/* =========================
   MSHUB guide pages - dark article UI
========================= */
* { box-sizing: border-box; }
:root {
  --bg: #0b1220;
  --surface: rgba(17, 24, 39, 0.92);
  --surface-2: rgba(23, 32, 51, 0.96);
  --text: #f8fafc;
  --muted: #a7b2c5;
  --soft: #cbd5e1;
  --line: rgba(255,255,255,0.10);
  --brand: #60a5fa;
  --brand-2: #34d399;
  --shadow: 0 22px 60px rgba(0,0,0,0.30);
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Pretendard, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37,99,235,0.25), transparent 30%),
    radial-gradient(circle at top right, rgba(16,185,129,0.14), transparent 28%),
    linear-gradient(180deg, #08111f 0%, #0b1220 48%, #0f172a 100%);
  color: var(--text);
  line-height: 1.78;
}
a { color: inherit; }
.site-hero {
  padding: 22px 20px 54px;
  border-bottom: 1px solid var(--line);
}
.hero-shell,
.content-section,
.footer {
  max-width: 980px;
  margin: 0 auto;
}
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 52px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 950;
  letter-spacing: -0.04em;
  text-decoration: none;
}
.logo::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 0 6px rgba(96,165,250,0.13);
}
.nav-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav-actions a {
  padding: 7px 12px;
  border-radius: 999px;
  color: rgba(255,255,255,0.78);
  text-decoration: none;
  font-size: 13px;
  font-weight: 800;
}
.nav-actions a:hover { background: rgba(255,255,255,0.07); color: #fff; }
.hero-content { max-width: 850px; }
.eyebrow,
.section-label {
  display: inline-flex;
  margin: 0 0 12px;
  color: #93c5fd;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
h1 {
  margin: 0 0 18px;
  font-size: clamp(36px, 5.5vw, 58px);
  line-height: 1.10;
  letter-spacing: -0.065em;
  color: #fff;
}
.lead {
  margin: 0;
  max-width: 780px;
  color: rgba(255,255,255,0.76);
  font-size: clamp(15px, 1.5vw, 18px);
  word-break: keep-all;
}
.content-section { padding: 42px 20px 0; }
.article-card,
.info-card,
.warning-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 34px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}
.article-card h2,
.info-card h2,
.warning-box h2 {
  margin: 34px 0 12px;
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.28;
  letter-spacing: -0.045em;
  color: #fff;
}
.article-card h2:first-child,
.info-card h2:first-child { margin-top: 0; }
.article-card h3,
.info-card h3 {
  margin: 26px 0 10px;
  font-size: 21px;
  color: #eaf2ff;
}
p, li {
  color: var(--soft);
  font-size: 16px;
  word-break: keep-all;
}
p { margin: 0 0 18px; }
ul, ol { margin: 10px 0 22px; padding-left: 22px; }
strong { color: #fff; }
.note-box,
.key-box {
  margin: 24px 0;
  padding: 20px;
  border-radius: 18px;
  background: rgba(96,165,250,0.09);
  border: 1px solid rgba(96,165,250,0.18);
}
.key-box {
  background: rgba(52,211,153,0.08);
  border-color: rgba(52,211,153,0.18);
}
.warning-box {
  margin-bottom: 44px;
  padding: 24px;
  background: linear-gradient(135deg, rgba(245,158,11,0.08), transparent 62%), var(--surface);
}
.warning-box h2 { font-size: clamp(20px, 2.2vw, 26px); margin-top: 0; }
.warning-box p { font-size: 14.5px; line-height: 1.75; }
.footer {
  padding: 22px 20px 46px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.footer a { color: var(--brand); text-decoration: none; font-weight: 800; margin: 0 8px; }
@media (max-width: 860px) {
  .top-nav { flex-direction: column; align-items: flex-start; margin-bottom: 38px; }
  .nav-actions { justify-content: flex-start; }
  .site-hero { padding: 20px 16px 42px; }
  .content-section { padding: 30px 16px 0; }
  .article-card,
  .info-card,
  .warning-box { padding: 22px; border-radius: 18px; }
  h1 { font-size: 36px; }
}


/* =========================
   Final layout polish: guide pages
========================= */
:root {
  --guide-container: 980px;
  --guide-inner: calc(var(--guide-container) - 40px);
}

.hero-shell,
.content-section,
.footer {
  max-width: var(--guide-container);
}

.content-section.warning-box {
  max-width: var(--guide-inner);
  margin: 26px auto 48px;
  padding: 22px 26px;
}

.content-section.warning-box h2 {
  margin-bottom: 8px;
  font-size: clamp(19px, 2vw, 24px);
}

.content-section.warning-box p {
  font-size: 14.5px;
  line-height: 1.75;
}

.info-card,
.article-card {
  overflow: hidden;
}

@media (max-width: 860px) {
  .content-section.warning-box {
    max-width: calc(100% - 32px);
    margin: 22px 16px 42px;
    padding: 20px;
  }
}