:root {
  color-scheme: dark;
  --bg: #080b12;
  --panel: rgba(16, 22, 35, 0.82);
  --text: #f6f8ff;
  --muted: #aeb8ce;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #bda7ff;
  --accent-strong: #7fd7ff;
  --shadow: 0 22px 64px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 16% 18%, rgba(127, 215, 255, 0.2), transparent 26rem),
    radial-gradient(circle at 84% 16%, rgba(189, 167, 255, 0.18), transparent 24rem),
    linear-gradient(145deg, #080b12 0%, #101623 52%, #090d16 100%);
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: clamp(38px, 8vw, 56px) clamp(38px, 8vw, 56px);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent);
}

.shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: clamp(18px, 5vw, 34px);
}

.card {
  width: min(100%, 620px);
  padding: clamp(22px, 5vw, 38px);
  border: 1px solid var(--line);
  border-radius: clamp(22px, 5vw, 30px);
  background: linear-gradient(145deg, var(--panel), rgba(10, 14, 23, 0.78));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card.wide {
  width: min(100%, 680px);
}

.back {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: clamp(0.84rem, 2.5vw, 0.92rem);
  text-decoration: none;
}

.back:hover,
.back:focus-visible {
  color: var(--accent-strong);
  outline: none;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  font-size: clamp(0.72rem, 2.2vw, 0.78rem);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.35rem, 10vw, 4.6rem);
  line-height: 0.96;
  letter-spacing: -0.08em;
}

h1 span {
  display: block;
  margin-top: 8px;
  color: var(--accent);
  font-size: clamp(1.65rem, 6.5vw, 3rem);
  letter-spacing: -0.06em;
}

.lead {
  max-width: 34rem;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 3.4vw, 1.16rem);
  line-height: 1.65;
}

.intro-copy {
  display: grid;
  gap: clamp(11px, 2.4vw, 15px);
  margin-top: clamp(24px, 6vw, 30px);
  color: var(--text);
  font-size: clamp(0.98rem, 3vw, 1.08rem);
  line-height: 1.82;
}

.intro-copy p {
  margin: 0;
}

.language-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: clamp(24px, 6vw, 30px);
}

.language-card {
  display: flex;
  min-height: 78px;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.language-card:hover,
.language-card:focus-visible {
  border-color: rgba(127, 215, 255, 0.55);
  background: rgba(127, 215, 255, 0.1);
  outline: none;
  transform: translateY(-2px);
}

.language-card span {
  font-size: clamp(1rem, 3vw, 1.08rem);
  font-weight: 760;
}

.language-card small {
  color: var(--muted);
  font-size: clamp(0.82rem, 2.6vw, 0.9rem);
  line-height: 1.45;
}

.quick-links,
.language-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 5vw, 28px);
}

.icon-link,
.more-link,
.language-switcher a {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.045);
  font-size: clamp(0.82rem, 2.5vw, 0.9rem);
  font-weight: 650;
  text-decoration: none;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.icon-link {
  width: 38px;
  border-radius: 999px;
}

.more-link,
.language-switcher a {
  padding: 8px 12px;
  border-radius: 999px;
}

.language-switcher a[aria-current="page"] {
  color: var(--text);
  border-color: rgba(127, 215, 255, 0.55);
  background: rgba(127, 215, 255, 0.1);
}

.icon-link:hover,
.icon-link:focus-visible,
.more-link:hover,
.more-link:focus-visible,
.language-switcher a:hover,
.language-switcher a:focus-visible {
  color: var(--accent-strong);
  border-color: rgba(127, 215, 255, 0.55);
  background: rgba(127, 215, 255, 0.1);
  outline: none;
}

@media (max-width: 520px) {
  .language-grid {
    grid-template-columns: 1fr;
  }

  .language-card {
    min-height: 66px;
  }
}