/* =========================================================
   4. HEADER
   ========================================================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    color: var(--color-white);
    background: var(--color-red);
    overflow: visible;
}

.site-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: var(--color-pink);
    -webkit-mask-image: url("../img/artspot-pattern-head.svg");
    mask-image: url("../img/artspot-pattern-head.svg");
    -webkit-mask-repeat: repeat-x;
    mask-repeat: repeat-x;
    -webkit-mask-position: center;
    mask-position: center;
    -webkit-mask-size: auto 100%;
    mask-size: auto 100%;
    opacity: 0.65;
    pointer-events: none;
}

.site-header__inner {
    position: relative;
    z-index: 1;
    height: var(--header-height);
    display: flex;
    align-items: center;
    gap: 32px;
}

.site-brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    color: var(--color-white);
    text-decoration: none;
}

.site-brand__logo {
    display: block;
    height: 28px;
    width: auto;
    max-width: none;
}

.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
    margin-left: 48px;
}

.main-menu {
    display: flex;
    align-items: center;
    gap: clamp(30px, 3vw, 56px);
    margin: 0;
    padding: 0;
    list-style: none;
}

.main-menu li {
    margin: 0;
}

.main-menu a {
    position: relative;
    display: block;
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.035em;
    text-transform: uppercase;
}

.main-menu a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1.5px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-fast);
}

.main-menu a:hover::after,
.main-menu .current-menu-item > a::after,
.main-menu .current_page_item > a::after {
    transform: scaleX(1);
}

.search-toggle {
    position: relative;
    flex: 0 0 auto;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-white);
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.search-toggle:hover {
    opacity: 0.65;
}

.search-toggle__icon {
    position: absolute;
    top: 6px;
    left: 5px;
    width: 15px;
    height: 15px;
    border: 2px solid currentColor;
    border-radius: 50%;
}

.search-toggle__icon::after {
    content: "";
    position: absolute;
    right: -7px;
    bottom: -4px;
    width: 8px;
    height: 2px;
    background: currentColor;
    transform: rotate(45deg);
    transform-origin: left center;
}

.header-search {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding-block: 20px;
    background: var(--color-red);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    pointer-events: none;
    transition:
        opacity var(--transition-fast),
        transform var(--transition-fast),
        visibility var(--transition-fast);
}

.site-header.is-search-open .header-search {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.header-search__form {
    display: flex;
    gap: 12px;
}

.header-search__input {
    flex: 1;
    padding: 10px 0;
    color: var(--color-white);
    background: transparent;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.7);
    font: inherit;
    outline: none;
}

.header-search__input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.header-search__submit {
    padding: 0;
    color: var(--color-white);
    background: transparent;
    border: 0;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.menu-toggle {
    display: none;
    position: relative;
    z-index: 3;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-white);
    cursor: pointer;
}

.menu-toggle__label {
    display: none;
}

.menu-toggle__icon {
    width: 28px;
    display: grid;
    gap: 6px;
}

.menu-toggle__icon span {
    display: block;
    height: 2px;
    background: currentColor;
    transform-origin: center;
    transition:
        width var(--transition-fast),
        transform var(--transition-fast);
}

.menu-toggle__icon span:first-child {
    width: 28px;
}

.menu-toggle__icon span:last-child {
    width: 20px;
    justify-self: end;
}

/* =========================================================
   9. FOOTER
   ========================================================= */

.site-footer {
    position: relative;
    margin-top: 48px;
    color: var(--color-white);
    background: var(--color-pink);
    overflow: hidden;
}

.site-footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: var(--color-red);
    -webkit-mask-image: url("../img/artspot-footer.svg");
    mask-image: url("../img/artspot-footer.svg");
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center center;
    mask-position: center center;
    -webkit-mask-size: auto 100%;
    mask-size: auto 100%;
    opacity: 0.25;
    pointer-events: none;
}

.site-footer__inner {
    position: relative;
    z-index: 1;
}

.site-footer__support {
    min-height: 76px;

    display: flex;
    align-items: center;
    justify-content: center;

    gap: 36px;

    padding-block: 14px;

    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
}

.site-footer__label {
    margin: 0;
    flex-shrink: 0;
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
}

.site-footer__support .site-footer__label {
    letter-spacing: 0.04em;
}

.site-footer__partners {
    display: flex;
    align-items: center;
    flex-wrap: wrap;

    gap: 28px;
}

.site-footer__partners a {
    display: block;
}

.site-footer__partners img {
    display: block;

    width: auto;
    height: 40px;
    max-width: 160px;

    object-fit: contain;
}

.site-footer__bottom {
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding-block: 14px;
    font-size: 0.85rem;
}

.site-footer__copyright {
    margin: 0;
    font-size: 0.85rem;
    white-space: nowrap;
}

.site-footer__social {
    display: flex;
    align-items: center;
    gap: 24px;
}

.site-footer__social-text {
    font-weight: 500;
}


/* =========================================================
   FOOTER — SOCIAL LINKS
   ========================================================= */

.social-links {
    display: flex;
    align-items: center;

    gap: 14px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;

    width: 32px;
    height: 32px;

    text-decoration: none;
}

.social-links img {
    display: block;

    width: 20px;
    height: 20px;

    opacity: 1;

    transition:
        opacity var(--transition-fast) ease;
}

.social-links a:hover img,
.social-links a:focus-visible img {
    opacity: 0.7;
}

.social-links a:focus-visible {
    outline: 1px solid var(--color-white);
    outline-offset: 4px;
}


/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {

    .social-links img {
        transition: none;
    }

    .social-links a:hover img,
    .social-links a:focus-visible img {
        transform: none;
    }

}

.site-footer__contact a {
    position: relative;
    color: inherit;
    text-decoration: none;
}

.site-footer__contact {
    display: flex;
    align-items: center;
    gap: 18px;
}

.site-footer__contact a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-fast);
}

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

/* =========================================================
   RESPONSIVE — HEADER / FOOTER
   ========================================================= */

@media (max-width: 1100px) {
    .site-footer__copyright {
        white-space: normal;
    }

    .site-footer__bottom {
        gap: 24px;
    }

    .site-footer__social {
        gap: 14px;
    }

    .social-links {
        gap: 14px;
    }

    .site-footer__contact {
        gap: 12px;
    }
}

@media (max-width: 960px) {
    :root {
        --header-height: 68px;
    }

    .site-header__inner {
        gap: 20px;
    }

    .search-toggle {
        margin-left: auto;
    }

    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-left: 6px;
    }

    .main-navigation {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;

        margin-left: 0;
        padding: 28px var(--page-padding) 36px;

        background: var(--color-red);

        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        pointer-events: none;

        transition:
            opacity var(--transition-fast),
            transform var(--transition-fast),
            visibility var(--transition-fast);
    }

    .site-header.is-open .main-navigation {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
    }

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

    .main-menu li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.28);
    }

    .main-menu a {
        display: block;
        width: 100%;
        padding-block: 15px;
        font-size: 1rem;
    }

    .main-menu a::after {
        display: none;
    }

    .site-header.is-open .menu-toggle__icon span:first-child {
        width: 28px;
        transform: translateY(4px) rotate(45deg);
    }

    .site-header.is-open .menu-toggle__icon span:last-child {
        width: 28px;
        justify-self: stretch;
        transform: translateY(-4px) rotate(-45deg);
    }
}

@media (max-width: 720px) {
    .site-footer__support {
        min-height: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        padding-block: 22px;
    }

    .site-footer__partners {
        width: 100%;
        gap: 18px;
    }

    .site-footer::before {
        opacity: 0.20;
    }

    .site-footer__bottom {
        min-height: 0;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 24px;
        padding-block: 22px;
    }

    .site-footer__copyright {
        width: 100%;
    }

    .site-footer__social {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .social-links {
        flex-direction: row;
        gap: 24px;
    }

    .site-footer__contact {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
}

@media (max-width: 620px) {
    .site-footer {
        margin-top: 64px;
    }
}