/**
 * Universal Breadcrumb Navigation Styles
 * Professional breadcrumb design for all calculator pages
 */

/* Breadcrumb Navigation */
.breadcrumb-nav {
    margin-bottom: var(--spacing-xl, 2rem);
    padding: var(--spacing-base, 1rem) 0;
    border-bottom: 1px solid var(--border-color, #DEB887);
    background: linear-gradient(135deg, #F5F5DC 0%, #FFFFFF 100%);
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.875rem;
    line-height: 1.5;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    color: var(--text-muted, #6B7280);
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin: 0 var(--spacing-sm, 0.5rem);
    color: var(--text-muted, #6B7280);
    font-weight: 400;
}

.breadcrumb-item a {
    color: var(--primary-color, #8B4513);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs, 0.25rem);
    padding: var(--spacing-xs, 0.25rem) var(--spacing-sm, 0.5rem);
    border-radius: 4px;
}

.breadcrumb-item a:hover {
    color: var(--primary-dark, #654321);
    background: rgba(139, 69, 19, 0.1);
    text-decoration: none;
}

.breadcrumb-item a:focus {
    outline: 2px solid var(--primary-color, #8B4513);
    outline-offset: 2px;
}

.breadcrumb-item.active {
    color: var(--primary-dark, #654321);
    font-weight: 600;
}

.breadcrumb-item i {
    font-size: 0.875rem;
    margin-right: var(--spacing-xs, 0.25rem);
}

/* Responsive Design */
@media (max-width: 768px) {
    .breadcrumb-nav {
        padding: var(--spacing-sm, 0.5rem) 0;
        margin-bottom: var(--spacing-base, 1rem);
    }
    
    .breadcrumb {
        font-size: 0.8rem;
    }
    
    .breadcrumb-item:not(:last-child)::after {
        margin: 0 var(--spacing-xs, 0.25rem);
    }
    
    .breadcrumb-item a {
        padding: var(--spacing-xs, 0.25rem);
    }
}

@media (max-width: 480px) {
    .breadcrumb {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs, 0.25rem);
    }
    
    .breadcrumb-item:not(:last-child)::after {
        content: '↓';
        margin: 0;
        align-self: flex-start;
        margin-left: var(--spacing-base, 1rem);
    }
    
    .breadcrumb-item {
        width: 100%;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .breadcrumb-nav {
        background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
        border-bottom-color: #444;
    }
    
    .breadcrumb-item {
        color: #ccc;
    }
    
    .breadcrumb-item:not(:last-child)::after {
        color: #ccc;
    }
    
    .breadcrumb-item a {
        color: #DEB887;
    }
    
    .breadcrumb-item a:hover {
        color: #F5DEB3;
        background: rgba(222, 184, 135, 0.1);
    }
    
    .breadcrumb-item.active {
        color: #F5DEB3;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .breadcrumb-nav {
        border-bottom-width: 2px;
        border-bottom-color: #000;
    }
    
    .breadcrumb-item a {
        color: #000;
        border: 1px solid transparent;
    }
    
    .breadcrumb-item a:hover,
    .breadcrumb-item a:focus {
        border-color: #000;
        background: #fff;
    }
    
    .breadcrumb-item.active {
        color: #000;
        font-weight: 700;
    }
}

/* Print Styles */
@media print {
    .breadcrumb-nav {
        background: none;
        border-bottom: 1px solid #000;
        margin-bottom: 1rem;
    }
    
    .breadcrumb-item a {
        color: #000;
        text-decoration: underline;
    }
    
    .breadcrumb-item a:hover {
        background: none;
    }
}

/* Animation for breadcrumb items */
.breadcrumb-item {
    animation: fadeInUp 0.3s ease-out;
}

.breadcrumb-item:nth-child(1) {
    animation-delay: 0.1s;
}

.breadcrumb-item:nth-child(2) {
    animation-delay: 0.2s;
}

.breadcrumb-item:nth-child(3) {
    animation-delay: 0.3s;
}

.breadcrumb-item:nth-child(4) {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .breadcrumb-item {
        animation: none;
    }
}