body {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: var(--color-surface);
    padding: 12px 20px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

    header h1 {
        margin: 0;
        font-size: 16px;
        font-weight: 600;
    }

    header nav a {
        color: var(--color-accent);
        text-decoration: none;
        margin-left: 16px;
        font-size: 14px;
    }

        header nav a:hover {
            text-decoration: underline;
        }

#toolbar {
    display: flex;
    gap: 8px;
    align-items: center;
}

#tabs {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    padding: 0 12px;
}

    #tabs .tab {
        border: none;
        background: transparent;
        padding: 10px 16px;
        font-size: 13px;
        font-weight: 500;
        color: var(--color-text-muted);
        border-bottom: 2px solid transparent;
        border-radius: 0;
        cursor: pointer;
    }

        #tabs .tab.active {
            color: var(--color-accent);
            border-bottom-color: var(--color-accent);
        }

main {
    flex: 1;
    display: flex;
    overflow: hidden;
}

#left-rail {
    width: 320px;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    flex-shrink: 0;
}

.row {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border-soft);
    cursor: pointer;
    font-size: 13px;
}

    .row:hover {
        background: #fafafa;
    }

    .row.selected {
        background: var(--color-accent-soft);
        border-left: 3px solid var(--color-accent);
        padding-left: 13px;
    }

    .row .id {
        font-family: var(--font-mono);
        font-size: 11px;
        color: var(--color-text-subtle);
        margin-bottom: 4px;
    }

    .row .preview {
        color: var(--color-text);
        line-height: 1.35;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .row .meta {
        margin-top: 6px;
        font-size: 11px;
        color: #999;
        display: flex;
        justify-content: space-between;
        gap: 8px;
        flex-wrap: wrap;
    }

.status {
    text-transform: uppercase;
    font-weight: 600;
    font-size: 10px;
    letter-spacing: 0.5px;
    padding: 1px 6px;
    border-radius: 3px;
}

.status-draft {
    color: #8a6d00;
    background: #fff5d9;
}

.status-submitted {
    color: #1d6f3a;
    background: #d8f1de;
}

#right-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#detail-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px;
    font-size: 12px;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    display: none;
}

#detail-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

#empty-hint, .empty {
    margin-top: 80px;
}

/* Messages (sessions tab detail) */
.msg {
    margin-bottom: 16px;
    max-width: 720px;
}

    .msg .role {
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        color: var(--color-text-subtle);
        margin-bottom: 4px;
        font-weight: 600;
    }

    .msg.assistant .role {
        color: var(--color-accent);
    }

    .msg .bubble {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: 10px;
        padding: 12px 14px;
        white-space: pre-wrap;
        line-height: 1.5;
        font-size: 14px;
    }

    .msg .ts {
        font-size: 11px;
        color: var(--color-text-faint);
        margin-top: 4px;
        font-family: var(--font-mono);
    }

/* Order detail */
.order-meta {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 13px;
    line-height: 1.8;
}

    .order-meta b {
        color: var(--color-text-muted);
        font-weight: 600;
        margin-right: 4px;
    }

table.lines {
    width: 100%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    border-collapse: separate;
    border-spacing: 0;
    font-size: 13px;
    overflow: hidden;
}

    table.lines th, table.lines td {
        padding: 10px 14px;
        border-bottom: 1px solid var(--color-border-soft);
        text-align: left;
    }

    table.lines th {
        background: #fafafa;
        font-weight: 600;
        color: var(--color-text-muted);
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

        table.lines td.num,
        table.lines th.num {
            text-align: right;
            font-variant-numeric: tabular-nums;
        }

    table.lines tfoot td {
        border-bottom: none;
        background: #fafafa;
    }