:root {
  color-scheme: light;
  --paper: #f5f0e7;
  --paper-raised: #fffdf8;
  --ink: #1c2421;
  --muted: #65706b;
  --line: #d4cec3;
  --soft: #e9e3d9;
  --good: #19754d;
  --warn: #aa6518;
  --bad: #b7372f;
  --shadow: 0 16px 40px rgba(45, 39, 30, 0.08);
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #151a18;
  --paper-raised: #1d2421;
  --ink: #f0eee7;
  --muted: #a8b1ac;
  --line: #3b4540;
  --soft: #272f2c;
  --good: #66cf99;
  --warn: #e5a75a;
  --bad: #ef8178;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #151a18;
    --paper-raised: #1d2421;
    --ink: #f0eee7;
    --muted: #a8b1ac;
    --line: #3b4540;
    --soft: #272f2c;
    --good: #66cf99;
    --warn: #e5a75a;
    --bad: #ef8178;
    --shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(77, 65, 45, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 28px;
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent), white 25%);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  transform: translateY(-160%);
  border-radius: 0.35rem;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  display: flex;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  gap: 0.65rem;
  align-items: center;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 0.95rem;
}

.header-actions {
  display: flex;
  gap: 0.55rem;
  align-items: center;
}

.icon-button,
.text-button,
.filter {
  min-height: 2.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper-raised);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
}

.icon-button {
  width: 2.5rem;
  padding: 0;
}

.text-button {
  padding: 0 1rem;
}

.icon-button:hover,
.text-button:hover,
.filter:hover {
  border-color: var(--ink);
}

main {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(2rem, 8vw, 8rem);
  min-height: 35rem;
  padding: clamp(4rem, 8vw, 7.5rem) 0 4.5rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 1.15rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.15em;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(3.1rem, 8vw, 7.6rem);
  font-weight: 850;
  letter-spacing: -0.075em;
  line-height: 0.91;
}

.tagline {
  max-width: 42rem;
  margin: 1.75rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.repo-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.65rem;
}

.meta-pill {
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 0.3rem;
  background: var(--paper-raised);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.repo-link {
  display: inline-flex;
  gap: 0.45rem;
  margin-top: 1.5rem;
  align-items: center;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 800;
  text-underline-offset: 0.25rem;
}

.repo-link[hidden] {
  display: none;
}

.grade-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.grade-card {
  position: relative;
  display: flex;
  width: clamp(14rem, 23vw, 18rem);
  aspect-ratio: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--paper-raised);
  box-shadow: 12px 12px 0 color-mix(in srgb, var(--accent), transparent 20%);
  transform: rotate(2deg);
}

.grade-label {
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.grade-card strong {
  margin: 0.05em 0 -0.08em;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(6rem, 13vw, 9.5rem);
  font-style: italic;
  font-weight: 800;
  line-height: 1;
}

.grade-card[data-grade="a"] strong,
.grade-card[data-grade="b"] strong {
  color: var(--good);
}

.grade-card[data-grade="c"] strong {
  color: var(--warn);
}

.grade-card[data-grade="d"] strong,
.grade-card[data-grade="f"] strong {
  color: var(--bad);
}

.score {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.gate {
  margin: 1.5rem 0 0;
  font-size: 0.82rem;
  font-weight: 800;
}

.gate-pass {
  color: var(--good);
}

.gate-fail {
  color: var(--bad);
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
}

.summary-strip > div {
  display: flex;
  min-height: 7.5rem;
  padding: 1.5rem;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--line);
}

.summary-strip > div:last-child {
  border-right: 0;
}

.summary-strip span {
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.summary-strip strong {
  margin-top: 0.25rem;
  font-size: clamp(1.35rem, 3vw, 2rem);
  letter-spacing: -0.04em;
}

.checks-section {
  padding: clamp(4.5rem, 8vw, 8rem) 0;
}

.section-heading {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
  align-items: end;
  justify-content: space-between;
}

h2 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.25rem);
  letter-spacing: -0.055em;
  line-height: 1;
}

.filters {
  display: flex;
  gap: 0.4rem;
}

.filter {
  padding: 0 1rem;
}

.filter.active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.check-card {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: var(--paper-raised);
  box-shadow: var(--shadow);
  animation: rise 480ms both;
  animation-delay: var(--delay);
}

.check-card[hidden] {
  display: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
}

.check-top,
.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.check-number {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.status {
  display: inline-flex;
  min-height: 1.75rem;
  padding: 0 0.65rem;
  align-items: center;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.status-passed {
  background: color-mix(in srgb, var(--good), transparent 85%);
  color: var(--good);
}

.status-warning {
  background: color-mix(in srgb, var(--warn), transparent 85%);
  color: var(--warn);
}

.status-failed {
  background: color-mix(in srgb, var(--bad), transparent 85%);
  color: var(--bad);
}

.status-skipped {
  background: var(--soft);
  color: var(--muted);
}

.check-card h3 {
  margin: 1.35rem 0 0.4rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: -0.035em;
}

.check-description {
  min-height: 3em;
  margin: 0;
  color: var(--muted);
}

.result-row {
  margin-top: 1.7rem;
}

.result-value {
  font-size: 1rem;
}

.weight {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.69rem;
}

.meter {
  height: 0.45rem;
  margin-top: 0.75rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--soft);
}

.meter-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.details {
  margin-top: 1.4rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.details summary {
  padding-top: 1rem;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 800;
}

.detail-list {
  max-height: 16rem;
  margin: 0.9rem 0 0;
  padding: 0 0 0 1.4rem;
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.72rem;
}

.detail-list li + li {
  margin-top: 0.55rem;
}

.about-section {
  display: grid;
  grid-template-columns: 0.45fr 1fr 1fr;
  gap: 2rem;
  padding: 4rem 0;
  align-items: start;
  border-top: 1px solid var(--line);
}

.about-section h2 {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
}

.about-section > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

footer {
  display: flex;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.74rem;
}

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

noscript {
  display: block;
  padding: 1rem;
  background: var(--bad);
  color: white;
  text-align: center;
}

@media (max-width: 760px) {
  .text-button {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 3.5rem;
    padding-top: 4rem;
  }

  .grade-wrap {
    align-items: flex-start;
  }

  .summary-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .summary-strip > div:nth-child(2) {
    border-right: 0;
  }

  .summary-strip > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
  }

  .filters {
    width: 100%;
    overflow-x: auto;
  }

  .check-grid,
  .about-section {
    grid-template-columns: 1fr;
  }

  .about-section {
    gap: 1rem;
  }

  footer {
    gap: 0.75rem;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .check-card {
    animation: none;
  }
}

@media print {
  :root {
    color-scheme: light;
    --paper: white;
    --paper-raised: white;
    --ink: black;
    --muted: #4a4a4a;
    --line: #b8b8b8;
  }

  body {
    background: white;
  }

  .header-actions,
  .filters,
  .repo-link,
  .about-section {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 2rem 0;
  }

  .check-card {
    break-inside: avoid;
    box-shadow: none;
  }
}