main {
    width: min(1120px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 48px 0;
}

h1 {
    margin: 0 0 8px;
    font-size: 32px;
}

.sku-list {
    display: flex;
    gap: 20px;
    align-items: stretch;
    margin-top: 32px;
    overflow-x: auto;
    padding-bottom: 8px;
}

.sku-card {
    flex: 0 0 200px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 24px;
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.1);
}

.sku-name {
    font-size: 22px;
    font-weight: 800;
    color: #0f172a;
}

.sku-price-row {
    display: flex;
    align-items: baseline;
    width: 200px;
}

.sku-price {
    flex: 0 0 90px;
    font-size: 28px;
    font-weight: 800;
    color: #2563eb;
}

.sku-price-separator {
    flex: 0 0 16px;
    color: #64748b;
    font-size: 16px;
    text-align: center;
}

.sku-duration {
    flex: 0 0 94px;
    color: #64748b;
    font-size: 18px;
    white-space: nowrap;
}

.sku-description {
    min-height: 50px;
    color: #64748b;
}

.sku-meta {
    color: #334155;
    font-size: 15px;
}

.sku-feature-list {
    display: grid;
    gap: 14px;
}

.sku-period-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sku-period-selector .sku-period-button {
    margin-top: 0;
    padding: 8px 10px;
    border: 1px solid #cbd5e1;
    border-radius: 999px;
    background: #fff;
    color: #334155;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.sku-period-selector .sku-period-button:hover,
.sku-period-selector .sku-period-button.active {
    border-color: #2563eb;
    background: #eff6ff;
    color: #1d4ed8;
}

.sku-card button {
    margin-top: auto;
    padding: 12px 16px;
    border: 0;
    border-radius: 12px;
    background: #2563eb;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}

.sku-card button:hover {
    background: #1d4ed8;
}

.sku-card button:disabled,
.sku-card button:disabled:hover {
    background: #cbd5e1;
    color: #64748b;
    cursor: not-allowed;
}

.sku-card .sku-period-selector .sku-period-button {
    margin-top: 0;
    border: 1px solid #cbd5e1;
    background: #fff;
    color: #334155;
}

.sku-card .sku-period-selector .sku-period-button:hover,
.sku-card .sku-period-selector .sku-period-button.active {
    border-color: #2563eb;
    background: #eff6ff;
    color: #1d4ed8;
}

.message {
    margin-top: 20px;
    padding: 12px;
    border-radius: 12px;
    background: #eff6ff;
    color: #1d4ed8;
    font-size: 14px;
}

@media (max-width: 640px) {
    .auth-banner-content {
        align-items: flex-start;
        flex-direction: column;
    }

    .user-summary {
        text-align: left;
    }

    .user-menu-panel {
        right: auto;
        left: 0;
    }

    .login-overlay {
        align-items: start;
        padding-top: 80px;
    }
}

@media (prefers-color-scheme: dark) {
    body {
        background: #020617;
        color: #e2e8f0;
    }

    .auth-banner {
        border-color: #334155;
        background: #0f172a;
    }

    .auth-banner-title,
    .login-title,
    .user-name,
    .sku-name {
        color: #f8fafc;
    }

    p, .user-email, .sku-description, .sku-price-separator, .sku-duration, .sku-meta {
        color: #94a3b8;
    }

    .sku-card {
        background: #0f172a;
        box-shadow: none;
    }

    .banner-message {
        color: #93c5fd;
    }

    .login-dialog {
        background: #0f172a;
        box-shadow: none;
    }

    .login-close-button {
        background: #1e293b;
        color: #e2e8f0;
    }

    .login-divider {
        color: #94a3b8;
    }

    .login-divider::before,
    .login-divider::after {
        background: #334155;
    }

    .auth-input,
    .auth-button.secondary,
    .user-menu-button:hover,
    .user-menu-button[aria-expanded="true"],
    .user-menu-plan,
    .user-menu-panel,
    .user-menu-item {
        border-color: #334155;
        background: #020617;
        color: #e2e8f0;
    }

    .user-menu-plan-label,
    .user-menu-plan-remaining {
        color: #94a3b8;
    }

    .user-menu-plan-level {
        color: #f8fafc;
    }

    .user-menu-plan:hover,
    .user-menu-item:hover {
        background: #1e293b;
        color: #93c5fd;
    }

    .logout-button {
        color: #fca5a5;
    }
}