:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5f6878;
  --line: #dfe3eb;
  --paper: #ffffff;
  --soft: #f5f7fb;
  --accent: #e55342;
  --accent-dark: #b93428;
  --navy: #1f2a44;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--soft);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 95% 5%, rgba(229, 83, 66, 0.11), transparent 24rem),
    var(--soft);
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(229, 83, 66, 0.45);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-header,
main,
footer {
  width: min(100% - 40px, 1040px);
  margin-inline: auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgba(31, 42, 68, 0.12);
}

.brand {
  color: var(--navy);
  font-size: 1.25rem;
  font-weight: 850;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.site-header nav,
footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.site-header nav a,
footer a {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
}

.site-header nav a:hover,
.site-header nav a[aria-current="page"],
footer a:hover {
  color: var(--accent-dark);
}

main {
  padding-block: clamp(56px, 9vw, 112px);
}

.hero {
  max-width: 760px;
  padding-block: clamp(28px, 4vw, 56px);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  color: var(--navy);
  line-height: 1.3;
  letter-spacing: -0.035em;
}

h1 {
  margin: 0;
  font-size: clamp(2.6rem, 9vw, 5.8rem);
  font-weight: 900;
}

.document h1 {
  font-size: clamp(2.2rem, 7vw, 4.6rem);
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
}

p,
li {
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.lead {
  max-width: 700px;
  margin: 24px 0 0;
  color: #3d4658;
  font-size: clamp(1.08rem, 2.5vw, 1.3rem);
  line-height: 1.75;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  min-height: 290px;
  padding: clamp(28px, 5vw, 46px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 60px rgba(31, 42, 68, 0.08);
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(229, 83, 66, 0.5);
}

.card-number {
  display: inline-block;
  margin-bottom: 42px;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.card-link {
  display: inline-block;
  margin-top: 28px;
  color: var(--accent-dark);
  font-weight: 800;
}

.document {
  max-width: 820px;
}

.document-header {
  padding-bottom: clamp(44px, 8vw, 80px);
  border-bottom: 2px solid var(--navy);
}

.effective-date {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

article > section {
  padding-block: clamp(34px, 6vw, 54px);
  border-bottom: 1px solid var(--line);
}

article p {
  margin: 0 0 16px;
}

article p:last-child {
  margin-bottom: 0;
}

ul,
ol {
  margin: 16px 0 0;
  padding-left: 1.4em;
}

li + li {
  margin-top: 10px;
}

.contact-panel {
  margin-top: 44px;
  padding: clamp(28px, 5vw, 42px);
  border: 1px solid rgba(229, 83, 66, 0.3);
  border-radius: 20px;
  background: #fff7f5;
}

.faq-list {
  border-top: 1px solid var(--line);
}

details {
  border-bottom: 1px solid var(--line);
}

summary {
  cursor: pointer;
  padding: 22px 0;
  color: var(--navy);
  font-size: 1.08rem;
  font-weight: 800;
}

details > p,
details > div {
  margin: -4px 0 24px;
  color: var(--muted);
}

.related-links {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 48px;
}

.related-links a {
  color: var(--accent-dark);
  font-weight: 800;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-block: 32px 48px;
  border-top: 1px solid rgba(31, 42, 68, 0.12);
  color: var(--muted);
}

footer p {
  margin: 0;
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 20px;
  }

  .site-header nav {
    gap: 8px 18px;
  }

  main {
    padding-block: 46px 72px;
  }

  .link-grid {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: 240px;
  }

  .related-links,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}