.network-visual-shell {
    min-height: 12rem;
}

.network-visual-card {
    overflow: hidden;
    padding: clamp(.9rem, 2.5vw, 1.4rem);
    border: 1px solid #bfdbfe;
    border-radius: 1rem;
    background: linear-gradient(145deg, #f8fbff, #eef6ff);
}

.network-visual-card + .network-visual-card {
    margin-top: 1rem;
}

.network-visual-heading,
.network-visual-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    flex-wrap: wrap;
}

.network-visual-controls {
    padding: .8rem;
    border: 1px solid #dbeafe;
    border-radius: .75rem;
    background: #fff;
}

.network-prefix-value {
    min-width: 3.5rem;
    color: #1d4ed8;
    font: 700 1rem ui-monospace, SFMono-Regular, Menlo, monospace;
    text-align: right;
}

.network-address-bar,
.network-vlsm-map,
.network-dhcp-map {
    display: flex;
    min-height: 5.5rem;
    overflow: hidden;
    border: 2px solid #1e3a8a;
    border-radius: .75rem;
    background: #fff;
}

.network-segment {
    position: relative;
    display: flex;
    min-width: 0;
    align-items: center;
    justify-content: center;
    padding: .45rem .3rem;
    border: 0;
    border-right: 1px solid rgba(15, 23, 42, .28);
    color: #0f172a;
    font-size: .72rem;
    font-weight: 700;
    line-height: 1.25;
    text-align: center;
    overflow-wrap: anywhere;
}

.network-segment:last-child {
    border-right: 0;
}

.network-segment:focus-visible,
.network-hex-block:focus-visible,
.network-view-toggle:focus-visible {
    z-index: 2;
    outline: 3px solid #f59e0b;
    outline-offset: -3px;
}

.network-segment-network {
    background: repeating-linear-gradient(135deg, #cbd5e1 0 8px, #e2e8f0 8px 16px);
}

.network-segment-host,
.network-segment-free {
    background: #dcfce7;
}

.network-segment-broadcast {
    background: repeating-linear-gradient(45deg, #fecaca 0 8px, #fee2e2 8px 16px);
}

.network-segment-pool {
    background: #bfdbfe;
}

.network-segment-excluded {
    background: repeating-linear-gradient(135deg, #fde68a 0 7px, #fef3c7 7px 14px);
}

.network-segment-gateway {
    background: repeating-linear-gradient(45deg, #ddd6fe 0 7px, #ede9fe 7px 14px);
}

.network-segment-remaining {
    background: #f1f5f9;
}

.network-segment.is-highlighted,
.network-result-row-highlighted {
    box-shadow: inset 0 0 0 4px #f59e0b;
}

.network-legend {
    display: flex;
    gap: .45rem 1rem;
    flex-wrap: wrap;
    margin: .75rem 0 0;
    padding: 0;
    list-style: none;
    color: #475569;
    font-size: .8rem;
}

.network-legend-marker {
    display: inline-block;
    width: .85rem;
    height: .85rem;
    margin-right: .3rem;
    border: 1px solid #64748b;
    border-radius: .2rem;
    vertical-align: -.1rem;
}

.network-binary-grid {
    display: grid;
    grid-template-columns: repeat(8, minmax(1.1rem, 1fr));
    gap: .2rem;
}

.network-binary-bit {
    padding: .35rem .1rem;
    border: 1px solid #cbd5e1;
    border-radius: .3rem;
    background: #f8fafc;
    font: 700 .75rem ui-monospace, SFMono-Regular, Menlo, monospace;
    text-align: center;
}

.network-binary-bit.is-network {
    background: #dbeafe;
}

.network-binary-bit.is-host {
    background: #dcfce7;
}

.network-binary-bit.is-boundary {
    border-left: 4px solid #dc2626;
}

.network-octet-labels {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: .35rem;
    margin-top: .35rem;
    color: #64748b;
    font-size: .72rem;
    text-align: center;
}

.network-hex-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .5rem;
}

.network-hex-block {
    position: relative;
    overflow: hidden;
    padding: .8rem .25rem;
    border: 1px solid #93c5fd;
    border-radius: .55rem;
    background: linear-gradient(to right, #dbeafe 0 var(--network-percent, 0%), #dcfce7 var(--network-percent, 0%) 100%);
    font: 700 .85rem ui-monospace, SFMono-Regular, Menlo, monospace;
    text-align: center;
}

.network-hex-block.has-boundary::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--network-percent);
    width: 3px;
    background: #dc2626;
}

.network-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
    gap: .55rem;
}

.network-stat {
    padding: .65rem;
    border: 1px solid #dbeafe;
    border-radius: .65rem;
    background: #fff;
}

.network-stat span {
    display: block;
    color: #64748b;
    font-size: .72rem;
}

.network-stat strong {
    overflow-wrap: anywhere;
    color: #1e3a8a;
}

.network-allocation-tree {
    display: grid;
    gap: .45rem;
    padding: .75rem;
    border-left: 4px solid #2563eb;
    background: #fff;
}

.network-tree-node {
    margin-left: calc(var(--tree-depth, 0) * 1rem);
    padding: .45rem .65rem;
    border: 1px solid #cbd5e1;
    border-radius: .55rem;
    background: #f8fafc;
    font-size: .82rem;
}

.network-progress {
    height: 1.2rem;
}

.network-animation-controls {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
}

.network-comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .75rem;
}

.network-comparison-grid small {
    display: block;
    margin-top: .25rem;
    color: #475569;
    font-weight: 700;
}

.network-waterfall {
    min-width: 42rem;
}

.network-waterfall td:nth-child(n+3) {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.network-waterfall .is-gain td:nth-child(4)::before {
    content: "▲ ";
}

.network-waterfall .is-loss td:nth-child(4)::before {
    content: "▼ ";
}

.network-waterfall .is-gain td:nth-child(4) {
    color: #166534;
}

.network-waterfall .is-loss td:nth-child(4) {
    color: #991b1b;
}

.network-signal-gauge {
    position: relative;
    height: 2rem;
    overflow: hidden;
    border: 2px solid #1e3a8a;
    border-radius: 999px;
    background: repeating-linear-gradient(135deg, #e2e8f0 0 8px, #f8fafc 8px 16px);
}

.network-signal-fill {
    height: 100%;
    background: linear-gradient(90deg, #dc2626, #f59e0b 52%, #16a34a);
    transition: width .25s ease;
}

.network-signal-threshold {
    position: absolute;
    top: -4px;
    bottom: -4px;
    width: 4px;
    background: #0f172a;
}

.network-signal-threshold::after {
    content: "S";
    position: absolute;
    top: .3rem;
    left: .3rem;
    color: #0f172a;
    font-size: .72rem;
    font-weight: 800;
}

.network-visual-fallback {
    margin: 0;
    color: #475569;
}

.network-sr-summary {
    margin-top: .65rem;
    color: #475569;
    font-size: .82rem;
}

.network-vlsm-map.is-collapsed .network-segment:nth-child(n+9) {
    display: none;
}

@media (max-width: 575.98px) {
    .network-visual-shell {
        min-height: 10rem;
    }

    .network-visual-card {
        padding: .75rem;
    }

    .network-address-bar,
    .network-vlsm-map,
    .network-dhcp-map {
        min-height: 7rem;
    }

    .network-segment {
        font-size: .63rem;
        writing-mode: vertical-rl;
        text-orientation: mixed;
    }

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

    .network-binary-grid {
        grid-template-columns: repeat(8, minmax(.85rem, 1fr));
    }

    .network-comparison-grid {
        grid-template-columns: 1fr;
    }

    .network-waterfall {
        min-width: 36rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .network-visual-shell *,
    .network-visual-shell *::before,
    .network-visual-shell *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}