/* ============================================
   HEADER
   ============================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    background-color: transparent;
    border-bottom: 1px solid transparent;
    transition:
        background-color var(--dur-base) var(--ease-out),
        border-color var(--dur-base) var(--ease-out),
        backdrop-filter var(--dur-base) var(--ease-out),
        box-shadow var(--dur-base) var(--ease-out);
    will-change: background-color;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    height: 96px;
    width: calc(100% - (var(--container-gutter) * 2));
    max-width: var(--container-max);
    margin-inline: auto;
    transition: height var(--dur-base) var(--ease-out);
}

/* Scrolled state */
.site-header.is-scrolled {
    background-color: rgba(245, 241, 232, 0.88);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom-color: var(--rule-light);
    box-shadow: 0 1px 0 rgba(23, 24, 23, 0.02);
}

.site-header.is-scrolled .site-header__inner {
    height: 76px;
}

/* Text color inversion when header sits over a dark hero */
.site-header--on-dark:not(.is-scrolled) .logo__name,
.site-header--on-dark:not(.is-scrolled) .site-nav__link,
.site-header--on-dark:not(.is-scrolled) .site-header__phone {
    color: var(--text-on-dark);
}

.site-header--on-dark:not(.is-scrolled) .logo__tag {
    color: var(--text-on-dark-3);
}

.site-header--on-dark:not(.is-scrolled) .site-nav__link:hover {
    color: var(--color-ivory);
}

.site-header--on-dark:not(.is-scrolled) .site-header__phone:hover {
    color: var(--color-brass);
}

/* ---------- LOGO ---------- */
.logo {
    display: flex;
    flex-direction: column;
    gap: 2px;
    line-height: 1;
    color: var(--text-primary);
    transition: color var(--dur-base) var(--ease-out);
    flex-shrink: 0;
}

.logo__name {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    line-height: 1;
}

.logo__tag {
    font-family: var(--font-sans);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    transition: color var(--dur-base) var(--ease-out);
}

.logo--on-dark .logo__name {
    color: var(--color-ivory);
}

.logo--on-dark .logo__tag {
    color: var(--text-on-dark-3);
}

.logo__icon {
    max-height: 45px;
    object-fit: contain;
    flex-shrink: 0;
}

/* ---------- NAV ---------- */
.site-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

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

.site-nav__link {
    position: relative;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 400;
    letter-spacing: 0.005em;
    color: var(--text-primary);
    padding-block: 6px;
    transition: color var(--dur-base) var(--ease-out);
}

.site-nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-brass);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform var(--dur-base) var(--ease-out);
}

.site-nav__link:hover {
    color: var(--color-brass);
}

.site-nav__link:hover::after {
    transform: scaleX(1);
}

/* ---------- HEADER ACTIONS ---------- */
.site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    flex-shrink: 0;
}

.site-header__phone {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
    transition: color var(--dur-base) var(--ease-out);
    white-space: nowrap;
}

.site-header__phone:hover {
    color: var(--color-ink);
}

.site-header__cta {
    padding: 0.75rem 1.125rem;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    background-color: var(--color-brass);
    border: 1px solid var(--color-brass);
}

/* ---------- MENU TOGGLE (mobile) ---------- */
.menu-toggle {
    display: none;
    position: relative;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    color: currentColor;
}

.menu-toggle__bar {
    display: block;
    width: 22px;
    height: 1.5px;
    background-color: currentColor;
    transition: transform var(--dur-base) var(--ease-out);
}

.site-header--on-dark:not(.is-scrolled) .menu-toggle {
    color: var(--color-ivory);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1180px) {
    .site-header__phone {
        display: none;
    }
}

@media (max-width: 960px) {

    .site-nav,
    .site-header__actions .btn {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .site-header__inner {
        height: 80px;
    }

    .site-header.is-scrolled .site-header__inner {
        height: 72px;
    }
}

/* Dynamic logo — dark (default, over hero) vs light (scrolled on ivory) */
.logo__icon--light {
    display: none;
}

.logo__icon--dark {
    display: block;
}

.site-header.is-scrolled .logo__icon--light {
    display: none;
}

.site-header.is-scrolled .logo__icon--dark {
    display: block;
}

/* When the header is NOT scrolled and sits over a dark hero, use the light logo */
.site-header--on-dark:not(.is-scrolled) .logo__icon--light {
    display: block;
}

.site-header--on-dark:not(.is-scrolled) .logo__icon--dark {
    display: none;
}

.site-nav__link.is-active {
    color: var(--color-brass);
}

.site-nav__link.is-active::after {
    transform: scaleX(1);
}

/* Inverted state over dark hero */
.site-header--on-dark:not(.is-scrolled) .site-nav__link.is-active {
    color: var(--color-brass);
}