/* ============================================================
   Settli Blog — Shared CSS
   ============================================================ */

:root {
  --bg: #fafbfc; --surface: #fff; --surface-alt: #f6f8fb;
  --border: #e5e9f0; --text: #0a1929; --text-muted: #475569;
  --text-dim: #94a3b8; --primary: #0A1F38; --navy-50: #f0f4f9;
  --navy-200: #c3d0e1; --navy-700: #1F3A5F; --accent: #2563eb;
  --success: #059669; --warn: #d97706; --danger: #dc2626;
}
* { box-sizing: border-box; }
body { margin: 0; padding: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans KR', 'Noto Sans Arabic', 'Noto Sans SC', sans-serif;
  line-height: 1.75; font-size: 16px; }

/* ─── Top navigation bar (same pattern as main site) ─── */
.topnav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.nav-brand {
  display: flex; align-items: center; gap: 8px;
  color: var(--navy-700); text-decoration: none;
}
.nav-brand img { width: 22px; height: 22px; }
.nav-brand-text {
  font-weight: 700; letter-spacing: 0.28em; font-size: 13px; color: var(--navy-700);
}
.nav-links { display: flex; gap: 4px; }
.nav-link {
  color: var(--text-muted); text-decoration: none;
  font-size: 13px; font-weight: 600;
  padding: 7px 12px; border-radius: 6px; transition: all 0.15s;
  background: transparent; border: none; cursor: pointer;
}
.nav-link:hover { background: var(--surface-alt); color: var(--navy-700); }
.nav-lang { position: relative; }
.nav-lang-btn {
  display: flex; align-items: center; gap: 6px;
  background: transparent; border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px;
  font-size: 12px; color: var(--text-muted); cursor: pointer;
  transition: all 0.15s;
}
.nav-lang-btn:hover { background: var(--surface-alt); border-color: var(--navy-200); }
.nav-lang-arrow { font-size: 9px; opacity: 0.6; }
.nav-lang-menu {
  position: absolute; top: calc(100% + 6px); right: 0;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 4px;
  box-shadow: 0 6px 24px rgba(10,31,56,.12), 0 2px 6px rgba(10,31,56,.06);
  min-width: 150px; display: none; z-index: 100;
}
.nav-lang-menu.open { display: block; }
.nav-lang-menu a {
  display: block; width: 100%; text-align: left;
  padding: 9px 12px; border-radius: 6px;
  font-size: 13px; color: var(--text-muted); text-decoration: none;
}
.nav-lang-menu a:hover { background: var(--surface-alt); color: var(--navy-700); }
.nav-lang-menu a.active { background: var(--navy-50); color: var(--navy-700); font-weight: 600; }
html[dir="rtl"] .nav-lang-menu { right: auto; left: 0; }
html[dir="rtl"] .nav-lang-menu a { text-align: right; }

/* ─── Hero (listing page) ─── */
.hero { background: var(--surface); padding: 56px 20px 40px; text-align: center; border-bottom: 1px solid var(--border); }
.hero h1 { font-size: 38px; font-weight: 800; color: var(--primary); margin: 0 0 12px; letter-spacing: -0.02em; }
.hero p { font-size: 16px; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

/* ─── Container ─── */
.container { max-width: 900px; margin: 0 auto; padding: 40px 20px 80px; }
.article-wrap { max-width: 720px; margin: 0 auto; padding: 32px 20px 80px; }

/* ─── Article ─── */
.breadcrumb { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; }
.breadcrumb a { color: var(--text-dim); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }

h1.article-title { font-size: 32px; font-weight: 800; color: var(--primary); margin: 0 0 16px; letter-spacing: -0.02em; line-height: 1.25; }
.meta { font-size: 13px; color: var(--text-dim); margin-bottom: 32px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.meta time { color: var(--text-muted); }

article h2 { font-size: 24px; font-weight: 700; color: var(--primary); margin: 48px 0 16px; letter-spacing: -0.01em; }
article h3 { font-size: 18px; font-weight: 700; color: var(--text); margin: 32px 0 12px; }
article p { margin: 0 0 16px; color: var(--text-muted); }
article p strong { color: var(--text); }
article ul, article ol { margin: 0 0 20px; padding-left: 24px; color: var(--text-muted); }
article li { margin-bottom: 8px; }
article a { color: var(--accent); }
article a:hover { text-decoration: underline; }
article code { background: var(--surface-alt); padding: 2px 6px; border-radius: 4px; font-size: 14px; color: var(--primary); font-family: monospace; }

html[dir="rtl"] article ul,
html[dir="rtl"] article ol { padding-left: 0; padding-right: 24px; }

.callout { padding: 16px 20px; border-radius: 10px; margin: 20px 0; border-left: 4px solid; }
html[dir="rtl"] .callout { border-left: none; border-right: 4px solid; }
.callout.tip { background: #ecfdf5; border-color: var(--success); }
.callout.tip strong { color: var(--success); }
.callout.warn { background: #fffbeb; border-color: var(--warn); }
.callout.warn strong { color: var(--warn); }
.callout.info { background: #eff6ff; border-color: var(--accent); }
.callout.info strong { color: var(--accent); }
.callout p:last-child { margin-bottom: 0; }

table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; background: var(--surface); border-radius: 10px; overflow: hidden; box-shadow: 0 1px 3px rgba(10,31,56,.04); }
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
html[dir="rtl"] th, html[dir="rtl"] td { text-align: right; }
th { background: var(--surface-alt); color: var(--primary); font-weight: 700; font-size: 13px; }
tr:last-child td { border-bottom: none; }

.toc { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px 24px; margin: 24px 0 40px; }
.toc-title { font-size: 13px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px; }
.toc ol { margin: 0; padding-left: 18px; color: var(--text); }
.toc li { margin-bottom: 6px; font-size: 14px; }
.toc a { color: var(--text); text-decoration: none; }
.toc a:hover { color: var(--accent); text-decoration: underline; }

.settli-cta { background: linear-gradient(135deg, #0A1F38 0%, #1F3A5F 100%); color: #fff; padding: 28px; border-radius: 14px; text-align: center; margin: 40px 0; }
.settli-cta h3 { color: #fff; font-size: 20px; margin: 0 0 8px; }
.settli-cta p { color: #cbd5e1; margin: 0 0 16px; font-size: 14px; }
.settli-cta a.btn { display: inline-block; background: #fff; color: var(--primary); text-decoration: none; padding: 12px 28px; border-radius: 8px; font-weight: 700; font-size: 14px; }
.settli-cta a.btn:hover { background: var(--surface-alt); }

.newsletter { background: var(--surface); border: 2px solid var(--accent); border-radius: 14px; padding: 24px; margin: 32px 0; }
.newsletter h3 { margin: 0 0 8px; font-size: 18px; color: var(--primary); }
.newsletter p { font-size: 14px; margin-bottom: 16px; color: var(--text-muted); }
.nl-form { display: flex; gap: 8px; }
.nl-form input[type=email] { flex: 1; padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; }
.nl-form button { background: var(--accent); color: #fff; border: none; padding: 11px 20px; border-radius: 8px; font-weight: 600; font-size: 14px; cursor: pointer; }
.nl-consent { font-size: 12px; color: var(--text-dim); margin-top: 8px; display: flex; align-items: center; gap: 6px; }

/* ─── Posts grid (listing page) ─── */
.posts { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; }
.post-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 24px; transition: all 0.15s; text-decoration: none; color: inherit; display: block; }
.post-card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(10,31,56,.08); border-color: var(--accent); }
.post-card .tag { display: inline-block; padding: 4px 10px; background: #eff6ff; color: var(--accent); border-radius: 6px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px; }
.post-card h2 { font-size: 18px; margin: 0 0 8px; color: var(--primary); font-weight: 700; line-height: 1.4; }
.post-card p { font-size: 14px; color: var(--text-muted); margin: 0 0 16px; line-height: 1.6; }
.post-card .meta { font-size: 12px; color: var(--text-dim); padding: 0; border: none; }

.coming-soon { background: var(--surface-alt); border: 2px dashed var(--border); border-radius: 14px; padding: 24px; text-align: center; }
.coming-soon h3 { color: var(--text-muted); margin: 0 0 8px; font-size: 16px; }
.coming-soon p { color: var(--text-dim); margin: 0; font-size: 13px; }

/* ─── Related posts section (auto-injected by blog.js) ─── */
#related-posts h2 { font-size: 22px; color: var(--primary); }
#related-posts .post-card { padding: 20px; }
#related-posts .post-card h2 { font-size: 17px; margin: 0 0 8px; }
#related-posts .post-card p { font-size: 13px; }
#related-posts .post-card .meta { font-size: 12px; }
#related-posts .posts { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

/* ─── Tag chip variants (auto-set by blog.js) ─── */
.tag[data-tag] { transition: opacity 0.15s; }

.newsletter-band { background: var(--primary); color: #fff; padding: 40px 20px; text-align: center; margin-top: 40px; border-radius: 14px; }
.newsletter-band h2 { color: #fff; margin: 0 0 8px; font-size: 22px; }
.newsletter-band p { color: #cbd5e1; margin: 0 0 20px; font-size: 14px; }
.newsletter-band .nl-form { max-width: 460px; margin: 0 auto; }
.newsletter-band .nl-form input { border: none; }
.newsletter-band .nl-consent { color: #cbd5e1; justify-content: center; }

/* ─── Footer ─── */
.footer { background: var(--surface-alt); border-top: 1px solid var(--border); padding: 28px 20px; text-align: center; font-size: 13px; color: var(--text-dim); }
.footer a { color: var(--text-muted); text-decoration: none; margin: 0 8px; }

/* ─── Mobile ─── */
@media (max-width: 640px) {
  .hero { padding: 36px 16px 28px; }
  .hero h1 { font-size: 28px; }
  h1.article-title { font-size: 26px; }
  article h2 { font-size: 20px; }
  .article-wrap { padding: 24px 16px 60px; }
  .topnav { padding: 10px 14px; }
  .nav-brand-text { display: none; }
  .nav-link { padding: 6px 10px; font-size: 12px; }
  .nav-lang-name { display: none; }
  .nl-form { flex-direction: column; }
}