.bfc_container{margin:0 auto}.bfc_main_content{display:flex;flex-direction:column;gap:50px}.bfc_calculator_section,.bfc_education_section{}.bfc_section_title{}.bfc_row{display:flex;align-items:center;margin-bottom:25px;gap:20px;padding:20px;background:var(--comment-bg);border-radius:15px;border:1px solid var(--border-sidebar-color);box-shadow:0 2px 8px rgba(0,0,0,0.05);transition:all 0.3s ease;position:relative}.bfc_input_group{display:flex;flex-direction:column;flex:1;min-width:0}.bfc_input_group.pieces{flex:0 0 80px}.bfc_input_group.dimension{flex:1;min-width:140px}.bfc_label{font-size:12px;font-weight:600;color:var(--description-color);margin-bottom:6px;text-transform:uppercase;letter-spacing:0.8px}.bfc_input_container{display:flex;align-items:center;gap:10px}.bfc_integrated_input{display:flex;align-items:center;border:1px solid var(--border-sidebar-color);border-radius:12px;overflow:hidden;transition:all 0.3s ease;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.bfc_integrated_input:focus-within{}.bfc_integrated_input .bfc_input{border:none;border-radius:0;background:var(--comment-bg);box-shadow:none;flex:1;min-width:0}.bfc_integrated_input .bfc_input:focus{border:none;box-shadow:none;transform:none}.bfc_integrated_input .bfc_unit_select{border:none;border-radius:0;background:var(--search-bg);box-shadow:none;border-left:1px solid var(--border-sidebar-color);min-width:60px;padding:12px 8px}.bfc_integrated_input .bfc_unit_select:focus{border:none;border-left:1px solid var(--border-sidebar-color);box-shadow:none}.bfc_integrated_input .bfc_unit_select option{background:var(--card-bg);color:var(--text-color);padding:8px 12px}.bfc_pieces_input{width:100%}.bfc_input{flex:1;padding:14px 16px;border:1px solid var(--border-sidebar-color);border-radius:12px;font-size:16px;background:var(--card-bg);color:var(--text-color);transition:all 0.3s ease;outline:none;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.bfc_input:focus{border-color:var(--primary-color)}.bfc_input::-webkit-outer-spin-button,.bfc_input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.bfc_input[type=number]{-moz-appearance:textfield}.bfc_price_input::-webkit-outer-spin-button,.bfc_price_input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.bfc_price_input[type=number]{-moz-appearance:textfield}.bfc_unit_select{padding:12px 16px;border:2px solid var(--border-sidebar-color);border-radius:10px;background:var(--card-bg);color:var(--text-color);font-size:14px;min-width:100px;cursor:pointer;transition:all 0.3s ease;outline:none}.bfc_unit_select:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(7,193,96,0.1)}.bfc_unit_select option{background:var(--card-bg);color:var(--text-color);padding:8px 12px}.bfc_dual_input{display:flex;gap:8px;align-items:center;flex:1}.bfc_dual_input .bfc_input{width:60px;text-align:center;border:1px solid var(--border-sidebar-color);border-radius:6px;padding:8px 4px}.bfc_integrated_input .bfc_dual_input .bfc_input{border:1px solid var(--border-sidebar-color);background:var(--card-bg)}.bfc_dual_separator{color:var(--text-color);font-size:14px}.bfc_price_container{display:flex;align-items:center;gap:10px}.bfc_currency_symbol{font-size:18px;font-weight:bold;color:var(--primary-color)}.bfc_price_input{flex:1;padding:14px 16px;border:1px solid var(--border-sidebar-color);border-radius:12px;font-size:16px;color:var(--text-color);transition:all 0.3s ease;outline:none;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.bfc_price_input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(7,193,96,0.1)}.bfc_price_unit{font-size:14px;color:var(--description-color);white-space:nowrap}.bfc_price_row{display:flex;justify-content:center;margin-bottom:25px}.bfc_price_section{background:var(--comment-bg);border-radius:15px;border:1px solid var(--border-sidebar-color);box-shadow:0 2px 8px rgba(0,0,0,0.05);padding:20px;max-width:400px;width:100%}.bfc_button_group{display:flex;gap:20px;margin-top:35px;flex-wrap:wrap;justify-content:center}.bfc_button{padding:16px 32px;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:all 0.3s ease;outline:none;text-transform:uppercase;letter-spacing:0.5px;position:relative;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.bfc_button:before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:left 0.5s}.bfc_button:hover:before{left:100%}.bfc_button.highlight-button{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:white;min-width:150px}.bfc_button.highlight-button:hover{box-shadow:0 10px 25px rgba(7,193,96,0.3)}.bfc_button.highlight-green{background:var(--secondary-color);color:white;min-width:120px}.bfc_button.highlight-green:hover{background:var(--primary-color)}.bfc_button.normal-button{background:var(--card-bg);color:var(--text-color);border:2px solid var(--border-sidebar-color);min-width:120px}.bfc_button.normal-button:hover{background:var(--search-bg);border-color:var(--primary-color)}.bfc_remove_button{position:absolute;top:8px;right:8px;width:24px;height:24px;padding:0;background:#ff4757;color:white;border:none;border-radius:50%;cursor:pointer;font-size:10px;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center;z-index:2}.bfc_remove_button:hover{background:#ff3838;transform:scale(1.1)}.bfc_results_container{margin-top:30px;padding:25px;background:var(--card-bg);border-radius:20px;border:2px solid var(--primary-color);color:var(--text-color);display:none;animation:slideIn 0.5s ease-out}@keyframes slideIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.bfc_results_title{font-size:20px;font-weight:600;margin-bottom:20px;text-align:center;color:var(--primary-color)}.bfc_result_item{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;padding:15px;background:var(--search-bg);border-radius:12px;border:1px solid var(--border-sidebar-color)}.bfc_result_label{font-weight:500;font-size:16px;color:var(--text-color)}.bfc_result_value{font-size:20px;font-weight:700;text-align:right;color:var(--primary-color)}.bfc_calculation_steps{margin-top:20px;padding:20px;background:var(--image-bg);border-radius:15px;border:1px solid var(--border-sidebar-color)}.bfc_calculation_steps h4{margin-bottom:15px;font-size:18px;color:var(--text-color)}.bfc_calculation_step{margin-bottom:10px;padding:10px;background:var(--card-bg);border-radius:8px;font-family:monospace;font-size:14px;color:var(--text-color);border:1px solid var(--border-sidebar-color)}.bfc_education_content{color:var(--text-color);line-height:1.6}.bfc_education_content h3{color:var(--primary-color);font-size:20px;margin-bottom:15px;font-weight:600}.bfc_education_content p{margin-bottom:15px;color:var(--description-color)}.bfc_formula_container{background:var(--comment-bg);border:1px solid var(--border-sidebar-color);padding:20px;border-radius:15px;margin:20px 0;display:flex;flex-direction:column;gap:15px}.bfc_formula{font-family:monospace;font-size:16px;font-weight:bold;color:var(--text-color);text-align:center;padding:10px;background:var(--card-bg);border-radius:8px;margin:10px 0}.bfc_example_step{margin:10px 0;padding:12px;background:var(--search-bg);border-radius:10px;border-left:3px solid var(--secondary-color)}.bfc_highlight_text{color:var(--primary-color);font-weight:600}@media (max-width:768px){.bfc_container{padding:15px}.bfc_row{flex-direction:column;gap:15px;padding:20px 15px 35px 15px}.bfc_input_group.pieces,.bfc_input_group.dimension{flex:1;width:100%}.bfc_button_group{justify-content:stretch}.bfc_input_container{width:100%}.bfc_button_group{flex-direction:column}.bfc_button{width:100%}.bfc_remove_button{top:5px;right:5px}.bfc_price_section{max-width:none !important;width:90% !important}}[data-theme="dark"] .bfc_calculator_section,[data-theme="dark"] .bfc_education_section{background:var(--card-bg);border-color:var(--border-sidebar-color)}[data-theme="dark"] .bfc_input,[data-theme="dark"] .bfc_unit_select,[data-theme="dark"] .bfc_price_input{border-color:var(--border-sidebar-color)}[data-theme="dark"] .bfc_integrated_input{background:var(--search-bg);border-color:var(--border-sidebar-color)}[data-theme="dark"] .bfc_integrated_input .bfc_input{background:var(--card-bg)}[data-theme="dark"] .bfc_integrated_input .bfc_unit_select{background:transparent;border-left-color:var(--border-sidebar-color)}[data-theme="dark"] .bfc_results_container{background:var(--card-bg)}[data-theme="dark"] .bfc_result_item{background:var(--search-bg);border-color:var(--border-sidebar-color)}[data-theme="dark"] .bfc_calculation_steps{background:var(--image-bg);border-color:var(--border-sidebar-color)}[data-theme="dark"] .bfc_calculation_step{background:var(--card-bg);border-color:var(--border-sidebar-color)}[data-theme="dark"] .bfc_unit_select option{background:var(--card-bg);color:var(--text-color)}[data-theme="dark"] .bfc_integrated_input .bfc_unit_select option{background:var(--card-bg);color:var(--text-color)}