.network-page {
    --net-blue: #123f66;
    --net-ink: #1f2b35;
    --net-muted: #536775;
    --net-line: #d7e1e7;
    color: var(--net-ink);
    font-family: system-ui,-apple-system,"Segoe UI",sans-serif;
    line-height: 1.6;
    padding: 0 20px 34px 20px;
}

    .network-page [hidden] {
        display: none !important
    }

.network-header {
    max-width: 900px;
    padding-bottom: 15px;
}

    .network-header > a {
        color: var(--net-muted);
        text-decoration: none;
        font-size: .9rem
    }

.network-eyebrow {
    color: var(--net-blue);
    font-size: .73rem;
    letter-spacing: .14em;
    font-weight: 750;
    margin: 15px 0 10px
}

.network-header > p:last-child {
    color: var(--net-muted);
    font-size: 1.08rem;
    max-width: 780px
}

.network-tool-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 14px
}

    .network-tool-tabs a {
        display: inline-block;
        padding: 8px 14px;
        border: 1px solid var(--net-line);
        border-radius: 999px;
        color: var(--net-blue);
        font-size: .88rem;
        font-weight: 700;
        text-decoration: none;
        background: #fff
    }

        .network-tool-tabs a[aria-current="page"] {
            background: var(--net-blue);
            border-color: var(--net-blue);
            color: #fff
        }

.network-mode-tabs {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--net-line);
    padding-bottom: 13px;
    margin-bottom: 24px
}

    .network-mode-tabs button {
        width: auto;
        margin: 0;
        padding: 9px 18px;
        border: 1px solid var(--net-line);
        background: #fff;
        color: var(--net-blue);
        border-radius: 7px;
        font-weight: 700
    }

        .network-mode-tabs button.active {
            background: var(--net-blue);
            color: #fff;
            border-color: var(--net-blue)
        }

.network-layout {
    display: grid;
    grid-template-columns: minmax(0,.9fr) minmax(0,1.25fr);
    gap: 24px;
    align-items: start
}

.network-card, .network-guide {
    border: 1px solid var(--net-line);
    border-radius: 12px;
    padding: 25px;
    background: #f6f9fb;
    min-width: 0
}

    .network-card h2, .network-guide h2 {
        color: var(--net-blue)
    }

.network-page label {
    font-size: .85rem;
    font-weight: 600
}

.network-page input, .network-page select, .network-page textarea {
    font: inherit;
    box-sizing: border-box;
    width: 100%;
    border: 1px solid #aebfc9;
    background: #fff;
    padding: 10px;
    border-radius: 5px;
    color: var(--net-ink);
    margin: 3px 0 13px
}

.network-page textarea {
    resize: vertical
}

.network-page :is(input,select,textarea,button,a):focus-visible {
    outline: 3px solid #89b8df;
    outline-offset: 3px
}

.prefixed-input {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center
}

    .prefixed-input span {
        font-size: 1.2rem;
        padding: 0 10px 12px 0
    }

.network-actions {
    display: flex;
    gap: 10px
}

    .network-actions button, .network-button {
        display: inline-block;
        border: 0;
        border-radius: 6px;
        background: var(--net-blue);
        color: #fff;
        padding: 11px 18px;
        text-decoration: none;
        font-weight: 700
    }

    .network-actions .secondary {
        background: #fff;
        color: var(--net-blue);
        border: 1px solid #aebfc9
    }

.field-note, .network-status {
    font-size: .83rem;
    color: var(--net-muted)
}

    .network-status.error {
        color: #a12d2d
    }

.network-results {
    background: #fff;
    border-top: 4px solid var(--net-blue)
}

.network-summary h2 {
    font-size: 1.6rem;
    margin-top: 0
}

.network-facts {
    display: grid;
    grid-template-columns: minmax(140px,.7fr) 1fr;
    margin: 20px 0
}

    .network-facts dt, .network-facts dd {
        padding: 9px 10px;
        border-bottom: 1px solid #e5ebef;
        margin: 0
    }

    .network-facts dt {
        font-weight: 700;
        color: var(--net-blue)
    }

    .network-facts dd {
        overflow-wrap: anywhere
    }

.binary-display {
    font: 600 .88rem ui-monospace,monospace;
    background: #edf3f7;
    padding: 14px;
    border-radius: 6px;
    overflow-x: auto;
    white-space: nowrap
}

    .binary-display .network-bits {
        color: #0d5f34
    }

    .binary-display .host-bits {
        color: #a15713
    }

.ipv6-binary {
    white-space: normal;
    overflow-wrap: anywhere;
    line-height: 2
}

    .ipv6-binary .prefix-divider {
        display: inline-block;
        color: #a12d2d;
        font-size: 1.25em;
        padding: 0 3px
    }

.network-note {
    background: #edf6f0;
    border-left: 3px solid #428262;
    padding: 12px 14px;
    margin-top: 18px;
    color: #28583d
}

.subnet-list-card {
    margin-top: 24px;
    background: #fff
}

.network-table-wrap {
    overflow: auto
}

.network-table {
    border-collapse: collapse;
    width: 100%;
    font-size: .87rem;
    white-space: nowrap
}

    .network-table th, .network-table td {
        text-align: left;
        padding: 10px 12px;
        border-bottom: 1px solid var(--net-line)
    }

    .network-table th {
        background: #edf3f7;
        color: var(--net-blue);
        position: sticky;
        top: 0
    }

.network-guide {
    max-width: 970px;
    margin-top: 36px;
    background: #fff
}

    .network-guide section + section {
        margin-top: 28px
    }

    .network-guide p {
        color: var(--net-muted)
    }

    .network-guide details {
        border-bottom: 1px solid var(--net-line);
        padding: 14px 0
    }

    .network-guide summary {
        cursor: pointer;
        font-weight: 700;
        color: var(--net-blue)
    }

@media(max-width:800px) {
    .network-page.wrap {
        width: 100%;
        padding: 0 15px 25px
    }

    .network-layout {
        grid-template-columns: 1fr
    }

    .network-card, .network-guide {
        padding: 20px
    }

    .network-facts {
        grid-template-columns: 1fr
    }

        .network-facts dd {
            padding-top: 2px
        }

    .network-mode-tabs {
        position: sticky;
        top: 0;
        background: #fff;
        z-index: 2;
        padding-top: 6px
    }

        .network-mode-tabs button {
            flex: 1;
            padding: 9px 10px
        }

    .network-actions {
        flex-direction: column
    }

        .network-actions button {
            width: 100%
        }
}