/* ==========================================================================
   Firefly Hexo Theme - cards.css
   Post card styles for list / grid / masonry layout modes.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Post List Container
   -------------------------------------------------------------------------- */

.post-list-container {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Grid Layout
   -------------------------------------------------------------------------- */

.post-list-container[data-layout="grid"] .post-list {
  display: grid !important;
  grid-template-columns: repeat(
    auto-fill,
    minmax(var(--grid-column-width, 320px), 1fr)
  );
  gap: 0.875rem;
}

/* --------------------------------------------------------------------------
   List Layout
   -------------------------------------------------------------------------- */

.post-list-container[data-layout="list"] .post-list {
  display: flex !important;
  flex-direction: column;
  gap: 0.875rem;
}

/* --------------------------------------------------------------------------
   Post Card Item (shared)
   -------------------------------------------------------------------------- */

.post-card-item {
  transition: all var(--duration-medium);
  position: relative;
}

/* List mode card hover — M3 tonal elevation */
.post-list-container[data-layout="list"] .post-card-item:hover {
  border-color: oklch(0.65 0.18 var(--hue) / 0.25);
  z-index: 1;
}

/* --------------------------------------------------------------------------
   List Mode: Horizontal Card Layout
   -------------------------------------------------------------------------- */

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="true"] {
  display: grid;
  grid-template-columns: 1fr minmax(160px, 300px);
  gap: 1.25rem;
  padding: 1rem;
  align-items: stretch;
}

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="true"] .post-card-content {
  grid-column: 1;
  padding: 0;
}

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="true"] .post-card-cover {
  grid-column: 2;
  grid-row: 1;
  border-radius: var(--radius-large);
  aspect-ratio: auto;
  height: 100%;
  min-height: 140px;
}

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"] {
  display: grid;
  grid-template-columns: 1fr auto; /* Content left, vertical chevron right */
  gap: 0.75rem;
  padding: 1rem;
  align-items: stretch;
}

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"] .post-card-content {
  padding: 0;
}

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"] .post-card-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  border-radius: var(--md-shape-corner-medium);
  background: var(--md-sys-color-primary-container);
  transition: all var(--duration-fast);
  cursor: pointer;
  flex-shrink: 0;
}

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"] .post-card-arrow a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--md-sys-color-on-primary-container);
  font-size: 1.5rem;
  text-decoration: none;
  transition: all var(--duration-fast);
}

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"]:hover .post-card-arrow {
  background: var(--primary);
}

.post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"]:hover .post-card-arrow a {
  color: #fff;
}

/* --------------------------------------------------------------------------
   Grid Mode: Vertical Card Layout
   -------------------------------------------------------------------------- */

.post-list-container[data-layout="grid"] .post-card-item {
  display: flex;
  flex-direction: column;
}

.post-list-container[data-layout="grid"] .post-card-item:hover {
  border-color: oklch(0.65 0.18 var(--hue) / 0.25);
}

/* Grid mode: hide chevron arrow for coverless cards */
.post-list-container[data-layout="grid"] .post-card-item[data-has-cover="false"] .post-card-arrow {
  display: none;
}

.post-list-container[data-layout="grid"] .post-card-item[data-has-cover="false"] .post-card-content {
  padding: 1rem;
}

/* --------------------------------------------------------------------------
   Cover Image
   -------------------------------------------------------------------------- */

.post-card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-large);
  background: var(--btn-regular-bg);
}

.post-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.post-card-item:hover .post-card-cover img {
  transform: scale(1.03);
}

/* Card mode (grid): cover at top, content below */
.post-list-container[data-layout="grid"] .post-card-cover {
  border-radius: var(--radius-large) var(--radius-large) 0 0;
}

/* --------------------------------------------------------------------------
   Card Content
   -------------------------------------------------------------------------- */

.post-list-container[data-layout="grid"] .post-card-content {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-list-container[data-layout="list"] .post-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   Title
   -------------------------------------------------------------------------- */

.post-card-title {
  margin-top: 0;
  margin-bottom: 0.375rem;
  position: relative;
}

.post-card-title a {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  transition: color var(--duration-fast);
  text-decoration: none;
  padding-left: 0.75rem;
  border-left: 3px solid var(--primary);
  border-radius: 2px;
}

.post-card-title a:hover {
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   Meta (date, reading time, word count)
   -------------------------------------------------------------------------- */

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-top: 0;
  margin-bottom: 0.375rem;
  flex-wrap: wrap;
}

.post-card-meta time {
  white-space: nowrap;
  padding: 0.25rem 0.625rem;
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  border-radius: var(--md-shape-corner-small);
  font-size: 0.75rem;
  font-weight: 500;
  transition:
    background-color var(--md-motion-duration-short) var(--md-motion-easing-standard),
    color var(--md-motion-duration-short) var(--md-motion-easing-standard);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.post-card-meta time:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.post-card-meta .category-badge {
  padding: 0.25rem 0.625rem;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-radius: var(--md-shape-corner-small);
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: filter var(--md-motion-duration-short) var(--md-motion-easing-standard);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.post-card-meta .category-badge:hover {
  filter: brightness(0.92);
}

.post-card-meta .meta-divider {
  width: 3px;
  height: 3px;
  background: var(--meta-divider);
  border-radius: 50%;
  flex-shrink: 0;
}

.post-card-meta .meta-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.post-card-meta .meta-icon svg {
  width: 0.875rem;
  height: 0.875rem;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Excerpt
   -------------------------------------------------------------------------- */

.post-card-excerpt {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin: 0 0 0.5rem 0;
  /* Line clamp to 2 lines */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-list-container[data-layout="grid"] .post-card-excerpt {
  flex: 1;
}

/* --------------------------------------------------------------------------
   Tags
   -------------------------------------------------------------------------- */

.post-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8125rem;
  margin-top: 0.5rem;
}

.post-card-tags a {
  color: var(--md-sys-color-on-surface-variant);
  padding: 0.2rem 0.6rem;
  border-radius: var(--md-shape-corner-small);
  background: var(--md-sys-color-surface-variant);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition:
    background-color var(--md-motion-duration-short) var(--md-motion-easing-standard),
    color var(--md-motion-duration-short) var(--md-motion-easing-standard),
    border-color var(--md-motion-duration-short) var(--md-motion-easing-standard);
  text-decoration: none;
}

.post-card-tags a:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: var(--primary);
}

/* Footer: tags & reading time container */
.post-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line-divider);
}
.post-card-footer .post-card-tags {
  margin-top: 0;
}

/* Reading time badge — M3 chip */
.post-card-reading-time {
  font-size: 0.75rem;
  color: var(--md-sys-color-on-surface-variant);
  padding: 0.2rem 0.6rem;
  background: var(--md-sys-color-surface-variant);
  border-radius: var(--md-shape-corner-small);
  font-weight: 500;
  white-space: nowrap;
  transition:
    background-color var(--md-motion-duration-short) var(--md-motion-easing-standard),
    color var(--md-motion-duration-short) var(--md-motion-easing-standard);
}
.post-card-reading-time:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.post-card-meta .pinned-badge-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.625rem;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-radius: var(--md-shape-corner-small);
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}
.post-card-meta .pinned-badge-inline i {
  font-size: 0.6875rem;
}

/* --------------------------------------------------------------------------
   Pinned Badge
   -------------------------------------------------------------------------- */

.pinned-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: var(--primary);
  color: white;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-small);
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 1;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* For list mode, ensure pinned badge is positioned relative to the card, not the cover */
.post-list-container[data-layout="list"] .post-card-item .pinned-badge {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
}

/* --------------------------------------------------------------------------
   Masonry Layout (separate layout mode)
   -------------------------------------------------------------------------- */

@media (min-width: 769px) {
  .post-list[data-mode="masonry"] {
    column-count: 3;
    column-gap: 1.5rem;
  }

  .post-list[data-mode="masonry"] .post-card-item {
    break-inside: avoid;
    margin-bottom: 1.5rem;
    display: block;
  }

  .post-list[data-mode="masonry"] .post-card-item:hover {
    border-color: oklch(0.65 0.18 var(--hue) / 0.25);
  }

  .post-list[data-mode="masonry"] .post-card-cover {
    border-radius: var(--radius-large);
  }

  .post-list[data-mode="masonry"] .post-card-content {
    padding: 0.75rem 0.25rem;
  }
}

/* Tablet masonry: 2 columns */
@media (min-width: 769px) and (max-width: 1024px) {
  .post-list[data-mode="masonry"] {
    column-count: 2;
  }
}

/* Mobile masonry: 1 column */
@media (max-width: 768px) {
  .post-list[data-mode="masonry"] {
    column-count: 1;
  }

  .post-list-container[data-layout="list"] .post-card-item {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1rem;
  }

  .post-list-container[data-layout="list"] .post-card-item[data-has-cover="true"] {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1rem;
  }
  .post-list-container[data-layout="list"] .post-card-item[data-has-cover="true"] .post-card-content {
    grid-column: auto;
    order: 2;
  }
  .post-list-container[data-layout="list"] .post-card-item[data-has-cover="true"] .post-card-cover {
    grid-column: auto;
    order: 1;
  }

  .post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"] {
    display: block;
    padding: 1rem;
  }
  .post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"] .post-card-content {
    padding: 0;
  }
  .post-list-container[data-layout="list"] .post-card-item[data-has-cover="false"] .post-card-arrow {
    display: none;
  }

  .post-list-container[data-layout="grid"] .post-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
}

/* --------------------------------------------------------------------------
   Content Nav Layout Toggle
   -------------------------------------------------------------------------- */

.content-nav-bar .content-nav-spacer {
  flex: 1;
}

.content-nav-bar .layout-buttons {
  display: flex;
  gap: 0.25rem;
  flex-shrink: 0;
}

.content-nav-bar .layout-buttons button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0.25rem;
  border-radius: var(--md-shape-corner-full);
  cursor: pointer;
  border: none;
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  transition:
    background-color var(--md-motion-duration-short) var(--md-motion-easing-standard),
    color var(--md-motion-duration-short) var(--md-motion-easing-standard),
    border-color var(--md-motion-duration-short) var(--md-motion-easing-standard);
}

.content-nav-bar .layout-buttons button .material-symbols-outlined {
  font-size: 1.125rem;
}

.content-nav-bar .layout-buttons button.active {
  border-color: var(--primary);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.content-nav-bar .layout-buttons button:hover:not(.active) {
  border-color: var(--primary);
}

/* --------------------------------------------------------------------------
   Post List Layout Switch Toolbar
   -------------------------------------------------------------------------- */

.post-list-layout-switch {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.875rem;
  padding: 0.75rem;
  background: var(--card-bg);
  border-radius: var(--radius-medium);
}

.post-list-layout-switch .layout-label {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.post-list-layout-switch .layout-buttons {
  display: flex;
  gap: 0.25rem;
}

.post-list-layout-switch .layout-buttons button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem 0.75rem;
  border-radius: var(--md-shape-corner-full);
  cursor: pointer;
  font-size: 0.875rem;
  border: none;
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  transition:
    background-color var(--md-motion-duration-short) var(--md-motion-easing-standard),
    color var(--md-motion-duration-short) var(--md-motion-easing-standard);
}

.post-list-layout-switch .layout-buttons button:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.post-list-layout-switch .layout-buttons button.active {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: var(--primary);
}

.post-list-layout-switch .layout-buttons button svg {
  width: 1rem;
  height: 1rem;
}

/* --------------------------------------------------------------------------
   Empty State (no posts)
   -------------------------------------------------------------------------- */

.post-list-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text-tertiary);
}

.post-list-empty .empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.3;
}

.post-list-empty .empty-text {
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   Card Hover Effects
   -------------------------------------------------------------------------- */

/* All cards always have rounded rect background */
.post-card-item {
  border-radius: var(--radius-large);
  background: var(--card-bg);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

/* Legacy: card-border class overrides */
.enable-card-border .post-card-item {
}

.enable-card-border .post-list-container[data-layout="list"] .post-card-item {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Archive / Tag Page Card Style Overrides
   -------------------------------------------------------------------------- */

/* Archive header */
.archive-container {
  padding: 2rem 0;
}
.archive-header {
  text-align: center;
  margin-bottom: 2rem;
}
.archive-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}
.archive-count {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 0.5rem;
}

/* Archive year heading */
.archive-year {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.5rem 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary);
}

/* Archive individual item */
.archive-item,
.archive-post-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line-divider);
}

.archive-item-date,
.archive-post-item .archive-date {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  min-width: 6rem;
  font-family: var(--font-mono);
}

.archive-item-title {
  font-size: 1rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--duration-fast);
  flex: 1;
}

.archive-item-title:hover {
  color: var(--primary);
}

.archive-post-item .archive-title {
  font-size: 1rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--duration-fast);
  flex: 1;
}

.archive-post-item .archive-title:hover {
  color: var(--primary);
}

.archive-empty {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-tertiary);
}

/* --------------------------------------------------------------------------
   Content Navigation Bar (horizontal shortcuts row at top of main content)
   -------------------------------------------------------------------------- */
.content-nav-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--card-bg);
  border-radius: var(--radius-large, 12px);
  margin-bottom: 0.875rem;
  flex-wrap: wrap;
  transition: all var(--duration-fast, 0.2s);
}

.content-nav-item {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--md-shape-corner-full);
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition:
    background-color var(--md-motion-duration-short) var(--md-motion-easing-standard),
    color var(--md-motion-duration-short) var(--md-motion-easing-standard);
}

.content-nav-item:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

/* Active and special states */
.content-nav-home {
  padding: 0.375rem 0.625rem;
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
}

.content-nav-home.active,
.content-nav-home:hover {
  background: var(--md-sys-color-primary-container) !important;
  color: var(--md-sys-color-on-primary-container) !important;
}

.content-nav-item.active {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}
.content-nav-item.active .material-symbols-outlined {
  font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 24;
}

.content-nav-item .nav-item-count {
  font-size: 0.75rem;
  color: var(--md-sys-color-on-surface-variant);
  opacity: 0.7;
  margin-left: 0.125rem;
}

.content-nav-item.active .nav-item-count {
  color: var(--md-sys-color-on-primary-container);
}