:root {
  --primary-color: #222427;
  --accent-color: #E53935;
  --background-color: #F5F7FA;
  --text-color: #333333;
  --card-bg: #FFFFFF;
  --border-radius: 0.5rem;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

body {
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
}

h1 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.header-container {
  background-color: #222427; /* Alterado para cinza escuro conforme solicitado */
  color: white;
  padding: 2rem 0;
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  margin-bottom: 2rem;
  box-shadow: var(--box-shadow);
}

.logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 1rem;
}

.logo-container img {
  max-height: 180px;
  transition: var(--transition);
}

.section-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.section-card:hover {
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.section-header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 0.5rem;
}

.section-header h5 {
  margin: 0;
  color: var(--accent-color);
  font-weight: 600;
}

.section-header .section-icon {
  margin-right: 0.75rem;
  font-size: 1.25rem;
}

.form-label {
  font-weight: 500;
  color: var(--primary-color);
}

select.form-select {
  border-radius: var(--border-radius);
  border: 1px solid #ced4da;
  padding: 0.5rem;
  transition: var(--transition);
}

select.form-select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 0.25rem rgba(229, 57, 53, 0.25);
}

.btn-primary {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  border-radius: var(--border-radius);
  padding: 0.75rem 2rem;
  font-weight: 500;
  transition: var(--transition);
}

.btn-primary:hover {
  background-color: #c62828;
  border-color: #c62828;
  transform: translateY(-2px);
}

.btn-outline-primary {
  color: var(--accent-color);
  border-color: var(--accent-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.btn-outline-primary:hover {
  background-color: var(--accent-color);
  color: white;
}

.nav-tabs {
  border-bottom: 1px solid #dee2e6;
  margin-bottom: 1.5rem;
}

.nav-tabs .nav-link {
  color: var(--text-color);
  border: none;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  padding: 0.75rem 1rem;
  transition: var(--transition);
}

.nav-tabs .nav-link:hover {
  border-color: #e9ecef;
}

.nav-tabs .nav-link.active {
  color: var(--accent-color);
  border-bottom: 3px solid var(--accent-color);
  font-weight: 500;
}

.result-card {
  background-color: #222427;
  color: white;
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-top: 2rem;
  box-shadow: var(--box-shadow);
}

.result-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.result-label {
  font-size: 1rem;
  opacity: 0.8;
}

.condition-good {
  color: #4CAF50;
}

.condition-acceptable {
  color: #FFC107;
}

.condition-bad {
  color: #F44336;
}

.progress-container {
  margin: 1.5rem 0;
}

.progress {
  height: 0.5rem;
  border-radius: var(--border-radius);
}

.progress-bar {
  background-color: var(--accent-color);
}

.guide-link {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--accent-color);
  color: white;
  border-radius: var(--border-radius);
  text-decoration: none;
  transition: var(--transition);
}

.guide-link:hover {
  background-color: #c62828;
  transform: translateY(-2px);
  color: white;
}

/* Responsividade */
@media (max-width: 768px) {
  .logo-container img {
    max-height: 150px;
  }
  
  .section-card {
    padding: 1rem;
  }
  
  .btn-primary {
    width: 100%;
  }
}

/* Animações */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

/* Tooltips personalizados */
.tooltip-inner {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  padding: 0.5rem 1rem;
}

.tooltip.bs-tooltip-auto[x-placement^=top] .arrow::before, 
.tooltip.bs-tooltip-top .arrow::before {
  border-top-color: var(--primary-color);
}