:root {
  --bg-black: #050508;
  --bg-dark: #0a0a0f;
  --bg-card: #111118;
  --bg-card-hover: #18181f;
  --border: #1e1e2a;
  --border-bright: #2e2e3e;
  --neon: #ff8300;
  --neon-dim: #e67600;
  --neon-glow: rgba(255, 131, 0, 0.15);
  --neon-glow-strong: rgba(255, 131, 0, 0.35);
  --white: #ffffff;
  --gray-100: #f0f0f5;
  --gray-300: #c0c0cc;
  --gray-500: #707080;
  --gray-700: #303040;
  --accent-blue: #00d4ff;
  --accent-purple: #9b51e0;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg-black);
  color: var(--white);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── NOISE TEXTURE OVERLAY ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 1000;
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-black); }
::-webkit-scrollbar-thumb { background: var(--neon); border-radius: 3px; }

/* ─── TYPOGRAPHY ─── */
h1, h2, h3, h4, h5 { font-family: 'Syne', sans-serif; line-height: 1.1; }
.mono { font-family: 'JetBrains Mono', monospace; }

/* ─── HEROICONS (outline 24) ─── */
.icon-svg {
  flex-shrink: 0;
  color: var(--neon);
}
.feature-chip .icon-svg {
  width: 1.25rem;
  height: 1.25rem;
}
.track-icon .icon-svg {
  width: 1.5rem;
  height: 1.5rem;
}
.track-icon--cyber {
  background: rgba(0, 212, 255, 0.08);
  border-color: rgba(0, 212, 255, 0.2);
}
.track-icon--cyber .icon-svg {
  color: var(--accent-blue);
}
.vd-icon .icon-svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--neon);
}
.btn-icon {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

/* ─── NAV ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s, backdrop-filter 0.4s;
}
nav.scrolled {
  background: rgba(5, 5, 8, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}
@media (max-width: 480px) {
  .nav-logo {
    font-size: 0.8rem;
  }
}
@media (max-width: 360px) {
  .nav-logo {
    font-size: 0.6rem;
  }
}
.nav-logo span { color: var(--neon); }
.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  color: var(--gray-300);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--neon); }
.nav-cta {
  background: var(--neon);
  color: var(--bg-black);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 22px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
}
.nav-cta:hover {
  background: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 0 30px var(--neon-glow-strong);
}

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 60px 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  transform: scale(1.1);
  transition: transform 0.1s linear;
}
.hero-bg video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(5, 5, 8, 0.3) 0%,
    rgba(5, 5, 8, 0.5) 40%,
    rgba(5, 5, 8, 0.92) 80%,
    var(--bg-black) 100%
  );
}
.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 131, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 131, 0, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to bottom, transparent 0%, black 40%, black 80%, transparent 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1100px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 131, 0, 0.08);
  border: 1px solid rgba(255, 131, 0, 0.3);
  padding: 8px 16px;
  margin-bottom: 28px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--neon);
  font-family: 'JetBrains Mono', monospace;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--neon);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--neon-glow-strong); }
  50% { opacity: 0.6; box-shadow: 0 0 0 6px transparent; }
}
.hero h1 {
  font-size: clamp(1.5rem, 8vw, 7.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 12px;
}
.hero h1 .outline {
  -webkit-text-stroke: 2px var(--white);
  color: transparent;
}
.hero h1 .accent { color: var(--neon); }
.hero-sub {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 300;
  color: var(--gray-300);
  margin-bottom: 40px;
  max-width: 600px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 48px;
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-meta-item .label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-500);
}
.hero-meta-item .value {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
}
.hero-meta-item .value.neon { color: var(--neon); }
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--neon);
  color: var(--bg-black);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 16px 36px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s;
  clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
}
.btn-primary:hover {
  background: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 40px var(--neon-glow-strong);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--white);
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 16px 36px;
  border: 1px solid var(--border-bright);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s;
}
.btn-secondary:hover {
  border-color: var(--neon);
  color: var(--neon);
  box-shadow: 0 0 20px var(--neon-glow);
}
.hero-scroll {
  position: absolute;
  bottom: 30px; right: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}
.hero-scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-500);
  writing-mode: vertical-rl;
}
.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--neon), transparent);
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ─── TICKER ─── */
.ticker {
  background: var(--neon);
  padding: 14px 0;
  overflow: hidden;
  white-space: nowrap;
}
.ticker-inner {
  display: inline-flex;
  gap: 0;
  animation: ticker 20s linear infinite;
}
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  padding: 0 40px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg-black);
}
.ticker-sep {
  width: 6px; height: 6px;
  background: var(--bg-black);
  border-radius: 50%;
  opacity: 0.4;
}
@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ─── SECTION BASE ─── */
section { padding: 100px 60px; }
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 20px;
}
.section-desc {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--gray-300);
  max-width: 700px;
  line-height: 1.7;
}
.divider {
  width: 60px;
  height: 3px;
  background: var(--neon);
  margin: 24px 0;
}

/* ─── STATS BAR ─── */
.stats-bar {
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 60px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat-item {
  padding: 0 40px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat-item:first-child { padding-left: 0; }
.stat-item:last-child { border-right: none; }
.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--neon);
  line-height: 1;
}
.stat-label {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--gray-500);
  letter-spacing: 0.04em;
}

/* ─── ABOUT ─── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.about-image:hover img { transform: scale(1.04); }
.about-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,131,0,0.15), transparent 60%);
  z-index: 1;
}
.about-image-frame {
  position: absolute;
  top: -12px; left: -12px;
  right: 12px; bottom: 12px;
  border: 1px solid var(--neon);
  opacity: 0.3;
  pointer-events: none;
}
.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 36px;
}
.feature-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 0.875rem;
  font-weight: 500;
  transition: border-color 0.2s;
}
.feature-chip:hover { border-color: var(--neon); }

/* ─── ORGANIZERS (kimler düzenliyor) ─── */
.organizers-section {
  background: var(--bg-black);
}
.organizers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 56px;
  align-items: start;
}
.organizer-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.organizer-card:hover {
  border-color: var(--border-bright);
  box-shadow: 0 0 28px var(--neon-glow);
}
.organizer-card--lead {
  grid-column: 1 / -1;
}
.organizer-photo {
  overflow: hidden;
  background: var(--bg-dark);
}
.organizer-photo--wide {
  width: 100%;
  aspect-ratio: 36 / 9;
}
.organizer-photo--wide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}
.organizer-photo--square {
  aspect-ratio: 1 / 1;
}
.organizer-photo--square img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.organizer-body {
  padding: 20px 22px 22px;
}
.organizer-role {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 6px;
}
.organizer-name {
  font-family: 'Syne', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  line-height: 1.2;
}

/* ─── PROGRAM ─── */
.program-section { background: var(--bg-dark); }

.program-soon {
  margin-top: 56px;
  display: flex;
  justify-content: center;
}
.program-soon-card {
  width: 100%;
  max-width: 640px;
  padding: 44px 40px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.program-soon-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 131, 0, 0.35),
    var(--neon),
    rgba(255, 131, 0, 0.35),
    transparent
  );
  background-size: 220% 100%;
  animation: program-soon-bar 5s ease-in-out infinite;
}
@keyframes program-soon-bar {
  0%, 100% { background-position: 0% 50%; opacity: 0.85; }
  50% { background-position: 100% 50%; opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .program-soon-card::before {
    animation: none;
    background: var(--neon);
    opacity: 0.55;
  }
}
.program-soon-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-bright);
  color: var(--neon);
  box-shadow: 0 0 32px var(--neon-glow);
}
.program-soon-icon svg {
  width: 26px;
  height: 26px;
}
.program-soon-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 12px;
}
.program-soon-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 14px;
}
.program-soon-desc {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--gray-300);
  line-height: 1.65;
  max-width: 460px;
  margin: 0 auto 28px;
}
.program-soon-dates {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.program-soon-dates li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 104px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: var(--bg-dark);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.program-soon-dates li:hover {
  border-color: var(--border-bright);
  box-shadow: 0 0 20px var(--neon-glow);
}
.program-soon-date-num {
  font-family: 'Syne', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--white);
  line-height: 1;
}
.program-soon-date-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-500);
  text-align: center;
  line-height: 1.35;
}

.program-tabs-wrap {
  margin-top: 60px;
  position: relative;
}
.program-tab-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.program-tab-bar {
  display: none;
}
.program-tab-label {
  flex: 1;
  text-align: center;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 8px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--gray-500);
  transition: color 0.2s, background 0.2s, border-color 0.2s;
  user-select: none;
}
.program-tab-label:hover {
  color: var(--gray-300);
  border-color: var(--border-bright);
}
.program-days {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 0;
}
.program-day {
  background: var(--bg-card);
  padding: 40px;
  transition: background 0.3s;
  position: relative;
  overflow: hidden;
}
.program-day::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--border);
  transition: background 0.3s;
}
.program-day:hover::before { background: var(--neon); }
.program-day:hover { background: var(--bg-card-hover); }
.day-num {
  font-family: 'Syne', sans-serif;
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--border-bright);
  line-height: 1;
  margin-bottom: 20px;
  transition: color 0.3s;
}
.program-day:hover .day-num { color: var(--neon); }
.day-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.day-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--neon);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}
.day-sessions {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.day-sessions li {
  display: flex;
  gap: 14px;
  font-size: 0.9rem;
  color: var(--gray-300);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.day-sessions li:last-child { border-bottom: none; padding-bottom: 0; }
.session-time {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--gray-500);
  white-space: nowrap;
  padding-top: 2px;
  min-width: 132px;
  flex-shrink: 0;
}
.session-speaker {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-top: 2px;
}
.session-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255,131,0,0.1);
  color: var(--neon);
  border: 1px solid rgba(255,131,0,0.2);
  margin-top: 4px;
  align-self: flex-start;
}
.session-tag.cyber { background: rgba(0,212,255,0.1); color: var(--accent-blue); border-color: rgba(0,212,255,0.2); }
.session-tag.social { background: rgba(155,81,224,0.1); color: var(--accent-purple); border-color: rgba(155,81,224,0.2); }
.session-tag.mola {
  background: rgba(112,112,128,0.12);
  color: var(--gray-500);
  border-color: var(--border-bright);
  text-transform: none;
  letter-spacing: 0.04em;
}

/* ─── TRACKS ─── */
.tracks-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 60px;
}
.track-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
  cursor: default;
}
.track-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--neon);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.track-card:hover { border-color: var(--border-bright); background: var(--bg-card-hover); }
.track-card:hover::after { transform: scaleX(1); }
.track-icon {
  width: 56px; height: 56px;
  background: rgba(255,131,0,0.08);
  border: 1px solid rgba(255,131,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-sizing: border-box;
}
.track-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.track-card p {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--gray-300);
  line-height: 1.7;
  margin-bottom: 24px;
}
.track-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.topic-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  padding: 5px 10px;
  background: var(--bg-dark);
  border: 1px solid var(--border-bright);
  color: var(--gray-300);
  transition: all 0.2s;
}
.topic-tag:hover { border-color: var(--neon); color: var(--neon); }

/* ─── INSTRUCTORS ─── */
.instructors-section { background: var(--bg-black); }
.instructors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 60px;
}
.instructor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.3s;
  cursor: default;
}
.instructor-card:hover {
  border-color: var(--neon);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 30px var(--neon-glow);
}
.instructor-img {
  aspect-ratio: 1;
  overflow: hidden;
  position: relative;
}
.instructor-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(30%);
  transition: all 0.4s;
}
.instructor-card:hover .instructor-img img {
  filter: grayscale(0%);
  transform: scale(1.05);
}
.instructor-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5,5,8,0.8) 0%, transparent 50%);
}
.instructor-info {
  padding: 20px;
}
.instructor-name {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.instructor-role {
  font-size: 0.8rem;
  color: var(--neon);
  font-weight: 500;
  margin-bottom: 8px;
}
.instructor-bio {
  font-size: 0.8rem;
  color: var(--gray-500);
  line-height: 1.5;
}

/* ─── VENUE ─── */
.venue-section { background: var(--bg-dark); }
.venue-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
  margin-top: 60px;
}
.venue-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.venue-image img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.venue-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,131,0,0.1), transparent);
}
.venue-details { display: flex; flex-direction: column; gap: 28px; }
.venue-detail-item {
  display: flex;
  gap: 20px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.venue-detail-item:last-child { border-bottom: none; }
.vd-icon {
  width: 44px; height: 44px;
  background: var(--neon-glow);
  border: 1px solid rgba(255,131,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-sizing: border-box;
}
.vd-text h4 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 4px;
}
.vd-text p {
  font-size: 1rem;
  font-weight: 500;
  color: var(--white);
}
.vd-text p small {
  display: block;
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--gray-500);
  margin-top: 2px;
}
.vd-text p small a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.vd-text p small a:hover {
  color: var(--white);
}

/* ─── GALLERY ─── */
.gallery-section { padding: 0; }
.gallery-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 300px 300px;
  gap: 4px;
}
.gallery-item {
  overflow: hidden;
  position: relative;
}
.gallery-item:first-child { grid-row: 1 / 3; }
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  filter: grayscale(20%);
}
.gallery-item:hover img { transform: scale(1.06); filter: grayscale(0%); }
.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5,5,8,0.3);
  transition: opacity 0.3s;
}
.gallery-item:hover .gallery-item-overlay { opacity: 0; }

/* ─── CTA SECTION ─── */
.cta-section {
  background: var(--bg-black);
  text-align: center;
  padding: 120px 60px;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255,131,0,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section .section-title { font-size: clamp(2.5rem, 5vw, 5rem); }
.cta-section .section-title .outline {
  -webkit-text-stroke: 2px var(--neon);
  color: transparent;
}
.cta-section p {
  font-size: 1.1rem;
  color: var(--gray-300);
  max-width: 560px;
  margin: 20px auto 48px;
}
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.capacity-bar {
  max-width: 400px;
  margin: 60px auto 0;
}
.capacity-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}
.capacity-header span:first-child {
  font-size: 0.75rem;
  color: var(--gray-500);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.capacity-header span:last-child {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--neon);
}
.bar-track {
  width: 100%;
  height: 4px;
  background: var(--border);
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  background: var(--neon);
  width: 0%;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 10px var(--neon);
}

/* ─── ORGANIZERS · PARTNERS · SPONSOR ─── */
.stakeholders-section {
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  padding: 80px 60px;
}
.stakeholder-group {
  margin-top: 64px;
}
.stakeholder-group:first-child { margin-top: 0; }
.stakeholders-label {
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 36px;
}
.stakeholders-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px 40px;
}
.stakeholder-card {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 200px;
  box-sizing: border-box;
  padding: 16px 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.stakeholder-group--organizers .stakeholder-card {
  height: 120px;
  min-height: 120px;
}
.stakeholder-group--organizers .stakeholder-card img {
  max-height: 88px;
}
.stakeholder-group--partners .stakeholder-card {
  height: 100px;
  min-height: 100px;
}
.stakeholder-group--partners .stakeholder-card img {
  max-height: 68px;
}
.stakeholder-card:hover {
  border-color: var(--border-bright);
  box-shadow: 0 0 24px var(--neon-glow);
}
.stakeholder-card img {
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(0.15);
  opacity: 0.92;
  transition: filter 0.25s, opacity 0.25s;
  border-radius: 4px;
}
.stakeholder-card:hover img {
  filter: grayscale(0);
  opacity: 1;
}
.stakeholder-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.sponsor-text-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 220px;
  box-sizing: border-box;
  padding: 12px 24px;
  border: 1px solid rgba(255,131,0,0.35);
  background: rgba(255,131,0,0.06);
}
.stakeholder-group--sponsors .sponsor-text-card {
  height: 80px;
  min-height: 80px;
}
.stakeholder-group--sponsors .sponsor-text-card img {
  max-height: 56px;
  max-width: 100%;
  object-fit: contain;
}
.sponsor-text-card .sponsor-logo-text {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--white);
}
.sponsor-logo-text .dot { color: var(--neon); }

/* ─── FAQ ─── */
.faq-section { background: var(--bg-black); }
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-top: 60px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 32px;
  transition: border-color 0.3s;
  cursor: pointer;
}
.faq-item--anchor {
  scroll-margin-top: 100px;
}
.faq-item:hover { border-color: var(--border-bright); }
.faq-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.faq-item h4::before {
  content: '?';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  background: var(--neon-glow);
  border: 1px solid rgba(255,131,0,0.3);
  color: var(--neon);
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  flex-shrink: 0;
  margin-top: 1px;
}
.faq-item p {
  font-size: 0.9rem;
  color: var(--gray-300);
  line-height: 1.7;
  padding-left: 34px;
}
.faq-item p a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.faq-item p a:hover {
  color: var(--white);
}

/* ─── FOOTER ─── */
footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  padding: 60px 60px 30px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-brand .nav-logo { font-size: 1.5rem; margin-bottom: 16px; }
.footer-brand p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 20px;
}
.footer-sponsor-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}
.footer-sponsor-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--gray-500);
}
.footer-sponsor-name {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--neon);
}
.footer-col h5 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 20px;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col ul a {
  font-size: 0.9rem;
  color: var(--gray-300);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-col ul a:hover { color: var(--neon); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}
.footer-bottom p {
  font-size: 0.8rem;
  color: var(--gray-500);
}
.footer-bottom span { color: var(--neon); }
.social-links { display: flex; gap: 12px; }
.social-link {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--gray-500);
  text-decoration: none;
  transition: all 0.2s;
}
.social-link:hover {
  border-color: var(--neon);
  color: var(--neon);
}

/* ─── SCROLL ANIMATIONS ─── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger.visible > *:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.08s; }
.stagger.visible > *:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.16s; }
.stagger.visible > *:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.24s; }
.stagger.visible > *:nth-child(5) { opacity: 1; transform: translateY(0); transition-delay: 0.32s; }
.stagger.visible > *:nth-child(6) { opacity: 1; transform: translateY(0); transition-delay: 0.40s; }
.stagger.visible > *:nth-child(7) { opacity: 1; transform: translateY(0); transition-delay: 0.48s; }
.stagger.visible > *:nth-child(8) { opacity: 1; transform: translateY(0); transition-delay: 0.56s; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1100px) {
  nav { padding: 18px 30px; }
  section { padding: 80px 30px; }
  .stats-bar { padding: 40px 30px; }
  .hero { padding: 0 30px 70px; }
  .hero-scroll { right: 30px; }
  .stakeholders-section { padding: 60px 30px; }
  footer { padding: 60px 30px 30px; }
  .instructors-grid { grid-template-columns: repeat(2, 1fr); }
  .program-soon { margin-top: 40px; }
  .program-soon-card { padding: 36px 22px 32px; }
}
@media (max-width: 1200px) {
  .nav-links { display: none; }
  .about-grid, .venue-grid { grid-template-columns: 1fr; gap: 40px; }
  .organizers-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 40px;
  }
  .organizer-card--lead {
    grid-column: auto;
  }
  .organizer-photo--wide {
    aspect-ratio: 1 / 1;
    max-height: none;
  }
  .organizer-photo--wide img {
    object-position: center top;
  }
  .program-tab-bar {
    display: flex;
    gap: 6px;
    margin-bottom: 0;
  }
  .program-days {
    display: block;
    gap: 0;
  }
  .program-day {
    display: none;
    margin-top: 6px;
    border: 1px solid var(--border);
  }
  #program-tab-d1:checked ~ .program-days .program-day:nth-child(1),
  #program-tab-d2:checked ~ .program-days .program-day:nth-child(2),
  #program-tab-d3:checked ~ .program-days .program-day:nth-child(3) {
    display: block;
  }
  #program-tab-d1:checked ~ .program-tab-bar .program-tab-label[for="program-tab-d1"],
  #program-tab-d2:checked ~ .program-tab-bar .program-tab-label[for="program-tab-d2"],
  #program-tab-d3:checked ~ .program-tab-bar .program-tab-label[for="program-tab-d3"] {
    background: var(--neon);
    color: var(--bg-black);
    border-color: var(--neon);
  }
  .program-section .session-time {
    min-width: 0;
    white-space: normal;
    max-width: 118px;
  }
  .tracks-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); padding: 20px 0; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .gallery-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .gallery-item:first-child { grid-row: 1; }
  .instructors-grid { grid-template-columns: 1fr 1fr; }
}

.hide {
  display: none;
}