:root {
  --primary-color: #0052CC;
  --secondary-color: #172B4D;
  --accent-color: #36B37E;
  --warning-color: #FF5630;
  --info-color: #00B8D9;
  --light-gray: #F4F5F7;
  --medium-gray: #DFE1E6;
  --dark-gray: #505F79;
  --text-color: #172B4D;
  --border-radius: 3px;
  --box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: #f9f9f9;
  padding: 0;
  margin: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

header {
  background-color: var(--primary-color);
  color: white;
  padding: 20px 0;
  margin-bottom: 30px;
}

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

header h1 {
  margin: 0;
  font-size: 28px;
}

.header-meta {
  font-size: 14px;
  opacity: 0.8;
}

.card {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 25px;
  margin-bottom: 30px;
}

.card-header {
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--medium-gray);
}

.card-header h2 {
  margin: 0;
  color: var(--secondary-color);
  font-size: 22px;
}

.card-header p {
  margin-top: 5px;
  color: var(--dark-gray);
  font-size: 14px;
}

.chart-container {
  height: 400px;
  margin-bottom: 20px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}

.data-table th, .data-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid var(--medium-gray);
}

.data-table th {
  background-color: var(--light-gray);
  font-weight: 600;
}

.data-table tr:hover {
  background-color: var(--light-gray);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.metric-card {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 20px;
  text-align: center;
}

.metric-value {
  font-size: 28px;
  font-weight: 600;
  margin: 10px 0;
  color: var(--primary-color);
}

.metric-label {
  font-size: 14px;
  color: var(--dark-gray);
}

.impact-high {
  color: var(--warning-color);
}

.impact-medium {
  color: #FF8B00;
}

.impact-low {
  color: var(--accent-color);
}

.scenario {
  margin-bottom: 30px;
  padding: 20px;
  border-left: 4px solid var(--primary-color);
  background-color: var(--light-gray);
}

.scenario h3 {
  margin-bottom: 10px;
  color: var(--secondary-color);
}

.scenario-impact {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
}

.impact-high-bg {
  background-color: rgba(255, 86, 48, 0.1);
  color: var(--warning-color);
}

.impact-medium-bg {
  background-color: rgba(255, 139, 0, 0.1);
  color: #FF8B00;
}

.impact-low-bg {
  background-color: rgba(54, 179, 126, 0.1);
  color: var(--accent-color);
}

.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

@media (max-width: 768px) {
  .two-columns {
    grid-template-columns: 1fr;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr 1fr;
  }
}

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

.competitor-card {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
  padding: 15px;
  border-radius: var(--border-radius);
  background-color: white;
  box-shadow: var(--box-shadow);
}

.competitor-rank {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary-color);
  margin-right: 15px;
  min-width: 30px;
}

.competitor-info {
  flex-grow: 1;
}

.competitor-name {
  font-weight: 600;
  margin-bottom: 5px;
}

.competitor-vendor {
  font-size: 14px;
  color: var(--dark-gray);
}

.competitor-installations {
  font-weight: 600;
  color: var(--secondary-color);
}

.review-card {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 20px;
  margin-bottom: 15px;
}

.review-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.review-stars {
  color: #FFD700;
}

.review-date {
  color: var(--dark-gray);
  font-size: 14px;
}

.review-text {
  font-size: 14px;
  line-height: 1.5;
}

.tabs {
  display: flex;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--medium-gray);
}

.tab {
  padding: 10px 20px;
  cursor: pointer;
  border-bottom: 3px solid transparent;
}

.tab.active {
  border-bottom-color: var(--primary-color);
  font-weight: 600;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.conclusion-list {
  margin: 20px 0;
  padding-left: 20px;
}

.conclusion-list li {
  margin-bottom: 10px;
}

.recommendation {
  background-color: rgba(54, 179, 126, 0.1);
  border-left: 4px solid var(--accent-color);
  padding: 15px;
  margin: 20px 0;
}

.recommendation h3 {
  color: var(--accent-color);
  margin-bottom: 10px;
}

.warning {
  background-color: rgba(255, 86, 48, 0.1);
  border-left: 4px solid var(--warning-color);
  padding: 15px;
  margin: 20px 0;
}

.warning h3 {
  color: var(--warning-color);
  margin-bottom: 10px;
}

footer {
  background-color: var(--secondary-color);
  color: white;
  padding: 20px 0;
  margin-top: 50px;
}

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

footer p {
  margin: 0;
  font-size: 14px;
}

.footer-links a {
  color: white;
  margin-left: 15px;
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}