:root {
  --pink: #ff4fa3;
  --ink: #14100f;
  --paper: #fffaf4;
  --muted: #6d6560;
  --line: #e8ded2;
  --card: #ffffff;
  --error: #c0344a;
  --warning: #9a6207;
  --info: #2f6f8f;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f6efe9;
    --paper: #14100f;
    --muted: #a79c94;
    --line: #302825;
    --card: #1c1715;
    --error: #ff8095;
    --warning: #e8b558;
    --info: #7fc3e0;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
}

.wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.masthead {
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.masthead .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: inherit;
  text-decoration: none;
}

.mark {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: var(--pink);
  box-shadow: inset 4px 4px 0 var(--paper);
}

nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
}

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

.hero h1 {
  font-size: clamp(30px, 5vw, 42px);
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}

.hero p {
  max-width: 62ch;
  color: var(--muted);
  margin: 0 0 32px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}

.field-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 8px;
}

textarea,
select,
input[type="search"] {
  width: 100%;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 10px 12px;
}

textarea {
  resize: vertical;
}

textarea:focus,
select:focus,
input:focus,
button:focus-visible {
  outline: 2px solid var(--pink);
  outline-offset: 1px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 12px;
  margin-top: 14px;
}

.controls label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.controls select {
  width: auto;
  min-width: 150px;
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  padding: 10px 16px;
}

#validate {
  background: var(--pink);
  border-color: var(--pink);
  color: #fff;
  font-weight: 600;
  margin-left: auto;
}

.examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--muted);
}

.example {
  font-size: 13px;
  padding: 5px 10px;
  border-radius: 999px;
}

.results {
  margin-top: 28px;
}

.verdict {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-weight: 600;
  margin-bottom: 16px;
}

.verdict .tally {
  font-weight: 400;
  color: var(--muted);
}

.report {
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
}

.report > h3 {
  margin: 0;
  padding: 10px 16px;
  font-size: 14px;
  font-family: var(--mono);
  background: var(--card);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.report.clean > h3 {
  border-bottom: none;
}

.badge {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: inherit;
}

.finding {
  padding: 14px 16px;
  border-top: 1px solid var(--line);
}

.finding:first-of-type {
  border-top: none;
}

.finding-head {
  display: flex;
  gap: 10px;
  align-items: baseline;
  flex-wrap: wrap;
}

.severity {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.severity.error {
  color: var(--error);
}

.severity.warning {
  color: var(--warning);
}

.severity.info {
  color: var(--info);
}

.code {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}

.finding p {
  margin: 8px 0 0;
}

.finding .fix,
.finding .cite {
  font-size: 14px;
  color: var(--muted);
}

.target {
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--paper);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 13px;
  overflow-x: auto;
  white-space: pre;
}

.target mark {
  background: color-mix(in srgb, var(--pink) 30%, transparent);
  color: inherit;
  border-radius: 3px;
  padding: 1px 0;
}

.why {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pink);
}

.why h2 {
  font-size: 22px;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}

/* Two columns keeps ten items to five even rows. An auto-fit grid would leave
   a ragged last row at most widths. */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: why;
}

@media (min-width: 760px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 20px;
  }
}

.why-grid li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px 18px;
  transition:
    border-color 140ms ease,
    transform 140ms ease;
}

.why-grid li:hover {
  border-color: var(--pink);
  transform: translateY(-1px);
}

.why-grid li::before {
  counter-increment: why;
  content: counter(why, decimal-leading-zero);
  display: block;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--pink);
}

.why-grid strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 6px;
}

.why-grid span {
  display: block;
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
}

.why-grid span code {
  font-family: var(--mono);
  font-size: 0.92em;
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper);
}

/* A boxed chip inside a heading pushes the punctuation after it away and
   indents a heading that starts with one, so headings keep the mono voice
   without the box. */
.why-grid strong code {
  font-family: var(--mono);
  font-size: 0.94em;
  color: var(--pink);
}

@media (prefers-reduced-motion: reduce) {
  .why-grid li {
    transition: none;
  }

  .why-grid li:hover {
    transform: none;
  }
}

.coverage {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.coverage h2 {
  font-size: 22px;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.coverage h3 {
  font-size: 15px;
  margin: 0 0 4px;
}

.count {
  color: var(--muted);
  font-weight: 400;
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

.list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  max-height: 340px;
  overflow-y: auto;
  font-size: 14px;
}

.list li {
  padding: 7px 0;
  border-top: 1px solid var(--line);
}

.list li:first-child {
  border-top: none;
}

.list .id {
  font-family: var(--mono);
  font-size: 13px;
}

.list .hosts {
  color: var(--muted);
  font-size: 12px;
  font-family: var(--mono);
  word-break: break-all;
}

footer {
  margin: 56px 0 40px;
  font-size: 14px;
}

footer code {
  font-family: var(--mono);
}

@media (max-width: 560px) {
  #validate {
    margin-left: 0;
    width: 100%;
  }
}