:root {
  --bg: #fff;
  --fg: #111;
  --muted: #666;
  --line: #eaeaea;
  --accent: #0e5b46;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111;
    --fg: #eee;
    --muted: #999;
    --line: #2a2a2a;
    --accent: #3fa98a;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

h1 { font-size: 2.1rem; margin: 0.4em 0 0.5em; }
h2 { font-size: 1.4rem; margin: 1.6em 0 0.6em; }
h3 { font-size: 1.1rem; margin: 1.2em 0 0.4em; }

a { color: var(--accent); }

.site-header {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-family: Georgia, serif;
  font-size: 1.3rem;
  font-weight: bold;
  text-decoration: none;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.brand .accent { color: var(--accent); }

.site-nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.site-nav a { text-decoration: none; color: var(--fg); font-size: 0.95rem; }
.site-nav a:hover { color: var(--accent); }

.site-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 1.25rem 4rem;
}
.site-main--wide { max-width: 880px; }

.dek { color: var(--muted); font-size: 1.05rem; }

.footnote { color: var(--muted); font-size: 0.85rem; }

.site-footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}
.site-footer a { color: var(--muted); }

.hero { text-align: center; padding: 2rem 0 1rem; }

.tool-cards {
  display: grid;
  gap: 1.25rem;
  margin: 2rem 0;
}
.tool-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--fg);
}
.tool-card h2 { margin-top: 0; color: var(--fg); }
.tool-card p { color: var(--muted); }
.tool-card-cta { color: var(--accent); font-weight: 600; }

.cta-block {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.5rem 0;
  margin: 2rem 0;
  text-align: center;
}
.cta-block a { font-weight: 600; }

.points-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}
.points-table th, .points-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--line);
}
.points-table th { color: var(--muted); font-weight: 600; font-size: 0.9rem; }

.calc-widget {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.calc-form { display: grid; gap: 1rem; }
.calc-field label { display: block; font-size: 0.9rem; color: var(--muted); margin-bottom: 0.3rem; }
.calc-field select, .calc-field input[type=number] {
  width: 100%;
  min-height: 48px;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
}

.calc-fieldset { border: none; padding: 0; margin: 0 0 1rem; }
.calc-fieldset legend { font-size: 0.9rem; color: var(--muted); padding: 0; margin-bottom: 0.5rem; }

.spend-field { display: grid; grid-template-columns: 1fr 90px; gap: 0.75rem; align-items: center; margin-bottom: 0.75rem; }
.spend-field label { font-size: 0.95rem; }
.spend-field input[type=range] { width: 100%; min-height: 48px; }
.spend-field input[type=number] { min-height: 40px; }

.radio-row, .checkbox-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; font-size: 0.95rem; }
.radio-row label, .checkbox-row label { display: flex; align-items: center; gap: 0.4rem; min-height: 48px; }

.calc-result { margin-top: 1.5rem; }
.result-figure { font-size: 3rem; font-family: Georgia, serif; color: var(--accent); font-weight: bold; line-height: 1; }
.result-line { margin: 0.4rem 0; }
.result-note { color: var(--muted); font-size: 0.85rem; }
.boundary-note { color: var(--accent); font-size: 0.9rem; }

.card-result {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.card-result h3 { margin-top: 0; }
.card-result .net-value { font-size: 1.8rem; font-family: Georgia, serif; color: var(--accent); font-weight: bold; }
.card-result.not-met { opacity: 0.75; }
.card-result .warn { color: var(--muted); font-style: italic; font-size: 0.9rem; }
.card-result .apply-btn {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.6rem 1.2rem;
  min-height: 48px;
  line-height: 36px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
}

.noscript-note {
  border: 1px dashed var(--line);
  padding: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.faq h3 { color: var(--fg); }
.related-routes ul { padding-left: 1.2rem; }

@media (max-width: 600px) {
  .spend-field { grid-template-columns: 1fr; }
}