/* ============================================
   Advanced Navigation System
   ============================================ */

.advanced-nav-container {
    padding: 0.5rem 0;
}

/* ── Logo ── */
.nav-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem 1rem 0.75rem;
    border-bottom: 1px solid rgba(158, 139, 99, 0.15);
    margin-bottom: 0.5rem;
}

.nav-logo a {
    display: block;
    text-decoration: none;
}

.nav-logo-img {
    width: 100%;
    max-width: 180px;
    height: auto;
    display: block;
    border-radius: 8px;
    background: #DDD8CB;
    padding: 0.25rem;
    mix-blend-mode: darken;
}

.modern-sidebar.collapsed .nav-logo-img {
    max-width: 48px;
}

.advanced-nav {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

/* ============================================
   Navigation Items
   ============================================ */

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    margin: 0 0.5rem;
    border-radius: 8px;
    color: #2A2A2A;
    text-decoration: none;
    transition: all 0.15s ease;
    font-weight: 500;
    font-size: 0.8125rem;
    position: relative;
}

.nav-item-icon {
    width: 20px;
    height: 20px;
    background: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: #9E8B63;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.nav-item-icon i {
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-item-text {
    flex: 1;
}

.nav-item:hover {
    background: rgba(42, 42, 42, 0.06);
}

.nav-item:hover .nav-item-icon {
    color: #2A2A2A;
}

.nav-item.active {
    background: #2A2A2A;
    color: #fff;
    font-weight: 600;
}

.nav-item.active .nav-item-icon {
    color: #fff;
}

/* ============================================
   Navigation Sections
   ============================================ */

.nav-section {
    margin: 0.25rem 0;
}

.nav-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.875rem;
    margin: 0 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
    background: transparent;
}

.nav-section-header:hover {
    background: rgba(42, 42, 42, 0.06);
}

.nav-section-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-section-icon {
    width: 20px;
    height: 20px;
    background: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: #9E8B63;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.nav-section-icon i {
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-section-header:hover .nav-section-icon {
    color: #2A2A2A;
}

.nav-section-title {
    font-weight: 600;
    font-size: 0.8125rem;
    color: #2A2A2A;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.nav-section-arrow {
    font-size: 0.75rem;
    color: rgba(42, 42, 42, 0.4);
    transition: all 0.2s ease;
}

.nav-section-header:hover .nav-section-arrow {
    color: #9E8B63;
}

/* ============================================
   Section Content (Submenu)
   ============================================ */

.nav-section-content {
    margin-top: 0.125rem;
    padding-left: 0.375rem;
    animation: slideDown 0.2s ease;
}

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

.nav-section-content .nav-item {
    padding: 0.4rem 0.875rem;
    margin: 0.0625rem 0.5rem;
    font-size: 0.8rem;
}

.nav-section-content .nav-item-icon {
    width: 18px;
    height: 18px;
    font-size: 0.875rem;
}

.nav-section-content .nav-item::before {
    display: none;
}

.nav-section-content .nav-item.active {
    background: #2A2A2A;
    color: #fff;
}

.nav-section-content .nav-item.active .nav-item-icon {
    color: #fff;
}

/* ============================================
   Collapsed Sidebar Support
   ============================================ */

.modern-sidebar.collapsed .nav-item-text,
.modern-sidebar.collapsed .nav-section-title {
    display: none;
}

.modern-sidebar.collapsed .nav-item,
.modern-sidebar.collapsed .nav-section-header {
    justify-content: center;
    padding: 0.75rem;
}

.modern-sidebar.collapsed .nav-section-content {
    display: none;
}

.modern-sidebar.collapsed .nav-section-arrow {
    display: none;
}

/* ============================================
   Hover Effects & Micro-interactions
   ============================================ */

.nav-item,
.nav-section-header {
    position: relative;
    overflow: hidden;
}

.nav-item::after,
.nav-section-header::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(158, 139, 99, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.nav-item:active::after,
.nav-section-header:active::after {
    width: 300px;
    height: 300px;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .nav-item,
    .nav-section-header {
        padding: 0.65rem 0.875rem;
    }
    
    .nav-item-icon,
    .nav-section-icon {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
}