.hero-section{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:80px 20px;text-align:center}.hero-content{max-width:900px;margin:0 auto}.hero-title{font-size:48px;font-weight:700;margin-bottom:24px;line-height:1.2;letter-spacing:-.5px}.hero-subtitle{font-size:20px;margin-bottom:40px;opacity:.95;line-height:1.6;max-width:700px;margin-left:auto;margin-right:auto}.hero-features{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;margin-top:50px}.hero-feature{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:500;opacity:.9}.hero-feature svg{flex-shrink:0}.demos-section{padding:80px 20px;background-color:var(--bg-light)}.demos-container{max-width:1200px;margin:0 auto}.demos-title{font-size:36px;font-weight:700;text-align:center;margin-bottom:16px;color:var(--text-dark)}.demos-subtitle{font-size:18px;text-align:center;color:var(--text-gray);margin-bottom:50px;max-width:700px;margin-left:auto;margin-right:auto}.demos-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:30px;margin-top:40px}.demo-card{background:#fff;border-radius:12px;padding:32px;box-shadow:0 2px 8px #0000001a;transition:all .3s ease;cursor:pointer;border:2px solid transparent;display:flex;flex-direction:column;height:100%}.demo-card:hover{transform:translateY(-8px);box-shadow:0 8px 24px #00000026;border-color:var(--primary-blue)}.demo-card-header{margin-bottom:20px}.demo-icon{width:64px;height:64px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}.ophthalmology-icon{background:linear-gradient(135deg,#4a90e2,#357abd)}.veterinary-icon{background:linear-gradient(135deg,#50c878,#3fa863)}.therapy-icon{background:linear-gradient(135deg,#ff6b6b,#e55555)}.demo-card-title{font-size:24px;font-weight:700;color:var(--text-dark);margin-bottom:12px}.demo-card-content{flex:1;margin-bottom:20px}.demo-description{font-size:15px;line-height:1.6;color:var(--text-gray);margin-bottom:16px}.demo-features{display:flex;flex-wrap:wrap;gap:8px}.demo-feature-tag{display:inline-block;padding:6px 12px;background-color:var(--bg-light);border-radius:6px;font-size:12px;font-weight:500;color:var(--text-dark)}.demo-card-footer{padding-top:20px;border-top:1px solid var(--border-color)}.demo-link{color:var(--primary-blue);font-weight:600;font-size:15px;transition:color .2s}.demo-card:hover .demo-link{color:var(--primary-blue)}.features-section{padding:80px 20px;background-color:#fff}.features-container{max-width:1200px;margin:0 auto}.features-title{font-size:36px;font-weight:700;text-align:center;margin-bottom:50px;color:var(--text-dark)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px}.feature-item{text-align:center;padding:20px}.feature-icon{font-size:48px;margin-bottom:20px;display:block}.feature-name{font-size:20px;font-weight:600;color:var(--text-dark);margin-bottom:12px}.feature-description{font-size:15px;line-height:1.6;color:var(--text-gray)}@media (max-width: 768px){.hero-title{font-size:32px}.hero-subtitle{font-size:18px}.hero-features{flex-direction:column;gap:20px}.demos-title{font-size:28px}.demos-subtitle{font-size:16px}.demos-grid{grid-template-columns:1fr;gap:24px}.demo-card{padding:24px}.features-title{font-size:28px}.features-grid{grid-template-columns:1fr;gap:30px}}