.btn-primary {
  background: var(--star);
  color: var(--bg)
}

.btn-primary:hover {
  background: var(--text)
}

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--text)
}

.btn-ghost:hover {
  border-color: var(--star);
  color: var(--star)
}

.rule-item {
  border-top: 1px solid var(--line-strong);
  padding-top: 22px
}

.figure {
  border: 1px solid var(--line);
  border-radius: var(--site-radius-sm);
  background: var(--surface)
}

.chip {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: var(--site-radius-sm);
  font-size: var(--site-fs-small);
  color: var(--text-2);
}

.js .reveal {
  opacity: 0;
  transition: opacity .5s var(--ease)
}

.js .reveal.in {
  opacity: 1
}

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s;
}

.nav.scrolled {
  background: var(--site-veil);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
}

.nav-inner {
  max-width: var(--maxw);
  height: 72px;
  margin: 0 auto;
  padding: 0 var(--site-space-28);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--site-space-24);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  line-height: 1;
  font-size: var(--site-fs-lead);
  font-weight: 700;
  letter-spacing: .04em;
}

.brand .dot-ai,
.cta-domain .dot-ai {
  color: var(--star);
  font-family: var(--font-en);
  line-height: 1
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: var(--site-fs-small);
  color: var(--text-2)
}

.nav-links a {
  position: relative;
  padding: 6px 0;
  line-height: 1;
  text-decoration: none;
  transition: color .2s
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--star);
  transition: width .3s var(--ease);
}

.nav-links a:hover {
  color: var(--text)
}

.nav-links a:focus-visible {
  outline: none
}

.nav-links a:focus-visible::after {
  width: 100%
}

.lang-switch {
  display: flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--site-radius-sm);
  font-family: var(--font-en);
  font-size: var(--site-fs-label);
  font-weight: 500;
}

.lang-switch a {
  padding: 3px var(--site-space-12);
  border-radius: 2px;
  color: var(--text-3);
  white-space: nowrap;
  transition: color .2s
}

.lang-switch a.active {
  background: color-mix(in srgb, var(--star) 18%, transparent);
  color: var(--star)
}

.lang-switch a:not(.active):hover {
  color: var(--text-2)
}

.nav-burger {
  display: none;
  place-items: center;
  width: 42px;
  height: 42px;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--site-radius-sm);
  cursor: pointer;
}

.nav-burger svg {
  width: 20px;
  height: 20px;
  stroke: var(--text)
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  z-index: 99;
  flex-direction: column;
  padding: var(--site-space-16) var(--site-space-28) var(--site-space-24);
  background: color-mix(in srgb, var(--bg) 97%, transparent);
  border-bottom: 1px solid var(--line);
}

.mobile-menu.open {
  display: flex
}

.mobile-menu a {
  padding: var(--site-space-12) var(--site-space-4);
  color: var(--text-2);
  border-bottom: 1px solid var(--line)
}

.mobile-menu a:last-of-type {
  border-bottom: none
}

.mobile-menu a:hover {
  color: var(--text)
}

.mobile-menu .lang-alt {
  color: var(--star)
}

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden
}