:root {
  color-scheme: light dark;
  --background: #f7f7f5;
  --surface: #ffffff;
  --text: #1c1c1a;
  --muted: #62625d;
  --border: #dfdfd9;
  --accent: #b84a0b;
  --accent-soft: #fff0e6;
  --warning: #8a3c0b;
  --warning-soft: #fff5de;
  --focus: #0067c0;
  --shadow: 0 12px 34px rgb(30 30 20 / 8%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-size: 16px;
  line-height: 1.72;
  overflow-wrap: anywhere;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:hover {
  text-decoration-thickness: 0.13em;
}

a:focus-visible,
summary:focus-visible {
  border-radius: 4px;
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -80px;
  left: 16px;
  z-index: 10;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--text);
  color: var(--surface);
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
}

.header-inner,
.page,
.site-footer {
  width: min(100% - 32px, 920px);
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 68px;
}

.brand {
  color: var(--text);
  font-size: 1.08rem;
  font-weight: 760;
  text-decoration: none;
}

.site-nav ul,
.language-nav ul,
.inline-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
}

.page {
  padding-block: 46px 72px;
}

.hero,
.document-header {
  margin-bottom: 30px;
  padding: clamp(24px, 6vw, 48px);
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.32;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 3.25rem);
  letter-spacing: -0.035em;
}

h2 {
  margin: 0 0 16px;
  font-size: clamp(1.45rem, 4.5vw, 2rem);
  letter-spacing: -0.018em;
}

h3 {
  margin: 28px 0 8px;
  font-size: 1.08rem;
}

p,
ul,
ol {
  margin-block: 0 16px;
}

li + li {
  margin-top: 8px;
}

.lead {
  max-width: 66ch;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: clamp(1.04rem, 2.8vw, 1.2rem);
}

.language-nav {
  margin-top: 22px;
  font-weight: 700;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.language-section {
  scroll-margin-top: 24px;
}

.language-section + .language-section {
  margin-top: 64px;
  padding-top: 52px;
  border-top: 2px solid var(--border);
}

.section-card {
  margin-top: 18px;
  padding: clamp(20px, 4vw, 32px);
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
}

.section-card > :last-child,
.notice > :last-child,
details > :last-child {
  margin-bottom: 0;
}

.notice {
  margin-block: 22px;
  padding: 18px 20px;
  border: 1px solid color-mix(in srgb, var(--warning) 34%, var(--border));
  border-left: 5px solid var(--warning);
  border-radius: 12px;
  background: var(--warning-soft);
}

.contact-box {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  padding: 20px;
  border-radius: 14px;
  background: var(--accent-soft);
}

.contact-box strong {
  font-size: 1.05rem;
}

details {
  border-top: 1px solid var(--border);
  padding-block: 4px;
}

details:last-child {
  border-bottom: 1px solid var(--border);
}

summary {
  cursor: pointer;
  padding: 15px 4px;
  font-weight: 720;
  line-height: 1.45;
}

details p,
details ul,
details ol {
  padding-inline: 4px 16px;
}

.top-link {
  margin-top: 24px;
  font-size: 0.92rem;
}

.site-footer {
  padding-block: 28px 48px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer nav {
  margin-bottom: 10px;
}

code {
  padding: 0.12em 0.35em;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--surface);
  font-size: 0.92em;
}

@media (max-width: 680px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 16px;
  }

  .site-nav ul {
    gap: 6px 16px;
  }

  .page {
    padding-top: 26px;
  }

  .hero,
  .document-header {
    border-radius: 18px;
  }
}

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

@media (prefers-color-scheme: dark) {
  :root {
    --background: #10100f;
    --surface: #191918;
    --text: #f3f3ef;
    --muted: #b9b9b1;
    --border: #393936;
    --accent: #ff985c;
    --accent-soft: #2c2019;
    --warning: #ffad6f;
    --warning-soft: #2b2118;
    --focus: #7cc4ff;
    --shadow: 0 14px 38px rgb(0 0 0 / 24%);
  }
}