:root {
  color-scheme: light;
  --ink: #18211f;
  --muted: #63706c;
  --line: #e0e0e0;
  --surface: #ffffff;
  --background: #f4f4f5;
  --accent: #EF7204;
  --accent-dark: #C45D03;
}

* { box-sizing: border-box; }

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

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

.site-header {
  background: #C45D03;
  color: white;
  padding: 22px 24px;
}

.header-inner, main { max-width: 920px; margin: 0 auto; }

.brand {
  color: white;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: .02em;
}

nav { float: right; }
nav a { color: #FFF1E8; margin-left: 20px; text-decoration: none; font-size: .95rem; }
nav a:hover { text-decoration: underline; }

main { padding: 56px 24px 80px; }
.document, .card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 8px 28px rgba(24, 51, 39, .06);
}

.document { padding: 48px clamp(24px, 6vw, 68px); }
.card { padding: 28px; }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 32px; }

h1, h2, h3 { color: #141414; line-height: 1.25; }
h1 { font-size: clamp(1.8rem, 4vw, 2.55rem); margin: 0 0 12px; }
h2 { font-size: 1.3rem; margin: 34px 0 10px; }
h3 { font-size: 1.05rem; margin: 24px 0 8px; }
p { margin: 12px 0; }
ul { padding-left: 24px; }
.meta { color: var(--muted); margin-bottom: 30px; }
.notice { border-left: 4px solid #d99b37; padding: 10px 16px; background: #fff9ed; }
footer { max-width: 920px; margin: 0 auto; padding: 0 24px 36px; color: var(--muted); font-size: .9rem; }

@media (max-width: 640px) {
  .site-header { padding: 18px; }
  nav { float: none; margin-top: 12px; }
  nav a { margin: 0 16px 0 0; }
  main { padding: 28px 14px 52px; }
  .document { padding: 30px 20px; }
  .cards { grid-template-columns: 1fr; }
}