.controller-overview-card {
    padding: clamp(1.1rem, 3vw, 1.7rem);
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.92);
}

.controller-overview-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.controller-overview-heading h3 {
    margin: 0;
}

.controller-metric-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.controller-metric {
    display: grid;
    gap: 0.35rem;
    min-height: 6rem;
    padding: 0.9rem;
    border-radius: 0.8rem;
    background: rgba(248, 250, 252, 0.96);
}

.controller-metric span {
    color: var(--muted, #667085);
    font-size: 0.78rem;
    font-weight: 700;
}

.controller-metric strong {
    align-self: end;
    font-size: clamp(1.55rem, 4vw, 2.25rem);
    line-height: 1;
}

.controller-health-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    padding: 0.85rem;
    border-radius: 0.8rem;
    background: rgba(248, 250, 252, 0.96);
}

.controller-health-row div {
    display: grid;
    gap: 0.15rem;
}

.controller-health-row small {
    color: var(--muted, #667085);
}

.controller-health-indicator {
    width: 0.8rem;
    height: 0.8rem;
    flex: 0 0 auto;
    border-radius: 999px;
    background: #94a3b8;
    box-shadow: 0 0 0 0.3rem rgba(148, 163, 184, 0.16);
}

.controller-health-indicator.ok {
    background: #16a34a;
    box-shadow: 0 0 0 0.3rem rgba(22, 163, 74, 0.14);
}

.controller-health-indicator.error {
    background: #dc2626;
    box-shadow: 0 0 0 0.3rem rgba(220, 38, 38, 0.14);
}

@media (max-width: 760px) {
    .controller-metric-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 460px) {
    .controller-metric-grid {
        grid-template-columns: 1fr;
    }
}


.controller-metric-button {
    width: 100%;
    border: 0;
    color: inherit;
    text-align: left;
    cursor: pointer;
    transition:
        transform 120ms ease,
        box-shadow 120ms ease,
        background 120ms ease;
}

.controller-metric-button:not(:disabled):hover {
    transform: translateY(-1px);
    background: #ffffff;
    box-shadow: 0 0.35rem 1rem rgba(15, 23, 42, 0.08);
}

.controller-metric-button:not(:disabled):focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.28);
    outline-offset: 2px;
}

.controller-metric-button:disabled {
    cursor: default;
    opacity: 0.7;
}

.controller-detail-panel {
    margin-top: 1rem;
    padding: 1rem;
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 0.9rem;
    background: rgba(248, 250, 252, 0.96);
}

.controller-detail-panel[hidden] {
    display: none;
}

.controller-detail-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.controller-detail-heading h4 {
    margin: 0;
}

.controller-detail-content {
    display: grid;
    gap: 0.45rem;
}

.controller-detail-row {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 0.75rem;
    align-items: center;
    padding: 0.75rem;
    border-radius: 0.65rem;
    background: #ffffff;
}

.controller-detail-cell {
    min-width: 0;
    overflow-wrap: anywhere;
}

.controller-agent-identity {
    display: grid;
    gap: 0.15rem;
}

.controller-agent-identity small {
    color: var(--muted, #667085);
}

.controller-state-available {
    color: #15803d;
    font-weight: 700;
}

.controller-state-paused {
    color: #a16207;
    font-weight: 700;
}

.controller-state-in_call {
    color: #1d4ed8;
    font-weight: 700;
}

.controller-state-unavailable,
.controller-state-unknown {
    color: #64748b;
    font-weight: 700;
}

.controller-detail-empty {
    margin: 0;
    padding: 0.85rem;
    color: var(--muted, #667085);
    background: #ffffff;
    border-radius: 0.65rem;
}

@media (max-width: 650px) {
    .controller-detail-row {
        grid-template-columns: 1fr;
        gap: 0.35rem;
    }
}


.controller-detail-toolbar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
}

.controller-detail-back {
    border: 0;
    padding: 0.45rem 0;
    color: #1d4ed8;
    background: transparent;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.controller-detail-back[hidden] {
    visibility: hidden;
}

.controller-detail-breadcrumb {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 0.35rem;
    color: var(--muted, #667085);
    font-size: 0.78rem;
    overflow: hidden;
}

.controller-breadcrumb-item {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.controller-breadcrumb-separator {
    flex: 0 0 auto;
}

.controller-agent-card-grid,
.controller-call-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.controller-agent-card,
.controller-call-card,
.controller-object-card {
    display: grid;
    gap: 0.9rem;
    padding: 1rem;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 0.8rem;
    background: #ffffff;
}

.controller-agent-card-header,
.controller-object-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}

.controller-agent-card-identity,
.controller-object-identity {
    display: grid;
    min-width: 0;
    gap: 0.15rem;
}

.controller-agent-card-identity strong,
.controller-object-identity strong {
    overflow-wrap: anywhere;
    font-size: 1.05rem;
}

.controller-agent-card-identity small,
.controller-object-identity small {
    color: var(--muted, #667085);
}

.controller-agent-card-state,
.controller-object-state {
    flex: 0 0 auto;
    padding: 0.35rem 0.55rem;
    border-radius: 999px;
    background: rgba(100, 116, 139, 0.1);
    font-size: 0.76rem;
    font-weight: 800;
}

.controller-agent-card-summary,
.controller-object-facts,
.controller-call-card {
    display: grid;
    gap: 0.5rem;
}

.controller-object-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.controller-object-fact {
    display: grid;
    gap: 0.1rem;
    min-width: 0;
}

.controller-object-fact span {
    color: var(--muted, #667085);
    font-size: 0.72rem;
    font-weight: 700;
}

.controller-object-fact strong {
    min-width: 0;
    overflow-wrap: anywhere;
    font-size: 0.9rem;
}

.controller-agent-card-actions,
.controller-object-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.controller-primary-button,
.controller-secondary-button {
    min-height: 2.45rem;
    border-radius: 0.65rem;
    padding: 0.55rem 0.8rem;
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}

.controller-primary-button {
    border: 1px solid #1d4ed8;
    color: #ffffff;
    background: #1d4ed8;
}

.controller-secondary-button {
    border: 1px solid rgba(15, 23, 42, 0.16);
    color: #0f172a;
    background: #ffffff;
}

.controller-primary-button:hover,
.controller-secondary-button:hover {
    filter: brightness(0.97);
}

.controller-object-note {
    margin: 0;
    padding: 0.75rem;
    border-radius: 0.65rem;
    color: var(--muted, #667085);
    background: rgba(248, 250, 252, 0.96);
    font-size: 0.82rem;
    line-height: 1.45;
}

@media (max-width: 760px) {
    .controller-agent-card-grid,
    .controller-call-card-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .controller-detail-toolbar {
        grid-template-columns: 1fr auto;
    }

    .controller-detail-back {
        grid-column: 1;
        grid-row: 1;
        justify-self: start;
    }

    .controller-detail-breadcrumb {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .controller-detail-toolbar > .icon-button {
        grid-column: 2;
        grid-row: 1;
    }

    .controller-object-facts {
        grid-template-columns: 1fr;
    }

    .controller-agent-card-header,
    .controller-object-header {
        align-items: stretch;
        flex-direction: column;
    }

    .controller-agent-card-state,
    .controller-object-state {
        align-self: flex-start;
    }
}


.controller-navigator {
    display: grid;
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: 1rem;
    align-items: start;
}

.controller-sidebar {
    position: sticky;
    top: 1rem;
    padding: 1rem;
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.94);
}

.controller-nav-list {
    display: grid;
    gap: 0.4rem;
    margin-top: 0.75rem;
}

.controller-nav-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    width: 100%;
    min-height: 2.8rem;
    border: 0;
    border-radius: 0.7rem;
    padding: 0.65rem 0.75rem;
    color: #334155;
    background: transparent;
    font: inherit;
    font-weight: 720;
    text-align: left;
    cursor: pointer;
}

.controller-nav-button:hover {
    background: rgba(241, 245, 249, 0.94);
}

.controller-nav-button.active {
    color: #1d4ed8;
    background: rgba(37, 99, 235, 0.09);
}

.controller-nav-button strong {
    min-width: 1.8rem;
    border-radius: 999px;
    padding: 0.15rem 0.4rem;
    background: rgba(148, 163, 184, 0.14);
    text-align: center;
    font-size: 0.75rem;
}

.controller-workspace {
    min-width: 0;
}

.controller-section {
    min-width: 0;
}

.controller-section[hidden] {
    display: none;
}

.controller-section-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.controller-section-heading h3 {
    margin: 0;
}

.controller-section-intro {
    margin: 0 0 1rem;
    color: var(--muted, #667085);
    line-height: 1.5;
}

.controller-source-state {
    padding: 0.35rem 0.55rem;
    border-radius: 999px;
    color: #15803d;
    background: rgba(22, 163, 74, 0.1);
    font-size: 0.75rem;
    font-weight: 800;
}

.controller-source-state.error {
    color: #b91c1c;
    background: rgba(220, 38, 38, 0.1);
}

.controller-device-grid,
.controller-system-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.controller-device-card,
.controller-system-card {
    display: grid;
    gap: 0.75rem;
    padding: 1rem;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 0.8rem;
    background: #ffffff;
}

.controller-system-card span,
.controller-system-card small {
    color: var(--muted, #667085);
}

.controller-system-card strong {
    font-size: 1.25rem;
}

.controller-activity-timeline {
    display: grid;
    gap: 0.4rem;
}

.controller-activity-row {
    display: grid;
    grid-template-columns: 5rem minmax(12rem, 1fr) minmax(10rem, 1fr);
    gap: 0.75rem;
    align-items: center;
    padding: 0.75rem;
    border-radius: 0.65rem;
    background: #ffffff;
}

.controller-activity-row time {
    color: #475569;
    font-variant-numeric: tabular-nums;
    font-weight: 750;
}

.controller-activity-row span {
    color: var(--muted, #667085);
    overflow-wrap: anywhere;
}

@media (max-width: 1000px) {
    .controller-navigator {
        grid-template-columns: 1fr;
    }

    .controller-sidebar {
        position: static;
    }

    .controller-nav-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .controller-device-grid,
    .controller-system-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 700px) {
    .controller-nav-list,
    .controller-device-grid,
    .controller-system-grid {
        grid-template-columns: 1fr;
    }

    .controller-activity-row {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }
}


.controller-assignment-warning {
    margin: 0;
    padding: 0.7rem 0.8rem;
    border: 1px solid rgba(217, 119, 6, 0.22);
    border-radius: 0.65rem;
    color: #92400e;
    background: rgba(245, 158, 11, 0.1);
    font-size: 0.8rem;
    line-height: 1.4;
}


.controller-clickable-object {
    cursor: pointer;
    transition:
        transform 120ms ease,
        border-color 120ms ease,
        box-shadow 120ms ease;
}

.controller-clickable-object:hover {
    transform: translateY(-1px);
    border-color: rgba(37, 99, 235, 0.28);
    box-shadow: 0 0.45rem 1.1rem rgba(15, 23, 42, 0.08);
}

.controller-clickable-object:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.3);
    outline-offset: 2px;
}

.controller-object-link strong {
    text-decoration: underline;
    text-decoration-color: rgba(37, 99, 235, 0.28);
    text-decoration-thickness: 0.09em;
    text-underline-offset: 0.18em;
}

.controller-clickable-object:hover .controller-object-link strong {
    color: #1d4ed8;
    text-decoration-color: currentColor;
}

.controller-object-fact-link {
    border-radius: 0.45rem;
    padding: 0.25rem;
    margin: -0.25rem;
    cursor: pointer;
}

.controller-object-fact-link:hover {
    background: rgba(37, 99, 235, 0.08);
}

.controller-object-fact-link strong {
    color: #1d4ed8;
    text-decoration: underline;
    text-underline-offset: 0.15em;
}

.controller-object-fact-link:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.28);
    outline-offset: 1px;
}


.controller-activity-row {
    position: relative;
}

.controller-activity-row::after {
    content: "#" attr(data-activity-id);
    justify-self: end;
    color: rgba(100, 116, 139, 0.55);
    font-size: 0.68rem;
    font-variant-numeric: tabular-nums;
}

@media (max-width: 700px) {
    .controller-activity-row::after {
        justify-self: start;
    }
}


.controller-system-warning {
    border-color: rgba(217, 119, 6, 0.28);
    background: rgba(245, 158, 11, 0.08);
}

.controller-system-warning strong {
    color: #92400e;
}


.controller-activity-day {
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 0.8rem;
    background: rgba(248, 250, 252, 0.92);
    overflow: hidden;
}

.controller-activity-day-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1rem;
    cursor: pointer;
    list-style: none;
}

.controller-activity-day-summary::-webkit-details-marker {
    display: none;
}

.controller-activity-day-summary::before {
    content: "▶";
    color: #64748b;
    font-size: 0.72rem;
    transition: transform 120ms ease;
}

.controller-activity-day[open]
.controller-activity-day-summary::before {
    transform: rotate(90deg);
}

.controller-activity-day-summary strong {
    flex: 1;
    text-transform: capitalize;
}

.controller-activity-day-summary span {
    color: var(--muted, #667085);
    font-size: 0.78rem;
    font-weight: 700;
}

.controller-activity-day-rows {
    display: grid;
    gap: 0.4rem;
    padding: 0 0.5rem 0.5rem;
}

.controller-activity-timestamp {
    display: grid;
    gap: 0.05rem;
}

.controller-activity-timestamp time {
    color: #475569;
    font-variant-numeric: tabular-nums;
    font-weight: 750;
}

.controller-activity-timestamp small {
    color: #94a3b8;
    font-size: 0.68rem;
    font-variant-numeric: tabular-nums;
}


.controller-state-stale {
    color: #b45309;
}


.controller-device-card .controller-object-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.controller-device-card .controller-object-fact strong {
    font-size: 0.84rem;
}

@media (max-width: 520px) {
    .controller-device-card .controller-object-facts {
        grid-template-columns: 1fr;
    }
}


/* M9-C03 device-card layout hotfix */
.controller-device-grid {
    grid-template-columns:
        repeat(auto-fit, minmax(min(100%, 23rem), 1fr));
}

.controller-device-card {
    min-width: 0;
    align-content: start;
}

.controller-device-card-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.7rem;
    min-width: 0;
}

.controller-device-card-identity {
    display: grid;
    gap: 0.2rem;
    min-width: 0;
}

.controller-device-card-identity strong {
    font-size: 1.35rem;
    line-height: 1.15;
    overflow-wrap: normal;
    word-break: normal;
}

.controller-device-card-identity small {
    color: var(--muted, #667085);
    font-size: 1rem;
    line-height: 1.3;
    overflow-wrap: anywhere;
}

.controller-device-queue-badge {
    justify-self: start;
    max-width: 100%;
    border-radius: 999px;
    padding: 0.38rem 0.7rem;
    font-size: 0.78rem;
    font-weight: 800;
    line-height: 1.25;
    white-space: normal;
    text-align: left;
    overflow-wrap: anywhere;
}

.controller-device-queue-badge.is-active {
    color: #166534;
    background: rgba(22, 163, 74, 0.12);
}

.controller-device-queue-badge.is-inactive {
    color: #475569;
    background: rgba(100, 116, 139, 0.1);
}

.controller-device-card .controller-object-facts {
    grid-template-columns:
        repeat(2, minmax(8.5rem, 1fr));
    column-gap: 1rem;
    row-gap: 0.8rem;
}

.controller-device-card .controller-object-fact {
    min-width: 0;
}

.controller-device-card .controller-object-fact strong {
    line-height: 1.25;
    overflow-wrap: anywhere;
    word-break: normal;
    hyphens: auto;
}

@media (max-width: 520px) {
    .controller-device-card .controller-object-facts {
        grid-template-columns: 1fr;
    }
}


/* M9-C03 operational device-health flags */
.controller-device-health-flag {
    justify-self: start;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    max-width: 100%;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 800;
    line-height: 1.25;
}

.controller-device-health-flag.is-ok {
    width: 0.78rem;
    height: 0.78rem;
    padding: 0;
    background: #16a34a;
    box-shadow: 0 0 0 0.3rem rgba(22, 163, 74, 0.12);
}

.controller-device-health-flag.is-warning,
.controller-device-health-flag.is-critical {
    padding: 0.38rem 0.7rem;
    white-space: normal;
    text-align: left;
    overflow-wrap: anywhere;
}

.controller-device-health-flag.is-warning {
    color: #92400e;
    background: rgba(245, 158, 11, 0.14);
}

.controller-device-health-flag.is-critical {
    color: #b91c1c;
    background: rgba(220, 38, 38, 0.11);
}

.controller-device-health-flag.is-warning::before,
.controller-device-health-flag.is-critical::before {
    content: "";
    flex: 0 0 auto;
    width: 0.58rem;
    height: 0.58rem;
    border-radius: 50%;
}

.controller-device-health-flag.is-warning::before {
    background: #d97706;
}

.controller-device-health-flag.is-critical::before {
    background: #dc2626;
}

.controller-health-ok {
    color: #15803d;
}

.controller-health-warning {
    color: #b45309;
}

.controller-health-critical {
    color: #dc2626;
}


/* M9-C03 equal-height device cards */
.controller-device-grid {
    align-items: stretch;
    grid-auto-rows: 1fr;
}

.controller-device-card {
    height: 100%;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

.controller-device-card .controller-object-facts {
    align-content: start;
}

.controller-device-card > .controller-secondary-button {
    align-self: end;
    width: 100%;
    margin-top: 1rem;
}


/* M9-C03 canonical controller state */
.controller-device-card[data-controller-action],
.controller-agent-card[data-controller-action] {
    cursor: pointer;
}

.controller-device-health-flag.is-critical {
    color: #b91c1c;
    background: rgba(220, 38, 38, 0.11);
}


/* M9-C04.1 shared detail panel */
#controller-workspace > .controller-detail-panel {
    margin-top: 1rem;
}