*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:#333}.container{max-width:1200px;margin:0 auto;padding:20px}header{text-align:center;color:#fff;padding:30px 0}header h1{font-size:3rem;margin-bottom:10px;text-shadow:2px 2px 4px rgba(0,0,0,.2)}.tagline{font-size:1.3rem;opacity:.95}.main-content{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:50px}.input-section,.output-section{background:#fff;border-radius:20px;padding:30px;box-shadow:0 20px 60px #0000001a}.type-selector{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:10px;margin-bottom:30px}.type-btn{padding:12px 15px;background:#f8f9fa;border:2px solid #e9ecef;border-radius:10px;cursor:pointer;font-size:.95rem;transition:all .3s;white-space:nowrap}.type-btn:hover{background:#e9ecef}.type-btn.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-color:#667eea}.input-group{margin-bottom:20px}.input-group label{display:block;margin-bottom:8px;font-weight:600;color:#555}.input-field{width:100%;padding:12px;border:2px solid #e9ecef;border-radius:10px;font-size:1rem;transition:border-color .3s}.input-field:focus{outline:none;border-color:#667eea}.textarea{resize:vertical;min-height:80px}.options-section{margin:30px 0;padding-top:20px;border-top:2px solid #f0f0f0}.options-section h3{margin-bottom:15px;color:#667eea}.options-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:15px}.option-group label{display:block;margin-bottom:5px;font-size:.9rem;color:#666}.option-group select{width:100%;padding:8px;border:2px solid #e9ecef;border-radius:8px;background:#fff}.generate-btn{width:100%;padding:18px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:15px;font-size:1.2rem;font-weight:700;cursor:pointer;transition:all .3s;box-shadow:0 10px 30px #667eea4d}.generate-btn:hover{transform:translateY(-2px);box-shadow:0 15px 40px #667eea66}.qr-display{margin-bottom:30px}#qr-container{display:flex;justify-content:center;align-items:center;min-height:300px;background:#f8f9fa;border-radius:15px;padding:30px}#qr-container canvas{border:10px solid white;box-shadow:0 10px 30px #0000001a;border-radius:10px}.placeholder{text-align:center;color:#999}.placeholder-icon{font-size:4rem;display:block;margin-bottom:15px;opacity:.5}.download-section h3{margin-bottom:20px;color:#667eea;text-align:center}.download-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:15px;margin-bottom:25px}.download-btn{padding:12px 20px;background:#fff;border:2px solid #667eea;color:#667eea;border-radius:10px;font-weight:700;cursor:pointer;transition:all .3s}.download-btn:hover{background:#667eea;color:#fff}.stats{text-align:center;padding:20px;background:#f8f9fa;border-radius:10px}.stats p{margin:5px 0;color:#666}.counter{font-size:.9rem;color:#999}.counter span{color:#667eea;font-weight:700}.features-section{background:#fff;border-radius:20px;padding:40px;margin-bottom:30px;box-shadow:0 20px 60px #0000001a}.features-section h2{text-align:center;margin-bottom:30px;color:#333;font-size:2rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}.feature{text-align:center;padding:20px}.feature-icon{font-size:3rem;display:block;margin-bottom:15px}.feature h3{color:#667eea;margin-bottom:10px}.feature p{color:#666;font-size:.95rem}.use-cases{background:#fff;border-radius:20px;padding:40px;box-shadow:0 20px 60px #0000001a}.use-cases h2{text-align:center;margin-bottom:30px;color:#333}.use-cases-grid{display:flex;flex-wrap:wrap;gap:15px;justify-content:center}.use-case{padding:10px 25px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:25px;font-weight:500}@media (max-width: 768px){.main-content{grid-template-columns:1fr}.type-selector{grid-template-columns:repeat(3,1fr)}.features-grid{grid-template-columns:1fr}header h1{font-size:2rem}}