/* Mobile-First Base Styles */

/* Layout & Structure */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-4);
  position: sticky;
  top: 0;
  z-index: calc(var(--z-modal) + 10);
}

main {
  flex: 1;
  padding: var(--spacing-4);
}

footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-8) var(--spacing-4);
  margin-top: auto;
}

/* Header & Navigation */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-3);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.site-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin: 0;
  flex: 1;
}

.site-title a {
  color: var(--color-text-primary);
}

.site-title a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 0;
  cursor: pointer;
  padding: 0;
  min-width: var(--touch-target);
  transition: background-color var(--transition-base);
}

.hamburger:hover,
.hamburger:active {
  background-color: var(--color-bg-secondary);
}

.hamburger:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text-primary);
  margin: 3px 0;
  transition: all var(--transition-base);
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translateY(11px);
}

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

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translateY(-11px);
}

nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg-primary);
  z-index: var(--z-modal);
  padding: calc(var(--touch-target) + var(--spacing-8)) var(--spacing-6) var(--spacing-6);
  border-radius: 0;
}

nav.open {
  display: block;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

nav li {
  margin-bottom: 0;
}

nav a {
  display: block;
  padding: var(--spacing-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
  transition: background-color var(--transition-base);
}

nav a:hover {
  background-color: var(--color-bg-secondary);
  text-decoration: none;
}

/* Grid Container */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-8);
}

/* Card / Project Item */
.card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: 0;
  overflow: hidden;
  transition: box-shadow var(--transition-base);
  cursor: pointer;
}

.card:active {
  box-shadow: var(--shadow-md);
}

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

.card-image {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background-color: var(--color-bg-secondary);
  display: block;
}

.card-content {
  padding: var(--spacing-4);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin: 0 0 var(--spacing-2) 0;
  line-height: var(--line-height-tight);
}

.card-meta {
  display: flex;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.card-year {
  font-family: var(--font-mono);
  font-weight: var(--font-weight-bold);
}

.card-excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-top: var(--spacing-3);
}

.tag {
  display: inline-block;
  padding: var(--spacing-1) var(--spacing-3);
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  border-radius: 0;
  border: 1px solid var(--color-border);
}

/* Project Detail Page */
.project-detail {
  max-width: 100%;
}

.project-gallery {
  margin-bottom: var(--spacing-6);
}

.gallery-image {
  width: 100%;
  height: auto;
  margin-bottom: var(--spacing-4);
  border-radius: 0;
  overflow: hidden;
}

.gallery-image img {
  width: 100%;
  height: auto;
  display: block;
}

.project-header {
  margin-bottom: var(--spacing-6);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--spacing-6);
}

.project-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  margin: 0 0 var(--spacing-3) 0;
  line-height: var(--line-height-tight);
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: var(--spacing-1);
}

.meta-value {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-bold);
}

.project-description {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target);
  padding: var(--spacing-3) var(--spacing-5);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  border: 1px solid var(--color-border);
  border-radius: 0;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  gap: var(--spacing-2);
}

.btn:hover {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.btn-small {
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-xs);
  min-height: auto;
}

.btn-icon {
  width: var(--touch-target);
  height: var(--touch-target);
  padding: 0;
  border-radius: 0;
}

/* Footer */
.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

.footer-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.authors-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.author-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: 0;
  background-color: var(--color-bg-primary);
}

.author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 0;
  object-fit: cover;
  margin-bottom: var(--spacing-3);
  border: 2px solid var(--color-border);
}

.author-name {
  font-family: var(--font-mono);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  margin: 0 0 var(--spacing-2) 0;
}

.author-name a {
  color: var(--color-text-primary);
}

.author-name a:hover {
  color: var(--color-accent);
}

.author-socials {
  display: flex;
  gap: var(--spacing-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-3);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  border: 1px solid var(--color-border);
  border-radius: 0;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  transition: all var(--transition-base);
  text-decoration: none;
}

.social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: var(--color-bg-secondary);
}

.social-link:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.social-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-socials {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
  justify-content: center;
  padding-top: var(--spacing-6);
  border-top: 1px solid var(--color-border);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  margin: var(--spacing-8) 0;
  flex-wrap: wrap;
}

.pagination-info {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Utility Classes */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.container {
  width: 100%;
  max-width: var(--max-content-width);
  margin-left: auto;
  margin-right: auto;
}

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

.text-muted {
  color: var(--color-text-muted);
}

.mb-0 {
  margin-bottom: 0;
}

.mb-2 {
  margin-bottom: var(--spacing-2);
}

.mb-4 {
  margin-bottom: var(--spacing-4);
}

.mb-6 {
  margin-bottom: var(--spacing-6);
}

.mt-4 {
  margin-top: var(--spacing-4);
}

.mt-6 {
  margin-top: var(--spacing-6);
}

/* Loading State */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  border-radius: 0;
  animation: spin 1s linear infinite;
  pointer-events: none;
}

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

/* Alpine Cloak & Keyboard Focus */
[x-cloak] {
  display: none !important;
}

.ring-focus {
  outline: 2px solid var(--color-focus) !important;
  outline-offset: 4px;
  position: relative;
  z-index: 10;
}

/* Utilities */
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.justify-between { justify-content: space-between; }

/* Mobile sorting row wrap */
@media (max-width: 640px) {
  .flex.justify-between.items-end.border-b {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-4);
  }
  .sort-controls {
    width: 100%;
    justify-content: flex-start !important;
  }
}
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.border-b { border-bottom: 1px solid var(--color-border); }
.border-t { border-top: 1px solid var(--color-border); }
.pb-4 { padding-bottom: var(--spacing-4); }
.pt-4 { padding-top: var(--spacing-4); }
.pt-8 { padding-top: var(--spacing-8); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-12 { margin-top: var(--spacing-12); }
.mb-2 { margin-bottom: var(--spacing-2); }
.ml-2 { margin-left: var(--spacing-2); }
.text-sm { font-size: var(--font-size-sm); }
.relative { position: relative; }
.overflow-hidden { overflow: hidden; }
.select-none { user-select: none; }
.w-full { width: 100%; }
.h-full { height: 100%; }

/* Lightbox Styles */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-primary);
  outline: none;
}

.lightbox-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: -1;
}

.lightbox-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  z-index: 1;
}

.lightbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4);
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}

.lightbox-counter {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-bold);
}

.lightbox-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.lightbox-close:hover {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.lightbox-close:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.lightbox-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-4);
  padding: var(--spacing-4);
  overflow: hidden;
  position: relative;
}

.lightbox-image-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
  overflow: auto;
}

.lightbox-image {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.lightbox-prev,
.lightbox-next {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-base);
}

.lightbox-prev:hover:not(:disabled),
.lightbox-next:hover:not(:disabled) {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.lightbox-prev:disabled,
.lightbox-next:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.lightbox-prev:focus,
.lightbox-next:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.lightbox-footer {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  padding: var(--spacing-4);
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  overflow-y: auto;
  max-height: 200px;
}

.lightbox-meta {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.metadata-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.meta-item {
  display: flex;
  gap: var(--spacing-2);
  align-items: flex-start;
}

.meta-label {
  color: var(--color-text-muted);
  white-space: nowrap;
  font-weight: var(--font-weight-bold);
}

.meta-item code {
  background: none;
  padding: 0;
  color: var(--color-text-primary);
  word-break: break-all;
}

.lightbox-download {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.lightbox-download svg {
  width: 20px;
  height: 20px;
}

/* Theme Switcher Button */
.theme-switcher-container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: auto;
}

.theme-switcher {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-base);
  position: relative;
}

.theme-switcher:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.theme-switcher:active {
  transform: scale(0.95);
}

.theme-switcher:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.theme-icon-dark,
.theme-icon-light {
  position: absolute;
  width: 20px;
  height: 20px;
  stroke: currentColor;
  transition: opacity var(--transition-base);
}

.theme-switcher[data-theme="dark"] .theme-icon-dark {
  opacity: 1;
}

.theme-switcher[data-theme="dark"] .theme-icon-light {
  opacity: 0;
}

.theme-switcher[data-theme="light"] .theme-icon-dark {
  opacity: 0;
}

.theme-switcher[data-theme="light"] .theme-icon-light {
  opacity: 1;
}