:root {
  --bg: #0b1120;
  --bg2: #0f172a;
  --panel: #131c2e;
  --panel2: #1a2438;
  --line: #24304a;
  --text: #e5e9f2;
  --muted: #8b97ad;
  --accent: #3b82f6;
  --ok: #10b981;
  --down: #ef4444;
  --warn: #f59e0b;
  --unreach: #a78bfa;
  --unknown: #64748b;
  --off: #475569;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.18);
  --radius: 12px;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f3f5f9; --bg2: #e9edf4; --panel: #ffffff; --panel2: #f6f8fb; --line: #e2e7ef;
  --text: #0f172a; --muted: #5b6577; --accent: #2563eb; --ok: #059669; --down: #dc2626;
  --warn: #d97706; --unreach: #7c3aed; --unknown: #64748b; --off: #94a3b8;
  --shadow: 0 1px 2px rgba(15,23,42,.06), 0 6px 20px rgba(15,23,42,.06);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.45 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
code, .mono { font-family: ui-monospace, "JetBrains Mono", "Cascadia Code", Consolas, monospace; font-size: 12.5px; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
small { color: var(--muted); }
h2 { font-size: 15px; margin: 0; font-weight: 600; letter-spacing: .1px; }
h3 { font-size: 13px; margin: 0 0 8px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .6px; }

/* ---------- layout ---------- */
.app { display: grid; grid-template-columns: 228px 1fr; min-height: 100vh; }
.side {
  background: var(--bg2); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 18px 12px; position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; gap: 10px; align-items: center; padding: 4px 8px 20px; }
.brand b { display: block; font-size: 15px; }
.brand small { font-size: 11.5px; }
.brand.big { padding: 0 0 18px; }
.brand.big b { font-size: 20px; }
.logo {
  width: 32px; height: 32px; border-radius: 9px; flex: none;
  background: var(--ok) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M5 17h5l3-7 5 13 3-6h6' stroke='white' stroke-width='2.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100%;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--ok) 18%, transparent);
}
nav { display: flex; flex-direction: column; gap: 2px; }
nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px;
  color: var(--muted); font-weight: 500;
}
nav a:hover { background: var(--panel); color: var(--text); }
nav a.active { background: var(--panel); color: var(--text); box-shadow: inset 3px 0 0 var(--accent); }
nav a em { margin-left: auto; font-style: normal; font-size: 11px; background: var(--down); color: #fff; padding: 1px 7px; border-radius: 10px; }
nav a em:empty { display: none; }
.side-foot { margin-top: auto; display: flex; gap: 6px; }
i[data-i] { width: 18px; height: 18px; display: inline-flex; flex: none; }
i[data-i] svg { width: 100%; height: 100%; }

main { min-width: 0; }
.top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 16px 28px; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px);
}
.top h1 { font-size: 19px; margin: 0; font-weight: 650; }
.top-right { display: flex; align-items: center; gap: 12px; font-size: 12.5px; }
.view { padding: 22px 28px 60px; max-width: 1600px; }

/* ---------- componentes ---------- */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.card.pad { padding: 16px 18px; }
.card-h { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.card-b { padding: 14px 18px; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gauto { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.mt { margin-top: 16px; }

.btn {
  display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--line);
  background: var(--panel2); color: var(--text); padding: 8px 13px; border-radius: 8px;
  font: inherit; font-weight: 550; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--down); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn.ghost:hover { color: var(--text); background: var(--panel); }
.btn.sm { padding: 5px 9px; font-size: 12.5px; }
.btn.icon { padding: 6px; }
.btn i[data-i] { width: 15px; height: 15px; }

input, select, textarea {
  width: 100%; background: var(--bg2); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 10px; font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent); border-color: var(--accent); }
label { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; color: var(--muted); font-weight: 500; }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); }
label.check input { width: auto; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
.form .full { grid-column: 1 / -1; }
.hint { font-size: 12px; color: var(--muted); margin: 0; }

/* estados */
.st { --c: var(--unknown); }
.st-up, .st-online { --c: var(--ok); }
.st-down, .st-offline { --c: var(--down); }
.st-pending, .st-degraded { --c: var(--warn); }
.st-unreachable { --c: var(--unreach); }
.st-unknown { --c: var(--unknown); }
.st-disabled { --c: var(--off); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--c); display: inline-block; flex: none; }
.st-down .dot, .st-offline .dot, .dot.st-down, .dot.st-offline { animation: pulse 1.6s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--c) 70%, transparent); } 70% { box-shadow: 0 0 0 7px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px 2px 7px; border-radius: 20px;
  font-size: 11px; font-weight: 700; letter-spacing: .4px; color: var(--c);
  background: color-mix(in srgb, var(--c) 14%, transparent); border: 1px solid color-mix(in srgb, var(--c) 30%, transparent);
  white-space: nowrap;
}
.pill { padding: 3px 10px; border-radius: 20px; font-size: 12px; border: 1px solid var(--line); background: var(--panel); }
.tag { font-size: 11px; padding: 1px 7px; border-radius: 5px; background: var(--panel2); border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }

/* banner global */
.hero {
  display: flex; align-items: center; gap: 18px; padding: 18px 22px; border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--c) 35%, var(--line));
  background: linear-gradient(100deg, color-mix(in srgb, var(--c) 16%, var(--panel)), var(--panel) 60%);
}
.hero .big-dot { width: 46px; height: 46px; border-radius: 50%; background: color-mix(in srgb, var(--c) 20%, transparent); display: grid; place-items: center; flex: none; }
.hero .big-dot::after { content: ""; width: 18px; height: 18px; border-radius: 50%; background: var(--c); box-shadow: 0 0 18px var(--c); }
.hero b { font-size: 20px; display: block; }

/* KPIs */
.kpis { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.kpi { padding: 14px 16px; }
.kpi .lbl { font-size: 12px; color: var(--muted); font-weight: 550; }
.kpi .val { font-size: 28px; font-weight: 700; letter-spacing: -.5px; margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi .val small { font-size: 15px; font-weight: 500; }
.kpi .sub { font-size: 12px; color: var(--muted); }
.kpi.c-ok .val { color: var(--ok); } .kpi.c-down .val { color: var(--down); } .kpi.c-warn .val { color: var(--warn); }

/* probes */
.probe-card { padding: 16px; cursor: pointer; transition: transform .12s, border-color .12s; display: flex; flex-direction: column; gap: 10px; }
.probe-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.probe-card .name { font-weight: 650; font-size: 15px; }
.stackbar { display: flex; height: 7px; border-radius: 6px; overflow: hidden; background: var(--panel2); }
.stackbar span { background: var(--c); }
.legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 5px; }

/* problemas */
.prob { display: flex; gap: 12px; padding: 11px 18px; border-bottom: 1px solid var(--line); align-items: flex-start; }
.prob:last-child { border-bottom: 0; }
.prob .dot { margin-top: 6px; }
.prob .t { font-weight: 600; }
.prob .r { font-size: 12.5px; color: var(--muted); }
.empty { padding: 28px; text-align: center; color: var(--muted); }
.empty b { display: block; color: var(--ok); font-size: 15px; margin-bottom: 4px; }

/* VPN tiles */
.vpns { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.vpn { padding: 11px 13px; border-radius: 10px; background: var(--panel2); border: 1px solid var(--line); border-left: 3px solid var(--c); cursor: pointer; }
.vpn .n { font-weight: 600; font-size: 13px; }
.vpn .l { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.vpn .l small { font-size: 12px; }

/* tablas */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); font-weight: 600; padding: 9px 12px; border-bottom: 1px solid var(--line); background: var(--panel2); position: sticky; top: 0; }
td { padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: color-mix(in srgb, var(--panel2) 70%, transparent); }
tr.grp td { background: var(--bg2); font-weight: 650; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; padding: 6px 12px; }
.tbl-wrap { overflow-x: auto; }
.num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.actions { white-space: nowrap; text-align: right; }
.reason { font-size: 12px; color: var(--muted); max-width: 340px; }
.meters { display: flex; gap: 10px; }
.meter { width: 64px; font-size: 11px; color: var(--muted); }
.meter div { height: 5px; border-radius: 3px; background: var(--panel2); overflow: hidden; margin-top: 2px; }
.meter div span { display: block; height: 100%; background: var(--ok); }
.meter.w div span { background: var(--warn); } .meter.c div span { background: var(--down); }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; font-size: 13px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; word-break: break-all; }

/* charts */
.chart { height: 270px; }
.chart.tall { height: 320px; }
.chart-card .card-h { padding: 11px 16px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { background: var(--panel2); color: var(--muted); border: 0; padding: 6px 11px; font: inherit; font-size: 12.5px; cursor: pointer; border-right: 1px solid var(--line); }
.seg button:last-child { border-right: 0; }
.seg button.on { background: var(--accent); color: #fff; }

/* eventos */
.sev { font-size: 10.5px; font-weight: 700; padding: 2px 7px; border-radius: 4px; letter-spacing: .4px; }
.sev-critical { background: color-mix(in srgb, var(--down) 18%, transparent); color: var(--down); }
.sev-warning { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.sev-ok { background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); }
.sev-info { background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); }
.ev-msg { white-space: pre-line; font-size: 12.5px; color: var(--muted); }

/* código */
.cmd { position: relative; background: var(--bg2); border: 1px solid var(--line); border-radius: 8px; padding: 10px 104px 10px 12px; word-break: break-all; }
.cmd .btn { position: absolute; top: 6px; right: 6px; }

/* modal */
.modal { position: fixed; inset: 0; background: rgba(2,6,23,.6); backdrop-filter: blur(3px); display: grid; place-items: center; z-index: 50; padding: 16px; }
.modal-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; width: min(720px, 100%); max-height: 92vh; overflow: auto; box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.modal-card .card-h { position: sticky; top: 0; background: var(--panel); z-index: 1; }
.modal-foot { display: flex; gap: 8px; justify-content: flex-end; padding: 14px 18px; border-top: 1px solid var(--line); }

.toast { position: fixed; bottom: 22px; left: 50%; transform: translate(-50%, 30px); opacity: 0; background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 8px; font-weight: 550; transition: .2s; z-index: 60; pointer-events: none; }
.toast.on { opacity: 1; transform: translate(-50%, 0); }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px;
  background: radial-gradient(1200px 600px at 20% -10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent), var(--bg); }
.login-card { width: min(380px, 100%); background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 28px; display: flex; flex-direction: column; gap: 14px; box-shadow: var(--shadow); }
.err { color: var(--down); min-height: 18px; margin: 0; font-size: 13px; }

.arch { font-size: 13px; color: var(--muted); }
.arch svg { width: 100%; max-width: 860px; height: auto; display: block; margin: 0 auto 8px; }

@media (max-width: 1280px) { .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 1000px) { .g2, .g3 { grid-template-columns: 1fr; } }
@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .side { position: fixed; bottom: 0; top: auto; height: auto; width: 100%; flex-direction: row; padding: 6px; z-index: 20; border-right: 0; border-top: 1px solid var(--line); }
  .side .brand, .side-foot { display: none; }
  nav { flex-direction: row; justify-content: space-around; width: 100%; }
  nav a span { display: none; }
  .top { padding: 12px 16px; }
  #updated { display: none; }
  .view { padding: 16px 16px 90px; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form { grid-template-columns: 1fr; }
}