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.faq-icon{color:var(--text-accent);background:#10b98126;transform:rotate(45deg)}.faq-answer{max-height:0;transition:max-height var(--transition-slow), padding var(--transition-slow);overflow:hidden}.faq-answer-inner{padding:0 var(--space-6) var(--space-6);font-size:var(--font-size-sm);color:var(--text-secondary);line-height:1.8}.faq-item.open .faq-answer,.faq-item[open] .faq-answer,details[open] .faq-answer{max-height:1000px}.form-card{max-width:600px;padding:var(--space-8);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);box-shadow:var(--shadow-card);margin:0 auto}.form-group{margin-bottom:var(--space-5)}.form-label{font-size:var(--font-size-sm);color:var(--text-secondary);margin-bottom:var(--space-2);font-weight:600;display:block}.form-input{width:100%;padding:var(--space-4) var(--space-5);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);transition:all var(--transition-base);background:#0f172a99;outline:none}.form-input:focus{border-color:var(--accent-start);box-shadow:0 0 0 3px #10b9811a}.form-status{margin-top:var(--space-4);font-size:var(--font-size-sm);text-align:center;font-weight:500}.form-status.success{color:#34d399}.form-status.error{color:#f87171}.locale-switcher-wrapper{align-items:center;gap:var(--space-2);margin-top:var(--space-4);display:inline-flex}.locale-switcher{background:var(--bg-secondary);border:1px solid var(--border-subtle);color:var(--text-primary);padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-family:var(--font-family);font-size:var(--font-size-xs);cursor:pointer;transition:all var(--transition-base);outline:none}.locale-switcher:focus{border-color:var(--accent-start)}[dir=rtl]{text-align:right}[dir=rtl] .navbar .container,[dir=rtl] .nav-links{flex-direction:row-reverse}[dir=rtl] .input-field{padding-right:var(--space-6);padding-left:70px}[dir=rtl] .input-suffix{right:auto;left:var(--space-5)}[dir=rtl] .faq-question{text-align:right;flex-direction:row-reverse}[dir=rtl] .faq-icon{margin-left:0;margin-right:var(--space-4)}.footer{padding:var(--space-12) 0;border-top:1px solid var(--border-subtle);text-align:center;background:#0f172a66}.footer-content{align-items:center;gap:var(--space-6);flex-direction:column;display:flex}.footer-text{font-size:var(--font-size-sm);color:var(--text-tertiary);max-width:500px}.footer-links{gap:var(--space-6);list-style:none;display:flex}.footer-links a{font-size:var(--font-size-sm);color:var(--text-tertiary)}.footer-links a:hover{color:var(--text-accent)}.social-links{gap:var(--space-4);margin-top:var(--space-2);display:flex}.social-icon{color:var(--text-tertiary);transition:color var(--transition-fast);font-size:20px}.social-icon:hover{color:var(--text-accent)}@keyframes swapRotate{0%{transform:rotate(0)scale(1)}50%{transform:rotate(180deg)scale(1.2)}to{transform:rotate(360deg)scale(1)}}@keyframes cubeFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes cubeFacePulse{0%,to{opacity:1}50%{opacity:.7}}@keyframes cubeEdgeDraw{0%{stroke-dashoffset:300px}to{stroke-dashoffset:0}}@keyframes cubeLabelFadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes dimLineDraw{0%{stroke-dashoffset:200px}to{stroke-dashoffset:0}}@keyframes dimTextFade{0%{opacity:0}to{opacity:1}}.cube-diagram-wrapper{overflow:visible}.cube-svg .cube-group{transform-origin:50%;animation:4s ease-in-out infinite cubeFloat}.cube-svg .cube-face{animation:5s ease-in-out infinite cubeFacePulse}.cube-svg .cube-face-top{animation-delay:.3s}.cube-svg .cube-face-right{animation-delay:.6s}.cube-svg .cube-edge-glow{stroke-dasharray:300;stroke-dashoffset:300px;opacity:.5;animation:1.5s ease-out forwards cubeEdgeDraw}.cube-svg .cube-edge-glow:nth-child(5){animation-delay:.2s}.cube-svg .cube-edge-glow:nth-child(6){animation-delay:.4s}.cube-svg .cube-label-main{animation:.8s ease-out .6s both cubeLabelFadeIn}.cube-svg .cube-label-sub{animation:.8s ease-out .9s both cubeLabelFadeIn}.cube-svg .dim-line{stroke-dasharray:200;stroke-dashoffset:200px;animation:1s ease-out 1.2s forwards dimLineDraw}.cube-svg .dim-text{animation:.6s ease-out 1.8s both dimTextFade}.cube-svg .small-cube{transition:opacity .4s}.cube-diagram-wrapper:hover .cube-svg .small-cube{opacity:1!important}@media (width<=768px){.hero h1{font-size:var(--font-size-3xl)}.hero-subtitle{font-size:var(--font-size-base)}.calculator-card{padding:var(--space-6)}.input-field{font-size:var(--font-size-xl);padding:var(--space-4) var(--space-5);padding-right:60px}.result-breakdown{gap:var(--space-3);grid-template-columns:1fr 1fr}.steps-grid{gap:var(--space-5);grid-template-columns:1fr}.nav-links{display:none}.section{padding:var(--space-12) 0}.formula-display{font-size:var(--font-size-2xl)}.action-row{flex-direction:column}}@media (width<=480px){.hero h1{font-size:var(--font-size-2xl)}.calculator-card{padding:var(--space-5)}.input-field{font-size:var(--font-size-lg)}.result-breakdown{grid-template-columns:1fr}.reference-table thead th,.reference-table tbody td{padding:var(--space-3) var(--space-4)}}.toc-card{max-width:720px;padding:var(--space-8);background:var(--bg-card);backdrop-filter:blur(16px);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);box-shadow:var(--shadow-card);margin:0 auto}.toc-card h2{font-size:var(--font-size-xl);margin-bottom:var(--space-5);padding-bottom:var(--space-3);border-bottom:1px solid var(--border-subtle);align-items:center;gap:var(--space-3);color:var(--text-accent);font-weight:700;display:flex}.toc-list{gap:var(--space-2) var(--space-6);counter-reset:toc;grid-template-columns:1fr 1fr;padding:0;list-style:none;display:grid}.toc-list li{counter-increment:toc}.toc-list a{align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:var(--font-size-sm);color:var(--text-secondary);transition:all var(--transition-fast);font-weight:500;display:flex}.toc-list a:before{content:counter(toc, decimal-leading-zero);font-size:var(--font-size-xs);color:var(--text-tertiary);min-width:22px;font-weight:700}.toc-list a:hover{color:var(--text-accent);background:#10b9810f}.content-section{max-width:800px;padding:var(--space-16) var(--space-6);border-bottom:1px solid var(--border-subtle);margin:0 auto;scroll-margin-top:80px}.content-section:last-of-type{border-bottom:none}.content-section h2{font-size:var(--font-size-2xl);margin-bottom:var(--space-4);color:var(--text-primary);align-items:center;gap:var(--space-3);font-weight:700;display:flex}.content-section h2 .section-emoji{font-size:var(--font-size-2xl)}.content-section h3{font-size:var(--font-size-lg);margin-top:var(--space-8);margin-bottom:var(--space-3);color:var(--text-primary);font-weight:600}.content-section p{font-size:var(--font-size-base);color:var(--text-secondary);margin-bottom:var(--space-4);max-width:72ch;line-height:1.8}.content-section ul,.content-section ol{padding-left:var(--space-6);margin-bottom:var(--space-5)}.content-section li{font-size:var(--font-size-sm);color:var(--text-secondary);margin-bottom:var(--space-2);line-height:1.8}.content-section li::marker{color:var(--text-accent)}.snippet-answer{font-size:var(--font-size-lg);color:var(--text-primary);border-left:3px solid var(--accent-start);padding:var(--space-4) var(--space-6);border-radius:0 var(--radius-md) var(--radius-md) 0;margin-bottom:var(--space-6);background:#10b9810f;font-weight:600;line-height:1.6}.entity-tag{padding:2px var(--space-2);border-radius:var(--radius-sm);font-size:var(--font-size-xs);color:#67e8f9;white-space:nowrap;vertical-align:baseline;background:#06b6d414;border:1px solid #06b6d426;align-items:center;gap:4px;font-weight:600;display:inline-flex}.interactive-diagram{width:100%;margin:var(--space-6) 0;padding:var(--space-6);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);position:relative;overflow:hidden}.interactive-diagram svg{width:100%;height:auto;display:block}.diagram-label{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.06em;color:var(--text-tertiary);text-align:center;margin-top:var(--space-3);font-weight:600}.comparison-bars{gap:var(--space-4);margin:var(--space-6) 0;flex-direction:column;display:flex}.comparison-bar{align-items:center;gap:var(--space-4);display:flex}.comparison-bar-label{min-width:80px;font-size:var(--font-size-sm);color:var(--text-secondary);text-align:right;font-weight:600}.comparison-bar-track{border-radius:var(--radius-full);background:#0f172a80;flex:1;height:32px;position:relative;overflow:hidden}.comparison-bar-fill{border-radius:var(--radius-full);height:100%;padding-right:var(--space-3);font-size:var(--font-size-xs);color:var(--bg-primary);justify-content:flex-end;align-items:center;font-weight:700;transition:width 1s cubic-bezier(.34,1.56,.64,1);display:flex}.comparison-bar-fill.meter-fill{background:var(--accent-gradient)}.comparison-bar-fill.foot-fill{background:linear-gradient(135deg,#8b5cf6,#a78bfa)}.mini-calc{padding:var(--space-6);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);margin:var(--space-6) 0}.mini-calc-header{font-size:var(--font-size-sm);color:var(--text-accent);text-transform:uppercase;letter-spacing:.06em;margin-bottom:var(--space-4);align-items:center;gap:var(--space-2);font-weight:700;display:flex}.mini-calc-row{align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.mini-calc input{width:140px;padding:var(--space-3) var(--space-4);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-lg);transition:border-color var(--transition-fast);background:#0f172a99;outline:none;font-weight:600}.mini-calc input:focus{border-color:var(--accent-start)}.mini-calc-equals{font-size:var(--font-size-xl);color:var(--text-tertiary);font-weight:700}.mini-calc-result{font-size:var(--font-size-xl);color:var(--text-accent);min-width:120px;font-weight:700}.search-table-wrapper{margin:var(--space-6) 0}.search-table-input{width:100%;padding:var(--space-3) var(--space-5);border:1px solid var(--border-subtle);border-radius:var(--radius-lg) var(--radius-lg) 0 0;color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-sm);transition:border-color var(--transition-fast);background:#0f172a80;outline:none}.search-table-input::placeholder{color:var(--text-tertiary)}.search-table-input:focus{border-color:var(--accent-start)}.search-table-wrapper .table-wrapper{border-radius:0 0 var(--radius-xl) var(--radius-xl);border-top:none;max-height:500px;overflow-y:auto}.search-table-wrapper .table-wrapper::-webkit-scrollbar{width:6px}.search-table-wrapper .table-wrapper::-webkit-scrollbar-track{background:0 0}.search-table-wrapper .table-wrapper::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:var(--radius-full)}.callout-box{padding:var(--space-5) var(--space-6);border-radius:var(--radius-lg);margin:var(--space-5) 0;background:#10b9810f;border:1px solid #10b98126}.callout-box p{color:var(--text-primary)!important;font-size:var(--font-size-sm)!important;margin-bottom:0!important}.callout-box strong{color:var(--text-accent)}.cards-grid{gap:var(--space-5);margin:var(--space-6) 0;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));display:grid}.warning-card,.tip-card{padding:var(--space-5);border-radius:var(--radius-lg);border:1px solid var(--border-subtle);background:var(--bg-card);transition:all var(--transition-base)}.warning-card:hover,.tip-card:hover{box-shadow:var(--glow-accent);border-color:var(--border-accent);transform:translateY(-3px)}.warning-card{border-left:3px solid #f87171}.tip-card{border-left:3px solid var(--accent-start)}.warning-card .card-icon,.tip-card .card-icon{margin-bottom:var(--space-3);font-size:28px}.warning-card h4,.tip-card h4{font-size:var(--font-size-base);margin-bottom:var(--space-2);font-weight:600}.warning-card p,.tip-card p{font-size:var(--font-size-sm)!important;color:var(--text-secondary)!important;margin-bottom:0!important;line-height:1.6!important}.industry-grid{gap:var(--space-4);margin:var(--space-6) 0;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));display:grid}.industry-item{align-items:flex-start;gap:var(--space-3);padding:var(--space-4);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);transition:all var(--transition-base);display:flex}.industry-item:hover{border-color:var(--border-accent);transform:translateY(-2px)}.industry-item .ind-icon{border-radius:var(--radius-md);background:#10b98114;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:24px;display:flex}.industry-item h4{font-size:var(--font-size-sm);margin-bottom:2px;font-weight:600}.industry-item p{font-size:var(--font-size-xs)!important;color:var(--text-tertiary)!important;margin-bottom:0!important;line-height:1.5!important}.object-picker{gap:var(--space-3);margin:var(--space-5) 0;flex-wrap:wrap;display:flex}.object-picker-btn{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-full);color:var(--text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);cursor:pointer;transition:all var(--transition-fast);font-weight:500;display:flex}.object-picker-btn:hover,.object-picker-btn.active{border-color:var(--accent-start);color:var(--text-accent);background:#10b9811a}.object-result{padding:var(--space-5);border-radius:var(--radius-lg);margin-top:var(--space-3);min-height:80px;transition:all var(--transition-base);background:#0f172a66}.example-cards{gap:var(--space-4);margin:var(--space-5) 0;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));display:grid}.example-card{padding:var(--space-4);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);text-align:center;transition:all var(--transition-base)}.example-card:hover{border-color:var(--border-accent);box-shadow:var(--glow-accent);transform:translateY(-2px)}.example-card .ex-input{font-size:var(--font-size-lg);color:var(--text-primary);margin-bottom:var(--space-1);font-weight:700}.example-card .ex-arrow{color:var(--text-tertiary);font-size:var(--font-size-sm);margin-bottom:var(--space-1)}.example-card .ex-output{font-size:var(--font-size-lg);color:var(--text-accent);font-weight:700}.example-card .ex-detail{font-size:var(--font-size-xs);color:var(--text-tertiary);margin-top:var(--space-1)}.visual-grid{margin:var(--space-4) 0;grid-template-columns:repeat(10,1fr);gap:2px;max-width:300px;display:grid}.visual-grid .grid-cell{aspect-ratio:1;transition:background var(--transition-fast);background:#10b98126;border:1px solid #10b98133;border-radius:2px}.visual-grid .grid-cell.active{background:#10b98180}@media (width<=768px){.toc-list{grid-template-columns:1fr}.content-section{padding:var(--space-10) var(--space-4)}.content-section h2{font-size:var(--font-size-xl)}.mini-calc-row{flex-direction:column;align-items:stretch}.mini-calc input{width:100%}.comparison-bar-label{min-width:60px;font-size:var(--font-size-xs)}.cards-grid{grid-template-columns:1fr}.industry-grid{grid-template-columns:1fr 1fr}.example-cards{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.object-picker{gap:var(--space-2)}}@media (width<=480px){.toc-card{padding:var(--space-5)}.industry-grid{grid-template-columns:1fr}.example-cards{grid-template-columns:1fr 1fr}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}