:root {
  color-scheme: light;
  --ink: #071525;
  --ink-soft: #17334b;
  --paper: #f7f1e7;
  --paper-strong: #fffdf8;
  --mint: #7ce0c2;
  --mint-deep: #136b58;
  --coral: #ff7a66;
  --line: #c7d4cf;
  --shadow: 0 18px 55px rgba(7, 21, 37, 0.12);
  --radius: 1.25rem;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  min-width: 18rem;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 2%, rgba(124, 224, 194, 0.28), transparent 27rem),
    linear-gradient(180deg, var(--paper-strong), var(--paper));
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: #075d4d;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 0.1em;
}

a:hover {
  color: #003f35;
}

a:focus-visible,
summary:focus-visible {
  outline: 0.2rem solid var(--coral);
  outline-offset: 0.2rem;
  border-radius: 0.2rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: var(--ink);
  background: var(--mint);
  border-radius: 0.5rem;
  transform: translateY(-180%);
}

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

.site-header {
  border-bottom: 1px solid rgba(7, 21, 37, 0.14);
  background: rgba(255, 253, 248, 0.92);
}

.header-inner,
.page-shell,
.site-footer {
  width: min(74rem, calc(100% - 2rem));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 0.15rem solid var(--ink);
  border-radius: 0.55rem;
  background: var(--mint);
}

.site-nav ul,
.language-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.site-nav a,
.language-nav a {
  display: inline-block;
  padding: 0.35rem 0.15rem;
  font-weight: 700;
}

.page-shell {
  padding-block: clamp(2.2rem, 6vw, 5.5rem);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(17rem, 0.7fr);
  align-items: center;
  gap: clamp(1.4rem, 5vw, 4.5rem);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--mint-deep);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.18;
  text-wrap: balance;
}

h1 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.25rem, 7vw, 5.15rem);
  letter-spacing: -0.055em;
}

h2 {
  margin-top: 2.6rem;
  font-size: clamp(1.45rem, 3vw, 2rem);
  letter-spacing: -0.025em;
}

h3 {
  margin-top: 1.8rem;
  font-size: 1.2rem;
}

p,
li {
  max-width: 75ch;
}

.lead {
  max-width: 58ch;
  margin-block: 1.15rem 0;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.precision-card,
.content-card,
.locale-section,
.notice {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 248, 0.94);
  box-shadow: var(--shadow);
}

.precision-card,
.content-card,
.locale-section {
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.precision-card {
  position: relative;
  overflow: hidden;
  min-height: 19rem;
  background: var(--ink);
  color: var(--paper-strong);
}

.precision-card::before,
.precision-card::after {
  position: absolute;
  content: "";
  border: 0.18rem solid var(--mint);
}

.precision-card::before {
  inset: 1.3rem auto auto 1.3rem;
  width: 4rem;
  height: 4rem;
  border-right: 0;
  border-bottom: 0;
}

.precision-card::after {
  right: 1.3rem;
  bottom: 1.3rem;
  width: 5rem;
  height: 5rem;
  border-top: 0;
  border-left: 0;
}

.precision-card strong {
  display: block;
  margin-top: 7rem;
  color: var(--mint);
  font-size: 1.6rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: clamp(2rem, 5vw, 4rem);
}

.content-card h2 {
  margin-top: 0;
}

.button-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.8rem;
  margin-top: 0.5rem;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  color: var(--ink);
  background: var(--mint);
  font-weight: 800;
  text-decoration: none;
}

.button-link:hover {
  color: var(--ink);
  background: #9cedd5;
}

.notice {
  margin-block: 1.5rem;
  padding: 1rem 1.2rem;
  border-left: 0.35rem solid var(--coral);
  box-shadow: none;
}

.notice strong {
  display: block;
}

.language-block {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.language-block:first-of-type {
  border-top: 0;
}

.language-block h2 {
  margin-top: 0;
}

.locale-section {
  margin-top: 2rem;
  scroll-margin-top: 1rem;
}

.locale-section > h2 {
  margin-top: 0;
}

.meta-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  padding: 0;
  list-style: none;
}

.meta-list li {
  padding: 0.8rem;
  border-radius: 0.75rem;
  background: #eef7f2;
}

.faq details {
  padding-block: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.faq details:last-child {
  border-bottom: 0;
}

.faq summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 800;
}

.faq details p,
.faq details ul {
  margin-bottom: 0;
}

code {
  overflow-wrap: anywhere;
  padding: 0.12rem 0.35rem;
  border-radius: 0.35rem;
  background: #e9eee9;
  color: #5e1f16;
  font-size: 0.92em;
}

.site-footer {
  padding-block: 2rem 3rem;
  border-top: 1px solid rgba(7, 21, 37, 0.14);
  color: var(--ink-soft);
}

.site-footer p {
  margin: 0.2rem 0;
}

@media (max-width: 48rem) {
  .header-inner,
  .hero {
    grid-template-columns: 1fr;
  }

  .header-inner {
    display: grid;
    padding-block: 0.85rem;
  }

  .card-grid,
  .meta-list {
    grid-template-columns: 1fr;
  }

  .precision-card {
    min-height: 15rem;
  }

  .precision-card strong {
    margin-top: 5rem;
  }
}

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

@media print {
  body {
    background: #fff;
  }

  .site-header,
  .skip-link,
  .language-nav,
  .precision-card {
    display: none;
  }

  .page-shell {
    width: 100%;
    padding: 0;
  }

  .locale-section,
  .content-card,
  .notice {
    break-inside: avoid;
    border: 0;
    box-shadow: none;
  }
}