/* ===================================
   トップページカラーテーマのオーバーライド
   =================================== */

:root {
    --coen-red: #E60012;
    --primary-white: #FFFFFF;
    --dark-gray: #2A2A2A;
    --light-gray: #F5F5F5;
    --accent-red: #DA291C;
    --text-primary: #2A2A2A;
    --text-secondary: #666666;
    --border-color: #E0E0E0;
}

body {
    background-color: var(--primary-white);
    color: var(--text-primary);
    padding-top: 124px; /* 80px (navbar) + 44px (breadcrumb) */
}

/* パンくずリスト（白赤基調） */
.breadcrumb-container {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 999;
    padding: 12px 0;
}

.breadcrumb {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--coen-red);
}

.breadcrumb-separator {
    color: var(--text-secondary);
    user-select: none;
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 700;
}

/* ===================================
   過去大会セクション（白赤基調対応）
   =================================== */

.past-events-section {
    background: var(--primary-white);
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.title-en {
    display: block;
    font-family: 'Rajdhani', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    letter-spacing: 0.15em;
    color: var(--coen-red);
    margin-bottom: 10px;
}

.title-ja {
    display: block;
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.2em;
}

/* トーナメントグループ */
.tournament-group {
    margin-bottom: 80px;
}

.tournament-group:last-child {
    margin-bottom: 0;
}

/* トーナメントヘッダー（白赤基調） */
.tournament-header {
    background: linear-gradient(135deg, var(--light-gray), var(--primary-white));
    border: 2px solid var(--border-color);
    border-left: 6px solid var(--coen-red);
    padding: 30px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.tournament-header:hover {
    border-left-width: 8px;
    box-shadow: 0 10px 30px rgba(230, 0, 18, 0.1);
}

.tournament-header.valorant-theme {
    border-left-color: #FF4655;
}

.tournament-header.overwatch-theme {
    border-left-color: #F99E1A;
}

.tournament-header.apex-theme {
    border-left-color: #E60012;
}

.tournament-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--coen-red);
    color: var(--primary-white);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 15px;
}

.tournament-header.valorant-theme .tournament-badge {
    background: #FF4655;
}

.tournament-header.overwatch-theme .tournament-badge {
    background: #F99E1A;
}

.tournament-header.apex-theme .tournament-badge {
    background: #E60012;
}

.tournament-game-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: 0.05em;
    margin-bottom: 15px;
}

.tournament-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
}

.meta-item svg {
    flex-shrink: 0;
}

/* 過去イベントグリッド */
.past-events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* YouTubeカード */
.youtube-card {
    background: var(--light-gray);
    border: 1px solid var(--border-color);
    border-radius: 0;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    display: block;
}

.youtube-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(230, 0, 18, 0.15);
    border-color: var(--coen-red);
}

.youtube-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: var(--dark-gray);
    overflow: hidden;
}

.youtube-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.youtube-card:hover .youtube-thumbnail img {
    transform: scale(1.05);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
}

.youtube-card:hover .play-button {
    transform: translate(-50%, -50%) scale(1.1);
}

.youtube-info {
    padding: 20px;
}

.youtube-info h4 {
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.youtube-channel {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 動画埋め込みカード */
.video-embed-card {
    background: var(--light-gray);
    border: 1px solid var(--border-color);
    border-radius: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.video-embed-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(230, 0, 18, 0.15);
    border-color: var(--coen-red);
}

.video-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: var(--dark-gray);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-info {
    padding: 20px;
}

.video-info h4 {
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.video-channel {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* フッター（白赤基調） */
.footer {
    background: var(--dark-gray);
    color: var(--primary-white);
    padding: 60px 0;
}

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

.footer-copyright {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ===================================
   レスポンシブ対応
   =================================== */

@media (max-width: 768px) {
    body {
        padding-top: 118px;
    }

    .breadcrumb-container {
        padding: 10px 0;
    }
    
    .breadcrumb {
        padding: 0 20px;
        font-size: 0.75rem;
    }

    .past-events-section {
        padding: 60px 0;
    }

    .tournament-header {
        padding: 20px;
    }

    .tournament-meta {
        gap: 15px;
    }

    .past-events-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .tournament-group {
        margin-bottom: 60px;
    }
}

/* 外部リンクバッジ */
.external-link-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(230, 0, 18, 0.9);
    backdrop-filter: blur(10px);
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.3s ease;
    z-index: 2;
}

.external-link-badge svg {
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.youtube-card:hover .external-link-badge {
    opacity: 1;
    transform: scale(1);
}