:root {
  color-scheme: dark;
  --background: #080b12;
  --surface: #111724;
  --surface-raised: #182033;
  --border: #2a3650;
  --text: #f7f9fd;
  --muted: #a9b3c7;
  --accent: #ffb45b;
  --accent-strong: #ffd39c;
  --link: #8ec8ff;
  --success: #73d5a5;
  --warning: #f7cf72;
  --content-width: 74rem;
  font-family: Inter, Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  line-height: 1.65;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 82% -8%, rgba(255, 180, 91, 0.16), transparent 30rem),
    radial-gradient(circle at 10% 18%, rgba(90, 159, 255, 0.09), transparent 27rem),
    var(--background);
}

a {
  color: var(--link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:hover {
  color: #c1e1ff;
}

a:focus-visible,
summary:focus-visible {
  outline: 0.18rem solid var(--accent);
  outline-offset: 0.22rem;
  border-radius: 0.2rem;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.85rem;
  color: #080b12;
  background: var(--accent);
  border-radius: 0.5rem;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.site-footer,
.page-shell {
  width: min(calc(100% - 2rem), var(--content-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.35rem;
}

.brand {
  color: var(--text);
  font-size: 1.04rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  margin-right: 0.55rem;
  place-items: center;
  color: #17100a;
  background: linear-gradient(140deg, var(--accent-strong), var(--accent));
  border-radius: 0.6rem;
  box-shadow: 0 0.55rem 1.3rem rgba(255, 180, 91, 0.18);
}

.language-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.language-nav a {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  padding: 0.45rem 0.75rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
}

.language-nav a[aria-current="page"] {
  color: var(--text);
  background: var(--surface-raised);
  border-color: #4a5d80;
}

.page-shell {
  padding-block: clamp(2rem, 6vw, 5rem) 5rem;
}

.hero {
  max-width: 54rem;
  margin-bottom: 2.5rem;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--accent-strong);
  font-size: 0.79rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.27;
  letter-spacing: -0.028em;
}

h1 {
  max-width: 20ch;
  margin: 0;
  font-size: clamp(2.15rem, 7vw, 4.35rem);
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.35rem, 3.5vw, 1.85rem);
}

h3 {
  margin: 1.6rem 0 0.65rem;
  font-size: 1.05rem;
}

p,
li {
  color: #d7ddea;
}

.lede {
  max-width: 50rem;
  margin: 1.15rem 0 0;
  color: #d6ddea;
  font-size: clamp(1.05rem, 2.5vw, 1.22rem);
}

.metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.2rem;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.notice {
  margin: 1.75rem 0;
  padding: 1rem 1.15rem;
  color: #f8e9ca;
  background: rgba(247, 207, 114, 0.08);
  border: 1px solid rgba(247, 207, 114, 0.32);
  border-radius: 0.85rem;
}

.notice strong {
  color: var(--warning);
}

.summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-block: 2rem 3rem;
}

.summary-card,
.link-card {
  padding: 1.15rem;
  background: linear-gradient(150deg, rgba(24, 32, 51, 0.96), rgba(17, 23, 36, 0.96));
  border: 1px solid var(--border);
  border-radius: 1rem;
}

.summary-card strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.summary-card span {
  color: var(--muted);
  font-size: 0.94rem;
}

.document-layout {
  display: grid;
  grid-template-columns: minmax(13rem, 18rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}

.toc {
  position: sticky;
  top: 1rem;
  padding: 1rem;
  background: rgba(17, 23, 36, 0.9);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  backdrop-filter: blur(0.6rem);
}

.toc strong {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 0.88rem;
}

.toc ol {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding-left: 1.25rem;
}

.toc a {
  color: var(--muted);
  font-size: 0.9rem;
}

.legal-document {
  min-width: 0;
}

.legal-document section {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: 1rem;
}

.legal-document section:first-child {
  padding-top: 0;
  border-top: 0;
}

ul,
ol {
  padding-left: 1.3rem;
}

li + li {
  margin-top: 0.4rem;
}

.table-wrap {
  max-width: 100%;
  margin: 1rem 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 0.8rem;
}

table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
  background: rgba(17, 23, 36, 0.72);
}

th,
td {
  padding: 0.8rem 0.9rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--accent-strong);
  font-size: 0.86rem;
  background: rgba(24, 32, 51, 0.86);
}

td {
  color: #d5dcea;
  font-size: 0.92rem;
}

tr:last-child td {
  border-bottom: 0;
}

.route-list,
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.section-spaced {
  margin-top: 3.5rem;
}

.link-card {
  display: flex;
  min-height: 11.5rem;
  flex-direction: column;
  justify-content: space-between;
  color: var(--text);
  text-decoration: none;
  transition: border-color 150ms ease, transform 150ms ease;
}

.link-card:hover {
  color: var(--text);
  border-color: #5b7198;
  transform: translateY(-0.18rem);
}

.link-card span {
  color: var(--muted);
}

.link-card strong {
  font-size: 1.15rem;
}

.steps {
  counter-reset: deletion-step;
  display: grid;
  gap: 0.8rem;
  padding: 0;
  list-style: none;
}

.steps li {
  position: relative;
  min-height: 3rem;
  padding: 0.8rem 0.9rem 0.8rem 3.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  counter-increment: deletion-step;
}

.steps li::before {
  position: absolute;
  top: 0.7rem;
  left: 0.8rem;
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  color: #1b130a;
  background: var(--accent);
  border-radius: 50%;
  content: counter(deletion-step);
  font-weight: 800;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  color: var(--success);
  background: rgba(115, 213, 165, 0.08);
  border: 1px solid rgba(115, 213, 165, 0.28);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
}

.site-footer p,
.site-footer nav {
  margin: 0;
  color: var(--muted);
  font-size: 0.87rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

code {
  padding: 0.12em 0.35em;
  color: #ffe0b9;
  background: #1c2230;
  border: 1px solid #303b50;
  border-radius: 0.3rem;
}

@media (max-width: 52rem) {
  .document-layout {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }

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

@media (max-width: 38rem) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .route-list,
  .card-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.35rem;
  }
}

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

  .link-card {
    transition: none;
  }
}