:root {
  --navy: #0f172a;
  --navy-soft: #1e293b;
  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --blue-soft: #eff6ff;
  --ink: #172033;
  --muted: #64748b;
  --line: #e2e8f0;
  --line-hover: #94a3b8;
  --bg: #f8fafc;
  --white: #ffffff;
  --yellow: #facc15;
  --radius: 14px;
  --shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3, h4, p { word-break: keep-all; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(20px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: max-content; }
.brand-mark {
  position: relative;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 10px;
  background: var(--navy);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
}
.brand-mark::after {
  content: "";
  position: absolute;
  right: -2px;
  bottom: -2px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--white);
  border-radius: 50%;
  background: var(--yellow);
}
.brand strong, .brand small { display: block; }
.brand strong { font-size: 17px; line-height: 1.1; color: var(--navy); }
.brand small { color: var(--muted); font-size: 12px; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  overflow-x: auto;
  white-space: nowrap;
  color: var(--muted);
  font-size: 14px;
}
.main-nav a {
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}
.main-nav a:hover { color: var(--blue); border-bottom-color: var(--blue); }
.main-nav a:focus-visible,
.button:focus-visible,
.text-button:focus-visible,
.tab:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.24);
  outline-offset: 3px;
}

.hero, .section { padding: clamp(56px, 8vw, 96px) clamp(20px, 5vw, 72px); }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}
.hero-content { max-width: 880px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--blue);
}
h1 {
  max-width: 820px;
  margin: 0;
  color: var(--navy);
  font-size: clamp(36px, 5.5vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}
h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.18;
  letter-spacing: -0.025em;
}
h3 { margin: 10px 0 8px; color: var(--navy); font-size: 21px; line-height: 1.35; letter-spacing: -0.015em; }
h4 { margin: 0 0 6px; font-size: 17px; color: var(--navy); }
.spotlight-text {
  padding: 0 4px;
  background: linear-gradient(180deg, transparent 62%, rgba(250, 204, 21, 0.65) 62%, rgba(250, 204, 21, 0.65) 90%, transparent 90%);
}
.hero-copy {
  max-width: 760px;
  margin: 26px 0 0;
  color: var(--navy-soft);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.6;
}
.hero-note { max-width: 740px; margin: 18px 0 0; color: var(--muted); font-size: 16px; }
.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.hero-metrics span {
  min-width: 136px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  padding: 0 18px;
  font-size: 13px;
  font-weight: 700;
}
.hero-metrics span:first-child { border-left: 0; padding-left: 0; }
.hero-metrics strong {
  display: block;
  color: var(--navy);
  font-size: 24px;
  line-height: 1.1;
}
.hero-actions, .cta-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

.button, .text-button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 12px 20px;
  cursor: pointer;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease, color 160ms ease;
}
.button:hover, .text-button:hover { transform: translateY(-1px); }
.button.primary { background: var(--navy); color: var(--white); }
.button.primary:hover { background: var(--blue); }
.button.secondary, .button.ghost { background: var(--white); color: var(--navy); border-color: #cbd5e1; }
.button.secondary:hover, .button.ghost:hover { border-color: var(--blue); color: var(--blue); }
.button.spotlight { background: var(--yellow); color: var(--navy); border-color: var(--yellow); }
.text-button { min-height: 38px; padding: 0; background: transparent; color: var(--blue); border: 0; }
.text-button::after { content: " →"; }

.hero-panel { display: grid; gap: 14px; }
.hero-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 22px;
  transition: border-color 160ms ease, transform 160ms ease;
}
.hero-card:hover { border-color: var(--line-hover); transform: translateY(-1px); }
.hero-card strong { display: block; margin-top: 8px; color: var(--navy); font-size: 22px; line-height: 1.35; }
.hero-card p { margin: 10px 0 0; color: var(--muted); }
.card-kicker {
  display: inline-flex;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.hero-card-label {
  display: block;
  margin-top: 16px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.hero-number { display: flex; align-items: baseline; gap: 8px; margin-top: 10px; }
.hero-number b { color: var(--navy); font-size: 58px; line-height: 1; letter-spacing: -0.04em; }
.hero-number em { color: var(--muted); font-style: normal; font-weight: 800; }
.status-list,
.meta-points,
.calendar-preview {
  list-style: none;
  margin: 0;
  padding: 0;
}
.hero-status-list {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.hero-status-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
}
.hero-status-list strong {
  margin: 0;
  color: var(--navy);
  font-size: 13px;
  line-height: 1.35;
}
.hero-status-list span { font-weight: 800; }
.hero-status-list em,
.calendar-preview em {
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  padding: 3px 7px;
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
  line-height: 1.2;
  white-space: nowrap;
}
.hero-status-list li:first-child em,
.calendar-preview li:last-child em {
  background: rgba(250, 204, 21, 0.18);
  color: var(--navy);
}
.hero-card.dark { border-color: var(--navy); background: var(--navy); }
.hero-card.dark strong, .hero-card.dark p { color: var(--white); }
.hero-card.dark p { color: #cbd5e1; }
.hero-card.dark .card-kicker { color: var(--yellow); }
.hero-link { display: inline-flex; margin-top: 16px; color: var(--yellow); font-weight: 800; }

.section { max-width: 1280px; margin: 0 auto; }
.section-heading { max-width: 760px; margin-bottom: 28px; }
.section-heading p:not(.eyebrow), .split-section p, .final-cta p { color: var(--muted); font-size: 17px; }
.tabbar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.tab {
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  padding: 8px 13px;
  cursor: pointer;
  font-weight: 800;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}
.tab:hover { border-color: var(--blue); color: var(--blue); }
.tab.active { background: var(--navy); color: var(--white); border-color: var(--navy); }

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.content-grid { grid-template-columns: 1.25fr repeat(2, minmax(0, 0.9fr)); }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .research-box, .status-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}
.card {
  position: relative;
  overflow: hidden;
  padding: 24px;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}
.card:hover { border-color: var(--line-hover); transform: translateY(-1px); }
.card p, .mini-list p, .briefing-list p { margin: 0; color: var(--muted); }
.featured-card {
  grid-row: span 2;
  padding: 28px;
  background: #f8fafc;
  border-color: #cbd5e1;
}
.featured-card h3 { font-size: clamp(25px, 3vw, 34px); line-height: 1.24; }
.featured-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.featured-meta span {
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  color: var(--blue);
  background: var(--white);
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.meta-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.meta-points li {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--navy-soft);
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 800;
}
.article-link { margin-top: 18px; }
.tag, .status {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 900;
}
.tag.light { background: rgba(250, 204, 21, 0.16); color: var(--yellow); }

.exam-section { background: var(--white); }
.exam-section .section-heading, .exam-section .feature-layout { max-width: 1180px; margin-left: auto; margin-right: auto; }
.feature-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr); gap: 22px; }
.feature-main {
  border: 1px solid var(--navy);
  border-radius: var(--radius);
  background: var(--navy);
  padding: 32px;
}
.feature-main h3, .feature-main p { color: var(--white); }
.feature-main p { color: #cbd5e1; }
.mini-list { display: grid; gap: 12px; }
.mini-list article {
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  background: var(--white);
  padding: 18px;
}
.soft-band { max-width: none; background: var(--bg); }
.soft-band > * { max-width: 1180px; margin-left: auto; margin-right: auto; }
.briefing-list { display: grid; gap: 12px; }
.briefing-list article {
  display: grid;
  grid-template-columns: minmax(220px, 0.4fr) minmax(0, 0.6fr);
  gap: 18px;
  align-items: start;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  background: var(--white);
  padding: 20px;
}
.briefing-list h3 { margin: 0; }
.unit-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.unit-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 20px;
}
.unit-grid strong, .unit-grid span { display: block; }
.unit-grid span { margin-top: 8px; color: var(--muted); font-size: 14px; }
.split-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 0.75fr); gap: 30px; align-items: start; }
.research-box, .status-panel { padding: 28px; }
.research-box ul { margin: 14px 0 0; padding-left: 20px; color: var(--muted); }
.status-panel { border-color: var(--navy); background: var(--navy); }
.status-panel h3, .status-panel p { color: var(--white); }
.status-panel p { color: #cbd5e1; }
.status { background: var(--yellow); color: var(--navy); }
.coming-card::after {
  content: "샘플 프리뷰";
  position: absolute;
  top: 18px;
  right: 18px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  padding: 4px 9px;
  font-size: 11px;
  font-weight: 900;
}
.calendar-preview {
  display: grid;
  gap: 9px;
  margin-top: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.calendar-preview li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  gap: 9px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}
.calendar-preview .date {
  color: var(--navy-soft);
  font-weight: 900;
}
.calendar-preview strong {
  color: var(--navy);
  font-size: 14px;
  line-height: 1.35;
}
.final-cta { max-width: none; text-align: center; background: var(--bg); }
.final-cta p { max-width: 720px; margin: 14px auto 0; }
.cta-grid { justify-content: center; }
.site-footer { padding: 30px clamp(20px, 5vw, 72px); background: var(--navy); color: #cbd5e1; }
.site-footer p { margin: 4px 0; }
.site-footer strong { color: var(--white); }
.is-hidden { display: none; }

.article-page { background: var(--white); }
.article-hero {
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(52px, 8vw, 92px) clamp(20px, 5vw, 72px) 36px;
}
.article-back {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}
.article-back::before { content: "< "; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.article-meta span {
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  padding: 5px 9px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
}
.article-lead {
  max-width: 820px;
  margin: 24px 0 0;
  color: var(--navy-soft);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.7;
}
.article-body {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 72px) clamp(58px, 8vw, 96px);
}
.article-section {
  padding: 34px 0;
  border-top: 1px solid var(--line);
}
.article-section h2 {
  max-width: 760px;
  font-size: clamp(26px, 3vw, 36px);
}
.article-section p {
  max-width: 780px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
}
.article-callout {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  background: var(--bg);
  padding: 20px;
}
.article-callout strong {
  display: block;
  color: var(--navy);
}
.article-callout p { margin-top: 8px; }
.article-checklist {
  max-width: 780px;
  margin: 18px 0 0;
  padding-left: 20px;
  color: var(--muted);
}
.article-checklist li { margin-top: 8px; }
.article-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

@media (max-width: 980px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .hero, .feature-layout, .split-section { grid-template-columns: 1fr; }
  .card-grid, .card-grid.four, .content-grid, .unit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .featured-card { grid-row: auto; grid-column: span 2; }
}

@media (max-width: 640px) {
  .hero, .section { padding: 46px 18px; }
  .main-nav { width: 100%; }
  h1 { font-size: clamp(34px, 10vw, 46px); }
  .hero-actions, .cta-grid { flex-direction: column; }
  .button { width: 100%; }
  .hero-metrics span {
    flex: 1 1 100%;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 12px 0 0;
  }
  .hero-metrics span:first-child { border-top: 0; }
  .card-grid, .card-grid.four, .card-grid.two, .content-grid, .unit-grid { grid-template-columns: 1fr; }
  .featured-card { grid-column: auto; }
  .briefing-list article { grid-template-columns: 1fr; }
}