/* =============================================
   HEADER STYLES
   ============================================= */

/* =============================================
   NAVBAR STYLES
   ============================================= */
.header {
    position: relative;
    z-index: 1000;
}

.navbar {
    background: linear-gradient(135deg, var(--white), var(--gray-100));
    box-shadow: var(--shadow-light);
    transition: var(--transition-slow);
    padding: 1rem 0;
}

.navbar.fixed-top {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-medium);
}

.navbar-brand {
    display: flex;
    align-items: center;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color) !important;
    text-decoration: none;
    transition: var(--transition);
}

.navbar-brand:hover {
    color: var(--primary-dark) !important;
    transform: scale(1.02);
}

.brand-icon {
    font-size: 2rem;
    margin-right: 0.75rem;
    background: linear-gradient(45deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-text {
    background: linear-gradient(45deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =============================================
   NAVIGATION LINKS
   ============================================= */
.navbar-nav {
    margin-left: auto;
}

.nav-item {
    margin: 0 0.5rem;
    position: relative;
}

.nav-link {
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark) !important;
    text-decoration: none;
    padding: 0.5rem 1rem !important;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color) !important;
    background-color: rgba(212, 175, 55, 0.1);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* =============================================
   DROPDOWN MENU
   ============================================= */
.dropdown-menu {
    background-color: var(--white);
    border: none;
    box-shadow: var(--shadow-medium);
    border-radius: var(--border-radius-lg);
    padding: 0.5rem;
    margin-top: 0.5rem;
    min-width: 250px;
    animation: dropdownFade 0.3s ease;
}

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

.dropdown-item {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text-dark);
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
}

.dropdown-item:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateX(5px);
}

.dropdown-item i {
    margin-right: 0.5rem;
    width: 16px;
    text-align: center;
}

.dropdown-divider {
    border-color: var(--gray-200);
    margin: 0.5rem 0;
}

/* =============================================
   TOGGLE BUTTON
   ============================================= */
.navbar-toggler {
    border: 2px solid var(--primary-color);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.navbar-toggler:hover {
    background-color: var(--primary-color);
    transform: scale(1.05);
}

.navbar-toggler:hover .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(212, 175, 55, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    transition: var(--transition);
}

/* =============================================
   MOBILE RESPONSIVE
   ============================================= */
@media (max-width: 991.98px) {
    .navbar {
        padding: 0.75rem 0;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .brand-icon {
        font-size: 1.5rem;
    }
    
    .navbar-collapse {
        background-color: var(--white);
        border-radius: var(--border-radius-lg);
        box-shadow: var(--shadow-medium);
        padding: 1rem;
        margin-top: 1rem;
        max-height: 80vh;
        overflow-y: auto;
    }
    
    .nav-item {
        margin: 0.25rem 0;
    }
    
    .nav-link {
        padding: 0.75rem 1rem !important;
        border-radius: var(--border-radius);
        margin: 0.25rem 0;
    }
    
    .nav-link:hover,
    .nav-link.active {
        background-color: var(--primary-color);
        color: var(--white) !important;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .dropdown-menu {
        background-color: var(--gray-100);
        box-shadow: none;
        border: 1px solid var(--gray-200);
        margin: 0.5rem 0;
    }
    
    .dropdown-item {
        padding: 0.75rem 1rem;
        border-radius: var(--border-radius);
    }
}

@media (max-width: 767.98px) {
    .navbar-brand {
        font-size: 1.1rem;
    }
    
    .brand-icon {
        font-size: 1.25rem;
        margin-right: 0.5rem;
    }
    
    .nav-link {
        font-size: 0.875rem;
        padding: 0.625rem 0.875rem !important;
    }
    
    .dropdown-item {
        font-size: 0.8rem;
        padding: 0.625rem 0.875rem;
    }
}

@media (max-width: 575.98px) {
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar-brand {
        font-size: 1rem;
    }
    
    .brand-icon {
        font-size: 1.1rem;
    }
    
    .brand-text {
        font-size: 0.9rem;
    }
    
    .navbar-collapse {
        padding: 0.75rem;
    }
    
    .nav-item {
        margin: 0.125rem 0;
    }
    
    .nav-link {
        font-size: 0.8rem;
        padding: 0.5rem 0.75rem !important;
    }
    
    .dropdown-item {
        font-size: 0.75rem;
        padding: 0.5rem 0.75rem;
    }
}

/* =============================================
   HEADER ANIMATIONS
   ============================================= */
@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.header-animate {
    animation: slideInDown 0.6s ease-out;
}

/* =============================================
   SCROLL EFFECTS
   ============================================= */
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-heavy);
    padding: 0.5rem 0;
}

.navbar.scrolled .navbar-brand {
    transform: scale(0.9);
}

.navbar.scrolled .nav-link {
    padding: 0.375rem 0.75rem !important;
}

/* =============================================
   ACCESSIBILITY
   ============================================= */
.nav-link:focus,
.navbar-toggler:focus,
.dropdown-item:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .navbar {
        background-color: var(--white);
        border-bottom: 2px solid var(--primary-color);
    }
    
    .nav-link {
        color: var(--black) !important;
        font-weight: 600;
    }
    
    .nav-link:hover,
    .nav-link.active {
        background-color: var(--primary-color);
        color: var(--white) !important;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .navbar,
    .navbar-brand,
    .nav-link,
    .dropdown-menu,
    .dropdown-item {
        transition: none;
    }
    
    .nav-link:hover,
    .nav-link.active {
        transform: none;
    }
}

/* =============================================
   UTILITY CLASSES
   ============================================= */
.navbar-transparent {
    background-color: transparent;
    box-shadow: none;
}

.navbar-dark {
    background-color: var(--bg-dark);
}

.navbar-dark .navbar-brand,
.navbar-dark .nav-link {
    color: var(--white) !important;
}

.navbar-dark .nav-link:hover,
.navbar-dark .nav-link.active {
    color: var(--primary-color) !important;
}

.navbar-dark .navbar-toggler {
    border-color: var(--primary-color);
}

.navbar-dark .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(212, 175, 55, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}