/* SEO/읽기 UX 서피스 (청년지갑)
   - style.css의 토큰/타이포 톤에 맞춰 “블로그+서비스” 느낌의 본문 블록 UI */

:root {
  --seo-border: rgba(15, 23, 42, 0.10);
  --seo-bg: rgba(255, 255, 255, 0.78);
  --seo-text-muted: #475569;
  --seo-shadow: 0 10px 34px rgba(15, 23, 42, 0.08);
}

/* 페이지 뼈대: 헤더/푸터는 common.js로 주입, 본문은 main으로 묶는다. */
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-main {
  flex: 1 0 auto;
  min-width: 0;
  width: 100%;
}

.skip-to-main {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 9999;
  padding: 10px 12px;
  border-radius: 12px;
  background: #0f172a;
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-to-main:focus,
.skip-to-main:focus-visible {
  transform: translateY(0);
  outline: 3px solid rgba(124, 58, 237, 0.45);
  outline-offset: 2px;
}

.seo-breadcrumb {
  border-bottom: 1px solid var(--seo-border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.55) 100%);
  backdrop-filter: blur(6px);
}

.seo-breadcrumb__inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 12px 20px 14px;
}

.seo-breadcrumb__nav[aria-label="breadcrumb"] ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  align-items: center;
  margin: 0;
  padding: 0;
  color: #64748b;
  font-size: 13px;
  line-height: 1.4;
}

.seo-breadcrumb__nav a {
  color: #0c8ecf;
  text-decoration: none;
  font-weight: 800;
}

.seo-breadcrumb__nav a:hover {
  text-decoration: underline;
}

.seo-breadcrumb__sep {
  color: #94a3b8;
  font-weight: 800;
}

.seo-breadcrumb__current {
  color: #0f172a;
  font-weight: 900;
}

/* 본문 SEO 블록(카드+그리드) — 랜딩/서브페이지 톤(그라데이션·soft shadow) */
.seo-surface {
  position: relative;
  padding: 48px 0 40px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.55) 0%, rgba(241, 245, 249, 0.92) 38%, #f1f5f9 100%);
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  border-bottom: 1px solid rgba(15, 23, 42, 0.05);
}

.seo-surface--tight {
  padding: 32px 0 28px;
}

.seo-surface::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(1200px 400px at 10% 0%, rgba(99, 102, 241, 0.09) 0%, transparent 55%),
    radial-gradient(900px 360px at 90% 20%, rgba(12, 142, 207, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.seo-surface > .container {
  position: relative;
  z-index: 1;
}

.seo-hero {
  display: grid;
  /* 소개(좌) : KPI 3카드(우) — 우측 컬럼에 가로 여유(3분할 카드가 너무 좁아지지 않게) */
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.3fr);
  gap: 24px 28px;
  align-items: stretch;
  margin: 0 0 22px;
}

@media (max-width: 980px) {
  .seo-hero {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.seo-hero__title {
  margin: 0 0 12px;
  padding-bottom: 14px;
  font-size: clamp(1.35rem, 2.1vw, 1.7rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  text-wrap: balance;
  color: #0f172a;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: inset 0 -3px 0 0 rgba(99, 102, 241, 0.35);
}

.seo-hero__lead {
  margin: 0 0 0.9rem;
  max-width: 68ch;
  color: var(--seo-text-muted);
  font-size: 15.5px;
  line-height: 1.85;
}

.seo-surface .seo-hero__lead:last-of-type {
  margin-bottom: 0;
}

.seo-kpi {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 16px;
  min-width: 0;
  align-content: start;
  height: 100%;
}

@media (max-width: 520px) {
  .seo-kpi {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .seo-kpi {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.seo-kpi__item {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  border: 1px solid var(--seo-border);
  background: var(--seo-bg);
  box-shadow: var(--seo-shadow);
  border-radius: var(--radius-lg);
  padding: 16px 16px 14px;
}

.seo-kpi__k {
  display: block;
  font-size: 11.5px;
  color: #64748b;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: none;
  white-space: nowrap;
}

.seo-kpi__v {
  display: block;
  margin-top: 8px;
  font-size: clamp(1.05rem, 1.1vw, 1.2rem);
  font-weight: 900;
  color: #0f172a;
  letter-spacing: -0.03em;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.seo-kpi__s {
  display: block;
  margin-top: 10px;
  padding-top: 4px;
  font-size: 13px;
  color: #64748b;
  line-height: 1.45;
  flex: 1 1 auto;
  min-height: 0;
}

@media (max-width: 520px) {
  .seo-kpi__k,
  .seo-kpi__v {
    white-space: normal;
  }

  .seo-kpi__v {
    text-overflow: unset;
    overflow: visible;
  }
}

.seo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.58fr) minmax(0, 1.15fr);
  gap: 24px 28px;
  align-items: start;
  margin-top: 20px;
}

@media (max-width: 1024px) {
  .seo-grid {
    grid-template-columns: 1fr;
  }
}

.seo-card {
  position: relative;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #fff;
  box-shadow: var(--shadow-card, 0 8px 30px rgba(15, 23, 42, 0.07));
  border-radius: var(--radius-lg);
  padding: 22px 22px 20px;
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
  overflow: hidden;
}

.seo-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #0ea5e9 0%, #6366f1 50%, #7c3aed 100%);
  opacity: 0.85;
}

.seo-card:hover {
  box-shadow: var(--shadow-hover, 0 14px 40px rgba(15, 23, 42, 0.1));
  border-color: rgba(99, 102, 241, 0.2);
  transform: translateY(-1px);
}

.seo-card__title {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #0f172a;
}

.seo-card__prose p {
  margin: 0 0 10px;
  color: #334155;
  line-height: 1.85;
  font-size: 15.5px;
}

.seo-card__prose p:last-child {
  margin-bottom: 0;
}

.seo-list {
  margin: 0;
  padding-left: 1.1rem;
  color: #334155;
  line-height: 1.85;
  font-size: 15px;
}

.seo-list li {
  margin: 6px 0;
}

.seo-list--check {
  list-style: none;
  padding-left: 0;
}

.seo-list--check li {
  position: relative;
  padding-left: 1.2rem;
}

.seo-list--check li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.05rem;
  color: #0c8ecf;
  font-weight: 900;
}

/* ── 공통: 칩 버튼형 내부링크 (수동 적용 전용) ── */
.seo-chip-link {
  display: inline-block;
  padding: 4px 10px;
  margin: 2px 6px 2px 0;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  color: #6b46ff;
  background: #f7f4ff;
  border: 1px solid #e4ddff;
  vertical-align: middle;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.seo-chip-link:hover {
  background: #eee7ff;
  color: #5a35ea;
  border-color: #d6caff;
}

.seo-chip-link:focus-visible {
  outline: 2px solid rgba(107, 70, 255, 0.25);
  outline-offset: 2px;
}

@media (max-width: 767px) {
  .seo-chip-link {
    font-size: 13px;
    padding: 5px 10px;
  }
}

.seo-aside {
  position: sticky;
  top: 86px; /* subpage 헤더 높이 대략 */
}

.seo-toc,
.seo-related {
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #fff;
  box-shadow: var(--shadow-card, 0 8px 30px rgba(15, 23, 42, 0.07));
  border-radius: var(--radius-lg);
  padding: 18px 18px 16px;
  transition: box-shadow 0.25s ease, border-color 0.2s ease;
}

.seo-toc:hover,
.seo-related:hover {
  border-color: rgba(12, 142, 207, 0.18);
  box-shadow: 0 10px 32px rgba(12, 142, 207, 0.1);
}

.seo-toc h3,
.seo-related h3 {
  margin: 0 0 10px;
  font-size: 0.95rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.01em;
}

.seo-toc__list,
.seo-related__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.seo-toc__list a,
.seo-related__list a {
  color: #0c8ecf;
  text-decoration: none;
  font-weight: 850;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  line-height: 1.35;
}

.seo-toc__list a:hover,
.seo-related__list a:hover {
  text-decoration: underline;
}

.seo-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 6px;
}

.seo-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(12, 142, 207, 0.22);
  background: rgba(227, 242, 253, 0.55);
  color: #0b4f6c;
  font-size: 12.5px;
  font-weight: 850;
}

/* SEO 구역 내 아코디언(전역 .accordion + 공통 common.js) */
.seo-surface .accordion.seo-accordion {
  margin-top: 4px;
}

.seo-surface .accordion.seo-accordion--spaced {
  margin-top: 14px;
}

.seo-surface .accordion .accordion-item {
  margin-bottom: 10px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.seo-surface .accordion .accordion-item:last-child {
  margin-bottom: 0;
}

.seo-surface .accordion .accordion-item.is-open {
  border-color: #c7d2fe;
  box-shadow: 0 8px 28px rgba(99, 102, 241, 0.12);
}

.seo-surface .accordion .accordion-header {
  padding: 15px 18px;
  font-size: 15px;
  font-weight: 700;
  background: #fafbff;
}

.seo-surface .accordion .accordion-content p {
  font-size: 15px;
  line-height: 1.75;
  color: #4b5563;
}

/* 레거시 정적 FAQ(잔존 시) */
.seo-faq {
  margin-top: 12px;
  padding: 16px 18px 14px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-card, 0 8px 30px rgba(15, 23, 42, 0.05));
}

.seo-faq__item {
  border-top: 1px dashed rgba(15, 23, 42, 0.12);
  padding: 12px 0 8px;
}

.seo-faq__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.seo-faq__q {
  font-weight: 900;
  color: #0f172a;
  margin: 0 0 6px;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.seo-faq__a {
  margin: 0;
  color: #334155;
  line-height: 1.85;
  font-size: 15px;
}

/* 표(캡션 스타일 보조) */
.seo-table-wrap {
  margin-top: 18px;
  max-width: 100%;
  min-width: 0;
  overflow: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #fff;
  box-shadow: var(--shadow-card, 0 8px 30px rgba(15, 23, 42, 0.06));
}

.seo-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.seo-table caption {
  caption-side: top;
  text-align: left;
  padding: 12px 12px 10px;
  font-size: 13px;
  color: #64748b;
  font-weight: 800;
}

.seo-table th,
.seo-table td {
  padding: 12px 12px;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  font-size: 14.5px;
  vertical-align: top;
}

.seo-table th {
  text-align: left;
  color: #0f172a;
  background: rgba(241, 245, 249, 0.75);
  font-weight: 900;
}

/* CTA(카드형: 그라데이션 테두리 + primary 버튼) */
.seo-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 18px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(99, 102, 241, 0.18);
  background: linear-gradient(135deg, rgba(238, 242, 255, 0.95) 0%, rgba(255, 255, 255, 0.95) 55%, rgba(224, 242, 254, 0.55) 100%);
  box-shadow: 0 10px 36px rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-xl);
  padding: 20px 22px 20px;
  margin: 0 0 6px;
  position: relative;
  overflow: hidden;
}

.seo-cta::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #0ea5e9 0%, #6366f1 45%, #7c3aed 100%);
}

.seo-cta__text {
  margin: 0;
  color: #0f172a;
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: 1.02rem;
}

.seo-cta__sub {
  margin: 6px 0 0;
  color: #475569;
  font-size: 14.5px;
  line-height: 1.75;
  font-weight: 600;
  max-width: 42ch;
}

.seo-cta .btn.primary {
  flex-shrink: 0;
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.35);
}

/* 홈 — 참고용 안내 카드 */
.home-notice-card .home-notice-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: #334155;
}

.home-notice-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

@media (max-width: 767px) {
  .home-notice-actions {
    flex-direction: column;
  }

  .home-notice-actions .btn {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}

/* 푸터(레거시 h4/h5 대체) */
.footer-brand__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: #fff;
}