/* ==========================================================================
   LINA ARCHITECTURE - NAVBAR CSS
   Navigation Bar Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   NAVBAR CONTAINER
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height-mobile);
    background-color: var(--color-primary);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.nav.scrolled {
    background-color: rgba(28, 43, 58, 0.98);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* --------------------------------------------------------------------------
   LOGO
   -------------------------------------------------------------------------- */
.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    letter-spacing: 0.02em;
    transition: opacity var(--transition-base);
}

.nav-logo:hover {
    opacity: 0.9;
    color: var(--color-white);
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.nav-logo-name {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
}

.nav-logo-tagline {
    font-size: var(--text-xs);
    font-family: var(--font-body);
    font-weight: var(--font-normal);
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* --------------------------------------------------------------------------
   NAV RIGHT GROUP (Links + CTA wrapper)
   -------------------------------------------------------------------------- */
.nav-right {
    display: none;
    align-items: center;
    gap: var(--space-6);
}

/* --------------------------------------------------------------------------
   NAVIGATION LINKS (DESKTOP)
   -------------------------------------------------------------------------- */
.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: color var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-secondary);
}

.nav-link i {
    font-size: var(--text-xs);
    transition: transform var(--transition-base);
}

.nav-item:hover .nav-link i {
    transform: rotate(180deg);
}

/* --------------------------------------------------------------------------
   DROPDOWN MENU
   -------------------------------------------------------------------------- */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
    padding: var(--space-2) 0;
    z-index: var(--z-dropdown);
}

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

.nav-dropdown-link {
    display: block;
    padding: var(--space-3) var(--space-5);
    color: var(--color-primary);
    font-size: var(--text-sm);
    transition: all var(--transition-base);
}

.nav-dropdown-link:hover {
    background-color: var(--color-accent);
    color: var(--color-secondary);
    padding-left: var(--space-6);
}

/* --------------------------------------------------------------------------
   CTA BUTTON
   -------------------------------------------------------------------------- */
.nav-cta {
    display: block;
    flex-shrink: 0;
}

.nav-cta .btn {
    white-space: nowrap;
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   MOBILE MENU TOGGLE
   -------------------------------------------------------------------------- */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: calc(var(--z-fixed) + 1);
}

.nav-toggle-bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.nav-toggle-bar:nth-child(1) {
    margin-bottom: 6px;
}

.nav-toggle-bar:nth-child(2) {
    margin-bottom: 6px;
}

/* Active State (X icon) */
.nav-toggle.active .nav-toggle-bar:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .nav-toggle-bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* --------------------------------------------------------------------------
   MOBILE MENU (positioned outside .nav for z-index isolation)
   -------------------------------------------------------------------------- */
.nav-mobile {
    position: fixed;
    top: var(--navbar-height-mobile);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-primary);
    padding: var(--space-6);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    overflow-y: auto;
    z-index: 9999;
}

.nav-mobile.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-mobile-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.nav-mobile-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.nav-mobile-link {
    flex: 1;
    display: flex;
    align-items: center;
    padding: var(--space-4) 0;
    color: var(--color-white);
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
}

.nav-mobile-link:hover {
    color: var(--color-secondary);
}

/* Dropdown toggle button (chevron) */
.nav-mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    transition: color var(--transition-base);
    flex-shrink: 0;
}

.nav-mobile-toggle:hover {
    color: var(--color-secondary);
}

.nav-mobile-toggle i {
    font-size: var(--text-base);
    transition: transform var(--transition-base);
}

.nav-mobile-item.expanded .nav-mobile-toggle i {
    transform: rotate(180deg);
}

/* Mobile Dropdown */
.nav-mobile-dropdown {
    display: none;
    width: 100%;
    padding: var(--space-2) 0 var(--space-4);
}

.nav-mobile-item.expanded .nav-mobile-dropdown {
    display: block;
}

.nav-mobile-dropdown-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-base);
    transition: all var(--transition-base);
}

.nav-mobile-dropdown-link:hover {
    color: var(--color-secondary);
    padding-left: var(--space-6);
}

/* Mobile CTA */
.nav-mobile-cta {
    margin-top: var(--space-8);
}

.nav-mobile-cta .btn {
    width: 100%;
    justify-content: center;
}

/* --------------------------------------------------------------------------
   RESPONSIVE STYLES
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
    .nav {
        height: var(--navbar-height);
    }
    
    .nav-mobile {
        top: var(--navbar-height);
    }
    
    .nav-logo img {
        height: 45px;
    }
    
    .nav-logo-name {
        font-size: var(--text-xl);
    }
}

@media (min-width: 1200px) {
    .nav-toggle {
        display: none;
    }
    
    .nav-right {
        display: flex;
    }
    
    .nav-mobile {
        display: none !important;
    }
    
    .nav-container {
        padding: 0 var(--space-12);
    }
}

/* Extra large screens - more breathing room */
@media (min-width: 1400px) {
    .nav-container {
        padding: 0 var(--space-16);
    }
    
    .nav-links {
        gap: var(--space-3);
    }
    
    .nav-right {
        gap: var(--space-8);
    }
}