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

:root {
  --bg-primary: #070714;
  --bg-secondary: #0d0d24;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 102, 241, 0.3);
  --accent-1: #6366f1;
  --accent-2: #06b6d4;
  --accent-3: #8b5cf6;
  --gradient-main: linear-gradient(135deg, #6366f1, #06b6d4);
  --gradient-purple: linear-gradient(135deg, #6366f1, #8b5cf6);
  --text-primary: #f0f0f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --nav-height: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  max-width: 100vw;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

#app {
  overflow-x: hidden;
}

/* ============ NAVBAR ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 clamp(1rem, 4vw, 3rem);
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(7, 7, 20, 0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-logo img {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
}

.nav-links {
  display: none;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-main);
  transition: var(--transition);
  border-radius: 1px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  display: none;
  padding: 8px 20px;
  background: var(--gradient-main);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  transition: var(--transition);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(7, 7, 20, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 999;
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.mobile-menu a:hover {
  color: var(--text-primary);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  max-width: 100vw;
  z-index: 1;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('./assets/images/bg-hero.png') center/cover no-repeat;
  opacity: 0.3;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(7, 7, 20, 0.5) 0%,
    rgba(7, 7, 20, 0.3) 50%,
    var(--bg-primary) 100%
  );
  z-index: 1;
}

/* ============ HERO CONTENT ============ */
.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 1.5rem;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent-2);
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
  font-size: clamp(2.2rem, 7vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}

.hero-title .gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 4px 24px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.45);
}

.btn-outline {
  border: 1px solid var(--border-hover);
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.06);
}

.btn-outline:hover {
  background: rgba(99, 102, 241, 0.12);
  border-color: var(--accent-1);
  transform: translateY(-2px);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  animation: float 3s ease-in-out infinite;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-1), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

@keyframes scroll-line {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* ============ SECTIONS COMMON ============ */
.section {
  padding: 80px clamp(1rem, 4vw, 3rem);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============ PRODUCTS ============ */
#products {
  background: var(--bg-secondary);
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.product-card:hover::before {
  opacity: 1;
}

.product-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
  color: var(--accent-1);
  overflow: hidden;
}

.product-icon-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
}

.product-card:nth-child(2) .product-icon { background: rgba(6, 182, 212, 0.1); }
.product-card:nth-child(3) .product-icon { background: rgba(139, 92, 246, 0.1); }
.product-card:nth-child(4) .product-icon { background: rgba(34, 197, 94, 0.1); }
.product-card:nth-child(5) .product-icon { background: rgba(59, 130, 246, 0.1); }
.product-card:nth-child(6) .product-icon { background: rgba(236, 72, 153, 0.1); }

.product-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.product-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============ DEMOS ============ */
.demo-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.demo-tab {
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  background: transparent;
}

.demo-tab:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.demo-tab.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
}

.video-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.video-placeholder {
  aspect-ratio: 16/9;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
  overflow: hidden;
  position: relative;
}

.video-placeholder:hover {
  border-color: var(--border-hover);
}

.video-placeholder video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.play-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.15);
  border: 2px solid rgba(99, 102, 241, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 1;
}

.video-placeholder:hover .play-icon {
  background: rgba(99, 102, 241, 0.25);
  transform: scale(1.1);
}

.video-placeholder span {
  font-size: 0.85rem;
  z-index: 1;
}

/* ============ SCENARIOS ============ */
#scenarios {
  background: var(--bg-secondary);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.scenario-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.scenario-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.scenario-card:nth-child(2) .scenario-icon { background: rgba(6, 182, 212, 0.08); }
.scenario-card:nth-child(3) .scenario-icon { background: rgba(139, 92, 246, 0.08); }
.scenario-card:nth-child(4) .scenario-icon { background: rgba(34, 197, 94, 0.08); }

.scenario-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.scenario-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============ STATS ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.stat-item:hover {
  border-color: var(--border-hover);
}

.stat-number {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 0.3rem;
}

.stat-suffix {
  font-size: 0.7em;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============ RESOURCES ============ */
#resources {
  background: var(--bg-secondary);
}

.resources-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.resource-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.resource-item:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.resource-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.resource-info {
  flex: 1;
  min-width: 0;
}

.resource-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.resource-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.resource-download {
  color: var(--accent-1);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
  flex-shrink: 0;
}

.resource-download:hover {
  color: var(--accent-2);
}

/* ============ CONTACT ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 700px;
  margin: 0 auto;
}

.qr-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
}

.qr-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.qr-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.qr-card img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  border-radius: var(--radius-md);
  margin: 0 auto;
  background: #fff;
  padding: 8px;
}

.qr-card p {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.qr-tip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 0.8rem;
  padding: 5px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-2);
  animation: qr-tip-pulse 2.5s ease-in-out infinite;
}

@keyframes qr-tip-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.25); }
  50% { box-shadow: 0 0 0 8px rgba(6, 182, 212, 0); }
}

/* ============ FOOTER ============ */
.footer {
  padding: 2.5rem clamp(1rem, 4vw, 3rem);
  border-top: 1px solid var(--border-color);
  text-align: center;
  overflow: hidden;
  z-index: 1;
  position: relative;
}

.footer p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============ ANIMATIONS ============ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }

/* ============ SVG ICONS ============ */
.icon-svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-svg-lg {
  width: 28px;
  height: 28px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 767px) {
  .section {
    padding: 60px 1rem;
  }

  .section-header {
    margin-bottom: 2.5rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .section-desc {
    font-size: 0.9rem;
  }

  .hero-content {
    padding: 0 1rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    margin-bottom: 2rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
  }

  .btn {
    padding: 12px 28px;
    font-size: 0.9rem;
    width: 80%;
    max-width: 280px;
    justify-content: center;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .product-card {
    padding: 1.2rem;
  }

  .product-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 0.8rem;
  }

  .product-card h3 {
    font-size: 0.95rem;
  }

  .product-card p {
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .demo-tab {
    padding: 6px 12px;
    font-size: 0.75rem;
  }

  .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .scenario-card {
    padding: 1.5rem 1rem;
  }

  .scenario-icon {
    width: 48px;
    height: 48px;
    font-size: 1.3rem;
    margin-bottom: 1rem;
  }

  .scenario-card h3 {
    font-size: 0.95rem;
  }

  .scenario-card p {
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .stats-grid {
    gap: 0.75rem;
  }

  .stat-item {
    padding: 1.2rem 0.5rem;
  }

  .resources-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .resource-item {
    padding: 1rem;
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }

  .resource-icon {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }

  .resource-info h4 {
    font-size: 0.85rem;
  }

  .resource-info p {
    font-size: 0.72rem;
  }

  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .qr-card {
    padding: 1.2rem;
  }

  .qr-card h3 {
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
  }

  .qr-card img {
    width: 140px;
    height: 140px;
  }

  .qr-card p {
    font-size: 0.75rem;
    margin-top: 0.6rem;
  }

  .qr-tip {
    font-size: 0.72rem;
    padding: 4px 10px;
    margin-top: 0.6rem;
  }

  .nav-logo img {
    height: 30px;
  }

  .nav-logo span {
    font-size: 1.1rem;
  }

  .bg-glow-1 {
    width: 300px;
    height: 300px;
    right: -150px;
    top: -100px;
  }

  .bg-glow-2 {
    width: 200px;
    height: 200px;
    left: -100px;
    bottom: -50px;
  }

  .footer {
    padding: 1.5rem 1rem;
  }
}

@media (min-width: 640px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .video-showcase {
    grid-template-columns: repeat(2, 1fr);
  }

  .resources-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .nav-cta {
    display: inline-flex;
  }

  .hamburger {
    display: none;
  }

  .section {
    padding: 100px clamp(1.5rem, 4vw, 3rem);
  }

  .footer {
    padding: 2rem 1.5rem;
  }

  .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .section {
    padding: 120px clamp(2rem, 4vw, 3rem);
  }

  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .scenarios-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .video-showcase {
    grid-template-columns: 1fr;
  }

  .resources-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============ PARTICLE CANVAS ============ */
.global-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

#particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ============ GLOBAL BACKGROUND EFFECTS ============ */
.section-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.08;
  pointer-events: none;
}

.bg-glow-1 {
  width: 600px;
  height: 600px;
  background: var(--accent-1);
  top: -200px;
  right: -200px;
}

.bg-glow-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-2);
  bottom: -100px;
  left: -100px;
}

/* ============ CUSTOM SCROLLBAR ============ */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.3);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(99, 102, 241, 0.5);
}