/* ==========================================================================
   Header Styles — SEO Pages
   ==========================================================================
   Sticky header with logo, centered nav, CTA button, and mobile hamburger.
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-elevated);
    background-color: var(--color-surface);
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration-normal) var(--ease-smooth),
                box-shadow var(--duration-normal) var(--ease-smooth);
}

/* Anchor scroll offset so #section jumps land below the sticky header
   instead of underneath it. Applies to all SEO-page sections that opt in
   via the [id] attribute (every w1-* section root has an id). */
.w1-page section[id],
.w1-page > section {
    scroll-margin-top: var(--header-height, 88px);
}

.site-header--scrolled {
    border-bottom-color: var(--color-light-gray);
    box-shadow: var(--shadow-sm);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-md) var(--space-xl);
    gap: var(--space-lg);
}

/* ── Logo ── */

.site-header__logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

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

.site-header__logo:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* ── Navigation ── */

.site-header__nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-list a {
    font-family: var(--font-body);
    font-size: var(--text-small);
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--duration-fast) var(--ease-smooth);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--duration-normal) var(--ease-spring);
}

.nav-list a:hover,
.nav-list .current-menu-item a,
.nav-list .current_page_item a {
    color: var(--color-text);
}

.nav-list a:hover::after,
.nav-list .current-menu-item a::after,
.nav-list .current_page_item a::after {
    width: 100%;
}

/* ── CTA Button ── */

.site-header__cta {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    background-color: var(--color-accent);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: var(--text-small);
    font-weight: 600;
    border-radius: var(--radius-pill);
    text-decoration: none;
    transition: background-color var(--duration-fast) var(--ease-smooth),
                transform var(--duration-fast) var(--ease-spring);
}

.site-header__cta:hover {
    background-color: var(--color-brand-dark);
    color: var(--color-white);
    transform: translateY(-1px);
}

.site-header__cta:active {
    transform: translateY(0);
}

.site-header__cta:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ── Hamburger ── */

.site-header__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 5px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    z-index: calc(var(--z-elevated) + 1);
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 1px;
    transition: transform var(--duration-normal) var(--ease-spring),
                opacity var(--duration-fast) var(--ease-smooth);
}

.site-header__hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.site-header__hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.site-header__hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile ── */

@media (max-width: 768px) {
    .site-header {
        /* Always-on chrome backdrop on small viewports so the floating
           header reads as a layer over body content, not transparent. */
        background-color: var(--color-surface);
        box-shadow: var(--shadow-sm);
    }

    .site-header__inner {
        padding: var(--space-md);
    }

    .site-header__hamburger {
        display: flex;
    }

    .site-header__cta {
        display: none;
    }

    .site-header__nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-surface);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--duration-normal) var(--ease-smooth),
                    visibility var(--duration-normal) var(--ease-smooth);
        z-index: var(--z-elevated);
    }

    .site-header__nav.is-open {
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: var(--space-2xl);
    }

    .nav-list a {
        font-size: var(--text-h3);
        text-transform: none;
        letter-spacing: var(--tracking-normal);
    }

    /* Show CTA in mobile menu */
    .site-header__nav .nav-list::after {
        content: 'Chat With Us';
        display: inline-block;
        margin-top: var(--space-lg);
        padding: var(--space-sm) var(--space-2xl);
        background-color: var(--color-accent);
        color: var(--color-white);
        font-size: var(--text-body);
        font-weight: 600;
        border-radius: var(--radius-pill);
    }
}