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

.site-header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background-color: var(--color-white);
    border-bottom: 1px solid transparent;
    transition: background-color var(--transition-normal),
                border-color var(--transition-normal),
                box-shadow var(--transition-normal),
                padding var(--transition-normal);
}

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

.header-inner {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    height: var(--header-height);
    padding-top: 0;
    padding-bottom: 0;
}

/* ── Logo ─────────────────────────────────────────────────────────────────── */
.site-header__logo {
    flex-shrink: 0;
    margin-right: auto;
}

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

.site-header__logo img {
    height: 48px;
    width: auto;
    transition: height var(--transition-normal);
}

.site-header--scrolled .site-header__logo img {
    height: 40px;
}

.site-header__logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text-main {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    line-height: 1;
}

/* ── Primary Navigation ───────────────────────────────────────────────────── */
.site-nav {
    display: none;
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu li a {
    display: block;
    padding: 0.5rem 0.875rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary);
    border-radius: var(--border-radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
    white-space: nowrap;
}

.nav-menu li a:hover,
.nav-menu li.current-menu-item > a,
.nav-menu li.current-page-ancestor > a {
    color: var(--color-accent);
    background-color: rgba(200,149,108,0.08);
}

/* ── Header Actions ───────────────────────────────────────────────────────── */
.site-header__actions {
    display: none;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

@media (min-width: 1024px) {
    .site-header__actions {
        display: flex;
    }
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.header-phone:hover {
    color: var(--color-accent);
}

.header-phone__icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.header-phone__icon svg {
    width: 100%;
    height: 100%;
}

/* ── Hamburger Button ─────────────────────────────────────────────────────── */
.hamburger-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    margin-left: auto;
}

@media (min-width: 1024px) {
    .hamburger-btn {
        display: none;
    }
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    transform-origin: center;
}

/* Animated X state */
.menu-open .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.menu-open .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.menu-open .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Nav ───────────────────────────────────────────────────────────── */
@media (max-width: 1023px) {
    .site-nav {
        display: block;
        position: fixed;
        top: 0;
        right: -320px;
        width: 300px;
        height: 100vh;
        background-color: var(--color-white);
        z-index: calc(var(--z-sticky) + 10);
        padding: calc(var(--header-height) + var(--space-md)) var(--space-md) var(--space-md);
        overflow-y: auto;
        transition: right var(--transition-normal);
        box-shadow: -4px 0 30px rgba(0,0,0,0.15);
    }

    .menu-open .site-nav {
        right: 0;
    }

    .nav-menu {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu li a {
        padding: 0.875rem var(--space-sm);
        font-size: 1rem;
        border-bottom: 1px solid var(--color-light-gray);
        border-radius: 0;
    }

    .nav-menu li:last-child a {
        border-bottom: none;
    }

    /* Mobile actions inside nav */
    .site-nav::after {
        content: '';
        display: block;
        height: var(--space-md);
    }
}

/* ── Overlay ──────────────────────────────────────────────────────────────── */
.mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0,0,0,0.5);
    z-index: calc(var(--z-sticky) + 5);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.menu-open .mobile-overlay {
    display: block;
    opacity: 1;
}

.menu-open body {
    overflow: hidden;
}

/* ── Transparent header variant (homepage hero) ───────────────────────────── */
.site-header--transparent {
    background-color: transparent;
    border-bottom-color: transparent;
}

.site-header--transparent .nav-menu li a,
.site-header--transparent .header-phone,
.site-header--transparent .logo-text-main {
    color: var(--color-white);
}

.site-header--transparent .hamburger-line {
    background-color: var(--color-white);
}

.site-header--transparent .nav-menu li a:hover,
.site-header--transparent .nav-menu li.current-menu-item > a {
    color: var(--color-accent-light);
    background-color: rgba(255,255,255,0.1);
}

.site-header--transparent.site-header--scrolled {
    background-color: var(--color-white);
}

.site-header--transparent.site-header--scrolled .nav-menu li a,
.site-header--transparent.site-header--scrolled .header-phone,
.site-header--transparent.site-header--scrolled .logo-text-main {
    color: var(--color-primary);
}

.site-header--transparent.site-header--scrolled .hamburger-line {
    background-color: var(--color-primary);
}