:root {
  --bg: #f4f6f9;
  --bg-elev: #ffffff;
  --bg-muted: #eef1f6;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --ok: #16a34a;
  --ok-bg: #dcfce7;
  --warn: #ea580c;
  --warn-bg: #ffedd5;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --info: #2563eb;
  --info-bg: #dbeafe;
  --muted: #94a3b8;
  --shadow: 0 1px 2px rgb(15 23 42 / 0.06), 0 8px 24px rgb(15 23 42 / 0.04);
  --radius: 14px;
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
}

html.dark {
  --bg: #0b1220;
  --bg-elev: #121a2b;
  --bg-muted: #1a2438;
  --text: #e8eef9;
  --text-muted: #93a0b8;
  --border: #243049;
  --accent: #60a5fa;
  --accent-soft: #1e3a5f;
  --ok: #4ade80;
  --ok-bg: #052e16;
  --warn: #fb923c;
  --warn-bg: #431407;
  --danger: #f87171;
  --danger-bg: #450a0a;
  --info: #60a5fa;
  --info-bg: #172554;
  --muted: #64748b;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.4);
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); min-height: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }

.app-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 1.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; letter-spacing: -0.03em; display: flex; align-items: center; gap: 0.5rem; }
.nav { display: flex; gap: 0.25rem; flex: 1; }
.nav a {
  padding: 0.45rem 0.8rem; border-radius: 999px; color: var(--text-muted); font-weight: 500;
}
.nav a.active, .nav a:hover { background: var(--accent-soft); color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 0.5rem; color: var(--text-muted); font-size: 0.9rem; }
.icon-btn {
  border: 1px solid var(--border); background: var(--bg-muted); border-radius: 8px;
  width: 36px; height: 36px; cursor: pointer;
}

.layout { padding: 1.25rem; max-width: 1400px; margin: 0 auto; }
.split { display: grid; grid-template-columns: 280px 1fr 260px; gap: 1rem; }
.split-2 { display: grid; grid-template-columns: 280px 1fr; gap: 1rem; }
@media (max-width: 1100px) {
  .split, .split-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1rem;
}
.card h2, .card h3 { margin: 0 0 0.75rem; font-size: 0.95rem; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0.75rem; margin-bottom: 1rem; }
.kpi { padding: 1rem; }
.kpi .num { font-size: 1.8rem; font-weight: 700; letter-spacing: -0.04em; }
.kpi .label { color: var(--text-muted); font-size: 0.85rem; }

.list { display: flex; flex-direction: column; gap: 0.35rem; max-height: calc(100vh - 10rem); overflow: auto; }
.list a, .list-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.65rem 0.75rem; border-radius: 10px; border: 1px solid transparent;
}
.list a:hover, .list a.active { background: var(--accent-soft); border-color: transparent; }
.search, select, input[type=text], input[type=password], textarea {
  width: 100%; padding: 0.5rem 0.7rem; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-muted); margin-bottom: 0.5rem;
}
.btn {
  background: var(--accent); color: white; border: 0; border-radius: 10px;
  padding: 0.5rem 0.85rem; cursor: pointer; font-weight: 600;
}
.btn.secondary { background: var(--bg-muted); color: var(--text); border: 1px solid var(--border); }

.modules { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.6rem; }
.module-card {
  border: 1px solid var(--border); border-radius: 12px; padding: 0.8rem;
  background: var(--bg-muted); display: flex; flex-direction: column; gap: 0.35rem;
}
.module-card strong { font-size: 0.92rem; }

.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-ok { background: var(--ok); }
.dot-warn { background: var(--warn); }
.dot-danger { background: var(--danger); }
.dot-info { background: var(--info); }
.dot-muted { background: var(--muted); }
.badge { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.8rem; color: var(--text-muted); }

.progress { height: 8px; background: var(--bg-muted); border-radius: 99px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--accent); }

.person-row, .alert-row, .activity-row {
  display: flex; gap: 0.7rem; align-items: flex-start; padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}
.avatar {
  width: 36px; height: 36px; border-radius: 50%; background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; font-weight: 700; font-size: 0.75rem; flex-shrink: 0;
  overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }

.matrix { overflow: auto; }
.matrix table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
.matrix th, .matrix td { padding: 0.55rem 0.7rem; text-align: center; border-bottom: 1px solid var(--border); }
.matrix th:first-child, .matrix td:first-child { text-align: left; position: sticky; left: 0; background: var(--bg-elev); }

.alert-high { border-left: 3px solid var(--danger); padding-left: 0.7rem; }
.alert-med { border-left: 3px solid var(--warn); padding-left: 0.7rem; }
.muted { color: var(--text-muted); }
.stack { display: grid; gap: 1rem; }
.grid-2 { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1rem; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

.login-wrap { min-height: 100vh; display: grid; place-items: center; }
.login-card { width: min(22rem, 92vw); }
.error { color: var(--danger); }

.toolbar { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
details.create { margin-bottom: 0.75rem; }