.trapz2026-container{all:initial;display:block}.trapz2026-container *{box-sizing:border-box!important;font-family:'Poppins',Arial,sans-serif!important;font-weight:normal!important}.trapz2026-container p,.trapz2026-container span,.trapz2026-container div,.trapz2026-container li,.trapz2026-container label,.trapz2026-container input,.trapz2026-container select,.trapz2026-container textarea{font-weight:normal!important}.trapz2026-container strong,.trapz2026-container b{font-weight:700!important}.trapz2026-container h1,.trapz2026-container h2,.trapz2026-container h3,.trapz2026-container h4,.trapz2026-container h5,.trapz2026-container h6{font-weight:600!important}.trapz2026-container input,.trapz2026-container select,.trapz2026-container button,.trapz2026-container textarea{-webkit-appearance:none!important;-moz-appearance:none!important;appearance:none!important;background-image:none!important;border-radius:12px!important}.trapz2026-container button{cursor:pointer!important;text-decoration:none!important}.trapz2026-container{width:100%!important;margin:0 auto!important;padding:0px!important;font-family:'Poppins',Arial,sans-serif;color:#222;box-sizing:border-box}.trapz2026-container *,.trapz2026-container *::before,.trapz2026-container *::after{box-sizing:border-box}.trapz2026-card-header{text-align:center;margin-bottom:10px;padding:10px;border-radius:16px;background:#fff;box-shadow:0 8px 20px rgb(0 0 0 / .1);transition:transform .3s}.trapz2026-card-header:hover{transform:translateY(-2px)}.trapz2026-card-header h2{font-size:24px;color:#333;font-weight:600;margin-bottom:8px}.trapz2026-card-header p{font-size:14px;color:#555;margin:0 auto}.trapz2026-card{background:#fff;padding:3px;border-radius:16px;box-shadow:0 6px 18px rgb(0 0 0 / .08)}.trapz2026-info-box{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:16px;border-radius:12px;margin-bottom:20px;box-shadow:0 4px 12px rgb(0 0 0 / .15)}.trapz2026-info-box p{margin:0 0 10px 0;font-size:14px;line-height:1.6;font-weight:normal!important}.trapz2026-info-box p:last-child{margin-bottom:0}.trapz2026-info-box strong{font-weight:700!important}.trapz2026-warning-box{background:#fff3cd;border-left:4px solid #ffc107;padding:12px 16px;border-radius:8px;margin:16px 0}.trapz2026-warning-box p{margin:0 0 8px 0;font-size:13px;color:#856404;line-height:1.5;font-weight:normal!important}.trapz2026-warning-box p:last-child{margin-bottom:0}.trapz2026-warning-box strong{color:#d39e00;font-weight:700!important}.trapz2026-diagram-container{text-align:center;margin:20px 0;padding:16px;background:#f8f9fa;border-radius:12px}.trapz2026-method-selector{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:24px}.trapz2026-method-option{position:relative}.trapz2026-method-option input[type="radio"]{position:absolute;opacity:0;width:0;height:0}.trapz2026-method-option label{display:flex;flex-direction:column;align-items:center;padding:16px 12px;background:#f8f9fa;border:2px solid #e0e0e0;border-radius:12px;cursor:pointer;transition:all 0.3s;text-align:center}.trapz2026-method-option label:hover{background:#e3f2fd;border-color:#90caf9}.trapz2026-method-option input[type="radio"]:checked+label{background:linear-gradient(135deg,#1976d2 0%,#1565c0 100%);border-color:#1976d2;color:#fff}.trapz2026-method-icon{font-size:28px;margin-bottom:8px}.trapz2026-method-title{font-size:14px;font-weight:600!important;margin-bottom:4px}.trapz2026-method-desc{font-size:11px;opacity:.8;line-height:1.3}.trapz2026-input-section{background:#fff;padding:20px;border-radius:16px;box-shadow:0 8px 20px rgb(0 0 0 / .08);margin:0}.trapz2026-section-heading{margin-bottom:16px}.trapz2026-section-heading h4{margin:0 0 8px 0;font-weight:600;font-size:18px;color:#1976d2;border-bottom:2px solid #1976d2;padding-bottom:8px}.trapz2026-input-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}.trapz2026-input-group{flex:1;min-width:200px}.trapz2026-input-group label{display:block;margin-bottom:6px;font-weight:600!important;font-size:14px;color:#1976d2}.trapz2026-input-group input,.trapz2026-input-group select{width:100%;padding:12px 14px;border:1px solid #90caf9;border-radius:12px;font-size:15px;transition:.3s;background:#fff;font-weight:normal!important}.trapz2026-input-group input:focus,.trapz2026-input-group select:focus{outline:none;border-color:#1976d2;box-shadow:0 0 0 3px rgb(25 118 210 / .15)}.trapz2026-unit-input{display:flex;gap:8px;align-items:center}.trapz2026-unit-input input{flex:2}.trapz2026-unit-input select{flex:1}.trapz2026-unit-label{padding:12px 14px;background:#e3f2fd;border-radius:12px;font-size:14px;color:#1976d2;font-weight:600!important;white-space:nowrap}.trapz2026-coord-inputs{display:flex;gap:8px}.trapz2026-coord-pair{display:flex;align-items:center;gap:6px;flex:1}.trapz2026-coord-pair span{font-weight:600!important;color:#1976d2;font-size:14px;min-width:24px}.trapz2026-coord-pair input{flex:1;padding:12px 10px;border:1px solid #90caf9;border-radius:12px;font-size:15px}.trapz2026-inputs-container{margin-bottom:20px}.trapz2026-checkbox-options{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}.trapz2026-checkbox-option{display:flex;align-items:center;gap:10px;padding:12px;border-radius:8px;background:#f8f9fa;border:2px solid #e0e0e0;transition:all 0.2s}.trapz2026-checkbox-option:hover{background-color:#e3f2fd;border-color:#90caf9}.trapz2026-checkbox-option input[type="checkbox"]{width:22px;height:22px;cursor:pointer;accent-color:#1976d2;border:2px solid #1976d2;border-radius:4px;flex-shrink:0}.trapz2026-checkbox-option input[type="checkbox"]:checked{background-color:#1976d2}.trapz2026-checkbox-option label{cursor:pointer;font-size:14px;margin:0;font-weight:500!important;color:#333;user-select:none;flex:1}.trapz2026-btn-group{display:flex;gap:12px;margin-top:20px}.trapz2026-calculate-btn,.trapz2026-reset-btn{flex:1;padding:14px;border:none;border-radius:12px;font-weight:700!important;font-size:16px;cursor:pointer;transition:.2s}.trapz2026-calculate-btn{background:#1976d2;color:#fff}.trapz2026-calculate-btn:hover{background:#125ea8;transform:translateY(-2px)}.trapz2026-reset-btn{background:#f44336;color:#fff}.trapz2026-reset-btn:hover{background:#c62828;transform:translateY(-2px)}.trapz2026-print-btn{flex:1;padding:14px;border:none;border-radius:12px;font-weight:700!important;font-size:16px;cursor:pointer;transition:.2s;background:#607d8b;color:#fff}.trapz2026-print-btn:hover{background:#455a64;transform:translateY(-2px)}.trapz2026-copy-btn{flex:1;padding:14px;border:none;border-radius:12px;font-weight:700!important;font-size:16px;cursor:pointer;transition:.2s;background:#4caf50;color:#fff}.trapz2026-copy-btn:hover{background:#388e3c;transform:translateY(-2px)}.trapz2026-copy-btn.copied{background:#ff9800}@media print{.no-print,.trapz2026-card-header,.trapz2026-info-box,.trapz2026-input-section,.trapz2026-btn-group,#reset-btn{display:none!important}.trapz2026-container{padding:0!important;margin:0!important;width:100%!important}.trapz2026-card{box-shadow:none!important;border:none!important}.trapz2026-result-container{margin-top:0!important;padding:0!important;box-shadow:none!important}.trapz2026-result-card{border:1px solid #ddd!important;break-inside:avoid}.trapz2026-result-card.trapz2026-primary{background:#f0f7ff!important;color:#1976d2!important;-webkit-print-color-adjust:exact}.trapz2026-visualization-section,.trapz2026-formula-visual,.trapz2026-calculation-steps{break-inside:avoid;page-break-inside:avoid}}.trapz2026-result-container{margin-top:30px;background:#fff;padding:24px;border-radius:16px;box-shadow:0 8px 20px rgb(0 0 0 / .1)}.trapz2026-result-container.trapz2026-hidden{display:none}.trapz2026-result-container h3{font-size:22px;color:#1976d2;margin:0 0 20px 0;text-align:center;font-weight:700}.trapz2026-results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.trapz2026-result-card{background:#f5f5f5;padding:20px;border-radius:12px;text-align:center;transition:all 0.3s;box-shadow:0 2px 8px rgb(0 0 0 / .08)}.trapz2026-result-card.trapz2026-primary{background:linear-gradient(135deg,#1976d2 0%,#1565c0 100%);color:#fff;transform:scale(1.05)}.trapz2026-result-card:hover{transform:translateY(-4px);box-shadow:0 6px 16px rgb(0 0 0 / .15)}.trapz2026-result-title{font-size:13px;font-weight:600!important;margin-bottom:8px;opacity:.9}.trapz2026-result-value{font-size:32px;font-weight:700!important;margin-bottom:4px}.trapz2026-result-unit{font-size:14px;font-weight:500!important;opacity:.8}.trapz2026-breakdown-section{background:#e3f2fd;padding:20px;border-radius:12px;margin-bottom:20px}.trapz2026-breakdown-section h4{margin:0 0 12px 0;font-size:16px;color:#0d47a1;font-weight:600}.trapz2026-properties-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}.trapz2026-property-item{display:flex;justify-content:space-between;padding:10px 14px;background:#fff;border-radius:8px;border-left:4px solid #1976d2}.trapz2026-prop-label{font-size:13px;color:#555;font-weight:500!important}.trapz2026-prop-value{font-size:14px;color:#1976d2;font-weight:700!important}.trapz2026-calculation-steps{background:#f3e5f5;padding:20px;border-radius:12px;margin-bottom:20px}.trapz2026-calculation-steps h4{margin:0 0 12px 0;font-size:16px;color:#4a148c;font-weight:600}.trapz2026-steps-content{font-size:13px;color:#6a1b9a;line-height:1.8;font-weight:normal!important}.trapz2026-steps-content p{margin:8px 0;font-weight:normal!important}.trapz2026-steps-content strong{color:#4a148c;font-weight:700!important}.trapz2026-steps-content em{font-style:italic;font-weight:normal!important}.trapz2026-visualization-section{background:linear-gradient(135deg,#e3f2fd 0%,#bbdefb 100%);padding:20px;border-radius:12px;margin-bottom:20px;box-shadow:0 4px 12px rgb(0 0 0 / .1)}.trapz2026-visualization-section h4{margin:0 0 16px 0;font-size:16px;color:#0d47a1;font-weight:600;text-align:center}.trapz2026-svg-container{background:#fff;border-radius:12px;padding:16px;box-shadow:0 2px 8px rgb(0 0 0 / .1);margin-bottom:12px;position:relative;overflow:visible}.trapz2026-visual-info{background:rgb(255 255 255 / .8);padding:12px;border-radius:8px;border-left:4px solid #1976d2}.trapz2026-visual-info p{margin:0;font-size:13px;color:#0d47a1;line-height:1.6}.trapz2026-visual-info strong{font-weight:700!important}#trapezoid-visual-svg{overflow:visible}#trapezoid-visual-svg text{font-family:'Poppins',Arial,sans-serif;user-select:none}#trapezoid-visual-svg .dimension-label{font-size:14px;font-weight:600;fill:#1976d2}#trapezoid-visual-svg .angle-label{font-size:12px;font-weight:600;fill:#e65100}#trapezoid-visual-svg .side-label{font-size:13px;font-weight:600;fill:#0277bd}#visual-trapezoid{transition:all 0.3s ease;cursor:pointer}#visual-trapezoid:hover{fill:url(#trapzFillGrad);filter:url(#dropShadow) brightness(1.1);stroke-width:4}@keyframes fadeInScale{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.trapz2026-visualization-section{animation:fadeInScale 0.5s ease-out}.trapz2026-formula-visual{background:linear-gradient(135deg,#fff3e0 0%,#ffe0b2 100%);padding:20px;border-radius:12px;margin-bottom:20px;box-shadow:0 4px 12px rgb(0 0 0 / .1)}.trapz2026-formula-visual h4{margin:0 0 16px 0;font-size:16px;color:#e65100;font-weight:600;text-align:center}.trapz2026-formula-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}.trapz2026-formula-card{background:#fff;padding:16px;border-radius:10px;text-align:center;box-shadow:0 2px 8px rgb(0 0 0 / .1);transition:all 0.3s;border:2px solid #fff0}.trapz2026-formula-card:hover{transform:translateY(-4px);box-shadow:0 6px 16px rgb(0 0 0 / .15);border-color:#ff9800}.trapz2026-formula-icon{font-size:32px;margin-bottom:8px}.trapz2026-formula-title{font-size:14px;font-weight:600!important;color:#e65100;margin-bottom:8px}.trapz2026-formula-equation{font-size:16px;font-weight:700!important;color:#f57c00;margin-bottom:6px;font-family:'Courier New',monospace}.trapz2026-formula-desc{font-size:11px;color:#666;line-height:1.4}.trapz2026-educational-info{background:linear-gradient(135deg,#e8f5e9 0%,#c8e6c9 100%);padding:20px;border-radius:12px;margin-bottom:20px}.trapz2026-educational-info h4{margin:0 0 12px 0;font-size:16px;color:#2e7d32;font-weight:600}.trapz2026-educational-info p{margin:8px 0;font-size:13px;color:#1b5e20;line-height:1.8;font-weight:normal!important}.trapz2026-educational-info strong{font-weight:700!important}.trapz2026-educational-info ul{margin:8px 0;padding-left:24px}.trapz2026-educational-info li{margin:6px 0;font-size:13px;color:#1b5e20;line-height:1.6}.trapz2026-comparison-table{background:#fff8e1;padding:20px;border-radius:12px;margin-bottom:20px}.trapz2026-comparison-table h4{margin:0 0 16px 0;font-size:16px;color:#f57c00;font-weight:600}.trapz2026-comparison-table table{width:100%;border-collapse:collapse}.trapz2026-comparison-table th,.trapz2026-comparison-table td{padding:10px;text-align:left;border-bottom:1px solid #ffe082;font-size:13px}.trapz2026-comparison-table th{background:#ffecb3;color:#e65100;font-weight:600!important}.trapz2026-comparison-table td{color:#e65100;font-weight:normal!important}.trapz2026-hidden{display:none!important}@media(max-width:768px){.trapz2026-container{padding:0!important}.trapz2026-input-row{flex-direction:column;gap:16px}.trapz2026-input-group{min-width:100%}.trapz2026-input-group input,.trapz2026-input-group select{font-size:16px!important;padding:14px 16px;height:auto!important}.trapz2026-unit-input{display:flex;gap:8px}.trapz2026-unit-input input{width:65%!important;flex:2}.trapz2026-unit-input select{width:35%!important;flex:1}.trapz2026-results-grid{grid-template-columns:1fr;gap:12px}.trapz2026-btn-group{flex-direction:column;gap:16px}.trapz2026-calculate-btn,.trapz2026-reset-btn{padding:16px;font-size:18px}.trapz2026-card-header h2{font-size:22px}.trapz2026-result-value{font-size:28px}.trapz2026-comparison-table{overflow-x:auto;-webkit-overflow-scrolling:touch;display:block}.trapz2026-checkbox-option{padding:14px}.trapz2026-method-selector{grid-template-columns:1fr 1fr;gap:10px}.trapz2026-method-title{font-size:13px}.trapz2026-method-desc{font-size:10px}.trapz2026-properties-grid{grid-template-columns:1fr}.trapz2026-coord-inputs{flex-direction:column;gap:10px}.trapz2026-formula-cards{grid-template-columns:1fr}.trapz2026-formula-card{padding:14px}#trapezoid-visual-svg{height:300px}}