/* ========================================
   Diary Card - モバイルファースト最適化
   新カラーパレット適用版
   ======================================== */

.diary-article {
  background: var(--bg-100);
  border-bottom: 1px solid var(--bg-300);
  padding: 1.25rem 1rem;
  transition: background-color 0.2s ease;
  overflow: hidden;
}

/* カード本文ラッパー（モバイルでの高さ制限対象） */
.card-body-inner {
  position: relative;
}

.diary-article:last-child {
  border-bottom: none;
}

/* ========== Header ========== */
.diary-header {
  margin-bottom: 1rem;
}

.diary-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.diary-name {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  color: var(--text-100);
  flex: 1;
  min-width: 0;
  word-break: break-word;
}

.diary-code {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-200);
  margin-left: 0.5rem;
  white-space: nowrap;
}

.diary-profit-pill {
  flex-shrink: 0;
}

.diary-meta-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

/* ========== タグ行（独立） ========== */
.diary-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  background: rgba(113, 196, 239, 0.15);
  color: var(--accent-200);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid rgba(113, 196, 239, 0.3);
}

.tag-pill i {
  font-size: 0.75rem;
}

.tag-pill:hover {
  background: var(--accent-100);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(113, 196, 239, 0.3);
}

.tag-pill:active {
  transform: translateY(0);
}

/* ========== Figure ========== */
.diary-figure {
  margin: 0 -1rem 1rem;
  position: relative;
  overflow: hidden;
  background: var(--bg-200);
  max-height: 300px;
  transition: max-height 0.3s ease, opacity 0.25s ease, margin 0.3s ease;
  opacity: 1;
}

.diary-figure.figure-collapsed {
  max-height: 0 !important;
  opacity: 0;
  margin-bottom: 0;
  pointer-events: none;
}

.diary-figure img {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  display: block;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.diary-figure:hover img {
  transform: scale(1.03);
}

/* ========== Tabs Navigation - Modern Style ========== */
.diary-tabs {
  display: flex;
  gap: 0.25rem;
  background: var(--bg-200);
  padding: 0.375rem;
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  position: relative;
}

.diary-tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  flex: 1;
  min-width: fit-content;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.75rem 1rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-200);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
  white-space: nowrap;
  position: relative;
  z-index: 1;
}

.tab-btn i {
  font-size: 1.125rem;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.tab-label {
  display: none;
}

.tab-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.375rem;
  background: var(--primary-300);
  color: white;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
  line-height: 1;
  transition: background 0.3s ease;
}

.tab-btn:hover {
  background: rgba(113, 196, 239, 0.08);
  color: var(--accent-200);
}

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

.tab-btn.active {
  background: var(--bg-100);
  color: var(--accent-200);
  box-shadow: var(--elevation-1);
}

.tab-btn.active i {
  transform: scale(1.1);
}

.tab-btn.active .tab-badge {
  background: var(--accent-200);
}

/* Sliding Indicator - モダンなスライディングインジケーター */
.diary-tabs::before {
  content: '';
  position: absolute;
  bottom: 0.375rem;
  left: 0.375rem;
  height: calc(100% - 0.75rem);
  background: var(--bg-100);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-1);
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  z-index: 0;
  pointer-events: none;
}

/* JavaScript will update these custom properties based on active tab */
.diary-tabs[data-active-index="0"]::before {
  width: var(--tab-0-width, 0);
  transform: translateX(var(--tab-0-left, 0));
}

.diary-tabs[data-active-index="1"]::before {
  width: var(--tab-1-width, 0);
  transform: translateX(var(--tab-1-left, 0));
}

.diary-tabs[data-active-index="2"]::before {
  width: var(--tab-2-width, 0);
  transform: translateX(var(--tab-2-left, 0));
}

.diary-tabs[data-active-index="3"]::before {
  width: var(--tab-3-width, 0);
  transform: translateX(var(--tab-3-left, 0));
}

/* スマホ横向き・タブレット以上でラベル表示 */
@media (min-width: 480px) {
  .tab-label {
    display: inline;
  }
  
  .tab-btn {
    padding: 0.75rem 1.25rem;
  }
}

/* PC */
@media (min-width: 768px) {
  .diary-tabs {
    padding: 0.5rem;
  }
  
  .tab-btn {
    font-size: 0.9375rem;
    padding: 0.875rem 1.5rem;
  }
  
  .tab-btn i {
    font-size: 1.25rem;
  }
}

/* ========== Tab Content ========== */
.diary-tab-content {
  position: relative;
  min-height: 150px;
  overflow-x: hidden;
}

.tab-panel {
  animation: fadeIn 0.3s ease;
  max-width: 100%;
  overflow-x: hidden;
}

.tab-panel.panel-scrollable {
  overflow-y: auto;
  max-height: 50dvh;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel-text {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-100);
  margin-bottom: 0.75rem;
}

.panel-text p {
  margin-bottom: 0.75rem;
}

.panel-text p:last-child {
  margin-bottom: 0;
}

.read-more {
  display: inline-flex;
  align-items: center;
  color: var(--accent-200);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: gap 0.2s ease, background 0.2s ease;
  padding: 0.625rem 0.875rem;
  min-height: 44px;
  border-radius: var(--radius-md);
  background: rgba(113, 196, 239, 0.08);
  border: 1px solid rgba(113, 196, 239, 0.2);
  margin-top: 0.5rem;
}

.read-more:hover {
  gap: 0.375rem;
  background: rgba(113, 196, 239, 0.15);
}

.panel-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 3rem 1rem;
  color: var(--text-200);
  font-size: 0.875rem;
}

/* ========== Footer ========== */
.diary-footer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--bg-300);
}

.view-detail {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--accent-200);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: gap 0.2s ease;
}

.view-detail:hover {
  gap: 0.5rem;
}

/* ========================================
   Tablet & Desktop
   ======================================== */

@media (min-width: 768px) {
  .diary-article {
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--bg-300);
    margin-bottom: 1.5rem;
  }
  
  .diary-article:last-child {
    border-bottom: 1px solid var(--bg-300);
  }
  
  .diary-article:hover {
    box-shadow: var(--shadow-sm);
  }
  
  .diary-name {
    font-size: 1.25rem;
  }
  
  .diary-meta-row {
    font-size: 0.9375rem;
  }
  
  .diary-figure {
    margin: 0 0 1.5rem;
    border-radius: var(--radius-md);
  }
  
  .diary-figure img {
    max-height: 240px;
    border-radius: var(--radius-md);
  }
  
  .panel-text {
    font-size: 1rem;
  }
  
  .diary-tab-content {
    min-height: 180px;
  }
}

/* ========================================
   Dark Mode
   ======================================== */

.dark-mode .diary-article,
[data-theme="dark"] .diary-article {
  background: var(--dm-card);
  border-bottom-color: var(--dm-border);
}

@media (min-width: 768px) {
  .dark-mode .diary-article,
  [data-theme="dark"] .diary-article {
    border-color: var(--dm-border);
  }
}

.dark-mode .diary-name,
[data-theme="dark"] .diary-name {
  color: var(--dm-foreground);
}

.dark-mode .diary-code,
[data-theme="dark"] .diary-code {
  color: var(--dm-muted-foreground);
}

.dark-mode .tag-pill,
[data-theme="dark"] .tag-pill {
  background: rgba(113, 196, 239, 0.2);
  color: var(--accent-100);
  border-color: rgba(113, 196, 239, 0.3);
}

.dark-mode .tag-pill:hover,
[data-theme="dark"] .tag-pill:hover {
  background: var(--accent-100);
  color: white;
}

.dark-mode .diary-tabs,
[data-theme="dark"] .diary-tabs {
  background: rgba(182, 204, 216, 0.1);
}

.dark-mode .tab-btn,
[data-theme="dark"] .tab-btn {
  color: var(--dm-muted-foreground);
}

.dark-mode .tab-btn:hover,
[data-theme="dark"] .tab-btn:hover {
  background: rgba(113, 196, 239, 0.15);
  color: var(--accent-100);
}

.dark-mode .tab-btn.active,
[data-theme="dark"] .tab-btn.active {
  background: var(--dm-card);
  color: var(--accent-100);
}

.dark-mode .tab-badge,
[data-theme="dark"] .tab-badge {
  background: var(--dm-muted);
}

.dark-mode .tab-btn.active .tab-badge,
[data-theme="dark"] .tab-btn.active .tab-badge {
  background: var(--accent-100);
}

.dark-mode .panel-text,
[data-theme="dark"] .panel-text {
  color: var(--dm-foreground);
}

.dark-mode .diary-footer,
[data-theme="dark"] .diary-footer {
  border-top-color: var(--dm-border);
}

.dark-mode .view-detail,
[data-theme="dark"] .view-detail {
  color: var(--accent-100);
}

.dark-mode .read-more,
[data-theme="dark"] .read-more {
  color: var(--accent-100);
  background: rgba(113, 196, 239, 0.1);
  border-color: rgba(113, 196, 239, 0.25);
}

/* ========================================
   カード高さ制限（モバイル）
   ======================================== */

@media (max-width: 767px) {
  .card-body-inner {
    max-height: 80dvh;
    overflow: hidden;
  }

  /* はみ出し時のグラデーションフェード */
  .diary-article.card-truncated .card-body-inner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: linear-gradient(to bottom, transparent, var(--bg-100));
    pointer-events: none;
  }
}

.dark-mode .diary-article.card-truncated .card-body-inner::after,
[data-theme="dark"] .diary-article.card-truncated .card-body-inner::after {
  background: linear-gradient(to bottom, transparent, var(--dm-background, #1a1a1a));
}

/* ========================================
   Accessibility
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  .diary-article,
  .diary-figure img,
  .tab-btn,
  .view-detail,
  .read-more,
  .tag-pill,
  .tab-panel {
    transition: none;
    animation: none;
  }
}

@media (hover: none) {
  .tab-btn {
    min-height: 44px;
  }
}

@media (prefers-contrast: high) {
  .diary-article,
  .tag-pill,
  .tab-btn {
    border-width: 2px;
  }
}