/* SEO 정적 페이지 공통 — 앱 sky 팔레트와 맞춤 */
:root {
  --sky-bg: #edf4fc;
  --sky-soft: #e4eff9;
  --sky-tint: #d9ebfa;
  --sky-border: #c8dff5;
  --brand: #3182f6;
  --brand-dark: #1b64da;
  --ink: #191f28;
  --muted: #6b7a8a;
  --muted-light: #94a3b8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family:
    'Pretendard Variable',
    Pretendard,
    -apple-system,
    BlinkMacSystemFont,
    system-ui,
    'Apple SD Gothic Neo',
    'Noto Sans KR',
    sans-serif;
  background: var(--sky-bg);
  color: var(--ink);
  letter-spacing: -0.02em;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.wrap {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid color-mix(in srgb, var(--sky-border) 80%, transparent);
  font-size: 0.8125rem;
  font-weight: 700;
}

.topnav .brand {
  color: var(--brand);
  font-size: 0.9375rem;
  margin-right: auto;
}

.hero {
  border-radius: 1.5rem;
  padding: 1.25rem;
  background: linear-gradient(135deg, var(--sky-tint), var(--sky-soft));
  box-shadow: 0 4px 16px rgba(49, 130, 246, 0.1);
}

.hero .eyebrow {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand);
}

.hero h1 {
  margin: 0.25rem 0 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.hero p {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
}

.section {
  margin-top: 1.5rem;
}

.section h2 {
  margin: 0 0 0.5rem;
  padding: 0 0.125rem;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--brand);
}

.card {
  border-radius: 1rem;
  padding: 0.875rem 1rem;
  background: var(--sky-soft);
  border: 1px solid color-mix(in srgb, var(--sky-border) 60%, transparent);
}

.card + .card {
  margin-top: 0.75rem;
}

.card.accent {
  background: #fff;
  border: 2px solid color-mix(in srgb, var(--brand) 25%, transparent);
  box-shadow: 0 2px 10px rgba(49, 130, 246, 0.08);
}

.card h3 {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
}

.card.accent h3 {
  color: var(--brand);
}

.card p,
.card li {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
}

.card p {
  margin: 0.375rem 0 0;
}

.card ul {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
}

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

.dl {
  margin: 0;
}

.dl div {
  display: flex;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
}

.dl div + div {
  margin-top: 0.35rem;
}

.dl dt {
  flex: 0 0 6rem;
  color: var(--muted);
}

.dl dd {
  margin: 0;
  color: var(--ink);
  overflow-wrap: anywhere;
}

details.faq {
  border-radius: 1rem;
  padding: 0.75rem 1rem;
  background: var(--sky-soft);
  border: 1px solid color-mix(in srgb, var(--sky-border) 60%, transparent);
}

details.faq + details.faq {
  margin-top: 0.5rem;
}

details.faq summary {
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
}

details.faq summary::-webkit-details-marker {
  display: none;
}

details.faq p {
  margin: 0.5rem 0 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
}

.cat-label {
  margin: 1rem 0 0.5rem;
  padding: 0 0.125rem;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--brand);
}

.footer-note {
  margin-top: 2rem;
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--muted-light);
}

.cta {
  display: inline-flex;
  margin-top: 0.75rem;
  padding: 0.65rem 1rem;
  border-radius: 0.75rem;
  background: var(--brand);
  color: #fff !important;
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none !important;
}

.cta:hover {
  background: var(--brand-dark);
}