:root {
  color-scheme: light;
  --bg: #f8f7f2;
  --ink: #19161f;
  --muted: #5d5967;
  --line: #ded9cc;
  --brand: #4f00ff;
  --accent: #ffe600;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

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

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
}

.nav,
main,
.site-footer {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 20px;
}

.brand {
  color: var(--ink);
  font-size: 1.45rem;
  font-weight: 800;
  text-decoration: none;
}

.brand span {
  color: var(--brand);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

main {
  padding: 56px 0 64px;
}

.eyebrow {
  color: var(--brand);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.05;
  margin: 0;
}

.intro {
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 720px;
  margin: 18px 0 36px;
}

section {
  border-top: 1px solid var(--line);
  padding: 28px 0;
}

h2 {
  font-size: 1.35rem;
  line-height: 1.25;
  margin: 0 0 10px;
}

h3 {
  font-size: 1.06rem;
  margin: 22px 0 8px;
}

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

ul,
ol {
  padding-left: 1.35rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  padding: 26px 0 40px;
}

@media (max-width: 640px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  main {
    padding-top: 40px;
  }
}