.cm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 23, 0.48);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: 1200;
}

.cm-menu {
    position: fixed;
    inset: 0;
    z-index: 1210;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    --cm-top-offset: max(0.35rem, calc(var(--pcb-topbar-h, 0px) - 0.55rem));
    padding: var(--cm-top-offset) 0.8rem 0.8rem;
    overflow-y: auto;
    pointer-events: none;
}

.cm-shell {
    width: min(1360px, 98vw);
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 28px 70px -42px rgba(15, 23, 42, 0.6);
    overflow: hidden;
    max-height: calc(100vh - var(--cm-top-offset) - 0.8rem);
    display: flex;
    flex-direction: column;
    pointer-events: auto;
    transform: none;
}

.dark .cm-shell {
    border-color: rgba(71, 85, 105, 0.65);
    background: rgba(15, 23, 42, 0.94);
    box-shadow: 0 28px 70px -42px rgba(2, 6, 23, 0.9);
}

.cm-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.cm-heading {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 900;
    color: #0f172a;
}

.dark .cm-heading {
    color: #e2e8f0;
}

.cm-close-btn {
    width: 2rem;
    height: 2rem;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 0.6rem;
    background: rgba(255, 255, 255, 0.8);
    color: #334155;
    cursor: pointer;
}

.dark .cm-close-btn {
    background: rgba(15, 23, 42, 0.75);
    color: #cbd5e1;
    border-color: rgba(71, 85, 105, 0.65);
}

.cm-wrap {
    display: grid;
    grid-template-columns: 280px 1fr;
    height: min(82vh, 860px);
    max-height: calc(100vh - var(--cm-top-offset) - 4rem);
}

.cm-left {
    max-height: 100%;
    overflow: auto;
    padding: 0.75rem;
    border-inline-end: 1px solid rgba(148, 163, 184, 0.22);
    background: rgba(248, 250, 252, 0.8);
}

.dark .cm-left {
    border-inline-end-color: rgba(71, 85, 105, 0.48);
    background: rgba(2, 6, 23, 0.45);
}

.cm-item {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    border: 1px solid transparent;
    border-radius: 0.8rem;
    background: transparent;
    color: #334155;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.7rem 0.75rem;
    text-align: start;
    cursor: pointer;
    transition: all 180ms ease;
}

.cm-item + .cm-item {
    margin-top: 0.45rem;
}

.cm-item:hover {
    border-color: rgba(56, 189, 248, 0.45);
    background: rgba(240, 249, 255, 0.85);
    color: #0369a1;
}

.cm-item.is-active {
    border-color: rgba(14, 165, 233, 0.6);
    background: rgba(224, 242, 254, 0.9);
    color: #075985;
}

.dark .cm-item {
    color: #cbd5e1;
}

.dark .cm-item:hover {
    border-color: rgba(56, 189, 248, 0.45);
    background: rgba(8, 47, 73, 0.5);
    color: #bae6fd;
}

.dark .cm-item.is-active {
    border-color: rgba(56, 189, 248, 0.65);
    background: rgba(7, 89, 133, 0.35);
    color: #e0f2fe;
}

.cm-item-count {
    min-width: 1.75rem;
    text-align: center;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.15rem 0.4rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.08);
    color: #334155;
}

.dark .cm-item-count {
    background: rgba(148, 163, 184, 0.2);
    color: #e2e8f0;
}

.cm-right {
    position: relative;
    overflow: auto;
    padding: 0.95rem;
}

.cm-panel {
    display: none;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 200ms ease, transform 200ms ease;
}

.cm-panel.is-active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.cm-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.8rem;
}

.cm-panel-title {
    font-size: 0.95rem;
    font-weight: 900;
    color: #0f172a;
    text-decoration: none;
}

.dark .cm-panel-title {
    color: #f1f5f9;
}

.cm-panel-meta {
    font-size: 0.72rem;
    font-weight: 700;
    color: #64748b;
}

.dark .cm-panel-meta {
    color: #94a3b8;
}

.cm-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.cm-card {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 0.9rem;
    padding: 0.55rem;
    background: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: box-shadow 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.cm-card:hover {
    transform: translateY(-2px);
    border-color: rgba(56, 189, 248, 0.5);
    box-shadow: 0 16px 30px -22px rgba(14, 116, 144, 0.55);
}

.dark .cm-card {
    border-color: rgba(71, 85, 105, 0.6);
    background: rgba(15, 23, 42, 0.72);
}

.dark .cm-card:hover {
    border-color: rgba(56, 189, 248, 0.65);
    box-shadow: 0 16px 30px -22px rgba(3, 105, 161, 0.7);
}

.cm-thumb {
    width: 52px;
    height: 52px;
    border-radius: 0.75rem;
    object-fit: cover;
    background: rgba(148, 163, 184, 0.16);
    flex-shrink: 0;
}

.cm-meta {
    min-width: 0;
}

.cm-title {
    font-size: 0.8rem;
    font-weight: 800;
    color: #0f172a;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cm-sub {
    font-size: 0.68rem;
    margin-top: 0.2rem;
    color: #64748b;
}

.dark .cm-title {
    color: #f8fafc;
}

.dark .cm-sub {
    color: #94a3b8;
}

.cm-empty {
    padding: 1rem;
    font-size: 0.85rem;
    color: #64748b;
}

.dark .cm-empty {
    color: #94a3b8;
}

body.cm-open {
    overflow: hidden;
}

[dir="rtl"] .cm-item {
    text-align: right;
}

@media (max-width: 992px) {
    .cm-menu {
        align-items: flex-start;
        --cm-top-offset: max(0.2rem, calc(var(--pcb-topbar-h, 0px) - 0.4rem));
        padding: var(--cm-top-offset) 0.45rem 0.45rem;
    }

    .cm-shell {
        width: 100%;
        border-radius: 1rem;
        max-height: calc(100vh - var(--cm-top-offset) - 0.45rem);
        transform: none;
    }

    .cm-wrap {
        grid-template-columns: 1fr;
        height: auto;
        max-height: calc(100vh - var(--cm-top-offset) - 7.2rem);
    }

    .cm-left {
        max-height: none;
        overflow-x: auto;
        overflow-y: hidden;
        display: flex;
        gap: 0.45rem;
        border-inline-end: 0;
        border-bottom: 1px solid rgba(148, 163, 184, 0.25);
    }

    .cm-item {
        width: auto;
        min-width: max-content;
        margin-top: 0;
        padding-inline: 0.8rem;
    }

    .cm-item + .cm-item {
        margin-top: 0;
    }

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

@media (max-width: 640px) {
    .cm-grid {
        grid-template-columns: 1fr;
    }
}