:root{--primary-color: #2c3e50;--accent-color: #e67e22;--background-bg: #f8f9fa;--card-bg: #ffffff;--text-color: #333333;--text-light: #666666;--border-color: #e0e0e0;--tooltip-bg: #2c3e50;--tooltip-text: #ffffff;--status-success-bg: #E8F5E9;--status-success-text: #2E7D32;--status-warning-bg: #FFF3E0;--status-warning-text: #EF6C00;--status-error-bg: #FFEBEE;--status-error-text: #C62828}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;background-color:var(--background-bg);color:var(--text-color);line-height:1.5;padding:20px;-webkit-text-size-adjust:100%}hr{border:0;height:1px;background-color:#2c3e501a;margin:30px 0}.app-container{max-width:1200px;margin:0 auto;padding:0}.calculator-card{background:var(--card-bg);border-radius:12px;box-shadow:0 4px 20px #0000000d;padding:40px;display:grid;grid-template-columns:minmax(350px,40%) 1fr;gap:60px;align-items:start}.app-title{font-size:1.8rem;color:var(--primary-color);margin-bottom:15px;font-weight:700;line-height:1.2;display:flex;align-items:center;gap:12px}.input-section{width:100%}.form-group{margin-bottom:12px}.form-group:last-child{margin-bottom:0}.form-group label{display:flex;align-items:center;font-weight:600;margin-bottom:4px;font-size:.95rem;color:var(--primary-color);flex-wrap:wrap}.info-icon-wrapper{position:relative;display:inline-flex;justify-content:center;align-items:center;margin-left:8px;cursor:help;outline:none;vertical-align:middle}.info-icon{width:18px;height:18px;background-color:var(--border-color);color:var(--text-light);border-radius:50%;font-size:12px;font-weight:700;font-family:monospace;display:flex;align-items:center;justify-content:center;transition:all .2s}.info-icon-wrapper:hover .info-icon,.info-icon-wrapper:focus .info-icon{background-color:var(--accent-color);color:#fff;transform:scale(1.1)}.tooltip-text{visibility:hidden;width:280px;background-color:var(--tooltip-bg);color:var(--tooltip-text);text-align:left;border-radius:6px;padding:12px 15px;font-size:.85rem;font-weight:400;line-height:1.4;white-space:pre-line;position:absolute;z-index:1000;bottom:100%;left:50%;margin-bottom:10px;transform:translate(-50%) translateY(5px);opacity:0;transition:opacity .2s ease,transform .2s ease,visibility .2s;box-shadow:0 4px 15px #00000026;pointer-events:none}.tooltip-text:after{content:"";position:absolute;top:100%;left:50%;margin-left:-6px;border-width:6px;border-style:solid;border-color:var(--tooltip-bg) transparent transparent transparent}.info-icon-wrapper:hover .tooltip-text,.info-icon-wrapper:focus .tooltip-text{visibility:visible;opacity:1;transform:translate(-50%) translateY(0)}.input-wrapper{display:flex;align-items:center;border:1px solid var(--border-color);border-radius:8px;background-color:#fff;transition:border-color .2s;overflow:hidden}.input-wrapper:focus-within{border-color:var(--accent-color);box-shadow:0 0 0 3px #e67e221a}.input-wrapper input{flex:1;min-width:0;padding:10px 0 10px 15px;font-size:16px;border:none;background:transparent;color:var(--text-color);outline:none}.input-wrapper input::-webkit-outer-spin-button,.input-wrapper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.input-wrapper input[type=number]{-moz-appearance:textfield}.suffix{padding:0 15px 0 8px;color:var(--text-light);font-size:.9rem;background-color:transparent;pointer-events:none;-webkit-user-select:none;user-select:none;white-space:nowrap}.form-select{width:100%;padding:10px 15px;border:1px solid var(--border-color);border-radius:8px;background-color:#fff;color:var(--text-color);font-size:16px;outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23333' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 15px center;background-size:16px;transition:border-color .2s}.form-select:focus{border-color:var(--accent-color);box-shadow:0 0 0 3px #e67e221a}.form-select optgroup{font-weight:700;color:var(--primary-color)}.unit-selection{display:flex;gap:10px;margin-bottom:5px;flex-wrap:wrap}.radio-pill{flex:1;display:flex;align-items:center;justify-content:center;padding:10px;border:1px solid var(--border-color);border-radius:8px;cursor:pointer;font-size:.9rem;transition:all .2s ease;background:#fff;color:var(--text-light);white-space:nowrap;min-width:140px}.radio-pill input{display:none}.radio-pill.active{background-color:var(--accent-color);border-color:var(--accent-color);color:#fff;font-weight:600;box-shadow:0 2px 5px #e67e224d}.calculate-btn{width:100%;padding:16px;background-color:var(--accent-color);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;margin-top:10px;transition:filter .2s;text-transform:uppercase;letter-spacing:1px;-webkit-tap-highlight-color:transparent}.calculate-btn:hover:not(:disabled){filter:brightness(110%)}.calculate-btn:active:not(:disabled){transform:scale(.98)}.output-section{display:flex;flex-direction:column;justify-content:flex-start;height:100%;gap:20px;padding-top:10px}.result-box{color:#fff;text-align:center}.result-box.primary{background:var(--primary-color);padding:30px;border-radius:12px;box-shadow:0 4px 15px #2c3e5026;margin-bottom:10px}.result-box.primary .result-label{font-size:1rem;text-transform:uppercase;letter-spacing:1px;opacity:.8;margin-bottom:10px}.result-box.primary .result-value{font-size:4rem;font-weight:700;line-height:1.1;word-break:break-word}.result-box.primary .result-unit{font-size:1.6rem;opacity:.8;margin-left:8px;font-weight:500}.result-box.primary .net-price{font-size:1.1rem;opacity:.9;margin-top:10px;font-weight:400}.result-box.secondary{background:var(--card-bg);padding:20px 30px;border-radius:12px;border:1px solid var(--border-color);box-shadow:0 4px 20px #0000000d;color:var(--primary-color)}.result-box.secondary .result-label-heading{font-size:1rem;font-weight:600;color:var(--primary-color);line-height:1.2}.result-box.secondary .result-label{font-size:.85rem;margin-bottom:8px;color:var(--text-light);text-transform:uppercase;letter-spacing:.5px}.result-box.secondary .result-value{font-size:2rem;font-weight:600;line-height:1.2}.result-box.secondary .result-unit{font-size:1.1rem;margin-left:5px;color:var(--text-light)}@media(max-width:900px){.calculator-card{grid-template-columns:1fr;gap:40px}.output-section{border-top:1px solid var(--border-color);padding-top:40px}}@media(max-width:600px){body{padding:10px}.calculator-card{padding:20px;gap:30px}.app-title{font-size:1.5rem;margin-bottom:20px;text-align:center}}input[type=range].styled-range{-webkit-appearance:none;width:100%;margin:10px 0;background:transparent;--range-color: var(--accent-color)}input[type=range].styled-range:focus{outline:none}input[type=range].styled-range::-webkit-slider-runnable-track{width:100%;height:6px;cursor:pointer;background:#e0e0e0;border-radius:3px}input[type=range].styled-range::-webkit-slider-thumb{height:20px;width:20px;border-radius:50%;background:var(--range-color);cursor:pointer;-webkit-appearance:none;margin-top:-7px;box-shadow:0 2px 4px #0003;transition:background-color .2s ease}.viz-container{width:100%;height:300px;background:#fdfdfd;border-radius:8px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;border:1px solid var(--border-color);margin-bottom:20px}.badge{padding:6px 14px;border-radius:20px;font-size:.85rem;font-weight:700;display:inline-flex;align-items:center;gap:6px;text-transform:uppercase;letter-spacing:.5px}.badge-success{background:var(--status-success-bg);color:var(--status-success-text)}.badge-warning{background:var(--status-warning-bg);color:var(--status-warning-text)}.badge-danger{background:var(--status-error-bg);color:var(--status-error-text)}.recommendation-box{background:#eef2f5;border-left:4px solid var(--primary-color);padding:15px 20px;margin-top:20px;border-radius:0 6px 6px 0;font-size:.95rem;color:var(--text-color)}.recommendation-box strong{color:var(--primary-color);display:block;margin-bottom:8px}.formula-box{background:var(--primary-color);color:#ecf0f1;padding:20px;border-radius:8px;font-family:Roboto Mono,monospace;font-size:.9rem;margin-top:15px;overflow-x:auto;border-left:4px solid var(--accent-color)}.persona-tabs{display:flex;border-bottom:1px solid var(--border-color);margin-bottom:25px;gap:20px}.persona-tab{padding:10px 5px;cursor:pointer;font-weight:600;color:var(--text-light);border-bottom:3px solid transparent;margin-bottom:-1px;transition:all .2s}.persona-tab:hover{color:var(--primary-color)}.persona-tab.active{color:var(--primary-color);border-bottom-color:var(--accent-color)}.data-table{width:100%;border-collapse:collapse;font-size:.9rem;border:1px solid var(--border-color);border-radius:8px;overflow:hidden;margin-top:20px}.data-table th,.data-table td{text-align:left;padding:12px 15px;border-bottom:1px solid var(--border-color)}.data-table th{background-color:#f1f3f5;font-weight:600;color:var(--primary-color)}.data-table tr:last-child td{border-bottom:none}