/* Architectural Sculptures Portfolio - Dark Gallery */

:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --bg-card: #0d0d0d;
  --border: #222222;
  --border-hover: #ffffff;
  --text: #ffffff;
  --text-muted: #888888;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.75rem 2rem;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-title {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin: 0;
  color: var(--bg);
}

.site-title a {
  color: inherit;
  text-decoration: none;
}

.site-title a:hover {
  opacity: 0.8;
}

.site-nav {
  display: flex;
  gap: 2rem;
}

/* Hamburger Menu Button - hidden on desktop */
.hamburger {
  display: none !important;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 24px;
  height: 24px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
  list-style: none;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  transition: all var(--transition);
}

.hamburger-header span {
  background: var(--bg);
}

.hamburger-category span {
  background: var(--text);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

.nav-link {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #666666;
  text-decoration: none;
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--bg);
}

/* Gallery Container */
.gallery-container {
  flex: 1;
  width: 100%;
  padding: 0;
}

/* Category Navigation */
.category-nav {
  display: flex;
  flex-direction: column;
}

.category-row {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 2rem;
  padding: 0.75rem 2rem;
  border-bottom: 0.5px solid var(--border);
}

.category-label {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
}

.category-tab {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  position: relative;
  transition: color var(--transition);
  text-decoration: none;
}

.category-tab:hover {
  color: var(--text);
}

.category-tab.active {
  color: var(--text);
}

/* Category Dropdown */
.category-dropdown {
  position: relative;
}

.category-tab.has-dropdown {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.dropdown-arrow {
  transition: transform var(--transition);
}

.category-dropdown.open .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: -1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-top: none;
  min-width: 160px;
  z-index: 200;
  display: none;
  flex-direction: column;
}

.category-dropdown.open .dropdown-menu {
  display: flex;
}

.dropdown-item {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg);
  border: none;
  padding: 0.75rem 1rem;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  display: block;
}

.dropdown-item:hover {
  color: var(--text);
}

.dropdown-item.active {
  color: var(--text);
}

/* Mobile-only ROOMS line - hidden on desktop */
.rooms-mobile-line {
  display: none;
}

/* Project Grid - 4 columns, no gap */
.project-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

/* Project Card */
.project-card {
  position: relative;
  background: var(--bg-card);
  cursor: pointer;
  overflow: hidden;
  border: 0.5px solid rgba(255, 255, 255, 0.08);
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid transparent;
  z-index: 10;
  pointer-events: none;
  transition: border-color var(--transition);
}

.project-card:hover::before {
  border-color: var(--border-hover);
}

.project-thumbnail {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-elevated);
}

.project-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition);
}

.project-thumbnail.no-thumbnail {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
}

.project-thumbnail.no-thumbnail::before {
  content: '';
  width: 48px;
  height: 48px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23444' stroke-width='1' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z'%3E%3C/path%3E%3Cpolyline points='3.27 6.96 12 12.01 20.73 6.96'%3E%3C/polyline%3E%3Cline x1='12' y1='22.08' x2='12' y2='12'%3E%3C/line%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.5;
}

/* Removed hover fade effect - keep thumbnail as-is */

/* Title overlay on hover */
.project-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0) 100%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.project-card:hover .project-info {
  opacity: 1;
}

.project-number {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.7rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.project-title {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--text);
  text-transform: uppercase;
}

.project-meta {
  display: none;
}

/* Viewer Modal */
.viewer-modal {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transition: opacity var(--transition);
}

.viewer-modal.hidden {
  display: none;
}

.viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}

.viewer-title {
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 0.1em;
}

.viewer-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.viewer-container {
  flex: 1;
  position: relative;
  background: var(--bg-elevated);
  overflow: hidden;
}

#viewer-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.viewer-controls {
  padding: 1rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
}

.control-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* Loading Indicator */
.loading-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.loading-indicator.hidden {
  display: none;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 2px solid var(--border);
  border-top-color: var(--text);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* World Modal (Hyperfy iframe) */
.world-modal {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 1001;
  display: flex;
  flex-direction: column;
}

.world-modal.hidden {
  display: none;
}

.world-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.world-title {
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--text);
}

.world-iframe {
  flex: 1;
  border: none;
  width: 100%;
}

/* Embedded World in Card */
.project-world {
  position: absolute;
  inset: 0;
  background: var(--bg);
  z-index: 5;
}

.project-world.hidden {
  display: none;
}

.project-world .world-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.world-close-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 20;
  width: 2rem;
  height: 2rem;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.world-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--text);
}

/* Download button in world view (next to close button) */
.download-btn {
  position: absolute;
  top: 0.5rem;
  right: 2.75rem;
  z-index: 20;
  width: 2rem;
  height: 2rem;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  text-decoration: none;
}

.download-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--text);
}

.project-card.world-active {
  z-index: 10;
}

.project-card.world-active::before {
  border-color: var(--border-hover);
}

/* Buttons */
.btn {
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.75rem 1.5rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
}

.btn-primary:hover {
  background: #cccccc;
}

.btn-close {
  background: transparent;
  color: var(--text);
  font-size: 1.5rem;
  padding: 0.5rem;
  line-height: 1;
}

.btn-close:hover {
  opacity: 0.7;
}

/* Footer */
.site-footer {
  padding: 12px 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* Responsive */
@media (max-width: 1200px) {
  .project-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Header hamburger menu */
  .site-header {
    padding: 0.75rem 2rem;
    flex-wrap: wrap;
    gap: 0;
  }

  .hamburger {
    display: flex !important;
  }

  .site-nav {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 0;
    padding-top: 1rem;
    margin-top: 0.75rem;
  }

  .site-nav.open {
    display: flex;
  }

  .nav-link {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  /* Category nav hamburger menu */
  .category-row {
    flex-wrap: wrap;
    padding: 0.75rem 2rem;
    position: relative;
  }

  .category-label {
    flex: 1;
  }

  .hamburger-category {
    display: flex;
  }

  .category-row .category-tab,
  .category-row .category-dropdown {
    display: none;
  }

  /* When menu is open, show items in a vertical list */
  .category-row.menu-open {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .category-row.menu-open .category-label {
    display: none;
  }

  .category-row.menu-open .hamburger-category {
    position: absolute;
    right: 2rem;
    top: 0.75rem;
    display: flex !important;
    z-index: 10;
  }

  .category-row.menu-open .category-tab {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    width: 100%;
    text-align: left;
  }

  .category-row.menu-open .category-tab:last-of-type {
    border-bottom: none;
  }

  /* Hide the ROOMS dropdown wrapper on mobile, show items directly */
  .category-row .category-dropdown {
    display: none;
  }

  .category-row.menu-open .category-dropdown {
    display: contents;
  }

  /* Hide the ROOMS parent button and dropdown arrow on mobile */
  .category-row.menu-open .category-dropdown .category-tab.has-dropdown {
    display: none;
  }

  /* Hide dropdown menu items on mobile, show combined line instead */
  .category-row.menu-open .category-dropdown .dropdown-menu {
    display: none;
  }

  .category-row.menu-open .category-dropdown .rooms-mobile-line {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    width: 100%;
    font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted);
  }

  .category-row.menu-open .category-dropdown .rooms-mobile-line .rooms-label {
    color: var(--text-muted);
  }

  .category-row.menu-open .category-dropdown .rooms-mobile-line a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition);
  }

  .category-row.menu-open .category-dropdown .rooms-mobile-line a:hover {
    color: var(--text);
  }

  .viewer-header,
  .viewer-controls {
    padding: 1rem;
  }

  .viewer-actions {
    gap: 0.5rem;
  }

  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.7rem;
  }
}

@media (max-width: 500px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.empty-state h3 {
  font-size: 1.25rem;
  font-weight: 300;
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 0.875rem;
}

/* Category Info Tile */
.category-info-tile-wrapper {
  aspect-ratio: 1 / 1;
  position: relative;
  background: var(--bg-card);
  border: 0.5px solid rgba(255, 255, 255, 0.08);
}

.category-info-tile {
  position: absolute;
  inset: 0;
  padding: 1.5rem 2rem;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}

.category-info-tile::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.info-tile-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2rem;
  background: var(--bg-card);
  pointer-events: none;
}

.category-info-tile .info-tile-header {
  margin-bottom: 1rem;
}

.category-info-tile .info-tile-title {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.category-info-tile .info-tile-date {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.category-info-tile .info-tile-intro {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 1rem;
}

.category-info-tile .info-tile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.category-info-tile .info-tile-link {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.category-info-tile .info-tile-link:hover {
  color: var(--text);
  border-color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.category-info-tile .info-tile-text {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--text);
  padding-bottom: 1.5rem;
}

.category-info-tile .info-tile-text h4 {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.category-info-tile .info-tile-text h4:first-child {
  margin-top: 0;
}

.category-info-tile .info-tile-text p {
  margin-bottom: 0.75rem;
}

.category-info-tile .info-tile-text p:last-child {
  margin-bottom: 0;
}

/* Category Video Tile */
.category-video-tile {
  aspect-ratio: 1 / 1;
  position: relative;
  background: var(--bg-card);
  border: 0.5px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.category-video-tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.category-video-tile.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-video-tile.placeholder span {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Media-only cards (for META MODS) */
.project-card.media-only {
  cursor: default;
}

.project-card.media-only .project-media {
  aspect-ratio: 1 / 1;
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
}

.project-card.media-only .project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card.media-only .project-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card.media-only .media-link-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 32px;
  height: 32px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  opacity: 0;
  transition: opacity var(--transition), background var(--transition), color var(--transition);
  z-index: 10;
}

.project-card.media-only:hover .media-link-btn {
  opacity: 1;
}

.project-card.media-only .media-link-btn:hover {
  background: rgba(0, 0, 0, 0.9);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.4);
}

/* WASD Navigation Indicator */
.wasd-indicator {
  position: absolute;
  bottom: 0.5rem;
  left: 0.5rem;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.wasd-keys {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.wasd-row {
  display: flex;
  gap: 3px;
}

.wasd-key {
  width: 2rem;
  height: 2rem;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0;
}

/* EXPLORE World Embed */
.explore-world-container {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
}

.explore-world-header {
  padding: 1.5rem 2rem;
  border-bottom: 0.5px solid rgba(255, 255, 255, 0.08);
}

.explore-world-title {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.explore-world-subtitle {
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--text-muted);
}

.explore-world-embed {
  position: relative;
  width: 100%;
  height: calc(100vh - 120px);
  min-height: 400px;
}

.explore-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
  background: var(--bg-card);
  z-index: 1;
}

.explore-world-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.explore-world-embed .wasd-indicator {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
}