@font-face {
    font-family: 'Ria';
    src: url('../font/RiaSans-Regular.otf') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Ria';
    src: url('../font/RiaSans-Bold.otf') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Ria';
    src: url('../font/RiaSans-ExtraBold.otf') format('woff2');
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

:root {
  --purple: #683da2;
  --purple-deep: #35105d;
  --purple-dark: #5d1693;
  --purple-light: #8d54d5;
  --gold: #f3aa0a;
  --cream: #fff0d3;
  --text: #262626;
  --muted: #707070;
  --line: #e6e6e6;
  --wrap: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: Pretendard, "Noto Sans KR", "Malgun Gothic", Arial, sans-serif;
  line-height: 1.55;
  background: #fff;
  word-break: keep-all;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
img { display: block; max-width: 100%; }
.wrap { width: min(calc(100% - 48px), var(--wrap)); margin: 0 auto; }
.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; }

#overview,#speakers,#program {
  scroll-margin-top: 90px;
}
.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  width: 100%;
  color: #fff;
  background: transparent;
  transition:
    background .3s ease,
    box-shadow .3s ease,
    backdrop-filter .3s ease;
}
.site-header.is-scrolled {
  background: rgba(54, 20, 85, .88);

  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);

  box-shadow: 0 4px 20px rgba(31, 7, 52, .12);
}
.header-inner {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-group {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 0 0 auto;
  line-height: 0;
}
.brand-group img {
  display: block;
  width: auto;
  max-width: none;
}
.brand-wf { height: 31px; margin-left: 0; }
.gnb { 
  font-family: 'Ria';
  display: flex;
  align-items: center;
  gap: 34px;
  font-weight: 400;
  font-size: 14px;
}
.gnb > a, .nav-dropdown-btn { position: relative; padding: 10px 0; }
.gnb > a::after, .nav-dropdown-btn::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 3px;
  height: 2px;
  background: #fff;
  transition: right .2s ease;
}
.gnb > a:hover,
.nav-dropdown:hover .nav-dropdown-btn {
  color: #f7d7a2;

}
.nav-dropdown { position: relative; }
.nav-dropdown-btn { border: 0; background: none; color: #fff; cursor: pointer; }
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  min-width: 150px;
  transform: translate(-50%, 8px);
  padding: 20px 10px;
  border-radius: 8px;
  background: rgba(39, 12, 65, .96);
  box-shadow: 0 12px 30px rgba(0,0,0,.22);
  opacity: 0;
  visibility: hidden;
  transition: .2s ease;
}
.nav-dropdown-menu a { display: block; padding: 9px 12px; border-radius: 6px; font-size: 13px; white-space: nowrap; }
.nav-dropdown-menu a:hover { background: rgba(255,255,255,.1); }
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.is-open .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.menu-toggle { display: none; }
.hero {
  position: relative;
  overflow: hidden;
  padding-top: 90px;
  color: #fff;
   background:
    radial-gradient(900px 520px at 12% 10%, rgba(178, 126, 255, .20), transparent 58%),
    radial-gradient(760px 520px at 88% 18%, rgba(255, 203, 142, .10), transparent 60%),
    radial-gradient(900px 620px at 78% 92%, rgba(117, 67, 190, .34), transparent 62%),
    linear-gradient(135deg, #49206f 0%, #633398 48%, #4f257b 100%);
}
.hero-inner {
  min-height: 625px;
  position: relative;
  display: flex;
  align-items: center;
  padding-top: 38px;
  padding-bottom: 34px;
}
.hero-inner::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 50%;
  right: -80px;
  width: min(55vw, 700px);
  height: 92%;
  transform: translateY(-50%);
  background: url('../images/main_visual.png') no-repeat center / contain;
  pointer-events: none;
  --visual-opacity: 1;
  opacity: 0;
  translate: 18px 10px;
  filter: blur(5px);
  animation: heroVisualIn 1.35s cubic-bezier(.22, 1, .36, 1) .12s forwards;
  will-change: opacity, translate, filter;
}
@keyframes heroVisualIn {
  from {
    opacity: 0;
    translate: 18px 10px;
    filter: blur(5px);
  }
  to {
    opacity: var(--visual-opacity);
    translate: 0 0;
    filter: blur(0);
  }
}
.hero-copy { 
  width: 58%;
  font-family: 'Ria';
  position: relative; z-index: 2; padding-bottom: 10px; }
.hero-year {
  margin: 0 0 2px;
  font-size: clamp(38px, 4.5vw, 56px);
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: -2px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(38px, 4.5vw, 56px);
  line-height: 1.25;
  font-weight: 900;
}
.hero-theme { margin: 38px 0 0; 
  font-size: clamp(25px, 2.2vw, 31px);
  line-height: 1.25; font-weight: 700; }
.hero-sub { margin: 4px 0 0; color: rgba(255,255,255,.84); 
  font-size: clamp(20px, 1.8vw, 25px);
    font-weight: 400;}
.apply-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-width: 170px;
  margin-top: 36px;
  padding: 17px 23px 17px 30px;
  border-radius: 10px;
  background: linear-gradient(135deg, #ee9300, #f9bb13);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 8px 22px rgba(58, 18, 86, .2);
  transition: transform .2s ease, box-shadow .2s ease;
  line-height: 0;
}
.apply-btn span { 
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  line-height: 1;
  font-weight: 300; }
.apply-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(58,18,86,.28); }
.hero-date {
  font-family: 'Ria';
  display: flex;
  align-items: center;
  min-height: 60px;
  text-align: center;
  background: #300053;
  font-size: 17px;
  font-weight: 400;
}
.section { padding: 60px 0; }
.section-title {
  font-family: 'Ria';
  margin: 0 0 42px;
  text-align: center;
  font-size: 25px;
  line-height: 1.2;
  font-weight: 900;
}
.overview {
  position: relative;
  overflow: hidden;

  background-color: #fff0d3;
  background-image: url('../images/intro_bg.png');
  background-repeat: no-repeat;
  background-position: right center;
  background-size: auto 78%;
}
.overview-inner { position: relative; z-index: 1; }
.overview-decoration { 
    position: absolute;
    z-index: -1;
    right: 0;
}
.overview-decoration img { width: 100%; mix-blend-mode: multiply; }
.intro-copy {
    max-width: 1060px;
    margin: 0 auto 62px;
    font-size: 16.5px;
    color: #4b443a;
    line-height: 1.7;
}
.intro-copy p { 
  margin: 0 0 20px;
  line-height: 1.8;
  word-break: keep-all;
}
.intro-copy p:nth-last-child(2) { margin-top: 30px; }
.event-info { border-top: 3px solid #393939; }
.info-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    margin: 0;
    border-bottom: 1px solid rgba(90, 73, 42, .24);
    align-items: center;
}
.info-row dt { 
  font-family: 'Ria';
  padding: 14px 22px;
  font-weight: 700;
  letter-spacing: 2px;
  text-align: center;
}
.info-row dd { margin: 0; padding: 14px 8px; font-weight: 600; }
.info-row dd span { font-weight: 500; }
.notice, .program-note { margin: 18px 0 0; text-align: right; font-size: 13px; color: #bd7e64; }
.speakers { background: #fff; }
.speaker-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.speaker-card {
  min-height: 225px;
  position: relative;
  display: grid;
  grid-template-columns: 105px 1fr;
  grid-template-rows: auto 1fr;
  align-items: center;
  column-gap: 22px;
  padding: 34px 30px 28px;
  background: #fff;
  border: 1px solid #f0f0f0;
  box-shadow: 0 8px 28px rgba(0,0,0,.08);
  transition: transform .2s ease, box-shadow .2s ease;
}
.speaker-card:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(0,0,0,.12); }
.speaker-photo { width: 105px; height: 105px; border-radius: 50%; object-fit: cover; background: #f5f5f5; }
.speaker-main { align-self: center; }
.role { display: inline-block; margin-bottom: 7px; padding: 4px 9px; border-radius: 4px; color: #fff; background: #a34ee0; font-size: 12px; font-weight: 800; }
.speaker-card h3 { margin: 0; font-size: 22px; line-height: 1.15; font-weight: 850; letter-spacing: -.5px; }
.speaker-card p { grid-column: 1 / -1; align-self: end; margin: 22px 0 0; font-size: 13px; color: #4e4e4e; }
.speaker-card p::before { content: "·"; margin-right: 7px; font-weight: 900; }
.program { background: #fafafa; padding-bottom: 70px; }
.program .section-title { margin-bottom: 34px; }
.program-list { border-top: 3px solid #333; }
.program-row {
  display: grid;
  grid-template-columns: 230px 1fr;
  min-height: 68px;
  border-bottom: 1px solid var(--line);
  align-items: center;
}
.time { padding: 15px 30px 15px 58px; font-weight: 800; font-size: 15px; }
.program-content { display: flex; align-items: center; padding: 13px 12px; font-size: 14px; }
.program-content.stacked { display: block; }
.program-content.stacked p { margin: 0 0 7px; }
.program-content.stacked p:last-child { margin-bottom: 0; }
.tag {
  display: inline-flex;
  min-width: 72px;
  height: 28px;
  margin-right: 15px;
  padding: 0 10px;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  background: #8f4ad4;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  vertical-align: middle;
}
.tag.gray { background: #999; }
.tag.dark { background: #66199c; }
.indent { display: inline-block; margin-left: 87px; }
.panel-indent {
  display: inline-block;
  margin-left: 90px;
}
.purple-text { color: #7918a7; }
.program-row-tall { min-height: 205px; }
.program-row-panel { min-height: 205px; }
.session-title {
  min-height: 68px;
  display: grid;
  grid-template-columns: 110px 1fr;
  color: #fff;
  background: #8e50d8;
  align-items: stretch;
}
.session-title > span { display: flex; align-items: center; justify-content: center; background: #6f26c7; font-size: 14px; font-weight: 900; }
.session-title > strong { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 7px 18px; text-align: center; font-size: 15px; line-height: 1.28; }
.session-title em { font-style: normal; font-weight: 700; }
.session-two { background: #68199c; }
.session-two > span { background: #4e0f7b; }
.program-note { color: #999; }
.site-footer {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e8e8e8;
  color: #8d8d8d;
  font-size: 12px;
}
.top-btn {
  position: fixed;
  z-index: 50;
  right: 30px;
  bottom: 30px;
  width: 50px;
  height: 50px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #5f3195;
  box-shadow: 0 5px 18px rgba(48, 16, 78, .22);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity .25s ease,
    visibility .25s ease,
    transform .25s ease,
    background .25s ease;
}
.top-btn.is-show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.top-btn:hover {
  background: #7644a9;
}


/* 화살표 */
.top-btn span {
  position: absolute;
  top: 53%;
  left: 50%;
  width: 11px;
  height: 11px;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  transform:
    translate(-50%, -50%)
    rotate(45deg);
}

@media (max-width: 1024px) {
  .gnb { gap: 22px; font-size: 14px; }
  .hero-inner { min-height: 570px; }

  .hero-copy { width: 60%; }
  .speaker-card { grid-template-columns: 85px 1fr; padding: 26px 22px 22px; }
  .speaker-photo { width: 85px; height: 85px; }
  .speaker-card h3 { font-size: 19px; }
  .program-row { grid-template-columns: 185px 1fr; }
  .time { padding-left: 35px; }
}

@media (max-width: 820px) {
  #overview,  #speakers,  #program {
    scroll-margin-top: 90px;
  }
  .wrap { width: min(calc(100% - 36px), var(--wrap)); }
  .site-header {  position: fixed; }
  .brand-etoday { height: 21px; }
  .brand-wf { height: 27px; }
  .menu-toggle {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    padding: 0 9px;
    background: rgba(255,255,255,.12);
    cursor: pointer;
  }
  .menu-toggle span:not(.sr-only) { display: block; width: 100%; height: 2px; background: #fff; transition: .2s ease; }
  .menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle.is-open span:nth-child(2) { opacity: 0; }
  .menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .gnb {
    position: absolute;
    top: 72px;
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 18px;
    border-radius: 12px;
    background: rgba(43,10,73,.98);
    box-shadow: 0 16px 30px rgba(0,0,0,.25);
  }
  .gnb.is-open { display: flex; }
  .gnb > a, .nav-dropdown-btn { display: block; width: 100%; padding: 12px 4px; text-align: left; }
  .gnb > a::after, .nav-dropdown-btn::after { display: none; }
  .nav-dropdown-menu {
    position: static;
    transform: none;
    display: none;
    opacity: 1;
    visibility: visible;
    margin: 0 0 6px 8px;
    padding: 3px 8px;
    background: rgba(255,255,255,.06);
    box-shadow: none;
  }
  .nav-dropdown.is-open .nav-dropdown-menu { display: block; transform: none; }
  .hero { padding-top: 72px; }
  .hero-inner {
    min-height: 760px;
    display: block;
    padding-top: 46px;
    padding-bottom: 360px;
  }
  .hero-inner::after {
    top: auto;
    right: 50%;
    bottom: 18px;
    width: min(82vw, 470px);
    height: 340px;
    transform: translateX(50%);
  }
  .hero-copy { width: 100%; text-align: center; }
  .hero-theme { margin-top: 24px; font-size: 22px; }
  .hero-sub { font-size: 16px; }
  .apply-btn { margin-top: 25px; }
  .hero-date { min-height: 60px; font-size: 13px; }
  .section { padding: 66px 0; }
  .overview-decoration { right: -150px; top: 170px; width: 380px; opacity: .28; }
  .intro-copy { font-size: 14px; margin-bottom: 48px; }
  .info-row { grid-template-columns: 110px 1fr; }
  .info-row dt { letter-spacing: 3px; padding-left: 12px; }
  .speaker-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .program .section-title { margin-bottom: 20px; }
  .program-row { grid-template-columns: 145px 1fr; }
  .time { padding-left: 18px; font-size: 13px; }
  .program-content { font-size: 13px; }
  .session-title { grid-template-columns: 90px 1fr; }
}

@media (max-width: 600px) {
  body { word-break: normal; }
  .wrap { width: min(calc(100% - 28px), var(--wrap)); }
  .brand-etoday { height: 19px; }
  .brand-wf { height: 24px; }
  .hero-inner {
    min-height: auto;
    padding-top: 34px;
    padding-bottom: 60px;
  }
  .hero-inner::after {
    --visual-opacity: .18;
    display: block;
    top: 0;
    right: auto;
    bottom: auto;
    left: 50%;
    width: 120%;
    height: 100%;
    transform: translateX(-50%);
    background-position: center 20px;
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0;
  }
  .hero h1, .hero-year { font-size: 36px; line-height: 1.14; letter-spacing: -2px; }
  .hero-theme { font-size: 19px; }
  .hero-sub { font-size: 15px; }
  .hero-date { font-size: 12px; line-height: 1.45; }
  .section { padding: 52px 0; }
  .section-title { margin-bottom: 30px; font-size: 20px; }
  .apply-btn{padding: 14px 23px 14px 30px; min-width: 150px; font-size: 16px;}
  .intro-copy { text-align: left; font-size: 13px; line-height: 1.7; }
  .overview {background-size: auto 50%;}
  .event-info { border-top-width: 2px; }
  .info-row { min-height: 0; padding: 13px 0; }
  .info-row dt { padding: 0; letter-spacing: 1px; font-size: 13px; }
  .info-row dd { padding: 0; font-size: 13px; line-height: 1.65; }
  .speaker-grid { grid-template-columns: 1fr; gap: 14px; }
  .speaker-card { min-height: 170px; grid-template-columns: 82px 1fr; padding: 23px 21px 20px; }
  .speaker-photo { width: 82px; height: 82px; }
  .speaker-card h3 { font-size: 19px; }
  .speaker-card p { margin-top: 16px; }
  .program-list { border-top-width: 2px; }
  .program-row, .program-row-tall, .program-row-panel {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 15px 0;
  }
  .time { padding: 0 8px 7px; color: #54207a; font-size: 13px; }
  .program-content { padding: 0 8px; align-items: flex-start; line-height: 1.55; }
  .program-content.stacked { padding-top: 0; }
  .tag { min-width: 60px; height: 25px; font-size: 11px; flex: 0 0 auto; }
  .program-content.stacked .tag { margin-bottom: 3px; }
  .indent {margin-left: 75px;}
  .panel-indent {margin-left: 76px;}
  .session-title {
    min-height: 0;
    grid-template-columns: 1fr;
    margin: 4px 0;
  }
  .session-title > span { padding: 7px 12px; }
  .session-title > strong { padding: 11px 12px; font-size: 13px; }
  .site-footer { min-height: 70px; }
  .top-btn {
    right: 16px;
    bottom: 18px;
    width: 44px;
    height: 44px;
  }
  .top-btn span {
    width: 9px;
    height: 9px;
  }
}