:root {
  color-scheme: dark;
  --background: #08100e;
  --surface: #0d1714;
  --line: rgba(219, 240, 231, 0.14);
  --line-strong: rgba(219, 240, 231, 0.24);
  --text: #edf8f3;
  --muted: #95aaa1;
  --accent: #57e3b0;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 1024px;
  min-height: 100%;
  background: var(--background);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 74% 27%, rgba(51, 135, 105, 0.14), transparent 27rem),
    linear-gradient(rgba(219, 240, 231, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(219, 240, 231, 0.025) 1px, transparent 1px),
    var(--background);
  background-size: auto, 4rem 4rem, 4rem 4rem, auto;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.site-header,
main,
footer {
  width: min(1340px, calc(100% - 128px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 108px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-decoration: none;
}

.brand-mark {
  display: flex;
  align-items: end;
  gap: 3px;
  width: 25px;
  height: 25px;
  padding: 4px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
}

.brand-mark span {
  width: 3px;
  border-radius: 2px;
  background: var(--accent);
}

.brand-mark span:nth-child(1) {
  height: 7px;
}

.brand-mark span:nth-child(2) {
  height: 15px;
}

.brand-mark span:nth-child(3) {
  height: 11px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 36px;
}

.header-link {
  color: #c8d8d1;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 160ms ease;
}

.header-link:hover,
.header-link:focus-visible {
  color: var(--accent);
}

.header-current {
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #c8d8d1;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(87, 227, 176, 0.09);
}

main {
  padding: 94px 0 68px;
}

.intro {
  display: grid;
  grid-template-columns: minmax(620px, 1.65fr) minmax(300px, 0.75fr);
  column-gap: 9vw;
  align-items: end;
}

.eyebrow {
  grid-column: 1 / -1;
  margin: 0 0 26px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 800px;
  font-size: clamp(4.4rem, 6.1vw, 6.8rem);
  font-weight: 520;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.lead {
  margin: 0 0 7px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.preview {
  margin-top: 96px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.preview-heading {
  display: flex;
  justify-content: space-between;
  padding: 17px 0;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.preview-index {
  color: #63756d;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.preview-grid article {
  min-height: 205px;
  padding: 29px 36px 30px 0;
}

.preview-grid article + article {
  padding-left: 36px;
  border-left: 1px solid var(--line);
}

.number {
  color: var(--accent);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.72rem;
}

h2 {
  margin: 27px 0 12px;
  font-size: 1.18rem;
  font-weight: 560;
  letter-spacing: -0.015em;
}

.preview-grid p {
  max-width: 315px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.catalog-cta {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 64px;
  padding: 54px 0 0;
}

.catalog-cta h2 {
  margin: 14px 0 10px;
  font-size: 1.65rem;
}

.catalog-cta p {
  max-width: 550px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.catalog-cta > a {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  min-width: 265px;
  padding: 18px 20px;
  color: var(--accent);
  border: 1px solid var(--line-strong);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.catalog-cta > a:hover,
.catalog-cta > a:focus-visible {
  background: var(--surface);
}

footer {
  display: flex;
  justify-content: space-between;
  padding: 0 0 32px;
  color: #63756d;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.overview-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(310px, 0.65fr);
  gap: clamp(56px, 7vw, 120px);
  align-items: end;
}

.overview-hero h1 {
  max-width: 880px;
  font-size: clamp(4rem, 5.4vw, 6.5rem);
}

.overview-hero .lead {
  max-width: 740px;
  margin-top: 30px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 38px;
}

.hero-actions a,
.section-card a {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.action-primary {
  min-width: 242px;
  padding: 18px 20px;
  color: #07120d;
  background: var(--accent);
  border: 1px solid var(--accent);
  font-size: 0.86rem;
  font-weight: 650;
}

.action-primary:hover,
.action-primary:focus-visible {
  background: #85f4cb;
}

.action-secondary {
  padding: 18px 8px;
  color: var(--text);
  border-bottom: 1px solid var(--line-strong);
  font-size: 0.86rem;
}

.action-secondary:hover,
.action-secondary:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

.overview-stats {
  padding: 28px 30px 25px;
  border: 1px solid var(--line-strong);
  background: rgba(13, 23, 20, 0.84);
}

.stats-caption,
.section-heading {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stats-caption {
  display: block;
  margin-bottom: 17px;
}

.stat-row {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.stat-row strong {
  min-width: 56px;
  color: var(--accent);
  font-size: 2rem;
  font-weight: 540;
  letter-spacing: -0.05em;
}

.stat-row span {
  color: var(--text);
  font-size: 0.86rem;
}

.overview-stats p {
  margin: 21px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.6;
}

.overview-sections {
  margin-top: 92px;
  border-top: 1px solid var(--line-strong);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.section-card {
  display: flex;
  flex-direction: column;
  min-height: 300px;
  padding: 30px 36px 30px 0;
}

.section-card + .section-card {
  padding-left: 36px;
  border-left: 1px solid var(--line);
}

.section-card h2 {
  margin: 24px 0 12px;
  font-size: 1.48rem;
}

.section-card p {
  flex: 1;
  max-width: 360px;
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.section-card a {
  width: fit-content;
  margin-top: 26px;
  padding-bottom: 6px;
  color: var(--accent);
  border-bottom: 1px solid var(--line-strong);
  font-size: 0.86rem;
}

.section-card a:hover,
.section-card a:focus-visible {
  border-color: var(--accent);
}

.review-note {
  display: flex;
  align-items: baseline;
  gap: 55px;
  margin-top: 27px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.review-checklist {
  margin-top: 74px;
  border-top: 1px solid var(--line-strong);
}

.review-checklist-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 48px;
  padding: 28px 0 30px;
}

.review-checklist-heading h2 {
  margin: 13px 0 0;
  font-size: 1.75rem;
  font-weight: 550;
}

.review-checklist-heading p {
  max-width: 610px;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.65;
}

.review-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 36px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.review-list-item {
  border-bottom: 1px solid var(--line);
}

.review-list-item a {
  display: grid;
  grid-template-columns: 22px 28px minmax(0, 1fr) 82px;
  align-items: center;
  gap: 11px;
  min-height: 64px;
  color: var(--text);
  text-decoration: none;
}

.review-list-item a:hover,
.review-list-item a:focus-visible {
  color: var(--accent);
  background: rgba(87, 227, 176, 0.035);
}

.review-list-marker {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border: 1px solid var(--line-strong);
  color: var(--background);
  font-size: 0.75rem;
  font-weight: 700;
}

.review-list-item--in_progress .review-list-marker {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 4px var(--background);
  background: var(--accent);
}

.review-list-item--checked .review-list-marker {
  border-color: var(--accent);
  background: var(--accent);
}

.review-list-number {
  color: var(--accent);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.72rem;
}

.review-list-title {
  overflow: hidden;
  font-size: 0.9rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.review-list-status {
  color: var(--muted);
  font-size: 0.72rem;
  text-align: right;
}

.review-list-item--in_progress .review-list-status,
.review-list-item--checked .review-list-status {
  color: var(--accent);
}

.review-checklist-link {
  display: inline-block;
  margin-top: 23px;
  padding-bottom: 5px;
  color: var(--accent);
  border-bottom: 1px solid var(--line-strong);
  font-size: 0.84rem;
  text-decoration: none;
}

.review-checklist-link:hover,
.review-checklist-link:focus-visible {
  border-color: var(--accent);
}

.review-note .number {
  flex: 0 0 160px;
}

.review-note p {
  max-width: 970px;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.7;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}