:root {
  --bg: #FAF7F2;
  --surface: #FFFFFF;
  --ink: #1F1B16;
  --muted: #6F665C;
  --border: #ECE5DB;
  --accent: #B8511C;
  --accent-soft: #F6E3D4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151311;
    --surface: #221F1C;
    --ink: #F4EFE8;
    --muted: #A39A90;
    --border: #35302B;
    --accent: #E0793F;
    --accent-soft: #3A2518;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Nunito Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

header.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  text-decoration: none;
  color: var(--ink);
}

header.brand .mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

header.brand .name {
  font-family: Nunito, sans-serif;
  font-weight: 900;
  font-size: 22px;
}

h1, h2 {
  font-family: Nunito, sans-serif;
  line-height: 1.2;
}

h1 { font-size: 32px; font-weight: 900; margin: 0 0 6px; }
h2 { font-size: 20px; font-weight: 800; margin: 32px 0 8px; }

p, li { color: var(--ink); }
.muted { color: var(--muted); font-size: 15px; }

a { color: var(--accent); }

.langs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 8px;
}

.langs button {
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  min-height: 36px;
}

.langs button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px 22px;
  margin-top: 16px;
}

section[lang] { display: none; }
section[lang].active { display: block; }

footer {
  margin-top: 48px;
  font-size: 14px;
  color: var(--muted);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}