:root { color-scheme: light; font-family: "Segoe UI", system-ui, sans-serif; color: #203348; background: #f3f6fa; }
* { box-sizing: border-box; }
body { margin: 0; }
a { color: #225faf; text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid #e7a923; outline-offset: 3px; }
.site-header { display: flex; align-items: center; gap: 32px; min-height: 84px; padding: 16px max(24px, calc((100vw - 1140px) / 2)); background: #fff; border-bottom: 1px solid #dfe6ee; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 23px; font-weight: 750; color: #17304f; }
.brand-mark { display: grid; place-items: center; width: 37px; height: 37px; border-radius: 10px; background: #245dab; color: #fff; }
nav { display: flex; gap: 24px; margin-left: auto; }
nav a { color: #4c6076; font-weight: 600; }
.public-badge, .status-label { display: inline-block; padding: 6px 11px; border-radius: 20px; background: #e5f3ef; color: #22634f; font-size: 12px; font-weight: 700; }
main { max-width: 1188px; margin: 0 auto; padding: 48px 24px 64px; }
h1 { font-size: clamp(32px, 4vw, 49px); line-height: 1.12; letter-spacing: -1.5px; margin: 15px 0 20px; color: #17304f; }
h2 { font-size: 23px; margin: 0 0 20px; color: #17304f; }
h3 { font-size: 20px; margin: 20px 0 8px; }
p { line-height: 1.65; }
.eyebrow { text-transform: uppercase; letter-spacing: 2px; color: #537398; font-size: 12px; font-weight: 750; margin: 0 0 12px; }
.lead { color: #5b6d81; font-size: 17px; max-width: 760px; }
.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 70px; align-items: center; margin-bottom: 52px; }
.panel { background: #fff; border: 1px solid #dfe6ee; border-radius: 16px; padding: 28px; box-shadow: 0 4px 18px #18385806; }
.notice { padding: 15px 18px; border-left: 3px solid #87aaca; background: #eef4fa; color: #526c85; font-size: 14px; line-height: 1.6; margin-top: 25px; }
.diagnostic-form { display: flex; flex-direction: column; }
label { margin: 12px 0 9px; font-size: 14px; font-weight: 650; }
input, select { width: 100%; padding: 12px; border: 1px solid #bfcdda; border-radius: 7px; background: #fff; font: inherit; color: #203348; }
.field-help { margin: 8px 0 21px; color: #6b7c8d; font-size: 13px; }
button, .button { border: 0; border-radius: 7px; padding: 13px 20px; background: #245dab; color: #fff; font: inherit; font-weight: 650; text-align: center; cursor: pointer; display: inline-block; }
button:hover, .button:hover { background: #194b90; text-decoration: none; }
.secondary { background: #edf3fa; color: #225faf; margin-top: 24px; }
.secondary:hover { background: #dfeaf8; }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; }
.target-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.target-card p { color: #6b7c8d; margin-bottom: 24px; }
.workbench { display: grid; grid-template-columns: 350px 1fr; gap: 24px; margin-top: 32px; }
.results h2 { margin-top: 22px; }
.results p { color: #607286; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 22px 0; }
.metric-grid strong { display: block; font-size: 31px; color: #17304f; }
.metric-grid span { display: block; font-size: 13px; color: #708093; margin-top: 6px; }
.warning { background: #fff0d6; color: #856118; }
.neutral { background: #edf1f6; color: #5b6d81; }
.validation-error { padding: 16px; background: #fff5e7; color: #7c541b; border: 1px solid #efdab8; border-radius: 8px; line-height: 1.6; overflow-wrap: anywhere; }
.prose { max-width: 820px; }
.prose h2:not(:first-child) { margin-top: 30px; }
.prose p { color: #5b6d81; }
footer { padding: 24px; border-top: 1px solid #dfe6ee; text-align: center; font-size: 12px; color: #738396; }
@media (max-width: 800px) {
  .site-header { gap: 18px; flex-wrap: wrap; }
  nav { gap: 18px; }
  .public-badge { display: none; }
  .hero, .workbench { grid-template-columns: 1fr; gap: 24px; }
  .target-grid { grid-template-columns: 1fr; }
  main { padding-top: 32px; }
  .metric-grid strong { font-size: 25px; }
}