:root {
  color: #342d3c;
  background: #bde9e2;
  font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  padding: 28px 20px;
  background-color: #bde9e2;
  background-image:
    linear-gradient(90deg, rgb(255 255 255 / 4%) 1px, transparent 1px),
    linear-gradient(rgb(0 0 0 / 4%) 1px, transparent 1px);
  background-size: 4px 4px;
}

a { color: #5145ad; }

.page-shell {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 3px;
  border: 2px solid;
  border-color: #fffefe #202020 #202020 #fffefe;
  background: #eeeaf1;
  box-shadow: 10px 12px 0 rgb(92 73 110 / 20%);
}

.titlebar {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 6px 10px;
  color: #fff;
  background: #766bd1;
}

.titlebar::before {
  width: 20px;
  height: 20px;
  border: 2px solid #fff;
  background: linear-gradient(90deg, #ed91b7 50%, #ffd7cc 50%);
  box-shadow: inset 0 0 0 3px #766bd1;
  content: "";
}

.titlebar strong { font-size: 17px; }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 7px 8px;
  border-bottom: 2px solid #746b7d;
  background: #ded8e3;
}

.site-nav a {
  padding: 7px 10px;
  border: 1px solid;
  border-color: #fff #756d7d #756d7d #fff;
  color: #4f4560;
  background: #f5f1f7;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: #fff;
  background: #766bd1;
}

main {
  margin: 14px;
  padding: clamp(20px, 5vw, 46px);
  border: 2px solid;
  border-color: #746b7d #fff #fff #746b7d;
  background: #fffefb;
}

.eyebrow {
  margin: 0 0 8px;
  color: #6b5fbe;
  font-family: Consolas, monospace;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
}

h1 {
  margin: 0;
  color: #342d3c;
  font-size: clamp(28px, 6vw, 42px);
  line-height: 1.25;
  word-break: keep-all;
}

.lead {
  max-width: 65ch;
  margin: 18px 0 0;
  color: #554c5c;
  font-size: 17px;
  font-weight: 620;
  line-height: 1.85;
}

.updated {
  margin: 12px 0 0;
  color: #786e7e;
  font-size: 12px;
}

.summary-box {
  margin: 28px 0;
  padding: 18px 20px;
  border-left: 7px solid #ed91b7;
  background: #fff3f8;
}

.summary-box p { margin: 0; }

h2 {
  margin: 40px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid #d9d0dd;
  color: #403650;
  font-size: 23px;
}

h3 {
  margin: 24px 0 8px;
  color: #4d4260;
  font-size: 17px;
}

p, li, dd {
  color: #5d5464;
  font-size: 15px;
  line-height: 1.8;
}

ul, ol { padding-left: 24px; }

li + li { margin-top: 8px; }

.steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 0;
  counter-reset: guide-step;
  list-style: none;
}

.steps li {
  padding: 18px;
  border: 1px solid #dacdde;
  background: #fff;
  box-shadow: 2px 2px 0 #c0b4bd;
  counter-increment: guide-step;
}

.steps li::before {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 7px;
  color: #fff;
  background: #766bd1;
  font-family: Consolas, monospace;
  font-size: 11px;
  font-weight: 900;
  content: "0" counter(guide-step);
}

.steps strong { display: block; margin-bottom: 6px; color: #403650; }

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  font-size: 14px;
}

th, td {
  padding: 12px;
  border: 1px solid #cfc3d3;
  line-height: 1.65;
  text-align: left;
  vertical-align: top;
}

th { color: #fff; background: #665bbd; }

.callout {
  margin: 22px 0;
  padding: 18px;
  border: 2px solid;
  border-color: #f5ffca #596c0b #596c0b #f5ffca;
  background: #eaf5b9;
}

.callout strong { color: #3e470d; }

details {
  margin: 8px 0;
  border: 1px solid #d5cad8;
  background: #fff;
}

summary {
  padding: 14px 16px;
  color: #443952;
  cursor: pointer;
  font-weight: 800;
}

details p { margin: 0; padding: 0 16px 16px; }

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 36px;
}

.page-actions a {
  padding: 11px 15px;
  border: 2px solid;
  border-color: #aaa1ee #332973 #332973 #aaa1ee;
  color: #fff;
  background: #766bd1;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 1px 1px 0 #000;
}

.page-actions a.secondary {
  border-color: #fff #746b7d #746b7d #fff;
  color: #4b4154;
  background: #eeeaf1;
}

.page-footer {
  padding: 12px 16px 16px;
  color: #5f5568;
  font-size: 12px;
  line-height: 1.7;
  text-align: center;
}

.page-footer p { margin: 2px 0; font-size: 12px; }

@media (max-width: 680px) {
  body { padding: 4px; }
  .page-shell { box-shadow: 3px 4px 0 rgb(0 0 0 / 24%); }
  main { margin: 8px; padding: 22px 16px; }
  .lead { font-size: 15px; }
  .steps { grid-template-columns: 1fr; }
  .table-wrap { overflow-x: auto; }
  table { min-width: 640px; }
}