:root {
  --bg: #0b0d10;
  --card: #16191d;
  --text: #f4f5f7;
  --muted: #9aa1ab;
  --accent: #fe4c6c;
  --border: #23282f;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header, footer {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 20px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

header .brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

header nav a {
  margin-left: 20px;
  color: var(--muted);
  font-size: 14px;
}

main {
  max-width: 780px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

main h1 {
  font-size: 32px;
  font-weight: 700;
  margin: 0 0 12px;
}

main h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 40px 0 12px;
  color: var(--text);
}

main p, main li { color: var(--text); }
main .muted { color: var(--muted); font-size: 14px; }

.lang-switch {
  display: inline-flex;
  gap: 8px;
  background: var(--card);
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--border);
  margin: 12px 0 24px;
}
.lang-switch a {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
}
.lang-switch a.active {
  background: var(--accent);
  color: #fff;
}

.section {
  display: none;
}
.section:target,
.section.default {
  display: block;
}
:target ~ .section.default {
  display: none;
}

footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
footer a { color: var(--muted); margin-left: 16px; }

.hero {
  padding: 60px 20px 80px;
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}
.hero h1 {
  font-size: 44px;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  max-width: 780px;
  margin: 0 auto 60px;
  padding: 0 20px;
}
.feature {
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.feature h3 { margin: 0 0 6px; font-size: 16px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }