/* ================================================================
   Header & Navigation
   ================================================================ */

/* ── CSS Variable for header height ─────────────────────── */
:root {
    --header-h:     72px;
    --top-bar-h:    40px;
    --header-full:  72px; /* updated by JS if top bar present */
}

/* ── Top Bar ─────────────────────────────────────────────── */
.top-bar {
    background: var(--color-dark);
    color: rgba(255,255,255,.75);
    font-size: 0.8125rem;
    height: var(--top-bar-h);
    display: none; /* shown only when ACF fields are filled */
}

.top-bar:not(:empty) {
    display: block;
}

.top-bar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.top-bar__contact {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.top-bar__item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255,255,255,.75);
    transition: color var(--transition);
    font-size: 0.8125rem;
}

.top-bar__item:hover {
    color: #fff;
}

.top-bar__tagline {
    font-size: 0.775rem;
    color: rgba(255,255,255,.5);
    display: none;
}

@media (min-width: 1024px) {
    .top-bar__tagline {
        display: block;
    }
}

/* ── Main Header ─────────────────────────────────────────── */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-h);
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    z-index: var(--z-header);
    transition: box-shadow var(--transition), background var(--transition), height var(--transition);
}

/* Push page content below fixed header */
body {
    padding-top: var(--header-h);
}

/* Scrolled state — shadow replaces border */
.site-header.is-scrolled {
    border-bottom-color: transparent;
    box-shadow: 0 2px 32px rgba(15,23,42,.10);
    height: 64px;
}

/* ── Inner layout ────────────────────────────────────────── */
.site-header__inner {
    display: flex;
    align-items: center;
    height: 100%;
    gap: var(--space-8);
}

/* ── Logo ────────────────────────────────────────────────── */
.site-header__logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    text-decoration: none;
    outline-offset: 4px;
}

.site-header__logo-img {
    height: 42px;
    width: auto;
    display: block;
    transition: opacity var(--transition);
}

.site-header__logo-img:hover {
    opacity: .85;
}

.site-header__logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-dark);
    letter-spacing: -0.02em;
    white-space: nowrap;
}

/* Theme-fallback brand: Y mark + wordmark */
.site-header__logo {
    gap: var(--space-2);
}

.site-header__logo-mark {
    height: 46px;
    width: auto;
    display: block;
}

.site-header__brand {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.site-header__brand-name {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-dark);
    letter-spacing: 0.04em;
}

.site-header__brand-tag {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

@media (max-width: 479px) {
    .site-header__brand-tag { display: none; }
    .site-header__logo-mark { height: 38px; }
    .site-header__brand-name { font-size: 1.15rem; }
}

/* ── Desktop Navigation ──────────────────────────────────── */
.site-header__nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Nav list */
.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list > .menu-item > a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: var(--space-2) var(--space-4);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: color var(--transition), background var(--transition);
    position: relative;
    text-decoration: none;
    white-space: nowrap;
}

/* Hover & active underline effect */
.nav-list > .menu-item > a span {
    position: relative;
}

.nav-list > .menu-item > a span::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: width var(--transition);
}

.nav-list > .menu-item > a:hover {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.nav-list > .menu-item > a:hover span::after {
    width: 100%;
}

/* Active page */
.nav-list > .current-menu-item > a,
.nav-list > .current-menu-parent > a,
.nav-list > .current-menu-ancestor > a {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.nav-list > .current-menu-item > a span::after,
.nav-list > .current-menu-parent > a span::after {
    width: 100%;
}

/* ── Dropdown (sub-menu) ─────────────────────────────────── */
.menu-item-has-children {
    position: relative;
}

.menu-item-has-children > a::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    margin-left: 4px;
    transition: transform var(--transition);
    flex-shrink: 0;
}

.menu-item-has-children:hover > a::before {
    transform: rotate(-135deg) translateY(-2px);
}

.sub-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-50%) translateY(8px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    z-index: var(--z-dropdown);
}

.menu-item-has-children:hover .sub-menu,
.menu-item-has-children:focus-within .sub-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.sub-menu .menu-item a {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: background var(--transition), color var(--transition);
    text-decoration: none;
}

.sub-menu .menu-item a:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* ── Header Actions (right side) ─────────────────────────── */
.site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
    margin-left: auto;
}

/* CTA button */
.site-header__cta {
    display: none; /* shown on desktop */
}

@media (min-width: 768px) {
    .site-header__cta {
        display: inline-flex;
    }
}

/* ── Hamburger Button ────────────────────────────────────── */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 4px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
    flex-shrink: 0;
}

.hamburger:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

.hamburger__line {
    display: block;
    height: 2px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: transform .3s ease, opacity .3s ease, width .3s ease;
    transform-origin: center;
}

.hamburger__line--1 { width: 20px; }
.hamburger__line--2 { width: 14px; }
.hamburger__line--3 { width: 17px; }

/* Active state — lines become X */
.hamburger.is-active .hamburger__line--1 {
    width: 20px;
    transform: translateY(7px) rotate(45deg);
}

.hamburger.is-active .hamburger__line--2 {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.is-active .hamburger__line--3 {
    width: 20px;
    transform: translateY(-7px) rotate(-45deg);
}

/* Hide hamburger on desktop */
@media (min-width: 1024px) {
    .hamburger {
        display: none;
    }
}

/* ── Mobile Navigation Panel ─────────────────────────────── */
@media (max-width: 1023px) {
    .site-header__nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        width: 100%;
        height: calc(100svh - var(--header-h));
        background: var(--color-bg-white);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--space-8) var(--space-6);
        transform: translateX(-100%);
        transition: transform .35s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
        gap: 0;
        z-index: calc(var(--z-header) - 1);
        border-right: 1px solid var(--color-border);
        max-width: 340px;
    }

    .site-header__nav.is-open {
        transform: translateX(0);
    }

    /* Mobile nav list */
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-1);
        width: 100%;
    }

    .nav-list > .menu-item > a {
        padding: var(--space-4) var(--space-4);
        font-size: 1rem;
        font-weight: 600;
        border-radius: var(--radius-lg);
        justify-content: space-between;
    }

    .nav-list > .menu-item > a span::after {
        display: none;
    }

    /* Mobile sub-menu */
    .sub-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        box-shadow: none;
        border: none;
        border-radius: 0;
        background: var(--color-bg);
        padding: var(--space-2) 0 var(--space-2) var(--space-4);
        margin-top: var(--space-1);
    }

    /* Mobile CTA at bottom */
    .site-header__nav::after {
        content: '';
        display: block;
        margin-top: auto;
    }
}

/* ── Dark overlay behind mobile menu ─────────────────────── */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,.45);
    backdrop-filter: blur(2px);
    z-index: calc(var(--z-header) - 2);
    opacity: 0;
    transition: opacity .35s ease;
}

.nav-overlay.is-visible {
    display: block;
    opacity: 1;
}

/* Prevent body scroll when menu open */
body.menu-is-open {
    overflow: hidden;
}