:root{--primary-color: #1a365d;--secondary-color: #2c5282;--accent-color: #3182ce;--text-color: #2d3748;--light-gray: #f7fafc;--border-color: #e2e8f0}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--text-color);background-color:#fff}.container{max-width:1200px;margin:0 auto;padding:0 20px}.shell{min-height:100vh;display:flex;flex-direction:column}.hero{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;padding:80px 0;text-align:center}.hero h1{font-size:3.5rem;margin-bottom:16px;font-weight:700}.hero .tagline{font-size:1.5rem;margin-bottom:32px;opacity:.9}.cta-buttons{display:flex;justify-content:center;gap:20px}.btn-primary,.btn-secondary{display:inline-block;padding:12px 32px;border-radius:6px;text-decoration:none;font-weight:600;transition:all .3s ease;border:2px solid transparent}.btn-primary{background-color:var(--accent-color);color:#fff}.btn-primary:hover{background-color:#2c5282;transform:translateY(-2px);box-shadow:0 4px 12px #0003}.btn-secondary{background-color:transparent;color:#fff;border-color:#fff}.btn-secondary:hover{background-color:#ffffff1a;transform:translateY(-2px)}.about,.products,.services,.contact{padding:80px 0}.about{background-color:var(--light-gray)}.products{background-color:#fff}.services{background-color:var(--light-gray)}.contact{background-color:#fff}section h2{text-align:center;font-size:2.5rem;margin-bottom:40px;color:var(--primary-color)}.about p{font-size:1.1rem;margin-bottom:20px;max-width:800px;margin-left:auto;margin-right:auto;text-align:center}.product-categories{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px;margin-top:40px}.category{background:#fff;padding:30px;border-radius:8px;box-shadow:0 4px 6px #0000001a;text-align:center}.category h3{color:var(--secondary-color);margin-bottom:20px;font-size:1.5rem}.category ul{list-style:none}.category li{padding:8px 0;border-bottom:1px solid var(--border-color)}.category li:last-child{border-bottom:none}.services p{font-size:1.1rem;margin-bottom:20px;max-width:800px;margin-left:auto;margin-right:auto;text-align:center}.contact-info{text-align:center;margin-bottom:40px}.contact-info p{font-size:1.1rem;margin-bottom:10px}.contact-form form{max-width:700px;margin:0 auto}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}input,textarea{width:100%;padding:12px;border:1px solid var(--border-color);border-radius:6px;font-size:1rem}input:focus,textarea:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px #3182ce33}button[type=submit]{width:100%;margin-top:20px}.footer{background-color:var(--primary-color);color:#fff;text-align:center;padding:30px 0}@media (max-width: 768px){.hero h1{font-size:2.5rem}.hero .tagline{font-size:1.2rem}.cta-buttons{flex-direction:column;align-items:center}.form-row{grid-template-columns:1fr}section h2{font-size:2rem}}