:root {
  color-scheme: light;
  --paper: #f5efe3;
  --paper-raised: #fffaf1;
  --ink: #1e2825;
  --ink-muted: #5f6a64;
  --jade: #2f6157;
  --jade-pale: #dbe7df;
  --cinnabar: #ad4939;
  --line: rgba(42, 65, 58, 0.18);
  --shadow: 0 24px 80px rgba(53, 44, 31, 0.09);
}

* { box-sizing: border-box; }

html {
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Iowan Old Style", "Noto Serif KR", "Nanum Myeongjo", Georgia, serif;
  line-height: 1.75;
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 252, 237, 0.96), transparent 30rem),
    radial-gradient(circle at 88% 20%, rgba(194, 216, 202, 0.35), transparent 26rem),
    linear-gradient(135deg, rgba(173, 73, 57, 0.035) 0 1px, transparent 1px 10px),
    var(--paper);
}

a { color: var(--jade); text-underline-offset: 0.22em; }
a:hover { color: var(--cinnabar); }
a:focus-visible { outline: 3px solid rgba(173, 73, 57, 0.38); outline-offset: 4px; border-radius: 3px; }

.shell {
  width: min(100% - 32px, 840px);
  margin: 0 auto;
  padding: 24px 0 72px;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.03em;
}

.seal {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--paper-raised);
  background: var(--cinnabar);
  border-radius: 8px 4px 9px 5px;
  font-size: 18px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28);
}

.nav { display: flex; flex-wrap: wrap; gap: 18px; font-size: 14px; }
.nav a { color: var(--ink-muted); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--jade); font-weight: 800; }

.hero { padding: 68px 0 32px; }
.eyebrow { margin: 0 0 12px; color: var(--cinnabar); font-size: 13px; font-weight: 800; letter-spacing: 0.12em; }
h1, h2, h3 { line-height: 1.24; letter-spacing: -0.045em; }
h1 { max-width: 13ch; margin: 0; font-size: clamp(38px, 9vw, 72px); }
.lede { max-width: 43rem; margin: 24px 0 0; color: var(--ink-muted); font-size: clamp(17px, 2.2vw, 21px); }

.summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  margin: 22px 0 44px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.summary > * { margin: 0; padding: 20px; background: rgba(255, 250, 241, 0.86); }
.summary strong { display: block; margin-bottom: 4px; color: var(--jade); font-size: 14px; }
.summary span { color: var(--ink-muted); font-size: 14px; }

.document {
  padding: clamp(24px, 5vw, 52px);
  background: rgba(255, 250, 241, 0.9);
  border: 1px solid rgba(42, 65, 58, 0.14);
  border-radius: 24px 24px 8px 24px;
  box-shadow: var(--shadow);
}

.toc { margin: 0 0 40px; padding: 0 0 28px; border-bottom: 1px solid var(--line); }
.toc strong { display: block; margin-bottom: 10px; }
.toc ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 28px; margin: 0; padding-left: 1.2rem; }
.toc a { color: var(--ink-muted); }

section + section { margin-top: 46px; }
h2 { margin: 0 0 16px; font-size: clamp(23px, 4vw, 30px); }
h3 { margin: 24px 0 8px; font-size: 18px; }
p, li { color: var(--ink-muted); }
ul { padding-left: 1.2rem; }
.plain-list { display: grid; gap: 12px; padding: 0; list-style: none; }
.plain-list li { padding: 16px 18px; background: rgba(219, 231, 223, 0.42); border-left: 3px solid var(--jade); border-radius: 3px 12px 12px 3px; }

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 42px;
  padding: 22px;
  background: var(--jade);
  color: var(--paper-raised);
  border-radius: 6px 18px 18px 18px;
}
.contact p { margin: 0; color: rgba(255, 250, 241, 0.78); }
.contact a { flex: 0 0 auto; padding: 11px 16px; color: var(--jade); background: var(--paper-raised); border-radius: 999px; font-weight: 800; text-decoration: none; }

.status-note { padding: 16px 18px; background: rgba(173, 73, 57, 0.08); border: 1px solid rgba(173, 73, 57, 0.18); border-radius: 14px; }
.meta { margin-top: 38px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink-muted); font-size: 13px; }
footer { padding: 28px 4px 0; color: var(--ink-muted); font-size: 13px; }

@media (max-width: 640px) {
  .shell { width: min(100% - 24px, 840px); padding-top: 10px; }
  .masthead { align-items: flex-start; flex-direction: column; padding: 12px 2px 16px; }
  .hero { padding-top: 44px; }
  .summary { grid-template-columns: 1fr; }
  .toc ol { grid-template-columns: 1fr; }
  .contact { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media print {
  body { background: white; }
  .shell { width: 100%; padding: 0; }
  .masthead, .contact, footer { display: none; }
  .document { border: 0; box-shadow: none; padding: 0; }
}