cso-blade-stack .blade-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    overscroll-behavior: contain;
}

cso-blade-stack .blade-backdrop {
    position: absolute;
    inset: 0;
    pointer-events: auto;
    background: rgba(15, 23, 42, 0.3);
}

cso-blade-stack .blade-stack {
    position: absolute;
    inset: 0;
    pointer-events: auto;
    overscroll-behavior: contain;
}

cso-blade-stack .blade-stack.has-overlap {
    --blade-overlay-width: 0px;
}

cso-blade-stack .blade-stack.has-overlap::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: var(--blade-overlay-width, 0px);
    height: 100%;
    background: #ffffff;
    pointer-events: none;
    z-index: 0;
}

cso-blade-stack .blade {
    position: absolute;
    top: 0;
    height: 100%;
    min-height: 0;
    background: #ffffff;
    border-left: 1px solid var(--cso-border, #e2e8f0);
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
    display: flex;
    flex-direction: column;
    transition: transform var(--blade-transition-duration, 0.35s) ease-out;
    overflow: hidden;
    overscroll-behavior: contain;
}

cso-blade-stack .blade.is-entering {
    animation: blade-enter var(--blade-transition-duration, 0.35s) ease-out both;
}

cso-blade-stack .blade.is-peek {
    clip-path: inset(0 calc(100% - var(--blade-peek, 56px)) 0 0);
}

cso-blade-stack .blade-spine {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 56px;
    border-right: 1px solid var(--cso-border, #e2e8f0);
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    padding: 0;
    margin: 0;
    cursor: pointer;
    pointer-events: auto;
    box-shadow: 1px 0 8px rgba(15, 23, 42, 0.08);
}

cso-blade-stack .blade-spine:hover {
    background: #ffffff;
}

cso-blade-stack .blade-spine-label {
    display: inline-block;
    transform: rotate(-90deg);
    font-size: 0.75rem;
    color: #475569;
    letter-spacing: 0.02em;
    text-transform: none;
    white-space: nowrap;
}

cso-blade-stack .blade-spine-title {
    font-weight: 700;
}

cso-blade-stack .blade-spine-detail {
    font-weight: 400;
}

cso-blade-stack .blade-main {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    position: relative;
    z-index: 1;
}

cso-blade-stack .blade:not(.is-top) .blade-main {
    opacity: 0;
    pointer-events: none;
}

cso-blade-stack .blade-cap {
    height: 4px;
    background: var(--cso-teal-600, #008CBA);
}

cso-blade-stack .blade-header {
    display: block;
    padding: 16px 24px;
    background: linear-gradient(135deg, var(--cso-teal-50, #EBF6F9), #ffffff 70%);
    border-bottom: 1px solid var(--cso-border, #e2e8f0);
    min-height: 84px;
}

cso-blade-stack .blade-heading {
    display: grid;
    gap: 4px;
    min-width: 0;
}

cso-blade-stack .blade-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 32px;
}

cso-blade-stack .blade-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    min-width: 0;
    flex: 1 1 auto;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

cso-blade-stack .blade-subtitle {
    margin: 0;
    font-size: 0.85rem;
    color: #64748b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

cso-blade-stack .blade-meta {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex: 0 0 auto;
    min-width: 0;
}

cso-blade-stack .blade-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.83rem;
    font-weight: 600;
    color: #475569;
    max-width: 320px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

cso-blade-stack .blade-status[data-kind="saving"],
cso-blade-stack .blade-status[data-kind="loading"] {
    color: #0f766e;
}

cso-blade-stack .blade-status-spinner {
    width: 12px;
    height: 12px;
    border-radius: 999px;
    border: 2px solid rgba(15, 118, 110, 0.28);
    border-top-color: #0f766e;
    animation: blade-status-spin 0.8s linear infinite;
    flex: 0 0 12px;
}

cso-blade-stack .blade-actions {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

cso-blade-stack .blade-close {
    border-radius: 50%;
    width: 20px;
    height: 20px;
    border: 1px solid rgba(148, 163, 184, 0.45);
    background: #ffffff;
    padding: 0;
    line-height: 1;
    font-size: 0.84rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-family: Arial, sans-serif;
}

cso-blade-stack .blade-close:hover {
    background: #f8fafc;
}

cso-blade-stack .blade-close:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

cso-blade-stack .blade-body {
    padding: 24px;
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    position: relative;
}

cso-blade-stack .blade-body.is-scrollable {
    overflow: auto;
    overscroll-behavior: contain;
}

cso-blade-stack .blade-body.is-fixed {
    overflow: hidden;
}

cso-blade-stack .blade-body-content {
    display: flex;
    flex: 1 1 auto;
    min-height: 0;
    flex-direction: column;
}

cso-blade-stack .blade-body.is-interaction-locked .blade-body-content {
    user-select: none;
}

cso-blade-stack .blade-interaction-lock {
    position: absolute;
    inset: 0;
    z-index: 8;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(248, 250, 252, 0.78);
    backdrop-filter: blur(1px);
    pointer-events: auto;
}

cso-blade-stack .blade-interaction-lock-panel {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    max-width: min(100%, 420px);
    padding: 12px 16px;
    border: 1px solid rgba(15, 118, 110, 0.22);
    border-radius: 8px;
    background: #ffffff;
    color: #134e4a;
    box-shadow: 0 14px 35px rgba(15, 23, 42, 0.14);
    font-size: 0.92rem;
    font-weight: 600;
    text-align: left;
}

cso-blade-stack .blade-interaction-lock-spinner {
    width: 16px;
    height: 16px;
    border-radius: 999px;
    border: 2px solid rgba(15, 118, 110, 0.28);
    border-top-color: #0f766e;
    animation: blade-status-spin 0.8s linear infinite;
    flex: 0 0 16px;
}

cso-blade-stack .blade-resize-handle {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 12px;
    cursor: col-resize;
    z-index: 12;
    touch-action: none;
    user-select: none;
}

cso-blade-stack .blade-resize-handle::after {
    content: "";
    position: absolute;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 36px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.8);
}

cso-blade-stack .blade-resize-handle:hover::after,
cso-blade-stack .blade-resize-handle:focus-visible::after {
    background: var(--cso-teal-600, #008CBA);
}

@keyframes blade-status-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes blade-enter {
    from {
        transform: translateX(var(--blade-enter-offset, 720px));
    }
    to {
        transform: translateX(0);
    }
}

@media (max-width: 640px) {
    cso-blade-stack .blade-spine {
        display: none;
    }
}