/* ═══════════════════════════════════════════════════════════
   Le Pignondor — header.css
   Single brass bottom rule, scroll accent shift,
   18+ header badge, hamburger, mobile full-screen overlay.
   ═══════════════════════════════════════════════════════════ */

/* ── Header — single 1.5px bottom border (rule 7) ──────── */
.header {
    background: var(--c-bg);
    height: var(--header-h);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    border-bottom: 1.5px solid var(--c-border);
    transition: border-bottom-color var(--dur) var(--ease);
}
.header--scrolled {
    border-bottom-color: var(--c-accent);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--s-24);
}

/* ── Wordmark ───────────────────────────────────────────── */
.header__brand {
    font-family: var(--f-heading);
    font-style: italic;
    font-weight: 500;
    font-size: 1.375rem;
    color: var(--c-text);
    text-decoration: none;
    flex-shrink: 0;
}

/* ── Nav ────────────────────────────────────────────────── */
.header__nav {
    display: flex;
    align-items: center;
    gap: var(--s-32);
}
.header__nav-link {
    font-family: var(--f-body);
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--c-text-dim);
    text-decoration: none;
    transition: color var(--dur) var(--ease);
    white-space: nowrap;
}
.header__nav-link:hover,
.header__nav-link.is-active {
    color: var(--c-text);
}

/* ── Utility nav (desktop only) ─────────────────────────── */
.header__utility {
    display: flex;
    align-items: center;
    gap: var(--s-16);
    margin-left: var(--s-24);
}
.header__utility-link {
    font-family: var(--f-body);
    font-weight: 500;
    font-size: 0.6875rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--c-text-dim);
    text-decoration: none;
    transition: color var(--dur) var(--ease);
}
.header__utility-link:hover {
    color: var(--c-text);
}

/* ── Right cluster (18+ badge + CTA) ───────────────────── */
.header__right {
    display: flex;
    align-items: center;
    gap: var(--s-16);
    flex-shrink: 0;
}

/* ── 18+ badge in header (28×28, rule 60) ───────────────── */
.header__age-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--c-accent);
    border-radius: var(--r-sm);
    font-family: var(--f-heading);
    font-weight: 600;
    font-size: 0.6875rem;
    color: var(--c-accent);
    text-decoration: none;
    flex-shrink: 0;
    line-height: 1;
}
.header__age-badge:hover {
    border-color: var(--c-accent-hover);
    color: var(--c-accent-hover);
}

/* ── Hamburger ──────────────────────────────────────────── */
.header__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 110;
}
.header__hamburger span {
    width: 100%;
    height: 2px;
    background: var(--c-text);
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.header__hamburger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.header__hamburger.is-active span:nth-child(2) {
    opacity: 0;
}
.header__hamburger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile overlay ─────────────────────────────────────── */
.header__mobile-nav {
    position: fixed;
    inset: 0;
    background: var(--c-bg);
    z-index: 105;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--s-32);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
}
.header__mobile-nav.is-open {
    opacity: 1;
    visibility: visible;
}
/* ── Mobile close button (X inside overlay) ────────────── */
.header__mobile-close {
    position: absolute;
    top: var(--s-24);
    right: var(--s-24);
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 110;
}
.header__mobile-close span {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 2px;
    background: var(--c-text);
}
.header__mobile-close span:first-child {
    transform: translate(-50%, -50%) rotate(45deg);
}
.header__mobile-close span:last-child {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.header__mobile-nav .header__nav-link {
    font-size: 1rem;
    letter-spacing: 2px;
    color: var(--c-text);
}