/* Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.site-logo-img {
    height: 36px;
    width: auto;
}

.site-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

/* Desktop Nav */
.site-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-nav a {
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    text-decoration: none;
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--primary-blue);
}

.nav-cta {
    margin-left: var(--space-sm);
}

.nav-cta .btn-primary {
    color: #fff;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--gray-700);
}

.nav-toggle svg {
    width: 24px;
    height: 24px;
}

/* Mobile Nav */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: var(--space-md);
        border-bottom: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
        align-items: stretch;
    }

    .site-nav.open {
        display: flex;
    }

    .site-nav a {
        padding: 0.75rem var(--space-sm);
        font-size: 1rem;
    }

    .nav-cta {
        margin-left: 0;
        margin-top: var(--space-xs);
    }

    .nav-cta .btn {
        width: 100%;
    }
}