/* Public V1 header — layout, hierarchy, sticky bar (overrides scattered inline nav rules). */
.buy-top-navigation {
    position: sticky;
    top: 0;
    z-index: 120;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 var(--line);
}

.buy-top-navigation .nav-shell,
.buy-top-navigation .nav-inner {
    display: grid !important;
    grid-template-columns: minmax(0, auto) 1fr;
    align-items: center;
    gap: 20px 28px;
    min-height: 72px;
    padding: 10px 0;
    flex-wrap: nowrap !important;
}

.buy-top-navigation .logo {
    flex-shrink: 0;
}

.buy-top-navigation .logo img {
    width: 168px;
    height: auto;
    display: block;
}

.buy-top-navigation .nav-end {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 22px;
    min-width: 0;
}

.buy-top-navigation .nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 6px 4px;
    font-size: 13px;
    font-weight: 600;
}

.buy-top-navigation .nav-links a {
    color: var(--muted);
    padding: 8px 11px;
    border-radius: 8px;
    white-space: nowrap;
    transition: color 0.15s ease, background 0.15s ease;
}

.buy-top-navigation .nav-links a:hover {
    color: var(--ink);
    background: var(--wash);
}

.buy-top-navigation .nav-links a[aria-current="page"] {
    color: var(--purple);
    background: #f2ecfc;
}

.buy-top-navigation .nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    padding-left: 14px;
    border-left: 1px solid var(--line);
}

.buy-top-navigation .nav-sign-in {
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
    white-space: nowrap;
}

.buy-top-navigation .nav-sign-in:hover {
    color: var(--purple);
}

.buy-top-navigation .nav-actions .button {
    min-height: 40px;
    padding: 9px 16px;
    font-size: 13px;
    border-radius: 8px;
}

.buy-top-navigation .menu-button {
    display: none;
    justify-self: end;
    grid-column: 2;
    grid-row: 1;
}

/* Desktop: nav-end is a sibling of .nav-shell — stack both on one bar row */
@media (min-width: 981px) {
    #v1-nav.buy-top-navigation {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        justify-items: center;
    }

    #v1-nav.buy-top-navigation > .wrap.nav-shell,
    #v1-nav.buy-top-navigation > .nav-end {
        grid-column: 1;
        grid-row: 1;
        width: min(1160px, calc(100% - 64px));
        box-sizing: border-box;
    }

    #v1-nav.buy-top-navigation > .wrap.nav-shell {
        position: relative;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 72px;
        padding: 10px 0;
        pointer-events: none;
        background: transparent;
    }

    #v1-nav.buy-top-navigation > .wrap.nav-shell > * {
        pointer-events: auto;
    }

    #v1-nav.buy-top-navigation > .nav-end {
        z-index: 1;
        display: flex !important;
        align-items: center;
        justify-content: flex-end;
        gap: 22px;
        min-height: 72px;
        padding: 10px 0;
        position: static;
        inset: auto;
        opacity: 1;
        visibility: visible;
        transform: none;
        pointer-events: none;
        margin: 0;
        background: transparent;
        overflow: visible;
    }

    #v1-nav.buy-top-navigation > .nav-end .nav-links,
    #v1-nav.buy-top-navigation > .nav-end .nav-actions {
        pointer-events: auto;
    }

    #v1-nav.buy-top-navigation > .nav-mobile-backdrop {
        display: none !important;
    }

    .buy-top-navigation .menu-button {
        display: none !important;
    }

    .buy-top-navigation .nav-shell,
    .buy-top-navigation .nav-inner {
        grid-template-columns: auto 1fr;
    }
}

@media (min-width: 981px) and (max-width: 1120px) {
    .buy-top-navigation .nav-links {
        gap: 2px;
    }

    .buy-top-navigation .nav-links a {
        padding: 7px 8px;
        font-size: 12px;
    }

    .buy-top-navigation .nav-actions {
        padding-left: 10px;
        gap: 8px;
    }

    .buy-top-navigation .logo img {
        width: 156px;
    }
}

/* Mobile: closed = sticky bar; open = nav becomes viewport-sized layer (avoids fixed + backdrop-filter trap) */
@media (max-width: 980px) {
    html.nav-menu-open {
        overflow: hidden;
    }

    html.nav-menu-open body {
        overflow: hidden;
        touch-action: none;
    }

    #v1-nav.buy-top-navigation {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        /* One rule under the bar — not .nav border-bottom + box-shadow */
        border-bottom: none !important;
        box-shadow: 0 1px 0 var(--line);
    }

    #v1-nav.buy-top-navigation .wrap.nav-shell {
        display: grid !important;
        grid-template-columns: 1fr auto !important;
        align-items: center !important;
        gap: 12px !important;
        min-height: 64px;
        padding: 12px 0;
        flex-wrap: nowrap !important;
        width: min(1160px, calc(100% - 40px));
        margin-left: auto;
        margin-right: auto;
    }

    #v1-nav.buy-top-navigation .logo {
        grid-column: 1;
        display: block;
    }

    #v1-nav.buy-top-navigation .logo img {
        width: 154px;
    }

    #v1-nav.buy-top-navigation .menu-button {
        grid-column: 2;
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        padding: 0;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: #fff;
        color: var(--ink);
        position: relative;
        z-index: 3;
    }

    #v1-nav.buy-top-navigation .menu-button:hover {
        background: var(--wash);
        border-color: #d3c8e9;
    }

    #v1-nav.buy-top-navigation .nav-mobile-backdrop {
        display: none !important;
    }

    #v1-nav.buy-top-navigation:not(.open) > #v1-nav-end {
        display: none !important;
    }

    #v1-nav.buy-top-navigation.open {
        position: fixed;
        inset: 0;
        z-index: 10050;
        display: flex;
        flex-direction: column;
        margin: 0;
        padding: 0;
        padding-top: env(safe-area-inset-top, 0px);
        background: #fff;
        box-shadow: none !important;
        overflow: hidden;
        border-bottom: none !important;
    }

    #v1-nav.buy-top-navigation.open .wrap.nav-shell {
        flex-shrink: 0;
        position: relative;
        z-index: 2;
        background: #fff;
        box-shadow: none !important;
        border-bottom: 1px solid var(--line);
        padding-bottom: 10px;
    }

    #v1-nav.buy-top-navigation.open > #v1-nav-end {
        display: flex !important;
        flex: 1 1 auto;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        position: relative;
        z-index: 1;
        min-height: 0;
        margin: 0;
        padding: 4px 20px calc(20px + env(safe-area-inset-bottom, 0px));
        overflow-x: hidden;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        pointer-events: auto !important;
        background: linear-gradient(180deg, #fff 0%, #f8f6fc 100%);
    }

    #v1-nav.buy-top-navigation.open #v1-links {
        display: flex !important;
        flex-direction: column;
        flex: 0 0 auto;
        flex-grow: 0;
        justify-content: flex-start !important;
        align-items: stretch !important;
        gap: 2px;
        width: 100%;
        max-width: 28rem;
        margin: 0 auto;
        padding: 8px 0 0;
    }

    #v1-nav.buy-top-navigation.open #v1-links a {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        min-height: 52px;
        padding: 12px 14px;
        font-size: 17px;
        font-weight: 600;
        border-radius: 10px;
        color: var(--ink);
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
    }

    #v1-nav.buy-top-navigation.open #v1-links a::after {
        content: "›";
        font-size: 22px;
        color: #8c849d;
        font-weight: 400;
        line-height: 1;
    }

    #v1-nav.buy-top-navigation.open #v1-links a[aria-current="page"] {
        background: #f2ecfc;
        color: var(--purple);
    }

    #v1-nav.buy-top-navigation.open #v1-links a:active {
        background: var(--wash);
    }

    #v1-nav.buy-top-navigation.open #v1-actions {
        display: grid !important;
        grid-template-columns: 1fr;
        gap: 12px;
        width: 100%;
        max-width: 28rem;
        margin: auto auto 0;
        padding: 20px 0 0;
        border-left: 0;
        border-top: 1px solid var(--line);
        opacity: 1 !important;
        visibility: visible !important;
    }

    #v1-nav.buy-top-navigation.open .nav-sign-in {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 48px;
        border: 1px solid #ded9e8;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 600;
        color: var(--ink);
    }

    #v1-nav.buy-top-navigation.open #v1-actions .button {
        width: 100%;
        min-height: 50px;
        font-size: 15px;
    }

    #v1-nav.buy-top-navigation .menu-line {
        transform-origin: 12px 12px;
        transition: transform 0.18s ease, opacity 0.18s ease;
    }

    #v1-nav.buy-top-navigation.open .menu-line.first {
        transform: translateY(6px) rotate(45deg);
        transform-origin: 12px 6px;
    }

    #v1-nav.buy-top-navigation.open .menu-line.middle {
        opacity: 0;
    }

    #v1-nav.buy-top-navigation.open .menu-line.last {
        transform: translateY(-6px) rotate(-45deg);
        transform-origin: 12px 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .buy-top-navigation .nav-links a,
    .buy-top-navigation .nav-end,
    .buy-top-navigation .nav-mobile-backdrop,
    .buy-top-navigation .nav-actions {
        transition: none !important;
        animation: none !important;
        transform: none !important;
    }

    .buy-top-navigation.open .nav-links a {
        opacity: 1;
    }
}

@media (min-width: 981px) {
    .buy-top-navigation .nav-end,
    .buy-top-navigation .nav-links,
    .buy-top-navigation .nav-actions {
        display: flex !important;
    }

    .buy-top-navigation .nav-mobile-backdrop {
        display: none !important;
    }
}

/* Closed mobile: hide menu panel and CTAs in document flow (beats page inline .nav-actions rules) */
@media (max-width: 980px) {
    #v1-nav.buy-top-navigation:not(.open) > #v1-nav-end,
    #v1-nav.buy-top-navigation:not(.open) #v1-links,
    #v1-nav.buy-top-navigation:not(.open) #v1-actions,
    #v1-nav.buy-top-navigation:not(.open) .nav-links,
    #v1-nav.buy-top-navigation:not(.open) .nav-actions,
    #v1-nav.buy-top-navigation:not(.open) .nav-actions .button,
    #v1-nav.buy-top-navigation:not(.open) .nav-actions > a {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
        overflow: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
    }
}

.buy-top-navigation .nav-mobile-backdrop {
    display: none;
}

@media (max-width: 980px) and (prefers-reduced-motion: reduce) {
    #v1-nav.buy-top-navigation .menu-line {
        transition: none;
    }
}

@media (min-width: 981px) {
    #v1-nav.buy-top-navigation #v1-nav-end {
        position: static !important;
        display: flex !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        inset: auto !important;
        padding: 10px 0 !important;
        background: transparent !important;
        overflow: visible !important;
        pointer-events: none !important;
    }

    #v1-nav.buy-top-navigation #v1-nav-end .nav-links,
    #v1-nav.buy-top-navigation #v1-nav-end .nav-actions {
        display: flex !important;
        pointer-events: auto !important;
    }
}