/* ========================================================
   VIETNAM DATA & AI SUMMIT 2026 — LANDING PAGE STYLES
   ======================================================== */

/* ── ROOT VARIABLES ──────────────────────────────────── */
:root {
  --bg-0: #020814;
  --bg-1: #04101f;
  --bg-2: #081828;
  --bg-3: #0c2040;
  --card-bg: rgba(8, 20, 44, 0.85);

  --border: rgba(30, 70, 140, 0.45);
  --border-h: rgba(245, 200, 66, 0.45);

  --gold-1: #FFD700;
  --gold-2: #F5C53E;
  --gold-3: #E8A800;
  --blue-1: #1565C0;
  --blue-2: #1E88E5;
  --blue-3: #64B5F6;

  --t1: #ffffff;
  --t2: #8eb8e5;
  --t3: #4f7ca8;
  --t4: #2d506e;

  --g-gold:  linear-gradient(135deg, #F5C53E 0%, #FF9900 100%);
  --g-gold2: linear-gradient(135deg, #FFD700 0%, #F5C53E 100%);
  --g-blue:  linear-gradient(135deg, #1565C0 0%, #1E88E5 100%);
  --g-dark:  linear-gradient(160deg, #04101f 0%, #081828 100%);
  --g-card:  linear-gradient(155deg, rgba(8,24,52,0.92) 0%, rgba(4,14,34,0.96) 100%);

  --r-sm: 8px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-full: 9999px;

  --shadow-s:  0 4px 20px rgba(0,0,0,0.4);
  --shadow-m:  0 12px 40px rgba(0,0,0,0.5);
  --shadow-l:  0 24px 64px rgba(0,0,0,0.6);
  --shadow-gold: 0 8px 32px rgba(245, 197, 62, 0.35);
  --shadow-blue: 0 8px 32px rgba(21,101,192,0.35);

  --dur-fast: 0.18s;
  --dur-med:  0.32s;
  --dur-slow: 0.6s;
  --ease: cubic-bezier(.4,0,.2,1);
}

/* ── RESET & BASE ────────────────────────────────────── */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-0);
  color: var(--t1);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { display: block; max-width: 100%; height: auto; }
a   { color: inherit; text-decoration: none; }
ul,ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: var(--blue-1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-2); }

/* ── SCROLL PROGRESS ─────────────────────────────────── */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--g-gold);
  z-index: 1001;
  transition: width 0.08s linear;
}

/* ── LAYOUT ──────────────────────────────────────────── */
.container { max-width: 1280px; margin: 0 auto; padding: 0 2rem; }
.section    { padding: 6rem 0; }
.section-sm { padding: 4rem 0; }
.bg-alt  { background: var(--bg-1); }
.bg-card { background: var(--g-dark); }
.bordered-top    { border-top:    1px solid var(--border); }
.bordered-bottom { border-bottom: 1px solid var(--border); }

/* ── TYPOGRAPHY COMPONENTS ───────────────────────────── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin-bottom: 0.85rem;
}
.eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--g-gold);
  border-radius: 1px;
  flex-shrink: 0;
}
.heading-xl {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
}
.heading-lg {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
}
.heading-md {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.3;
}
.lead {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  color: var(--t2);
  line-height: 1.85;
  max-width: 620px;
}
.lead.wide { max-width: 820px; }
.text-gold {
  background: var(--g-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-center { text-align: center; }
.text-center .lead { margin: 0 auto; }

/* ── BUTTONS ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: var(--r-full);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  transition: all var(--dur-med) var(--ease);
  white-space: nowrap;
  cursor: pointer;
}
.btn-primary {
  background: var(--g-gold);
  color: #000;
  box-shadow: 0 4px 18px rgba(245,197,62,0.22);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-gold);
}
.btn-ghost {
  background: transparent;
  color: var(--t1);
  border: 2px solid rgba(255,255,255,0.2);
}
.btn-ghost:hover {
  border-color: var(--gold-2);
  color: var(--gold-2);
  transform: translateY(-3px);
}
.btn-lg { padding: 1.1rem 2.5rem; font-size: 1rem; }
.btn-sm { padding: 0.6rem 1.4rem; font-size: 0.82rem; }

/* ── CARDS ───────────────────────────────────────────── */
.card {
  background: var(--g-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(10px);
  transition: all var(--dur-med) var(--ease);
}
.card:hover {
  border-color: var(--border-h);
  transform: translateY(-6px);
  box-shadow: var(--shadow-m);
}
.card-gold-accent { position: relative; overflow: hidden; }
.card-gold-accent::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--g-gold);
}

/* ── NAVIGATION ──────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2.5rem;
  transition: background var(--dur-med), padding var(--dur-med), box-shadow var(--dur-med);
}
.nav.is-scrolled {
  background: rgba(2, 8, 20, 0.96);
  backdrop-filter: blur(18px);
  padding: 0.85rem 2.5rem;
  box-shadow: 0 2px 30px rgba(0,0,0,0.7);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.nav-brand-logo {
  height: 34px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.nav-brand-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 0.88rem;
  line-height: 1.25;
  letter-spacing: 0.04em;
  background: var(--g-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}
.nav-menu a {
  padding: 0.5rem 0.9rem;
  border-radius: var(--r-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--t2);
  transition: color var(--dur-fast), background var(--dur-fast);
}
.nav-menu a:hover {
  color: var(--t1);
  background: rgba(255,255,255,0.06);
}
.nav-actions { display: flex; align-items: center; gap: 0.75rem; }
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  border-radius: var(--r-sm);
  transition: background var(--dur-fast);
}
.nav-hamburger:hover { background: rgba(255,255,255,0.06); }
.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--t2);
  border-radius: 1px;
  transition: all var(--dur-med) var(--ease);
  transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(2,8,20,0.98);
  backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-med) var(--ease);
}
.mobile-overlay.open { opacity: 1; pointer-events: all; }
.mobile-overlay a {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--t3);
  letter-spacing: -0.01em;
  padding: 0.6rem 2rem;
  transition: color var(--dur-fast), transform var(--dur-fast);
}
.mobile-overlay a:hover { color: var(--gold-2); transform: translateX(8px); }
.mobile-overlay .mobile-cta { margin-top: 1.5rem; }

/* ── HERO ─────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 8rem 2rem 5rem;
}

/* Background layers */
.hero-bg        { position: absolute; inset: 0; z-index: 0; }
.hero-bg-img    {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0.18;
  filter: saturate(0.7) blur(1px);
  transform-origin: center;
  will-change: transform;
}
.hero-bg-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    170deg,
    rgba(2,8,20,0.75) 0%,
    rgba(2,8,20,0.35) 35%,
    rgba(2,8,20,0.45) 65%,
    rgba(2,8,20,1)   100%
  );
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(30,70,140,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,70,140,0.12) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-bg-radials {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 15% 50%, rgba(21,101,192,0.18) 0%, transparent 100%),
    radial-gradient(ellipse 40% 35% at 85% 25%, rgba(245,197,62,0.07) 0%, transparent 100%),
    radial-gradient(ellipse 50% 40% at 55% 85%, rgba(21,101,192,0.12) 0%, transparent 100%);
}
#particles-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Content */
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 920px;
}
.hero-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 1.1rem;
  border-radius: var(--r-full);
  background: rgba(245,197,62,0.08);
  border: 1px solid rgba(245,197,62,0.25);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gold-2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}
.hero-live-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gold-2);
  box-shadow: 0 0 10px var(--gold-2);
  animation: live-pulse 2s ease infinite;
}
@keyframes live-pulse {
  0%,100% { opacity:1; transform:scale(1); box-shadow:0 0 10px var(--gold-2); }
  50%      { opacity:.6; transform:scale(.8); box-shadow:0 0 4px var(--gold-2); }
}
.hero-subtitle-small {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(0.85rem, 1.8vw, 1.05rem);
  font-weight: 600;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 0.4rem;
}
.hero-title-main {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: clamp(3.5rem, 10vw, 7.5rem);
  line-height: 0.95;
  letter-spacing: -0.025em;
  text-transform: uppercase;
  background: var(--g-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}
.hero-title-conference {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: clamp(1.5rem, 4.5vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--t1);
  margin-bottom: 0.6rem;
}
.hero-title-vi {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--t2);
  margin-bottom: 2.5rem;
}
.hero-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}
.hero-ornament-line { width: 56px; height: 1px; background: var(--g-gold); }
.hero-ornament-diamond {
  width: 8px; height: 8px;
  border: 2px solid var(--gold-2);
  transform: rotate(45deg);
}
.hero-meta-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem 2rem;
  margin-bottom: 3rem;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.95rem;
  color: var(--t2);
}
.hero-meta-icon { color: var(--gold-2); font-size: 1rem; flex-shrink: 0; }
.hero-meta-item strong { color: var(--t1); font-weight: 600; }
.hero-meta-sep {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--t4);
}
.hero-cta-row {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Scroll indicator */
.hero-scroll-hint {
  position: absolute;
  bottom: 2.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}
.scroll-mouse {
  width: 22px; height: 34px;
  border: 2px solid var(--t4);
  border-radius: 11px;
  position: relative;
}
.scroll-wheel {
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  background: var(--gold-2);
  border-radius: 50%;
  animation: scroll-down 2.2s ease infinite;
}
@keyframes scroll-down {
  0%   { top: 5px;  opacity:1; }
  100% { top: 21px; opacity:0; }
}
.scroll-text {
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--t4);
}

/* ── STATS BAR ───────────────────────────────────────── */
.stats-bar {
  background: linear-gradient(135deg, rgba(8,24,52,0.97) 0%, rgba(12,32,64,0.97) 100%);
  border-top:    1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3rem 0;
}
.stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat-cell {
  text-align: center;
  padding: 1.5rem 1rem;
  position: relative;
}
.stat-cell + .stat-cell::before {
  content: '';
  position: absolute;
  left: 0; top: 25%; bottom: 25%;
  width: 1px;
  background: var(--border);
}
.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 3.75rem;
  line-height: 1;
  background: var(--g-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}
.stat-caption {
  font-size: 0.85rem;
  color: var(--t3);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ── ABOUT SECTION ───────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}
.about-body p {
  font-size: 0.975rem;
  color: var(--t2);
  line-height: 1.9;
  margin-bottom: 1.25rem;
}
.quote-block {
  margin: 2.25rem 0;
  padding: 1.75rem 2rem 1.75rem 2.25rem;
  background: linear-gradient(135deg, rgba(12,32,64,0.8) 0%, rgba(20,50,100,0.5) 100%);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold-2);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  position: relative;
}
.quote-block::before {
  content: '"';
  position: absolute;
  top: -0.75rem; left: 1.5rem;
  font-size: 5rem;
  color: var(--gold-2);
  opacity: 0.15;
  font-family: 'Georgia', serif;
  line-height: 1;
  pointer-events: none;
}
.quote-block p {
  font-size: 1.025rem;
  font-style: italic;
  color: var(--t1);
  line-height: 1.7;
  margin: 0;
}
.about-visual { position: relative; }
.about-main-img {
  width: 100%;
  border-radius: var(--r-xl);
  box-shadow: 0 40px 100px rgba(0,0,0,0.7);
  border: 1px solid var(--border);
}
.about-float-card {
  position: absolute;
  bottom: -1.5rem;
  left: -2rem;
  background: var(--g-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-m);
  backdrop-filter: blur(16px);
  min-width: 200px;
}
.about-float-card .fc-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold-2);
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.about-float-card .fc-value {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1.6rem;
  color: var(--t1);
}
.about-float-card .fc-sub {
  font-size: 0.8rem;
  color: var(--t2);
}
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}
.about-tag {
  padding: 0.38rem 0.9rem;
  border-radius: var(--r-full);
  font-size: 0.8rem;
  font-weight: 500;
  background: rgba(21,101,192,0.12);
  border: 1px solid rgba(21,101,192,0.25);
  color: var(--blue-3);
  transition: all var(--dur-fast);
}
.about-tag:hover { background: rgba(21,101,192,0.22); border-color: var(--blue-2); }

/* ── EXHIBITION ──────────────────────────────────────── */
.exh-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.exh-features { margin-top: 2.5rem; }
.exh-feature {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
  transition: all var(--dur-fast);
}
.exh-feature:last-child { border-bottom: none; }
.exh-feature:hover { padding-left: 0.5rem; }
.feature-icon-box {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  background: rgba(245,197,62,0.1);
  border: 1px solid rgba(245,197,62,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  transition: all var(--dur-fast);
}
.exh-feature:hover .feature-icon-box { background: rgba(245,197,62,0.18); }
.feature-text h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.975rem;
  color: var(--t1);
  margin-bottom: 0.35rem;
}
.feature-text p { font-size: 0.875rem; color: var(--t2); line-height: 1.65; }

.exh-panel {
  background: var(--g-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-l);
}
.exh-panel-img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
}
.exh-panel-body { padding: 2.25rem; }
.exh-panel-body h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}
.exh-panel-body p { font-size: 0.9rem; color: var(--t2); line-height: 1.7; margin-bottom: 1.75rem; }
.exh-stats-row {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}
.exh-stat-box {
  text-align: center;
  padding: 0.85rem 0.5rem;
  background: rgba(245,197,62,0.05);
  border: 1px solid rgba(245,197,62,0.12);
  border-radius: var(--r-sm);
}
.exh-stat-box .n {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1.6rem;
  background: var(--g-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.exh-stat-box .l { font-size: 0.72rem; color: var(--t3); margin-top: 0.15rem; }

/* ── KEY FACTORS ─────────────────────────────────────── */
.factors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4rem;
}
.factor-card {
  position: relative;
  overflow: hidden;
  background: var(--g-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 2.75rem 2.25rem;
  text-align: center;
  transition: all var(--dur-med) var(--ease);
}
.factor-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--g-gold);
}
.factor-card::after {
  content: attr(data-num);
  position: absolute;
  bottom: -1rem;
  right: 0.5rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 6rem;
  line-height: 1;
  color: var(--gold-2);
  opacity: 0.04;
  transition: opacity var(--dur-med);
}
.factor-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 28px 70px rgba(0,0,0,0.55);
  border-color: rgba(245,197,62,0.3);
}
.factor-card:hover::after { opacity: 0.08; }
.factor-icon-wrap {
  width: 80px; height: 80px;
  border-radius: var(--r-lg);
  background: rgba(245,197,62,0.08);
  border: 1px solid rgba(245,197,62,0.15);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.75rem;
  font-size: 2.4rem;
  transition: all var(--dur-med);
}
.factor-card:hover .factor-icon-wrap {
  background: rgba(245,197,62,0.15);
  transform: scale(1.08) rotate(-5deg);
}
.factor-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--gold-2);
  margin-bottom: 0.85rem;
}
.factor-card p { font-size: 0.9rem; color: var(--t2); line-height: 1.8; }

/* ── SESSIONS ────────────────────────────────────────── */
.sessions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 4rem;
}
.session-card {
  background: var(--g-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: all var(--dur-med) var(--ease);
}
.session-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-l);
  border-color: var(--border-h);
}
.session-img-wrap { position: relative; overflow: hidden; }
.session-img-wrap img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform var(--dur-slow) var(--ease);
}
.session-card:hover .session-img-wrap img { transform: scale(1.05); }
.session-img-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(4,14,34,0.95) 0%, transparent 100%);
  padding: 1.5rem 1.5rem 1rem;
}
.session-time-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  background: rgba(21,101,192,0.3);
  border: 1px solid rgba(21,101,192,0.5);
  border-radius: var(--r-full);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--blue-3);
  letter-spacing: 0.05em;
}
.session-img-overlay h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  margin-top: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.session-body { padding: 2rem; }
.session-vi-title {
  font-size: 0.9rem;
  color: var(--gold-2);
  font-style: italic;
  margin-bottom: 1rem;
  font-weight: 600;
}
.session-desc { font-size: 0.875rem; color: var(--t2); line-height: 1.8; margin-bottom: 1.5rem; }
.session-points { display: flex; flex-direction: column; gap: 0.65rem; }
.session-point {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--t2);
  line-height: 1.55;
}
.session-point::before {
  content: '▸';
  color: var(--gold-2);
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── TIMELINE / SCHEDULE ─────────────────────────────── */
/*
  Grid layout: [time 86px] [gap 12px] [dot 20px] [gap 16px] [body 1fr]
  Vertical line runs through the center of the dot column.
*/
.timeline-wrap {
  position: relative;
  max-width: 860px;
  margin: 3.5rem auto 0;
}
.timeline-wrap::before {
  content: '';
  position: absolute;
  /* center of dot column: 86px time + 12px gap + 10px (half of 20px dot col) */
  left: calc(86px + 12px + 10px);
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold-2) 0%, var(--blue-1) 100%);
}
.timeline-phase {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-left: calc(86px + 12px + 20px + 16px); /* align with body column */
}
.phase-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.4rem;
  background: rgba(21,101,192,0.1);
  border: 1px solid rgba(21,101,192,0.22);
  border-radius: var(--r-sm);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--blue-3);
}
.phase-label.phase-afternoon {
  background: rgba(245,197,62,0.08);
  border-color: rgba(245,197,62,0.2);
  color: var(--gold-2);
}
.tl-entry {
  display: grid;
  grid-template-columns: 86px 20px 1fr;
  column-gap: 0;
  padding: 0.85rem 0;
}
/* spacing between columns handled via padding, not gap, for precise line alignment */
.tl-time {
  padding-right: 12px;
  text-align: right;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--gold-2);
  line-height: 1.3;
  white-space: nowrap;
  padding-top: 0.1rem;
}
.tl-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--gold-2);
  border: 3px solid var(--bg-1);
  z-index: 2;
  box-shadow: 0 0 12px rgba(245,197,62,0.5);
  justify-self: center;
  align-self: start;
  margin-top: 0.12rem;
  transition: transform var(--dur-fast);
}
.tl-dot.blue { background: var(--blue-2); box-shadow: 0 0 12px rgba(30,136,229,0.5); }
.tl-entry:hover .tl-dot { transform: scale(1.3); }
.tl-body {
  padding-left: 16px;
}
.tl-body h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--t1);
  margin-bottom: 0.25rem;
  line-height: 1.4;
}
.tl-body p { font-size: 0.82rem; color: var(--t3); line-height: 1.55; }
.tl-entry.featured .tl-body {
  background: rgba(245,197,62,0.04);
  border: 1px solid rgba(245,197,62,0.12);
  padding: 0.9rem 1.25rem;
  border-radius: var(--r-md);
  margin-bottom: 0.5rem;
}
.tl-entry.featured .tl-body h4 { color: var(--gold-2); }

/* ── SPEAKERS ────────────────────────────────────────── */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1.5rem;
  margin-top: 4rem;
}
.speaker-card {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-2);
  transition: all var(--dur-med) var(--ease);
  cursor: pointer;
  group: '';
}
.speaker-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 24px 60px rgba(0,0,0,0.6);
  border-color: rgba(245,197,62,0.5);
}
.speaker-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
}
.speaker-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform var(--dur-slow) var(--ease);
}
.speaker-card:hover .speaker-img-wrap img { transform: scale(1.06); }
.speaker-gradient-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 40%,
    rgba(2,8,20,0.7) 70%,
    rgba(2,8,20,0.97) 100%
  );
}
.speaker-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1rem 1rem 1.25rem;
}
.speaker-badge {
  display: inline-block;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--r-full);
  margin-bottom: 0.4rem;
}
.badge-speaker  { background:rgba(245,197,62,0.15); color:var(--gold-2); border:1px solid rgba(245,197,62,0.3); }
.badge-moderator{ background:rgba(21,101,192,0.2);  color:var(--blue-3); border:1px solid rgba(21,101,192,0.35); }
.speaker-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 0.2rem;
}
.speaker-pos   { font-size: 0.72rem; color: var(--t3); line-height: 1.4; }
.speaker-org   { font-size: 0.76rem; color: var(--t2); font-weight: 600; margin-top: 0.15rem; }

/* Hover reveal more info */
.speaker-hover-panel {
  position: absolute;
  inset: 0;
  background: rgba(2,8,20,0.92);
  backdrop-filter: blur(4px);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
}
.speaker-card:hover .speaker-hover-panel { opacity: 1; }
.speaker-hover-panel h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--gold-2);
  margin-bottom: 0.5rem;
}
.speaker-hover-panel p {
  font-size: 0.8rem;
  color: var(--t2);
  line-height: 1.6;
}

/* ── WHY ATTEND ──────────────────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 4rem;
}
.why-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2rem 1.75rem;
  background: var(--g-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: all var(--dur-med) var(--ease);
}
.why-card:hover {
  border-color: rgba(245,197,62,0.3);
  transform: translateY(-5px);
  box-shadow: var(--shadow-s);
}
.why-icon {
  width: 56px; height: 56px;
  border-radius: var(--r-md);
  background: rgba(245,197,62,0.08);
  border: 1px solid rgba(245,197,62,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem;
  transition: all var(--dur-fast);
}
.why-card:hover .why-icon { background: rgba(245,197,62,0.15); transform: scale(1.1); }
.why-card h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.975rem;
  color: var(--t1);
  line-height: 1.35;
}
.why-card p { font-size: 0.875rem; color: var(--t2); line-height: 1.75; flex: 1; }

/* ── EXHIBITORS LOGOS ────────────────────────────────── */
.logos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 0.85rem;
  margin-top: 2.5rem;
}
.logo-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 72px;
  padding: 0.6rem 1rem;
  background: rgba(255,255,255,0.93);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--r-sm);
  transition: all var(--dur-fast);
  overflow: hidden;
}
.logo-cell:hover {
  background: #ffffff;
  border-color: var(--gold-2);
  box-shadow: 0 4px 20px rgba(245,197,62,0.2);
  transform: translateY(-2px);
}
.logo-cell img {
  max-width: 90%;
  max-height: 48px;
  object-fit: contain;
  filter: none;
  opacity: 1;
  transition: all var(--dur-fast);
}
.logo-cell:hover img {
  opacity: 1;
  filter: none;
}
.logo-cell-text {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--t3);
  text-align: center;
  transition: color var(--dur-fast);
}
.logo-cell:hover .logo-cell-text { color: var(--gold-2); }

/* ── VIDEO ───────────────────────────────────────────── */
.video-frame-wrap {
  max-width: 820px;
  margin: 3.5rem auto 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 40px 100px rgba(0,0,0,0.7);
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}
.video-frame-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
}

/* ── EVENT INFO ──────────────────────────────────────── */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 4rem;
}
.info-card {
  text-align: center;
  padding: 2.5rem 2rem;
  background: var(--g-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  transition: all var(--dur-med);
}
.info-card:hover { border-color: rgba(245,197,62,0.25); transform: translateY(-5px); }
.info-card .ic-icon { font-size: 2.8rem; margin-bottom: 1.25rem; }
.info-card .ic-label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin-bottom: 0.85rem;
}
.info-card .ic-value { font-size: 0.975rem; color: var(--t1); line-height: 1.65; font-weight: 500; }
.info-card .ic-note  { font-size: 0.78rem; color: var(--t3); margin-top: 0.5rem; }
.event-cta-center { text-align: center; margin-top: 4.5rem; }
.deadline-pill {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 1rem 2.5rem;
  background: rgba(245,197,62,0.06);
  border: 1px solid rgba(245,197,62,0.22);
  border-radius: var(--r-md);
  margin-bottom: 2.5rem;
}
.deadline-pill .dp-main { font-family:'Montserrat',sans-serif; font-weight:700; color:var(--gold-2); font-size:0.975rem; }
.deadline-pill .dp-note { font-size:0.78rem; color:var(--t3); }

/* ── CONTACT ─────────────────────────────────────────── */
.contact-card-wrap {
  max-width: 560px;
  margin: 3.5rem auto 0;
  background: var(--g-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 3rem;
  text-align: center;
}
.contact-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--g-blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.85rem;
  margin: 0 auto 1.25rem;
  box-shadow: var(--shadow-blue);
}
.contact-card-wrap h3 { font-family:'Montserrat',sans-serif; font-weight:800; font-size:1.3rem; margin-bottom:.3rem; }
.contact-role { font-size:.875rem; color:var(--t2); margin-bottom:2rem; }
.contact-links { display:flex; flex-direction:column; gap:1rem; margin-bottom:2rem; }
.contact-link {
  display:flex; align-items:center; justify-content:center; gap:.65rem;
  font-size:.95rem; color:var(--t2);
}
.contact-link .icon { color:var(--gold-2); font-size:1.05rem; }
.contact-link a { color:var(--gold-2); transition:color var(--dur-fast); }
.contact-link a:hover { color:var(--gold-1); }
.reg-note {
  margin-top:1.5rem;
  padding: 1rem 1.5rem;
  background: rgba(245,197,62,0.06);
  border: 1px solid rgba(245,197,62,0.2);
  border-radius: var(--r-sm);
}
.reg-note p { color:var(--gold-2); font-weight:600; font-size:.875rem; }
.reg-note span { display:block; font-size:.78rem; color:var(--t3); margin-top:.25rem; }

/* ── SPONSORS ────────────────────────────────────────── */
.sponsors-section {
  background: rgba(4,12,28,0.98);
  border-top:    1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3rem 0;
}
.sponsors-label {
  text-align: center;
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--t4);
  margin-bottom: 2.25rem;
}
.sponsors-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
}
.sponsor-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 44px;
}
.sponsor-logo img {
  max-height: 40px;
  max-width: 110px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.5;
  transition: opacity var(--dur-fast);
}
.sponsor-logo:hover img { opacity: 0.9; filter: none; }

/* ── FOOTER ──────────────────────────────────────────── */
.footer {
  background: var(--bg-0);
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}
.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 3rem;
  flex-wrap: wrap;
}
.footer-brand-col .fb-name {
  font-family:'Montserrat',sans-serif;
  font-weight:900; font-size:.95rem;
  background:var(--g-gold);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
  margin-bottom:.5rem;
}
.footer-brand-col p { font-size:.82rem; color:var(--t3); line-height:1.7; max-width:260px; }
.footer-links-col h4 {
  font-family:'Montserrat',sans-serif;
  font-weight:700; font-size:.78rem;
  letter-spacing:.12em; text-transform:uppercase;
  color:var(--t4); margin-bottom:1rem;
}
.footer-links-col ul { display:flex; flex-direction:column; gap:.55rem; }
.footer-links-col a { font-size:.85rem; color:var(--t3); transition:color var(--dur-fast); }
.footer-links-col a:hover { color:var(--gold-2); }
.footer-bottom {
  margin-top:2.5rem;
  padding-top:1.5rem;
  border-top:1px solid var(--border);
  text-align:center;
}
.footer-bottom p { font-size:.78rem; color:var(--t4); }
.footer-bottom a { color:var(--gold-2); }

/* ── ANIMATIONS ──────────────────────────────────────── */
[data-anim] {
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
[data-anim="up"]    { transform: translateY(40px); }
[data-anim="left"]  { transform: translateX(-40px); }
[data-anim="right"] { transform: translateX(40px); }
[data-anim="scale"] { transform: scale(0.9); }
[data-anim].in-view { opacity: 1 !important; transform: none !important; }

[data-delay="1"] { transition-delay: 0.1s; }
[data-delay="2"] { transition-delay: 0.2s; }
[data-delay="3"] { transition-delay: 0.3s; }
[data-delay="4"] { transition-delay: 0.4s; }
[data-delay="5"] { transition-delay: 0.5s; }
[data-delay="6"] { transition-delay: 0.6s; }

/* ── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 1100px) {
  .about-grid { grid-template-columns: 1fr; gap: 4rem; }
  .exh-grid   { grid-template-columns: 1fr; gap: 3.5rem; }
  .factors-grid { grid-template-columns: repeat(2,1fr); }
  .sessions-grid { grid-template-columns: 1fr; max-width: 640px; margin-left: auto; margin-right: auto; }
  .why-grid { grid-template-columns: repeat(2,1fr); }
  .info-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-menu    { display: none; }
  .nav-actions .btn { display: none; }
  .nav-hamburger { display: flex; }

  .stats-inner { grid-template-columns: repeat(2,1fr); }
  .stat-cell + .stat-cell::before { display: none; }
  .factors-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .speakers-grid { grid-template-columns: repeat(2,1fr); }
  .logos-grid { grid-template-columns: repeat(auto-fill, minmax(88px,1fr)); }
  .footer-inner { flex-direction: column; gap: 2rem; }

  .timeline-wrap::before { left: calc(54px + 8px + 8px); }
  .tl-entry { grid-template-columns: 54px 16px 1fr; }
  .tl-time { padding-right: 8px; font-size: 0.72rem; }
  .timeline-phase { padding-left: calc(54px + 8px + 16px + 10px); }
  .tl-body { padding-left: 10px; }

  .about-float-card { display: none; }
  .hero-title-main { font-size: clamp(3rem, 18vw, 5rem); }
}

@media (max-width: 480px) {
  .hero-meta-sep { display: none; }
  .hero-meta-bar { flex-direction: column; gap: 0.6rem; }
  .speakers-grid { grid-template-columns: repeat(2,1fr); gap: 1rem; }
  .logos-grid { grid-template-columns: repeat(3,1fr); }
  .exh-stats-row { grid-template-columns: repeat(3,1fr); }
  .section { padding: 4rem 0; }
}