/* ========== RESET E VARIÁVEIS ==========*/
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #16b78a;
  --color-primary-light: #e9f8f2;
  --color-secondary: #f59e0b;
  --color-danger: #ef4444;
  --color-dark: #1f2937;
  --color-text: #111827;
  --color-text-light: #6b7280;
  --color-border: #e5e7eb;
  --color-bg: #f9fafb;
  --color-white: #ffffff;
  
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.15);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: #f0faf7;
  color: var(--color-text);
  line-height: 1.6;
  padding-bottom: 40px;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 20px;
}

/* ========== HEADER ==========*/
header {
  background-color: var(--color-white);
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 30px;
  box-shadow: var(--shadow);
}

.header-content {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-logo {
  width: 100px;
  height: 100px;
  object-fit: contain;
}

header h1 {
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

/* ========== FORMULÁRIO ==========*/
.form-section {
  background-color: var(--color-white);
  padding: 30px;
  border-radius: var(--radius);
  margin-bottom: 30px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 14px;
  text-transform: uppercase;
  color: var(--color-text-light);
}

.form-group input[type="text"],
.form-group input[type="number"] {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  transition: border-color 0.2s;
}

/* Garanta que a lista de sugestões do Autocomplete seja visível */
.pac-container {
  z-index: 3000 !important;
  background: #fff !important;
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow) !important;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(22, 183, 138, 0.1);
}

.form-group input[type="text"]:disabled {
  background-color: var(--color-bg);
  cursor: not-allowed;
}

/* ========== CHECKBOX ==========*/
.checkbox-group {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 14px;
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.checkbox-group label {
  margin: 0;
  cursor: pointer;
  text-transform: none;
  color: var(--color-text);
}

/* ========== SELETOR DE TRANSPORTE ==========*/
.transport-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.transport-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-white);
  cursor: pointer;
  transition: all 0.2s;
  gap: 8px;
  min-height: 120px;
}

.transport-option:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.transport-option.selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg);
}

.transport-option img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.transport-option span {
  font-size: 13px;
  font-weight: 500;
  text-align: center;
}

/* ========== LOADER ==========*/
#loader {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: 16px 24px;
  border-radius: var(--radius);
  align-items: center;
  gap: 12px;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid var(--color-white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== BOTÃO CALCULAR ==========*/
.calc-button {
  width: 100%;
  padding: 12px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-top: 10px;
}

.calc-button:hover {
  background-color: #0e9a6b;
}

.calc-button:active {
  transform: scale(0.98);
}

/* ========== SEÇÃO DE RESULTADOS ==========*/
.results-section {
  margin-bottom: 30px;
}

.results-section h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}

.card {
  background-color: var(--color-white);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 2px solid transparent;
}

.card.green {
  border: 2px solid var(--color-primary);
  background-color: var(--color-primary-light);
}

.card-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-label img {
  width: 20px;
  height: 20px;
}

.card-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.card-subtext {
  font-size: 13px;
  color: var(--color-text-light);
}

/* ========== COMPARATIVO DE TRANSPORTES ==========*/
.comparative-section {
  margin-bottom: 30px;
}

.comparative-section h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

#comparative-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.transport-card {
  background-color: var(--color-white);
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.transport-card:hover {
  border-color: var(--color-primary);
}

.transport-card.selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
}

.transport-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.card-header h3 {
  font-size: 16px;
  font-weight: 600;
  flex: 1;
}

.badge-selected {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.card-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat label {
  font-size: 11px;
  color: var(--color-text-light);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.stat strong {
  font-size: 16px;
  color: var(--color-text);
}

/* ========== BARRA DE PROGRESSO ==========*/
.progress-bar {
  width: 100%;
  height: 12px;
  background-color: var(--color-border);
  border-radius: 6px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 0.5s ease-in-out;
  min-width: 2px;
}

/* ========== SEÇÃO DE CRÉDITOS DE CARBONO ==========*/
.carbon-section {
  background-color: var(--color-white);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.carbon-section h2 {
  font-size: 24px;
  margin-bottom: 24px;
}

.carbon-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.carbon-metric {
  padding: 20px;
  background-color: var(--color-bg);
  border-radius: var(--radius);
}

.carbon-metric-label {
  font-size: 11px;
  color: var(--color-text-light);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.carbon-metric-label img {
  width: 18px;
  height: 18px;
}

.carbon-metric-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.carbon-metric-subtext {
  font-size: 12px;
  color: var(--color-text-light);
}

/* ========== HELP BOX ==========*/
.help-box {
  background-color: var(--color-bg);
  border: 2px dashed #b3d9d1;
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 24px;
  display: flex;
  gap: 12px;
}

.help-box-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  font-size: 16px;
}

.help-box-content h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.help-box-content p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* ========== BOTÃO COMPENSAR ==========*/
.compensate-button {
  width: 100%;
  padding: 14px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.compensate-button:hover {
  background-color: #0e9a6b;
}

.compensate-button:active {
  transform: scale(0.98);
}

/* ========== RESPONSIVIDADE ==========*/
@media (max-width: 768px) {
  .container {
    padding: 12px;
  }

  .transport-selector {
    grid-template-columns: repeat(2, 1fr);
  }

  .summary-cards {
    grid-template-columns: 1fr;
  }

  header h1 {
    font-size: 22px;
  }

  .header-logo {
    width: 80px;
    height: 80px;
  }

  .form-section,
  .carbon-section {
    padding: 20px;
  }

  .card-value {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .transport-selector {
    grid-template-columns: 1fr;
  }

  .card-stats {
    grid-template-columns: 1fr;
  }

  .summary-cards {
    gap: 12px;
  }

  .header-logo {
    width: 60px;
    height: 60px;
  }

  header h1 {
    font-size: 20px;
  }
}