/* ==========================================================================
   Visual Design Accordion Section (3:4 Video Showcase)
   ========================================================================== */

.visual-accordion-container {
    display: flex;
    gap: 16px;
    width: 100%;
    height: 620px;
    margin: 2rem 0 4.5rem 0;
    box-sizing: border-box;
}

.visual-accordion-item {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: #080808;
    cursor: pointer;
    box-sizing: border-box;
    transition: flex 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.visual-accordion-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Hover expansion effect on desktop */
@media (min-width: 1025px) {
    .visual-accordion-item:hover {
        flex: 3.2;
        border-color: rgba(227, 214, 197, 0.45);
        box-shadow: 0 20px 48px rgba(0, 0, 0, 0.85), 0 0 24px rgba(227, 214, 197, 0.08);
    }
    
    .visual-accordion-item:hover video {
        transform: scale(1.02);
    }
}

/* Card details overlay */
.accordion-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.45) 45%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    z-index: 2;
    pointer-events: none;
    transition: background 0.5s ease;
}

.visual-accordion-item:hover .accordion-item-overlay {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0.1) 100%);
}

.accordion-item-overlay .scene-num {
    font-family: var(--font-title, 'Cinzel'), serif;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: rgba(227, 214, 197, 0.8);
    margin-bottom: 8px;
    transform: translateY(0);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), color 0.5s;
}

.accordion-item-overlay h3 {
    font-family: 'AlibabaPuHuiTi-SemiBold', sans-serif;
    font-size: 1.15rem;
    color: #ffffff;
    margin: 0 0 6px 0;
    opacity: 0.7;
    transform: translateY(12px);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

@media (min-width: 1025px) {
    .visual-accordion-item:hover .accordion-item-overlay h3 {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fullscreen Play Button */
.accordion-fs-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(18, 18, 18, 0.5);
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.4s, transform 0.4s, background 0.3s, border-color 0.3s, color 0.3s;
    z-index: 5;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.accordion-fs-btn svg {
    width: 18px;
    height: 18px;
}

@media (min-width: 1025px) {
    .visual-accordion-item:hover .accordion-fs-btn {
        opacity: 1;
        transform: scale(1);
    }
}

.accordion-fs-btn:hover {
    background: rgba(227, 214, 197, 0.95);
    border-color: rgba(227, 214, 197, 1);
    color: #121212;
    box-shadow: 0 0 12px rgba(227, 214, 197, 0.3);
}

/* ==========================================================================
   Mobile Responsive Adjustments (Snap Horizontal Scroll)
   ========================================================================== */

@media (max-width: 1024px) {
    .visual-accordion-container {
        height: auto;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding: 10px 4vw 24px 4vw;
        margin-bottom: 2.5rem;
        gap: 16px;
        scrollbar-width: none; /* Hide scrollbar for Firefox */
        width: 100vw;
        margin-left: calc(-4vw); /* Span edge to edge visually */
    }
    
    .visual-accordion-container::-webkit-scrollbar {
        display: none; /* Hide scrollbar for Chrome/Safari */
    }
    
    .visual-accordion-item {
        flex: 0 0 74vw; /* Display active card and partial adjacent ones */
        height: auto;
        aspect-ratio: 3/4;
        scroll-snap-align: center;
        border-radius: 14px;
        border-color: rgba(255, 255, 255, 0.12);
    }
    
    .visual-accordion-item:hover {
        flex: 0 0 74vw;
        transform: none;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    }
    
    .visual-accordion-item:hover video {
        transform: none;
    }
    
    .accordion-item-overlay {
        padding: 16px;
    }
    
    .accordion-item-overlay h3 {
        font-size: 1rem;
        opacity: 1;
        transform: none;
    }
    
    .accordion-fs-btn {
        opacity: 1;
        transform: scale(1);
        top: 16px;
        right: 16px;
        width: 36px;
        height: 36px;
    }
    
    .accordion-fs-btn svg {
        width: 16px;
        height: 16px;
    }
}