/* Shared header, footer, shell, and button rules aligned with the older light app shell. */
:root {
    --shared-brand-primary: var(--brand-deep, var(--brand-primary, #1f4e5f));
    --shared-brand-secondary: var(--brand-mid, var(--brand-secondary, #3f6d80));
    --shared-ink: var(--ink, var(--text-primary, #102a43));
    --shared-muted: var(--muted, var(--text-secondary, #52606d));
    --shared-primary-rgb: var(--brand-primary-rgb, 31, 78, 95);
}
.shell,
.wizard-shell {
    width: calc(100% - 12px) !important;
    max-width: none !important;
    margin: 0 auto;
    padding: 18px 18px 24px !important;
}

.topbar,
.site-header,
.site-header-nav {
    position: sticky;
    top: 14px;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 18px;
    margin-bottom: 18px;
    border-radius: 24px;
    background: rgba(255,255,255,0.7);
    border: 1px solid rgba(31, 78, 95, 0.10);
    box-shadow: 0 18px 44px rgba(15, 23, 42, 0.06);
    backdrop-filter: blur(18px);
}

.footer,
.site-footer {
    margin: 22px 0 8px;
    padding: 22px 24px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    background: rgba(255,255,255,0.78);
    border: 1px solid rgba(31, 78, 95, 0.10);
    box-shadow: 0 18px 44px rgba(15, 23, 42, 0.06);
    backdrop-filter: blur(18px);
}

.brand,
.site-logo,
.site-header-nav .site-logo-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    min-width: 0;
    flex: 0 0 auto;
}

.brand img,
.site-logo img,
.site-header-nav .site-logo-link img {
    height: 38px;
    display: block;
    padding: 6px 10px;
    border-radius: 14px;
    background: rgba(255,255,255,0.94);
}

.brand-meta,
.site-brand-text {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.brand-meta strong,
.site-brand-text strong {
    font-size: 13px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--shared-ink);
    white-space: nowrap;
}

.brand-meta span,
.site-brand-text span {
    display: none;
}

.nav,
.site-nav {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    padding: 6px;
    border-radius: 999px;
    background: rgba(244,248,250,0.92);
    border: 1px solid rgba(31, 78, 95, 0.08);
}

.nav a,
.site-nav a,
.account-trigger,
.footer-links a,
.site-footer-links a,
.button,
.button.light,
.button.white,
.builder-promo-button,
button.nav-button,
.secondary-button,
.ghost-button,
.component-download-button,
.library-browse-button,
.warning-ack-actions button,
.blocking-modal-actions button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    color: var(--shared-brand-primary);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.01em;
    white-space: nowrap;
    text-decoration: none;
    border: 1px solid transparent;
    transition: background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.nav a:hover,
.site-nav a:hover,
.account-menu:hover .account-trigger,
.account-menu:focus-within .account-trigger,
.footer-links a:hover,
.site-footer-links a:hover,
.button:hover,
button.nav-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.component-download-button:not(:disabled):hover,
.library-browse-button:hover {
    background: rgba(var(--shared-primary-rgb), 0.08);
    transform: translateY(-1px);
}

.nav a.primary,
.site-nav a.active,
.site-nav a.primary,
.nav a.active,
.button.primary,
.builder-promo-button,
button.nav-button:not(.secondary),
.warning-ack-actions button.primary,
.component-download-button:not(.secondary),
.library-browse-button,
.blocking-modal-actions button:not(.secondary-button) {
    color: #fff;
    background: var(--shared-brand-primary);
    border-color: transparent;
    box-shadow: 0 10px 22px rgba(31, 78, 95, 0.16);
}

.button.white {
    background: rgba(255,255,255,0.92);
    color: var(--shared-brand-primary);
    border-color: rgba(31, 78, 95, 0.14);
    box-shadow: 0 12px 24px -18px rgba(15, 23, 42, 0.24);
}

.button.light,
button.nav-button.secondary,
.secondary-button,
.ghost-button,
.component-download-button.secondary,
.warning-ack-actions button.secondary,
.blocking-modal-actions .secondary-button {
    background: rgba(255,255,255,0.86);
    color: var(--shared-brand-primary);
    border-color: rgba(31, 78, 95, 0.14);
}

.site-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 14px;
    border: 1px solid rgba(31, 78, 95, 0.18);
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(245,248,250,0.9));
    color: var(--shared-brand-primary);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
}

.site-nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 14px;
    border: 1px solid rgba(31, 78, 95, 0.18);
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(245,248,250,0.9));
    color: var(--shared-brand-primary);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
}

.site-menu-toggle:hover,
.site-nav-toggle:hover {
    transform: translateY(-1px);
}

.site-banner {
    margin: 0 0 18px;
    padding: 14px 18px;
    border-radius: 22px;
    background: linear-gradient(135deg, rgba(194, 65, 12, 0.96), rgba(234, 88, 12, 0.9));
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 18px 36px rgba(194, 65, 12, 0.16);
}

.site-banner strong {
    display: block;
    margin-bottom: 4px;
    font-size: 14px;
    letter-spacing: 0.03em;
}

.site-banner p {
    margin: 0;
    color: rgba(255,255,255,0.92);
    font-size: 14px;
    line-height: 1.55;
}

.site-footer,
.footer {
    color: var(--shared-muted);
    font-size: 14px;
}

.site-footer strong,
.footer-copy strong {
    color: var(--shared-ink);
    display: block;
    margin-bottom: 4px;
    font-size: 15px;
}

.site-footer-copy,
.footer-copy {
    max-width: 640px;
    line-height: 1.6;
}

.site-footer-links,
.footer-links {
    display: inline-flex;
    gap: 10px;
    flex-wrap: wrap;
}

.site-footer-links a,
.footer-links a {
    background: rgba(255,255,255,0.90);
    border-color: rgba(31, 78, 95, 0.10);
    color: var(--shared-brand-primary);
}

@media (max-width: 900px) {
    .topbar,
    .site-header,
    .site-header-nav {
        flex-direction: row;
        flex-wrap: nowrap;
        align-items: center;
        position: relative;
    }
    .site-menu-toggle,
    .site-nav-toggle {
        display: inline-flex;
        margin-left: auto;
    }
    .nav,
    .site-nav {
        display: none !important;
        position: absolute;
        top: calc(100% + 8px);
        right: 0;
        z-index: 90;
        width: min(280px, calc(100vw - 16px)) !important;
        border-radius: 24px;
        padding: 10px;
        gap: 10px;
        background: rgba(255,255,255,0.98);
        border: 1px solid rgba(31, 78, 95, 0.10);
        box-shadow: 0 22px 44px rgba(15, 23, 42, 0.14);
    }
    .nav.is-open,
    .site-nav.is-open {
        display: grid !important;
        grid-template-columns: 1fr;
    }
    .nav a,
    .site-nav a,
    .account-trigger,
    .footer-links a,
    .site-footer-links a,
    .button,
    .button.light,
    .button.white,
    .builder-promo-button,
    button.nav-button,
    .secondary-button,
    .ghost-button,
    .component-download-button,
    .library-browse-button,
    .warning-ack-actions button,
    .blocking-modal-actions button,
    .site-nav-toggle,
    .site-menu-toggle {
        width: 100%;
        min-height: 44px;
        justify-content: center;
        text-align: center;
    }
    .account-menu {
        width: 100%;
    }
    .account-menu::after {
        display: none;
    }
    .account-dropdown {
        position: static;
        top: auto;
        right: auto;
        width: 100%;
        min-width: 0;
        margin-top: 0;
        padding: 0;
        background: transparent;
        border: 0;
        box-shadow: none;
        border-radius: 0;
    }
    .account-dropdown a {
        margin-top: 6px;
    }
    .account-dropdown a:first-child {
        display: none;
    }
    .site-menu-toggle-label,
    .site-nav-toggle-label {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        padding: 0 !important;
        margin: -1px !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
        white-space: nowrap !important;
        border: 0 !important;
    }
    .site-header-nav .site-menu-toggle,
    .site-header .site-nav-toggle {
        flex: 0 0 44px;
        width: 44px;
        min-width: 44px;
        height: 44px;
        padding: 0;
    }
    .brand-meta strong,
    .site-brand-text strong {
        display: none !important;
    }
}

@media (max-width: 640px) {
    .shell,
    .wizard-shell {
        width: 100% !important;
        padding: 8px !important;
    }
    .brand img,
    .site-logo img,
    .site-header-nav .site-logo-link img {
        height: 34px;
        padding: 5px 8px;
    }
    .brand-meta strong,
    .site-brand-text strong {
        font-size: 11px;
        letter-spacing: 0.12em;
    }
    .nav,
    .site-nav {
        grid-template-columns: 1fr;
    }
}