:root {
  --bg: #f3f6fa;
  --surface: #fff;
  --ink: #202833;
  --muted: #566474;
  --blue: #245bd6;
  --blue-hover: #1845aa;
  --line: #dce3ec;
  --track: #e9eef4;
  --good: #18704c;
  --warning: #9b5109;
  --poor: #b42b3a;
  --neutral: #667381;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --text-sm: .875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-heading: 1.5rem;
  --text-title: 2.25rem;
  --text-data: 2rem;
  --regular: 400;
  --strong: 600;
  --leading-body: 1.55;
  --leading-heading: 1.2;
  --tracking-title: -.025em;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  font-synthesis: none;
}
* { box-sizing: border-box; }
body { margin: 0; font-size: var(--text-base); line-height: var(--leading-body); }
[hidden] { display: none !important; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: var(--strong); line-height: var(--leading-heading); }
h1 { font-size: var(--text-title); letter-spacing: var(--tracking-title); margin: 24px 0 16px; }
h2 { font-size: var(--text-heading); }
h3 { font-size: var(--text-lg); }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
.page-shell { width: min(1120px, calc(100% - 64px)); margin: 0 auto; }
.page-header { padding: 48px 0 32px; }
.eyebrow { display: flex; align-items: center; gap: 10px; font-size: var(--text-sm); font-weight: var(--strong); }
.brand-mark { display: grid; place-items: center; width: 28px; height: 28px; border: 2px solid var(--blue); border-radius: 7px; color: var(--blue); font-size: var(--text-lg); }
.intro { max-width: 65ch; color: var(--muted); font-size: var(--text-lg); }
.check-panel { padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
label { display: block; font-weight: var(--strong); margin-bottom: 8px; }
.form-row { display: flex; gap: 12px; }
input { min-width: 0; flex: 1; min-height: 52px; padding: 12px 16px; border: 1px solid #8492a4; border-radius: 8px; color: var(--ink); background: var(--surface); }
input::placeholder { color: var(--muted); }
input[aria-invalid="true"] { border-color: var(--poor); }
button { display: flex; justify-content: center; align-items: center; gap: 12px; min-height: 52px; padding: 12px 24px; border: 0; border-radius: 8px; background: var(--blue); color: #fff; font-weight: var(--strong); cursor: pointer; }
button:hover:not(:disabled) { background: var(--blue-hover); }
button:disabled { cursor: wait; background: #4969b0; }
input:disabled { background: var(--bg); color: var(--muted); }
.hint, .section-note, .checked-time, .section-description { color: var(--muted); font-size: var(--text-sm); }
.hint { margin-top: 8px; }
.live-message:empty, .error-message:empty { display: none; }
.live-message, .error-message { margin-top: 16px; padding: 12px 16px; border-radius: 8px; }
.live-message { background: var(--bg); }
.error-message { color: #922332; background: #fff0f1; border-left: 3px solid var(--poor); }
.spinner { width: 18px; height: 18px; border: 2px solid #ffffff66; border-top-color: white; border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.report { margin-top: 32px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.report-summary, .report-section { padding: 32px; }
.report-summary { border-top: 3px solid var(--blue); }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 12px; }
.mode-badge { padding: 4px 10px; background: #edf2fd; border: 1px solid #d4dff7; border-radius: 6px; color: #244a99; font-size: var(--text-sm); white-space: nowrap; }
.checked-url { margin-top: 16px; font-size: var(--text-lg); font-weight: var(--strong); overflow-wrap: anywhere; }
.checked-time { margin-top: 4px; font-variant-numeric: tabular-nums; }
.summary { margin-top: 24px; padding-left: 16px; border-left: 3px solid var(--status-color, var(--neutral)); max-width: 70ch; font-size: var(--text-lg); }
.partial-notice { margin-top: 12px; color: var(--muted); }
.report-section { border-top: 1px solid var(--line); }
.three-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 24px; }
.score-card { display: flex; align-items: center; gap: 16px; min-width: 0; }
.score-ring { width: 100px; height: 100px; flex: 0 0 100px; display: grid; place-items: center; border-radius: 50%; background: conic-gradient(var(--status-color) calc(var(--score) * 1%), var(--track) 0); }
.score-ring-inner { width: 84px; height: 84px; display: grid; place-content: center; text-align: center; background: var(--surface); border-radius: 50%; }
.score-number { font-size: var(--text-data); font-weight: var(--strong); line-height: var(--leading-heading); font-variant-numeric: tabular-nums; }
.score-out-of { font-size: var(--text-sm); color: var(--muted); }
.score-label { min-width: 0; }
.score-label h3 { font-size: var(--text-base); overflow-wrap: anywhere; }
.status { display: block; margin-top: 8px; color: var(--status-color); font-size: var(--text-sm); font-weight: var(--strong); }
.good { --status-color: var(--good); }
.needs-improvement { --status-color: var(--warning); }
.poor { --status-color: var(--poor); }
.unavailable { --status-color: var(--neutral); }
.metric-card { padding: 20px; border: 1px solid var(--line); border-radius: 8px; display: flex; flex-direction: column; align-items: flex-start; }
.metric-abbr { font-size: var(--text-sm); color: var(--muted); margin-bottom: 8px; }
.metric-value { margin-top: 20px; font-size: var(--text-data); line-height: var(--leading-heading); font-weight: var(--strong); font-variant-numeric: tabular-nums; }
.metric-value.missing { font-size: var(--text-lg); }
.metric-explanation { margin-top: 16px; color: var(--muted); }
.metric-scale { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; width: 100%; margin-top: auto; padding-top: 24px; }
.metric-scale span { height: 6px; border-radius: 2px; background: var(--track); position: relative; }
.metric-scale .active { background: var(--status-color); }
.metric-scale .active::before { content: ""; position: absolute; top: -7px; left: calc(50% - 3px); border-left: 3px solid transparent; border-right: 3px solid transparent; border-top: 4px solid var(--status-color); }
.scale-caption { display: flex; justify-content: space-between; width: 100%; margin-top: 8px; color: var(--muted); font-size: var(--text-sm); }
.section-description { margin-top: 8px; }
.recommendations { list-style: none; margin: 24px 0 0; padding: 0; counter-reset: recommendation; }
.recommendation { counter-increment: recommendation; display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 16px; padding: 24px 0; border-top: 1px solid var(--line); }
.recommendation:first-child { padding-top: 0; border-top: 0; }
.recommendation:last-child { padding-bottom: 0; }
.recommendation::before { content: counter(recommendation, decimal-leading-zero); width: 36px; height: 36px; display: grid; place-items: center; background: #edf2fd; color: #244a99; border-radius: 6px; font-variant-numeric: tabular-nums; font-size: var(--text-sm); font-weight: var(--strong); }
.recommendation-category { color: var(--muted); font-size: var(--text-sm); margin-bottom: 8px; }
.recommendation h3 { margin-bottom: 8px; }
.recommendation p { max-width: 75ch; overflow-wrap: anywhere; }
.recommendation-why { color: var(--muted); }
.recommendation-action { margin-top: 12px; }
.recommendation-action strong { font-weight: var(--strong); }
.empty-message { margin-top: 24px; color: var(--muted); }
.limitations { background: #f7f9fc; padding: 24px 32px; border-top: 1px solid var(--line); color: var(--muted); }
.limitations h2 { font-size: var(--text-base); color: var(--ink); }
.limitations ul { padding-left: 20px; margin: 12px 0 0; font-size: var(--text-sm); max-width: 85ch; }
.limitations li + li { margin-top: 8px; }
.page-footer { padding: 24px 0 40px; display: flex; flex-wrap: wrap; gap: 12px; color: var(--muted); font-size: var(--text-sm); }
.skip-link { position: fixed; top: 8px; left: 8px; transform: translateY(-150%); padding: 12px; background: var(--surface); z-index: 5; color: var(--blue); }
.skip-link:focus { transform: none; }
@media (min-width: 701px) and (max-width: 1050px) {
  .score-card { flex-direction: column; align-items: center; text-align: center; }
  .three-columns { gap: 16px; }
  .metric-card { padding: 16px; }
}
@media (max-width: 700px) {
  :root { --text-title: 1.75rem; --text-heading: 1.25rem; }
  .page-shell { width: calc(100% - 32px); }
  .page-header { padding: 32px 0 24px; }
  h1 { margin-top: 24px; }
  .intro { font-size: var(--text-base); }
  .check-panel { padding: 20px; }
  .form-row { flex-direction: column; }
  .form-row button, .form-row input { width: 100%; }
  .report { margin-top: 24px; }
  .report-summary, .report-section { padding: 24px 20px; }
  .three-columns { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .score-card { gap: 24px; }
  .score-card + .score-card { padding-top: 20px; border-top: 1px solid var(--line); }
  .score-label h3 { font-size: var(--text-lg); }
  .section-note { max-width: 30ch; }
  .recommendation { grid-template-columns: 28px minmax(0, 1fr); gap: 12px; }
  .recommendation::before { width: 28px; height: 28px; }
  .limitations { padding: 24px 20px; }
  .page-footer { gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; scroll-behavior: auto !important; }
}