:root {
  color-scheme: dark;
  --bg: #06101c;
  --surface: #0b1928;
  --surface-2: #102337;
  --border: #213b52;
  --text: #eef7fb;
  --muted: #9fb5c4;
  --accent: #34d6c7;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at 50% -20%, #153b56 0, var(--bg) 42rem);
  color: var(--text);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; }
.shell { width: min(calc(100% - 32px), var(--max)); margin: auto; }

.site-header {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 760; text-decoration: none; }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid #2b5968;
  border-radius: 11px;
  background: linear-gradient(145deg, #14344a, #091623);
  color: var(--accent);
  font: 750 12px/1 ui-monospace, monospace;
  box-shadow: inset 0 1px rgba(255,255,255,.07), 0 10px 30px rgba(0,0,0,.22);
}
nav { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
nav a { color: var(--muted); padding: 7px 11px; border-radius: 8px; text-decoration: none; font-size: 14px; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); background: var(--surface-2); }

main { padding: 72px 0; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: .15em; font: 700 12px/1.4 ui-monospace, monospace; }
h1, h2 { line-height: 1.12; letter-spacing: -.035em; margin: 0; }
h1 { max-width: 780px; font-size: clamp(44px, 6vw, 72px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
p { color: var(--muted); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
  gap: clamp(36px, 7vw, 90px);
  align-items: center;
  min-height: 560px;
}
.hero h1 { margin: 20px 0 24px; }
.hero .lede { color: var(--text); font-size: clamp(19px, 2.4vw, 26px); line-height: 1.5; max-width: 750px; }
.hero p { max-width: 700px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
}
.button:hover { border-color: var(--accent); }
.button.primary { background: var(--accent); color: #032522; border-color: var(--accent); }

.signal-card {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  border: 1px solid #24536a;
  border-radius: 24px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(160deg, rgba(29,73,95,.66), rgba(7,20,32,.96));
  box-shadow: 0 30px 90px rgba(0,0,0,.3);
}
.signal-card::after {
  content: "";
  position: absolute;
  inset: 50px -20px 105px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 500 220'%3E%3Cpath d='M0 170 C50 150 70 183 115 130 S180 170 220 105 S290 110 330 65 S405 115 500 25' fill='none' stroke='%2334d6c7' stroke-width='4'/%3E%3Cpath d='M0 170 C50 150 70 183 115 130 S180 170 220 105 S290 110 330 65 S405 115 500 25 V220 H0Z' fill='%2334d6c7' opacity='.08'/%3E%3C/svg%3E") center/cover no-repeat;
}
.signal-grid { position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px); background-size: 48px 48px; }
.signal-card span, .signal-card strong, .signal-card small { position: relative; z-index: 1; }
.signal-card span { color: var(--accent); font: 650 12px ui-monospace, monospace; letter-spacing: .08em; }
.signal-card strong { font-size: 30px; }
.signal-card small { color: var(--muted); margin-top: 10px; }

.platform-card {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 28px;
  margin: 60px 0;
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--surface);
}
.platform-icon { display: grid; place-items: center; width: 72px; height: 72px; border-radius: 20px; background: var(--surface-2); color: var(--accent); font-size: 34px; }
.platform-card p { max-width: 760px; }
.bundle { display: flex; flex-wrap: wrap; gap: 8px; }
code { padding: 5px 9px; border: 1px solid var(--border); border-radius: 7px; color: #b9dcf4; background: #07121f; font-size: 12px; }

.link-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.link-card { position: relative; min-height: 220px; padding: 28px; border: 1px solid var(--border); border-radius: 18px; background: var(--surface); text-decoration: none; transition: transform .2s, border-color .2s; }
.link-card:hover { transform: translateY(-3px); border-color: #3f7189; }
.link-card span { display: block; color: var(--accent); font: 650 11px ui-monospace, monospace; text-transform: uppercase; letter-spacing: .12em; }
.link-card strong { display: block; margin-top: 18px; font-size: 23px; }
.link-card b { position: absolute; top: 24px; inset-inline-end: 26px; color: var(--muted); }
.home-language { margin-top: 46px; }

.document-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; margin: 18px 0 34px; }
.document-heading h1 { font-size: clamp(42px, 6vw, 70px); }
.document-heading p { font-size: 20px; }
.language { position: relative; min-width: 170px; }
.language summary { cursor: pointer; padding: 9px 12px; border: 1px solid var(--border); border-radius: 9px; color: var(--muted); font-size: 13px; list-style: none; }
.language summary::-webkit-details-marker { display: none; }
.language div {
  position: absolute;
  z-index: 10;
  inset-inline-end: 0;
  width: 210px;
  max-height: min(70vh, 520px);
  margin-top: 8px;
  padding: 6px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 20px 70px rgba(0,0,0,.4);
}
.language a { display: block; padding: 8px 10px; border-radius: 7px; text-decoration: none; color: var(--muted); }
.language a:hover, .language a[aria-current="true"] { color: var(--text); background: var(--surface-2); }
.scope { display: flex; flex-wrap: wrap; gap: 8px 20px; padding: 18px 0 34px; border-bottom: 1px solid var(--border); color: var(--muted); font: 12px/1.6 ui-monospace, monospace; }
.policy-section { display: grid; grid-template-columns: 70px minmax(0, 760px); gap: 20px; padding: 42px 0; border-bottom: 1px solid var(--border); }
.section-number { color: #53748b; font: 650 13px ui-monospace, monospace; }
.policy-section p, .policy-section li { color: #b5c5cf; }
.policy-section ul { padding-inline-start: 20px; }
.policy-section li { margin: 7px 0; }
footer { display: flex; justify-content: space-between; gap: 25px; margin-top: 30px; padding: 28px 0 46px; border-top: 1px solid var(--border); font-size: 13px; }
footer p { margin: 0; }

[dir="rtl"] body { font-family: "Segoe UI", Tahoma, Arial, sans-serif; }
[dir="rtl"] h1, [dir="rtl"] h2 { letter-spacing: 0; }
[dir="rtl"] .eyebrow, [dir="rtl"] .link-card span {
  text-transform: none;
  letter-spacing: 0;
  font-family: inherit;
}
[dir="rtl"] code, [dir="rtl"] .section-number, [dir="rtl"] .signal-card span,
[dir="rtl"] .signal-card strong {
  direction: ltr;
  unicode-bidi: isolate;
}

.language-landing { width: min(720px, calc(100% - 32px)); min-height: 100vh; margin: auto; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; }
.language-landing h1 { margin: 24px 0 5px; }
.language-landing div:last-child { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 24px; }
.language-landing div:last-child a { padding: 9px 14px; border: 1px solid var(--border); border-radius: 9px; text-decoration: none; }

@media (max-width: 800px) {
  .site-header { align-items: flex-start; padding: 18px 0; }
  nav { max-width: 70%; }
  .hero { grid-template-columns: 1fr; padding-top: 35px; }
  .signal-card { min-height: 320px; }
  .document-heading { display: block; }
  .document-heading .language { margin-top: 25px; }
  .language div { inset-inline-start: 0; inset-inline-end: auto; }
}
@media (max-width: 560px) {
  .shell { width: min(calc(100% - 22px), var(--max)); }
  .site-header { display: block; }
  nav { max-width: none; justify-content: flex-start; margin-top: 14px; }
  nav a { padding: 6px 7px; }
  main { padding: 48px 0; }
  .platform-card { grid-template-columns: 1fr; }
  .link-grid { grid-template-columns: 1fr; }
  .policy-section { grid-template-columns: 36px minmax(0, 1fr); gap: 10px; }
  footer { display: block; }
}
@media print {
  :root { color-scheme: light; --bg: white; --surface: #f5f7f8; --surface-2: #edf2f4; --border: #ccd5da; --text: #101820; --muted: #52616a; }
  body { background: white; }
  .site-header, .language, .actions { display: none; }
  main { padding-top: 20px; }
  .policy-section { break-inside: avoid; }
}