:root {
  --wa-green: #25d366;
  --wa-dark: #075e54;
  --wa-teal: #128c7e;
}

body {
  background-color: #f4f6f9;
  min-height: 100vh;
}

.navbar-wa {
  background: linear-gradient(90deg, var(--wa-dark), var(--wa-teal));
}

.navbar-wa .nav-link,
.navbar-wa .navbar-brand {
  color: #fff;
}

.navbar-wa .nav-link.active {
  font-weight: 600;
  border-bottom: 2px solid var(--wa-green);
}

.card {
  border: none;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  border-radius: 0.75rem;
}

.card-header {
  background-color: #fff;
  border-bottom: 1px solid #eef0f2;
  font-weight: 600;
  border-radius: 0.75rem 0.75rem 0 0 !important;
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
}

.stat-card .stat-label {
  color: #6c757d;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-estado-conectado { background-color: var(--wa-green); }
.badge-estado-conectando { background-color: #ffc107; color: #212529; }
.badge-estado-desconectado { background-color: #6c757d; }
.badge-estado-error { background-color: #dc3545; }

#qr-container img {
  max-width: 280px;
  border: 8px solid #fff;
  border-radius: 0.5rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.log-panel {
  background-color: #101418;
  color: #c7d0d9;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.8rem;
  height: 380px;
  overflow-y: auto;
  border-radius: 0.5rem;
  padding: 0.75rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.log-linea { margin-bottom: 2px; }
.log-tipo-error { color: #ff6b6b; }
.log-tipo-whatsapp { color: #51cf66; }
.log-tipo-envio { color: #74c0fc; }
.log-tipo-cola { color: #ffd43b; }
.log-tipo-seguridad { color: #ff922b; }
.log-tipo-evento { color: #da77f2; }
.log-tipo-sistema,
.log-tipo-config,
.log-tipo-sse { color: #adb5bd; }

.json-view {
  background-color: #101418;
  color: #a5d6ff;
  font-family: 'Consolas', monospace;
  font-size: 0.8rem;
  border-radius: 0.5rem;
  padding: 0.75rem;
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
}

.preview-mensaje {
  background-color: #e7f8ef;
  border-left: 4px solid var(--wa-green);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  white-space: pre-wrap;
  font-size: 0.95rem;
}

.table > :not(caption) > * > * {
  vertical-align: middle;
}

.cursor-pointer { cursor: pointer; }

/* DataTables Buttons: estilos limpios (sin conflicto con btn-secondary) */
.dt-export-host .dt-buttons {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
}

.dt-export-host .dt-buttons .btn {
  margin: 0;
}

.dt-export-host .dt-button-collection {
  padding: 0.5rem;
}