:root {
  --teal: #0F766E;
  --teal-soft: #14B8A6;
  --sky: #0284C7;
  --amber: #D97706;
  --rose: #E11D48;
  --violet: #7C3AED;
  --ink: #0F172A;
  --muted: #64748B;
  --line: #E2E8F0;
  --card: #ffffff;
  --shadow: 0 18px 50px rgba(15, 118, 110, 0.08);
  --radius: 18px;
  --font: "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
button, input, select, textarea { font-family: inherit; }
html, body { margin: 0; min-height: 100%; }
html { font-size: 16px; }
body, body.app-body {
  font-family: var(--font);
  font-optical-sizing: auto;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.011em;
  line-height: 1.5;
  color: var(--ink);
  background: linear-gradient(160deg, #F4F7FB 0%, #E8F4F2 55%, #F0F9FF 100%);
}
h1, h2, h3, .login-hero h2, .login-card h3, .topbar h1, .card h3 {
  font-family: var(--font);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
}
a { color: var(--teal); text-decoration: none; }
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 272px; flex: 0 0 272px; background: #fff; border-right: 1px solid var(--line);
  padding: 22px 16px; position: sticky; top: 0; height: 100vh; overflow: auto;
}
.brand { display: flex; gap: 12px; align-items: center; padding: 6px 10px 22px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, var(--teal), var(--teal-soft));
  display: grid; place-items: center; color: #fff; font-weight: 800;
}
.brand b { display: block; font-size: 15px; }
.brand span { color: var(--muted); font-size: 12px; }
.nav-label { font-size: 11px; letter-spacing: .08em; color: #94A3B8; padding: 14px 12px 6px; text-transform: uppercase; }
.nav-link {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 12px;
  color: #334155; font-weight: 600; font-size: 14px; margin-bottom: 4px;
}
.nav-link svg { width: 18px; height: 18px; opacity: .8; }
.nav-link.active, .nav-link:hover { background: #ECFDF5; color: var(--teal); }
.main { flex: 1; min-width: 0; }
.topbar {
  height: 72px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px; background: linear-gradient(90deg, #ECFDF5, #F0F9FF);
  border-bottom: 1px solid #D1FAE5;
}
.topbar h1 { margin: 0; font-size: 20px; }
.top-actions { display: flex; align-items: center; gap: 12px; }
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--sky), var(--teal-soft));
  color: #fff; display: grid; place-items: center; font-weight: 700;
}
.content { padding: 24px 28px 48px; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat {
  background: var(--card); border-radius: var(--radius); padding: 18px 18px 16px; box-shadow: var(--shadow);
  border: 1px solid #F1F5F9;
}
.stat small { color: var(--muted); font-weight: 700; letter-spacing: .04em; text-transform: uppercase; font-size: 11px; }
.stat strong { display: block; font-size: 28px; margin-top: 6px; }
.stat.teal { border-top: 4px solid var(--teal); }
.stat.sky { border-top: 4px solid var(--sky); }
.stat.amber { border-top: 4px solid var(--amber); }
.stat.rose { border-top: 4px solid var(--rose); }
.stat.violet { border-top: 4px solid var(--violet); }
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid #F1F5F9; padding: 18px;
}
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.input, .select, .textarea {
  border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; font-family: var(--font); font-size: 14.5px; background: #fff; min-width: 0;
}
.btn {
  border: 0; border-radius: 12px; padding: 10px 16px; font-weight: 600; cursor: pointer; font-family: var(--font); font-size: 14.5px;
}
.btn-primary { background: linear-gradient(135deg, var(--teal), var(--teal-soft)); color: #fff; }
.btn-ghost { background: #F8FAFC; color: var(--ink); }
.btn-danger { background: #FFF1F2; color: var(--rose); }
.btn-amber { background: #FFFBEB; color: var(--amber); }
.table-wrap { overflow: auto; }
table.data { width: 100%; border-collapse: collapse; }
table.data th { text-align: left; font-size: 12px; color: var(--muted); padding: 10px 8px; border-bottom: 1px solid var(--line); }
table.data td { padding: 12px 8px; border-bottom: 1px solid #F1F5F9; font-size: 14px; vertical-align: middle; }
.badge { display: inline-flex; padding: 3px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.badge-green { background: #D1FAE5; color: #047857; }
.badge-red { background: #FFE4E6; color: #BE123C; }
.badge-amber { background: #FEF3C7; color: #B45309; }
.badge-sky { background: #E0F2FE; color: #0369A1; }
.who { display: flex; gap: 10px; align-items: center; }
.who img, .who .ph { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; background: #CCFBF1; }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; color: var(--muted); }
.modal-bg { position: fixed; inset: 0; background: rgba(15, 23, 42, .35); display: none; place-items: center; z-index: 40; padding: 20px; }
.modal-bg.open { display: grid; }
.modal { background: #fff; width: min(720px, 100%); border-radius: 20px; padding: 22px; max-height: 90vh; overflow: auto; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 12px; font-weight: 700; color: var(--muted); }
.tree-node { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px; margin: 8px 0 8px 18px; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 28px; }
.alert { padding: 10px 12px; border-radius: 12px; margin-bottom: 12px; }
.alert-error { background: #FFF1F2; color: #BE123C; }
.alert-ok { background: #ECFDF5; color: #047857; }
@media (max-width: 980px) {
  .stat-grid, .grid-2, .info-grid { grid-template-columns: 1fr; }
  .shell { display: block; }
  .sidebar { position: relative; height: auto; width: auto; }
}