/* =================================
   活動卡片組件樣式
   ================================= */

/* 活動區域樣式 */
.activities-section .section-title {
    font-size: var(--font-4xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.activities-section .section-subtitle {
    font-size: var(--font-xl);
    color: var(--text-secondary);
    margin-bottom: 0;
}

.no-activities {
    padding: var(--spacing-3xl);
    color: var(--text-secondary);
}

.no-activities i {
    font-size: 4rem;
    color: #ddd;
}

/* 活動輪播容器 */
.activity-carousel-container {
    position: relative;
    max-width: 100%;
    margin: 0 auto 4rem auto;
    padding: 0 var(--spacing-md);
    transform: translateZ(0);
}

.activities-section .container {
    max-width: 1400px;
}

/* 活動輪播指示器 */
#activityCarousel .carousel-indicators {
    bottom: -50px;
    margin-bottom: 0;
}

#activityCarousel .carousel-indicators button {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-circle);
    background-color: var(--border-color);
    border: none;
    margin: 0 4px;
    transition: all var(--transition-smooth);
    opacity: 0.6;
}

#activityCarousel .carousel-indicators button.active {
    background-color: var(--primary-color);
    transform: scale(1.3);
    opacity: 1;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

#activityCarousel .carousel-indicators button:hover {
    opacity: 0.8;
    transform: scale(1.1);
}

/* 活動輪播控制按鈕 */
#activityCarousel .carousel-control-prev,
#activityCarousel .carousel-control-next {
    width: 50px;
    height: 50px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-circle);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

#activityCarousel .carousel-control-prev { left: -25px; }
#activityCarousel .carousel-control-next { right: -25px; }

#activityCarousel .carousel-control-prev:hover,
#activityCarousel .carousel-control-next:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-50%) scale(1.1);
}

#activityCarousel .carousel-control-prev-icon,
#activityCarousel .carousel-control-next-icon {
    width: 20px;
    height: 20px;
    background-size: 20px 20px;
    filter: invert(1);
}

/* 現代化活動卡片 */
.modern-activity-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-bounce);
    margin: 0 auto;
    max-width: 1100px;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    position: relative;
    will-change: transform, box-shadow;
}

.modern-activity-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-subtle);
    opacity: 0;
    transition: opacity var(--transition-bounce);
    pointer-events: none;
    z-index: var(--z-layer-1);
}

.modern-activity-card:hover {
    transform: translateY(-6px) scale(1.005);
    box-shadow: var(--shadow-lg);
    border-color: rgba(102, 126, 234, 0.12);
}

.modern-activity-card:hover::before {
    opacity: 1;
}

/* 現代化活動圖片 */
.activity-image-modern {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: 0;
    background-color: var(--bg-light);
    flex-shrink: 0;
}

/* 背景延伸圖片 (模糊效果填補空白) */
.activity-bg-extended {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: blur(10px) brightness(0.6) saturate(1.4);
    transform: scale(1.2);
    z-index: var(--z-layer-1);
    transition: all var(--transition-bounce);
}

.activity-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition-bounce);
    filter: brightness(0.95) saturate(0.9);
    z-index: var(--z-layer-2);
}

.modern-activity-card:hover .activity-img {
    transform: scale(1.05);
    filter: brightness(1.05) saturate(1.1);
}

.modern-activity-card:hover .activity-bg-extended {
    filter: blur(8px) brightness(0.7) saturate(1.5);
    transform: scale(1.25);
}

/* 底部漸層遮罩 */
.activity-image-gradient {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.1) 30%,
        transparent 100%
    );
    z-index: var(--z-layer-3);
    pointer-events: none;
}

/* 優雅的圖片懸停效果 */
.elegant-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    opacity: 0;
    transition: all var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
    z-index: var(--z-layer-4);
}

.modern-activity-card:hover .elegant-image-overlay {
    opacity: 1;
}

.overlay-content {
    text-align: center;
    color: var(--bg-white);
    z-index: var(--z-layer-2);
    transform: translateY(10px);
    transition: transform var(--transition-smooth);
}

.modern-activity-card:hover .overlay-content {
    transform: translateY(0);
}

.overlay-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-xs);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-base);
}

.modern-activity-card:hover .overlay-icon {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
}

.overlay-icon i {
    font-size: var(--font-xl);
    color: var(--bg-white);
}

.overlay-text {
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    letter-spacing: 0.5px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* 現代化活動內容 */
.activity-content-modern {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    height: 400px;
    width: 100%;
    flex-shrink: 0;
}

.activity-title-modern {
    color: var(--text-primary);
    font-size: var(--font-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-tight);
}

.activity-description-modern {
    color: var(--text-secondary);
    font-size: var(--font-base);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 活動詳細資訊 */
.activity-meta-info {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--gradient-subtle);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.meta-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: var(--font-md);
    flex-shrink: 0;
}

.location-info .meta-icon { background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); }
.time-info .meta-icon { background: linear-gradient(135deg, var(--success-color), var(--success-light)); }

.meta-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.meta-label {
    font-size: var(--font-xs);
    color: var(--primary-color);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-value {
    font-size: var(--font-sm);
    color: var(--text-primary);
    font-weight: var(--font-semibold);
    line-height: var(--line-height-tight);
}

/* 現代化進度條 */
.activity-progress-modern {
    margin-bottom: var(--spacing-lg);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.progress-label {
    font-size: var(--font-xs);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
}

.progress-percentage {
    font-size: var(--font-xs);
    color: var(--primary-color);
    font-weight: var(--font-semibold);
}

.progress-bar-modern {
    height: 6px;
    background: var(--bg-muted);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    transition: width 0.8s ease;
}

/* 現代化按鈕 */
.activity-actions-modern {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
    position: relative;
    z-index: var(--z-layer-2);
}

.btn-modern {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 14px;
    text-decoration: none;
    font-weight: var(--font-semibold);
    font-size: var(--font-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-smooth);
    border: 2px solid;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left var(--transition-bounce);
}

.btn-modern:hover::before {
    left: 100%;
}

.btn-modern.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: rgba(102, 126, 234, 0.8);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.btn-modern.primary:hover {
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 1);
    color: white;
    text-decoration: none;
}

.btn-modern.secondary {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(102, 126, 234, 0.3);
    color: #667eea;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.btn-modern.secondary:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #5a67d8;
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.5);
    text-decoration: none;
}

.btn-modern i {
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.btn-modern:hover i {
    transform: scale(1.1);
}

/* CTA Section */
.cta-section {
    background: var(--bg-white);
    color: var(--text-primary);
}

.cta-title {
    font-size: var(--font-3xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: var(--font-lg);
    margin-bottom: 0;
    line-height: var(--line-height-relaxed);
}

.cta-section .btn {
    padding: 12px 25px;
    font-size: var(--font-md);
    border-radius: 25px;
    transition: all var(--transition-base);
}

.cta-section .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* 響應式設計 */
@media (max-width: 992px) {
    .modern-activity-card {
        height: auto;
    }
    
    .activity-image-modern {
        height: 300px;
    }
    
    .activity-content-modern {
        padding: var(--spacing-lg);
        height: auto;
        min-height: 300px;
    }
    
    .activity-title-modern {
        font-size: var(--font-xl);
    }
    
    .btn-modern {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-sm);
    }
}

@media (max-width: 768px) {
    .modern-activity-card {
        height: auto;
        margin: 0 var(--spacing-md);
    }
    
    .activity-content-modern {
        padding: var(--spacing-lg);
        height: auto;
        min-height: 250px;
    }
    
    .activity-meta-info {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }
    
    .btn-modern {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-xs);
    }
    
    .cta-title {
        font-size: var(--font-2xl);
    }
    
    .cta-description {
        font-size: var(--font-md);
    }
    
    #activityCarousel .carousel-control-prev,
    #activityCarousel .carousel-control-next {
        display: none;
    }
    
    #activityCarousel .carousel-indicators {
        bottom: -30px;
    }
    
    /* 現代化活動卡片響應式 */
    .modern-activity-card .row {
        flex-direction: column;
    }
    
    .activity-image-modern {
        height: 200px;
    }
    
    .overlay-icon {
        width: 50px;
        height: 50px;
    }
    
    .overlay-text {
        font-size: var(--font-sm);
    }
    
    .activity-actions-modern {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .meta-item {
        gap: var(--spacing-xs);
    }
    
    .meta-icon {
        width: 32px;
        height: 32px;
    }
    
    .meta-label {
        font-size: var(--font-xs);
    }
    
    .meta-value {
        font-size: var(--font-xs);
    }
    
    .cta-section .btn {
        display: block;
        margin: var(--spacing-xs) 0;
        width: 100%;
    }
    
    .activity-carousel-container {
        padding: 0 var(--spacing-md);
    }
    
    .modern-activity-card {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .modern-activity-card .row {
        flex-direction: column;
    }
    
    .activity-image-modern {
        height: 200px;
    }
    
    .activity-actions-modern {
        flex-direction: column;
    }
    
    .btn-modern {
        padding: var(--spacing-sm);
    }
}