:root {
  --yellow: #ffcc00;
  --red: #f5bd00;
  --green: #ffcc00;
  --black: #111111;
  --ink: #242424;
  --muted: #676a6f;
  --line: #dedfe2;
  --soft: #f5f5f2;
}

* {
  box-sizing: border-box;
}

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

.wrap {
  width: min(940px, calc(100% - 28px));
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 18px 0;
  border-bottom: 1px solid rgba(17, 17, 17, .08);
  background: rgba(255, 204, 0, .96);
  backdrop-filter: blur(12px);
}

header a {
  color: var(--black);
  font-weight: 900;
  text-decoration: none;
}

main {
  margin: 24px auto 50px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 16px 46px rgba(17, 17, 17, .08);
}

h1,
h2,
h3 {
  color: var(--black);
}

h1 {
  margin: 0 0 12px;
  font-size: 38px;
  line-height: 1.04;
  letter-spacing: -1.2px;
}

h2 {
  margin: 31px 0 9px;
  font-size: 22px;
}

h3 {
  margin: 21px 0 8px;
  font-size: 17px;
}

p,
li,
td,
th {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

ul,
ol {
  padding-left: 22px;
}

a {
  color: #b3261d;
}

.notice {
  margin: 18px 0;
  padding: 15px 17px;
  border-left: 5px solid var(--yellow);
  border-radius: 9px;
  background: #fff8d8;
}

.warning {
  margin: 18px 0;
  padding: 15px 17px;
  border-left: 5px solid var(--red);
  border-radius: 9px;
  background: #fff1ef;
}

.operator {
  display: grid;
  gap: 5px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--soft);
}

.operator strong {
  color: var(--black);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 10px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

footer {
  padding: 0 0 34px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 620px) {
  main {
    padding: 23px 18px;
  }

  h1 {
    font-size: 30px;
  }

  table,
  tbody,
  tr,
  td,
  th {
    display: block;
  }

  th {
    background: var(--soft);
  }
}