/**
 * Modern Sidebar Navigation Styles
 * Enhanced visual hierarchy and modern iconography
 */

/* ============================================================
   SIDEBAR ENHANCEMENTS
   ============================================================ */

/* Sidebar scroll indicator */
.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-primary-hover) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 10;
}

.sidebar.scrolled::before {
    opacity: 0.3;
}

/* Enhanced section dividers */
.sidebar-section-divider {
    margin: 1.5rem 1.25rem;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--border-strong) 50%, transparent 100%);
    opacity: 0.3;
}

/* Collapsible section animations */
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.sidebar-nav-item {
    animation: fadeInScale 0.3s ease-out;
}

/* Icon color variations for different sections */
.sidebar-section:nth-child(1) .sidebar-nav-link i {
    color: var(--accent-primary); /* Dashboard - Green */
}

.sidebar-section:nth-child(2) .sidebar-nav-link i {
    color: var(--info); /* Campaign Management - Blue */
}

.sidebar-section:nth-child(3) .sidebar-nav-link i {
    color: var(--warning); /* Inventory - Orange */
}

.sidebar-section:nth-child(4) .sidebar-nav-link i {
    color: #8B5CF6; /* Partnerships - Purple */
}

.sidebar-section:nth-child(5) .sidebar-nav-link i {
    color: #6B7280; /* System - Gray */
}

/* Active state maintains accent color */
.sidebar-nav-link.active i {
    color: var(--accent-primary) !important;
}

/* Hover effects restore section colors */
.sidebar-nav-link:not(.active):hover i {
    filter: brightness(1.2);
}

/* Badge variations */
.sidebar-nav-badge.new {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-dark) 100%);
}

.sidebar-nav-badge.alert {
    background: var(--danger);
    animation: pulse 2s infinite;
}

.sidebar-nav-badge.info {
    background: var(--info);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(0.95);
    }
}

/* Tooltip for truncated text */
.sidebar-nav-link span {
    position: relative;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Icon loading state */
.sidebar-nav-link.loading i {
    animation: rotate 1s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Submenu connector line enhancement */
.sidebar-submenu {
    position: relative;
}

.sidebar-submenu::before {
    content: '';
    position: absolute;
    left: 1.25rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--border-default) 0%, transparent 100%);
}

/* Enhanced submenu item hover */
.sidebar-submenu-item:first-child .sidebar-submenu-link {
    margin-top: 0.25rem;
}

.sidebar-submenu-item:last-child .sidebar-submenu-link {
    margin-bottom: 0.25rem;
}

/* Navigation item count badge */
.nav-item-count {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 600;
    padding: 0.125rem 0.5rem;
    background: var(--bg-surface);
    border-radius: 8px;
    transition: all 0.25s ease;
}

.sidebar-nav-link:hover .nav-item-count {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Quick action buttons in sidebar */
.sidebar-quick-actions {
    padding: 1rem 1.25rem;
    margin: 0 0.75rem 1rem 0.75rem;
    background: rgba(16, 185, 129, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(16, 185, 129, 0.1);
}

.quick-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
}

.quick-action-btn:hover {
    background: var(--accent-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* Keyboard navigation focus states */
.sidebar-nav-link:focus,
.sidebar-submenu-link:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

/* Compact mode toggle */
.sidebar.compact {
    width: 72px;
}

.sidebar.compact .sidebar-section-title,
.sidebar.compact .sidebar-nav-link span,
.sidebar.compact .sidebar-tenant-switcher > div > div:nth-child(2),
.sidebar.compact .submenu-toggle {
    display: none;
}

.sidebar.compact .sidebar-nav-link {
    justify-content: center;
    padding: 0.75rem;
}

.sidebar.compact .sidebar-nav-link i {
    width: auto;
    font-size: 1.25rem;
}

/* Mobile responsive enhancements */
@media (max-width: 1024px) {
    .sidebar-section-title::before {
        width: 2px;
        height: 10px;
    }

    .sidebar-nav-link {
        padding: 0.625rem 1rem;
        gap: 0.75rem;
    }

    .sidebar-section {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    .sidebar-nav-link,
    .sidebar-submenu-link,
    .sidebar-nav-badge,
    .submenu-toggle {
        transition: none;
    }

    .sidebar-nav-item,
    .sidebar-submenu.show {
        animation: none;
    }
}

/* Dark mode adjustments (if needed) */
@media (prefers-color-scheme: dark) {
    .sidebar {
        box-shadow: 4px 0 16px rgba(0, 0, 0, 0.3);
    }
}

/* Print styles */
@media print {
    .sidebar {
        display: none;
    }
}