/* Header Styles */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(248, 250, 252, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e2e8f0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #3b82f6;
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: #2563eb;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #3b82f6;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background: #3b82f6;
}

.nav-buttons {
    display: flex;
    gap: 0.5rem;
}