/* ===== 아이콘 mask-image ===== */
.icon {
  display: inline-block;
  width: 1em; height: 1em;
  background-color: currentColor;
  -webkit-mask: var(--icon) center / contain no-repeat;
          mask: var(--icon) center / contain no-repeat;
  vertical-align: -0.125em;
  flex-shrink: 0;
}
.icon-clock        { --icon: url('../icons/clock.svg'); }
.icon-location     { --icon: url('../icons/location.svg'); }
.icon-microphone   { --icon: url('../icons/microphone.svg'); }
.icon-presentation { --icon: url('../icons/presentation.svg'); }
.icon-trophy       { --icon: url('../icons/trophy.svg'); }
.icon-graduation   { --icon: url('../icons/graduation.svg'); }
.icon-award        { --icon: url('../icons/award.svg'); }
.icon-networking   { --icon: url('../icons/networking.svg'); }
.icon-handshake    { --icon: url('../icons/handshake.svg'); }
.icon-flask        { --icon: url('../icons/flask.svg'); }
.icon-book         { --icon: url('../icons/book.svg'); }
.icon-chip         { --icon: url('../icons/chip.svg'); }
.icon-hospital     { --icon: url('../icons/hospital.svg'); }
.icon-gear         { --icon: url('../icons/gear.svg'); }
.icon-clipboard    { --icon: url('../icons/clipboard.svg'); }
.icon-laptop       { --icon: url('../icons/laptop.svg'); }
.icon-calendar     { --icon: url('../icons/calendar.svg'); }
.icon-pencil       { --icon: url('../icons/pencil.svg'); }
.icon-md { width: 1.125em; height: 1.125em; }
.icon-lg { width: 28px; height: 28px; }

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--navy);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: top .2s;
}
.skip-link:focus {
  top: 16px;
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ===== 스크롤 reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .8s cubic-bezier(.22,1,.36,1), transform .8s cubic-bezier(.22,1,.36,1);
}
.reveal.visible { opacity: 1; transform: none; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ============================================================
   네비게이션 바
============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background .3s, padding .3s, box-shadow .3s;
}
.nav.scrolled {
  background: rgba(250,248,244,0.85);
  backdrop-filter: blur(16px);
  padding: 10px 0;
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--display);
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  letter-spacing: -0.5px;
  transition: color .3s;
  text-decoration: none;
}
.nav.scrolled .nav-logo { color: var(--navy); }
.nav-logo span { color: var(--orange-l); }
.nav.scrolled .nav-logo span { color: var(--orange-text); }

.nav-menu {
  display: flex;
  gap: 30px;
  align-items: center;
}
.nav-menu a {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: color .2s;
}
.nav.scrolled .nav-menu a { color: var(--text-sub); }
.nav-menu a:hover { color: var(--orange-l); }
.nav.scrolled .nav-menu a:hover { color: var(--orange-text); }

.nav-cta {
  background: var(--orange);
  color: #fff !important;
  padding: 11px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  transition: background .2s, transform .2s;
}
.nav-cta:hover { background: var(--orange-l); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  margin: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.nav.scrolled .nav-toggle-bar { background: var(--navy); }
.nav-backdrop {
  display: none;
}

@media (max-width: 820px) {
  .nav-toggle { display: flex; }

  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15,29,62,0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s;
    z-index: 98;
  }
  .nav.nav-open .nav-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(300px, 85vw);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 88px 28px 32px;
    background: rgba(250,248,244,0.98);
    backdrop-filter: blur(16px);
    box-shadow: -4px 0 24px rgba(0,0,0,0.12);
    transform: translateX(100%);
    transition: transform .35s cubic-bezier(.22,1,.36,1);
    z-index: 99;
  }
  .nav.nav-open .nav-menu { transform: translateX(0); }

  .nav-menu .nav-link {
    display: block;
    padding: 15px 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-sub) !important;
    border-bottom: 1px solid var(--border);
  }
  .nav-menu .nav-link:hover { color: var(--orange-text) !important; }
  .nav-menu .nav-cta {
    margin-top: 20px;
    text-align: center;
    display: block;
    padding: 14px 20px;
  }

  .nav.nav-open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.nav-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
  .nav.nav-open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav.nav-open .nav-toggle-bar { background: var(--navy); }
}

/* ============================================================
   ① HERO
============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy-dark) 55%, #16194a 100%);
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  --mx: -999px;
  --my: -999px;
  background:
    radial-gradient(
      circle 160px at var(--mx) var(--my),
      rgba(255,255,255,0.11) 0%,
      transparent 72%
    ),
    linear-gradient(
      105deg,
      rgba(9, 20, 40, 0.88) 0%,
      rgba(9, 20, 40, 0.52) 48%,
      rgba(9, 20, 40, 0.2) 100%
    );
  pointer-events: none;
}

.hero-sparkle {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr;
  max-width: 640px;
  width: 100%;
}

.hero-text { color: #fff; }

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  backdrop-filter: blur(10px);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  margin-bottom: 26px;
  letter-spacing: 0.3px;
}
.hero-pill .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--orange-l);
  box-shadow: 0 0 0 4px rgba(255,107,58,0.25);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 4px rgba(255,107,58,0.25); }
  50% { box-shadow: 0 0 0 8px rgba(255,107,58,0.05); }
}

.hero-title {
  font-family: var(--display);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -3px;
  margin-bottom: 24px;
}
.hero-title .l1 { display: block; font-size: 110px; color: #fff; }
.hero-title .l2 {
  display: block; font-size: 60px;
  background: linear-gradient(110deg, var(--orange) 10%, var(--orange-l) 90%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-title .l3 { display: block; font-size: 60px; color: #fff; }

.hero-sub {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.hero-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  font-style: italic;
  margin-bottom: 32px;
  letter-spacing: 0.3px;
}

.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
.btn-primary {
  background: var(--orange);
  color: #fff;
  padding: 17px 36px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 700;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background .2s, transform .2s, box-shadow .2s;
  box-shadow: var(--shadow-orange);
}
.btn-primary:hover { background: var(--orange-l); transform: translateY(-2px); box-shadow: 0 14px 36px rgba(232,80,31,0.4); }

.btn-ghost {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 17px 32px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 600;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background .2s, transform .2s;
}
.btn-ghost:hover { background: rgba(255,255,255,0.14); transform: translateY(-2px); }

/* 핵심 정보 인라인 */
.hero-meta {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.hero-meta-item { }
.hero-meta-item .label { font-size: 11px; color: rgba(255,255,255,0.5); margin-bottom: 3px; letter-spacing: 0.5px; }
.hero-meta-item .value { font-size: 15px; font-weight: 700; color: #fff; }
.hero-meta-item .value .accent { color: var(--orange-l); }

/* 스크롤 인디케이터 */
.scroll-hint {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: rgba(255,255,255,0.5);
  font-size: 11px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  letter-spacing: 1px;
}
.scroll-hint .mouse {
  width: 22px; height: 34px;
  border: 1.5px solid rgba(255,255,255,0.4);
  border-radius: 12px;
  position: relative;
}
.scroll-hint .mouse::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 3px; height: 6px;
  background: rgba(255,255,255,0.6);
  border-radius: 2px;
  animation: scrolldot 1.8s infinite;
}
@keyframes scrolldot { 0% { opacity: 0; top: 6px; } 50% { opacity: 1; } 100% { opacity: 0; top: 16px; } }

/* ============================================================
   섹션 공통
============================================================ */
section { padding: 90px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-eyebrow {
  display: inline-block;
  font-family: var(--display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--orange-text);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--display);
  font-size: 40px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -1.5px;
  line-height: 1.15;
}
.section-title.ko { font-family: var(--body); font-weight: 900; }
.section-desc {
  font-size: 15px;
  color: var(--text-sub);
  margin-top: 14px;
  max-width: 560px;
  margin-left: auto; margin-right: auto;
}

/* ============================================================
   ② 4대 가치 카드 (Practice/Research/Education/Community)
============================================================ */
.values { background: var(--ivory); }
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.value-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: transform .3s cubic-bezier(.22,1,.36,1), box-shadow .3s, border-color .3s;
}
.value-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.value-icon {
  width: 60px; height: 60px;
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
}
.value-card:nth-child(1) .value-icon { background: rgba(42,122,75,0.12); }
.value-card:nth-child(1) .value-icon .icon { color: var(--green); }
.value-card:nth-child(2) .value-icon { background: rgba(22,80,200,0.12); }
.value-card:nth-child(2) .value-icon .icon { color: var(--blue); }
.value-card:nth-child(3) .value-icon { background: rgba(232,80,31,0.12); }
.value-card:nth-child(3) .value-icon .icon { color: var(--orange-text); }
.value-card:nth-child(4) .value-icon { background: rgba(92,46,153,0.12); }
.value-card:nth-child(4) .value-icon .icon { color: var(--purple); }
.value-en {
  font-family: var(--display);
  font-size: 17px; font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}
.value-ko { font-size: 13px; color: var(--text-sub); }

/* ============================================================
   ③ 메인 행사 하이라이트 카드
============================================================ */
.highlight { background: var(--ivory-2); }
.highlight-card {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 60%, #1d2b66 100%);
  border-radius: var(--radius-lg);
  padding: 48px 52px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.highlight-card::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,80,31,0.25) 0%, transparent 70%);
  top: -150px; right: -100px;
}
.highlight-inner {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: auto 1px 1fr;
  gap: 44px;
  align-items: center;
}
.hl-date-block { }
.hl-badge {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  font-size: 11px; font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}
.hl-date {
  font-family: var(--display);
  font-size: 76px; font-weight: 800;
  line-height: 0.9; letter-spacing: -3px;
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-l) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hl-day { font-size: 20px; font-weight: 700; color: var(--orange-l); margin-top: 4px; }
.hl-type { font-size: 17px; font-weight: 700; margin-top: 6px; }

.hl-divider { width: 1px; height: 130px; background: rgba(255,255,255,0.15); }

.hl-info { }
.hl-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.hl-row .ic {
  width: 38px; height: 38px;
  border-radius: 12px;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; flex-shrink: 0;
}
.hl-row .txt .t1 { font-size: 11px; color: rgba(255,255,255,0.55); }
.hl-row .txt .t2 { font-size: 15px; font-weight: 700; }

.hl-programs {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hl-prog-chip {
  font-size: 11px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 6px 12px;
  border-radius: 100px;
  color: rgba(255,255,255,0.85);
  display: inline-flex; align-items: center; gap: 5px;
}

/* ============================================================
   ④ 프로그램 — 보수교육 + 명사특강
============================================================ */
.values { padding-bottom: 40px; }
.programs { background: var(--ivory); padding-top: 48px; }
.programs .section-eyebrow {
  font-size: 15px;
  letter-spacing: 0.5px;
  text-transform: none;
  font-family: var(--body);
}
.prog-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}
/* 2행: 워크숍·구두·캡스톤 3열 */
.prog-card.row2 {
  grid-column: auto;
}
.prog-grid .prog-row2-wrap {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 960px) {
  .prog-grid { grid-template-columns: 1fr 1fr; }
  .prog-grid .prog-row2-wrap { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .prog-grid { grid-template-columns: 1fr; }
  .prog-grid .prog-row2-wrap { grid-template-columns: 1fr; }
}
.prog-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  transition: transform .3s, box-shadow .3s;
}
.prog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.prog-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 700; color: #fff;
  padding: 5px 14px; border-radius: 100px;
  margin-bottom: 6px;
}
.prog-tag.green { background: var(--green); }
.prog-tag.purple { background: var(--purple); }
.prog-time { font-size: 13px; color: var(--text-sub); font-weight: 600; margin-left: 8px; }

.workshop-apply-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  padding: 10px 20px;
  background: var(--blue);
  color: #fff;
  font-family: var(--body);
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}
.workshop-apply-btn:hover {
  background: #0B42C8;
  transform: translateY(-2px);
}

.edu-main-title {
  font-size: 17px;
  font-weight: 900;
  color: var(--navy);
  line-height: 1.35;
  margin-top: 18px;
  margin-bottom: 4px;
}
.edu-list { margin-top: 12px; }
.edu-row {
  padding: 18px 0;
  border-bottom: 1px solid var(--ivory-3);
  display: flex; gap: 14px;
}
.edu-row:last-child { border-bottom: none; padding-bottom: 0; }
.edu-num {
  width: 28px; height: 28px;
  border-radius: 10px;
  background: rgba(42,122,75,0.12);
  color: var(--green);
  font-family: var(--display);
  font-weight: 700; font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.edu-t { font-size: 15px; font-weight: 700; color: var(--black); line-height: 1.45; margin-bottom: 4px; }
.edu-s { font-size: 13px; color: var(--text-sub); }

/* 명사특강 */
.keynote-top { display: flex; gap: 20px; margin-top: 22px; align-items: center; }
.keynote-photo {
  width: 96px; height: 112px;
  border-radius: var(--radius-sm);
  background: var(--ivory-2);
  border: 1px solid var(--border);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-size: 9px; color: var(--text-dim);
  text-align: center; gap: 5px; overflow: hidden;
  flex-shrink: 0;
}
.keynote-photo img { width: 100%; height: 100%; object-fit: cover; }
.keynote-photo .ph-ic { font-size: 28px; opacity: 0.4; }
.keynote-title {
  font-family: var(--body);
  font-size: 30px; font-weight: 900;
  color: var(--navy); line-height: 1.1;
  margin-bottom: 12px;
  letter-spacing: -1px;
}
.keynote-name { font-size: 16px; font-weight: 800; color: var(--black); margin-bottom: 5px; }
.keynote-desc { font-size: 13.5px; color: var(--text-sub); line-height: 1.75; }

/* ============================================================
   ⑤ 강의 일정 타임라인 카드
============================================================ */
.schedule { background: var(--ivory-2); }
/* 가시성 확보: 강의 일정 날짜·장소·기간 텍스트 */
.schedule .sched-period { color: #1a1a1a; background: var(--ivory-3); }
.schedule .sched-venue  { color: #1a1a1a; }
.schedule .sched-spk    { color: #1a1a1a; }
.sched-apply-btn { margin-top: 16px; margin-bottom: 4px; }
.sched-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.sched-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform .3s, box-shadow .3s;
  position: relative;
  overflow: hidden;
}
.sched-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 5px;
}
.sched-card.green::before  { background: var(--green); }
.sched-card.blue::before   { background: var(--blue); }
.sched-card.purple::before { background: var(--purple); }
.sched-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.sched-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap; gap: 8px;
}
.sched-date {
  font-family: var(--display);
  font-size: 22px; font-weight: 800;
  color: var(--navy); letter-spacing: -0.5px;
}
.sched-type-badge {
  font-size: 11px; font-weight: 700; color: #fff;
  padding: 4px 12px; border-radius: 100px;
}
.sched-card.green  .sched-type-badge { background: var(--green); }
.sched-card.blue   .sched-type-badge { background: var(--blue); }
.sched-card.purple .sched-type-badge { background: var(--purple); }
.sched-type-badge.offline-badge { background: var(--blue); }

.sched-session { margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--ivory-3); }
.sched-session:last-of-type { border-bottom: none; }
.sched-period {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  color: var(--text-sub);
  background: var(--ivory-2);
  padding: 3px 10px; border-radius: 6px;
  margin-bottom: 8px;
}
.sched-lec { font-size: 14px; font-weight: 700; color: var(--black); line-height: 1.45; margin-bottom: 6px; }
.sched-spk { font-size: 13px; color: var(--text-sub); line-height: 1.55; }
.sched-spk strong { color: var(--text); }

.sched-spk-list { margin-top: 6px; }
.sched-spk-item {
  display: flex; align-items: baseline; gap: 7px;
  font-size: 13px; color: var(--text); margin-bottom: 4px;
}
.sched-spk-item .n {
  width: 17px; height: 17px; border-radius: 50%;
  background: var(--blue); color: #fff;
  font-size: 9px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.sched-venue {
  font-size: 13px; color: var(--text-sub);
  margin-top: 16px; padding-top: 14px;
  border-top: 1px dashed var(--border);
  display: flex; align-items: center; gap: 5px;
}

/* ============================================================
   ⑥ 핵심 프로그램 + 장소 (2열)
============================================================ */
.about { background: var(--ivory); }
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
}
.core-card {
  background: linear-gradient(150deg, var(--navy) 0%, var(--navy-dark) 100%);
  border-radius: var(--radius);
  padding: 38px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.core-card::after {
  content: '';
  position: absolute;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22,80,200,0.3) 0%, transparent 70%);
  bottom: -120px; left: -80px;
}
.core-card h3 {
  font-family: var(--display);
  font-size: 22px; font-weight: 700;
  margin-bottom: 26px;
  position: relative; z-index: 2;
}
.core-eyebrow {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--orange-l);
  margin-bottom: 10px;
  position: relative; z-index: 2;
}
.core-card h3 .em { color: var(--orange-l); }
.core-items { position: relative; z-index: 2; }
.core-item {
  display: flex; gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.core-item:last-child { border-bottom: none; padding-bottom: 0; }
.core-item .ci {
  width: 44px; height: 44px;
  border-radius: 13px;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.core-item .ci .icon { width: 22px; height: 22px; color: var(--orange-l); }
.core-item .ct strong { display: block; font-size: 15px; font-weight: 700; margin-bottom: 3px; }
.core-item .ct span { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.5; }

.venue-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.venue-img {
  width: 100%; height: 200px;
  background: var(--ivory-2);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: var(--text-dim); text-align: center;
  overflow: hidden;
}
.venue-img img { width: 100%; height: 100%; object-fit: cover; }
.venue-body { padding: 26px; flex: 1; }
.venue-label {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 13px; font-weight: 700; color: var(--orange-text);
  margin-bottom: 10px;
}
.venue-name { font-size: 19px; font-weight: 800; color: var(--navy); margin-bottom: 8px; }
.venue-addr { font-size: 13px; color: var(--text-sub); line-height: 1.6; }
.venue-map-btn {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 16px;
  font-size: 13px; font-weight: 700; color: var(--navy);
  padding: 9px 18px;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: background .2s, border-color .2s;
}
.venue-map-btn:hover { background: var(--ivory-2); border-color: var(--navy); }

/* ============================================================
   ⑦ 사전등록 CTA 섹션
============================================================ */
.register { background: var(--ivory-2); }
.reg-card {
  background: linear-gradient(135deg, var(--orange) 0%, #d8431a 100%);
  border-radius: var(--radius-lg);
  padding: 56px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(232,80,31,0.3);
}
.reg-card::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.12) 1px, transparent 0);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 80% 80% at 80% 20%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 80% 20%, #000, transparent 70%);
}
.reg-inner {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
}
.reg-left { }
.reg-eyebrow {
  font-family: var(--display);
  font-size: 13px; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: rgba(255,255,255,0.8);
  margin-bottom: 14px;
}
.reg-title {
  font-family: var(--body);
  font-size: 34px; font-weight: 900;
  line-height: 1.2; margin-bottom: 16px;
  letter-spacing: -1px;
}
.reg-period {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 12px 22px;
  border-radius: 100px;
  font-size: 16px; font-weight: 700;
  margin-bottom: 26px;
}
.reg-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.reg-btn-white {
  background: #fff; color: var(--orange-text);
  padding: 16px 34px;
  border-radius: 100px;
  font-size: 16px; font-weight: 700;
  display: inline-flex; align-items: center; gap: 8px;
  transition: transform .2s, box-shadow .2s;
}
.reg-btn-white:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.2); }
.reg-btn-outline {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.6);
  color: #fff;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 16px; font-weight: 700;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background .2s;
}
.reg-btn-outline:hover { background: rgba(255,255,255,0.12); }

.reg-qr {
  background: #fff;
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
}
.reg-qr-box {
  width: 150px; height: 150px;
  background: var(--ivory-2);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: var(--text-dim); text-align: center;
  margin-bottom: 12px; overflow: hidden;
}
.reg-qr-box img { width: 100%; height: 100%; object-fit: contain; }
.reg-qr-label { font-size: 13px; font-weight: 700; color: var(--navy); }

/* ============================================================
   푸터
============================================================ */
.footer {
  background: var(--navy-deep);
  color: #fff;
  padding: 56px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .fb-logo {
  font-family: var(--display);
  font-size: 24px; font-weight: 800;
  margin-bottom: 12px;
}
.footer-brand .fb-logo span { color: var(--orange-l); }
.footer-brand p { font-size: 13px; color: rgba(255,255,255,0.55); line-height: 1.7; max-width: 320px; }
.footer-col h4 { font-size: 13px; font-weight: 700; margin-bottom: 16px; color: rgba(255,255,255,0.9); }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.55); margin-bottom: 10px; transition: color .2s; }
.footer-col a:hover { color: var(--orange-l); }

.footer-orgs {
  display: flex; flex-wrap: wrap; gap: 30px;
  padding: 30px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-org-item { display: flex; flex-direction: column; gap: 5px; align-items: flex-start; }
.footer-org-item .role { font-size: 11px; color: rgba(255,255,255,0.5); letter-spacing: 0.5px; }
.footer-org-item .name { font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.8); }
.footer-org-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.75;
}
.footer-org-logo--bg {
  filter: none;
  opacity: 0.9;
  background: rgba(255,255,255,0.12);
  border-radius: 6px;
  padding: 4px 8px;
  height: 36px;
}

.footer-bottom {
  padding-top: 24px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom .copy { font-size: 12px; color: rgba(255,255,255,0.4); }
.footer-bottom .site { font-size: 13px; }
.footer-bottom .site a { color: var(--orange-l); font-weight: 600; }

/* ============================================================
   아코디언
============================================================ */
.accordion-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 13px 0 0;
  margin-top: 16px;
  background: none;
  border: none;
  border-top: 1px solid var(--ivory-3);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-sub);
  cursor: pointer;
  text-align: left;
  transition: color .2s;
  font-family: var(--body);
}
.accordion-toggle:hover { color: var(--navy); }
.accordion-toggle .acc-arr {
  font-size: 11px;
  transition: transform .35s cubic-bezier(.22,1,.36,1);
  flex-shrink: 0;
}
.accordion-toggle[aria-expanded="true"] .acc-arr { transform: rotate(180deg); }

.accordion-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height .45s cubic-bezier(.22,1,.36,1);
}
.accordion-body.open { max-height: 1200px; }

/* 타임테이블 */
.timetable-wrap { margin-top: 40px; }
.timetable-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 16px 24px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--body);
  transition: background .2s;
}
.timetable-toggle:hover { background: rgba(255,255,255,0.13); }
.timetable-toggle .acc-arr {
  margin-left: auto;
  font-size: 11px;
  transition: transform .35s cubic-bezier(.22,1,.36,1);
}
.timetable-toggle[aria-expanded="true"] .acc-arr { transform: rotate(180deg); }

.timetable-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height .5s cubic-bezier(.22,1,.36,1);
}
.timetable-body.open { max-height: 2000px; }

.tt-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  font-size: 15px;
}
.tt-table th {
  padding: 9px 14px;
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.5px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.tt-table td {
  padding: 11px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.85);
  vertical-align: top;
  line-height: 1.55;
}
.tt-table tr:last-child td { border-bottom: none; }
.tt-time {
  font-family: var(--display);
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  font-size: 15px;
}
.tt-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 11px;
  border-radius: 100px;
  margin-bottom: 4px;
}
.tt-tag.main { background: var(--blue-l); color: #fff; }
.tt-tag.sub  { background: var(--blue-l); color: #fff; }
.tt-tag.break{ background: rgba(255,255,255,0.16); color: rgba(255,255,255,0.9); }
.tt-parallel { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 3px; }

/* 동시진행 3열 레이아웃 */
.tt-concurrent {
  display: flex;
  flex-direction: column;
  width: 100%;
}
.tt-concurrent-row {
  display: grid;
  width: 100%;
}
.tt-concurrent-row.row-3col {
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.tt-concurrent-row.row-4col {
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.tt-concurrent-row.row-1col {
  grid-template-columns: 1fr;
  background: rgba(255,255,255,0.03);
}
.tt-concurrent-col {
  padding: 10px 14px;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.tt-concurrent-col:last-child { border-right: none; }
.tt-concurrent-title {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,0.92);
  margin-top: 6px;
  line-height: 1.5;
}
.tt-concurrent-sub {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-top: 3px;
}
.tt-concurrent-venue {
  font-size: 12px;
  color: rgba(255,255,255,0.62);
  margin-top: 8px;
  font-weight: 500;
}
@media (max-width: 560px) {
  /* 카드형 세로 스택은 데스크톱 표보다 훨씬 길어 max-height 상향 (2000px에서 잘림 방지) */
  .timetable-body.open { max-height: 5000px; }
  /* 표를 카드형(세로 스택)으로 전환 — 고정폭 3열 붕괴 방지 */
  .tt-table, .tt-table tbody { display: block; }
  .tt-table thead { display: none; }
  .tt-table tr {
    display: block;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: 14px;
    padding: 14px 16px;
    margin-bottom: 12px;
  }
  .tt-table tr:last-child td { border-bottom: none; }
  .tt-table td {
    display: block;
    border: none !important;
    padding: 0;
  }
  .tt-time { font-size: 17px; margin-bottom: 10px; white-space: normal; }
  /* 프로그램 셀이 동시진행 그리드가 아닐 때 여백 */
  .tt-table td:not(:first-child):not(.tt-loc) { line-height: 1.6; }
  /* 장소 셀 라벨 표기 */
  .tt-loc {
    margin-top: 12px;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
  }
  .tt-loc::before {
    content: "장소 · ";
    color: rgba(255,255,255,0.4);
    font-weight: 600;
  }
  /* 동시진행 컬럼 1열 세로 배치 */
  .tt-concurrent-row.row-3col,
  .tt-concurrent-row.row-4col { grid-template-columns: 1fr; }
  .tt-concurrent-col {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 12px 0;
  }
  .tt-concurrent-col:last-child { border-bottom: none; }
}

/* 강의 세부 아코디언 내부 */
.acc-detail { padding: 16px 0 4px; }
.acc-session {
  padding: 14px 0;
  border-bottom: 1px solid var(--ivory-3);
}
.acc-session:last-child { border-bottom: none; padding-bottom: 0; }
.acc-session-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 6px;
  line-height: 1.5;
}
.acc-session-sub {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.65;
}
.acc-session-sub li {
  margin-left: 14px;
  margin-bottom: 2px;
}
.acc-speaker-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
}
.acc-speaker-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--text);
}
.acc-speaker-item .n {
  width: 17px; height: 17px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 9px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.sched-card.blue  .acc-speaker-item .n { background: var(--blue); }
.sched-card.purple .acc-speaker-item .n { background: var(--purple); }
.acc-period-badge {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  color: var(--text-sub);
  background: var(--ivory-2);
  padding: 3px 10px; border-radius: 6px;
  margin-bottom: 10px;
}
.acc-period-head {
  font-size: 12px; font-weight: 700;
  color: var(--orange-text);
  border-left: 3px solid var(--orange-text);
  padding-left: 8px;
  margin: 14px 0 8px;
}
.acc-instructor {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}
.acc-spk {
  font-size: 13px;
  color: var(--text-sub);
  margin-left: 6px;
  font-weight: 600;
}

/* ============================================================
   반응형
============================================================ */
@media (max-width: 960px) {
  .hero-content { max-width: 100%; }
  .hero-overlay {
    background: linear-gradient(
      180deg,
      rgba(9, 20, 40, 0.9) 0%,
      rgba(9, 20, 40, 0.65) 100%
    );
  }
  .hero-title .l1 { font-size: 84px; }
  .hero-title .l2, .hero-title .l3 { font-size: 46px; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .highlight-inner { grid-template-columns: 1fr; gap: 28px; }
  .hl-divider { display: none; }
  .prog-grid { grid-template-columns: 1fr; }
  .sched-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .reg-inner { grid-template-columns: 1fr; }
  .reg-qr { justify-self: center; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 560px) {
  section { padding: 64px 0; }
  .container { padding: 0 20px; }
  .hero-title .l1 { font-size: 64px; }
  .hero-title .l2, .hero-title .l3 { font-size: 38px; }
  .section-title { font-size: 30px; }
  .values-grid { grid-template-columns: 1fr; }
  .highlight-card, .reg-card { padding: 32px 24px; }
  .hl-date { font-size: 60px; }
  .keynote-top { flex-direction: column; align-items: flex-start; }
  .reg-title { font-size: 26px; }
}

/* 타임테이블 신청 링크 */
.tt-apply-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange-l);
  text-decoration: none;
  opacity: 0.95;
  transition: opacity 0.2s;
}
.tt-apply-link:hover { opacity: 1; text-decoration: underline; }

/* ===== 플로팅 CTA 바 ===== */
.floating-cta {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 900;
  display: flex;
  gap: 0;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.35);
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
}
.floating-cta.visible { transform: translateY(0); }
.floating-cta a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: filter 0.2s;
}
.floating-cta a:hover { filter: brightness(1.1); }
.floating-cta .fcta-apply {
  background: var(--orange);
  color: #fff;
}
.floating-cta .fcta-schedule {
  background: var(--blue);
  color: #fff;
}
@media (max-width: 400px) {
  .floating-cta a { font-size: 13px; padding: 13px 10px; }
}