:root {
    --primary-color: #2563eb;
    --text-color: #64748b;
    --background-color: #ffffff;
    --hover-color: #f8fafc;
    --border-color: #e2e8f0;
    --shadow-color: rgba(0, 0, 0, 0.04);
    --header-height: 600px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--background-color);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.75rem max(2rem, calc((100% - 1200px) / 2));
    background-color: var(--background-color);
    box-shadow: 0 1px 2px var(--shadow-color);
    position: fixed;
    width: 100%;
    height: auto;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.nav-brand .logo {
    color: var(--primary-color);
    font-size: 1.75rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.05rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 0;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.2s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Updated Dropdown styles */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 1rem);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--background-color);
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px var(--shadow-color), 
                0 4px 6px -2px var(--shadow-color);
    padding: 0.75rem;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
    list-style: none;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-link {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s ease;
    border-radius: 0.75rem;
    font-size: 0.95rem;
}

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

/* Updated hamburger styles */
.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--text-color);
    margin: 6px 0;
    transition: all 0.3s ease;
    border-radius: 1px;
}

/* Updated Responsive Design */
@media (max-width: 968px) {
    .navbar {
        padding: 1rem 2rem;
    }

    .hamburger {
        display: block;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 62px;
        flex-direction: column;
        background-color: var(--background-color);
        width: 100%;
        height: calc(100vh - 4.5rem);
        padding: 2rem;
        gap: 1.5rem;
        transition: 0.3s;
        box-shadow: 0 4px 6px -1px var(--shadow-color);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        background-color: rgba(255, 255, 255, 0.98);
    }

    .nav-menu.active {
        margin-top: -7px;
        left: 0;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        justify-content: flex-start;
        width: 100%;
    }

    .dropdown-menu {
        display: none;
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none !important;
        left: 0;
        box-shadow: none;
        padding: 0.5rem 0 0.5rem 1.5rem;
        margin-top: 0.5rem;
        border: none;
        border-left: 2px solid var(--border-color);
        min-width: auto;
        width: 100%;
    }

    .dropdown.active .dropdown-menu {
        display: block;
        transform: none !important;
    }

    .dropdown-link {
        padding: 0.75rem 0;
        transform: none !important;
        background: none !important;
        border-radius: 0;
        width: 100%;
        display: block;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    .dropdown-menu {
        border: none;
    }

    .nav-brand .logo {
        font-size: 1.5rem;
    }
    
    .nav-link {
        font-size: 0.95rem;
        padding: 0.5rem 0;
    }
}