.site-header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    gap: 16px;
}

.site-logo img {
    height: 32px;
    width: auto;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    background: none;
    border: none;
}

.nav-toggle__bar {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 20px 24px;
    box-shadow: var(--shadow-card);
}

.site-nav.is-open {
    display: block;
}

.site-nav__list {
    list-style: none;
    margin-bottom: 16px;
}

.site-nav__list li {
    border-bottom: 1px solid var(--color-border);
}

.site-nav__list a {
    display: block;
    padding: 12px 0;
    font-weight: 500;
    color: var(--color-text);
    min-height: 44px;
}

.site-nav__phone {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

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

    .site-nav {
        display: flex;
        position: static;
        align-items: center;
        gap: 24px;
        padding: 0;
        border: none;
        box-shadow: none;
    }

    .site-nav__list {
        display: flex;
        gap: 8px;
        margin: 0;
    }

    .site-nav__list li {
        border: none;
    }

    .site-nav__list a {
        padding: 8px 12px;
    }

    .site-nav__phone {
        font-size: 0.8125rem;
        white-space: nowrap;
    }
}

.site-footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding-top: 48px;
}

.site-footer a {
    color: var(--color-footer-text);
}

.site-footer a:hover {
    color: #fff;
    text-decoration: underline;
}

.site-footer__grid {
    display: grid;
    gap: 32px;
    padding-bottom: 32px;
}

@media (min-width: 768px) {
    .site-footer__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.site-footer__heading {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #fff;
}

.site-footer__links {
    list-style: none;
}

.site-footer__links li {
    margin-bottom: 10px;
}

.site-footer__links a {
    font-size: 0.9375rem;
}

.site-footer__address {
    font-size: 0.9375rem;
    line-height: 1.7;
}

.site-footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding: 20px 0;
}

.site-footer__bottom p {
    margin: 0;
    font-size: 0.875rem;
    color: rgba(232, 236, 241, 0.8);
}