*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body.menu-open { overflow: hidden; }

:root {
  --bg-page: #01101e;
  --bg-card: #0a1929;
  --bg-card-hover: #0f2137;
  --bg-accent: #0073ff;
  --bg-accent-fade: #0073ff1a;
  --bg-accent-medium: #0073ff33;
  --bg-overlay: #01101e80;
  --bg-positive: #33cc59;
  --bg-positive-fade: #33cc5933;
  --bg-notice: #f2c40d;
  --bg-notice-fade: #f2c40d33;
  --bg-negative: #fa5c5c;
  --fg-strong: #ffffff;
  --fg-base: rgba(255,255,255,0.75);
  --fg-weak: rgba(255,255,255,0.4);
  --fg-accent: #0073ff;
  --border-base: rgba(0,115,255,0.12);
  --border-dashed: rgba(0,115,255,0.15);
  --border-hover: rgba(0,115,255,0.3);
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-page);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Crect x='7' y='7' width='2' height='2' rx='1' fill='white' fill-opacity='0.1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 16px 16px;
  color: var(--fg-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: #01101e;
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  height: 56px;
  padding: 0 24px;
}
.nav-logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.nav-logo-img {
  width: 134px;
  height: 32px;
}
.nav-center {
  flex: 1 1 0;
  display: flex;
  justify-content: center;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--fg-strong);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.6px;
  padding: 8px;
  border-radius: 6px;
  transition: color 0.15s var(--ease);
}
.nav-links a:hover { color: var(--fg-accent); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-shrink: 0;
}
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  padding: 2px;
}
.lang-btn {
  background: none;
  border: none;
  color: var(--fg-weak);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.6px;
  padding: 4px 6px;
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
}
.lang-btn:hover { color: var(--fg-base); }
.lang-btn.active {
  background: rgba(255,255,255,0.1);
  color: var(--fg-strong);
}
.nav-cta {
  display: inline-flex;
  align-items: stretch;
  text-decoration: none;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.04em;
  cursor: pointer;
  border-radius: 12px 0 0 12px;
  overflow: visible;
}
.nav-cta-label {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-accent);
  height: 36px;
  padding: 0 4px 0 16px;
  border-radius: 12px 0 0 12px;
  transition: background 0.15s var(--ease);
}
.nav-cta-notch {
  display: block;
  color: var(--bg-accent);
  margin-left: -1px;
  flex-shrink: 0;
  transition: color 0.15s var(--ease);
}
.nav-cta:hover .nav-cta-label { background: #005ecc; }
.nav-cta:hover .nav-cta-notch { color: #005ecc; }
.lang-switcher-mobile {
  display: none;
}
.nav-burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 4px;
  color: var(--fg-strong);
  background: rgba(255,255,255,0.06);
}
.nav-burger svg { display: block; }

/* ── REGISTRATION BANNER ── */
.reg-banner {
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  z-index: 99;
  background: var(--bg-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 0;
  text-align: center;
}
.reg-banner-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.reg-banner-dot {
  display: inline-block;
  vertical-align: middle;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.reg-banner-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,0.4);
  transition: border-color 0.15s var(--ease);
}
.reg-banner-link:hover { border-bottom-color: #fff; }

/* ── HERO ── */
.hero {
  position: relative;
  padding: 110px 0 0;
  overflow: hidden;
}
.hero .section-frame {
  padding-top: 74px;
  padding-bottom: 100px;
}
.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(50% 50% at 50% 50%, rgba(0,115,255,0.1) 0%, rgba(0,115,255,0) 100%);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,115,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,115,255,0.06) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}
.hero-container { position: relative; z-index: 1; text-align: center; }

.hero-partners {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.hero-partner-logo {
  height: 28px;
  opacity: 0.85;
  transition: opacity 0.15s var(--ease);
}
.hero-partner-logo:hover { opacity: 1; }

.hero h1 {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  color: var(--fg-strong);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.hero h1 em {
  font-style: normal;
  color: var(--fg-accent);
}
.hero-sub {
  font-size: 20px;
  font-weight: 500;
  color: var(--fg-base);
  margin-bottom: 12px;
}
.hero-desc {
  font-size: 17px;
  color: var(--fg-base);
  max-width: 600px;
  margin-inline: auto;
  line-height: 1.6;
  margin-bottom: 40px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 24px;
  position: relative;
}
.hero-stat + .hero-stat {
  border-left: 1px solid var(--border);
}
.hero-stat-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(0, 115, 255, 0.08);
  margin-bottom: 20px;
}
.hero-stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--fg-strong);
  line-height: 1.2;
}
.hero-stat-label {
  font-size: 13px;
  color: var(--fg-weak);
  margin-top: 6px;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.hero-visa-note {
  margin-top: 32px;
  font-size: 14px;
  color: var(--fg-weak);
  text-align: center;
  letter-spacing: -0.01em;
}
.mobile-br { display: none; }

/* ── BUTTONS ── */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: stretch;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.04em;
  cursor: pointer;
  border: none;
  font-family: var(--font);
  border-radius: 12px 0 0 12px;
  overflow: visible;
}
.btn-label {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 6px 0 24px;
  border-radius: 12px 0 0 12px;
  transition: background 0.15s var(--ease);
}
.btn-notch {
  display: block;
  flex-shrink: 0;
  transition: color 0.15s var(--ease);
}

/* Primary variant */
.btn-primary { color: #fff; }
.btn-primary .btn-label { background: var(--bg-accent); }
.btn-primary .btn-notch { color: var(--bg-accent); }
.btn-primary:hover .btn-label { background: #005ecc; }
.btn-primary:hover .btn-notch { color: #005ecc; }

/* Secondary variant */
.btn-secondary { color: var(--fg-strong); }
.btn-secondary .btn-label {
  background: rgba(255,255,255,0.06);
  border-right: none;
}
.btn-secondary .btn-notch { color: rgba(255,255,255,0.06); }
.btn-secondary:hover .btn-label {
  background: rgba(255,255,255,0.1);
  border-color: var(--border-hover);
}
.btn-secondary:hover .btn-notch { color: rgba(255,255,255,0.1); }

/* ── SECTIONS COMMON ── */
section { padding: 0; }
@media (min-width: 1280px) {
  section { padding: 0; }
}

/* Section frame — solid border with SVG corner marks */
.section-frame {
  position: relative;
  border: 1px solid rgba(255,255,255,0.05);
  padding: 48px 40px;
}
.section-frame-corner {
  position: absolute;
  width: 8px;
  height: 8px;
  pointer-events: none;
}
.section-frame-corner--tl { top: -1px; left: -1px; }
.section-frame-corner--tr { top: -1px; right: -1px; transform: rotate(90deg); }
.section-frame-corner--br { bottom: -1px; right: -1px; transform: rotate(180deg); }
.section-frame-corner--bl { bottom: -1px; left: -1px; transform: rotate(270deg); }

/* Diagonal hatching divider between sections */
.section-divider {
  height: 80px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-divider::after {
  content: '';
  display: block;
  height: 100%;
  border: 1px solid rgba(255,255,255,0.05);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8' fill='none'%3E%3Cg clip-path='url(%2523clip0_151_4459)'%3E%3Cline x1='-4.85355' y1='9.14645' x2='9.14645' y2='-4.85355' stroke='white' stroke-opacity='0.15'/%3E%3Cline x1='-0.853553' y1='13.1464' x2='13.1464' y2='-0.853553' stroke='white' stroke-opacity='0.15'/%3E%3C/g%3E%3Cdefs%3E%3CclipPath id='clip0_151_4459'%3E%3Crect width='8' height='8' fill='white'/%3E%3C/clipPath%3E%3C/defs%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 8px 8px;
}

.section-dashed {
  border-top: none;
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-accent);
  margin-bottom: 12px;
  text-align: center;
}
.section-title {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 700;
  color: var(--fg-strong);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  text-align: center;
}
.section-desc {
  font-size: 16px;
  color: var(--fg-base);
  max-width: 900px;
  line-height: 1.6;
  margin-bottom: 48px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ── PRIZES ── */
.prizes-row {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 16px;
  max-width: 700px;
  margin: 0 auto 20px;
}
.prize-card {
  flex: 1;
  max-width: 200px;
  padding: 32px 24px;
  text-align: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-base);
  background: var(--bg-card);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.prize-card:hover { transform: translateY(-3px); }
.prize-card.gold {
  border-color: rgba(255,215,0,0.3);
  background: linear-gradient(180deg, rgba(255,215,0,0.06) 0%, var(--bg-card) 100%);
  padding: 40px 24px;
  margin-bottom: 32px;
}
.prize-card.silver {
  border-color: rgba(192,192,192,0.2);
  background: linear-gradient(180deg, rgba(192,192,192,0.04) 0%, var(--bg-card) 100%);
}
.prize-card.bronze {
  border-color: rgba(205,127,50,0.2);
  background: linear-gradient(180deg, rgba(205,127,50,0.04) 0%, var(--bg-card) 100%);
}
.prize-medal { margin-bottom: 12px; }
.prize-amount {
  font-size: 28px;
  font-weight: 700;
  color: var(--fg-strong);
}
.prize-label {
  font-size: 13px;
  color: var(--fg-weak);
  margin-top: 4px;
}
.prizes-cert {
  font-size: 14px;
  color: var(--fg-weak);
  text-align: center;
}

/* ── TIMELINE ── */
.timeline {
  position: relative;
  padding-left: 32px;
  max-width: 640px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--border-dashed);
}
.timeline-item {
  position: relative;
  padding-bottom: 32px;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  align-items: start;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-page);
  border: 2px solid var(--border-dashed);
  z-index: 1;
}
.timeline-dot.active {
  border-color: var(--bg-accent);
  background: var(--bg-accent);
  box-shadow: 0 0 12px rgba(0,115,255,0.4);
}
.timeline-date {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-accent);
  white-space: nowrap;
}
.timeline-text {
  font-size: 15px;
  color: var(--fg-base);
  line-height: 1.5;
}

/* ── OFFLINE PACKAGE ── */
.package-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 40px;
}
.package-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-md);
  transition: border-color 0.25s var(--ease);
}
.package-card:hover { border-color: var(--border-hover); }
.package-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-accent-fade);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--fg-accent);
}
.package-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--fg-strong);
  margin-bottom: 6px;
}
.package-desc {
  font-size: 13px;
  color: var(--fg-weak);
  line-height: 1.5;
}
.package-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.package-limited {
  font-size: 14px;
  color: var(--bg-notice);
  font-weight: 500;
}

/* ── LECTURES ── */
.lectures-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.lecture-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-md);
  transition: border-color 0.25s var(--ease);
}
.lecture-card:hover { border-color: var(--border-hover); }
.lecture-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-accent-fade);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--fg-accent);
}
.lecture-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--fg-strong);
  margin-bottom: 6px;
}
.lecture-desc {
  font-size: 13px;
  color: var(--fg-weak);
  line-height: 1.5;
}

/* ── STARTUP HOUSE ── */
.sh-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 32px;
}
.sh-row--reverse .sh-photo {
  order: -1;
}
.sh-features {
  display: grid;
  gap: 12px;
}
.sh-photo {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-base);
}
.sh-photo img {
  width: 100%;
  display: block;
  object-fit: cover;
}
.sh-feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-md);
  transition: border-color 0.25s var(--ease);
}
.sh-feature:hover { border-color: var(--border-hover); }
.sh-feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-accent-fade);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--fg-accent);
}
.sh-feature-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--fg-strong);
  margin-bottom: 4px;
}
.sh-feature-desc {
  font-size: 13px;
  color: var(--fg-weak);
  line-height: 1.5;
}
.sh-cta {
  display: flex;
  justify-content: center;
}

/* ── DEMO DAY ── */
.dd-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.dd-photo {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-base);
}
.dd-photo img {
  width: 100%;
  display: block;
  object-fit: cover;
}
.dd-venue-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--fg-strong);
  line-height: 1.4;
}
.dd-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--fg-accent);
  text-decoration: none;
  transition: opacity 0.15s var(--ease);
}
.dd-link:hover { opacity: 0.8; }
.dd-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.dd-stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--fg-strong);
  line-height: 1.2;
}
.dd-stat-label {
  font-size: 13px;
  color: var(--fg-weak);
  margin-top: 4px;
}

/* ── TRACKS ── */
.tracks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.track-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 14px;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
  cursor: default;
}
.track-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}
.track-card-custom {
  border-style: dashed;
  border-color: var(--border-dashed);
}
.track-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-accent-fade);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--fg-accent);
}
.track-icon svg {
  width: 20px;
  height: 20px;
}
.track-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--fg-strong);
}
.tracks-note {
  margin-top: 20px;
  font-size: 14px;
  color: #fff;
  text-align: center;
}
/* .tracks-note-highlight {
  color: var(--fg-accent);
  font-weight: bold;
} */
.tracks-platform {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-top: 32px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-md);
}
.tracks-platform-left {
  flex-shrink: 0;
}
.tracks-platform-logo {
  height: 48px;
}
.tracks-platform-desc {
  font-size: 15px;
  color: var(--fg-base);
  line-height: 1.5;
  margin-bottom: 14px;
}
.tracks-services-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px 24px;
}
.tracks-services-list li {
  font-size: 14px;
  color: var(--fg-base);
  position: relative;
  padding-left: 16px;
}
.tracks-services-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--fg-accent);
}
.tracks-platform-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-accent);
  text-decoration: none;
  transition: opacity 0.15s var(--ease);
}
.tracks-platform-link:hover { opacity: 0.8; }

/* ── FORMAT ── */
.format-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.format-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-lg);
  position: relative;
  transition: border-color 0.25s var(--ease);
}
.format-card:hover { border-color: var(--border-hover); }
.format-card-recommended {
  border-color: var(--bg-accent);
}
.format-badge {
  position: absolute;
  top: -1px;
  right: 24px;
  background: var(--bg-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  letter-spacing: 0.02em;
}
.format-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.format-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-accent-fade);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-accent);
  flex-shrink: 0;
}
.format-card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--fg-strong);
}
.format-card-desc {
  font-size: 14px;
  color: var(--fg-base);
  line-height: 1.6;
  margin-bottom: 20px;
}
.format-list {
  list-style: none;
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}
.format-list li {
  font-size: 14px;
  color: var(--fg-base);
  padding-left: 22px;
  position: relative;
  line-height: 1.5;
}
.format-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-accent);
  opacity: 0.5;
}
.format-card-recommended .format-list li::before { opacity: 0.8; }
.format-btn { width: 100%; }
.format-btn .btn-label { flex: 1; }

/* ── PLATFORM ── */
.platform-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.platform-tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.platform-tool {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-md);
  transition: border-color 0.25s var(--ease);
}
.platform-tool:hover { border-color: var(--border-hover); }
.platform-tool-icon {
  margin-bottom: 10px;
  color: var(--fg-accent);
}
.platform-tool-icon svg {
  width: 24px;
  height: 24px;
}
.platform-tool-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-strong);
  margin-bottom: 4px;
}
.platform-tool-desc {
  font-size: 13px;
  color: var(--fg-weak);
  line-height: 1.4;
}
.platform-notice {
  margin-top: 20px;
  padding: 14px 18px;
  background: var(--bg-notice-fade);
  border: 1px solid rgba(242,196,13,0.2);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--bg-notice);
  font-weight: 500;
}
.platform-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--fg-accent);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: color 0.15s var(--ease);
}
.platform-link:hover { color: #3d9aff; }
.platform-desc-narrow {
  margin-bottom: 24px;
  text-align: left;
  margin-left: 0;
}

/* ── JUDGING ── */
.judging-bars {
  display: grid;
  gap: 16px;
  max-width: 640px;
  margin: 0 auto;
}
.judging-row {
  display: grid;
  grid-template-columns: 180px 1fr 60px;
  align-items: center;
  gap: 16px;
}
.judging-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-strong);
}
.judging-bar-bg {
  height: 8px;
  background: rgba(255,255,255,0.06);
  border-radius: 100px;
  overflow: hidden;
}
.judging-bar-fill {
  height: 100%;
  background: var(--bg-accent);
  border-radius: 100px;
  transition: width 0.8s var(--ease);
}
.judging-points {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-accent);
  text-align: right;
}
.judging-details {
  margin-top: 8px;
  padding-left: 196px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.judging-detail {
  font-size: 12px;
  color: var(--fg-weak);
}

/* ── FAQ ── */
.faq-list { display: grid; gap: 8px; max-width: 760px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.25s var(--ease);
}
.faq-item:hover { border-color: var(--border-hover); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  user-select: none;
  font-size: 15px;
  font-weight: 500;
  color: var(--fg-strong);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font);
}
.faq-chevron {
  color: var(--fg-weak);
  transition: transform 0.3s var(--ease);
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}
.faq-item.open .faq-a { max-height: 200px; }
.faq-a-inner {
  padding: 0 24px 18px;
  font-size: 14px;
  color: var(--fg-base);
  line-height: 1.6;
}

/* ── CTA SECTION ── */
.cta-section {
  /* padding: 80px 0; */
  border-top: 1px solid rgba(255,255,255,0.05);
}
.cta-section .container { 
  text-align: center; 
}
.cta-section .section-title { margin-bottom: 12px; }
.cta-desc {
  color: var(--fg-base);
  font-size: 16px;
  margin-bottom: 28px;
}
.cta-steps {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.cta-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: 100px;
}
.cta-step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.cta-step-text {
  font-size: 14px;
  color: var(--fg-base);
  font-weight: 500;
  white-space: nowrap;
}
.cta-step-arrow {
  color: var(--fg-weak);
  display: flex;
  align-items: center;
}
.cta-countries {
  margin-top: 32px;
  font-size: 14px;
  color: var(--fg-weak);
  text-align: center;
}
.cta-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── FOOTER ── */
.footer {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 40px 0;
}
.footer-partners {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.footer-partner-link { display: flex; align-items: center; }
.footer-partner-img {
  opacity: 0.7;
  transition: opacity 0.15s var(--ease);
}
.footer-partner-link:hover .footer-partner-img { opacity: 0.8; }
.footer-center {
  text-align: center;
}
.footer-text {
  font-size: 14px;
  color: var(--fg-weak);
  margin-bottom: 6px;
}
.footer-email {
  font-size: 14px;
  color: var(--fg-weak);
  text-decoration: none;
  transition: color 0.15s var(--ease);
}
.footer-email:hover { color: var(--fg-accent); }
.footer-links { display: flex; gap: 24px; }
.footer-links a {
  color: var(--fg-base);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: -0.02em;
  transition: color 0.15s var(--ease);
}
.footer-links a:hover { color: var(--fg-accent); }

/* ── SCROLL ANIMATIONS ── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .tracks-grid { grid-template-columns: repeat(3, 1fr); }
  .tracks-platform { flex-direction: column; align-items: flex-start; gap: 24px; }
  .package-grid { grid-template-columns: repeat(2, 1fr); }
  .judging-row { grid-template-columns: 140px 1fr 50px; }
  .judging-details { padding-left: 156px; }
  .sh-row { grid-template-columns: 1fr; }
  .sh-row--reverse { direction: ltr; }
  .dd-layout { grid-template-columns: 1fr; }
  .dd-info { text-align: center; }
  .dd-stats { flex-direction: column; align-items: center; }
  .dd-link { justify-content: center; }
  .cta-step-arrow { display: none; }
  .cta-steps { gap: 12px; }
}

@media (max-width: 768px) {
  .lang-switcher-mobile {
    display: flex;
    margin-left: auto;
  }
  .nav-right .lang-switcher {
    display: none;
  }
  .nav-burger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
  }
  .nav-burger .burger-line {
    transform-origin: center;
    transition: transform 0.35s var(--ease), opacity 0.25s var(--ease);
  }
  .nav.menu-open .nav-burger .burger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .nav.menu-open .nav-burger .burger-line:nth-child(2) {
    opacity: 0;
  }
  .nav.menu-open .nav-burger .burger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
  .nav-logo-img { width: 101px; height: 24px; }

  /* Full-screen overlay — always in DOM, controlled via visibility + opacity */
  .nav {
    transition: height 0.4s var(--ease), background 0.4s var(--ease);
  }
  .nav::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 60% 50% at 50% 45%, rgba(0,115,255,0.07) 0%, transparent 70%),
      linear-gradient(170deg, #01101e 0%, #021a33 50%, #01101e 100%);
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.4s var(--ease);
  }
  .nav.menu-open {
    height: 100vh;
    height: 100dvh;
    background: #01101e;
  }
  .nav.menu-open::before {
    opacity: 1;
  }
  .nav.menu-open .nav-inner {
    position: relative;
    z-index: 1;
  }
  /* Closing fade — keeps height while fading overlay to transparent */
  .nav.menu-closing {
    background: transparent;
    transition: background 0.45s var(--ease);
  }
  .nav.menu-closing::before {
    opacity: 0;
    transition: opacity 0.4s var(--ease);
  }

  /* Nav-center: always positioned, hidden by default */
  .nav-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 120px;
    z-index: 99;
    padding: 16px 32px;
    visibility: hidden;
    pointer-events: none;
    transition: visibility 0s 0.35s;
  }
  .nav-center .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 0;
    width: 100%;
    max-width: 300px;
  }
  .nav-center .nav-links li {
    width: 100%;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  .nav-center .nav-links a {
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--fg-base);
    padding: 14px 12px;
    border-radius: 10px;
    transition: color 0.2s var(--ease), background 0.2s var(--ease);
    position: relative;
  }
  .nav-center .nav-links a:hover,
  .nav-center .nav-links a:active {
    color: #fff;
    background: rgba(0,115,255,0.1);
  }
  .nav-center .nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16%;
    right: 16%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,115,255,0.15), transparent);
  }
  .nav-center .nav-links li:last-child a::after {
    display: none;
  }

  /* Open state: slide in with staggered delays */
  .nav-center.open {
    visibility: visible;
    pointer-events: auto;
    transition: visibility 0s 0s;
  }
  .nav-center.open .nav-links li {
    opacity: 1;
    transform: translateY(0);
  }
  .nav-center.open .nav-links li:nth-child(1) { transition-delay: 0.04s; }
  .nav-center.open .nav-links li:nth-child(2) { transition-delay: 0.08s; }
  .nav-center.open .nav-links li:nth-child(3) { transition-delay: 0.12s; }
  .nav-center.open .nav-links li:nth-child(4) { transition-delay: 0.16s; }
  .nav-center.open .nav-links li:nth-child(5) { transition-delay: 0.2s; }
  .nav-center.open .nav-links li:nth-child(6) { transition-delay: 0.24s; }

  /* Closing: reverse stagger (last items leave first) */
  .nav-center:not(.open) .nav-links li:nth-child(6) { transition-delay: 0s; }
  .nav-center:not(.open) .nav-links li:nth-child(5) { transition-delay: 0.03s; }
  .nav-center:not(.open) .nav-links li:nth-child(4) { transition-delay: 0.06s; }
  .nav-center:not(.open) .nav-links li:nth-child(3) { transition-delay: 0.09s; }
  .nav-center:not(.open) .nav-links li:nth-child(2) { transition-delay: 0.12s; }
  .nav-center:not(.open) .nav-links li:nth-child(1) { transition-delay: 0.15s; }

  /* Nav-right: always positioned, hidden by default */
  .nav-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 99;
    padding: 20px 32px;
    padding-bottom: max(24px, env(safe-area-inset-bottom, 24px));
    opacity: 0;
    transform: translateY(24px);
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0s 0.35s;
  }
  .nav-right.open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.4s var(--ease) 0.18s, transform 0.4s var(--ease) 0.18s, visibility 0s 0s;
  }
  .nav-right .nav-cta {
    font-size: 16px;
  }
  .nav-right .nav-cta-label {
    height: 46px;
    padding: 0 8px 0 24px;
    border-radius: 14px 0 0 14px;
    font-size: 16px;
  }
  .nav-right .nav-cta-notch {
    height: 46px;
    width: auto;
  }
  .lang-switcher-mobile .lang-btn {
    font-size: 13px;
    padding: 4px 5px;
  }

  .section-frame { padding: 24px 16px; }
  .section-divider { height: 56px; }
  .reg-banner { font-size: 13px; }
  .hero { padding-top: 170px; }
  .hero .section-frame { padding-top: 44px; padding-bottom: 60px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-stat:nth-child(3) { border-left: none; }
  .hero-stat:nth-child(n+3) { border-top: 1px solid var(--border); }
  .tracks-grid { grid-template-columns: 1fr 1fr; }
  .tracks-services-list { grid-template-columns: repeat(2, 1fr); }
  .lectures-grid { grid-template-columns: 1fr; }
  .lecture-card { text-align: center; align-items: center; }
  .lecture-icon { margin: 0 auto; }
  .format-grid { grid-template-columns: 1fr; }
  .cta-steps { flex-direction: column; align-items: center; }
  .cta-step { width: 100%; max-width: 340px; text-align: left; }
  .cta-step-arrow { display: none; }
  .platform-content { grid-template-columns: 1fr; }
  .package-grid { grid-template-columns: 1fr; }
  .prizes-row { flex-direction: column; align-items: center; }
  .prize-card { max-width: 300px; width: 100%; }
  .prize-card.gold { margin-bottom: 0; order: -1; }
  .judging-row { grid-template-columns: 1fr; gap: 6px; }
  .judging-bar-bg { margin-top: 4px; }
  .judging-details { padding-left: 0; }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 480px) {
  .tracks-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero h1 { font-size: 28px; }
  .hero-partners { gap: 16px; }
  .hero-partner-logo { height: 22px; }
  .package-cta { flex-direction: column; align-items: flex-start; }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
  }
  .hero-stat { padding: 24px 16px; }
  .dd-stats { gap: 16px; }
  .cta-step-text { white-space: normal; flex: 1; }
}