.portal-shell {
    display: flex;
    flex-direction: column;
    min-height: 100svh;
}

.portal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 22px;
    padding: 22px 28px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.portal-header .brand {
    flex-shrink: 0;
}

.portal-header-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 20px;
    min-width: 0;
    margin-left: auto;
}

.portal-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
}

.portal-nav-link {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    font-size: 12px;
    font-weight: 400;
    text-decoration: none;
    color: var(--muted);
}

.portal-nav-link:hover {
    color: var(--text);
}

.portal-nav-link.is-active {
    color: var(--text);
    font-weight: 700;
}

.portal-user {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-size: 12px;
    font-weight: 600;
}

.portal-header-right > form {
    margin: 0;
}

.portal-shell .portal-main {
    flex: 1;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 36px 24px;
}

.portal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 24px 28px;
    font-size: 9px;
    letter-spacing: 0.5px;
    color: var(--muted);
}

.portal-quick-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

@media (max-width: 1050px) {
    .portal-header {
        gap: 18px;
    }

    .portal-header-right {
        gap: 16px;
    }

    .portal-nav {
        gap: 14px;
    }

    .portal-user {
        display: none;
    }
}

@media (max-width: 760px) {
    .portal-header {
        padding: 20px;
    }

    .portal-header-right {
        width: 100%;
        justify-content: space-between;
        margin-left: 0;
    }

    .portal-nav {
        flex: 1;
    }
}

@media (max-width: 640px) {
    .portal-header {
        flex-wrap: nowrap;
        gap: 10px;
        padding: 20px 18px;
    }

    .portal-header .brand {
        gap: 10px;
    }

    .portal-header .brand strong {
        font-size: 24px;
    }

    .portal-header .brand-sub {
        font-size: 8px;
        letter-spacing: 1.3px;
        padding-left: 10px;
    }

    .portal-header-right {
        width: auto;
        margin-left: auto;
        flex-wrap: nowrap;
        gap: 12px;
    }

    .portal-nav {
        display: none;
    }

    .portal-header .theme-button {
        padding: 6px 8px;
        font-size: 10px;
        gap: 6px;
    }

    .portal-header .text-button {
        font-size: 11px;
    }

    .portal-shell .portal-main {
        padding: 28px 18px;
    }

    .portal-footer {
        padding: 20px 18px 95px;
        font-size: 8px;
    }

    .portal-quick-actions {
        gap: 9px;
    }
}