*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans KR', sans-serif; background: #edf1fb; color: #1a2060; }
a { color: inherit; text-decoration: none; }
a:hover { color: #2563eb; }
.page-padding { max-width: 1180px; margin: 0 auto; padding-left: 48px; padding-right: 48px; }
.nav-shell { max-width: 1340px; height: 64px; display: flex; align-items: center; gap: 0; }
.nav-desktop { flex: 1; display: flex; align-items: center; justify-content: center; gap: 20px; font-size: 18px; font-weight: 500; color: #2a3580; white-space: nowrap; margin-left: 24px; }
.nav-cta { flex-shrink: 0; background: #1a2060; color: #fff; border-radius: 8px; padding: 10px 22px; font-size: 18px; font-weight: 700; white-space: nowrap; margin-left: 24px; }
.nav-cta:hover { background: #2563eb; color: #fff; }
.nav-ham { display: none; }
.mobile-menu { display: none; }
.hero { background: linear-gradient(135deg, #0f1640 0%, #1a2060 54%, #1e3a8a 100%); padding: 76px 0; color: #fff; }
.hero-grid { display: grid; grid-template-columns: minmax(220px, 320px) minmax(0, 1fr); gap: 72px; align-items: center; }
.cover-frame { width: 100%; aspect-ratio: 2/3; border-radius: 18px; padding: 18px; background: rgba(255,255,255,0.1); box-shadow: 0 24px 70px rgba(0,0,0,0.3); }
.cover-frame img { width: 100%; height: 100%; object-fit: contain; display: block; border-radius: 8px; background: #f7f8fc; }
.eyebrow { font-size: 16px; font-weight: 800; color: #93c5fd; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 14px; }
.category { display: inline-flex; border-radius: 20px; padding: 6px 14px; font-size: 16px; font-weight: 800; margin-bottom: 18px; background: rgba(147,197,253,0.14); color: #bfdbfe; }
.hero h1 { font-size: clamp(42px, 6vw, 72px); font-weight: 900; line-height: 1.15; letter-spacing: -0.03em; margin-bottom: 12px; word-break: keep-all; }
.subtitle { font-size: 19px; color: rgba(255,255,255,0.68); line-height: 1.6; margin-bottom: 18px; }
.byline { font-size: 19px; color: rgba(255,255,255,0.86); font-weight: 600; line-height: 1.7; margin-bottom: 18px; }
.schedule { display: inline-flex; align-items: center; border-radius: 10px; padding: 10px 14px; background: rgba(37,99,235,0.28); color: #dbeafe; font-size: 16px; font-weight: 800; margin-bottom: 28px; }
.button-row { display: flex; gap: 12px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; border-radius: 10px; padding: 13px 24px; font-size: 17px; font-weight: 800; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: #2563eb; color: #fff; box-shadow: 0 8px 28px rgba(37,99,235,0.35); }
.button-primary:hover { background: #3b72f0; color: #fff; }
.button-secondary { border: 2px solid rgba(255,255,255,0.3); color: #fff; }
.button-secondary:hover { border-color: rgba(255,255,255,0.7); color: #fff; }
.content-section { padding: 76px 0; }
.content-section.white { background: #fff; }
.section-label { font-size: 15px; font-weight: 800; color: #2563eb; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 10px; }
.section-title { font-size: clamp(30px, 4vw, 46px); line-height: 1.25; font-weight: 900; margin-bottom: 20px; word-break: keep-all; }
.lead { max-width: 880px; font-size: 20px; line-height: 1.85; color: #5a6490; }
.info-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(260px, .8fr); gap: 32px; align-items: start; }
.info-card, .thought-card, .question-card { background: #fff; border-radius: 20px; box-shadow: 0 8px 36px rgba(26,32,96,0.08); }
.info-card { padding: 30px; }
.bibliography { display: grid; gap: 0; }
.bibliography div { display: grid; grid-template-columns: 90px minmax(0,1fr); gap: 16px; padding: 13px 0; border-bottom: 1px solid #e3e9f7; }
.bibliography div:last-child { border-bottom: 0; }
.bibliography dt { color: #6b7ab0; font-size: 15px; font-weight: 700; }
.bibliography dd { color: #1a2060; font-size: 16px; font-weight: 700; word-break: keep-all; }
.thought-grid, .question-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; margin-top: 36px; }
.thought-card, .question-card { padding: 28px; }
.thought-number, .question-number { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; background: #edf1fb; color: #2563eb; border-radius: 12px; font-size: 16px; font-weight: 900; margin-bottom: 18px; }
.thought-card h3 { font-size: 21px; line-height: 1.45; margin-bottom: 10px; }
.thought-card p, .question-card p { font-size: 17px; line-height: 1.75; color: #5a6490; }
.question-card p { color: #1a2060; font-weight: 700; }
.application-note { display: inline-flex; margin-top: 18px; padding: 8px 12px; border-radius: 8px; background: #fff5f0; color: #9a4b35; font-size: 14px; font-weight: 800; }
.action-box { margin-top: 28px; padding: 32px; border-radius: 20px; background: #1a2060; color: #fff; box-shadow: 0 14px 40px rgba(26,32,96,0.18); }
.action-box h3 { color: #93c5fd; font-size: 16px; letter-spacing: .08em; margin-bottom: 12px; }
.action-box p { font-size: 20px; line-height: 1.75; font-weight: 700; }
.final-cta { background: linear-gradient(135deg, #0f1640 0%, #1a2060 52%, #1e3a8a 100%); padding: 84px 0; text-align: center; color: #fff; }
.final-cta h2 { font-size: clamp(30px, 4vw, 48px); line-height: 1.3; font-weight: 900; margin-bottom: 16px; }
.final-cta p { font-size: 19px; line-height: 1.75; color: rgba(255,255,255,.68); margin-bottom: 30px; }
@media (max-width: 1120px) and (min-width: 769px) {
  .nav-desktop { gap: 13px; font-size: 16px; margin-left: 14px; }
  .nav-cta { display: none; }
  .hero-grid { gap: 44px; }
}
@media (max-width: 768px) {
  html, body { overflow-x: hidden; }
  * { word-break: keep-all; }
  .page-padding { padding-left: 20px; padding-right: 20px; }
  .nav-desktop, .nav-cta { display: none; }
  .nav-ham { display: flex; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; margin-left: auto; }
  .mobile-menu { display: block; padding: 12px 20px 20px; background: #edf1fb; border-top: 1px solid rgba(26,32,96,.08); }
  .mobile-menu a { display: block; padding: 12px 0; border-bottom: 1px solid rgba(26,32,96,.06); font-size: 17px; font-weight: 600; color: #2a3580; }
  .hero { padding: 50px 0 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .cover-frame { width: min(240px, 74vw); margin: 0 auto; padding: 12px; border-radius: 14px; }
  .hero h1 { font-size: clamp(36px, 11vw, 52px); }
  .subtitle, .byline { font-size: 17px; }
  .button-row { flex-direction: column; }
  .button { width: 100%; }
  .content-section { padding: 60px 0; }
  .info-grid, .thought-grid, .question-grid { grid-template-columns: 1fr; }
  .lead { font-size: 18px; }
  .section-title { font-size: clamp(28px, 8vw, 38px); }
  .info-card, .thought-card, .question-card, .action-box { padding: 24px; }
  .bibliography div { grid-template-columns: 78px minmax(0,1fr); gap: 12px; }
  .action-box p { font-size: 18px; }
  footer .page-padding { flex-direction: column; align-items: flex-start !important; gap: 18px; }
}