@font-face {
  font-family: "Inter";
  src: url("assets/Inter-Variable.ttf") format("truetype");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --bg: #101116;
  --surface: #191a21;
  --border: #2a2b33;
  --text: #ececf2;
  --muted: #a3a4b3;
  --accent: #c5c0ff;
  --accent-ink: #25226b;
  --radius: 18px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fc;
    --surface: #ffffff;
    --border: #e7e8ef;
    --text: #1b1c24;
    --muted: #5d5f70;
    --accent: #5652b9;
    --accent-ink: #ffffff;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
}

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

.wrap {
  width: min(100% - 32px, 960px);
  margin-inline: auto;
}

header.site {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
}

.brand img { width: 36px; height: 36px; border-radius: 9px; }

nav.site a {
  margin-left: 18px;
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

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

.hero { padding: 72px 0 56px; }

.hero h1 {
  margin: 0 0 16px;
  max-width: 14em;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0 0 28px;
  max-width: 34em;
  color: var(--muted);
  font-size: 1.15rem;
}

.button {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  text-decoration: none;
}

.button[aria-disabled="true"] { opacity: 0.55; cursor: default; }

.note { margin-top: 12px; color: var(--muted); font-size: 0.9rem; }

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
  padding-bottom: 72px;
}

.card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); }

main.page { padding: 48px 0 72px; }

main.page h1 {
  margin: 0 0 8px;
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  letter-spacing: -0.02em;
}

main.page h2 { margin: 40px 0 8px; font-size: 1.3rem; }
main.page h3 { margin: 24px 0 4px; font-size: 1.05rem; }

main.page p,
main.page li { color: var(--muted); }

main.page strong { color: var(--text); }

main.page ul { padding-left: 1.2em; }

.meta { color: var(--muted); font-size: 0.95rem; }

footer.site {
  padding: 28px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
}

footer.site a { margin-right: 16px; }

@media (max-width: 520px) {
  nav.site a { margin-left: 12px; }
  .hero { padding: 48px 0 40px; }
}