:root {
    --primary-color: #004AAD;
    --secondary-color: #2b87dc;
}

/* Navbar Base */
.main-navbar {
    position: fixed;
    background-color: #000000;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Navbar Container */
.nav-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 15px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

/* Scrolled State */
.main-navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.main-navbar.scrolled .nav-container {
    background: transparent;
    padding: 10px 50px;
}

.main-navbar.scrolled .nav-menu-wrapper {
    background: transparent;
    border-color: rgba(0, 0, 0, 0.1);
}

/* Logo */
.nav-logo {
    flex-shrink: 0;
}

.logo {
    height: 90px;
    width: auto;
    transition: all 0.3s ease;
    filter: brightness(0) invert(1);
}

.scrolled .logo {
    height: 70px;
    filter: none;
}

/* Navigation Menu */
.nav-menu-wrapper {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.nav-menu {
    display: flex;
    justify-content: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 20px;
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

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

.nav-link.highlight {
    color: var(--secondary-color);
    font-weight: 600;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-toggle i {
    transition: transform 0.3s ease;
}

.dropdown.show .dropdown-toggle i {
    transform: rotate(180deg);
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 20px;
    min-width: 700px;
    z-index: 1000;
}

.dropdown.show .dropdown-menu {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.dropdown-item {
    color: var(--primary-color);
    text-decoration: none;
    padding: 12px 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
    white-space: nowrap;
    background: rgba(0, 74, 173, 0.02);
}

.dropdown-item:hover {
    background: rgba(0, 74, 173, 0.1);
    color: var(--secondary-color);
    transform: translateX(5px);
}

/* Contact Section */
.nav-contact {
    display: flex;
    align-items: center;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-item i {
    font-size: 1.2rem;
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.scrolled .contact-item i {
    color: var(--primary-color);
    background: rgba(0, 74, 173, 0.1);
}

.contact-details {
    display: flex;
    flex-direction: column;
}

.contact-details .label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.8);
}

.scrolled .contact-details .label {
    color: #666;
}

.contact-details .value {
    font-size: 1rem;
    color: white;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

.scrolled .contact-details .value {
    color: var(--primary-color);
}

.contact-details .value:hover {
    color: var(--secondary-color);
}

/* CTA Button */
.nav-cta-button {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.nav-cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 74, 173, 0.2);
    color: white;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    padding: 10px;
    cursor: pointer;
}

.menu-icon {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    position: relative;
    transition: all 0.3s ease;
}

.scrolled .menu-icon {
    background: var(--primary-color);
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: white;
    transition: all 0.3s ease;
}

.scrolled .menu-icon::before,
.scrolled .menu-icon::after {
    background: var(--primary-color);
}

.menu-icon::before { top: -8px; }
.menu-icon::after { bottom: -8px; }

.mobile-menu-btn.active .menu-icon {
    background: transparent;
}

.mobile-menu-btn.active .menu-icon::before {
    transform: rotate(45deg);
    top: 0;
}

.mobile-menu-btn.active .menu-icon::after {
    transform: rotate(-45deg);
    bottom: 0;
}

@media (max-width: 991px) {
    .nav-menu-wrapper {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
    }

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

    .nav-menu {
        flex-direction: column;
        padding: 20px;
    }

    .nav-link {
        padding: 15px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        color: var(--primary-color);
    }

    .dropdown-menu {
        position: static;
        min-width: auto;
        transform: none;
        box-shadow: none;
        padding: 0 20px;
        margin-top: 10px;
    }

    .dropdown.show .dropdown-menu {
        animation: none;
    }

    .dropdown-grid {
        grid-template-columns: 1fr;
    }

    .mobile-menu-btn {
        display: block;
    }

    .logo {
        height: 70px;
    }

    .scrolled .logo {
        height: 60px;
    }
}

@media (max-width: 576px) {
    .nav-container {
        padding: 10px 20px;
    }

    .logo {
        height: 50px;
    }

    .scrolled .logo {
        height: 45px;
    }
}