/* =========================================================
   AsiaSTA QA Conference 2026 — Stylesheet v2
   Direction: Light, airy, modern tech — human-crafted feel
   ========================================================= */

/* ── Reset & Variables ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Core palette */
  --white:          #ffffff;
  --off-white:      #F8FAFD;
  --light-gray:     #F1F5F9;
  --border:         #E2E8F0;
  --border-dark:    #CBD5E1;

  /* Brand blues — pulled from logo */
  --navy:           #0A2463;
  --navy-mid:       #1E3A8A;
  --blue:           #2563EB;
  --blue-bright:    #3B82F6;
  --blue-light:     #DBEAFE;
  --blue-xlight:    #EFF6FF;

  /* Accents */
  --sky:            #0EA5E9;
  --teal:           #0D9488;
  --teal-light:     #CCFBF1;
  --orange:         #F97316;
  --orange-light:   #FFF7ED;
  --orange-dark:    #EA580C;
  --gold:           #D97706;
  --gold-light:     #FEF3C7;

  /* Text */
  --text-dark:      #0F172A;
  --text-body:      #475569;
  --text-muted:     #94A3B8;
  --text-navy:      #1E3A5F;

  /* UI */
  --card-bg:        #ffffff;
  --card-shadow:    0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(10,36,99,0.07);
  --card-shadow-hover: 0 8px 32px rgba(10,36,99,0.14);
  --radius-sm:      6px;
  --radius-md:      12px;
  --radius-lg:      20px;
  --radius-xl:      28px;
  --transition:     0.22s ease;
  --font-body:      'Inter', 'Noto Sans KR', 'Noto Sans JP', 'Noto Sans SC', sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--white);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4 { color: var(--text-dark); font-weight: 700; line-height: 1.25; }
a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--navy); }

/* ── Layout Utilities ────────────────────────────────────── */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 6rem 0; }
.section--tinted { background: var(--off-white); }
.section--navy {
  background: var(--navy);
  color: var(--white);
}
.section--navy h2, .section--navy h3, .section--navy h4 { color: var(--white); }

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--blue);
  background: var(--blue-xlight);
  border-radius: 4px;
  padding: 0.3rem 0.8rem;
  margin-bottom: 1rem;
}
.section--navy .section__label {
  color: var(--blue-bright);
  background: rgba(59,130,246,0.15);
}

.section__title {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  color: var(--text-dark);
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}
.section--navy .section__title { color: var(--white); }

.section__subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 3rem;
  max-width: 580px;
}
.section__subtitle.centered { margin-left: auto; margin-right: auto; text-align: center; }
.section--navy .section__subtitle { color: rgba(255,255,255,0.65); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-align: center;
  line-height: 1.4;
}

.btn--primary {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}
.btn--primary:hover {
  background: var(--orange-dark);
  border-color: var(--orange-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(249,115,22,0.35);
}

.btn--navy {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}
.btn--navy:hover {
  background: var(--navy-mid);
  border-color: var(--navy-mid);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(10,36,99,0.25);
}

.btn--outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--border-dark);
}
.btn--outline:hover {
  border-color: var(--navy);
  color: var(--navy);
  background: var(--blue-xlight);
}

.btn--outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.45);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
  color: var(--white);
}

.btn--large { padding: 1rem 2.25rem; font-size: 1.05rem; }
.btn--full-width { width: 100%; justify-content: center; }

/* ── Top Navigation ──────────────────────────────────────── */
.topnav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.topnav.scrolled { box-shadow: 0 2px 16px rgba(0,0,0,0.08); }

.topnav__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.topnav__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.topnav__logo img {
  height: 52px;
  width: auto;
  display: block;
}

.topnav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
  margin-left: 0.5rem;
}
.topnav__links a {
  color: var(--text-body);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: all var(--transition);
  white-space: nowrap;
}
.topnav__links a:hover {
  color: var(--navy);
  background: var(--blue-xlight);
}

.topnav__right {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  background: var(--light-gray);
  border-radius: 8px;
  padding: 0.2rem;
}
.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}
.lang-btn:hover { color: var(--navy); background: var(--white); }
.lang-btn.active { background: var(--white); color: var(--navy); box-shadow: 0 1px 3px rgba(0,0,0,0.1); }

/* ── Mobile Language Select (hidden on desktop) ──────────── */
.lang-select-wrap {
  display: none;
  align-items: center;
}
.lang-select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--light-gray)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%230A2463' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    no-repeat right 0.5rem center;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.35rem 1.75rem 0.35rem 0.65rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--navy);
  cursor: pointer;
  font-family: var(--font-body);
  line-height: 1;
}
.lang-select:focus { outline: 2px solid var(--blue); outline-offset: 2px; }

/* Mobile nav toggle */
.topnav__hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 4px;
  border: none;
  background: transparent;
}
.topnav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding: 6rem 0 5rem;
}

/* Subtle dot grid */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* Gradient blobs — subtle, not overwhelming */
.hero::after {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(37,99,235,0.4) 0%, transparent 65%);
  pointer-events: none;
  border-radius: 50%;
}

.hero__blob2 {
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 400px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(14,165,233,0.2) 0%, transparent 65%);
  pointer-events: none;
  border-radius: 50%;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 4rem;
  align-items: center;
}

.hero__left { }

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: 1.5rem;
}
.hero__eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--sky);
  border-radius: 2px;
}

.hero__logo-img {
  height: 52px;
  width: auto;
  display: block;
  margin-bottom: 1.75rem;
  filter: brightness(0) invert(1);
}

.hero__title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  color: var(--white);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.hero__title em {
  color: var(--sky);
  font-style: normal;
}

.hero__tagline {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 2.25rem;
  font-style: italic;
}

.hero__meta {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}
.hero__meta-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.925rem;
  color: rgba(255,255,255,0.8);
}
.hero__meta-icon {
  font-size: 1rem;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}

.hero__cta-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

/* Right side — info card */
.hero__card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  padding: 2rem;
  backdrop-filter: blur(8px);
}
.hero__card-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--sky);
  margin-bottom: 1.25rem;
}
.hero__card-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  gap: 1rem;
}
.hero__card-row:last-child { border-bottom: none; padding-bottom: 0; }
.hero__card-row:first-of-type { padding-top: 0; }
.hero__card-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  font-weight: 500;
}
.hero__card-value {
  font-size: 0.9rem;
  color: var(--white);
  font-weight: 600;
  text-align: right;
}
.hero__card-value small {
  display: block;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  font-weight: 400;
}

.hero__tickets-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--sky);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}
.hero__ticket-row {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}
.hero__ticket-row:last-child { margin-bottom: 0; }
.hero__ticket-name { color: rgba(255,255,255,0.8); }
.hero__ticket-price { color: var(--white); font-weight: 700; }
.hero__ticket-price span { color: rgba(255,255,255,0.45); font-size: 0.75rem; font-weight: 400; }
.hero__highlights-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.hero__highlights-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.85);
}
.hero__highlights-list li::before {
  content: "✓";
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  background: rgba(249,115,22,0.25);
  color: #FB923C;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 800;
}

/* ── Highlights bar ──────────────────────────────────────── */
.highlights-bar {
  background: var(--blue-xlight);
  border-bottom: 1px solid var(--blue-light);
  padding: 1.5rem 0;
}
.highlights-bar__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 2rem;
}
.hl-bar-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.hl-bar-item__icon { font-size: 1.25rem; flex-shrink: 0; }
.hl-bar-item__text { font-size: 0.875rem; font-weight: 600; color: var(--navy); }

/* ── Overview ────────────────────────────────────────────── */
.overview__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 3rem;
  align-items: start;
}

.overview__about h3 {
  font-size: 1.35rem;
  color: var(--text-dark);
  margin-bottom: 0.75rem;
}
.overview__about p {
  color: var(--text-body);
  margin-bottom: 1.25rem;
  line-height: 1.75;
}
.overview__about em {
  color: var(--blue);
  font-style: normal;
  font-weight: 600;
}

.check-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.5rem;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.925rem;
  color: var(--text-body);
}
.check-list li::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  background: var(--blue-xlight);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath d='M1.5 5l2.5 2.5 4.5-4.5' stroke='%232563EB' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  margin-top: 3px;
}

/* Fee card */
.fee-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}
.fee-card__header {
  background: var(--navy);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.fee-card__header-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.7);
}
.fee-card__header-note {
  font-size: 0.75rem;
  color: var(--sky);
  font-weight: 600;
}
.fee-card__body { padding: 1.25rem 1.5rem; }
.fee-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.5rem 1.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.fee-row:last-child { border-bottom: none; padding-bottom: 0; }
.fee-row:first-child { padding-top: 0; }
.fee-row__type { font-size: 0.9rem; color: var(--text-body); font-weight: 500; }
.fee-row__early { font-size: 0.95rem; font-weight: 700; color: var(--blue); }
.fee-row__standard { font-size: 0.95rem; font-weight: 700; color: var(--text-dark); }
.fee-row__header { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); }
.fee-card__cta {
  padding: 1.25rem 1.5rem;
  background: var(--off-white);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.fee-card__deadline {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}
.fee-card__deadline strong { color: var(--orange); }

/* ── Program ─────────────────────────────────────────────── */
.program { background: var(--off-white); }

.program__timeline {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}

.program__item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1.25rem;
  align-items: start;
}
.program__item--break .program__body,
.program__item--registration .program__body {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  opacity: 0.6;
}
.program__item--break .program__body:hover,
.program__item--registration .program__body:hover {
  background: transparent;
  transform: none;
  box-shadow: none;
}

.program__time {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--blue);
  padding-top: 0.9rem;
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.program__item--break .program__time,
.program__item--registration .program__time {
  color: var(--text-muted);
  font-weight: 500;
}

.program__body {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  transition: all var(--transition);
  box-shadow: var(--card-shadow);
}
.program__body:hover {
  border-color: var(--blue-bright);
  box-shadow: var(--card-shadow-hover);
  transform: translateX(3px);
}

.program__tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  margin-bottom: 0.35rem;
  background: var(--blue-xlight);
  color: var(--blue);
}
.program__tag--keynote { background: var(--orange-light); color: var(--orange-dark); }
.program__tag--networking { background: var(--teal-light); color: var(--teal); }
.program__tag--break { background: var(--light-gray); color: var(--text-muted); }

.program__name { font-size: 0.975rem; font-weight: 600; color: var(--text-dark); margin-bottom: 0.15rem; }
.program__speaker { font-size: 0.84rem; color: var(--text-muted); }
.program__note {
  margin-top: 1.75rem;
  font-size: 0.84rem;
  color: var(--text-muted);
  font-style: italic;
  padding-left: 110px;
  padding-left: calc(110px + 1.25rem);
}

/* ── Speakers ────────────────────────────────────────────── */
.speakers { }
.speakers__placeholder {
  border: 2px dashed var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text-muted);
  background: var(--off-white);
}
.speakers__placeholder-icon { font-size: 3.5rem; margin-bottom: 1rem; opacity: 0.5; }
.speakers__placeholder p { max-width: 460px; margin: 0 auto; font-size: 0.95rem; }

.speakers__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}
.speaker-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition);
  box-shadow: var(--card-shadow);
}
.speaker-card:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--blue-bright);
  transform: translateY(-3px);
}
.speaker-card__avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 3px solid var(--blue-light);
  object-fit: cover;
  margin: 0 auto 1rem;
  display: block;
}
.speaker-card__name { font-size: 0.975rem; font-weight: 700; color: var(--text-dark); margin-bottom: 0.2rem; }
.speaker-card__title { font-size: 0.82rem; color: var(--text-muted); }

/* ── Conference Highlights ───────────────────────────────── */
.conf-highlights { }
.conf-highlights__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.conf-highlight-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  transition: all var(--transition);
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
}
.conf-highlight-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--sky));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.conf-highlight-card:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--blue-light);
  transform: translateY(-4px);
}
.conf-highlight-card:hover::after { transform: scaleX(1); }
.conf-highlight-card__icon { font-size: 2rem; margin-bottom: 1rem; }
.conf-highlight-card h3 { font-size: 1rem; color: var(--text-dark); margin-bottom: 0.6rem; font-weight: 700; }
.conf-highlight-card p { font-size: 0.875rem; color: var(--text-body); line-height: 1.65; }

/* ── Audience ────────────────────────────────────────────── */
.audience { background: var(--navy); }
.audience .section__label { color: var(--blue-bright); }
.audience .section__title { color: var(--white); }
.audience .section__subtitle { color: rgba(255,255,255,0.65); }
.audience__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}
.audience-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  text-align: center;
  transition: all var(--transition);
}
.audience-card:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
}
.audience-card__icon { font-size: 1.75rem; margin-bottom: 0.6rem; }
.audience-card h4 { font-size: 0.875rem; color: var(--white); margin-bottom: 0.4rem; font-weight: 700; line-height: 1.3; }
.audience-card p { font-size: 0.8rem; color: rgba(255,255,255,0.55); line-height: 1.55; }

/* ── Venue ───────────────────────────────────────────────── */
.venue { }
.venue__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3.5rem;
  align-items: start;
}
.venue__info h3 { font-size: 1.3rem; color: var(--text-dark); margin-bottom: 0.5rem; }
.venue__address {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}
.venue__transport { display: flex; flex-direction: column; gap: 1.25rem; }
.venue__transport-item {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}
.venue__transport-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 1px; }
.venue__transport-item strong { font-size: 0.875rem; color: var(--text-dark); display: block; margin-bottom: 0.2rem; }
.venue__transport-item p { font-size: 0.84rem; color: var(--text-body); line-height: 1.6; }
.venue__map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  height: 340px;
  box-shadow: var(--card-shadow);
}
.venue__map iframe { width: 100%; height: 100%; border: none; }

/* ── Organizers ──────────────────────────────────────────── */
.organizers { background: var(--off-white); }
.organizers__roles {
  display: flex;
  gap: 3rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.organizer-role__label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--blue);
  font-weight: 700;
  display: block;
  margin-bottom: 0.3rem;
}
.organizer-role p { font-size: 0.925rem; color: var(--text-body); }
.organizers__logo-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}
.org-logo-placeholder {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 2rem;
  font-weight: 700;
  color: var(--navy);
  font-size: 0.9rem;
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 120px;
  min-height: 70px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.org-logo-placeholder:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}

/* ── Sponsors preview ────────────────────────────────────── */
.sponsors-preview__tiers { display: flex; flex-direction: column; gap: 2rem; margin-bottom: 2rem; }
.sponsor-tier__label {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
}
.sponsor-tier--platinum .sponsor-tier__label { color: #92400E; }
.sponsor-tier--gold .sponsor-tier__label { color: var(--gold); }
.sponsor-tier--silver .sponsor-tier__label { color: #4B5563; }
.sponsor-tier__slots { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.sponsor-slot {
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-muted);
  border: 2px dashed var(--border-dark);
  background: var(--off-white);
  transition: all var(--transition);
}
.sponsor-slot:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-xlight); }
.sponsor-tier--platinum .sponsor-slot { min-width: 300px; min-height: 100px; }
.sponsor-tier--gold .sponsor-slot { min-width: 220px; min-height: 80px; }
.sponsor-tier--silver .sponsor-slot { min-width: 160px; min-height: 65px; }
.sponsors-preview__cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── Lucky draw ──────────────────────────────────────────── */
.lucky-draw { background: var(--off-white); }
.lucky-draw__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}
.prize-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  text-align: center;
  width: 185px;
  transition: all var(--transition);
  box-shadow: var(--card-shadow);
  position: relative;
}
.prize-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--blue-light);
}
.prize-card--grand {
  border-color: #FDE68A;
  background: var(--gold-light);
  width: 220px;
}
.prize-card--grand::before {
  content: 'Grand Prize';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--white);
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.75rem;
  border-radius: 20px;
  white-space: nowrap;
}
.prize-card__rank { font-size: 1.25rem; margin-bottom: 0.4rem; }
.prize-card__image-placeholder {
  width: 100%;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--off-white);
}
.prize-card--grand .prize-card__image-placeholder { height: 140px; background: #FFFBEB; }
.prize-card__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  padding: 0.5rem;
  transition: transform 0.3s ease;
}
.prize-card:hover .prize-card__img { transform: scale(1.06); }
.prize-card__name { font-size: 0.845rem; font-weight: 600; color: var(--text-dark); margin-bottom: 0.35rem; line-height: 1.4; }
.prize-card__qty { font-size: 1.1rem; font-weight: 800; color: var(--blue); }
.lucky-draw__note { margin-top: 2rem; text-align: center; font-size: 0.82rem; color: var(--text-muted); font-style: italic; }

/* ── Contact / CTA band ──────────────────────────────────── */
.contact-band {
  background: linear-gradient(135deg, var(--blue) 0%, var(--navy) 100%);
  padding: 5rem 0;
  text-align: center;
}
.contact-band h2 { color: var(--white); font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 0.75rem; letter-spacing: -0.02em; }
.contact-band p { color: rgba(255,255,255,0.7); max-width: 500px; margin: 0 auto 2rem; }
.contact-band .btn-group { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--text-dark);
  padding: 3.5rem 0 2rem;
}
.footer__inner {
  display: grid;
  grid-template-columns: 220px 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}
.footer__logo { margin-bottom: 0.75rem; }
.footer__logo img { height: 34px; width: auto; filter: brightness(0) invert(1); opacity: 0.85; }
.footer__tagline { font-size: 0.82rem; color: rgba(255,255,255,0.35); font-style: italic; line-height: 1.6; }
.footer__col-title { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: rgba(255,255,255,0.4); margin-bottom: 0.9rem; }
.footer__nav { display: flex; flex-direction: column; gap: 0.5rem; }
.footer__nav a { color: rgba(255,255,255,0.6); font-size: 0.875rem; transition: color var(--transition); }
.footer__nav a:hover { color: var(--white); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer__bottom a { color: rgba(255,255,255,0.4); }
.footer__bottom a:hover { color: var(--white); }

/* ── Fade-in animation ───────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── Language overrides ──────────────────────────────────── */
:lang(ko) { font-family: 'Noto Sans KR', 'Inter', sans-serif; word-break: keep-all; }
:lang(ja) { font-family: 'Noto Sans JP', 'Inter', sans-serif; }
:lang(zh) { font-family: 'Noto Sans SC', 'Inter', sans-serif; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__card { max-width: 480px; }
  .highlights-bar__inner { grid-template-columns: repeat(2, 1fr); }
  .conf-highlights__grid { grid-template-columns: repeat(2, 1fr); }
  .audience__grid { grid-template-columns: repeat(3, 1fr); }
  .overview__grid { grid-template-columns: 1fr; }
  .venue__grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__inner > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .section { padding: 4rem 0; }
  .hero { padding: 4.5rem 0 3.5rem; }
  .hero__title { font-size: 1.75rem; }
  .topnav__links { display: none; }
  .topnav__hamburger { display: flex; }
  /* Swap pill buttons → compact select on mobile */
  .lang-switcher { display: none; }
  .lang-select-wrap { display: flex; }
  /* Hide Register Now from nav bar on mobile (hero has a big CTA already) */
  .topnav__right .btn--primary { display: none; }
  .topnav__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    gap: 0.25rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .conf-highlights__grid { grid-template-columns: 1fr 1fr; }
  .audience__grid { grid-template-columns: repeat(2, 1fr); }
  .program__item { grid-template-columns: 80px 1fr; gap: 0.75rem; }
  .program__note { padding-left: calc(80px + 0.75rem); }
  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer__inner > div:first-child { grid-column: auto; }
  .footer__bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 540px) {
  .container { padding: 0 1.25rem; }
  .highlights-bar__inner { grid-template-columns: 1fr 1fr; }
  .conf-highlights__grid { grid-template-columns: 1fr; }
  .audience__grid { grid-template-columns: 1fr 1fr; }
  .program__item { grid-template-columns: 1fr; }
  .program__time { text-align: left; padding-top: 0; padding-bottom: 0.2rem; }
  .program__body { margin-left: 0; }
  .program__note { padding-left: 0; }
  .prize-card { width: 100%; max-width: 260px; }
  .hero__cta-group { flex-direction: column; align-items: flex-start; }
  .organizers__roles { flex-direction: column; gap: 1.25rem; }
}