:root {
    --primary: #0066CC;
    --primary-dark: #0052A3;
    --accent: #F59E0B;
    --accent-light: #FCD34D;
    --neutral-light: #F3F4F6;
    --neutral: #6B7280;
    --dark: #1F2937;
    --white: #FFFFFF;
}

/* Header & Navigation Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 9999;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.header.promo-visible {
    top: 44px;
}

@media (max-width: 992px) {
    .header.promo-visible {
        top: 48px;
    }
}

@media (max-width: 768px) {
    .header.promo-visible {
        top: 52px;
    }
}

.header-content {
    width: 100%;
    padding: 1rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    align-items: center;
    background: rgba(255, 255, 255, 0.6);
    padding: 0.5rem;
    border-radius: 16px;
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 24px rgba(0, 102, 204, 0.12), 
                inset 0 1px 2px rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    display: block;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
    border-radius: 12px;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px 3px 0 0;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu a:hover {
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.25);
}

.nav-menu a:hover::before {
    opacity: 1;
}

.nav-menu a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-menu a.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 16px rgba(0, 102, 204, 0.3);
}

.nav-menu a.active::after {
    transform: translateX(-50%) scaleX(1);
    background: var(--accent);
}

/* Dropdown Menu Styles */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 250px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    padding: 1rem 0;
    border: 1px solid rgba(255, 255, 255, 0.8);
    list-style: none;
    display: block;
}

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

.dropdown-menu li {
    width: 100%;
    margin: 0;
    padding: 0;
}

.dropdown-menu a {
    padding: 0.75rem 2rem !important;
    border-radius: 0 !important;
    font-size: 0.9rem !important;
    color: var(--dark) !important;
    background: transparent !important;
    display: block !important;
    width: 100% !important;
    position: relative !important;
    transition: all 0.3s ease !important;
    text-align: left;
}

.dropdown-menu a::before,
.dropdown-menu a::after {
    display: none !important;
}

.dropdown-menu a:hover {
    background: rgba(0, 102, 204, 0.05) !important;
    color: var(--primary) !important;
    transform: translateX(5px) !important;
    box-shadow: none !important;
}

.nav-menu li.has-dropdown > a::after {
    content: '▾';
    margin-left: 0.5rem;
    display: inline-block;
    transition: transform 0.3s ease;
}

.nav-menu li.has-dropdown:hover > a::after {
    transform: rotate(180deg);
}

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    transition: all 0.3s ease;
}

/* Button Styles */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
    display: inline-block;
    text-align: center;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

/* Promo Bar */
#promoBar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--accent), #EF4444);
    color: white;
    padding: 0.75rem;
    text-align: center;
    font-weight: 600;
    z-index: 10001;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    font-size: 0.9rem;
    display: none;
}

#promoBar.visible {
    display: block;
}

/* Mobile Responsiveness for Header */
@media (max-width: 992px) {
    .header-content {
        padding: 1rem 2rem;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        border-radius: 0 0 16px 16px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li.has-dropdown > a::after {
        float: right;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: transparent;
        padding: 0 0 0 1.5rem;
        display: none;
        min-width: unset;
        border: none;
    }
    
    .nav-menu li:hover > .dropdown-menu,
    .nav-menu li.active-mobile > .dropdown-menu {
        display: block;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-actions {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-content {
        padding: 0.75rem 1rem;
    }
    
    .logo img {
        height: 32px !important;
    }
}