/* ============================================================
   Bharat AI Expo 2026 — Main Stylesheet
   Inspired by impact.indiaai.gov.in
   Design System: Navy + Indigo + Orange + Amber
   ============================================================ */

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

:root {
  --navy:    #0D0E2C;
  --indigo:  #1A1B4B;
  --purple:  #2D1B69;
  --orange:  #F97316;
  --amber:   #FBBF24;
  --blue:    #3B82F6;
  --cyan:    #06B6D4;
  --white:   #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100:#F1F5F9;
  --gray-200:#E2E8F0;
  --gray-400:#94A3B8;
  --gray-600:#475569;
  --gray-800:#1E293B;
  --text-dark:#0F172A;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--white);
  color: var(--text-dark);
  overflow-x: hidden;
}

/* ── TICKER ── */
.ticker-wrap {
  background: var(--orange);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  overflow: hidden;
  white-space: nowrap;
  padding: 8px 0;
}
.ticker-inner {
  display: inline-block;
  animation: ticker 28s linear infinite;
}
.ticker-inner span { padding: 0 60px; }
@keyframes ticker {
  from { transform: translateX(100vw); }
  to   { transform: translateX(-100%); }
}

/* ── NAVBAR ── */
nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 14, 44, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-chakra { width: 44px; height: 44px; }
.logo-text { color: #fff; }
.logo-text strong {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.logo-text span {
  font-size: 0.65rem;
  color: var(--amber);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}
.nav-links a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.2s;
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-cta {
  background: var(--orange) !important;
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 8px !important;
  font-weight: 700 !important;
}
.nav-cta:hover { background: #ea6500 !important; }

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s;
}

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--navy);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 80% 40%, rgba(45,27,105,0.7) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 20% 70%, rgba(6,182,212,0.15) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 60% 80%, rgba(249,115,22,0.12) 0%, transparent 50%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: rgba(59,130,246,0.15);
  top: -100px; right: -100px;
  animation-delay: 0s;
}
.orb-2 {
  width: 300px; height: 300px;
  background: rgba(249,115,22,0.12);
  bottom: 100px; left: 100px;
  animation-delay: 3s;
}
@keyframes float {
  0%, 100% { transform: translateY(0px) scale(1); }
  50%       { transform: translateY(-30px) scale(1.05); }
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(249,115,22,0.15);
  border: 1px solid rgba(249,115,22,0.4);
  color: var(--amber);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  background: var(--orange);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.4); }
}
.hero-title {
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.hero-title .highlight {
  background: linear-gradient(135deg, var(--orange) 0%, var(--amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-year {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 300;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.15em;
  margin-bottom: 28px;
}
.hero-tagline {
  font-family: 'Noto Sans Devanagari', sans-serif;
  font-size: 1rem;
  color: var(--amber);
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 520px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 40px;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  font-weight: 500;
}
.hero-meta-item .icon {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}
.hero-meta-item .meta-lbl {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--orange);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 10px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.02em;
}
.btn-primary:hover {
  background: #ea6500;
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(249,115,22,0.35);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.2);
  cursor: pointer;
  transition: all 0.2s;
}
.btn-secondary:hover { background: rgba(255,255,255,0.15); transform: translateY(-1px); }

/* ── CHAKRA VISUAL ── */
.hero-right {
  display: flex;
  justify-content: center;
  align-items: center;
}
.chakra-visual {
  position: relative;
  width: 420px;
  height: 420px;
}
.chakra-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.08);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: spin-slow 30s linear infinite;
}
.chakra-ring:nth-child(2) { animation-direction: reverse; animation-duration: 20s; }
.chakra-ring-1 { width: 380px; height: 380px; border-color: rgba(249,115,22,0.2); }
.chakra-ring-2 { width: 300px; height: 300px; border-color: rgba(59,130,246,0.2); border-style: dashed; }
.chakra-ring-3 { width: 220px; height: 220px; border-color: rgba(251,191,36,0.25); }
@keyframes spin-slow { to { transform: translate(-50%, -50%) rotate(360deg); } }
.chakra-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 140px; height: 140px;
  background: linear-gradient(135deg, var(--purple), var(--indigo));
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(59,130,246,0.3), 0 0 120px rgba(249,115,22,0.15);
}
.chakra-svg { width: 80px; height: 80px; opacity: 0.9; }

/* ── STAT CARDS ── */
.stat-card {
  position: absolute;
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 12px 18px;
  color: #fff;
  animation: float-card 6s ease-in-out infinite;
}
.stat-card .num {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--orange), var(--amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-card .lbl { font-size: 0.72rem; color: rgba(255,255,255,0.65); font-weight: 500; margin-top: 2px; }
.stat-card-1 { top: 30px; left: -20px; animation-delay: 0s; }
.stat-card-2 { top: 30px; right: -20px; animation-delay: 2s; }
.stat-card-3 { bottom: 50px; left: 10px; animation-delay: 4s; }
.stat-card-4 { bottom: 50px; right: 10px; animation-delay: 1s; }
@keyframes float-card {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

/* ── COUNTDOWN ── */
.countdown-strip { background: var(--gray-800); padding: 48px 24px; }
.countdown-inner { max-width: 900px; margin: 0 auto; text-align: center; }
.countdown-inner h3 {
  color: var(--amber);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.countdown-grid { display: flex; justify-content: center; gap: 24px; }
.countdown-item { text-align: center; min-width: 90px; }
.countdown-num {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #fff, rgba(255,255,255,0.7));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.countdown-lbl {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange);
  margin-top: 6px;
}
.countdown-sep {
  font-size: 3rem;
  color: rgba(255,255,255,0.2);
  font-weight: 300;
  padding-top: 8px;
}

/* ── PARTNERS STRIP ── */
.partners-strip {
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  padding: 24px 0;
  overflow: hidden;
}
.partners-label {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-400);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.partners-scroll {
  display: flex;
  gap: 48px;
  animation: scroll-left 20s linear infinite;
  width: max-content;
}
.partner-item {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gray-400);
  white-space: nowrap;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
@keyframes scroll-left {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── SECTION SHARED ── */
section { padding: 100px 24px; }
.container { max-width: 1280px; margin: 0 auto; }
.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-title .accent      { color: var(--orange); }
.section-title .accent-blue { color: var(--blue); }
.section-body {
  font-size: 1.05rem;
  color: var(--gray-600);
  line-height: 1.75;
  max-width: 600px;
}

/* ── ABOUT ── */
.about-section { background: var(--white); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-image-main {
  width: 100%;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--indigo), var(--purple));
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-image-overlay { text-align: center; color: white; padding: 40px; }
.about-image-overlay .big-num {
  font-size: 5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--orange), var(--amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.about-image-overlay p { font-size: 1.1rem; font-weight: 600; opacity: 0.9; }
.about-badge-strip { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.about-badge {
  background: var(--gray-100);
  color: var(--gray-600);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--gray-200);
}
.about-right .section-body { max-width: 100%; margin-bottom: 32px; }
.pillars-list { display: flex; flex-direction: column; gap: 16px; }
.pillar-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--gray-200);
  transition: all 0.2s;
}
.pillar-item:hover { border-color: var(--orange); box-shadow: 0 4px 20px rgba(249,115,22,0.08); }
.pillar-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(249,115,22,0.12), rgba(251,191,36,0.08));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.pillar-content h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; color: var(--text-dark); }
.pillar-content p  { font-size: 0.85rem; color: var(--gray-600); line-height: 1.5; }

/* ── THREE PILLARS ── */
.sutras-section { background: var(--navy); position: relative; overflow: hidden; }
.sutras-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(45,27,105,0.6) 0%, transparent 70%);
}
.sutras-section .section-label { color: var(--amber); }
.sutras-section .section-title { color: #fff; }
.sutras-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-top: 48px; }
.sutra-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 40px 32px;
  text-align: center;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.sutra-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--amber));
  transform: scaleX(0);
  transition: transform 0.3s;
}
.sutra-card:hover { background: rgba(255,255,255,0.09); transform: translateY(-4px); }
.sutra-card:hover::before { transform: scaleX(1); }
.sutra-icon {
  width: 72px; height: 72px;
  background: rgba(249,115,22,0.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  margin: 0 auto 24px;
  border: 1px solid rgba(249,115,22,0.25);
}
.sutra-card h3 { font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.sutra-card p  { font-size: 0.9rem; color: rgba(255,255,255,0.65); line-height: 1.7; }

/* ── SECTORS ── */
.sectors-section { background: var(--gray-50); }
.sectors-header { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 16px; }
.sectors-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 48px; }
.sector-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 28px 24px;
  transition: all 0.25s;
  cursor: default;
}
.sector-card:hover { border-color: var(--orange); box-shadow: 0 8px 40px rgba(249,115,22,0.1); transform: translateY(-3px); }
.sector-emoji { font-size: 2.4rem; margin-bottom: 16px; display: block; }
.sector-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; color: var(--text-dark); }
.sector-card p  { font-size: 0.85rem; color: var(--gray-600); line-height: 1.6; }

/* ── HIGHLIGHTS ── */
.highlights-section { background: var(--white); }
.highlights-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; margin-top: 48px; }
.highlight-card {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: stretch;
  transition: all 0.2s;
}
.highlight-card:hover { box-shadow: 0 12px 50px rgba(0,0,0,0.1); transform: translateY(-2px); }
.highlight-accent {
  width: 6px; flex-shrink: 0;
  background: linear-gradient(180deg, var(--orange), var(--amber));
}
.highlight-body { padding: 28px 24px; flex: 1; }
.highlight-icon { font-size: 1.8rem; margin-bottom: 14px; display: block; }
.highlight-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; color: var(--text-dark); }
.highlight-body p  { font-size: 0.88rem; color: var(--gray-600); line-height: 1.65; }
.highlight-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--orange);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: gap 0.2s;
}
.highlight-link:hover { gap: 10px; }

/* ── SPEAKERS ── */
.speakers-section { background: var(--gray-50); }
.speakers-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; margin-top: 48px; }
.speaker-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all 0.25s;
  text-align: center;
}
.speaker-card:hover { box-shadow: 0 10px 40px rgba(0,0,0,0.1); transform: translateY(-3px); }
.speaker-avatar {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--indigo), var(--purple));
  position: relative;
  overflow: hidden;
}
.avatar-circle {
  width: 80px; height: 80px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -60%);
  border: 3px solid rgba(255,255,255,0.3);
  font-size: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.speaker-info { padding: 20px 16px; }
.speaker-info h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; }
.speaker-info .role { font-size: 0.78rem; color: var(--orange); font-weight: 600; margin-bottom: 4px; }
.speaker-info .org  { font-size: 0.78rem; color: var(--gray-400); }

/* ── WHY EXHIBIT ── */
.exhibit-section { background: var(--gray-800); padding: 80px 24px; }
.exhibit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.exhibit-checklist { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.exhibit-checklist li {
  display: flex; align-items: center; gap: 12px;
  color: rgba(255,255,255,0.85); font-size: 0.95rem;
}
.check-icon {
  width: 28px; height: 28px;
  background: var(--orange);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; flex-shrink: 0;
}
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-box {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 28px 20px;
  text-align: center;
}
.stat-box .big {
  font-size: 2.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--orange), var(--amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-box .lbl { color: rgba(255,255,255,0.65); font-size: 0.85rem; margin-top: 6px; }

/* ── REGISTER CTA ── */
.register-section {
  background: linear-gradient(135deg, var(--navy) 0%, var(--purple) 60%, var(--indigo) 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 100px 24px;
}
.register-section::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}
.register-inner { position: relative; z-index: 2; max-width: 700px; margin: 0 auto; }
.register-section .section-label { color: var(--amber); }
.register-section .section-title { color: #fff; }
.register-section .section-body { color: rgba(255,255,255,0.7); max-width: 100%; margin: 0 auto 40px; }
.register-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── FOOTER ── */
footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.7);
  padding: 64px 24px 32px;
}
.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { font-size: 0.85rem; line-height: 1.7; margin-top: 16px; color: rgba(255,255,255,0.55); max-width: 280px; }
.footer-socials { display: flex; gap: 10px; margin-top: 20px; }
.social-btn {
  width: 38px; height: 38px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  text-decoration: none;
  color: rgba(255,255,255,0.7);
  transition: all 0.2s;
}
.social-btn:hover { background: var(--orange); color: #fff; }
.footer-col h5 {
  color: #fff; font-size: 0.85rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 16px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--orange); }
.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom a { color: var(--orange); text-decoration: none; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .hero-content    { grid-template-columns: 1fr; text-align: center; }
  .hero-right      { display: none; }
  .hero-actions    { justify-content: center; }
  .hero-meta       { justify-content: center; }
  .about-grid      { grid-template-columns: 1fr; }
  .exhibit-grid    { grid-template-columns: 1fr; }
  .footer-grid     { grid-template-columns: 1fr 1fr; }
  .speakers-grid   { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  section          { padding: 64px 20px; }
  .nav-links       { display: none; }
  .nav-toggle      { display: flex; }
  .nav-links.open  {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: rgba(13,14,44,0.98);
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    gap: 4px;
  }
  .sutras-grid     { grid-template-columns: 1fr; }
  .sectors-grid    { grid-template-columns: 1fr 1fr; }
  .highlights-grid { grid-template-columns: 1fr; }
  .speakers-grid   { grid-template-columns: repeat(2, 1fr); }
  .footer-grid     { grid-template-columns: 1fr; }
  .countdown-num   { font-size: 2.5rem; }
}
@media (max-width: 480px) {
  .sectors-grid   { grid-template-columns: 1fr; }
  .speakers-grid  { grid-template-columns: 1fr 1fr; }
  .stats-grid     { grid-template-columns: 1fr 1fr; }
  .countdown-grid { gap: 12px; }
  .countdown-item { min-width: 60px; }
  .countdown-num  { font-size: 2rem; }
  .exhibit-grid   { grid-template-columns: 1fr; }
}