@font-face {
  font-family: "Pretendard";
  src: url("/fonts/PretendardVariable.woff2") format("woff2-variations");
  font-weight: 45 920;
  font-style: normal;
  font-display: swap;
}

.seo-shell {
  min-height: 100vh;
  box-sizing: border-box;
  padding: 40px 24px 80px;
  background: #fff;
  color: #111827;
  font-family: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

.seo-shell *, .seo-shell *::before, .seo-shell *::after { box-sizing: border-box; }
.seo-shell a { color: inherit; text-decoration: none; }
.seo-shell__nav, .seo-shell__content { width: min(1080px, 100%); margin-inline: auto; }
.seo-shell__nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 56px; }
.seo-shell__brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 900; }
.seo-shell__brand img { width: 36px; height: 36px; border-radius: 10px; object-fit: contain; }
.seo-shell__nav-links { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; color: #4b5563; font-size: 14px; font-weight: 800; }
.seo-shell__button { display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; padding: 13px 20px; background: #2ac1bc; color: #fff !important; font-weight: 900; }
.seo-shell__eyebrow { margin: 0 0 16px; color: #15948f; font-size: 14px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.seo-shell h1 { max-width: 850px; margin: 0; color: #030712; font-size: clamp(36px, 6vw, 64px); line-height: 1.14; letter-spacing: -.04em; }
.seo-shell__lead { max-width: 780px; margin: 22px 0 0; color: #4b5563; font-size: clamp(17px, 2.2vw, 21px); font-weight: 600; line-height: 1.75; }
.seo-shell__hero-image { width: 100%; margin-top: 36px; aspect-ratio: 16 / 9; border-radius: 18px; object-fit: cover; box-shadow: 0 18px 42px rgba(15, 23, 42, .08); }
.seo-shell__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 48px; }
.seo-shell__card { overflow: hidden; padding: 24px; border: 1px solid #e5e7eb; border-radius: 18px; background: #fff; }
.seo-shell__card img { width: calc(100% + 48px); max-width: none; margin: -24px -24px 20px; aspect-ratio: 16 / 9; object-fit: cover; }
.seo-shell__card h2, .seo-shell__section h2 { margin: 0 0 12px; color: #111827; font-size: 23px; line-height: 1.4; }
.seo-shell__card h3 { margin: 0 0 10px; color: #111827; font-size: 20px; }
.seo-shell__card p, .seo-shell__section p, .seo-shell__section li { margin: 0; color: #4b5563; font-size: 16px; line-height: 1.8; }
.seo-shell__section { max-width: 840px; margin-top: 44px; }
.seo-shell__section p + p { margin-top: 16px; }
.seo-shell__section ul { padding-left: 22px; }
.seo-shell__steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding: 0 !important; list-style: none; }
.seo-shell__steps li { padding: 18px; border: 1px solid #e5e7eb; border-radius: 14px; }
.seo-shell__steps h3 { margin: 0 0 8px; color: #111827; font-size: 18px; }
.seo-shell__table-wrap { width: 100%; margin-top: 20px; overflow-x: auto; border: 1px solid #e5e7eb; border-radius: 14px; }
.seo-shell__table { width: 100%; min-width: 760px; border-collapse: collapse; text-align: left; }
.seo-shell__table th, .seo-shell__table td { padding: 14px; border-top: 1px solid #e5e7eb; color: #4b5563; font-size: 14px; line-height: 1.6; vertical-align: top; }
.seo-shell__table thead th { border-top: 0; background: #111827; color: #fff; }
.seo-shell__table tbody th { color: #111827; }
.seo-shell__table tbody tr:nth-child(even) { background: #f9fafb; }
.seo-shell__faq { max-width: 900px; margin-top: 44px; }
.seo-shell__faq details { margin-bottom: 14px; padding: 20px 22px; border: 1px solid #e5e7eb; border-radius: 16px; }
.seo-shell__faq summary { cursor: pointer; color: #111827; font-size: 17px; font-weight: 900; }
.seo-shell__faq p { margin: 14px 0 0; color: #4b5563; line-height: 1.75; }
.seo-shell__cta { margin-top: 56px; padding: 34px; border-radius: 22px; background: #111827; color: #fff; }
.seo-shell__cta h2 { margin: 0; font-size: clamp(28px, 4vw, 40px); }
.seo-shell__cta p { max-width: 760px; margin: 14px 0 22px; color: #d1d5db; line-height: 1.7; }
.seo-shell__muted { color: #6b7280; }
.seo-shell__status { max-width: 620px; margin: 15vh auto 0; text-align: center; }

@media (max-width: 760px) {
  .seo-shell { padding: 28px 20px 64px; }
  .seo-shell__nav { align-items: flex-start; padding-bottom: 42px; }
  .seo-shell__nav-links { justify-content: flex-end; gap: 12px; }
  .seo-shell__nav-links a:not(.seo-shell__button) { display: none; }
  .seo-shell__grid { grid-template-columns: 1fr; }
  .seo-shell__steps { grid-template-columns: 1fr; }
}