:root {
  --acid: #c8ef42;
  --ink: #111512;
  --line: #c8c3b6;
  --muted: #666a64;
  --paper: #f3f0e6;
  --paper-deep: #e4dfd1;
  --teal: #1ec8ae;
  --white: #fffef9;
  color-scheme: light;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--paper);
  background-image:
    linear-gradient(rgb(17 21 18 / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgb(17 21 18 / 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--ink);
  font-family:
    "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  line-height: 1.75;
  margin: 0;
  min-width: 320px;
  overflow-wrap: break-word;
  word-break: keep-all;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 4px;
}

.skip-link {
  background: var(--acid);
  font-weight: 900;
  left: 16px;
  padding: 10px 14px;
  position: fixed;
  top: -80px;
  z-index: 100;
}

.skip-link:focus {
  top: 12px;
}

.guide-header {
  background: rgb(243 240 230 / 0.94);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  align-items: center;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  height: 72px;
  margin: 0 auto;
  max-width: 1180px;
  width: calc(100vw - 48px);
}

.brand-link {
  width: 130px;
}

.brand-link img {
  height: auto;
  width: 130px;
}

.header-context {
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.header-cta {
  align-items: center;
  background: var(--ink);
  color: var(--white);
  display: inline-flex;
  font-size: 0.75rem;
  font-weight: 900;
  gap: 12px;
  justify-self: end;
  min-height: 42px;
  padding: 0 16px;
  text-decoration: none;
}

.header-cta span,
.button span,
.source-list a span {
  color: var(--teal);
}

.guide-hero {
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
  position: relative;
}

.guide-hero::after {
  border: 1px solid rgb(30 200 174 / 0.55);
  border-radius: 50%;
  content: "";
  height: 520px;
  position: absolute;
  right: -150px;
  top: -230px;
  width: 520px;
}

.hero-inner {
  display: grid;
  gap: 64px;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  margin: 0 auto;
  max-width: 1180px;
  padding: 92px 0 84px;
  position: relative;
  width: calc(100vw - 48px);
  z-index: 1;
}

.breadcrumbs,
.eyebrow,
.check-index,
.toc-label,
.decision-kicker {
  font-size: 0.67rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.breadcrumbs {
  color: rgb(255 254 249 / 0.55);
  margin: 0 0 44px;
}

.breadcrumbs a {
  text-underline-offset: 4px;
}

.eyebrow {
  color: var(--teal);
  margin: 0 0 18px;
}

h1,
h2,
.hero-note strong,
.decision-box h2 {
  font-family: "Nanum Myeongjo", "Batang", serif;
  font-weight: 500;
}

h1 {
  font-size: clamp(3.45rem, 7vw, 6.9rem);
  letter-spacing: -0.07em;
  line-height: 1.02;
  margin: 0;
}

.hero-summary {
  color: rgb(255 254 249 / 0.7);
  font-size: 1rem;
  margin: 30px 0 0;
  max-width: 700px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  display: inline-flex;
  font-size: 0.84rem;
  font-weight: 900;
  gap: 18px;
  justify-content: space-between;
  min-height: 54px;
  padding: 0 20px;
  text-decoration: none;
}

.button-primary {
  background: var(--acid);
  color: var(--ink);
}

.button-quiet {
  border-color: rgb(255 255 255 / 0.4);
  color: var(--white);
}

.hero-note {
  align-self: end;
  border-left: 3px solid var(--teal);
  padding: 10px 0 10px 24px;
}

.hero-note strong {
  display: block;
  font-size: 1.55rem;
  letter-spacing: -0.04em;
  line-height: 1.35;
}

.hero-note p {
  color: rgb(255 254 249 / 0.6);
  font-size: 0.75rem;
  margin: 14px 0 0;
}

.article-shell {
  display: grid;
  gap: 70px;
  grid-template-columns: 230px minmax(0, 760px);
  justify-content: center;
  margin: 0 auto;
  max-width: 1180px;
  padding: 92px 0 120px;
  width: calc(100vw - 48px);
}

.article-shell > article {
  min-width: 0;
}

.toc {
  align-self: start;
  border-top: 1px solid var(--ink);
  position: sticky;
  top: 104px;
}

.toc-label {
  color: var(--teal);
  margin: 22px 0;
}

.toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc a {
  border-top: 1px solid var(--line);
  display: block;
  font-size: 0.74rem;
  font-weight: 800;
  padding: 12px 0;
  text-decoration: none;
}

.toc a:hover {
  color: #087f70;
}

.article-lead {
  border-bottom: 1px solid var(--ink);
  font-family: "Nanum Myeongjo", "Batang", serif;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  letter-spacing: -0.035em;
  line-height: 1.55;
  margin: 0;
  padding-bottom: 54px;
}

.check-item {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 26px;
  grid-template-columns: 72px 1fr;
  padding: 58px 0;
  scroll-margin-top: 92px;
}

.check-index {
  color: var(--teal);
  padding-top: 8px;
}

.check-item h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -0.055em;
  line-height: 1.18;
  margin: 0 0 20px;
}

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

.check-item p + p {
  margin-top: 16px;
}

.inline-source {
  color: #086f63;
  font-size: 0.75rem;
  font-weight: 900;
  text-underline-offset: 5px;
}

.risk-callout {
  background: var(--ink);
  border-left: 6px solid var(--acid);
  color: var(--white);
  margin: 64px 0;
  padding: 34px 36px;
}

.risk-callout strong {
  display: block;
  font-size: 1.05rem;
}

.risk-callout p {
  color: rgb(255 254 249 / 0.68);
  font-size: 0.82rem;
  margin: 12px 0 0;
}

.risk-callout p + p {
  margin-top: 10px;
}

.callout-source {
  color: var(--acid);
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 900;
  margin-top: 14px;
  text-underline-offset: 5px;
}

.comparison {
  padding: 36px 0 72px;
}

.comparison h2,
.sources h2 {
  font-family: "Nanum Myeongjo", "Batang", serif;
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1.2;
  margin: 0 0 30px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  min-width: 620px;
  width: 100%;
}

th,
td {
  border: 1px solid var(--ink);
  padding: 17px 18px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--ink);
  color: var(--white);
  font-size: 0.76rem;
}

td {
  background: rgb(255 254 249 / 0.54);
  color: var(--muted);
  font-size: 0.76rem;
}

td:first-child {
  color: var(--ink);
  font-weight: 900;
}

.decision-box {
  background:
    linear-gradient(135deg, rgb(30 200 174 / 0.18), transparent 44%),
    var(--white);
  border: 1px solid var(--ink);
  box-shadow: 16px 16px 0 var(--teal);
  margin: 24px 0 84px;
  padding: 42px;
}

.decision-kicker {
  color: #087f70;
  margin: 0 0 12px;
}

.decision-box h2 {
  font-size: clamp(2.35rem, 5vw, 4rem);
  letter-spacing: -0.06em;
  line-height: 1.12;
  margin: 0;
}

.decision-box > p:not(.decision-kicker) {
  color: var(--muted);
  margin: 20px 0 0;
  max-width: 620px;
}

.decision-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0;
}

.decision-facts span {
  border: 1px solid var(--ink);
  font-size: 0.7rem;
  font-weight: 900;
  padding: 7px 10px;
}

.decision-box .button-primary {
  border-color: var(--ink);
}

.sources {
  border-top: 1px solid var(--ink);
  padding-top: 54px;
}

.source-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.source-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.source-list a {
  align-items: center;
  display: flex;
  font-size: 0.78rem;
  font-weight: 900;
  justify-content: space-between;
  padding: 16px 0;
  text-decoration: none;
}

.site-footer {
  background: var(--paper-deep);
  border-top: 1px solid var(--ink);
}

.footer-inner {
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr 1.3fr;
  margin: 0 auto;
  max-width: 1180px;
  padding: 54px 0 88px;
  width: calc(100vw - 48px);
}

.footer-inner img {
  margin-bottom: 18px;
  width: 118px;
}

.footer-inner p {
  color: var(--muted);
  font-size: 0.72rem;
  margin: 0;
}

.footer-inner p + p {
  margin-top: 8px;
}

.footer-disclaimer {
  border-left: 3px solid var(--teal);
  padding-left: 24px;
}

@media (max-width: 860px) {
  .header-context {
    display: none;
  }

  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .hero-inner {
    gap: 48px;
    grid-template-columns: 1fr;
  }

  .article-shell {
    grid-template-columns: 1fr;
  }

  .toc {
    display: none;
  }
}

@media (max-width: 620px) {
  .header-inner {
    height: 64px;
    width: calc(100vw - 32px);
  }

  .brand-link,
  .brand-link img {
    width: 108px;
  }

  .header-cta {
    font-size: 0.65rem;
    min-height: 38px;
    padding: 0 12px;
  }

  .header-cta .header-price {
    display: none;
  }

  .hero-inner,
  .article-shell,
  .footer-inner {
    width: calc(100vw - 32px);
  }

  .hero-inner {
    padding: 68px 0 64px;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.6rem);
  }

  .hero-summary {
    font-size: 0.88rem;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .article-shell {
    padding: 70px 0 90px;
  }

  .article-lead {
    font-size: 1.55rem;
    padding-bottom: 40px;
  }

  .check-item {
    display: block;
    padding: 46px 0;
  }

  .check-index {
    display: block;
    margin-bottom: 14px;
  }

  .risk-callout {
    margin: 50px 0;
    padding: 26px 24px;
  }

  .decision-box {
    box-shadow: 10px 10px 0 var(--teal);
    padding: 30px 24px;
  }

  .footer-inner {
    display: block;
    padding: 42px 0 94px;
  }

  .footer-disclaimer {
    margin-top: 30px;
  }
}

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