/* =============================================================================
   header.css — Sticky nav + mobile hamburger
   ============================================================================= */

/* ── Sticky behaviour ──────────────────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-dark);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.site-header.site-header--fade {
    background-image: linear-gradient(180deg, rgba(0, 0, 0, 0.96) 0%, rgba(0, 0, 0, 0.42) 45%, rgba(0, 0, 0, 0) 100%);
    background-color: transparent;
    box-shadow: none;
}

.site-header__inner {
    display: flex;
    align-items: center;
    gap: 24px;
    height: 68px;
    padding: 0;
    margin: 0;
    padding-left: 24px;
    max-width: unset;
}

/* ── Logo ──────────────────────────────────────────────────────────────────── */
.site-header__logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.site-header__logo img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

/* Brand name next to badge */
.site-header__brand-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-accent-highlight);
    line-height: 1.2;
    white-space: nowrap;
}

/* ── Nav ───────────────────────────────────────────────────────────────────── */
.site-nav {
    flex: 1;
    padding-top: 10px;
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: flex-end;
    margin-right: 65px;
}

.site-nav__item {
    position: relative;
}

.site-nav__link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.65rem;
    letter-spacing: 0;
    text-transform: none;
    border-radius: 3px;
    transition: color 0.15s ease, background-color 0.15s ease;
}

.site-nav__link:hover,
.site-nav__link:focus-visible,
.site-nav__item.current-menu-item > .site-nav__link {
    color: var(--color-accent);
    background-color: rgba(42, 128, 0, 0.06);
    outline: none;
}

/* Active/current item underline */
.site-nav__item.current-menu-item > .site-nav__link,
.site-nav__item.current-menu-ancestor > .site-nav__link {
    border-bottom: 1px solid var(--color-accent-highlight);
    border-radius: 0;
}

.site-nav__chevron {
    transition: transform 0.2s ease;
    flex-shrink: 0;
    width: 8px;
}

.site-nav__chevron path {
    stroke: var(--color-accent-highlight);
}

/* ── Dropdown ──────────────────────────────────────────────────────────────── */
.site-nav__dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background-color: var(--color-white);
    border: 1px solid #e4e4e4;
    border-radius: var(--radius-card);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    padding: 6px 0;
    z-index: 100;
    margin-top: 0;
    pointer-events: none;
}

.site-nav__item:hover .site-nav__dropdown,
.site-nav__item:focus-within .site-nav__dropdown {
    display: block;
    pointer-events: auto;
}

.site-nav__item:hover .site-nav__chevron,
.site-nav__item:focus-within .site-nav__chevron {
    transform: rotate(180deg);
}

.site-nav__dropdown .site-nav__link {
    font-size: var(--fs-sm);
    text-transform: none;
    letter-spacing: 0;
    font-weight: 400;
    border-radius: 0;
    border-bottom: none;
    padding: 10px 20px;
    width: 100%;
    color: var(--color-text);
}

.site-nav__dropdown .site-nav__link:hover,
.site-nav__dropdown .site-nav__link:focus-visible {
    color: var(--color-accent);
    background-color: rgba(42, 128, 0, 0.06);
}

/* ── Multi-column dropdown ─────────────────────────────────────────────────── */
.site-nav__dropdown--cols {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    width: clamp(450px, 60vw, 650px);
    padding: 16px 12px;
    gap: 8px;
    left: auto;
    right: 0;
}

.site-nav__item:hover .site-nav__dropdown--cols,
.site-nav__item:focus-within .site-nav__dropdown--cols {
    display: grid;
    pointer-events: auto;
}

.site-nav__dropdown--cols > .site-nav__item {
    break-inside: avoid;
}

.site-nav__dropdown--cols > .menu-item-has-children > .site-nav__link {
    font-weight: 700;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-dark);
    padding: 6px 8px;
    pointer-events: none;
    cursor: default;
    border-radius: 0;
}

.site-nav__dropdown--cols .site-nav__chevron {
    display: none;
}

.site-nav__dropdown--cols .site-nav__dropdown {
    position: static;
    display: block;
    min-width: auto;
    border: none;
    box-shadow: none;
    padding: 0;
    background: none;
    pointer-events: auto;
}

.site-nav__dropdown--cols .site-nav__dropdown .site-nav__link {
    padding: 5px 8px;
    font-size: 0.68rem;
    border-radius: 3px;
}

/* ── Header CTA button ─────────────────────────────────────────────────────── */
.site-header__cta {
    margin-left: auto;
    flex-shrink: 0;
}

/* ── Hamburger button ──────────────────────────────────────────────────────── */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-btn);
    margin-left: auto;
    transition: background-color 0.15s ease;
}

.hamburger:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.hamburger__line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
    transform-origin: center;
}

/* Hamburger open state — JS adds .is-open to button */
.hamburger.is-open .hamburger__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.is-open .hamburger__line:nth-child(2) {
    opacity: 0;
}
.hamburger.is-open .hamburger__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile nav (≤ 768px) ──────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .site-header__inner {
        flex-wrap: wrap;
        height: auto;
        padding-block: 12px;
    }

    .hamburger {
        display: flex;
    }

    .site-header__cta {
        display: none;
    }

    .site-nav {
        display: none;
        width: 100%;
        order: 3;
        padding-bottom: 12px;
    }

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

    .site-nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }

    .site-nav__item {
        width: 100%;
    }

    .site-nav__link {
        width: 100%;
        border-radius: 0;
        padding: 10px 14px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .site-nav__dropdown {
        position: static;
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0;
        background-color: rgba(0, 0, 0, 0.2);
    }

    .site-nav__item:hover .site-nav__dropdown,
    .site-nav__item:focus-within .site-nav__dropdown {
        display: none;
    }

    /* On mobile, dropdown toggled by JS via .is-open on parent li */
    .site-nav__item.is-open .site-nav__dropdown {
        display: block;
    }

    .site-nav__dropdown .site-nav__link {
        padding-left: 32px;
        color: var(--color-white);
    }

    .site-nav__dropdown--cols {
        grid-template-columns: 1fr;
        min-width: auto;
        gap: 0;
    }

    .site-nav__dropdown--cols > .menu-item-has-children > .site-nav__link {
        padding: 12px 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        pointer-events: auto;
        cursor: pointer;
        color: var(--color-white);
    }

    .site-nav__dropdown--cols .site-nav__dropdown {
        display: none;
    }

    .site-nav__dropdown--cols > .site-nav__item.is-open .site-nav__dropdown {
        display: block;
    }

    .site-nav__dropdown--cols .site-nav__dropdown .site-nav__link {
        padding-left: 32px;
        color: var(--color-white);
    }
}