center;
  font-size: var(--font-size-hero-link);
  font-weight: var(--font-weight-bold);
  color: var(--color-bg-dark);
  /* text-decoration: underline; */
  text-underline-offset: 4px;
  transition: opacity 0.2s;
  opacity: var(--opacity-subtle);
}

.hero-link:hover {
  opacity: 1;
}

/**
 * CUBE CSS - Layer 4: Blocks (ADDITION)
 * Pixel button variant for hero links
 * Box-shadow approach with readable contrast
 */

/* Pixel button modifier for hero-link */
a.hero-link--pixel {
  /* Override hero-link defaults */
  text-decoration: none;
  padding: .5rem 1rem;
  
  /* Pixel button styling */
  position: relative;
  background: var(--color-text-gold);
  color: var(--color-bg-dark); /* Dark text on gold background for contrast */
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  clip-path: polygon(
    0% 4px, 4px 4px, 4px 0%,
    calc(100% - 4px) 0%, calc(100% - 4px) 4px, 100% 4px,
    100% calc(100% - 4px), calc(100% - 4px) calc(100% - 4px),
    calc(100% - 4px) 100%, 4px 100%, 4px calc(100% - 4px),
    0% calc(100% - 4px)
  );
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.4);
}

.hero-link--pixel:hover {
  transform: translateY(2px);
}

.hero-link--pixel:active {
  transform: translateY(2px);
}

/* ========================================
   EXCEPTIONS - Responsive
   ======================================== */

/* Exception: Medium screens */
@media (max-width: 767px) {
  .hero-links {
    gap: .25rem;
    --flow-space: .25rem;
  }
  .hero-link--pixel {
    padding: 0.875rem 1.75rem;
  }
}

/* Exception: Small screens */
@media (max-width: 599px) {
  .hero-link--pixel {
    display: block;
    width: 100%;
    text-align: center;
    padding: 0.75rem 1.5rem;
  }
}

/* Block: media-nav */
.media-nav {
  position: fixed;
  bottom: calc(var(--height-main-nav) + var(--height-nav));
  height: var(--height-media-nav);
  line-height: 0.75;
  left: 0;
  right: 0;
  width: 100%;
  max-width: var(--max-width-content);
  margin-inline: auto;
  padding-inline: var(--space-sm);
  box-sizing: border-box;
  background-color: var(--bg-nav);
  border-top: var(--border-nav-subtle);
  z-index: var(--z-media-nav);
}

.media-nav .media-thumbnail {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  opacity: 1;
}

.media-nav .timeline-item img {
  display: block;
  width: 32px;
  height: 32px;
  object-fit: cover;
  border-radius: 4px;
  /* opacity: var(--opacity-medium); */
  /* transition: opacity 0.2s, transform 0.2s; */
}

.media-nav .timeline-item:hover img {
  opacity: var(--opacity-full);
  transform: scale(1.05);
}

.media-nav .media-type-indicator {
  display: block;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--color-text-gold);
  opacity: var(--opacity-medium);
  transition: opacity 0.2s;
}

/* Block: media-modal */
#media-modal {
  max-width: 90vw;
  max-height: 90vh;
  border: none;
  border-radius: 8px;
  background-color: var(--color-bg);
  padding: 0;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
  z-index: var(--z-modal);
}

#media-modal::backdrop {
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  min-width: 300px;
}

.modal-content .media-item {
  display: flex !important;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.modal-content img {
  max-width: 100%;
  max-height: 80vh;
  height: auto;
  display: block;
  border-radius: 4px;
}

.modal-content .media-title {
  color: var(--color-text-gold);
  font-size: 1.5rem;
  margin: 0;
}

.modal-content .media-caption {
  color: var(--color-text-gold);
  opacity: var(--opacity-medium);
  margin: 0;
  text-align: center;
  max-width: 600px;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  color: var(--color-text-gold);
  font-size: 2rem;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  z-index: 1;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.8);
}

/* Block: timeline-nav */
.timeline-nav {
  position: fixed;
  bottom: var(--height-main-nav);
  height: var(--height-nav);
  line-height: 0.75;
  left: 0;
  right: 0;
  width: 100%;
  max-width: var(--max-width-content);
  margin-inline: auto;
  padding-inline: var(--space-sm);
  box-sizing: border-box;
  background-color: var(--bg-nav);
  border-top: var(--border-nav-subtle);
  z-index: var(--z-timeline-nav);
}

.timeline-scroll {
  display: flex;
  align-items: center;
  gap: 2rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: var(--space-sm);
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}

.timeline-scroll::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

.timeline-item {
  flex-shrink: 0;
  font-size: var(--font-size-timeline-item);
  color: var(--color-text-gold);
  opacity: var(--opacity-medium);
  text-decoration: none;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.timeline-item:hover {
  opacity: var(--opacity-full);
}

.timeline-item--inactive {
  opacity: var(--opacity-subtle);
  cursor: default;
}

.timeline-item--inactive:hover {
  opacity: var(--opacity-subtle);
}

.timeline-item--active {
  flex-shrink: 0;
  font-size: var(--font-size-timeline-active);
  font-weight: 900;
  color: var(--color-text-gold);
  opacity: var(--opacity-full);
  white-space: nowrap;
}

/* Block: main-nav */
.main-nav {
  position: fixed;
  height: var(--height-main-nav);
  line-height: 1;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  max-width: var(--max-width-content);
  margin-inline: auto;
  padding-inline: var(--space-sm);
  box-sizing: border-box;
  background-color: var(--bg-main-nav);
  border-top: var(--border-nav);
  z-index: var(--z-main-nav);
}

.main-nav-scroll {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: var(--space-sm);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.main-nav-scroll::-webkit-scrollbar {
  display: none;
}

.main-nav-item {
  flex-shrink: 0;
  font-size: var(--font-size-nav-item);
  color: var(--color-text-gold);
  opacity: var(--opacity-muted);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.main-nav-item:hover {
  opacity: var(--opacity-nav-hover);
}

.main-nav-item--active {
  opacity: var(--opacity-full);
  font-weight: var(--font-weight-bold);
}

/* ========================================
   WELCOME PAGE EXCEPTIONS - Responsive
   ======================================== */

/* Exception: Medium screens */
@media (max-width: 767px) {

  .portrait-image {
    max-width: 300px;
  }

  .main-nav-scroll {
    gap: var(--space-md);
  }
}

/* Exception: Small screens */
@media (max-width: 599px) {
  .portrait-image {
    max-width: 250px;
  }

  .timeline-scroll {
    gap: var(--space-md);
    scrollbar-width: thin;
    scrollbar-color: var(--color-text-gold) var(--bg-nav);
  }

  .main-nav-scroll {
    gap: var(--space-sm);
  }
}

/* Block: year-list */
.year-list {
  list-style: none;
  padding: 0;
}

.year-number--inactive {
  opacity: var(--opacity-subtle);
}