* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f5f5f5;
  color: #333;
}

/* Login Page */
.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 20px;
}

.login-box {
  background: white;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.login-box h1 {
  margin-bottom: 30px;
  color: #333;
  font-size: 24px;
}

/* Header */
.header {
  background: white;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.header h1 {
  color: #333;
  font-size: 28px;
}

.header-info {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-info span {
  color: #666;
  font-size: 14px;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* --- NOVOS ESTILOS --- */
.app-selection {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.app-selection h2 {
  margin-bottom: 20px;
  color: #333;
  font-size: 22px;
}

.app-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
}

.app-btn {
  background-color: #e9ecef;
  color: #495057;
  border: 2px solid transparent;
}

.app-btn:hover {
  background-color: #dee2e6;
}

.app-btn.active {
  background-color: #e8eaf6;
  color: #3f51b5;
  font-weight: bold;
  border-bottom: 2px solid #3f51b5;
  transform: translateY(0); /* Reset hover effect */
}

#app-content-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

#current-app-title {
  grid-column: 1 / -1; /* Ocupa todas as colunas */
  text-align: center;
  margin-bottom: -10px;
  color: #3f51b5;
  font-size: 24px;
}

.hidden {
  display: none !important;
}
/* --- FIM DOS NOVOS ESTILOS --- */


/* Sections */
.section {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.section h3 { /* Alterado de h2 para h3 */
  margin-bottom: 20px;
  color: #333;
  font-size: 22px;
  border-bottom: 2px solid #667eea;
  padding-bottom: 10px;
}

/* Form Elements */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #555;
}

input[type="text"],
input[type="password"],
textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="password"]:focus,
textarea:focus {
  outline: none;
  border-color: #667eea;
}

textarea {
  min-height: 120px;
  resize: vertical;
  font-family: monospace;
}

/* Buttons */
.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: #667eea;
  color: white;
}

.btn-primary:hover {
  background: #5a6fd8;
  transform: translateY(-2px);
}

.btn-secondary {
  background: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background: #5a6268;
}

.btn-success {
  background: #28a745;
  color: white;
  margin-bottom: 20px;
}

.btn-success:hover {
  background: #218838;
}

.btn-danger {
  background: #dc3545;
  color: white;
  padding: 6px 12px;
  font-size: 12px;
}

.btn-danger:hover {
  background: #c82333;
}

.btn-edit {
  background: #ffc107;
  color: #212529;
  padding: 6px 12px;
  font-size: 12px;
  margin-right: 5px;
}

.btn-edit:hover {
  background: #e0a800;
}

/* Table */
.signals-container {
  margin: 20px 0;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

th,
td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

th {
  background: #f8f9fa;
  font-weight: 600;
  color: #555;
}

tr:hover {
  background: #f8f9fa;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
  background-color: white;
  margin: 10% auto;
  padding: 30px;
  border-radius: 10px;
  width: 90%;
  max-width: 500px;
  position: relative;
}

.close {
  position: absolute;
  right: 20px;
  top: 15px;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  color: #aaa;
}

.close:hover {
  color: #000;
}

.modal-buttons {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* Alerts */
.alert {
  padding: 15px;
  border-radius: 6px;
  margin: 0 20px 20px 20px;
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  min-width: 300px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.alert-error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

/* Responsive */
@media (max-width: 992px) {
  #app-content-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    gap: 20px;
    padding: 0 15px;
  }

  .header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  .section {
    padding: 20px;
  }

  .modal-content {
    margin: 20% auto;
    padding: 20px;
  }
}

/* Loading state */
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.loading {
  position: relative;
}

.loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  margin: auto;
  border: 2px solid transparent;
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}