:root{--win-gradient-bg:linear-gradient(135deg,rgba(0,0,0,0.05) 0%,rgba(0,0,0,0.02) 100%);--win-text-secondary:rgba(60,60,67,0.6);--win-text-secondary-dark:rgba(235,235,245,0.6)}[data-theme="dark"]{--win-text-secondary:rgba(235,235,245,0.6)}[data-theme="dark"] .win_formula_container{background:var(--card-bg)}[data-theme="dark"] .win_example_container{background:var(--card-bg)}[data-theme="dark"] .win_option_item.selected{background:var(--card-bg);box-shadow:var(--shadow)}[data-theme="dark"] .win_option_item.selected:hover{box-shadow:var(--shadow)}[data-theme="dark"] .win_option_item:not(.selected) .win_option_checkbox{border-color:var(--primary-color)}[data-theme="dark"] .win_option_item:hover:not(.selected) .win_option_checkbox{border-color:var(--primary-color)}[data-theme="dark"] .win_formula_fraction .numerator{border-bottom-color:var(--text-color)}[data-theme="dark"] .win_input_field:focus{box-shadow:var(--shadow)}[data-theme="dark"] .win_result_card{box-shadow:var(--shadow)}.win_calculator_container{display:grid;grid-template-columns:1fr;gap:1.5rem;margin:0 auto}.win_calculator_left{background:var(--comment-bg);border-radius:10px;padding:2rem;border:1px solid var(--border-sidebar-color);box-shadow:var(--shadow);backdrop-filter:blur(20px);transition:all 0.3s ease}[data-theme="dark"] .win_calculator_left{box-shadow:var(--shadow)}.win_calculator_right{background:var(--comment-bg);border-radius:10px;padding:2rem;border:1px solid var(--border-sidebar-color);box-shadow:var(--shadow);backdrop-filter:blur(20px);transition:all 0.3s ease}[data-theme="dark"] .win_calculator_right{box-shadow:var(--shadow)}.win_input_group{margin-bottom:1.5rem}.win_input_row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem;margin-bottom:1.5rem}.win_input_row .win_input_group{margin-bottom:0}.win_input_label{display:block;font-weight:600;margin-bottom:0.5rem;color:var(--text-color);font-size:1rem}.win_input_field{width:100%;padding:1rem 1.5rem;border:2px solid var(--border-sidebar-color);border-radius:12px;font-size:1rem;background:var(--card-bg);color:var(--text-color);transition:all 0.3s ease;outline:none}.win_input_field::-webkit-outer-spin-button,.win_input_field::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.win_input_field[type=number]{-moz-appearance:textfield}.win_input_field:focus{border-color:var(--primary-color)}.win_options_container{margin:2rem 0}.win_options_grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0.75rem;max-width:600px}.win_option_item{padding:0.75rem 1rem;border:1px solid var(--border-sidebar-color);border-radius:8px;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);background:var(--card-bg);color:var(--text-color);font-weight:500;position:relative;display:flex;align-items:center;justify-content:space-between;user-select:none}.win_option_item:hover{transform:translateY(-1px);box-shadow:var(--shadow);border-color:var(--primary-color)}.win_option_item.selected{background:var(--card-bg);border-color:var(--primary-color);color:var(--text-color);box-shadow:var(--shadow)}.win_option_item.selected:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.win_option_text{flex:1;text-align:center;color:var(--text-color)}.win_option_checkbox{width:18px;height:18px;border:1px solid var(--border-sidebar-color);border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);background:transparent;flex-shrink:0}.win_option_item:hover:not(.selected) .win_option_checkbox{border-color:var(--primary-color);transform:scale(1.05)}.win_option_item.selected .win_option_checkbox{background:transparent;border:none;transform:scale(1.2)}.win_option_checkbox .win_check_icon{font-size:14px;color:var(--primary-color);opacity:0;transform:scale(0) rotate(-90deg);transition:all 0.3s cubic-bezier(0.68,-0.55,0.265,1.55)}.win_option_item.selected .win_option_checkbox .win_check_icon{opacity:1;transform:scale(1) rotate(0deg)}.win_option_item:active{transform:translateY(0)}.win_option_item.selected .win_option_text{font-weight:500;color:var(--primary-color)}.win_buttons_container{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2rem;max-width:400px}.win_button{padding:1rem 2rem;border:none;border-radius:12px;font-size:1.2rem;font-weight:600;cursor:pointer;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center;gap:0.5rem;outline:none;position:relative;overflow:hidden}.win_button:hover{transform:translateY(-2px)}.win_button:active{transform:translateY(0)}.win_results_container{margin-top:2rem;padding:0;opacity:0;transform:translateY(20px);transition:all 0.5s ease}.win_results_container.show{opacity:1;transform:translateY(0)}.win_result_card{background-color:var(--card-bg);border:2px solid var(--border-sidebar-color);border-radius:20px;padding:2rem;margin-bottom:1.5rem;animation:slideInUp 0.5s ease;box-shadow:var(--shadow);position:relative;overflow:hidden}.win_result_card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;z-index:1}.win_result_item{display:flex;justify-content:space-between;align-items:center;padding:1rem 0;border-bottom:1px solid var(--border-sidebar-color);position:relative;z-index:2}.win_result_item:last-child{border-bottom:none;font-weight:700;font-size:1.1rem;margin-top:1rem;padding-top:1.5rem}.win_result_label{font-weight:600;color:var(--text-color);font-size:1rem}.win_result_value{font-weight:700;font-size:1.3rem;color:var(--primary-color);text-shadow:0 1px 3px rgba(0,0,0,0.1)}.win_steps_container{margin-top:1.5rem;padding:1.5rem;background:var(--card-bg);border:1px solid var(--border-sidebar-color);border-radius:16px;animation:fadeIn 0.6s ease 0.2s both}.win_steps_title{font-weight:600;margin-bottom:1rem;color:var(--text-color);font-size:1.1rem}.win_step_item{margin-bottom:0.5rem;color:var(--win-text-secondary);line-height:1.5}.win_knowledge_container{padding:0}.win_knowledge_title{font-size:1.3rem;font-weight:700;margin-bottom:1.5rem;color:var(--text-color);text-align:center}.win_knowledge_section{margin-bottom:2rem;border-radius:16px;transition:all 0.3s ease}.win_knowledge_section:hover{transform:translateY(-2px)}.win_section_title{font-size:1.1rem;font-weight:600;margin-bottom:1rem;color:var(--text-color)}.win_formula_container{background:var(--card-bg);padding:1rem;border-radius:12px;margin:0.75rem 0;border:1px solid var(--border-sidebar-color)}.win_formula_text{font-family:'SF Mono','Monaco','Cascadia Code',monospace;font-weight:600;color:var(--text-color);font-size:0.95rem}.win_formula_fraction{display:inline-block;text-align:center;vertical-align:middle;margin:0 0.5rem}.win_formula_fraction .numerator{display:block;border-bottom:2px solid var(--text-color);padding-bottom:2px;margin-bottom:2px}.win_formula_fraction .denominator{display:block;padding-top:2px}.win_formula_equation{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:0.5rem;font-size:1rem}.win_example_container{background:var(--card-bg);padding:1rem;border-radius:12px;margin:0.75rem 0;border:1px solid var(--border-sidebar-color)}.win_formula_label{margin-bottom:0.5rem;color:var(--text-color);font-size:1rem}.win_example_label{margin-bottom:0.5rem;color:var(--text-color);font-size:1rem}.win_example_text{color:var(--win-text-secondary);line-height:1.5;margin-bottom:0.5rem}.win_calculation_text{font-family:'SF Mono','Monaco','Cascadia Code',monospace;font-weight:600;color:var(--text-color);font-size:0.95rem;margin-top:0.5rem}.win_calculation_text .win_formula_equation{font-size:0.9rem}.win_calculation_text .win_formula_fraction{margin:0 0.3rem}@keyframes slideInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@media (max-width:768px){.win_calculator_container{gap:1rem}.win_calculator_left,.win_calculator_right{padding:1.5rem}.win_input_row{grid-template-columns:1fr 1fr;gap:0.5rem}.win_buttons_container{grid-template-columns:1fr;max-width:300px}.win_options_grid{grid-template-columns:1fr;gap:1rem;max-width:400px}.win_formula_equation{font-size:0.9rem;justify-content:flex-start}.win_formula_fraction{margin:0 0.3rem}}@media (max-width:480px){.win_input_row{grid-template-columns:1fr;gap:0.5rem}.win_calculator_left,.win_calculator_right{padding:1rem}.win_options_grid{max-width:none}.win_buttons_container{max-width:none}.win_formula_equation{font-size:0.8rem;flex-direction:column;align-items:flex-start;gap:0.5rem}.win_formula_fraction{margin:0.2rem 0}}.fa-check{width:1em;height:1em;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3E%3Cpath d='M438.6 105.4c12.5 12.5 12.5 32.8 0 45.3l-256 256c-12.5 12.5-32.8 12.5-45.3 0l-128-128c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0L160 338.7 393.4 105.4c12.5-12.5 32.8-12.5 45.3 0z'/%3E%3C/svg%3E") center/contain no-repeat;background:currentColor}