/* ==========================================================================
   Gallery of Truth - Modern Elegant CSS Design System
   ========================================================================== */

/* 変数定義 (カラーパレット & トークン) */
:root {
  --bg-color: #0b0b0e;
  --panel-bg: rgba(20, 20, 27, 0.6);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f3f3f6;
  --text-secondary: #a0a0b0;
  --accent-color: #e2b882; /* 暖かみのあるゴールド */
  --accent-hover: #f0cb9e;
  --danger-color: #ef4444;
  --danger-hover: #f87171;
  --success-color: #10b981;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
  --glass-blur: blur(16px);
}

/* リセット & ベーススタイル */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 背景グロー演出 (光のボケ) */
.bg-glow {
  position: fixed;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
  filter: blur(120px);
  opacity: 0.15;
}
.bg-glow-1 {
  background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
  top: -10%;
  right: -5%;
}
.bg-glow-2 {
  background: radial-gradient(circle, #6366f1 0%, transparent 70%);
  bottom: -10%;
  left: -5%;
}

/* スクロールバーのカスタマイズ */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* 共通コンポーネント: ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 30px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  text-decoration: none;
}
.btn-primary {
  background-color: var(--accent-color);
  color: #1c1917;
}
.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(226, 184, 130, 0.3);
}
.btn-secondary {
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--panel-border);
  backdrop-filter: var(--glass-blur);
}
.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}
.btn-block {
  display: flex;
  width: 100%;
}
.btn i {
  width: 16px;
  height: 16px;
}

/* レイアウトコンテナ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
  min-height: calc(100vh - 180px);
}

/* 全幅ヒーローバナーセクション */
.hero-section {
  position: relative;
  width: 100vw;
  height: 350px;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  overflow: hidden;
  background-color: #0b0b0e;
  border-bottom: 1px solid var(--panel-border);
}
.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(11, 11, 14, 0.1) 0%, rgba(11, 11, 14, 0.4) 60%, rgba(11, 11, 14, 0.98) 100%);
  z-index: 1;
}
.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.6) contrast(1.15) saturate(0.9);
  animation: zoomSlow 25s infinite alternate ease-in-out;
}
.hero-content {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 2;
  width: 90%;
  max-width: 800px;
}
.hero-content h1 {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 600;
  margin: 0 0 8px 0;
  color: #fff;
  text-shadow: 0 4px 20px rgba(0,0,0,0.8);
  letter-spacing: 3px;
  background: linear-gradient(135deg, #fff 30%, #e2b882 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-content .subtitle {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 6px;
  margin: 0;
  text-shadow: 0 2px 10px rgba(0,0,0,0.6);
  font-weight: 500;
}

@keyframes zoomSlow {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}

/* 管理モードパネル */
.admin-panel {
  background-color: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 40px;
  backdrop-filter: var(--glass-blur);
  animation: fadeIn 0.4s ease-out;
}
.admin-panel h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-color);
}
.admin-panel p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.upload-area {
  border: 2px dashed rgba(226, 184, 130, 0.3);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}
.upload-area:hover, .upload-area.dragover {
  border-color: var(--accent-color);
  background-color: rgba(226, 184, 130, 0.05);
}
.upload-icon {
  width: 48px;
  height: 48px;
  color: var(--accent-color);
  margin-bottom: 12px;
}
.upload-area p {
  margin: 0;
  font-size: 1rem;
  color: var(--text-primary);
}
.upload-area p span {
  color: var(--accent-color);
  text-decoration: underline;
}
.upload-person-wrapper {
  margin-top: 16px;
  width: 100%;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}
.upload-person-input {
  width: 100%;
  padding: 8px 14px;
  background: rgba(11, 11, 14, 0.6);
  border: 1px solid rgba(226, 184, 130, 0.2);
  border-radius: 20px;
  color: var(--text-primary);
  outline: none;
  font-size: 0.8rem;
  text-align: center;
  transition: var(--transition-fast);
}
.upload-person-input:focus {
  border-color: var(--accent-color);
  background: rgba(11, 11, 14, 0.9);
  box-shadow: 0 0 10px rgba(226, 184, 130, 0.1);
}
.upload-status {
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--accent-color);
}
.admin-grid-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}
.batch-actions-area {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: center;
}
.batch-actions-area h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.batch-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.batch-info {
  font-size: 0.85rem;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
  padding: 8px 12px;
  border-radius: 6px;
  border-left: 3px solid var(--accent-color);
  font-family: var(--font-sans);
}
.batch-form-group {
  width: 100%;
}
.batch-title-input, .batch-person-input {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--text-primary);
  outline: none;
  font-size: 0.85rem;
  transition: var(--transition-fast);
}
.batch-title-input:focus:not(:disabled), .batch-person-input:focus:not(:disabled) {
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.08);
}
.batch-title-input:disabled, .batch-person-input:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.batch-buttons {
  display: flex;
  gap: 12px;
}
.btn-small {
  padding: 8px 16px;
  font-size: 0.8rem;
  border-radius: 20px;
}
.btn-danger {
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}
.btn-danger:hover:not(:disabled) {
  background-color: var(--danger-color);
  color: #fff;
  box-shadow: 0 6px 15px rgba(239, 68, 68, 0.3);
  transform: translateY(-1px);
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ギャラリーグリッド */
.gallery-section {
  position: relative;
}
.gallery-grid {
  column-count: 4;
  column-gap: 24px;
  width: 100%;
}

/* ギャラリーアイテム (カード) */
.gallery-item {
  display: inline-block;
  width: 100%;
  margin-bottom: 24px;
  break-inside: avoid;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background-color: #16161e;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  transition: var(--transition-smooth);
}
.gallery-item:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 15px 30px rgba(0,0,0,0.5), 0 0 15px rgba(226, 184, 130, 0.15);
}
.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition-smooth);
}
.gallery-item:hover img {
  filter: brightness(1.08);
}

/* 選択用チェックボックスオーバーレイ (管理モード時に表示) */
.select-overlay {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 10;
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition-smooth);
}
.admin-active .select-overlay {
  opacity: 1;
  transform: scale(1);
}
.select-checkbox {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  outline: none;
  cursor: pointer;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: var(--glass-blur);
  transition: var(--transition-fast);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.select-checkbox:hover {
  border-color: var(--accent-color);
  transform: scale(1.05);
}
.select-checkbox:checked {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
}
.select-checkbox:checked::after {
  content: '✓';
  color: #000;
  font-size: 13px;
  font-weight: bold;
}

/* 削除オーバーレイ (管理モード時に表示) */
.delete-overlay {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 10;
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition-smooth);
}
.admin-active .delete-overlay {
  opacity: 1;
  transform: scale(1);
}
.delete-btn {
  background-color: rgba(239, 68, 68, 0.9);
  color: #fff;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}
.delete-btn:hover {
  background-color: var(--danger-color);
  transform: scale(1.1);
}

/* ローディングスピナー */
.loading-spinner {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 0;
  color: var(--text-secondary);
}
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s infinite linear;
  margin: 0 auto 16px;
}

/* 空表示 */
.empty-gallery {
  grid-column: 1 / -1;
  text-align: center;
  padding: 100px 20px;
  color: var(--text-secondary);
  background-color: var(--panel-bg);
  border: 1px dashed var(--panel-border);
  border-radius: 16px;
}
.empty-gallery i {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  color: var(--accent-color);
}

/* 拡大表示ライトボックス */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(5, 5, 8, 0.9);
  backdrop-filter: var(--glass-blur);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}
.lightbox.show {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-primary);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 1010;
}
.lightbox-close:hover {
  background: rgba(255,255,255,0.15);
  transform: rotate(90deg);
}

/* ライトボックスのコンテンツ */
.lightbox-content {
  width: 90%;
  max-width: 1100px;
  height: 85vh;
  background: rgba(20, 20, 27, 0.7);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,0.6);
  transform: scale(0.95);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.lightbox.show .lightbox-content {
  transform: scale(1);
}

/* モーダル内 左ペイン: 画像エリア */
.lightbox-media-wrapper {
  background-color: #050507;
  display: flex;
  flex-direction: column;
  position: relative;
  height: 100%;
}
.lightbox-image-container {
  flex: 1;
  position: relative;
  width: 100%;
  min-height: 0; /* Flexbox突き抜け防止 */
}
.lightbox-image-container img {
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  width: calc(100% - 40px);
  height: calc(100% - 40px);
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: opacity 0.3s ease;
}
.lightbox-image-container img.fade {
  opacity: 0.3;
}

/* スライドショーコントロール */
.slideshow-controls {
  padding: 16px 24px;
  background: rgba(15, 15, 20, 0.8);
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  gap: 16px;
}
.slideshow-status {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
#slideshow-timer-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.progress-bar-container {
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0;
  background-color: var(--accent-color);
  transition: width 0.1s linear;
}

/* 矢印ナビゲーション */
.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-primary);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  opacity: 0;
}
.lightbox-image-container:hover .nav-btn {
  opacity: 1;
}
.nav-btn:hover {
  background-color: var(--accent-color);
  color: #000;
  border-color: var(--accent-color);
  box-shadow: 0 0 15px rgba(226, 184, 130, 0.4);
}
.prev-btn {
  left: 20px;
}
.next-btn {
  right: 20px;
}

/* モーダル内 右ペイン: 情報＆コメント */
.lightbox-info-sidebar {
  border-left: 1px solid rgba(255,255,255,0.08);
  display: flex;
  flex-direction: column;
  height: 100%;
  background: rgba(15, 15, 20, 0.4);
}
.sidebar-header {
  padding: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.title-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  margin-bottom: 4px;
}
.sidebar-header h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0;
  flex: 1;
}
.image-title-input {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--accent-color);
  border-radius: 6px;
  color: var(--text-primary);
  padding: 4px 8px;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  width: 100%;
  outline: none;
  flex: 1;
}
.title-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}
.title-action-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}
.title-action-btn:hover {
  color: var(--accent-color);
  background: rgba(255, 255, 255, 0.05);
}
.title-action-btn#title-save-btn {
  color: var(--success-color);
}
.title-action-btn#title-save-btn:hover {
  background: rgba(16, 185, 129, 0.1);
}
.title-action-btn#title-cancel-btn {
  color: var(--danger-color);
}
.title-action-btn#title-cancel-btn:hover {
  background: rgba(239, 68, 68, 0.1);
}
.title-action-btn i {
  width: 16px;
  height: 16px;
}
.hidden {
  display: none !important;
}
.image-filename {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: monospace;
}

/* コメントセクション */
.comments-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 24px;
}
.comments-section h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}
.comments-list {
  flex: 1;
  overflow-y: auto;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 8px;
}
.no-comments {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 40px 0;
  font-style: italic;
}

/* コメント吹き出し */
.comment-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 12px 16px;
  animation: slideUp 0.3s ease;
}
.comment-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.comment-sender {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-color);
}
.comment-time {
  font-size: 0.7rem;
  color: var(--text-secondary);
}
.comment-text {
  font-size: 0.85rem;
  color: var(--text-primary);
  word-break: break-word;
}

/* コメントフォーム */
.comment-form {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
}
.form-group {
  margin-bottom: 12px;
}
.comment-form input, .comment-form textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: var(--text-primary);
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  transition: var(--transition-fast);
}
.comment-form input:focus, .comment-form textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  background: rgba(255,255,255,0.08);
}
.comment-form textarea {
  resize: none;
}

/* フッター */
footer {
  border-top: 1px solid var(--panel-border);
  padding: 30px 24px;
  background-color: #0b0b0e;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  position: relative;
}
.footer-container p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin: 0;
}
.admin-hidden-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  opacity: 0.15; /* 非常に薄く表示して目立たなくする */
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
}
.admin-hidden-btn:hover {
  opacity: 0.8; /* ホバー時のみしっかりと見えるようにする */
  color: var(--accent-color);
  background: rgba(255, 255, 255, 0.05);
}
.admin-hidden-btn i {
  width: 14px;
  height: 14px;
}

/* キーフレームアニメーション */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 人物名フィルタータブ */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 30px;
  flex-wrap: wrap;
  margin-top: 10px;
  animation: fadeIn 0.5s ease-out;
}
.filter-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 8px 22px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
  backdrop-filter: var(--glass-blur);
  font-family: var(--font-sans);
}
.filter-btn:hover {
  border-color: var(--accent-color);
  color: var(--text-primary);
  background: rgba(226, 184, 130, 0.06);
  transform: translateY(-1px);
}
.filter-btn.active {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: #000;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(226, 184, 130, 0.25);
}

/* モーダル内 人物名（カテゴリ） */
.title-edit-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.image-person-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--accent-color);
  background: rgba(226, 184, 130, 0.06);
  border: 1px solid rgba(226, 184, 130, 0.15);
  padding: 5px 12px;
  border-radius: 20px;
  width: fit-content;
  margin-top: 4px;
  font-weight: 500;
}
.image-person-badge i {
  width: 12px;
  height: 12px;
  display: inline-flex;
}
.image-person-input {
  width: 100%;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--text-primary);
  outline: none;
  font-size: 0.85rem;
  transition: var(--transition-fast);
  margin-top: 4px;
}
.image-person-input:focus {
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   レスポンシブデザイン (スマホ・タブレット対応)
   ========================================================================== */

/* タブレット以下 */
@media (max-width: 900px) {
  .lightbox-content {
    display: flex;
    flex-direction: column;
    height: 92vh;
    width: 95%;
  }
  .lightbox-media-wrapper {
    flex: 1.8;
    min-height: 0;
  }
  .lightbox-image-container img {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
  }
  .lightbox-info-sidebar {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    border-left: none;
    border-top: 1px solid rgba(255,255,255,0.08);
    height: auto;
  }
  .lightbox-close {
    top: 16px;
    right: 16px;
    width: 38px;
    height: 38px;
  }
  .nav-btn {
    opacity: 0.6;
    width: 40px;
    height: 40px;
  }
  .prev-btn { left: 10px; }
  .next-btn { right: 10px; }
  .gallery-grid {
    column-count: 3;
    column-gap: 20px;
  }
  .gallery-item {
    margin-bottom: 20px;
  }
}

/* スマホ縦 */
@media (max-width: 600px) {
  .hero-section {
    height: 240px;
  }
  .hero-content h1 {
    font-size: 2.2rem;
  }
  .hero-content .subtitle {
    font-size: 0.8rem;
    letter-spacing: 4px;
  }
  .container {
    padding: 20px 16px;
  }
  .gallery-grid {
    column-count: 2;
    column-gap: 12px;
  }
  .gallery-item {
    border-radius: 8px;
    margin-bottom: 12px;
  }
  .admin-panel {
    padding: 16px;
  }
  .upload-area {
    padding: 20px;
  }
  .admin-grid-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  /* モーダル内の表示調整 */
  .lightbox-content {
    height: 96vh;
  }
  .lightbox-media-wrapper {
    flex: 7; /* 写真エリアを圧倒的に大きくする (70%の割合) */
    min-height: 0;
  }
  .lightbox-image-container img {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
  }
  .lightbox-info-sidebar {
    flex: 3; /* コメント/タイトルエリアは小さめに (30%の割合) */
    min-height: 0;
    overflow-y: auto;
  }
  .slideshow-controls {
    padding: 10px 16px; /* コントロールの隙間をコンパクトにして写真の最大表示幅をサポート */
  }
  .comments-section {
    padding: 16px;
  }
  .sidebar-header {
    padding: 16px;
  }
  .comments-list {
    margin-bottom: 12px;
  }
  .comment-form {
    padding-top: 12px;
  }
}