.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.portal-app {
    background: var(--card);
    border: 1px solid var(--line);
    overflow: hidden;
}

.portal-chrome {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1.15rem;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
}

.portal-chrome-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.portal-chrome-dots {
    display: flex;
    gap: 0.35rem;
}

.portal-chrome-dots span {
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: var(--line);
}

.portal-url {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-soft);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.portal-user {
    font-size: 0.88rem;
    font-weight: 600;
    white-space: nowrap;
}

.portal-body {
    display: grid;
    grid-template-columns: 11.5rem minmax(0, 1fr);
    min-height: 32rem;
}

.portal-nav {
    border-right: 1px solid var(--line);
    padding: 0.75rem 0;
    background: var(--paper);
}

.portal-nav button {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.7rem 1.1rem;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--ink-soft);
    border: 0;
    background: none;
    border-left: 3px solid transparent;
}

.portal-nav button.is-on,
.portal-nav button:hover {
    color: var(--ink);
    background: var(--card);
}

.portal-nav button.is-on {
    border-left-color: var(--pink);
    color: var(--pink);
}

.portal-panel {
    display: none;
    padding: 1.25rem 1.35rem 1.5rem;
}

.portal-panel.is-on {
    display: block;
}

.portal-panel h3 {
    margin: 0 0 0.35rem;
    font-size: 1.15rem;
}

.portal-lead {
    margin: 0 0 1.15rem;
    color: var(--ink-soft);
    font-size: 0.92rem;
}

.ticket-row {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) auto;
    gap: 1rem;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--line);
}

.ticket-row:last-child {
    border-bottom: 0;
}

.ticket-row h4 {
    margin: 0 0 0.2rem;
    font-size: 1rem;
}

.ticket-row p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--ink-soft);
}

.ticket-row-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.ticket-row-actions .btn {
    padding: 0.45rem 0.8rem;
    font-size: 0.82rem;
}

.ticket-view {
    display: none;
    margin-top: 1.15rem;
}

.ticket-view.is-on {
    display: block;
}

.portal-toast {
    display: none;
    margin-top: 0.85rem;
    font-size: 0.88rem;
    font-weight: 600;
}

.portal-toast.is-on {
    display: block;
}

.tx-table {
    width: 100%;
    border-collapse: collapse;
}

.tx-table th {
    text-align: left;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-soft);
    font-weight: 600;
    padding: 0.55rem 0.75rem 0.55rem 0;
    border-bottom: 1px solid var(--ink);
}

.tx-table td {
    padding: 0.75rem 0.75rem 0.75rem 0;
    border-bottom: 1px solid var(--line);
    font-size: 0.92rem;
    vertical-align: baseline;
}

.tx-table td:last-child,
.tx-table th:last-child {
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-weight: 600;
}

.tx-out {
    color: #1f6b3a;
}

.chat {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 26rem;
}

.chat-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 0.85rem;
    margin-bottom: 0.85rem;
    border-bottom: 1px solid var(--line);
}

.chat-head strong {
    display: block;
}

.chat-head span {
    font-size: 0.82rem;
    color: var(--ink-soft);
}

.chat-log {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    overflow: auto;
    padding-bottom: 1rem;
    max-height: 18rem;
}

.bubble {
    max-width: 32rem;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: 4px;
    font-size: 0.92rem;
    line-height: 1.5;
}

.bubble p {
    margin: 0;
}

.bubble time {
    display: block;
    margin-top: 0.35rem;
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    color: var(--ink-soft);
}

.bubble.is-org {
    background: var(--paper);
}

.bubble.is-me {
    margin-left: auto;
    background: var(--card);
    border-left: 3px solid var(--pink);
}

.chat-compose {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.55rem;
    align-items: end;
    padding-top: 0.85rem;
    border-top: 1px solid var(--line);
}

.chat-compose textarea {
    min-height: 3.2rem;
    resize: vertical;
    padding: 0.65rem 0.75rem;
    font: inherit;
}

@media (max-width: 800px) {
    .portal-body {
        grid-template-columns: 1fr;
    }

    .portal-nav {
        display: flex;
        border-right: 0;
        border-bottom: 1px solid var(--line);
        padding: 0;
    }

    .portal-nav button {
        flex: 1;
        border-left: 0;
        border-bottom: 3px solid transparent;
        text-align: center;
        padding: 0.75rem 0.5rem;
    }

    .portal-nav button.is-on {
        border-left-color: transparent;
        border-bottom-color: var(--pink);
    }

    .ticket-row {
        grid-template-columns: 1fr;
    }
}