/* ── header.css ─ Header bar, nav, 18+ badge, hamburger ─── */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-h);
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-border);
    transition: border-color var(--dur) var(--ease);
}

.site-header--scrolled {
    border-bottom-color: var(--c-accent);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-w);
    margin-inline: auto;
    padding-inline: var(--s-24);
}

/* ── Wordmark ────────────────────────────────────────────── */
.site-header__brand {
    display: flex;
    align-items: center;
    gap: var(--s-12);
    text-decoration: none;
}

.site-header__wordmark {
    font-family: var(--f-heading);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--c-text);
    line-height: 1;
}

/* ── Navigation ──────────────────────────────────────────── */
.site-header__nav {
    display: flex;
    align-items: center;
    gap: var(--s-4);
}

.site-header__nav-list {
    display: flex;
    align-items: center;
    gap: var(--s-4);
}

.site-header__nav-link {
    font-family: var(--f-body);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--c-text-dim);
    padding: var(--s-8) var(--s-12);
    border-radius: var(--r-sm);
    transition: color var(--dur) var(--ease);
    text-decoration: none;
}

.site-header__nav-link:hover,
.site-header__nav-link--active {
    color: var(--c-text);
}

/* ── Utility nav ─────────────────────────────────────────── */
.site-header__utility {
    display: flex;
    align-items: center;
    gap: var(--s-4);
    margin-left: var(--s-16);
    padding-left: var(--s-16);
    border-left: 1px solid var(--c-border);
}

/* ── 18+ Badge ───────────────────────────────────────────── */
.site-header__age-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    margin-left: var(--s-12);
    flex-shrink: 0;
}

.site-header__age-badge img,
.site-header__age-badge svg {
    width: 24px;
    height: 24px;
}

/* ── Hamburger ───────────────────────────────────────────── */
.site-header__hamburger {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.site-header__hamburger-line {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--c-text);
    position: relative;
    transition: background var(--dur) var(--ease);
}

.site-header__hamburger-line::before,
.site-header__hamburger-line::after {
    content: '';
    position: absolute;
    left: 0;
    width: 20px;
    height: 2px;
    background: var(--c-text);
    transition: transform var(--dur) var(--ease);
}

.site-header__hamburger-line::before { top: -6px; }
.site-header__hamburger-line::after  { top: 6px; }

/* ── Mobile overlay ──────────────────────────────────────── */
.mobile-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: var(--c-bg);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
    overflow-y: auto;
    padding: var(--s-32) var(--s-24);
}

.mobile-nav--open {
    opacity: 1;
    visibility: visible;
}

.mobile-nav__list {
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
}

.mobile-nav__link {
    font-family: var(--f-body);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--c-text);
    padding: var(--s-12) 0;
    border-bottom: 1px solid var(--c-border);
    text-decoration: none;
    transition: color var(--dur) var(--ease);
}

.mobile-nav__link:hover {
    color: var(--c-accent);
}

.mobile-nav__close {
    position: absolute;
    top: var(--s-16);
    right: var(--s-24);
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--c-text);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}