:root {
  color-scheme: dark;
  --bg: #07090f;
  --fg: #f5f7fb;
  --muted: #9aa4b8;
  --accent: #60a5fa;
  --gutter: 24px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--gutter);
  background: linear-gradient(180deg, rgb(7 9 15 / 80%), rgb(7 9 15 / 0%));
}

.brand {
  color: var(--fg);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.nav-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--fg);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}