/* Windows Explorer-Style Breadcrumb Navigation with Dropdowns */
.breadcrumb-nav {
    background: rgba(26, 26, 26, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.75rem 0;
    position: sticky;
    top: 60px;
    z-index: 999;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.breadcrumb-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    flex-wrap: wrap;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.875rem;
    position: relative;
}

.breadcrumb-item a,
.breadcrumb-item span {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 0.35rem 0.6rem;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.breadcrumb-item a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 1);
}

.breadcrumb-item.active span {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* Wrapper for separator and dropdown to control positioning */
.breadcrumb-separator-wrapper {
    position: relative;
    display: inline-block;
}

.breadcrumb-separator {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    padding: 0.35rem 0.4rem;
    cursor: pointer;
    border-radius: 3px;
    user-select: none;
    transition: all 0.2s ease;
}

.breadcrumb-separator:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}

.breadcrumb-separator.active {
    background: rgba(255, 255, 255, 0.15);
}

/* Dropdown menu */
.breadcrumb-dropdown {
    position: absolute;
    top: calc(100% + 5px);
    left: 0;
    background: rgba(30, 30, 30, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    width: max-content;
    max-width: 500px;
    padding: 6px;
    display: none;
    z-index: 1000;
    animation: dropdownFade 0.15s ease-out;
    max-height: calc(6 * 2.25rem + 12px);
    overflow-y: auto;
    overflow-x: hidden;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.breadcrumb-dropdown.show {
    display: block;
}

.breadcrumb-dropdown-item {
    padding: 0.4rem 0.75rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: block;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-size: 0.8125rem;
    white-space: nowrap;
    line-height: 1.4;
}

.breadcrumb-dropdown-item:hover {
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 1);
}

.breadcrumb-dropdown-item.active {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 1);
    font-weight: 500;
}

/* Custom scrollbar for dropdown */
.breadcrumb-dropdown::-webkit-scrollbar {
    width: 6px;
}

.breadcrumb-dropdown::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.breadcrumb-dropdown::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.breadcrumb-dropdown::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Responsive breadcrumb */
@media (max-width: 768px) {
    .breadcrumb-container {
        font-size: 0.75rem;
        gap: 0.2rem;
    }

    .breadcrumb-item a,
    .breadcrumb-item span {
        padding: 0.25rem 0.4rem;
    }

    .breadcrumb-separator {
        padding: 0.25rem 0.3rem;
    }

    .breadcrumb-dropdown {
        min-width: 150px;
    }
}