/* ================================
   NAVIGATION - PROFESSIONAL ENTERPRISE
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--neutral-200);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar>.container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* Brand */
.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.navbar-brand img {
    height: 42px;
    width: auto;
}

.navbar-brand span {
    font-family: var(--font-primary);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--neutral-900);
}

/* Nav Menu */
.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--neutral-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-600);
    background: var(--primary-50);
}

.nav-link.active {
    color: var(--primary-600);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--white);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: 0.9375rem;
    color: var(--neutral-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--primary-50);
    color: var(--primary-600);
}

/* Mobile Toggle */
.navbar-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    cursor: pointer;
}

.navbar-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--neutral-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

/* Mobile Styles */
@media (max-width: 1024px) {
    .navbar-toggle {
        display: flex;
    }

    .navbar-nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--white);
        padding: var(--space-4);
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }

    .navbar-nav.active {
        transform: translateX(0);
    }

    .nav-link {
        padding: var(--space-4);
        font-size: 1rem;
    }

    .nav-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding-left: var(--space-6);
    }

    .navbar-nav .btn {
        margin-top: var(--space-4);
        width: 100%;
    }
}