:root {
  --ink: #14222b;
  --teal: #0f5f5c;
  --paper: #f3efe6;
  --card: #fffdf8;
  --line: #d7d0c4;
  --warn: #8c3a2f;
  --mark: #f3d48a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "Noto Sans", sans-serif;
  color: var(--ink);
  background: var(--paper);
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  background: var(--ink);
  color: #f7f3ea;
}
header a { color: #f7f3ea; margin-right: 14px; text-decoration: none; }
header strong { letter-spacing: 0.04em; }
main { max-width: 980px; margin: 28px auto; padding: 0 20px 48px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 18px 20px;
  margin-bottom: 16px;
}
h1 { font-family: Georgia, "Iowan Old Style", serif; font-weight: 500; font-size: 32px; }
label { display: block; margin: 10px 0 4px; font-size: 13px; }
input, textarea, select, button {
  font: inherit;
}
textarea, input[type="text"], input[type="password"], input[type="email"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  background: white;
}
textarea { min-height: 160px; }
button, .button {
  background: var(--teal);
  color: white;
  border: 0;
  padding: 8px 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.muted { color: #5c564c; font-size: 13px; }
mark { background: var(--mark); padding: 0 2px; }
table { width: 100%; border-collapse: collapse; }
td, th { text-align: left; border-bottom: 1px solid var(--line); padding: 6px 4px; font-size: 14px; }
.error { color: var(--warn); }
pre { white-space: pre-wrap; word-break: break-word; }