:root {
    --mb-bg: #07111f;
    --mb-panel: rgba(12, 24, 44, .9);
    --mb-panel-2: rgba(16, 34, 61, .92);
    --mb-line: rgba(148, 163, 184, .18);
    --mb-text: #e5eefc;
    --mb-muted: #9fb0ca;
    --mb-accent: #22c55e;
    --mb-blue: #38bdf8;
    --mb-orange: #f97316;
    --mb-red: #fb7185;
    --mb-yellow: #facc15;
}
* { box-sizing: border-box; }
body.lab-sandbox-page--multibank {
    margin: 0;
    color: var(--mb-text);
    font-family: Arial, sans-serif;
    background:
        radial-gradient(circle at 16% 8%, rgba(34, 197, 94, .14), transparent 28%),
        radial-gradient(circle at 82% 0%, rgba(56, 189, 248, .12), transparent 28%),
        linear-gradient(180deg, #07101d, #08111f 60%, #050b14);
}
button, input, select { font: inherit; }
.mb-demo-shell {
    width: min(1460px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 42px;
}
.mb-topbar {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: flex-start;
    margin-bottom: 22px;
}
.mb-back, .mb-eyebrow {
    display: inline-flex;
    margin: 0 0 10px;
    color: var(--mb-blue);
}
.mb-eyebrow {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
}
.mb-topbar h1 {
    margin: 0 0 14px;
    font-size: clamp(34px, 4vw, 58px);
    line-height: 1.02;
}
.mb-lead {
    max-width: 820px;
    margin: 0;
    color: var(--mb-muted);
    font-size: 18px;
}
.mb-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 12px;
}
.mb-btn {
    min-height: 44px;
    padding: 0 16px;
    border: 1px solid transparent;
    border-radius: 14px;
    color: var(--mb-text);
    background: rgba(15, 23, 42, .78);
    cursor: pointer;
}
.mb-btn--primary {
    background: linear-gradient(135deg, #16a34a, #22c55e);
    color: #fff;
}
.mb-btn--ghost {
    border-color: rgba(148, 163, 184, .22);
}
.mb-safe-note, .mb-panel, .mb-kpi-card {
    border: 1px solid var(--mb-line);
    border-radius: 22px;
    background: var(--mb-panel);
    box-shadow: 0 18px 45px rgba(0, 0, 0, .22);
}
.mb-safe-note {
    margin-bottom: 20px;
    padding: 16px 18px;
    color: var(--mb-muted);
}
.mb-kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}
.mb-kpi-card {
    padding: 18px;
}
.mb-kpi-card span {
    display: block;
    margin-bottom: 8px;
    color: var(--mb-muted);
    font-size: 13px;
}
.mb-kpi-card strong {
    display: block;
    font-size: 28px;
    line-height: 1.1;
}
.mb-kpi-card small {
    display: block;
    margin-top: 8px;
    color: var(--mb-muted);
}
.mb-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 390px;
    gap: 20px;
    align-items: start;
}
.mb-main, .mb-side {
    display: grid;
    gap: 20px;
    min-width: 0;
}
.mb-panel {
    min-width: 0;
    padding: 22px;
}
.mb-panel__head {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 18px;
}
.mb-panel__head h2 {
    margin: 0;
    font-size: 26px;
}
.mb-panel__head > span {
    color: var(--mb-muted);
}
.mb-account-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}
.mb-account-card {
    padding: 18px;
    border: 1px solid var(--mb-line);
    border-radius: 18px;
    background: rgba(8, 18, 34, .72);
    cursor: pointer;
}
.mb-account-card.active {
    border-color: rgba(34, 197, 94, .58);
    box-shadow: 0 0 0 1px rgba(34, 197, 94, .2) inset;
}
.mb-account-card__bank {
    color: var(--mb-muted);
    font-size: 13px;
}
.mb-account-card h3 {
    margin: 6px 0 12px;
    font-size: 20px;
}
.mb-account-card strong {
    display: block;
    font-size: 24px;
}
.mb-account-card small {
    display: block;
    margin-top: 8px;
    color: var(--mb-muted);
}
.mb-filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.mb-filter-tabs button {
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--mb-line);
    border-radius: 999px;
    color: var(--mb-muted);
    background: rgba(8, 18, 34, .72);
    cursor: pointer;
}
.mb-filter-tabs button.active {
    color: #fff;
    border-color: rgba(56, 189, 248, .45);
    background: rgba(56, 189, 248, .16);
}
.mb-table-wrap {
    overflow-x: auto;
}
.mb-table {
    width: 100%;
    border-collapse: collapse;
}
.mb-table th, .mb-table td {
    padding: 13px 10px;
    border-bottom: 1px solid var(--mb-line);
    text-align: left;
    vertical-align: top;
}
.mb-table th {
    color: var(--mb-muted);
    font-size: 13px;
}
.mb-row {
    cursor: pointer;
}
.mb-row.active {
    background: rgba(56, 189, 248, .08);
}
.mb-payment-name {
    display: block;
    font-weight: 700;
}
.mb-payment-purpose {
    display: block;
    margin-top: 5px;
    color: var(--mb-muted);
    font-size: 13px;
}
.mb-status {
    display: inline-flex;
    min-height: 28px;
    align-items: center;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}
.mb-status--matched { background: rgba(34, 197, 94, .15); color: #86efac; }
.mb-status--review { background: rgba(250, 204, 21, .15); color: #fde68a; }
.mb-status--unmatched { background: rgba(251, 113, 133, .15); color: #fecdd3; }
.mb-status--new { background: rgba(56, 189, 248, .15); color: #bae6fd; }
.mb-payment-card {
    display: grid;
    gap: 14px;
}
.mb-payment-card__box {
    padding: 16px;
    border: 1px solid var(--mb-line);
    border-radius: 18px;
    background: rgba(8, 18, 34, .72);
}
.mb-payment-card__box span {
    display: block;
    margin-bottom: 7px;
    color: var(--mb-muted);
    font-size: 13px;
}
.mb-payment-card__box strong {
    display: block;
}
.mb-match-select {
    width: 100%;
    min-height: 42px;
    padding: 0 12px;
    border: 1px solid var(--mb-line);
    border-radius: 12px;
    color: var(--mb-text);
    background: rgba(7, 16, 29, .86);
}
.mb-rules {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}
.mb-rules li {
    padding: 13px 14px;
    border: 1px solid var(--mb-line);
    border-radius: 14px;
    color: var(--mb-muted);
    background: rgba(8, 18, 34, .7);
}
.mb-events {
    display: grid;
    gap: 10px;
    max-height: 330px;
    overflow: auto;
}
.mb-event {
    padding: 13px 14px;
    border: 1px solid var(--mb-line);
    border-left: 3px solid var(--mb-blue);
    border-radius: 14px;
    color: var(--mb-muted);
    background: rgba(8, 18, 34, .72);
}
.mb-event strong {
    display: block;
    margin-bottom: 4px;
    color: var(--mb-text);
}
@media (max-width: 1180px) {
    .mb-layout { grid-template-columns: 1fr; }
    .mb-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .mb-side .mb-panel:first-child { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
    .mb-topbar, .mb-panel__head { flex-direction: column; align-items: stretch; }
    .mb-kpi-grid, .mb-account-grid, .mb-side { grid-template-columns: 1fr; }
    .mb-demo-shell { width: min(100%, calc(100% - 24px)); }
}