:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --low: #16a34a;
  --moderate: #ca8a04;
  --elevated: #ea580c;
  --high: #dc2626;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
}

.nav-links a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.card,
.mini-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.card {
  padding: 24px;
}

.headline {
  font-size: 2rem;
  margin: 0 0 8px 0;
}

.subheadline {
  color: var(--muted);
  margin: 0 0 16px 0;
}

.summary {
  color: var(--text);
  font-size: 1rem;
  line-height: 1.6;
  margin-top: 12px;
}

.score-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 260px;
}

.score-label {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.score-value {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
}

.score-status {
  margin-top: 12px;
  font-size: 1.1rem;
  font-weight: 700;
}

.updated {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.low-text {
  color: var(--low);
}

.moderate-text {
  color: var(--moderate);
}

.elevated-text {
  color: var(--elevated);
}

.high-text {
  color: var(--high);
}

.elevated-text {
  color: var(--elevated);
}

.cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.mini-card {
  padding: 20px;
}

.mini-title {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.mini-value {
  font-size: 2rem;
  font-weight: 700;
}

.section-card {
  margin-bottom: 24px;
}

.section-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 16px 0;
}

.section-subtitle {
  font-size: 1.1rem;
  margin-top: 28px;
  margin-bottom: 10px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.chart-card h3 {
  margin: 0 0 16px 0;
  font-size: 1rem;
}

.page-card {
  max-width: 900px;
}

.content-list {
  line-height: 1.8;
  color: var(--text);
}

.footer {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 12px 0 24px;
}

.gauge-card {
  min-height: 320px;
}

.gauge-wrap {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  height: 190px;
}

.gauge-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

.gauge-center {
  position: absolute;
  left: 50%;
  top: 72%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 100%;
}

.gauge-center .score-value {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1;
}

.gauge-center .score-status {
  margin-top: 10px;
  font-size: 1rem;
  font-weight: 700;
}

@media (max-width: 900px) {
  .hero,
  .grid,
  .cards-row {
    grid-template-columns: 1fr;
  }

  .score-value {
    font-size: 3rem;
  }

  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .nav-links a {
    margin-left: 0;
    margin-right: 16px;
  }
}