.app-shell {
    min-height: 100vh;
    min-height: 100dvh;
    min-height: var(--app-height);
    display: flex;
    flex-direction: column;
}

/* ── Top chrome: brand + cart + ticker aligned ── */

.top-grid {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: var(--header-height) auto;
    position: sticky;
    top: 0;
    z-index: 250;
    padding-top: var(--safe-top);
}

.top-grid__brand {
    grid-column: 1;
    grid-row: 1;
    background: var(--surface);
    border-bottom: 3px solid var(--purple);
    box-shadow: 0 3px 0 var(--purple-dark);
}

.top-grid__header {
    grid-column: 2;
    grid-row: 1;
}

.top-grid__ticker {
    grid-column: 1 / -1;
    grid-row: 2;
}

.app-body {
    flex: 1;
    display: flex;
    min-height: 0;
}

.main-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition);
}

.main-content.is-sidebar-collapsed {
    margin-left: 0;
}

/* ── Header (cart) ── */

.site-header {
    min-height: var(--header-height);
    background: var(--surface);
    border-bottom: 3px solid var(--purple);
    box-shadow: 0 3px 0 var(--purple-dark);
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.header-right {
    display: flex;
    align-items: center;
    padding: 0 14px;
}

.cart-icon-btn {
    position: relative;
    background: var(--purple);
    color: #fff;
    border: 2px solid var(--purple-dark);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
    transition: transform 0.06s, box-shadow 0.06s;
}

.cart-icon-btn:active {
    transform: translate(2px, 2px);
    box-shadow: none;
}

.cart-badge {
    position: absolute;
    top: -9px;
    right: -9px;
    background: #DC2626;
    color: #fff;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: 11px;
    display: none;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    border: 2px solid var(--surface);
}

/* ── Ticker ── */

.ticker-wrap {
    background: var(--purple-deep);
    border-bottom: 2px solid var(--purple-dark);
    padding: 7px 0;
    overflow: hidden;
}

.ticker-track {
    display: inline-flex;
    white-space: nowrap;
    animation: ticker-scroll 50s linear infinite;
    will-change: transform;
}

@keyframes ticker-scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.ticker-item {
    display: inline-flex;
    align-items: center;
    color: #E9D5FF;
    font-weight: 500;
    font-size: 13px;
    padding: 0 28px;
    letter-spacing: 0.3px;
}

.ticker-sep {
    color: var(--purple-soft);
    margin: 0 4px;
    font-size: 16px;
}

/* ── Page container ── */

.page-container {
    flex: 1;
    width: 100%;
    max-width: calc(var(--content-max) + 32px);
    margin: 0 auto;
    padding: 20px 16px calc(40px + var(--safe-bottom));
}

.page {
    display: none;
    animation: page-in 0.28s ease;
}

.page.is-active {
    display: block;
}

@keyframes page-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header {
    margin-bottom: 24px;
}

.page-title {
    font-family: 'Press Start 2P', cursive;
    font-size: 13px;
    color: var(--purple-dark);
    line-height: 1.8;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.page-subtitle {
    font-size: 15px;
    color: var(--text-muted);
    font-weight: 500;
    max-width: 52ch;
}

.site-footer {
    text-align: center;
    padding: 24px 16px calc(24px + var(--safe-bottom));
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    border-top: 2px solid var(--purple-mid);
    line-height: 2;
    flex-shrink: 0;
}

.site-footer a {
    text-decoration: none;
}

.site-footer a:hover {
    text-decoration: underline;
}

@media (min-width: 900px) {
    .main-content {
        margin-left: var(--sidebar-width);
    }

    .page-container {
        padding-top: 28px;
        padding-bottom: calc(48px + var(--safe-bottom));
    }
}

@media (max-width: 899px) {
    .top-grid {
        grid-template-columns: auto 1fr;
    }

    .top-grid__brand {
        border-bottom: none;
    }

    .top-grid__ticker {
        grid-column: 1 / -1;
    }
}