.detail-panel {
    position: fixed;
    top: 80px;
    left: 480px;
    width: 420px;
    height: calc(100vh - 80px);
    background: var(--color-surface, #ffffff);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.12);
    border-radius: 0 16px 16px 0;
    z-index: 1100;
    overflow: hidden;
    transform: translateX(-100%);
    opacity: 0;
    pointer-events: none;
    transition:
        transform 0.32s cubic-bezier(0.16, 1, 0.3, 1),
        opacity 0.32s ease-out,
        left 0.3s ease;
}

.detail-panel.is-open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

.detail-panel--sidebar-collapsed {
    left: 0;
}

.detail-panel__scroll {
    height: 100%;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
}

.detail-panel__close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
    border: none;
    cursor: pointer;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--color-text-primary, #333);
    transition: background 0.15s ease, transform 0.1s ease;
}

.detail-panel__close:hover {
    background: #ffffff;
}

.detail-panel__close:active {
    transform: scale(0.95);
}

.detail-panel__close:focus-visible {
    outline: 2px solid var(--color-secondary, #28a3b3);
    outline-offset: 2px;
}

.detail-panel__hero {
    width: 100%;
    aspect-ratio: 16 / 10;
    min-height: 0;
    overflow: hidden;
    background: var(--color-surface-alt, #f0f0f0);
}

.detail-panel__hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.detail-panel__body {
    padding: 20px 24px 32px;
}

.detail-panel__title {
    margin: 0 0 10px;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-primary, #004b58);
}

.detail-panel__rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    font-size: 14px;
}

.detail-panel__stars {
    color: #f4b942;
    letter-spacing: 2px;
}

.detail-panel__reviews {
    color: var(--color-text-secondary, #666);
}

.detail-panel__category {
    margin: 0 0 20px;
    color: var(--color-secondary, #28a3b3);
    font-size: 14px;
    font-weight: 500;
}

.detail-panel__actions {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border, #eee);
}

.detail-panel__action {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    background: var(--color-surface-alt, #f5f7f8);
    border: 1px solid var(--color-border, #e5e8eb);
    border-radius: 10px;
    color: var(--color-primary, #004b58);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s ease, transform 0.1s ease;
}

.detail-panel__action:hover {
    background: var(--color-border, #ecf2f3);
    text-decoration: none;
    color: var(--color-primary, #004b58);
}

.detail-panel__action:active {
    transform: scale(0.97);
}

.detail-panel__action i {
    font-size: 18px;
    color: var(--color-secondary, #28a3b3);
}

.detail-panel__info {
    margin-bottom: 24px;
}

.detail-panel__info-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    font-size: 14px;
    color: var(--color-text-primary, #333);
}

.detail-panel__info-row i {
    color: var(--color-secondary, #28a3b3);
    margin-top: 2px;
    flex-shrink: 0;
}

.detail-panel__cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px;
    background: var(--color-secondary, #28a3b3);
    color: #ffffff;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    transition: background 0.15s ease;
}

.detail-panel__cta:hover {
    background: var(--color-primary, #1f8b99);
    color: #ffffff;
    text-decoration: none;
}

@media (max-width: 768px) {
    .detail-panel {
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 80vh;
        border-radius: 16px 16px 0 0;
        transform: translateY(100%);
        transition:
            transform 0.32s cubic-bezier(0.16, 1, 0.3, 1),
            opacity 0.32s ease-out;
    }

    .detail-panel.is-open {
        transform: translateY(0);
    }

    .detail-panel--sidebar-collapsed {
        left: 0;
    }

    .detail-panel::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background: #ccc;
        border-radius: 2px;
        z-index: 3;
    }

    .detail-panel__close {
        top: 20px;
    }
}