:root {
  color-scheme: light;
  --ink: #17314e;
  --muted: #4b6175;
  --line: #ccdae6;
  --blue: #1465d3;
  --pale: #edf5ff;
  --paper: #f8fbff;
  font-family: "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", system-ui, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); }
a { color: inherit; }
a:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; border-radius: 2px; }

.site-shell { width: min(100% - 48px, 1080px); margin: 0 auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 92px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 13px; text-decoration: none; font-size: 0.94rem; font-weight: 650; }
.brand-mark { display: inline-flex; justify-content: center; align-items: center; width: 45px; height: 45px; border-radius: 13px; background: var(--ink); color: white; font-size: 1.03rem; font-weight: 800; letter-spacing: -0.08em; }
.brand-dot { color: #75b8ff; }
.site-header nav a, .site-footer a { color: var(--muted); font-size: 0.92rem; text-decoration: none; }
.site-header nav a:hover, .site-footer a:hover { color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }

.eyebrow { margin: 0 0 20px; color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; }
.intro { padding: clamp(78px, 11vw, 150px) 0 75px; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { margin: 0; font-size: clamp(2.5rem, 5.6vw, 5rem); line-height: 1.23; letter-spacing: -0.065em; font-weight: 800; }
h1 span { color: var(--blue); }
.lead { max-width: 710px; margin: 29px 0 0; color: var(--muted); font-size: clamp(1.06rem, 1.6vw, 1.24rem); line-height: 1.85; }
.intro-rule { display: flex; gap: 9px; margin-top: 56px; }
.intro-rule span { height: 5px; background: var(--blue); border-radius: 3px; }
.intro-rule span:nth-child(1) { width: 80px; }
.intro-rule span:nth-child(2) { width: 23px; opacity: 0.45; }
.intro-rule span:nth-child(3) { width: 8px; opacity: 0.25; }

.details { display: grid; grid-template-columns: minmax(200px, 0.75fr) minmax(0, 1.45fr); gap: 55px; padding: 65px 0 100px; border-top: 1px solid var(--line); }
.section-heading h2, .notice h2 { margin: 0; font-size: clamp(1.75rem, 3vw, 2.6rem); line-height: 1.35; letter-spacing: -0.04em; }
.feature { display: grid; grid-template-columns: 48px 1fr; gap: 18px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.feature:first-child { padding-top: 0; }
.feature-number { color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem; font-weight: 700; padding-top: 5px; }
.feature h3 { margin: 0 0 8px; font-size: 1.17rem; }
.feature p, .notice p:not(.eyebrow) { margin: 0; color: var(--muted); line-height: 1.8; font-size: 1rem; }
.notice { display: flex; align-items: flex-end; justify-content: space-between; gap: 35px; margin-bottom: 100px; padding: 42px; background: var(--pale); border: 1px solid #d9eaff; border-radius: 16px; }
.notice > div { max-width: 660px; }
.notice .eyebrow { margin-bottom: 12px; }
.notice p:not(.eyebrow) { margin-top: 15px; }
.text-link { flex: none; color: var(--blue); font-weight: 700; text-decoration: none; white-space: nowrap; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 25px 0 35px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }

.policy-layout { display: grid; grid-template-columns: 240px minmax(0, 680px); gap: 70px; padding: 80px 0 110px; }
.policy-side { align-self: start; position: sticky; top: 35px; }
.policy-side .eyebrow { margin-bottom: 11px; }
.policy-side h1 { font-size: 2.15rem; line-height: 1.35; }
.policy-side .updated { margin: 15px 0 0; color: var(--muted); font-size: 0.9rem; }
.policy-content > p:first-child { margin-top: 0; }
.policy-content p, .policy-content li { color: var(--muted); font-size: 1rem; line-height: 1.9; }
.policy-content section { border-top: 1px solid var(--line); padding: 29px 0 22px; }
.policy-content h2 { margin: 0 0 14px; font-size: 1.3rem; letter-spacing: -0.025em; }
.policy-content ul { padding-left: 1.4rem; margin: 10px 0 0; }
.policy-content li + li { margin-top: 7px; }
.policy-content a { color: var(--blue); text-underline-offset: 3px; }

@media (max-width: 760px) {
  .site-shell { width: min(100% - 36px, 1080px); }
  .site-header { min-height: 76px; }
  .brand { gap: 9px; font-size: 0.85rem; }
  .brand-mark { width: 39px; height: 39px; }
  .site-header nav a { font-size: 0.82rem; }
  .intro { padding: 80px 0 62px; }
  .details { display: block; padding: 48px 0 70px; }
  .section-heading { margin-bottom: 34px; }
  .notice { display: block; margin-bottom: 65px; padding: 29px; }
  .text-link { display: inline-block; margin-top: 28px; }
  .policy-layout { display: block; padding: 64px 0 80px; }
  .policy-side { position: static; margin-bottom: 46px; }
}

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