/* Psychological Design Variables */
:root {
  --primary: #00c8ff;
  --secondary: #7b2dff;
  --accent: #ff2d7b;
  --dark: #0a0e17;
  --darker: #05080f;
  --light: #f0f5ff;
  --soft-gray: #8a9bb8;
  --text-light: #ffffff;
  --text-muted: #b0b0b0;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --membrane-medium: rgba(123, 45, 255, 0.3);
  --glow: 0 0 20px rgba(0, 200, 255, 0.3);
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 12px 48px rgba(0, 0, 0, 0.15);
  --gradient-primary: linear-gradient(135deg, #00c8ff 0%, #7b2dff 100%);
  --gradient-dark: linear-gradient(135deg, #05080f 0%, #0a0e17 100%);
}

/* Calming Background Layers */
.particle-network {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: 
    radial-gradient(circle at 20% 80%, rgba(123, 45, 255, 0.08) 0%, transparent 65%),
    radial-gradient(circle at 80% 20%, rgba(0, 200, 255, 0.08) 0%, transparent 65%),
    radial-gradient(circle at 40% 40%, rgba(255, 45, 123, 0.05) 0%, transparent 65%);
  opacity: 0.98;
}

.background-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: 
    radial-gradient(circle at 20% 80%, rgba(123, 45, 255, 0.08) 0%, transparent 85%),
    radial-gradient(circle at 80% 20%, rgba(0, 200, 255, 0.08) 0%, transparent 85%),
    radial-gradient(circle at 40% 40%, rgba(255, 45, 123, 0.05) 0%, transparent 85%);
}

/* Subtle Glow Elements */
.glow-element {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.12;
  z-index: -1;
  pointer-events: none;
}

.glow-center {
  width: 400px;
  height: 400px;
  background: var(--primary);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: gentle-pulse 20s ease-in-out infinite;
}

.glow-corner-1 {
  width: 300px;
  height: 300px;
  background: var(--secondary);
  top: -100px;
  left: -100px;
  animation: gentle-float 25s ease-in-out infinite;
}

.glow-corner-2 {
  width: 250px;
  height: 250px;
  background: var(--accent);
  bottom: -80px;
  right: -80px;
  animation: gentle-float 30s ease-in-out infinite reverse;
}

@keyframes gentle-pulse {
  0%, 100% { opacity: 0.08; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.15; transform: translate(-50%, -50%) scale(1.05); }
}

@keyframes gentle-float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(20px, 20px) rotate(120deg); }
  66% { transform: translate(-15px, 15px) rotate(240deg); }
}

    /* Hero Section */
    .hero-section {
      min-height: 85vh;
      display: flex;
      align-items: center;
      padding: 4rem 2rem;
      position: relative;
      overflow: hidden;
      background: var(--gradient-dark);
    }

    .hero-content {
      max-width: 1400px;
      margin: 0 auto;
      width: 100%;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .hero-text {
      color: var(--text-light);
    }

    .hero-tag {
      display: inline-block;
      background: rgba(0, 200, 255, 0.15);
      color: var(--primary);
      padding: 0.5rem 1.2rem;
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      margin-bottom: 1.5rem;
      border: 1px solid rgba(0, 200, 255, 0.3);
    }

    .hero-title {
      font-size: 3.5rem;
      font-weight: 700;
      line-height: 1.1;
      margin-bottom: 1.5rem;
      background: linear-gradient(135deg, var(--primary) 0%, var(--light) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-subtitle {
      font-size: 1.25rem;
      line-height: 1.6;
      color: var(--soft-gray);
      margin-bottom: 2rem;
      max-width: 600px;
    }

    .hero-features {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
      margin-bottom: 3rem;
    }

    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 1rem;
    }

    .feature-icon {
      color: var(--primary);
      font-size: 1.5rem;
      margin-top: 0.25rem;
    }

    .feature-text {
      flex: 1;
    }

    .feature-title {
      color: var(--text-light);
      font-weight: 600;
      margin-bottom: 0.25rem;
    }

    .feature-description {
      color: var(--soft-gray);
      font-size: 0.95rem;
      line-height: 1.5;
    }

    .hero-cta {
      display: flex;
      gap: 1.5rem;
      flex-wrap: wrap;
    }

    .btn-hero-primary {
      background: var(--gradient-primary);
      color: white;
      padding: 1rem 2.5rem;
      border-radius: var(--border-radius);
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
      border: none;
      cursor: pointer;
      box-shadow: var(--glow);
    }

    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(0, 200, 255, 0.4);
    }

    .btn-hero-secondary {
      background: transparent;
      color: var(--primary);
      padding: 1rem 2.5rem;
      border-radius: var(--border-radius);
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
      border: 2px solid var(--primary);
    }

    .btn-hero-secondary:hover {
      background: rgba(0, 200, 255, 0.1);
      transform: translateY(-2px);
    }

    /* Lead Magnet Sidebar */
    .lead-magnet-sidebar {
      background: rgba(10, 14, 23, 0.8);
      backdrop-filter: blur(20px);
      border-radius: var(--border-radius);
      padding: 2.5rem;
      border: 1px solid rgba(0, 200, 255, 0.2);
      box-shadow: var(--shadow-medium);
      position: relative;
      overflow: hidden;
    }

    .lead-magnet-sidebar::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--gradient-primary);
    }

    .lead-magnet-title {
      color: var(--text-light);
      font-size: 1.75rem;
      font-weight: 700;
      margin-bottom: 1rem;
      line-height: 1.2;
    }

    .lead-magnet-subtitle {
      color: var(--soft-gray);
      margin-bottom: 2rem;
      line-height: 1.5;
    }

    .lead-magnet-list {
      margin-bottom: 2.5rem;
    }

    .lead-magnet-list li {
      color: var(--text-light);
      margin-bottom: 0.75rem;
      display: flex;
      align-items: flex-start;
      gap: 0.75rem;
    }

    .lead-magnet-list li i {
      color: var(--primary);
      margin-top: 0.25rem;
    }

    .lead-magnet-form {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .form-label {
      color: var(--text-light);
      font-size: 0.9rem;
      font-weight: 500;
    }

    .form-input {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--border-radius-sm);
      padding: 0.875rem 1rem;
      color: var(--text-light);
      font-family: var(--font-main);
      transition: var(--transition);
    }

    .form-input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.1);
    }

    .btn-download {
      background: var(--gradient-primary);
      color: white;
      padding: 1rem;
      border-radius: var(--border-radius-sm);
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      margin-top: 0.5rem;
    }

    .btn-download:hover {
      transform: translateY(-2px);
      box-shadow: var(--glow);
    }

    .privacy-note {
      font-size: 0.8rem;
      color: var(--soft-gray);
      text-align: center;
      margin-top: 1rem;
      line-height: 1.4;
    }

    /* Main Content Container */
    .main-content {
      max-width: 1400px;
      margin: 0 auto;
      padding: 4rem 2rem;
      position: relative;
      z-index: 1;
    }

    .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 1rem;
      text-align: center;
    }

    .section-subtitle {
      font-size: 1.25rem;
      color: var(--soft-gray);
      text-align: center;
      max-width: 800px;
      margin: 0 auto 3rem;
      line-height: 1.6;
    }

    /* Three-Pillar Section */
    .pillars-section {
      margin-bottom: 5rem;
    }

    .pillars-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
      gap: 2rem;
      margin-top: 3rem;
    }

    .pillar-card {
      background: rgba(10, 14, 23, 0.8);
      backdrop-filter: blur(20px);
      border-radius: var(--border-radius);
      padding: 2.5rem;
      border: 1px solid rgba(123, 45, 255, 0.2);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .pillar-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary);
      box-shadow: var(--glow);
    }

    .pillar-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--gradient-primary);
    }

    .pillar-icon {
      font-size: 2.5rem;
      color: var(--primary);
      margin-bottom: 1.5rem;
    }

    .pillar-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 1rem;
    }

    .pillar-description {
      color: var(--soft-gray);
      line-height: 1.6;
      margin-bottom: 1.5rem;
    }

    .pillar-features {
      list-style: none;
      padding: 0;
    }

    .pillar-features li {
      color: var(--text-light);
      margin-bottom: 0.5rem;
      display: flex;
      align-items: flex-start;
      gap: 0.5rem;
    }

    .pillar-features li i {
      color: var(--primary);
      font-size: 0.875rem;
      margin-top: 0.25rem;
    }

    /* Clinical Protocol Section - UPDATED: Two column layout with image holder */
    .protocol-section {
      background: rgba(10, 14, 23, 0.9);
      border-radius: var(--border-radius);
      padding: 3rem;
      margin-bottom: 5rem;
      border: 1px solid rgba(0, 200, 255, 0.2);
    }

    .protocol-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
      align-items: start;
      margin-top: 2rem;
    }

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

    .protocol-step {
      text-align: left;
      padding: 1.75rem;
      background: rgba(0, 200, 255, 0.05);
      border-radius: var(--border-radius);
      transition: var(--transition);
      display: flex;
      align-items: flex-start;
      gap: 1rem;
    }

    .protocol-step:hover {
      background: rgba(0, 200, 255, 0.1);
      transform: translateX(4px);
    }

    .step-number {
      display: flex;
      align-items: center;
      justify-content: center;
      min-width: 40px;
      height: 40px;
      background: var(--gradient-primary);
      color: white;
      border-radius: 50%;
      font-weight: 700;
      margin-top: 0.25rem;
    }

    .step-content {
      flex: 1;
    }

    .step-title {
      color: var(--text-light);
      font-weight: 600;
      margin-bottom: 0.5rem;
      font-size: 1.2rem;
    }

    .step-description {
      color: var(--soft-gray);
      font-size: 0.95rem;
      line-height: 1.5;
    }

    /* Protocol image holder */
    .protocol-image-holder {
      background: rgba(0, 200, 255, 0.03);
      border: 2px dashed rgba(0, 200, 255, 0.3);
      border-radius: var(--border-radius);
      min-height: 400px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 2rem;
      text-align: center;
      transition: var(--transition);
      backdrop-filter: blur(5px);
    }

    .protocol-image-holder:hover {
      border-color: var(--primary);
      background: rgba(0, 200, 255, 0.06);
    }

    .image-placeholder-icon {
      font-size: 4rem;
      color: var(--primary);
      margin-bottom: 1rem;
      opacity: 0.7;
    }

    .image-placeholder-text {
      color: var(--soft-gray);
      font-size: 1.1rem;
      max-width: 280px;
      margin: 0 auto;
      line-height: 1.6;
    }

    .image-placeholder-sub {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-top: 1rem;
    }

    /* Scientific Rationale */
    .rationale-section {
      margin-bottom: 5rem;
    }

    .rationale-content {
      background: rgba(10, 14, 23, 0.8);
      backdrop-filter: blur(20px);
      border-radius: var(--border-radius);
      padding: 3rem;
      border: 1px solid rgba(123, 45, 255, 0.2);
    }

    .rationale-text {
      color: var(--soft-gray);
      line-height: 1.8;
      font-size: 1.1rem;
      margin-bottom: 2rem;
    }

    .rationale-text strong {
      color: var(--text-light);
      font-weight: 600;
    }

    /* Delightful Divider */
    .content-divider {
      border: none;
      height: 2px;
      background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(0, 200, 255, 0.3) 25%, 
        rgba(123, 45, 255, 0.3) 50%, 
        rgba(0, 200, 255, 0.3) 75%, 
        transparent 100%);
      margin: 3rem auto;
      width: 80%;
      position: relative;
    }

    .content-divider::before,
    .content-divider::after {
      content: "";
      position: absolute;
      width: 12px;
      height: 12px;
      background: var(--primary);
      border-radius: 50%;
      top: 50%;
      transform: translateY(-50%);
      animation: subtle-sparkle 4s infinite;
    }

    .content-divider::before {
      left: 25%;
      animation-delay: 0.5s;
    }

    .content-divider::after {
      right: 25%;
      animation-delay: 1.5s;
    }

    @keyframes subtle-sparkle {
      0%, 100% { opacity: 0.3; }
      50% { opacity: 1; }
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
      }
      
      .hero-title {
        font-size: 2.75rem;
      }
      
      .pillars-grid {
        grid-template-columns: 1fr;
      }
      
      .protocol-grid {
        grid-template-columns: 1fr;
      }
      
      .protocol-image-holder {
        min-height: 300px;
        order: -1; /* image on top for mobile */
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2.25rem;
      }
      
      .hero-cta {
        flex-direction: column;
        align-items: stretch;
      }
      
      .section-title {
        font-size: 2rem;
      }
      
      .protocol-steps {
        grid-template-columns: 1fr;
      }
      
      .protocol-step {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 480px) {
      .hero-section {
        padding: 2rem 1rem;
      }
      
      .hero-title {
        font-size: 1.875rem;
      }
      
      .main-content {
        padding: 2rem 1rem;
      }
      
      .protocol-section,
      .rationale-content {
        padding: 2rem 1.5rem;
      }
    }