:root {
  --sunculture-green: #00B140;
  --sunculture-green-dark: #009935;
  --sunculture-blue: #003366;
  --gray-light: #f3f4f6;
  --gray: #e5e7eb;
  --gray-dark: #6b7280;
  --error-red: #ef4444;
  --success-green: #10b981;
  --white: #ffffff;
  --black: #111827;
  --neutral-bg: #f9fafb;
  --yellow: #fbbf24;
  --orange: #f97316;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  color: var(--black);
  background-color: var(--white);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  background-color: var(--white);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 0.5rem 0; /* Reduced from 1rem to 0.5rem */
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: block;
  max-width: 120px; 
}

.logo-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1024/387; 
}

/* Main Content */
main {
  padding: 3rem 0; 
}

.title-section {
  text-align: center;
  margin-bottom: 2rem;
}

.title-section h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.title-section p {
  color: var(--gray-dark);
}

/* Form */
.form-container {
  max-width: 36rem;
  margin: 0 auto;
}

.card {
  background-color: var(--white);
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.input-container {
  position: relative;
}

.input-container input {
  display: block;
  width: 100%;
  padding: 0.5rem 2.5rem 0.5rem 0.75rem;
  border: 1px solid var(--gray);
  border-radius: 0.375rem;
  font-size: 1rem;
}

.input-container input:focus {
  outline: none;
  border-color: var(--sunculture-green);
  box-shadow: 0 0 0 3px rgba(0, 177, 64, 0.2);
}

.datetime-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.datetime-input {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--gray);
  border-radius: 0.375rem;
  font-size: 1rem;
}

.datetime-input:focus {
  outline: none;
  border-color: var(--sunculture-green);
  box-shadow: 0 0 0 3px rgba(0, 177, 64, 0.2);
}

.input-error {
  border-color: var(--error-red) !important;
}

.input-success {
  border-color: var(--success-green) !important;
}

.input-icon {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
}

.error-icon {
  color: var(--error-red);
}

.success-icon {
  color: var(--success-green);
}

.error-message {
  color: var(--error-red);
  font-size: 0.875rem;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.form-actions {
  display: flex;
  justify-content: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  background-color: var(--sunculture-green);
  color: var(--white);
  border: none;
  border-radius: 0.375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-primary:hover {
  background-color: var(--sunculture-green-dark);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Messages */
.message {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 0.375rem;
}

.message-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--error-red);
}

.message-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success-green);
}

/* Loading Indicator */
.loading-indicator {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--gray-dark);
}

.spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid rgba(0, 177, 64, 0.2);
  border-top-color: var(--sunculture-green);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 0.5rem;
}

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

/* Results */
.results-container {
  margin-top: 1.5rem;
}

.result-card {
  margin-top: 1.5rem;
}

.card-header {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray);
  margin-bottom: 1rem;
}

.card-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-header p {
  color: var(--gray-dark);
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

.highlight {
  font-weight: 600;
}

/* Insights Grid */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.insight-item {
  background-color: var(--neutral-bg);
  border-radius: 0.375rem;
  padding: 0.75rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.insight-item.wide {
  grid-column: span 2;
}

.insight-item.highlight-item {
  background-color: rgba(0, 177, 64, 0.1);
  border: 1px solid var(--sunculture-green);
}

.insight-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-dark);
  margin-bottom: 0.25rem;
}

.insight-value {
  font-size: 1.125rem;
  font-weight: 600;
  word-break: break-word;
}

.value-positive {
  color: var(--success-green);
}

.value-negative {
  color: var(--error-red);
}

.value-neutral {
  color: var(--gray-dark);
}

.pump-utilization {
  color: var(--sunculture-green);
  font-size: 1.5rem;
}

.no-data-message {
  padding: 2rem;
  text-align: center;
  color: var(--gray-dark);
  font-style: italic;
}

/* Advanced Details */
.advanced-details {
  margin-top: 1rem;
  /*border-top: 1px solid var(--gray);*/
  padding-top: 1rem;
}

.details-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.5rem;
  background-color: transparent;
  border: 1px solid var(--gray);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-dark);
  cursor: pointer;
  transition: all 0.2s;
}

.details-toggle:hover {
  background-color: var(--gray-light);
}

.toggle-arrow {
  margin-left: 0.5rem;
}

.raw-data-container {
  margin-top: 1rem;
}

.section-header {
  padding: 0.75rem;
  background-color: var(--gray-light);
  border-radius: 0.375rem;
  margin-bottom: 0.75rem;
}

.section-header h3 {
  font-size: 1rem;
  font-weight: 500;
}

.section-content {
  padding-bottom: 1rem;
}

.json-display {
  white-space: pre-wrap;
  font-family: monospace;
  font-size: 0.875rem;
  background-color: var(--gray-light);
  padding: 0.75rem;
  border-radius: 0.375rem;
  overflow: auto;
  max-height: 15rem;
}

/* Tab styling for raw data card */
.tab-container {
  margin-top: 1rem;
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--gray);
  margin-bottom: 1rem;
}

.tab {
  padding: 0.5rem 1rem;
  background-color: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s ease;
}

.tab:hover {
  background-color: var(--gray-light);
}

.tab.active {
  border-bottom: 2px solid var(--sunculture-green);
  color: var(--sunculture-green);
}

.tab-pane {
  padding: 1rem 0;
}

/* Footer */
.footer {
  background-color: var(--gray-light);
  padding: 1.5rem 0;
  margin-top: 3rem;
  text-align: center;
}

.footer p {
  color: var(--gray-dark);
  font-size: 0.875rem;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Responsive Adjustments */
@media (max-width: 640px) {
  .title-section h1 {
    font-size: 1.5rem;
  }
  
  .card {
    padding: 1rem;
  }
  
  .datetime-container {
    grid-template-columns: 1fr;
  }
  
  .insights-grid {
    grid-template-columns: 1fr;
  }
  
  .insight-item.wide {
    grid-column: span 1;
  }
  
  .json-display {
    font-size: 0.75rem;
  }
  
  .pump-utilization {
    font-size: 1.25rem;
  }
}

.sim-link {
  color: var(--primary-color);
  text-decoration: none;
  border-bottom: 1px dashed var(--primary-color);
  transition: all 0.2s ease;
}

.sim-link:hover {
  color: var(--secondary-color);
  border-bottom-color: var(--secondary-color);
  border-bottom-style: solid;
}