:root {
  --background: #ffffff;
  --foreground: #17202a;
  --muted: #5d6875;
  --line: #dfe4e8;
  --link: #245e8f;
  --soft: #f5f7f8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, Helvetica, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.site-header,
.section-shell {
  width: min(100% - 40px, 980px);
  margin-inline: auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
}

.site-header nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
}

.site-header nav a,
.primary-links a,
.site-footer a,
.back-link,
.text-action {
  color: var(--link);
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-header nav a:hover,
.site-header nav a:focus-visible,
.product-row:hover .product-name,
.product-row:focus-visible .product-name {
  color: var(--link);
}

.intro {
  padding-block: 96px 104px;
}

.intro h1,
.product-intro h1 {
  margin: 0;
  font-size: clamp(44px, 7vw, 72px);
  line-height: 1;
  letter-spacing: -0.035em;
}

.intro-copy {
  max-width: 760px;
  margin: 32px 0 0;
  font-size: clamp(20px, 2.7vw, 26px);
  line-height: 1.48;
  letter-spacing: -0.015em;
}

.intro-detail {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.primary-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 28px;
  font-size: 15px;
}

.ruled-section,
.product-detail-section {
  border-top: 1px solid var(--line);
  padding-block: 52px 64px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(160px, 0.33fr) 1fr;
  gap: 32px;
  align-items: baseline;
  margin-bottom: 24px;
}

.section-heading h2,
.product-detail-section h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.product-list,
.experience-list {
  border-top: 1px solid var(--line);
}

.product-row {
  display: grid;
  grid-template-columns: minmax(160px, 0.33fr) minmax(0, 1fr) 150px;
  gap: 32px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.product-name {
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.product-description {
  color: var(--muted);
  font-size: 16px;
}

.product-meta {
  color: var(--link);
  font-size: 14px;
  text-align: right;
}

.experience-row {
  display: grid;
  grid-template-columns: minmax(190px, 0.42fr) minmax(0, 1fr) 100px;
  gap: 32px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.experience-row h3,
.education-row h3,
.detail-grid h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.4;
}

.organization,
.experience-description,
.date,
.education-row p,
.study-abroad,
.detail-grid p,
.detail-copy {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.experience-description,
.date {
  margin-top: 0;
}

.date {
  text-align: right;
}

.education-row {
  display: grid;
  grid-template-columns: 1fr 170px;
  gap: 32px;
  padding-top: 4px;
}

.education-row > p {
  margin-top: 0;
  text-align: right;
}

.study-abroad {
  max-width: 680px;
  margin-top: 18px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 34px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

.site-footer div {
  display: flex;
  gap: 20px;
}

.product-page {
  min-height: 70vh;
}

.product-intro {
  padding-block: 70px 86px;
}

.back-link {
  display: inline-block;
  margin-bottom: 58px;
  font-size: 14px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.product-lead {
  max-width: 780px;
  margin: 30px 0 0;
  font-size: clamp(20px, 2.6vw, 25px);
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.status-line {
  max-width: 780px;
  margin: 34px 0 0;
  padding: 17px 18px;
  border-left: 3px solid var(--link);
  background: var(--soft);
  color: var(--muted);
  font-size: 15px;
}

.product-detail-section {
  display: grid;
  grid-template-columns: minmax(190px, 0.32fr) minmax(0, 1fr);
  gap: 54px;
}

.detail-grid {
  display: grid;
  gap: 30px;
}

.detail-grid p,
.detail-copy {
  max-width: 690px;
  line-height: 1.7;
}

.technical-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.technical-list > div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.technical-list dt {
  font-weight: 650;
}

.technical-list dd {
  margin: 0;
  color: var(--muted);
}

.availability {
  padding-bottom: 90px;
}

.text-action {
  display: inline-block;
  margin-top: 24px;
  font-size: 15px;
}

@media (max-width: 720px) {
  .site-header {
    min-height: 68px;
  }

  .site-header nav {
    gap: 15px;
  }

  .site-header nav a:nth-child(2) {
    display: none;
  }

  .intro {
    padding-block: 72px 78px;
  }

  .section-heading,
  .product-detail-section {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .product-row,
  .experience-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .product-meta,
  .date {
    text-align: left;
  }

  .education-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .education-row > p {
    text-align: left;
  }

  .product-intro {
    padding-block: 52px 66px;
  }

  .back-link {
    margin-bottom: 46px;
  }
}

@media (max-width: 480px) {
  .site-header,
  .section-shell {
    width: min(100% - 30px, 980px);
  }

  .site-header nav a:nth-child(3) {
    display: none;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .technical-list > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

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

@media print {
  .site-header,
  .site-footer {
    display: none;
  }
}