:root {
  --bg: #f1f5f9;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #0f172a;
  --primary-2: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #f59e0b;
  --border: #e2e8f0;
  --shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.login-screen {
  min-height: 100vh;
  background-size: cover;
  background-position: center;
  position: relative;
}
.login-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.14);
}
.login-frame {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.login-card {
  width: min(430px, 100%);
  background: rgba(255, 255, 255, 0.46);
  backdrop-filter: blur(6px);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,.30);
}
.login-card h1 { margin: 0 0 6px; }
.login-card p { margin: 0 0 18px; color: var(--muted); }

.app-shell {
  display: grid;
  grid-template-columns: 290px 1fr;
  min-height: 100vh;
}
body.menu-collapsed .app-shell { grid-template-columns: 88px 1fr; }

.sidebar {
  background: linear-gradient(180deg, #0f172a, #020617);
  color: #fff;
  padding: 18px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 18px;
}
.sidebar h1 { font-size: 1.2rem; margin: 0 0 4px; }
.sidebar small { color: #cbd5e1; }

.icon-btn {
  border: 0;
  background: rgba(255,255,255,.12);
  color: #fff;
  border-radius: 12px;
  padding: 10px 12px;
  cursor: pointer;
}

.nav-group { display: grid; gap: 8px; }

.nav-link {
  color: #fff;
  text-decoration: none;
  padding: 12px 14px;
  border-radius: 14px;
  display: block;
}
.nav-link:hover, .nav-link.active { background: rgba(255,255,255,.12); }
.nav-link-danger { background: rgba(220,38,38,.18); }

body.menu-collapsed .sidebar h1,
body.menu-collapsed .sidebar small,
body.menu-collapsed .nav-link { font-size: 0; }

.main-content { padding: 22px; }

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.topbar-card, .panel, .stat-card, .flash, .alert-banner, .alert-details {
  background: var(--panel);
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.topbar-card { padding: 16px 18px; flex: 1; }
.topbar-card h2 { margin: 0 0 6px; }
.topbar-card p { margin: 0; color: var(--muted); }
.topbar-actions { display: flex; align-items: center; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 18px;
}
.stat-card { padding: 18px; }
.stat-card span { display: block; color: var(--muted); margin-bottom: 8px; }
.stat-card strong { font-size: 1.9rem; }

.grid-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.panel { padding: 18px; margin-bottom: 16px; }
.panel h3 { margin-top: 0; }

.form-row { margin-bottom: 12px; }
.form-row label { display: block; font-weight: 700; margin-bottom: 6px; }
.form-row input, .form-row select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: .95rem;
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  cursor: pointer;
  font-weight: 700;
}
.btn-primary { background: linear-gradient(90deg, var(--primary), var(--primary-2)); color: #fff; }
.btn-secondary { background: #e2e8f0; color: var(--text); }

.flash { padding: 12px 14px; margin-bottom: 14px; }
.flash.success { border-left: 6px solid var(--success); }
.flash.error { border-left: 6px solid var(--danger); }

.info-list { margin: 0; padding-left: 18px; line-height: 1.6; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: 12px; border-bottom: 1px solid var(--border); text-align: left; }
th { font-size: .84rem; color: var(--muted); text-transform: uppercase; }

.badge {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 700;
}
.ok { background: #dcfce7; color: #166534; }
.alerta { background: #fef3c7; color: #92400e; }
.critico { background: #fee2e2; color: #991b1b; }

.inline-form { display: inline-block; }
.status-form select { min-width: 150px; }

.btn-inline-link {
  display: inline-block;
  background: #e2e8f0;
  color: var(--text);
  border: 0;
  border-radius: 10px;
  padding: 8px 10px;
  text-decoration: none;
  cursor: pointer;
  margin-right: 6px;
}
.btn-inline-link.danger { background: #fee2e2; color: #991b1b; }

.alert-banner {
  padding: 14px 16px;
  margin-bottom: 12px;
  background: linear-gradient(90deg, #991b1b, #dc2626);
  color: #fff;
  cursor: pointer;
  animation: pulse 1s infinite;
}

.alert-details {
  padding: 14px 16px;
  margin-bottom: 16px;
  background: #fff7ed;
  border: 1px solid #fdba74;
}

.hidden { display: none; }

.sector-buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.sector-btn {
  text-decoration: none;
  background: #e2e8f0;
  color: var(--text);
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 700;
}
.sector-btn.active {
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  color: #fff;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.01); }
  100% { transform: scale(1); }
}

@media (max-width: 1024px) {
  .stats-grid, .grid-two { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .app-shell, body.menu-collapsed .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .stats-grid, .grid-two { grid-template-columns: 1fr; }
}