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

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #8b5cf6;
  --accent: #ec4899;
  --dark: #0f172a;
  --gray-900: #1e293b;
  --gray-800: #334155;
  --gray-700: #475569;
  --gray-600: #64748b;
  --gray-500: #94a3b8;
  --gray-400: #cbd5e1;
  --gray-300: #e2e8f0;
  --gray-200: #f1f5f9;
  --gray-100: #f8fafc;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', -apple-system, sans-serif;
  line-height: 1.6;
  color: var(--gray-700);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  overflow-x: hidden;
  position: relative;
}

.floating-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.float-circle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent);
  animation: floatAround 20s ease-in-out infinite;
}

.circle-1 {
  width: 400px;
  height: 400px;
  top: -200px;
  left: -200px;
  animation-delay: 0s;
}

.circle-2 {
  width: 600px;
  height: 600px;
  top: 50%;
  right: -300px;
  animation-delay: 5s;
}

.circle-3 {
  width: 500px;
  height: 500px;
  bottom: -250px;
  left: 30%;
  animation-delay: 10s;
}

@keyframes floatAround {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(50px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-30px, 30px) scale(0.9);
  }
}

.wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 
    0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06),
    0 0 0 1px rgba(0, 0, 0, 0.05);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  perspective: 1000px;
}

.logo-cube {
  width: 40px;
  height: 40px;
  position: relative;
  transform-style: preserve-3d;
  animation: rotateCube 10s infinite linear;
}

@keyframes rotateCube {
  from {
    transform: rotateX(0deg) rotateY(0deg);
  }
  to {
    transform: rotateX(360deg) rotateY(360deg);
  }
}

.cube-face {
  position: absolute;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: 2px solid rgba(255, 255, 255, 0.3);
  opacity: 0.9;
}

.front  { transform: translateZ(20px); }
.back   { transform: translateZ(-20px) rotateY(180deg); }
.left   { transform: translateX(-20px) rotateY(-90deg); }
.right  { transform: translateX(20px) rotateY(90deg); }
.top    { transform: translateY(-20px) rotateX(90deg); }
.bottom { transform: translateY(20px) rotateX(-90deg); }

.brand-name {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  position: relative;
  transition: all 0.3s;
}

.nav-links a::before {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: translateX(-50%);
  transition: width 0.3s;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

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

.nav-links a:hover::before {
  width: 100%;
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-burger span {
  width: 24px;
  height: 3px;
  background: var(--gray-700);
  border-radius: 3px;
  transition: all 0.3s;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.nav-burger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--primary);
}

.nav-burger.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.nav-burger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--primary);
}

.hero {
  padding: 6rem 0 10rem;
  position: relative;
  overflow: hidden;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  animation: slideUp 0.8s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.author-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  width: fit-content;
}

.author-avatar {
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.author-name {
  font-size: 1rem;
  font-weight: 700;
  color: white;
}

.author-title {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.85);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
  text-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.15),
    0 8px 24px rgba(0, 0, 0, 0.1);
}

.hero-text {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.8;
  margin-bottom: 2.5rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.btn-3d {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2.5rem;
  border-radius: 14px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s;
  position: relative;
  border: none;
  cursor: pointer;
  box-shadow: 
    0 10px 20px -5px rgba(0, 0, 0, 0.2),
    0 4px 8px -2px rgba(0, 0, 0, 0.1),
    inset 0 -3px 6px rgba(0, 0, 0, 0.1);
}

.btn-primary {
  background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
  color: var(--primary);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 
    0 15px 30px -5px rgba(0, 0, 0, 0.25),
    0 8px 16px -4px rgba(0, 0, 0, 0.15),
    inset 0 -3px 6px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}

.btn-large {
  padding: 1.25rem 3rem;
  font-size: 1.125rem;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 1.25rem 1.75rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 8px 16px -4px rgba(0, 0, 0, 0.1),
    inset 0 1px 2px rgba(255, 255, 255, 0.1);
}

.stat-number {
  font-family: 'Fira Code', monospace;
  font-size: 2rem;
  font-weight: 700;
  color: white;
  display: block;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
}

.hero-visual {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brain-illustration {
  position: relative;
  width: 320px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px 24px;
  margin: 0 auto;
}

.brain-section {
  --base-x: 0px;
  --base-y: 0px;
  width: 140px;
  height: 140px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 
    0 10px 30px rgba(0, 0, 0, 0.2),
    inset 0 2px 4px rgba(255, 255, 255, 0.1);
  transform: translateX(var(--base-x)) translateY(var(--base-y));
  animation: brainTileFloat 6s ease-in-out infinite;
}

.brain-section-icon {
  width: 82px;
  height: 82px;
  object-fit: contain;
  filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.2));
}

.section-1 {
  --base-x: -20px;
  --base-y: -6px;
  animation-delay: 0s;
}

.section-2 {
  --base-x: 20px;
  --base-y: -6px;
  animation-delay: 1s;
}

.section-3 {
  --base-x: 0px;
  --base-y: 14px;
  animation-delay: 2s;
}

@keyframes brainTileFloat {
  0%, 100% {
    transform: translateX(var(--base-x)) translateY(var(--base-y));
  }
  50% {
    transform: translateX(var(--base-x)) translateY(calc(var(--base-y) - 10px));
  }
}

.wave-divider {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 100px;
  overflow: hidden;
  line-height: 0;
}

.wave-divider svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 100px;
}

.science-section {
  padding: 8rem 0;
  background: white;
  position: relative;
}

.content-grid {
  display: grid;
  gap: 2.5rem;
}

.content-card {
  background: white;
  padding: 3rem;
  border-radius: 24px;
  box-shadow: 
    0 10px 25px -5px rgba(0, 0, 0, 0.1),
    0 4px 10px -2px rgba(0, 0, 0, 0.05),
    0 0 0 1px rgba(0, 0, 0, 0.05);
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}

.content-card:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.25),
    0 10px 20px -5px rgba(0, 0, 0, 0.15);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
  box-shadow: 
    0 8px 20px rgba(99, 102, 241, 0.4),
    inset 0 -2px 6px rgba(0, 0, 0, 0.1);
}

.card-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.3;
}

.card-text {
  color: var(--gray-600);
  line-height: 1.85;
  font-size: 1.0625rem;
  margin-bottom: 1.5rem;
}

.stat-inline {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 1.25rem;
  background: var(--gray-100);
  border-radius: 12px;
  border: 1px solid var(--gray-200);
}

.stat-value {
  font-family: 'Fira Code', monospace;
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--gray-600);
  font-weight: 600;
}

.features {
  padding: 8rem 0;
  background: white;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-badge {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  box-shadow: 
    0 4px 12px rgba(99, 102, 241, 0.3),
    0 2px 4px rgba(99, 102, 241, 0.2);
}

.section-badge.accent {
  background: linear-gradient(135deg, var(--accent), #f97316);
  box-shadow: 
    0 4px 12px rgba(236, 72, 153, 0.3),
    0 2px 4px rgba(236, 72, 153, 0.2);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--dark);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.feature-card {
  background: white;
  padding: 2.5rem;
  border-radius: 24px;
  position: relative;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 
    0 10px 25px -5px rgba(0, 0, 0, 0.1),
    0 4px 10px -2px rgba(0, 0, 0, 0.05),
    0 0 0 1px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.card-shine {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.3) 50%, transparent 70%);
  transform: rotate(45deg);
  transition: all 0.6s;
  opacity: 0;
}

.feature-card:hover .card-shine {
  opacity: 1;
  animation: shine 1.5s;
}

@keyframes shine {
  0% {
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
  }
  100% {
    transform: translateX(100%) translateY(100%) rotate(45deg);
  }
}

.feature-card:hover {
  transform: translateY(-12px);
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.25),
    0 10px 20px -5px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(99, 102, 241, 0.1);
}

.feature-icon-wrap {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 1.5rem;
}

.icon-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 20px;
  box-shadow: 
    0 8px 16px -4px rgba(99, 102, 241, 0.4),
    inset 0 -2px 4px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  position: relative;
  z-index: 1;
  color: white;
  display: block;
  margin: 20px;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
  line-height: 1.3;
}

.feature-desc {
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.feature-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.tag {
  padding: 0.375rem 0.875rem;
  background: var(--gray-100);
  color: var(--gray-700);
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.feature-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9375rem;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
}

.feature-link:hover {
  transform: translateX(4px);
}

.divider-floating {
  padding: 4rem 0;
  display: flex;
  justify-content: center;
}

.float-orbs {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.orb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 
    0 4px 12px rgba(99, 102, 241, 0.4),
    0 0 20px rgba(99, 102, 241, 0.2);
  animation: orbPulse 2s ease-in-out infinite;
}

.orb-2 {
  animation-delay: 0.4s;
  width: 16px;
  height: 16px;
}

.orb-3 {
  animation-delay: 0.8s;
}

@keyframes orbPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.3);
    opacity: 1;
  }
}

.benefits-section {
  padding: 8rem 0 1rem;
  background: var(--gray-100);
  position: relative;
}

.benefits-layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 4rem;
  align-items: start;
}

.benefits-sidebar {
  position: sticky;
  top: 120px;
}

.benefits-intro {
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.quote-box {
  padding: 2rem;
  background: white;
  border-radius: 16px;
  border: 2px solid var(--gray-200);
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.08),
    inset 0 1px 2px rgba(255, 255, 255, 0.5);
  position: relative;
}

.quote-mark {
  font-size: 4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--primary);
  opacity: 0.2;
  position: absolute;
  top: 10px;
  left: 20px;
}

.quote-text {
  font-size: 1.0625rem;
  font-style: italic;
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.quote-author {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-600);
}

.benefits-content {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.benefit-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3rem;
  padding: 3rem;
  background: white;
  border-radius: 24px;
  box-shadow: 
    0 10px 25px -5px rgba(0, 0, 0, 0.1),
    0 4px 10px -2px rgba(0, 0, 0, 0.05);
  transition: all 0.4s;
  border: 2px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.benefit-item:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.25),
    0 10px 20px -5px rgba(0, 0, 0, 0.15);
  border-color: var(--primary);
}

.benefit-number {
  font-family: 'Fira Code', monospace;
  font-size: 4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.4;
  line-height: 1;
}

.benefit-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
  line-height: 1.3;
}

.benefit-text {
  color: var(--gray-600);
  line-height: 1.85;
  font-size: 1.0625rem;
  margin-bottom: 1.5rem;
}

.benefit-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.benefit-list li {
  padding-left: 2rem;
  color: var(--gray-700);
  font-weight: 500;
  position: relative;
}

.benefit-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.benefits-visual {
  display: flex;
  justify-content: center;
  padding: 2rem 0;
}

.brain-chart {
  position: relative;
  width: 220px;
  height: 220px;
}

.chart-ring {
  position: absolute;
  border-radius: 50%;
  border: 3px solid;
  animation: ringRotate 10s linear infinite;
}

.ring-1 {
  inset: 0;
  border-color: var(--primary);
  box-shadow: 
    0 0 20px rgba(99, 102, 241, 0.3),
    inset 0 0 20px rgba(99, 102, 241, 0.1);
}

.ring-2 {
  inset: 20px;
  border-color: var(--secondary);
  animation-delay: 2s;
  animation-direction: reverse;
  box-shadow: 
    0 0 20px rgba(139, 92, 246, 0.3),
    inset 0 0 20px rgba(139, 92, 246, 0.1);
}

.ring-3 {
  inset: 40px;
  border-color: var(--accent);
  animation-delay: 4s;
  box-shadow: 
    0 0 20px rgba(236, 72, 153, 0.3),
    inset 0 0 20px rgba(236, 72, 153, 0.1);
}

@keyframes ringRotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.chart-center {
  position: absolute;
  inset: 60px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 
    0 10px 25px -5px rgba(0, 0, 0, 0.2),
    inset 0 2px 4px rgba(255, 255, 255, 0.5);
}

.chart-icon {
  font-size: 3rem;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.benefit-card {
  background: white;
  padding: 2.5rem;
  padding-left: 5rem;
  border-radius: 20px;
  position: relative;
  transition: all 0.4s;
  box-shadow: 
    0 4px 12px -2px rgba(0, 0, 0, 0.08),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border-left: 4px solid transparent;
}

.benefit-card:hover {
  transform: translateX(12px);
  box-shadow: 
    0 20px 40px -10px rgba(0, 0, 0, 0.15),
    0 10px 20px -5px rgba(0, 0, 0, 0.1);
  border-left-color: var(--primary);
}

.benefit-number {
  position: absolute;
  left: 1.5rem;
  top: 2rem;
  font-family: 'Fira Code', monospace;
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.2;
  line-height: 1;
}

.benefit-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.benefit-text {
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.benefit-progress {
  height: 6px;
  background: var(--gray-200);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 10px;
  transition: width 1s ease;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

.divider-line-3d {
  padding: 4rem 0;
  display: flex;
  justify-content: center;
}

.line-3d {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.line-segment {
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.line-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 
    0 4px 12px rgba(99, 102, 241, 0.5),
    0 0 20px rgba(99, 102, 241, 0.3),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2);
  animation: dotSpin 3s linear infinite;
}

@keyframes dotSpin {
  from {
    transform: rotate(0deg) scale(1);
  }
  50% {
    transform: rotate(180deg) scale(1.2);
  }
  to {
    transform: rotate(360deg) scale(1);
  }
}

.research-section {
  padding: 8rem 0;
  background: white;
}

.research-content {
  max-width: 900px;
  margin: 0 auto;
}

.research-intro {
  font-size: 1.0625rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 3rem;
  text-align: center;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.research-card {
  position: relative;
  overflow: hidden;
  padding: 2.5rem;
  border-radius: 20px;
  border: 2px solid var(--gray-200);
  transition: all 0.4s;
  color: var(--gray-900);
}

.research-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.45;
  transition: opacity 0.4s;
}

.research-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.3));
  mix-blend-mode: lighten;
}

.research-card > * {
  position: relative;
  z-index: 1;
}

.research-card:nth-child(1)::before {
  background-image: url('images/card-1.webp');
}

.research-card:nth-child(2)::before {
  background-image: url('images/card-2.webp');
}

.research-card:nth-child(3)::before {
  background-image: url('images/card-3.webp');
}

.research-card:nth-child(4)::before {
  background-image: url('images/card-4.webp');
}

.research-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 
    0 20px 40px -10px rgba(0, 0, 0, 0.15),
    0 10px 20px -5px rgba(0, 0, 0, 0.1);
}

.research-card:hover::before {
  opacity: 0.6;
}

.research-icon {
  font-size: 3rem;
  margin-bottom: 1.25rem;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.research-study {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.research-finding {
  color: black;
  line-height: 1.75;
}

.conclusion-box {
  padding: 3rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.08));
  border-radius: 24px;
  border: 2px solid rgba(99, 102, 241, 0.3);
  box-shadow: 
    0 10px 30px -5px rgba(99, 102, 241, 0.2),
    inset 0 2px 4px rgba(255, 255, 255, 0.5);
  position: relative;
}

.conclusion-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.conclusion-text {
  color: var(--gray-600);
  line-height: 1.85;
  font-size: 1.0625rem;
  margin-bottom: 1.5rem;
}

.conclusion-text:last-child {
  margin-bottom: 0;
}

.legal-main {
  background: white;
  padding: 6rem 0 8rem;
}

.legal-header {
  text-align: center;
  margin-bottom: 4rem;
}

.legal-title {
  font-size: clamp(2.25rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.legal-updated {
  font-size: 0.9375rem;
  color: var(--gray-600);
  font-weight: 600;
}

.legal-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.legal-section {
  background: var(--gray-100);
  padding: 2.5rem;
  border-radius: 20px;
  border: 1px solid var(--gray-200);
  box-shadow: 
    0 12px 24px -10px rgba(15, 23, 42, 0.1),
    inset 0 1px 2px rgba(255, 255, 255, 0.6);
}

.legal-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
}

.legal-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 0.75rem;
}

.legal-section p,
.legal-section li {
  color: var(--gray-600);
  line-height: 1.8;
  font-size: 1rem;
}

.legal-section ul {
  margin: 1rem 0 0 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.legal-section strong {
  color: var(--primary);
}

.cta-section {
  padding: 8rem 0;
  background: white;
}

.cta-box {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 32px;
  padding: 4rem;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  align-items: center;
  box-shadow: 
    0 30px 60px -15px rgba(99, 102, 241, 0.4),
    0 20px 40px -10px rgba(99, 102, 241, 0.3),
    inset 0 1px 2px rgba(255, 255, 255, 0.1);
}

.cta-glow {
  position: absolute;
  inset: -100px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2), transparent 70%);
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% {
    opacity: 0.5;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.1);
  }
}

.cta-title {
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  color: white;
  margin-bottom: 1.25rem;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.cta-text {
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.8;
  margin-bottom: 2rem;
  font-size: 1.0625rem;
}

.cta-features {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: white;
  font-weight: 600;
}

.cta-feature svg {
  flex-shrink: 0;
}

.cta-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.trophy-3d {
  position: relative;
  width: 180px;
  height: 200px;
  animation: trophyFloat 3s ease-in-out infinite;
}

@keyframes trophyFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

.trophy-base {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 30px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.15));
  border-radius: 10px;
  box-shadow: 
    0 10px 30px rgba(0, 0, 0, 0.3),
    inset 0 2px 4px rgba(255, 255, 255, 0.2);
}

.trophy-cup {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 140px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.2));
  border-radius: 50px 50px 20px 20px;
  box-shadow: 
    0 15px 40px rgba(0, 0, 0, 0.3),
    inset 0 4px 8px rgba(255, 255, 255, 0.3),
    inset 0 -4px 8px rgba(0, 0, 0, 0.1);
}

.trophy-shine {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 80px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), transparent);
  border-radius: 50%;
  filter: blur(10px);
}

.footer {
  padding: 3rem 0;
  background: var(--dark);
  color: var(--gray-500);
  text-align: center;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  text-align: left;
}

.footer-text {
  font-size: 0.9375rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-contact {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-400);
}

@media (max-width: 968px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-visual {
    height: 400px;
  }

  .brain-illustration {
    width: 300px;
    height: 300px;
  }

  .brain-section {
    width: 120px;
    height: 120px;
  }

  .benefits-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .benefits-sidebar {
    position: relative;
    top: 0;
  }

  .benefit-item {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .cta-box {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 3rem;
  }

  .cta-visual {
    order: -1;
  }
}

@media (max-width: 768px) {
  .wrapper {
    padding: 0 1.5rem;
  }

  .nav-burger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: white;
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
    transition: right 0.3s;
    gap: 0;
    z-index: 999;
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links a {
    width: 100%;
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray-200);
  }

  .hero {
    padding: 4rem 0 8rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn-3d {
    width: 100%;
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .benefit-item {
    padding: 2rem;
  }

  .benefit-number {
    font-size: 3rem;
  }

  .content-card {
    padding: 2rem;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }

  .research-card {
    padding: 2rem;
  }

  .conclusion-box {
    padding: 2rem;
  }

  .cta-box {
    padding: 2rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  .legal-main {
    padding: 4rem 0 6rem;
  }

  .legal-section {
    padding: 1.75rem;
  }
}