:root {
  --ink: #263238;
  --muted: #667278;
  --paper: #fffdf8;
  --sand: #ead0a9;
  --wood: #99643a;
  --line: #dec6a6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: #f7f2e9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

.shell { max-width: 900px; margin: 0 auto; padding: 24px; }

header {
  background: linear-gradient(135deg, #e7c59b, #c99564);
  border-bottom: 5px solid var(--wood);
}

.brand { display: flex; align-items: center; gap: 13px; color: #1f292d; text-decoration: none; }
.stone { width: 31px; height: 31px; border-radius: 50%; background: #222; box-shadow: inset 3px 3px 5px #596166, 2px 3px 3px #7c5131; }
.brand strong { font-size: 1.55rem; letter-spacing: -.04em; }

nav { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 17px; }
nav a { color: #243136; font-weight: 650; text-decoration: none; }
nav a:hover, nav a:focus { text-decoration: underline; }

main { min-height: 65vh; }
article {
  margin: 32px 0;
  padding: clamp(24px, 5vw, 52px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(68, 48, 28, .08);
}

h1 { margin: 0 0 16px; font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.1; }
h2 { margin-top: 35px; font-size: 1.35rem; }
.lead { font-size: 1.2rem; color: #435257; }
.button { display: inline-block; margin-top: 8px; padding: 11px 17px; border-radius: 9px; background: var(--wood); color: white; font-weight: 700; text-decoration: none; }
.card { margin: 20px 0; padding: 19px 21px; border-left: 4px solid var(--wood); background: #fbf2e3; }
li + li { margin-top: 7px; }
a { color: #75431f; }
footer { padding: 8px 0 35px; color: var(--muted); font-size: .92rem; }

@media (max-width: 520px) {
  .shell { padding: 17px; }
  nav { gap: 13px; }
  article { margin: 19px 0; border-radius: 13px; }
}