:root {
  --bg: #f4f5f7; --panel: #ffffff; --ink: #1b1f24; --muted: #5d6673; --line: #e2e5ea; --accent: #2457c5;
  --ok: #17803d; --ok-bg: #e5f5ea; --warn: #9a5b00; --warn-bg: #fff2d9; --bad: #b42318; --bad-bg: #fde8e6;
  --unk: #4b5563; --unk-bg: #eceef1; --info: #1d4ed8; --info-bg: #e6edfd;
  --radius: 10px; --shadow: 0 1px 2px rgba(16,24,40,.06);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1216; --panel: #171b21; --ink: #e7eaee; --muted: #9aa3ae; --line: #2a3038; --accent: #7aa2ff;
    --ok: #4ade80; --ok-bg: #11291a; --warn: #fbbf24; --warn-bg: #2d2410; --bad: #f87171; --bad-bg: #321515;
    --unk: #b5bcc6; --unk-bg: #22272e; --info: #93b4ff; --info-bg: #17213a; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-size: 15px; line-height: 1.45; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.35rem; margin: 0 0 .75rem; }
h2 { font-size: 1.05rem; margin: 0 0 .6rem; }
h3 { font-size: .95rem; margin: .8rem 0 .4rem; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .82rem; }
pre { white-space: pre-wrap; word-break: break-word; background: var(--unk-bg); padding: .6rem; border-radius: 8px; margin: .3rem 0; }

/* ---------- layout */
.topbar { position: sticky; top: 0; z-index: 10; background: var(--panel); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: .6rem; padding: .55rem 1rem; }
.brand { font-weight: 700; color: var(--ink); white-space: nowrap; }
.brand small { color: var(--muted); font-weight: 500; }
.menu-btn { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: .3rem .55rem;
  color: var(--ink); font-size: 1rem; cursor: pointer; }
.nav { display: flex; gap: .15rem; flex-wrap: wrap; flex: 1; }
.nav a { padding: .35rem .6rem; border-radius: 7px; color: var(--muted); font-size: .9rem; white-space: nowrap; }
.nav a.active, .nav a:hover { background: var(--unk-bg); color: var(--ink); text-decoration: none; }
.nav .badge { margin-left: .25rem; }
.topbar form { margin: 0; }
main { max-width: 1240px; margin: 0 auto; padding: 1rem; overflow-wrap: anywhere; }
.grid { display: grid; gap: .8rem; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: .9rem; box-shadow: var(--shadow); min-width: 0; overflow-wrap: anywhere; }
td { overflow-wrap: normal; }
.card + .card { margin-top: .8rem; }
.grid > .card + .card { margin-top: 0; }
.section { margin-top: 1rem; }
.row { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
.between { justify-content: space-between; }
.muted { color: var(--muted); }
.small { font-size: .82rem; }
.right { text-align: right; }
.mt { margin-top: .8rem; }
.hide { display: none; }

/* ---------- KPIs */
.kpi { display: flex; flex-direction: column; gap: .15rem; }
.kpi .n { font-size: 1.7rem; font-weight: 700; line-height: 1.1; }
.kpi .l { color: var(--muted); font-size: .82rem; }
.kpi.ok .n { color: var(--ok); } .kpi.bad .n { color: var(--bad); } .kpi.warn .n { color: var(--warn); } .kpi.unk .n { color: var(--unk); }
a.kpi:hover { text-decoration: none; }

/* ---------- chips */
.chip { display: inline-block; padding: .08rem .5rem; border-radius: 999px; font-size: .74rem; font-weight: 600;
  background: var(--unk-bg); color: var(--unk); white-space: nowrap; letter-spacing: .01em; }
.chip.ok { background: var(--ok-bg); color: var(--ok); }
.chip.warn { background: var(--warn-bg); color: var(--warn); }
.chip.bad { background: var(--bad-bg); color: var(--bad); }
.chip.info { background: var(--info-bg); color: var(--info); }
.badge { display: inline-block; min-width: 1.3rem; padding: 0 .35rem; border-radius: 999px; background: var(--bad); color: #fff;
  font-size: .72rem; text-align: center; font-weight: 700; }

/* ---------- tablas */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; font-size: .88rem; }
th { color: var(--muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
tr:last-child td { border-bottom: none; }
td.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }

/* ---------- listas de agentes (tarjetas en móvil) */
.agent-list { display: grid; gap: .55rem; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.agent { background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--unk); border-radius: var(--radius);
  padding: .65rem .75rem; display: flex; flex-direction: column; gap: .25rem; color: var(--ink); }
.agent:hover { text-decoration: none; border-color: var(--accent); }
.agent.s-ok { border-left-color: var(--ok); } .agent.s-bad { border-left-color: var(--bad); } .agent.s-warn { border-left-color: var(--warn); }
.agent .name { font-weight: 650; }
.agent .meta { color: var(--muted); font-size: .8rem; }

/* ---------- formularios */
form.inline { display: inline; }
label { display: block; font-size: .8rem; color: var(--muted); margin: .45rem 0 .15rem; }
input[type=text], input[type=password], input[type=email], input[type=number], input[type=date], input[type=url], select, textarea {
  width: 100%; padding: .5rem .55rem; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); color: var(--ink);
  font-size: 16px; font-family: inherit; }
textarea { min-height: 5rem; }
.check { display: flex; gap: .4rem; align-items: center; color: var(--ink); font-size: .9rem; margin: .35rem 0; }
.check input { width: auto; }
button, .btn { display: inline-block; padding: .45rem .8rem; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent);
  color: #fff; font-size: .88rem; cursor: pointer; font-family: inherit; }
button.secondary, .btn.secondary { background: transparent; color: var(--accent); }
button.danger { background: transparent; color: var(--bad); border-color: var(--bad); }
button.small, .btn.small { padding: .2rem .5rem; font-size: .78rem; }
.btn:hover { text-decoration: none; }
.filters { display: grid; gap: .5rem; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); align-items: end; }
.form-grid { display: grid; gap: .1rem .8rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid .full { grid-column: 1 / -1; }
details > summary { cursor: pointer; color: var(--accent); margin: .3rem 0; }

/* ---------- avisos */
.flash { padding: .6rem .8rem; border-radius: 8px; margin-bottom: .8rem; background: var(--ok-bg); color: var(--ok); }
.flash.error { background: var(--bad-bg); color: var(--bad); }
.notice { padding: .6rem .8rem; border-radius: 8px; background: var(--warn-bg); color: var(--warn); font-size: .88rem; }
.notice.info { background: var(--info-bg); color: var(--info); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: .25rem .8rem; font-size: .9rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.bar { height: 8px; background: var(--unk-bg); border-radius: 999px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--ok); }
.bar.warn > span { background: var(--warn); } .bar.bad > span { background: var(--bad); }
.w0 { width: 0 } .w10 { width: 10% } .w20 { width: 20% } .w30 { width: 30% } .w40 { width: 40% } .w50 { width: 50% }
.w60 { width: 60% } .w70 { width: 70% } .w80 { width: 80% } .w90 { width: 90% } .w100 { width: 100% }

/* ---------- login */
.login { max-width: 360px; margin: 10vh auto; }

/* ---------- móvil */
@media (max-width: 900px) {
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  main { padding: .75rem; }
  .menu-btn { display: inline-block; margin-left: auto; }
  .topbar { flex-wrap: wrap; }
  .nav { display: none; flex-basis: 100%; flex-direction: column; }
  .nav.open { display: flex; }
  .nav a { padding: .55rem .6rem; font-size: 1rem; }
  .topbar form.logout { display: none; }
  .nav.open + form.logout { display: block; }
  .g2, .g3 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .agent-list { grid-template-columns: 1fr; }
  .hide-sm { display: none; }
  .kpi .n { font-size: 1.45rem; }
}