/* ==========================================
   カラーテーマ設定
   色を変更するときはここを編集
   ========================================== */
:root {
  --color-bg: #080808;
  --color-panel: #111111;
  --color-panel-light: #292929;
  --color-panel-hover: #383838;

  --color-accent: #E76F51;
  --color-accent-hover: #F08A70;
  --color-accent-soft: rgba(231, 111, 81, 0.15);
  --color-accent-border: rgba(231, 111, 81, 0.4);

  --color-text: #FFFFFF;
  --color-text-sub: #B0B0B0;
  --color-text-muted: #777777;

  --color-border: #2A2A2A;
  --color-border-light: #444444;
}




/* ==========================================
   全体設定（リセット・ベースデザイン）
   ========================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* リンク共通設定 */
a {
  color: var(--color-text-sub);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ヘッダーとタブをまとめて固定 */
.fixed-header-area {
  position: sticky;
  top: 0;
  z-index: 1000;
}

/* ==========================================
   ヘッダーエリア
   ========================================== */
.site-header {
  background-color: var(--color-panel);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 16px;
  text-align: center;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.site-title {
  font-size: 1.5rem;
  font-weight: bold;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: 8px;
}

.official-notice {
  font-size: 0.85rem;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid var(--color-accent-border);
}

/* 上部固定タブメニュー */
.top-tab-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--color-panel-light);
  border-bottom: 1px solid var(--color-border-light);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}

.top-tab-nav::-webkit-scrollbar {
  display: none;
}

.top-tab-nav a {
  display: block;
  padding: 14px 18px;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.85rem;
  border-bottom: 3px solid transparent;
}

.top-tab-nav a:hover {
  color: var(--color-text);
  background: var(--color-panel-hover);
  border-bottom-color: var(--color-accent);
}

@media (max-width: 600px) {
  .top-tab-nav {
    justify-content: flex-start;
  }

  .top-tab-nav a {
    padding: 12px 14px;
    font-size: 0.78rem;
  }
}

/* ==========================================
   メインコンテンツ
   ========================================== */
.main-content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 16px;
}

/* ==========================================
   フッター
   ========================================== */
.site-footer {
  background-color: var(--color-panel);
  border-top: 1px solid var(--color-border);
  padding: 24px 16px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-nav {
  margin-bottom: 12px;
}

.footer-nav a {
  margin: 0 8px;
}

.copyright {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

/* ==========================================
   検索・フィルターエリア
   ========================================== */
.search-filter-section {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 24px;
}

/* 検索バー */
.search-box-row {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.search-input {
  flex: 1;
  background-color: var(--color-bg);
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  padding: 10px 14px;
  color: var(--color-text);
  font-size: 0.95rem;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.btn-clear {
  background-color: var(--color-panel-light);
  color: var(--color-text);
  border: none;
  border-radius: 6px;
  padding: 0 16px;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
}

.btn-clear:hover {
  background-color: var(--color-panel-hover);
}

/* フィルターグループ */
.filter-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.filter-label {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  font-weight: bold;
}

/* ボタン群 */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn-filter,
.btn-select-modal {
  background-color: var(--color-bg);
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-filter:hover,
.btn-select-modal:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

/* 選択中ボタン */
.btn-filter.active {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
  font-weight: bold;
}

/* 選択式モーダル */
.filter-selects-row {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  gap: 8px;
  margin: 4px 0;
}

.btn-select-modal {
  border-radius: 6px;
  background-color: #1A1A1A;
}

/* オプションチェックボックス */
.filter-option {
  margin-top: 4px;
}

.checkbox-label {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--color-accent);
}

/* ツールチップ */
.help-tooltip-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background-color: var(--color-border-light);
  color: var(--color-text-sub);
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: bold;
  cursor: help;
  position: relative;
  flex-shrink: 0;
}

.help-tooltip-trigger:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.help-tooltip-box {
  visibility: hidden !important;
  opacity: 0 !important;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 130%;
  width: 220px;
  background-color: #222;
  color: var(--color-text);
  text-align: left;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--color-border-light);
  font-size: 0.75rem;
  font-weight: normal;
  line-height: 1.4;
  z-index: 100;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.help-tooltip-trigger:hover .help-tooltip-box {
  visibility: visible !important;
  opacity: 1 !important;
}

/* 動画時間スクロール */
.filter-scrollable {
  overflow-x: auto;
  padding-bottom: 4px;
  white-space: nowrap;
}

/* 展開式フィルターボタン */
.btn-expand {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.btn-expand .expand-icon {
  color: var(--color-bg);
}

/* ==========================================
   動画カード一覧
   ========================================== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.video-card {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.video-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

/* サムネイル */
.thumbnail-wrapper {
  width: 100% !important;
  aspect-ratio: 16 / 9 !important;
  background-color: #000000 !important;
  position: relative !important;
  overflow: hidden !important;
  display: block !important;
}

.thumbnail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 動画時間バッジ */
.video-duration-badge {
  position: absolute !important;
  bottom: 8px !important;
  right: 8px !important;
  background-color: rgba(0, 0, 0, 0.85) !important;
  color: var(--color-text) !important;
  font-size: 11px !important;
  font-weight: bold !important;
  padding: 2px 6px !important;
  border-radius: 4px !important;
  z-index: 10 !important;
  display: inline-block !important;
  pointer-events: none !important;
}

/* 動画タイプバッジ */
.video-type-badge {
  position: absolute !important;
  top: 8px !important;
  left: 8px !important;
  background-color: var(--color-accent) !important; 
  color: var(--color-bg) !important;                
  font-size: 11px !important;
  font-weight: bold !important;
  padding: 3px 6px !important;
  border-radius: 4px !important;
  z-index: 10 !important;
  display: inline-block !important;
}

/* カードテキスト */
.card-content {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.video-date {
  font-size: 0.75rem;
  color: var(--color-text-sub);
}

.video-title {
  font-size: 0.95rem;
  font-weight: bold;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* メンバー・タグ */
.video-members,
.video-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.member-badge {
  background-color: #1A1A1A;
  color: #D0D0D0;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid #333333;
}

.tag-badge {
  background-color: var(--color-accent-soft);
  color: var(--color-accent-hover);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--color-accent-border);
}

/* 動画詳細のクリックできるバッジ */
.modal-clickable-badge {
  display: inline-block;
  background-color: #1A1A1A;
  color: #D0D0D0;
  font-size: 0.8rem;
  padding: 3px 10px;
  border-radius: 4px;
  border: 1px solid #333333;
  margin: 2px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.modal-clickable-badge:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}