:root {
  color-scheme: dark;
  --background: #050505;
  --surface: #0d0d0d;
  --surface-raised: #15110d;
  --text: #f7f4ef;
  --muted: #aaa39a;
  --border: #33271c;
  --accent: #ff7a00;
  --accent-dark: #6c2f00;
  --max-width: 980px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 5%, rgba(255, 122, 0, 0.11), transparent 34rem),
    var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

.site-header,
.site-footer,
main {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 850;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255, 122, 0, 0.7);
  border-radius: 14px;
  background: linear-gradient(145deg, var(--accent), var(--accent-dark));
  color: #130900;
  font-size: 13px;
  font-weight: 950;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.top-nav a,
.language-links a {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 13px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

.top-nav a:hover,
.top-nav a:focus-visible,
.language-links a:hover,
.language-links a:focus-visible {
  border-color: var(--accent);
  color: var(--text);
}

.hero {
  padding: clamp(64px, 11vw, 128px) 0 80px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(44px, 9vw, 86px);
  line-height: 1.03;
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(27px, 4vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.lead {
  max-width: 700px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: clamp(17px, 2.5vw, 21px);
}

.button-row,
.language-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 10px 20px;
  background: var(--accent);
  color: #170a00;
  text-decoration: none;
  font-weight: 850;
}

.button.secondary {
  border-color: var(--border);
  background: transparent;
  color: var(--text);
}

.button:hover,
.button:focus-visible {
  filter: brightness(1.12);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0 0 72px;
}

.card,
.document-section {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(13, 13, 13, 0.9);
}

.card {
  padding: 24px;
}

.card p,
.document-section p,
.document-section li {
  color: var(--muted);
}

.card-link {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.document-header {
  padding: 58px 0 34px;
}

.document-header h1 {
  margin-bottom: 12px;
  font-size: clamp(38px, 7vw, 68px);
}

.document-section {
  margin-bottom: 20px;
  padding: clamp(22px, 4vw, 38px);
  scroll-margin-top: 20px;
}

.document-section ul {
  margin-bottom: 0;
  padding-left: 22px;
}

.contact-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 36px 0 72px;
  border: 1px solid rgba(255, 122, 0, 0.55);
  border-radius: 24px;
  padding: 24px;
  background: var(--surface-raised);
}

.contact-box p {
  margin: 0;
  color: var(--muted);
}

.contact-box a {
  color: var(--accent);
  font-weight: 850;
  overflow-wrap: anywhere;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--border);
  padding: 28px 0 42px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer a {
  color: var(--muted);
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
  }

  .top-nav {
    display: none;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }
}