@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap');
:root {
  --bg: #0f172a;
  --paper: #1e293b;
  --ink: #f8fafc;
  --muted: #94a3b8;
  --line: #334155;
  --primary: #38bdf8;
  --primary-hover: #7dd3fc;
  --accent: #10b981;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'DM Sans', 'Noto Sans KR', sans-serif;
  font-size: 15px;
  line-height: 1.7;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--paper);
  color: var(--ink);
  padding: 8px 12px;
  z-index: 5;
  border-radius: 6px;
}
.skip-link:focus { left: 8px; }
.wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}
.top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.top-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.top-portal-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.top-portal-link:hover {
  color: var(--ink);
}
.lang-switch { position: relative; }
.lang-switch-button {
  border: 1px solid var(--line);
  background: var(--paper);
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  font-size: 12px;
  color: var(--ink);
  cursor: pointer;
}
.lang-switch-button:hover {
  border-color: var(--muted);
}
.lang-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 20;
  min-width: 130px;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}
.lang-menu[hidden] { display: none; }
.lang-menu a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--ink);
  font-weight: 500;
  font-size: 13px;
}
.lang-menu a:hover {
  background: rgba(255, 255, 255, 0.05);
}
.lang-menu a[aria-selected="true"] {
  background: rgba(56, 189, 248, 0.15);
  color: var(--primary);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}
.brand svg {
  width: 22px;
  height: 22px;
}
.brand span { color: var(--accent); }
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin-top: 16px;
  font-size: 13.5px;
}
.nav a {
  color: var(--muted);
  font-weight: 500;
  text-underline-offset: 4px;
}
.nav a:hover {
  color: var(--ink);
}
.nav a[aria-current="page"] {
  color: var(--primary);
  font-weight: 600;
}
.kicker {
  margin: 36px 0 8px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}
h1 {
  font-size: 32px;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  color: #ffffff;
}
.lead {
  font-size: 17px;
  color: #cbd5e1;
  margin: 0 0 8px;
}
.updated {
  color: var(--muted);
  font-size: 12.5px;
  margin-bottom: 28px;
}
h2 {
  font-size: 21px;
  letter-spacing: -0.02em;
  margin: 36px 0 12px;
  color: #f1f5f9;
}
h3 {
  font-size: 16px;
  margin: 22px 0 8px;
  color: #e2e8f0;
}
p, li { color: #cbd5e1; }
ul, ol { padding-left: 1.25em; }
li + li { margin-top: 6px; }
.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 20px;
  margin: 18px 0;
}
.steps {
  display: grid;
  gap: 14px;
  margin: 20px 0;
}
.step {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
}
.step span {
  display: block;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
  font-size: 14px;
}
th, td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  padding: 12px 10px;
}
th {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 18px 0;
}
code {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.9em;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 5px;
  border-radius: 4px;
}
.footer {
  margin-top: 50px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin: 8px 0 12px;
}
.footer nav a {
  color: var(--muted);
}
.footer nav a:hover {
  color: var(--ink);
}
@media (max-width: 640px) {
  h1 { font-size: 26px; }
  .lead { font-size: 15.5px; }
  .wrap { padding: 20px 16px 48px; }
}