*{box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:0;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:#222}.app{max-width:1200px;margin:0 auto;padding:40px 20px}h1{text-align:center;color:#fff;font-size:2.5rem;margin-bottom:30px;text-shadow:2px 2px 4px rgba(0,0,0,.2);animation:fadeInDown .6s ease-out}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.container{max-width:900px;margin:auto;background:#fffffffa;padding:40px;border-radius:20px;box-shadow:0 20px 60px #0000004d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:fadeInUp .6s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}h3{margin-top:30px;margin-bottom:15px;color:#667eea;font-size:1.4rem;border-bottom:2px solid #667eea;padding-bottom:8px;display:inline-block}h3:first-child{margin-top:0}h4{margin-top:20px;margin-bottom:10px;color:#764ba2;font-size:1.2rem}label{display:block;margin-top:15px;font-weight:600;color:#555;font-size:.95rem;transition:color .3s ease}label:hover{color:#667eea}input[type=number]{width:100%;padding:12px 16px;margin-top:6px;border-radius:10px;border:2px solid #e0e0e0;font-size:16px;transition:all .3s ease;background:#fafafa}input[type=number]:focus{outline:none;border-color:#667eea;background:#fff;box-shadow:0 0 0 3px #667eea1a}input[type=number]:hover{border-color:#764ba2}button{margin-top:30px;padding:16px 32px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;cursor:pointer;font-size:18px;font-weight:600;width:100%;transition:all .3s ease;box-shadow:0 4px 15px #667eea66;text-transform:uppercase;letter-spacing:1px}button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea99}button:active{transform:translateY(0)}#rezultat{margin-top:40px;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);padding:30px;border-radius:15px;font-size:16px;box-shadow:0 10px 30px #0000001a;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.spec{margin:10px 0;padding:8px 0}.label{font-weight:600;color:#444}.total{font-size:24px;font-weight:700;margin-top:20px;padding:15px;background:linear-gradient(135deg,#667eea,#764ba2);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;border:2px solid #667eea;border-radius:10px;text-align:center}.indent{padding-left:30px;font-size:14px;color:#666}.zone-green{background:linear-gradient(135deg,#e8f5e9,#c8e6c9);padding:20px;margin:15px 0;border-radius:12px;border-left:6px solid #4caf50;box-shadow:0 4px 15px #4caf5033;transition:all .3s ease}.zone-green:hover{transform:translate(5px);box-shadow:0 6px 20px #4caf504d}.zone-blue{background:linear-gradient(135deg,#e3f2fd,#bbdefb);padding:20px;margin:15px 0;border-radius:12px;border-left:6px solid #2196f3;box-shadow:0 4px 15px #2196f333;transition:all .3s ease}.zone-blue:hover{transform:translate(5px);box-shadow:0 6px 20px #2196f34d}.zone-red{background:linear-gradient(135deg,#ffebee,#ffcdd2);padding:20px;margin:15px 0;border-radius:12px;border-left:6px solid #f44336;box-shadow:0 4px 15px #f4433633;transition:all .3s ease}.zone-red:hover{transform:translate(5px);box-shadow:0 6px 20px #f443364d}hr{margin:30px 0;border:none;height:2px;background:linear-gradient(90deg,transparent,#667eea,transparent)}@media(max-width:768px){.app{padding:20px 10px}h1{font-size:2rem}.container{padding:25px 20px;border-radius:15px}h3{font-size:1.2rem}button{font-size:16px;padding:14px 24px}.total{font-size:20px}}.footer{text-align:center;padding:30px 20px;color:#ffffffe6;font-size:14px;margin-top:40px}.footer a{color:#fff;text-decoration:none;font-weight:600;transition:all .3s ease;padding:5px 10px;border-radius:5px;background:#ffffff1a;margin-left:5px}.footer a:hover{background:#fff3;transform:translateY(-2px);box-shadow:0 4px 10px #0003}