:root {
  --sky: #3ea8e0;
  --sky-light: #eaf6fd;
  --sky-mid: #cfeaf9;
  --ink: #1b2733;
  --ink-soft: #5b6b78;
  --white: #ffffff;
  --border: #e3eef4;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(62, 168, 224, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; }

a { color: inherit; text-decoration: none; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-weight: 800;
  font-size: 22px;
  color: var(--sky);
  letter-spacing: -0.5px;
}
.logo span { color: var(--ink); }

nav.main-nav ul {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav.main-nav a {
  font-weight: 600;
  font-size: 15px;
  color: var(--ink-soft);
  transition: color 0.2s;
}
nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--sky);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switcher select {
  border: 1px solid var(--border);
  background: var(--sky-light);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  max-width: 132px;
}

.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: 10px;
  color: var(--ink);
  cursor: pointer;
  flex-shrink: 0;
}

.mobile-nav {
  display: none;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.mobile-nav ul { list-style: none; margin: 0; padding: 8px 24px 16px; }
.mobile-nav li { border-bottom: 1px solid var(--border); }
.mobile-nav li:last-child { border-bottom: none; }
.mobile-nav a {
  display: block;
  padding: 14px 4px;
  font-weight: 600;
  font-size: 15px;
  color: var(--ink-soft);
}
.mobile-nav a.active { color: var(--sky); }
.mobile-nav.open { display: block; }

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--sky-light) 0%, var(--white) 60%);
  padding: 96px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--sky);
  background: var(--sky-mid);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 42px;
  line-height: 1.3;
  margin: 0 0 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.hero p.lead {
  font-size: 17px;
  color: var(--ink-soft);
  margin: 0 0 32px;
  max-width: 480px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-primary {
  background: var(--sky);
  color: var(--white);
  box-shadow: var(--shadow);
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-outline {
  border: 1px solid var(--sky);
  color: var(--sky);
}

.hero-art {
  height: 340px;
  width: 100%;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--sky) 0%, #7fd0f2 50%, var(--sky-light) 100%);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  display: block;
  object-fit: cover;
}
div.hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.35), transparent 60%);
}

.page-banner {
  width: 100%;
  max-height: 340px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: block;
  margin-top: 32px;
}

.section-img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: block;
  object-fit: cover;
}

.split-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.split-row.reverse { direction: rtl; }
.split-row.reverse > * { direction: ltr; }

@media (max-width: 860px) {
  .split-row { grid-template-columns: 1fr; }
}

.cta-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  background: linear-gradient(135deg, var(--sky) 0%, #6fc4ea 100%);
  border-radius: 24px;
  padding: 48px;
  color: var(--white);
  overflow: hidden;
}
.cta-banner img { width: 100%; border-radius: 16px; display: block; }
.cta-banner h2 { font-size: 26px; margin: 0 0 14px; }
.cta-banner p { font-size: 14px; opacity: 0.92; margin: 0 0 24px; }
.cta-banner .btn-primary { background: var(--white); color: var(--sky); }
@media (max-width: 860px) {
  .cta-banner { grid-template-columns: 1fr; padding: 32px; }
}

/* Sections */
section.block {
  padding: 72px 0;
  border-top: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  margin: 0 0 12px;
}
.section-head p {
  color: var(--ink-soft);
  font-size: 15px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--sky-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
}
.card h3 {
  font-size: 18px;
  margin: 0 0 10px;
  color: var(--ink);
}
.card p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}
.card .icon-dot {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--sky);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 16px;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}
.info-table tr { border-top: 1px solid var(--border); }
.info-table tr:first-child { border-top: none; }
.info-table td {
  padding: 18px 0;
  font-size: 14px;
}
.info-table td:first-child {
  width: 180px;
  font-weight: 700;
  color: var(--ink);
}
.info-table td:last-child { color: var(--ink-soft); }

/* Blog */
.blog-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.blog-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 4px 14px rgba(20,40,60,0.05);
  transition: transform 0.15s;
}
.blog-card:hover { transform: translateY(-4px); }
.blog-card img { width: 100%; height: 160px; object-fit: cover; display: block; background: var(--sky-mid); }
.blog-card .body { padding: 18px 20px 22px; }
.blog-card .lang-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--sky);
  background: var(--sky-mid);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.blog-card h3 { font-size: 16px; margin: 0 0 8px; }
.blog-card p { font-size: 13px; color: var(--ink-soft); margin: 0; }

.post-header { padding: 56px 0 24px; text-align: center; }
.post-header .lang-tag { margin-bottom: 14px; }
.post-header h1 { font-size: 32px; margin: 0 0 12px; }
.post-header .meta { color: var(--ink-soft); font-size: 13px; }
.post-hero-img { width: 100%; max-height: 420px; object-fit: cover; border-radius: var(--radius); margin: 24px 0 40px; }
.post-body { font-size: 16px; }
.post-body p { margin: 0 0 20px; }
.post-body h2 {
  font-size: 22px;
  margin: 40px 0 16px;
  color: var(--ink);
  font-weight: 800;
}
.post-body a {
  color: var(--sky);
  text-decoration: underline;
  text-decoration-color: var(--sky-mid);
  text-underline-offset: 2px;
}
.post-body a:hover { text-decoration-color: var(--sky); }

.post-toc {
  background: var(--sky-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 26px;
  margin: 24px 0 32px;
}
.post-toc-title {
  font-weight: 800;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--sky);
  margin-bottom: 10px;
}
.post-toc ul { margin: 0; padding-left: 20px; }
.post-toc li { margin-bottom: 6px; font-size: 14px; }
.post-toc a { color: var(--ink); text-decoration: none; }
.post-toc a:hover { color: var(--sky); }

.related-links {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.related-links h3 { font-size: 16px; margin: 0 0 16px; }
.related-links-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.related-links-grid a {
  display: block;
  padding: 12px 14px;
  background: var(--sky-light);
  border-radius: 10px;
  font-size: 13px;
  color: var(--ink);
  border: 1px solid var(--border);
}
.related-links-grid a:hover { border-color: var(--sky); color: var(--sky); }
@media (max-width: 860px) {
  .related-links-grid { grid-template-columns: 1fr 1fr; }
}

.og-link-card {
  display: flex;
  gap: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 28px 0;
  background: var(--sky-light);
  box-shadow: var(--shadow);
}
.og-link-card img { width: 160px; height: 120px; object-fit: cover; flex-shrink: 0; }
.og-link-card .og-body { padding: 14px 18px 14px 0; display: flex; flex-direction: column; justify-content: center; }
.og-link-card .og-domain { font-size: 12px; color: var(--sky); font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.og-link-card .og-title { font-size: 15px; font-weight: 700; margin: 4px 0; color: var(--ink); }
.og-link-card .og-desc { font-size: 13px; color: var(--ink-soft); }

.keywords { display: flex; flex-wrap: wrap; gap: 8px; margin: 32px 0 0; }
.keywords span {
  font-size: 12px;
  background: var(--sky-mid);
  color: var(--sky);
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 600;
}

.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.video-embed iframe {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  border: 0;
}

/* Steps (marketing plan journey) */
.step-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.step-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 16px;
  text-align: center;
  position: relative;
}
.step-num {
  width: 32px;
  height: 32px;
  line-height: 32px;
  border-radius: 50%;
  background: var(--sky);
  color: var(--white);
  font-weight: 800;
  font-size: 14px;
  margin: 0 auto 12px;
}
.step-card h3 { font-size: 15px; margin: 0 0 6px; }
.step-card p { font-size: 12.5px; color: var(--ink-soft); margin: 0; }

/* Disclaimer box */
.disclaimer-box {
  background: var(--sky-light);
  border: 1px solid var(--sky-mid);
  border-radius: var(--radius);
  padding: 28px 32px;
  max-width: 860px;
  margin: 0 auto;
}
.disclaimer-box h3 { margin: 0 0 10px; font-size: 16px; color: var(--ink); }
.disclaimer-box p { margin: 0; font-size: 13.5px; color: var(--ink-soft); line-height: 1.7; }

.rank-tracks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.rank-track h3 { font-size: 16px; margin: 0 0 6px; }
.rank-track > p { font-size: 13.5px; color: var(--ink-soft); margin: 0 0 14px; }
.rank-path {
  text-align: center;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.9;
  background: var(--sky-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  height: 100%;
  box-sizing: border-box;
}
@media (max-width: 860px) {
  .rank-tracks { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .step-row { grid-template-columns: 1fr 1fr; }
}

/* Join page */
.join-region { margin-bottom: 40px; }
.join-region-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--sky);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.join-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.join-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  font-weight: 700;
  font-size: 14px;
}
.join-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--sky);
}
.join-flag { font-size: 20px; }
.join-country { flex: 1; }
.join-arrow { color: var(--sky); font-weight: 800; }
.join-note {
  margin-top: 32px;
  font-size: 13px;
  color: var(--ink-soft);
  text-align: center;
}

/* Footer */
footer.site-footer {
  background: var(--sky-light);
  border-top: 1px solid var(--border);
  padding: 48px 0;
  margin-top: 64px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 13px;
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .card-grid-4 { grid-template-columns: 1fr 1fr; }
  .blog-list { grid-template-columns: 1fr 1fr; }
  nav.main-nav { display: none; }
  .mobile-menu-btn { display: flex; }
  .join-now-btn { display: none; }
  .header-right { gap: 10px; }
  .lang-switcher select { max-width: 96px; padding: 8px 10px; font-size: 12px; }
}

@media (max-width: 560px) {
  .blog-list { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .hero { padding: 56px 0 48px; }
  section.block { padding: 48px 0; }
  .og-link-card { flex-direction: column; }
  .og-link-card img { width: 100%; height: 160px; }
  .admin-stat-row { grid-template-columns: 1fr 1fr; }
  .kw-cat-list { grid-template-columns: 1fr; }
  .admin-table { display: block; overflow-x: auto; white-space: nowrap; }
  .admin-header .container { flex-wrap: wrap; gap: 10px; }
}

.draft-banner {
  background: #fff4dd;
  color: #a1650a;
  font-weight: 700;
  font-size: 13.5px;
  text-align: center;
  padding: 10px 0;
}

/* Admin */
.admin-body {
  background: var(--sky-light);
  min-height: 100vh;
  font-family: inherit;
}
.admin-login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.admin-login-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
}
.admin-login-card h1 { font-size: 20px; margin: 0 0 24px; text-align: center; }
.admin-field { margin-bottom: 16px; }
.admin-field label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 6px; color: var(--ink-soft); }
.admin-field input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  box-sizing: border-box;
}
.admin-field input:focus { outline: 2px solid var(--sky); border-color: var(--sky); }
.admin-error {
  background: #fdecec;
  color: #b3261e;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 16px;
}
.admin-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
.admin-header .container { display: flex; align-items: center; justify-content: space-between; }
.admin-header .logo { font-weight: 800; font-size: 18px; color: var(--sky); }
.admin-main { padding: 36px 0 80px; }
.admin-stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 32px; }
.admin-stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 22px 24px;
  border: 1px solid var(--border);
}
.admin-stat-card .label { font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 700; margin-bottom: 8px; }
.admin-stat-card .value { font-size: 26px; font-weight: 800; color: var(--ink); }
.admin-panel {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 26px 28px;
  margin-bottom: 28px;
}
.admin-panel h2 { font-size: 16px; margin: 0 0 18px; }
.admin-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.status-pill { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 700; }
.status-pill.on { background: #e3f6ea; color: #1c7a3f; }
.status-pill.off { background: #f2f2f2; color: #666; }
.status-pill.running { background: #fff4dd; color: #a1650a; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.admin-table th { text-align: left; padding: 10px 12px; border-bottom: 2px solid var(--border); color: var(--ink-soft); font-size: 12px; text-transform: uppercase; }
.admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.admin-table a { color: var(--sky); }
.btn-sm { padding: 7px 14px; font-size: 12.5px; border-radius: 8px; }
.btn-danger { background: #fdecec; color: #b3261e; border: none; cursor: pointer; }
.btn-danger:hover { background: #fadbdb; }
.btn-neutral { background: var(--sky-light); color: var(--ink); border: 1px solid var(--border); cursor: pointer; }
.btn-neutral:hover { border-color: var(--sky); }
.kw-cat-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 24px; }
.kw-cat-row { display: flex; justify-content: space-between; font-size: 13.5px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.kw-cat-row .bar { flex: 1; height: 6px; background: var(--sky-mid); border-radius: 999px; margin: 0 14px; overflow: hidden; }
.kw-cat-row .bar-fill { height: 100%; background: var(--sky); }
form.inline { display: inline; }