:root {
    --bg: #f4f5f7; --surface: #fff; --text: #1c1e21; --muted: #6b7280;
    --border: #e2e4e8; --primary: #2563eb; --primary-dark: #1d4ed8;
    --ok: #15803d; --ok-bg: #dcfce7; --error: #b91c1c; --error-bg: #fee2e2;
    --pending: #6b7280; --pending-bg: #eef0f2; --off: #92400e; --off-bg: #fef3c7;
    --radius: 8px;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #15171c; --surface: #1e2128; --text: #e5e7eb; --muted: #9aa1ac;
        --border: #2c303a; --primary: #60a5fa; --primary-dark: #93c5fd;
        --ok: #4ade80; --ok-bg: #103a1d; --error: #f87171; --error-bg: #3f1414;
        --pending: #9aa1ac; --pending-bg: #2a2d34; --off: #fbbf24; --off-bg: #3a2e10;
    }
}
* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0; background: var(--bg); color: var(--text); line-height: 1.4;
}
.container { max-width: 1180px; margin: 0 auto; padding: 0 1.25rem 3rem; }
a { color: var(--primary); }
nav {
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.25rem; position: sticky; top: 0; z-index: 10;
    display: flex; gap: 1.5rem; align-items: center;
}
nav a { color: var(--text); text-decoration: none; font-weight: 500; }
nav a:hover { color: var(--primary); }
nav .spacer { flex: 1; }
h1 { margin: 1.5rem 0 1rem; font-size: 1.6rem; }
h2 {
    margin: 2rem 0 0.75rem; font-size: 1.05rem; color: var(--muted);
    text-transform: uppercase; letter-spacing: .04em; font-weight: 600;
    border-bottom: 1px solid var(--border); padding-bottom: .4rem;
}
h3 { margin: 0; font-size: 1.05rem; }
.type-group { margin: 2rem 0 0.75rem; }
.type-group > summary {
    list-style: none; cursor: pointer; font-size: 1.05rem; color: var(--muted);
    text-transform: uppercase; letter-spacing: .04em; font-weight: 600;
    border-bottom: 1px solid var(--border); padding-bottom: .4rem;
    display: flex; align-items: center; gap: 0.4rem;
}
.type-group > summary::-webkit-details-marker { display: none; }
.type-group > summary::before { content: '▸'; display: inline-block; transition: transform .15s; }
.type-group[open] > summary::before { transform: rotate(90deg); }
.type-group > summary:hover { color: var(--text); }
.type-group-body { padding-top: 0.75rem; }
table { border-collapse: collapse; width: 100%; background: var(--surface); }
th, td {
    padding: 0.5rem 0.7rem; text-align: left; vertical-align: middle;
    border-bottom: 1px solid var(--border); font-size: 0.92rem;
}
th { color: var(--muted); font-weight: 600; font-size: 0.76rem; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: rgba(37,99,235,0.06); }
.badge {
    display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px;
    font-size: 0.75rem; font-weight: 600; white-space: nowrap;
}
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-error { background: var(--error-bg); color: var(--error); }
.dot {
    display: inline-block; width: 0.6em; height: 0.6em; border-radius: 50%;
    margin-right: 0.4em; flex-shrink: 0;
}
.dot-ok { background: var(--ok); }
.dot-error { background: var(--error); }
.zero-ip {
    display: inline-flex; align-items: center; justify-content: center;
    width: 1.1em; height: 1.1em; border-radius: 50%; flex-shrink: 0;
    background: var(--off-bg); color: var(--off); font-weight: 700; font-size: 0.72rem;
    margin-right: 0.2em;
}
.ip-zero { color: var(--off); font-weight: 700; }
.badge-pending, .badge-neutral { background: var(--pending-bg); color: var(--pending); }
.badge-off { background: var(--off-bg); color: var(--off); }
.status-ok { color: var(--ok); }
.status-error { color: var(--error); font-weight: bold; }
.status-pending { color: var(--pending); }
.muted { color: var(--muted); font-size: 0.88em; }
.warn-box {
    background: var(--off-bg); border: 1px solid var(--off);
    border-radius: var(--radius); padding: 1rem; margin-bottom: 1rem;
}
form.inline { display: inline; }
input[type=text], input[type=search], input[type=number], input[type=password], select {
    border: 1px solid var(--border); border-radius: 6px; padding: 0.4rem 0.6rem;
    background: var(--surface); color: var(--text); font-size: 0.9rem;
}
button {
    border: 1px solid var(--primary); background: var(--primary); color: #fff;
    border-radius: 6px; padding: 0.4rem 0.8rem; font-size: 0.9rem; cursor: pointer;
}
button:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); margin-bottom: 0.6rem; overflow: hidden;
}
.card > summary {
    list-style: none; cursor: pointer; padding: 0.7rem 1rem;
    display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
}
.card > summary::-webkit-details-marker { display: none; }
.card > summary::before { content: '▸'; color: var(--muted); display: inline-block; transition: transform .15s; }
.card[open] > summary::before { transform: rotate(90deg); }
.card > summary:hover { background: rgba(37,99,235,0.06); }
.card .card-body { padding: 0 1rem 1rem; border-top: 1px solid var(--border); }
.card .card-name { font-weight: 600; }
.card .spacer { flex: 1; }
#list-filter {
    width: 100%; max-width: 420px; padding: 0.55rem 0.8rem;
    font-size: 0.95rem; margin: 1rem 0; display: block;
}
.panel {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1rem;
}
.form-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.is-hidden { display: none; }