@charset "utf-8";

/* Shared shell: header, navigation and footer structure.
   Stage-specific sizing and colour live in stage-header.css and front-row.css. */

/* header */
header {
    position: absolute;
    top: 0;
    z-index: 100;
    transition: background var(--transition-normal);
}

header.is-fixed {
    position: fixed;
}

.header_center {
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: height var(--transition-normal);
}

.btn,
.close_btn {
    width: 44px;
    height: 44px;
}

.btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
}

.close_btn {
    display: grid;
    place-items: center;
}

.btn span:not(.screen_out) {
    width: 30px;
    height: 2px;
    display: block;
    background: var(--color-primary);
}

/* navigation */
nav {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    color: var(--color-primary);
    transition: opacity var(--transition-normal), visibility 0s linear 0.3s;
}

nav.is-open {
    display: block;
}

nav.is-open.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity var(--transition-normal), visibility 0s linear 0s;
}

.nav_wrap {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    margin: 0 auto;
    padding: 26px 0 40px;
}

.nav_header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.close_btn span:not(.screen_out) {
    grid-area: 1 / 1;
    width: 30px;
    height: 2px;
    display: block;
    background: var(--color-primary);
}

.close_btn span:not(.screen_out):nth-of-type(2) {
    transform: rotate(45deg);
}

.close_btn span:not(.screen_out):nth-of-type(3) {
    transform: rotate(-45deg);
}

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

.nav_body a {
    display: block;
    padding: 22px 0;
    font-family: var(--font-heading);
    font-size: clamp(3.2rem, 12vw, 6.4rem);
    font-weight: 800;
    line-height: 1;
    text-transform: uppercase;
}

/* footer */
footer {
    background: var(--color-bg-footer);
    color: var(--color-primary);
}

.footer_center {
    width: var(--container-mobile);
    margin: 0 auto;
    padding: 58px 0 32px;
}

.footer_top {
    text-align: center;
}

.footer_logo {
    align-items: center;
    margin-bottom: 24px;
}

.footer_logo .wordmark_name {
    font-size: 3.6rem;
}

.footer_top_text {
    color: var(--color-text-muted);
    font-family: var(--font-heading);
    font-weight: 800;
    text-transform: uppercase;
}

.footer_bottom {
    margin-top: 46px;
    border-top: 1px solid var(--color-border);
}

.footer_section {
    border-bottom: 1px solid var(--color-border);
}

.footer_section > summary {
    list-style: none;
}

.footer_section > summary::-webkit-details-marker {
    display: none;
}

.footer_toggle {
    width: 100%;
    min-height: 62px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 1.7rem;
    font-weight: 800;
    text-align: left;
    text-transform: uppercase;
    cursor: pointer;
}

.dropdown_icon {
    position: relative;
    width: 22px;
    height: 22px;
}

.dropdown_icon::before,
.dropdown_icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 14px;
    height: 2px;
    background: var(--color-primary);
    transform: translate(-50%, -50%);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.dropdown_icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.footer_section[open] .dropdown_icon::after {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(0);
}

.footer_bottom ul {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.footer_section[open] ul {
    max-height: 320px;
    padding-bottom: 18px;
}

.footer_bottom li + li {
    margin-top: 8px;
}

.footer_bottom li a {
    color: var(--color-text-muted);
    font-size: 1.45rem;
    transition: color var(--transition-fast);
}

.footer_bottom li a:hover {
    color: var(--color-accent-text);
}

.footer_official {
    padding: 32px 0;
    text-align: center;
}

.footer_official h3 {
    font-size: 1.7rem;
    text-transform: uppercase;
}

.official_link {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    color: var(--color-text-muted);
    font-weight: 700;
    transition: color var(--transition-fast);
}

.official_link:hover {
    color: var(--color-signal);
}

.copyright {
    border-top: 1px solid var(--color-border);
    padding-top: 28px;
    color: var(--color-text-muted);
    text-align: center;
}

/* Without scripting the navigation stays in the page flow. */
html:not(.js) header {
    position: relative;
    background: var(--color-bg);
}

html:not(.js) .header_center .btn,
html:not(.js) .nav_header {
    display: none;
}

html:not(.js) nav {
    position: static;
    display: block;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    background: var(--color-bg);
}

html:not(.js) .nav_wrap {
    min-height: auto;
    padding: 0 0 20px;
}

html:not(.js) .nav_body ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
}

html:not(.js) .nav_body li {
    border-bottom: 0;
}

html:not(.js) .nav_body a {
    padding: 8px 0;
    font-size: 1.4rem;
}

@media screen and (min-width: 768px) {
    .footer_center {
        width: var(--container-tablet);
        padding-top: 72px;
    }
}

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

    nav {
        position: absolute;
        inset: 0 0 auto auto;
        width: auto;
        display: flex !important;
        align-items: center;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transition: none;
    }

    .nav_wrap {
        min-height: auto;
        flex-direction: row;
        align-items: center;
        gap: 28px;
        margin: 0;
        padding: 0;
    }

    .nav_header {
        display: none;
    }

    .nav_body ul {
        display: flex;
        align-items: center;
    }

    .nav_body li {
        border-bottom: 0;
    }

    .nav_body a {
        position: relative;
        padding: 8px 0;
    }

    .nav_body a::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 100%;
        height: 2px;
        transform: scaleX(0);
        transform-origin: left;
        transition: transform var(--transition-normal);
    }

    .nav_body a:hover::after {
        transform: scaleX(1);
    }

    .footer_center {
        width: var(--container-desktop);
        padding: 84px 0 42px;
    }

    .footer_bottom {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 42px;
        margin-top: 64px;
        padding-top: 48px;
    }

    .footer_section {
        border-bottom: 0;
    }

    .footer_toggle {
        min-height: auto;
        padding-bottom: 18px;
        cursor: default;
    }

    .dropdown_icon {
        display: none;
    }

    .footer_bottom ul,
    .footer_section[open] ul {
        max-height: none;
        overflow: visible;
        padding-bottom: 0;
    }

    .footer_official {
        padding: 0;
        text-align: left;
    }

    .official_link {
        justify-content: flex-start;
    }

    .copyright {
        margin-top: 54px;
    }
}

@media screen and (min-width: 1920px) {
    .footer_center {
        width: var(--container-wide);
        padding-top: 96px;
    }
}