:root {
    --bg: #0f1115; --panel: #171a21; --fg: #e6e6e6; --muted: #8a8f98;
    --border: #262b34; --ok: #2ea043; --bad: #d1242f; --accent: #4c8dff;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }

.topbar { display: flex; align-items: center; justify-content: space-between;
    padding: 0.75rem 1.25rem; background: var(--panel); border-bottom: 1px solid var(--border); }
.brand { font-weight: 600; }
.logout button { background: none; border: 1px solid var(--border); color: var(--fg);
    padding: 0.35rem 0.7rem; border-radius: 6px; cursor: pointer; }

main { max-width: 1000px; margin: 0 auto; padding: 1.5rem 1.25rem; }

.page-head { display: flex; align-items: baseline; justify-content: space-between; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.05rem; margin-top: 2rem; border-bottom: 1px solid var(--border); padding-bottom: 0.4rem; }

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.85rem; }
a { color: var(--accent); }

.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 0.5rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th { color: var(--muted); font-weight: 500; }

.pill { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px; font-size: 0.8rem; }
.pill.ok { background: rgba(46,160,67,0.15); color: var(--ok); }
.pill.bad { background: rgba(209,36,47,0.15); color: var(--bad); }
.pill.muted { background: rgba(138,143,152,0.15); color: var(--muted); }

.infra-map { display: flex; flex-direction: column; align-items: center; padding: 1rem 0; }
.infra-node { background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
    padding: 0.6rem 1rem; display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; }
.infra-node.internet { border-style: dashed; color: var(--muted); }
.infra-node.edge { border-color: var(--accent); }
.arrow { color: var(--muted); line-height: 1; margin: 0.15rem 0; }
.infra-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }
.infra-row.small { margin-top: 0.5rem; }
.infra-caption { margin-top: 1.25rem; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }

.login-card { max-width: 340px; margin: 5rem auto; background: var(--panel);
    border: 1px solid var(--border); border-radius: 10px; padding: 2rem; }
.login-card input { width: 100%; padding: 0.6rem; margin: 0.75rem 0; border-radius: 6px;
    border: 1px solid var(--border); background: var(--bg); color: var(--fg); }
.login-card button { width: 100%; padding: 0.6rem; border: none; border-radius: 6px;
    background: var(--accent); color: #fff; cursor: pointer; }
.error { color: var(--bad); }