.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 20% 20%, var(--brand-tint), transparent 40%),
    radial-gradient(circle at 80% 0%, rgba(15,108,189,.15), transparent 35%),
    var(--surface);
}
.login-card {
  width: min(420px, 92vw);
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: var(--shadow);
}
.login-card img { height: 48px; margin-bottom: 1rem; }
[data-theme="dark"] .login-card img,
[data-theme="dark"] .brand-logo { filter: invert(1); }

.shell {
  display: grid;
  grid-template-columns: var(--nav-width) 1fr;
  min-height: 100vh;
}
.nav {
  background: var(--surface-card);
  border-right: 1px solid var(--border);
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .5rem .75rem 1rem;
}
.brand-logo { height: 32px; }
.brand strong { font-size: .95rem; }
.nav a {
  color: var(--text);
  padding: .65rem .75rem;
  border-radius: var(--radius);
}
.nav a:hover, .nav a.active {
  background: var(--brand-tint);
  color: var(--brand-primary);
}
.nav .spacer { flex: 1; }
.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-card);
}
.content { padding: 1.25rem; }
.grid-kpi {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}
.kpi, .card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  box-shadow: var(--shadow);
}
.kpi .label { color: var(--text-secondary); font-size: .85rem; }
.kpi .value { font-size: 1.4rem; font-weight: 600; margin-top: .25rem; }
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: .75rem;
  align-items: center;
}
.btn {
  background: var(--brand-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: .5rem .9rem;
  cursor: pointer;
}
.btn:hover { background: var(--brand-primary-hover); }
.btn.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn.danger { background: var(--danger); }
.input, select, textarea {
  background: var(--surface-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .5rem .65rem;
}
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
th, td {
  text-align: left;
  padding: .65rem .75rem;
  border-bottom: 1px solid var(--border);
  font-size: .92rem;
  vertical-align: top;
}
th { background: var(--brand-tint); color: var(--text); font-weight: 600; }
.badge {
  display: inline-block;
  padding: .15rem .45rem;
  border-radius: 999px;
  font-size: .75rem;
  background: var(--brand-tint);
  color: var(--brand-primary);
}
.badge.warn { background: var(--warning-bg); color: var(--warning); }
.badge.danger { background: rgba(197,15,31,.12); color: var(--danger); }
.badge.ok { background: rgba(14,112,14,.12); color: var(--success); }
.muted { color: var(--text-secondary); }
.error { color: var(--danger); margin-top: .5rem; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: .75rem;
}
.form-grid label { display: flex; flex-direction: column; gap: .35rem; font-size: .9rem; }
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.45);
  display: grid; place-items: center; z-index: 50; padding: 1rem;
}
.modal {
  width: min(720px, 96vw);
  max-height: 90vh;
  overflow: auto;
  background: var(--surface-card);
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 1rem;
}
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .nav { flex-direction: row; flex-wrap: wrap; border-right: none; border-bottom: 1px solid var(--border); }
}