:root {
  color-scheme: light;
  --bg: #f5f7fc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #66748a;
  --primary: #3857ff;
  --accent: #09b8d8;
  --border: #dde6ff;
  --soft: #eef3ff;
  --shadow: 0 24px 70px rgba(35, 53, 94, 0.08);
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: linear-gradient(180deg, #f8faff 0%, #f4f7fc 100%);
  font-family: var(--font-sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 16px 42px rgba(35, 53, 94, 0.07);
}

.card {
  border-color: var(--border);
  border-radius: 12px;
  box-shadow: 0 12px 28px rgba(35, 53, 94, 0.05);
}

h1,
h2,
h3 {
  color: var(--text);
  letter-spacing: 0;
}

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

footer {
  color: var(--muted);
}

footer a {
  color: var(--muted);
}

footer a:hover {
  color: var(--primary);
}