header {
    background: rgba(254, 254, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid rgba(24, 0, 173, 0.1);
}

.header-wrapper {
    padding: var(--spacing-md) 0;
    padding-left: 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
    padding-right: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    padding: 0;
}

.logo-img {
    height: 100px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(0, 71, 178, 0.15));
    transition: var(--transition);
    margin: 0;
}

.logo-text {
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition);
}

.logo:hover .logo-text {
    opacity: 0.8;
}

nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

nav a {
    color: var(--color-dark);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

nav a:hover {
    color: var(--color-primary);
    background: rgba(24, 0, 173, 0.05);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-primary);
}

@media (max-width: 768px) {
    nav {
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        gap: 0;
        box-shadow: var(--shadow-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .header-container {
        position: relative;
    }

    nav.active {
        max-height: 300px;
    }

    nav ul {
        flex-direction: column;
        gap: 0;
    }

    nav a {
        display: block;
        padding: var(--spacing-md);
        border-radius: 0;
        border-bottom: 1px solid var(--color-light);
    }

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

    .header-container {
        position: relative;
    }
}