:root {
  color-scheme: light;
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #24231f;
  --muted: #68655d;
  --line: #ded9cf;
  --brand: #e8563f;
  --brand-dark: #a72f20;
  --brand-soft: #ffebe5;
  --focus: #125da8;
  --shadow: 0 12px 30px rgba(58, 47, 36, 0.06);
  --radius-lg: 1.5rem;
  --radius-md: 1.25rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

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

a:hover {
  color: var(--brand-dark);
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
  border-radius: 0.25rem;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: #fff;
  transform: translateY(-150%);
}

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

.site-shell {
  width: min(100% - 2rem, 64rem);
  margin-inline: auto;
}

.site-header {
  padding-block: 1rem;
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border-radius: 0.75rem;
  background: var(--brand-dark);
  color: #fff;
  font-size: 0.88rem;
  letter-spacing: -0.08em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.35rem 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-links a[aria-current="page"] {
  color: var(--brand-dark);
}

.home-intro,
.simple-page {
  max-width: 48rem;
  padding-block: clamp(3.5rem, 10vw, 6rem);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--brand-dark);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.22;
  letter-spacing: -0.04em;
}

h1 {
  margin-bottom: 1.25rem;
  font-size: clamp(2.35rem, 8vw, 4.25rem);
  font-weight: 850;
}

.page-intro h1 {
  margin-bottom: 0.75rem;
  font-size: clamp(2rem, 6vw, 3.25rem);
}

.page-lead {
  max-width: 42rem;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.app-summary {
  margin-top: clamp(3rem, 8vw, 4.5rem);
  padding: clamp(1.4rem, 5vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.app-summary h2 {
  margin-bottom: 0.6rem;
  font-size: clamp(1.75rem, 5vw, 2.25rem);
}

.app-summary h2 a {
  text-decoration-thickness: 0.08em;
}

.app-summary p {
  margin-block: 0.35rem;
}

.muted-copy {
  color: var(--muted);
}

.text-link,
.button-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  font-weight: 800;
}

.button-link {
  justify-content: center;
  padding: 0.75rem 1.1rem;
  border-radius: 999px;
  background: var(--brand-dark);
  color: #fff;
  text-decoration: none;
}

.button-link:hover {
  background: var(--ink);
  color: #fff;
}

.page-intro {
  padding-block: clamp(3.5rem, 9vw, 5.5rem) clamp(2.5rem, 6vw, 4rem);
}

.page-intro h1 {
  max-width: none;
}

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.25rem;
  margin-top: 2rem;
}

.policy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  padding-bottom: 5rem;
}

.policy-nav {
  display: none;
}

.policy-body {
  max-width: 47rem;
}

.policy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  margin: 0 0 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.policy-body section {
  scroll-margin-top: 1rem;
  padding-block: 1.75rem;
  border-top: 1px solid var(--line);
}

.policy-body h2 {
  margin-bottom: 0.9rem;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
}

.policy-body h3 {
  margin: 1.4rem 0 0.4rem;
  font-size: 1.05rem;
}

.policy-body p,
.policy-body ul {
  margin-top: 0;
}

.policy-body li + li {
  margin-top: 0.4rem;
}

.notice {
  padding: 1.25rem;
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--brand-soft);
}

.not-found-card {
  max-width: 45rem;
  padding: clamp(1.5rem, 6vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.support-note {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.support-note p:last-child {
  margin-bottom: 0;
}

.not-found {
  display: grid;
  min-height: 65vh;
  place-items: center;
  padding-block: 4rem;
}

.not-found-card {
  text-align: center;
}

.not-found-card h1 {
  max-width: none;
  font-size: clamp(2rem, 7vw, 4rem);
}

.site-footer {
  margin-top: 2rem;
  padding-block: 2rem;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.9rem;
}

@media (min-width: 36rem) {
  .nav {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }
}

@media (min-width: 48rem) {
  .site-shell {
    width: min(100% - 4rem, 64rem);
  }

  .nav-links {
    gap: 0.75rem;
  }

  .nav-links a {
    padding-inline: 0.8rem;
  }

  .policy-layout {
    grid-template-columns: 13rem minmax(0, 1fr);
    gap: 4rem;
  }

  .policy-nav {
    display: block;
    align-self: start;
    position: sticky;
    top: 1.5rem;
  }

  .policy-nav p {
    margin: 0 0 0.75rem;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .policy-nav ol {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--muted);
    font-size: 0.88rem;
  }

  .policy-nav li + li {
    margin-top: 0.35rem;
  }

  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

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