:root {
  --navy: #173a88;
  --navy-dark: #071735;
  --blue: #2449d8;
  --gold: #f2ca3f;
  --gold-pale: #f6e6a8;
  --red: #c31f35;
  --ink: #171a20;
  --muted: #626874;
  --paper: #fcfbf8;
  --soft: #f2f3f5;
  --line: #d9dde2;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Pretendard Variable", Pretendard, "Malgun Gothic", "Apple SD Gothic Neo", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  letter-spacing: -.01em;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed;
  left: 16px; top: -60px;
  z-index: 1000;
  padding: 12px 16px;
  background: var(--gold);
  font-weight: 700;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  color: white;
  background: rgba(8,26,56,.92);
  border-bottom: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(12px);
  transition: background .25s ease, box-shadow .25s ease;
}
.site-header.scrolled { background: rgba(6,20,47,.98); box-shadow: 0 10px 30px rgba(0,0,0,.16); }
.nav-inner {
  width: min(var(--max), calc(100% - 48px));
  height: 76px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  transition: height .25s ease;
}
.site-header.scrolled .nav-inner { height: 68px; }
.wordmark { display: inline-flex; align-items: center; gap: 12px; }
.wordmark strong { font-size: 23px; letter-spacing: -.04em; }
.wordmark strong::after {
  content: "";
  width: 5px; height: 5px;
  margin-left: 3px;
  border-radius: 50%;
  display: inline-block;
  background: var(--gold);
}
.wordmark span { padding-left: 12px; border-left: 1px solid currentColor; font-size: 9px; font-weight: 700; letter-spacing: .13em; opacity: .7; }
.main-nav { display: flex; align-items: center; gap: 29px; }
.main-nav > a { position: relative; font-size: 12px; font-weight: 700; letter-spacing: .01em; }
.main-nav > a:not(.nav-contact) { opacity: .82; }
.main-nav > a:not(.nav-contact):hover { opacity: 1; }
.main-nav > a:not(.nav-contact)::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: -9px;
  height: 1px;
  background: var(--gold);
  transition: right .2s ease;
}
.main-nav > a:not(.nav-contact):hover::after { right: 0; }
.nav-contact {
  padding: 12px 18px;
  color: var(--navy-dark);
  background: var(--gold);
  transition: background .2s ease, transform .2s ease;
}
.nav-contact:hover { background: #e4c271; transform: translateY(-1px); }
.menu-button { display: none; }

.hero {
  position: relative;
  color: white;
  background:
    radial-gradient(circle at 82% 18%, rgba(36,73,216,.38), transparent 31%),
    linear-gradient(120deg, #06142f 0%, #09245a 60%, #123991 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .055;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 82px 82px;
  mask-image: linear-gradient(90deg, black, transparent 70%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 48px));
  min-height: 790px;
  margin: auto;
  padding: 150px 0 90px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
  gap: clamp(50px, 8vw, 105px);
  align-items: center;
}
.hero-copy { min-width: 0; }
.hero-logo {
  width: min(100%, 620px);
  height: auto;
  margin: -24px 0 -8px -10px;
  display: block;
  filter: drop-shadow(0 22px 30px rgba(0,0,0,.3));
}
.hero-theme {
  margin: 6px 0 0;
  color: rgba(255,255,255,.9);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(17px, 1.7vw, 23px);
  font-weight: 700;
  letter-spacing: .18em;
}
.hero-theme strong { color: #ff4153; font-weight: inherit; }
.label {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .15em;
}
.hero .label { color: var(--gold); }
.hero h1 {
  margin: 0;
  font-size: clamp(68px, 8.5vw, 118px);
  line-height: .82;
  letter-spacing: -.075em;
  font-weight: 900;
  text-wrap: balance;
}
.hero h1 span, .hero h1 em { display: block; }
.hero h1 em { color: var(--gold); font-style: normal; }
.hero-en {
  margin: 24px 0 0;
  color: rgba(255,255,255,.86);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .09em;
}
.hero-summary {
  max-width: 610px;
  margin: 38px 0 0;
  padding-left: 20px;
  border-left: 1px solid rgba(213,173,85,.65);
  color: rgba(255,255,255,.7);
  font-size: 16px;
  line-height: 1.85;
  word-break: keep-all;
}
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 10px; }
.button {
  min-height: 52px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .01em;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.button-gold { color: var(--navy-dark); background: var(--gold); }
.button-gold:hover { background: #e4c271; }
.button-ghost { color: white; border-color: rgba(255,255,255,.34); }
.button-ghost:hover { border-color: var(--gold); }
.button:hover { transform: translateY(-2px); }
.hero-facts {
  max-width: 680px;
  margin: 52px 0 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,.22);
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.hero-facts div { padding: 19px 18px 17px 0; min-width: 0; }
.hero-facts div:not(:first-child) { padding-left: 18px; border-left: 1px solid rgba(255,255,255,.12); }
.hero-facts dt { margin-bottom: 8px; color: var(--gold); font-size: 9px; font-weight: 800; letter-spacing: .12em; }
.hero-facts dd { margin: 0; font-size: 13px; font-weight: 700; line-height: 1.45; }
.poster-preview {
  --poster-shift: 0px;
  width: 100%;
  max-width: 390px;
  margin: 0 0 0 auto;
  padding: 9px;
  color: var(--ink);
  background: white;
  box-shadow: 22px 26px 0 rgba(0,0,0,.23), 0 0 0 1px rgba(242,202,63,.5);
  transform: translateY(calc(5px + var(--poster-shift))) rotate(.35deg);
  transition: transform .12s linear;
}
.poster-preview a { display: block; max-height: 550px; overflow: hidden; }
.poster-preview img { width: 100%; height: auto; }
.poster-preview figcaption { padding: 13px 3px 3px; display: flex; justify-content: space-between; font-size: 9px; font-weight: 800; letter-spacing: .05em; }
.poster-preview figcaption span:last-child { color: var(--red); }

.campaign-strip {
  overflow: hidden;
  color: var(--navy-dark);
  background: var(--gold);
  border-block: 1px solid var(--navy-dark);
}
.campaign-strip > div {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 3vw, 42px);
}
.campaign-strip span { font-size: 13px; font-weight: 900; letter-spacing: .08em; }
.campaign-strip i { color: var(--red); font-size: 18px; font-style: normal; font-weight: 900; }

.section { padding: 135px max(24px, calc((100% - var(--max)) / 2)); }
section[id] { scroll-margin-top: 76px; }
.section-title .label::before {
  content: "";
  width: 22px; height: 1px;
  margin-right: 10px;
  display: inline-block;
  vertical-align: middle;
  background: currentColor;
}
.section-title h2 {
  max-width: 800px;
  margin: 0;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.1;
  letter-spacing: -.055em;
  word-break: keep-all;
  text-wrap: balance;
}
.section-title > p:last-child:not(.label) { margin: 20px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.about { display: grid; grid-template-columns: .82fr 1.18fr; gap: 10%; align-items: start; }
.about-content > p { max-width: 650px; margin: 0 0 14px; color: var(--muted); font-size: 16px; line-height: 1.85; word-break: keep-all; }
.about-content > p:first-child { color: var(--ink); font-size: 19px; font-weight: 700; }
.journey { margin-top: 58px; display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.journey div { position: relative; padding: 23px 16px 23px 0; border-right: 1px solid var(--line); }
.journey div:last-child { border-right: 0; padding-left: 16px; }
.journey div:not(:first-child) { padding-left: 16px; }
.journey span, .journey strong, .journey small { display: block; }
.journey span { margin-bottom: 22px; color: var(--blue); font-family: Georgia, "Times New Roman", serif; font-size: 12px; font-weight: 700; }
.journey strong { font-size: 18px; }
.journey small { margin-top: 6px; color: var(--muted); font-size: 11px; }

.program { color: white; background: #0d1220; border-block: 0; }
.program .label { color: var(--gold); }
.program .section-title h2 { color: white; }
.program .section-title > p:last-child:not(.label) { color: rgba(255,255,255,.55); }
.program-title { display: block; }
.program-title .label { margin-bottom: 22px; }
.program-list {
  margin-top: 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.program-list article {
  min-height: 330px;
  padding: 28px;
  border: 0;
  color: white;
  background: var(--blue);
  display: flex;
  flex-direction: column;
  transition: transform .25s ease;
}
.program-list article:nth-child(2) { color: var(--navy-dark); background: var(--gold); }
.program-list article:nth-child(3) { color: var(--ink); background: #f4f1e9; }
.program-list article:nth-child(4) { background: var(--red); }
.program-list article:hover { transform: translateY(-4px); }
.program-number { color: currentColor; font-family: Georgia, "Times New Roman", serif; font-size: 15px; font-weight: 700; opacity: .72; }
.program-list article > div { margin-top: auto; display: block; }
.program-en { margin: 0 0 14px; color: currentColor; font-size: 9px; font-weight: 800; letter-spacing: .12em; opacity: .7; }
.program-list h3 { margin: 0; font-size: 31px; line-height: 1.15; letter-spacing: -.055em; }
.program-list article > div > p:last-child { max-width: 470px; margin: 18px 0 0; color: currentColor; font-size: 13px; line-height: 1.75; word-break: keep-all; opacity: .72; }

.schedule-grid { margin-top: 70px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.day-card { border: 1px solid var(--line); background: white; box-shadow: 0 12px 35px rgba(16,32,59,.06); }
.day-card header { padding: 25px 28px; color: white; background: var(--navy); display: flex; gap: 25px; align-items: center; }
.day-card.day-two header { background: var(--red); }
.day-card header > span { padding-right: 22px; border-right: 1px solid rgba(255,255,255,.35); font-size: 13px; font-weight: 900; }
.day-card header strong, .day-card header small { display: block; }
.day-card header strong { font-size: 18px; }
.day-card header small { margin-top: 5px; font-size: 10px; font-weight: 500; opacity: .7; }
.day-card ol { margin: 0; padding: 10px 28px 25px; list-style: none; }
.day-card li { padding: 19px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 65px 1fr; gap: 18px; }
.day-card li:last-child { border-bottom: 0; }
.day-card time { color: var(--blue); font-size: 12px; font-weight: 800; }
.day-two time { color: var(--red); }
.day-card li span { font-size: 13px; font-weight: 700; line-height: 1.5; }
.poster-link {
  margin-top: 22px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 700;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.poster-link:hover { color: var(--navy); border-color: var(--gold); background: #fbf8f0; }
.poster-link span { color: var(--red); }

.guide { color: white; background: var(--navy-dark); }
.guide .label { color: var(--gold); }
.guide-grid { margin: 65px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.25); border-left: 1px solid rgba(255,255,255,.25); }
.guide-grid > div { min-height: 150px; padding: 26px; border-right: 1px solid rgba(255,255,255,.22); border-bottom: 1px solid rgba(255,255,255,.22); transition: background .2s ease; }
.guide-grid > div:hover { background: rgba(255,255,255,.045); }
.guide-grid .guide-wide { grid-column: span 2; }
.guide-grid dt { margin-bottom: 32px; color: var(--gold); font-size: 9px; font-weight: 800; letter-spacing: .12em; }
.guide-grid dd { margin: 0; font-size: 16px; font-weight: 700; line-height: 1.6; word-break: keep-all; }

.contact {
  padding: 85px max(24px, calc((100% - var(--max)) / 2));
  color: var(--navy-dark);
  background: linear-gradient(100deg, #d3aa50, #e2c474);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}
.contact .label { color: var(--red); }
.contact h2 { margin: 0; font-size: clamp(34px, 4vw, 52px); line-height: 1.15; letter-spacing: -.055em; }
.contact p:last-child { margin: 18px 0 0; font-size: 13px; }
.contact > a { min-width: 310px; padding: 25px 28px; border: 2px solid var(--navy-dark); display: block; }
.contact > a { transition: color .2s ease, background .2s ease, transform .2s ease; }
.contact > a:hover { color: white; background: var(--navy-dark); transform: translateY(-2px); }
.contact > a span, .contact > a strong { display: block; }
.contact > a span { margin-bottom: 8px; font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.contact > a strong { font-size: 27px; letter-spacing: -.03em; }

.faq { display: grid; grid-template-columns: .7fr 1.3fr; gap: 9%; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list article { border-bottom: 1px solid var(--line); }
.faq-list h3 { margin: 0; }
.faq-list button {
  width: 100%;
  padding: 25px 2px;
  border: 0;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: color .2s ease;
}
.faq-list button:hover { color: var(--blue); }
.faq-list button i { position: relative; width: 18px; height: 18px; flex: 0 0 auto; }
.faq-list button i::before, .faq-list button i::after { content: ""; position: absolute; top: 8px; left: 1px; width: 16px; height: 2px; background: var(--ink); transition: transform .2s; }
.faq-list button i::after { transform: rotate(90deg); }
.faq-list button[aria-expanded="true"] i::after { transform: rotate(0); }
.answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .25s; }
.answer p { margin: 0; padding: 0 42px 0 2px; overflow: hidden; color: var(--muted); font-size: 13px; line-height: 1.8; word-break: keep-all; transition: padding .25s; }
.faq-list article.open .answer { grid-template-rows: 1fr; }
.faq-list article.open .answer p { padding-bottom: 25px; }

footer { padding: 55px max(24px, calc((100% - var(--max)) / 2)); color: rgba(255,255,255,.6); background: #050d1c; border-top: 1px solid rgba(255,255,255,.08); }
.footer-inner { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; align-items: start; }
.footer-wordmark { color: white; }
.footer-inner p { margin: 0; font-size: 11px; line-height: 1.8; }
.footer-inner > div:last-child { justify-self: end; display: flex; flex-direction: column; align-items: flex-end; font-size: 11px; line-height: 1.8; }
.footer-inner a { color: white; font-size: 14px; font-weight: 700; }

.motion-ready .scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2,.75,.25,1);
}
.motion-ready .scroll-reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .nav-inner { height: 70px; }
  .menu-button {
    width: 42px; height: 42px;
    padding: 10px;
    border: 0;
    background: transparent;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
  }
  .menu-button i { width: 100%; height: 2px; background: white; transition: transform .2s; }
  .menu-button[aria-expanded="true"] i:first-of-type { transform: translateY(4.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] i:last-of-type { transform: translateY(-4.5px) rotate(-45deg); }
  .main-nav {
    position: absolute;
    top: 70px; left: 0; right: 0;
    padding: 22px 24px;
    color: var(--ink);
    background: white;
    border-bottom: 1px solid var(--line);
    display: grid;
    gap: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: .2s ease;
  }
  .main-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .main-nav > a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav-contact { margin-top: 12px; padding-inline: 16px !important; border: 0 !important; text-align: center; }
  .hero-inner { grid-template-columns: 1fr .6fr; gap: 45px; }
  .hero-facts { grid-template-columns: 1fr 1fr; }
  .hero-facts div:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.12); }
  .hero-facts div:nth-child(4) { border-top: 1px solid rgba(255,255,255,.12); }
  .poster-preview a { max-height: 450px; }
  .about { grid-template-columns: 1fr; gap: 50px; }
  .guide-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-inner, .hero-inner { width: calc(100% - 40px); }
  .wordmark span { display: none; }
  .hero-inner { min-height: auto; padding: 110px 0 70px; grid-template-columns: 1fr; }
  .hero-logo { width: 100%; margin: -12px 0 0; }
  .hero-theme { margin-top: 4px; font-size: 15px; letter-spacing: .12em; }
  .hero-summary { margin-top: 28px; font-size: 15px; }
  .hero-facts { margin-top: 40px; grid-template-columns: 1fr; }
  .hero-facts div, .hero-facts div:not(:first-child), .hero-facts div:nth-child(3), .hero-facts div:nth-child(4) { padding: 14px 0; border-left: 0; border-top: 0; border-bottom: 1px solid rgba(255,255,255,.18); display: grid; grid-template-columns: 65px 1fr; }
  .hero-facts dt { margin: 0; }
  .poster-preview { max-width: none; margin: 10px 0 0; box-shadow: 10px 12px 0 rgba(0,0,0,.2); transform: none; }
  .poster-preview a { max-height: 460px; }
  .section { padding: 90px 20px; }
  .section-title h2 { font-size: 39px; }
  .about-content > p:first-child { font-size: 17px; }
  .journey { grid-template-columns: 1fr 1fr; }
  .journey div, .journey div:not(:first-child), .journey div:last-child { padding: 20px 12px; border-bottom: 1px solid var(--line); }
  .journey div:nth-child(2) { border-right: 0; }
  .program-title { display: block; }
  .program-title .label { margin-bottom: 22px; }
  .program-title > p:last-child { margin-top: 18px; }
  .program-list { margin-top: 50px; }
  .program-list { grid-template-columns: 1fr; }
  .program-list article { min-height: 285px; }
  .program-list article:hover { transform: none; }
  .program-list h3 { font-size: 27px; }
  .schedule-grid { grid-template-columns: 1fr; margin-top: 50px; }
  .day-card header { padding: 22px 20px; }
  .day-card ol { padding-inline: 20px; }
  .day-card li { grid-template-columns: 56px 1fr; gap: 12px; }
  .guide-grid { margin-top: 50px; grid-template-columns: 1fr; }
  .guide-grid .guide-wide { grid-column: auto; }
  .guide-grid > div { min-height: 125px; }
  .contact { padding: 70px 20px; display: block; }
  .contact h2 { font-size: 36px; }
  .contact > a { min-width: 0; margin-top: 35px; }
  .faq { grid-template-columns: 1fr; gap: 45px; }
  .faq-list button { font-size: 15px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-inner > div:last-child { justify-self: start; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
  .motion-ready .scroll-reveal { opacity: 1; transform: none; }
}