.long-division{width:100%;padding:15px;transition:all .5s ease}.long-division.fullscreen{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:white;z-index:1000;overflow-y:auto;padding:20px;box-sizing:border-box}.fullscreen-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid #74c0fc}.fullscreen-header h2{color:#333;margin:0;font-size:1.8rem}.division-info{margin-bottom:15px}.division-info h3{color:#333;margin:0;font-size:1.5rem;text-align:center;padding-bottom:10px;border-bottom:2px solid #74c0fc}.exit-fullscreen{padding:8px 16px;background-color:#ff6b6b;color:white;border:none;border-radius:8px;font-weight:700;cursor:pointer;transition:background-color .3s}.exit-fullscreen:hover{background-color:#fa5252}.division-inputs{gap:15px;margin-bottom:20px}.division-inputs,.input-group{display:flex;flex-direction:column}.input-group{gap:5px}.input-group label{font-weight:700;color:#555;font-size:1rem}.input-group input{padding:12px;border-radius:10px;border:2px solid #dee2e6;font-size:1.2rem;transition:border-color .3s}.input-group input:focus{border-color:#74c0fc;outline:none}.calculate-button{padding:12px;background-color:#4dabf7;color:white;border:none;border-radius:10px;font-size:1.1rem;font-weight:700;cursor:pointer;transition:all .2s ease}.calculate-button:hover{background-color:#339af0;transform:translateY(-2px)}.calculate-button:active{transform:translateY(0)}.error-message{color:#e03131;background-color:#ffe3e3;padding:10px;border-radius:8px;margin-bottom:15px;animation:shake .5s ease-in-out}.division-result{background-color:#e6fcf5;padding:15px;border-radius:10px;margin-bottom:20px;border-left:5px solid #38d9a9}.division-result h3{color:#0b7285;margin-bottom:5px}.division-steps{margin-top:20px}.division-steps h3{margin-bottom:15px;color:#495057}.steps-container{background-color:#f8f9fa;padding:15px;border-radius:10px;box-shadow:0 3px 10px rgba(0,0,0,.1)}.long-division-visual{display:flex;justify-content:center;margin-bottom:20px;font-size:1.5rem;font-family:monospace;position:relative}.division-bar{display:flex;border-top:2px solid #333;margin-left:5px}.divisor{margin-right:5px}.dividend{margin-left:5px;font-weight:700}.quotient{position:absolute;top:-30px;right:20px;color:#4c6ef5}.steps-list{padding-left:20px}.step{margin-bottom:10px;padding:8px;border-radius:6px;animation:fadeIn .5s ease-in-out}.step.divide{background-color:#e7f5ff}.step.subtract{background-color:#fff9db}.step.bring-down{background-color:#f4fce3}.long-division-graphic{margin:30px auto;max-width:90%}.graphic-container{background-color:#f8f9fa;padding:30px;border-radius:15px;box-shadow:0 4px 15px rgba(0,0,0,.1);margin-bottom:30px}.division-layout{display:flex;align-items:flex-start;font-family:monospace;font-size:24px;justify-content:center}.divisor-box{font-weight:700;color:#2b8a3e;margin-right:10px;animation:fadeIn .8s ease}.dividend-container{position:relative}.quotient-row{display:flex;justify-content:flex-end;color:#4c6ef5;font-weight:700;margin-bottom:5px;animation:fadeIn .8s ease}.quotient-digit{width:2em;text-align:center}.division-line{height:2px;background-color:#333;margin-bottom:5px;position:relative}.division-line:before{content:")";position:absolute;left:-10px;top:-10px;font-size:24px}.dividend-row{display:flex;margin-bottom:10px;animation:fadeIn .8s ease}.dividend-digit{width:2em;text-align:center;font-weight:700}.subtraction-row{display:flex;flex-direction:column;margin-bottom:15px;animation:slideDown .5s ease}.subtraction-line{margin-left:5px}.subtracted-value,.subtraction-line{font-weight:700;color:#c92a2a}.remainder-line{height:1px;background-color:#adb5bd;margin:5px 0;width:100%}.remainder-value{color:#5f3dc4}.remainder-box{margin-top:15px;color:#e67700;font-weight:700;text-align:right;animation:fadeIn 1s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes shake{0%,to{transform:translateX(0)}20%,60%{transform:translateX(-5px)}40%,80%{transform:translateX(5px)}}@media (max-width:768px){.division-layout{font-size:20px}.dividend-digit,.quotient-digit{width:1.5em}.division-info h3{font-size:1.3rem}}@media (max-width:480px){.long-division{padding:10px}.long-division-visual{font-size:1.2rem}.calculate-button,.input-group input{font-size:1rem;padding:10px}.division-layout{font-size:16px}.fullscreen-header h2{font-size:1.4rem}.graphic-container{padding:15px}.division-info h3{font-size:1.1rem}}