/* Truecost — Data journalism inspired design */

:root {
  --bg: #fafaf7;
  --text: #1a1a1a;
  --text-secondary: #555;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border: #e5e5e0;
  --card-bg: #ffffff;
  --positive: #059669;
  --negative: #dc2626;
  --warning: #d97706;
  --bar-low: #10b981;
  --bar-medium: #f59e0b;
  --bar-high: #ef4444;
  --bar-negative: #06b6d4;
  --font-body: 'Georgia', 'Times New Roman', serif;
  --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;
  --max-width: 860px;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 18px;
}

/* Layout */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* Header */
header {
  border-bottom: 3px solid var(--text);
  padding: 20px 0 16px;
  margin-bottom: 48px;
}
header .container { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; }
.logo {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.logo span { color: var(--accent); }
nav { display: flex; gap: 16px; flex-wrap: wrap; align-items: baseline; }
nav a {
  font-family: var(--font-heading);
  font-size: 13px;
  text-decoration: none;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  white-space: nowrap;
}
nav a:hover, nav a.active { color: var(--text); }

.lang-switch {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-left: 4px;
  padding-left: 12px;
  border-left: 1px solid var(--border);
  white-space: nowrap;
}
.lang-active {
  font-weight: 700;
  color: var(--text);
}
.lang-switch a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
}
.lang-switch a:hover {
  color: var(--text);
}

/* Hero */
.hero {
  margin-bottom: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.hero h1 {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -1px;
}
.hero .subtitle {
  font-size: 22px;
  color: var(--text-secondary);
  max-width: 640px;
}

/* Section headings */
.section-header {
  font-family: var(--font-heading);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 8px;
}
h2 {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

/* Score bar */
.score-bar-container {
  margin: 8px 0 16px;
}
.score-bar {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: visible;
  position: relative;
}
.score-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s ease;
  position: relative;
}
.score-bar-fill.low { background: var(--bar-low); }
.score-bar-fill.medium { background: var(--bar-medium); }
.score-bar-fill.high { background: var(--bar-high); }
.score-bar-fill.negative { background: var(--bar-negative); }

.score-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 42px;
  letter-spacing: -1px;
}
.score-number.low { color: var(--positive); }
.score-number.medium { color: var(--warning); }
.score-number.high { color: var(--negative); }
.score-number.negative { color: var(--bar-negative); }
.score-label {
  font-family: var(--font-heading);
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 24px;
  margin-bottom: 16px;
  transition: box-shadow 0.2s;
}
.card:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.card a { text-decoration: none; color: inherit; }
.card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.card-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
}
.card-category {
  font-family: var(--font-heading);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  background: var(--bg);
  padding: 4px 10px;
  border-radius: 3px;
  white-space: nowrap;
}
.card-description {
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 16px;
}
.card-surprising {
  margin-top: 12px;
  padding: 12px 16px;
  background: #fef3c7;
  border-left: 3px solid var(--warning);
  font-size: 15px;
}

/* Grid */
.items-grid { display: grid; grid-template-columns: 1fr; gap: 0; }

/* Comparison */
.comparison-pair {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: stretch;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.comparison-vs {
  display: flex;
  align-items: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  color: var(--text-secondary);
}

/* Polluter card */
.polluter-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--negative);
  padding: 24px;
  margin-bottom: 20px;
}
.polluter-stat {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 800;
  color: var(--negative);
}
.polluter-stat-label {
  font-family: var(--font-heading);
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.action-list {
  margin-top: 16px;
  padding-left: 0;
  list-style: none;
}
.action-list li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 16px;
}
.action-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Dimension bars */
.dimension-row {
  display: grid;
  grid-template-columns: 140px 1fr 50px;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
}
.dimension-label {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
}
.dimension-bar {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
}
.dimension-bar-fill {
  height: 100%;
  border-radius: 3px;
}
.dimension-value {
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: right;
  color: var(--text-secondary);
}

/* Methodology */
.method-step {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.method-step:last-child { border-bottom: none; }
.step-number {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 800;
  color: var(--border);
  float: left;
  margin-right: 20px;
  line-height: 1;
}

/* Sources */
.source-list {
  margin-top: 16px;
  padding-left: 0;
  list-style: none;
}
.source-list li {
  padding: 4px 0;
  font-size: 14px;
  color: var(--text-secondary);
  font-family: var(--font-heading);
}
.source-list li::before { content: "📄 "; }

/* Footer */
footer {
  margin-top: 64px;
  padding: 24px 0;
  border-top: 3px solid var(--text);
  font-family: var(--font-heading);
  font-size: 14px;
  color: var(--text-secondary);
}
footer .container { display: flex; justify-content: space-between; }

/* CTA */
.cta {
  text-align: center;
  padding: 48px 24px;
  margin: 48px 0;
  background: var(--card-bg);
  border: 2px solid var(--text);
}
.cta h2 { margin-bottom: 12px; }
.cta p { color: var(--text-secondary); max-width: 560px; margin: 0 auto; }

/* Responsive */
@media (max-width: 640px) {
  .hero h1 { font-size: 32px; }
  .hero .subtitle { font-size: 18px; }
  header .container { flex-direction: column; gap: 12px; }
  .comparison-pair { grid-template-columns: 1fr; }
  .comparison-vs { justify-content: center; }
  .dimension-row { grid-template-columns: 100px 1fr 40px; }
}