:root {
  --ink: #142c40;
  --muted: #69766f;
  --paper: #f5f4ef;
  --card: #fff;
  --line: #dde2dc;
  --green: #087b50;
  --red: #d74c43;
  --lime: #bce3c6;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: inherit; }
.site-header { height: 84px; max-width: 1220px; margin: auto; padding: 0 28px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(18,32,25,.12); }
.brand { display: flex; gap: 12px; align-items: center; text-decoration: none; letter-spacing: .12em; font-size: 14px; font-weight: 700; }
.brand b { color: var(--green); }
.brand-mark { width: 30px; height: 30px; display: grid; place-items: center; background: var(--ink); color: var(--lime); font-family: Georgia, serif; font-size: 20px; }
.header-link { font-size: 13px; text-underline-offset: 5px; }
main, footer { max-width: 1220px; margin-inline: auto; padding-inline: 28px; }
.hero { padding: 76px 0 52px; position: relative; }
.eyebrow, .kicker { text-transform: uppercase; letter-spacing: .16em; font-size: 11px; font-weight: 800; color: var(--green); }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow span { display: block; width: 28px; height: 2px; background: var(--lime); }
h1 { max-width: 900px; margin: 20px 0 20px; font: 400 clamp(42px, 6vw, 76px)/1.03 Georgia, "Times New Roman", serif; letter-spacing: -.04em; }
h1 em { color: var(--green); font-style: italic; }
.intro { max-width: 650px; color: var(--muted); font-size: 17px; line-height: 1.65; }
.hero-meta { margin-top: 30px; display: flex; gap: 16px; align-items: center; font-size: 12px; color: var(--muted); }
.demo-badge { padding: 7px 10px; background: #ecf0d5; color: #53670a; font-weight: 800; letter-spacing: .1em; }
.chart-card { background: var(--card); border: 1px solid var(--line); box-shadow: 0 18px 48px rgba(24,43,33,.07); padding: 34px 36px 28px; }
.chart-heading { display: flex; justify-content: space-between; align-items: end; }
.kicker { margin: 0 0 8px; }
h2 { font: 400 32px/1.1 Georgia, serif; margin: 0; }
.unit { color: var(--muted); font-size: 12px; letter-spacing: .1em; }
.legend { display: flex; justify-content: flex-end; gap: 24px; margin: 22px 0 4px; color: #536058; font-size: 12px; }
.dot { width: 8px; height: 8px; display: inline-block; border-radius: 50%; margin-right: 7px; }
.observed { background: var(--green); }
.forecast { background: var(--red); }
.chart-shell { position: relative; width: 100%; height: 400px; }
#priceChart { display: block; width: 100%; height: 100%; }
.loading { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 13px; }
.tooltip { position: absolute; pointer-events: none; min-width: 180px; background: var(--ink); color: #fff; padding: 12px 14px; font-size: 12px; line-height: 1.55; box-shadow: 0 8px 20px rgba(0,0,0,.18); transform: translate(-50%, calc(-100% - 12px)); z-index: 2; }
.tooltip strong { font: 400 20px Georgia, serif; display: block; }
.chart-footer { display: flex; justify-content: space-between; gap: 24px; align-items: center; border-top: 1px solid var(--line); padding-top: 22px; }
.chart-footer p { max-width: 520px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.download { display: flex; align-items: center; gap: 12px; padding: 12px 18px; background: var(--ink); color: white; text-decoration: none; font-size: 12px; font-weight: 700; }
.download:hover { background: var(--green); }
.download small { display: block; margin-top: 3px; color: #abb7b0; font-size: 9px; text-transform: uppercase; letter-spacing: .14em; }
.download-icon { font-size: 22px; color: var(--lime); }
.note-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 28px 0 70px; }
.note-grid article { background: var(--paper); padding: 30px; display: flex; gap: 24px; }
.note-number { color: var(--green); font: italic 18px Georgia, serif; }
.note-grid h3 { margin: 0 0 7px; font-size: 14px; }
.note-grid p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.cta { padding: 48px; background: var(--green); color: white; display: flex; justify-content: space-between; align-items: center; }
.cta .kicker { color: var(--lime); }
.cta a { border: 1px solid rgba(255,255,255,.45); padding: 15px 20px; text-decoration: none; font-size: 13px; }
.cta a:hover { background: white; color: var(--green); }
.disclaimer { margin: 24px 0 66px; color: var(--muted); font-size: 11px; line-height: 1.7; }
footer { padding-top: 24px; padding-bottom: 24px; border-top: 1px solid rgba(18,32,25,.13); display: flex; justify-content: space-between; color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }

@media (max-width: 720px) {
  .site-header, main, footer { padding-inline: 18px; }
  .header-link { display: none; }
  .hero { padding: 52px 0 36px; }
  h1 { font-size: 44px; }
  .chart-card { padding: 24px 16px 18px; }
  .chart-shell { height: 330px; }
  .legend { justify-content: flex-start; }
  .chart-footer, .cta { align-items: stretch; flex-direction: column; }
  .download { justify-content: center; }
  .note-grid { grid-template-columns: 1fr; margin-bottom: 44px; }
  .cta { padding: 32px 24px; gap: 26px; }
  footer { gap: 16px; flex-direction: column; }
}

.diagnostic-form {max-width:760px;margin:auto;display:grid;gap:20px}.diagnostic-form label{display:grid;gap:8px;font-weight:600}.diagnostic-form input,.diagnostic-form select{width:100%;padding:14px;border:1px solid #ccd8d4;border-radius:8px;background:#fff;color:#13283a;font:inherit;box-sizing:border-box}.diagnostic-form p{font-size:14px;color:#52645d;line-height:1.65}.diagnostic-form [hidden],[hidden]{display:none!important}.primary{background:#163545;color:#fff;border:0;border-radius:8px;padding:16px 24px;font:inherit;cursor:pointer}.primary:disabled{opacity:.5}.results-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.results-grid strong{display:block;font-size:26px;color:#163545;margin-top:10px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #087b50;outline-offset:4px}#result{margin-top:24px}#result p{line-height:1.7}code{overflow-wrap:anywhere}@media(max-width:600px){.results-grid{grid-template-columns:1fr}.diagnostic-form{gap:14px}.chart-card{padding:20px}}

/* Three annual traces; dashed segments identify forecasts. */
.year-2025{background:#287eb3}.year-2026{background:#e38b28}.year-2027{background:#0b9565}.legend-status{font-size:11px;color:#59696b;white-space:nowrap}
@media (max-width: 720px){.legend{flex-wrap:wrap;gap:12px}.legend-status{width:100%;white-space:normal}}