/*
 * AI2U Unified Breadcrumbs Component
 * Consistent breadcrumb navigation across all pages
 * Uses Spellbook theme variables and Storm animations
 */

.ai2u-breadcrumbs {
    padding: 1rem 0;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(
        135deg,
        var(--surface-color) 0%,
        color-mix(in srgb, var(--surface-color) 95%, var(--primary-color)) 100%
    );
    border-radius: 8px;
    margin-top: 1rem;
}

.ai2u-breadcrumbs nav {
    max-width: 100%;
    margin: 0;
    padding: 0 1rem;
}

.ai2u-breadcrumbs ol {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.ai2u-breadcrumbs li {
    display: flex;
    align-items: center;
    position: relative;
}

/* Breadcrumb separators */
.ai2u-breadcrumbs li:not(:last-child)::after {
    content: "›";
    color: var(--text-secondary-color);
    margin-left: 0.75rem;
    font-size: 1.1em;
    font-weight: 600;
    opacity: 0.6;
}

/* Breadcrumb links */
.ai2u-breadcrumbs a {
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    position: relative;
    overflow: hidden;
}

.ai2u-breadcrumbs a:hover {
    background: var(--primary-color-25);
    color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px var(--primary-color-25);
}

/* Active/current breadcrumb */
.ai2u-breadcrumbs .active {
    color: var(--text-color);
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    background: var(--accent-color-25);
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Icons in breadcrumbs */
.ai2u-breadcrumbs i {
    font-size: 0.875em;
    opacity: 0.8;
}

.ai2u-breadcrumbs .active i {
    opacity: 1;
    color: var(--accent-color);
}

/* Home icon special styling */
.ai2u-breadcrumbs .breadcrumb-home {
    font-size: 1em;
}

.ai2u-breadcrumbs .breadcrumb-home:hover {
    background: var(--success-color-25);
    color: var(--success-color);
    box-shadow: 0 2px 8px var(--success-color-25);
}

/* Storm animation integration */
.ai2u-breadcrumbs[data-storm] {
    animation-delay: 0.1s;
}

.ai2u-breadcrumbs li[data-storm-hover] {
    transition: transform 0.2s ease;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .ai2u-breadcrumbs {
        padding: 0.75rem 0;
        margin-bottom: 1rem;
    }

    .ai2u-breadcrumbs nav {
        padding: 0 0.75rem;
    }

    .ai2u-breadcrumbs ol {
        font-size: 0.8rem;
        gap: 0.25rem;
    }

    .ai2u-breadcrumbs li:not(:last-child)::after {
        margin-left: 0.5rem;
        margin-right: 0.25rem;
    }

    /* Stack breadcrumbs on very small screens if needed */
    @media (max-width: 480px) {
        .ai2u-breadcrumbs ol {
            flex-direction: column;
            align-items: flex-start;
            gap: 0.5rem;
        }

        .ai2u-breadcrumbs li:not(:last-child)::after {
            display: none;
        }

        .ai2u-breadcrumbs li {
            width: 100%;
        }

        .ai2u-breadcrumbs a,
        .ai2u-breadcrumbs .active {
            width: 100%;
            justify-content: flex-start;
        }
    }
}

/* Canadian theme enhancements */
.ai2u-breadcrumbs.canadian-style {
    background: linear-gradient(
        135deg,
        var(--surface-color) 0%,
        color-mix(in srgb, var(--surface-color) 90%, var(--accent-color)) 100%
    );
    border-left: 3px solid var(--accent-color);
}

.ai2u-breadcrumbs.canadian-style .breadcrumb-flag {
    font-size: 1.1em;
    margin-right: 0.25rem;
}

/* Blog-specific breadcrumb styling */
.ai2u-breadcrumbs.blog-breadcrumbs {
    background: linear-gradient(
        135deg,
        var(--surface-color) 0%,
        color-mix(in srgb, var(--surface-color) 92%, var(--secondary-color)) 100%
    );
    border-left: 3px solid var(--secondary-color);
}

.ai2u-breadcrumbs.blog-breadcrumbs .breadcrumb-category {
    background: var(--secondary-color-25);
    color: var(--secondary-color);
    padding: 0.125rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Documentation breadcrumb styling */
.ai2u-breadcrumbs.docs-breadcrumbs {
    background: linear-gradient(
        135deg,
        var(--surface-color) 0%,
        color-mix(in srgb, var(--surface-color) 92%, var(--info-color)) 100%
    );
    border-left: 3px solid var(--info-color);
}

/* Animation keyframes for breadcrumb interactions */
@keyframes breadcrumb-highlight {
    0% { background: transparent; }
    50% { background: var(--primary-color-25); }
    100% { background: transparent; }
}

.ai2u-breadcrumbs a.highlighted {
    animation: breadcrumb-highlight 0.6s ease;
}

/* Accessibility improvements */
.ai2u-breadcrumbs nav[aria-label="breadcrumb"] {
    /* Ensure proper labeling for screen readers */
}

.ai2u-breadcrumbs a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    background: var(--primary-color-25);
}

.ai2u-breadcrumbs .active:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .ai2u-breadcrumbs {
        border-bottom: 2px solid var(--text-color);
        background: var(--background-color);
    }

    .ai2u-breadcrumbs a {
        border: 1px solid var(--primary-color);
    }

    .ai2u-breadcrumbs .active {
        border: 2px solid var(--accent-color);
        background: var(--accent-color-25);
    }
}

/* Print styles */
@media print {
    .ai2u-breadcrumbs {
        background: none;
        border: 1px solid #000;
        padding: 0.5rem;
    }

    .ai2u-breadcrumbs a {
        color: #000;
        text-decoration: underline;
    }

    .ai2u-breadcrumbs .active {
        font-weight: bold;
        background: none;
    }
}