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var(--border-color)}.tool-header h2{color:var(--text-primary);font-size:2rem;font-weight:700;margin-bottom:var(--spacing-sm);display:inline-flex;align-items:center;gap:var(--spacing-md)}.tool-header h2 i{color:var(--primary)}.tool-description{color:var(--text-secondary);font-size:1rem}.parameter-group{margin-bottom:var(--spacing-lg)}.parameter-group label{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-sm);font-weight:600;color:var(--text-primary)}.parameter-unit{font-size:.875rem;color:var(--text-tertiary);font-weight:400}.input-with-slider{display:flex;flex-direction:column;gap:var(--spacing-sm)}.input-with-slider input[type=number]{margin-bottom:0}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-md)}body.dark button[style*="background: white"],body.dark button[style*="background:#fff"],body.dark button[style*="background-color: white"]{background:var(--bg-secondary)!important;color:var(--text-primary)!important}body.dark button[style*="color: #6b7280"],body.dark button[style*="color:#6b7280"]{color:var(--text-secondary)!important}body.dark svg{color:var(--text-primary)}body.dark svg text{fill:var(--text-primary)!important}body.dark svg line[stroke="#333"],body.dark svg path[stroke="#333"]{stroke:var(--text-secondary)!important}body.dark input[style*="font-family: monospace"]{background:var(--bg-primary)!important;color:var(--text-primary)!important;border-color:var(--border-color)!important}body.dark div[style*="background: white"],body.dark div[style*="background:white"],body.dark div[style*="background-color: white"],body.dark div[style*="background-color:white"]{background:var(--bg-secondary)!important}body.dark .config-btn[style*="background: white"],body.dark .config-btn[style*="background:white"]{background:var(--bg-tertiary)!important;color:var(--text-primary)!important;border-color:var(--border-color)!important}body.dark .material-btn,body.dark .example-btn{background:var(--bg-secondary)!important;border-color:var(--border-color)!important;color:var(--text-primary)!important}body.dark .material-btn:hover,body.dark .example-btn:hover{background:var(--bg-tertiary)!important}body.dark svg text[fill="#fff"],body.dark svg text[fill=white],body.dark svg text[fill="#ffffff"]{fill:var(--text-primary)!important}body.dark svg circle[fill=white][stroke],body.dark svg circle[fill="#fff"][stroke],body.dark svg circle[fill="#ffffff"][stroke]{fill:var(--bg-primary)!important;stroke:var(--primary)!important}body.dark svg rect[fill=white][stroke],body.dark svg rect[fill="#fff"][stroke],body.dark svg rect[fill="#ffffff"][stroke]{fill:var(--bg-tertiary)!important}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}.input-group{margin-bottom:var(--spacing-lg)}.input-group>label{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm);font-weight:600;color:var(--text-primary)}.slider-with-input{display:flex;align-items:center;gap:var(--spacing-md);flex-wrap:wrap}.slider-with-input .slider,.slider-with-input input[type=range]{flex:1 1 140px;margin:0;min-width:120px}.slider-with-input .number-input,.slider-with-input input[type=number]{width:96px;flex:0 0 auto;margin:0;text-align:right}.number-input{padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-primary);font-size:.875rem;transition:all var(--transition-fast)}.unit{flex:0 0 auto;font-size:.875rem;font-weight:600;color:var(--text-tertiary);min-width:2.5rem}.result-grid,.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--spacing-md)}.result-icon{display:flex;align-items:center;justify-content:center;flex:0 0 auto;width:48px;height:48px;border-radius:var(--radius-md);background:var(--color-mathematiques);color:#fff;font-size:1.25rem;box-shadow:var(--shadow-sm)}.result-icon i{color:#fff}.result-card-highlight,.result-card.highlight{border-color:var(--primary);background:linear-gradient(135deg,#6366f11f,#8b5cf61f)}.info-card{padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-sm);background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-primary)}.btn{padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--radius-md);background:var(--primary);color:#fff;font-size:.875rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:var(--spacing-sm)}.btn:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.preset-btn,.material-btn,.example-btn,.config-btn{padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-primary);font-size:.8125rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:var(--spacing-sm)}.preset-btn:hover,.material-btn:hover,.example-btn:hover,.config-btn:hover{background:var(--bg-tertiary);border-color:var(--primary);transform:translateY(-1px)}.preset-btn.active,.material-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.matrix-input{width:100%;padding:var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-primary);color:var(--text-primary);text-align:center;font-size:.875rem;margin-bottom:0}.tool-container table,.data-table{width:100%;border-collapse:collapse;margin:var(--spacing-md) 0;font-size:.875rem;color:var(--text-primary)}.tool-container th,.tool-container td,.data-table th,.data-table td{padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);text-align:left}.tool-container thead th,.data-table thead th{background:var(--bg-tertiary);color:var(--text-primary);font-weight:600}.tool-container tbody tr:nth-child(2n),.data-table tbody tr:nth-child(2n){background:var(--bg-secondary)}.tool-container tbody tr.active-row,.data-table tbody tr.active-row{background:color-mix(in srgb,var(--primary) 14%,transparent)}.chart-container{position:relative;background:var(--bg-primary);border-radius:var(--radius-md);padding:var(--spacing-sm)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:var(--spacing-md)}.stat-tile{--accent: var(--primary);text-align:center;padding:var(--spacing-md);border-radius:var(--radius-md);background:color-mix(in srgb,var(--accent) 10%,transparent);border:1px solid color-mix(in srgb,var(--accent) 22%,transparent)}.stat-tile>i{color:var(--accent);font-size:1.125rem}.stat-tile .stat-label{font-size:.75rem;color:var(--text-tertiary);margin-top:var(--spacing-xs)}.stat-tile .stat-value{font-weight:700;color:var(--accent)}.accent-panel{--accent: var(--primary);padding:var(--spacing-md);border-radius:var(--radius-md);background:color-mix(in srgb,var(--accent) 6%,transparent);border:1px solid color-mix(in srgb,var(--accent) 25%,transparent)}.accent-panel>h4{color:var(--accent);margin-bottom:var(--spacing-md);display:flex;align-items:center;gap:var(--spacing-sm);font-size:.95rem;font-weight:600}.accent-readout{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);background:color-mix(in srgb,var(--accent, var(--primary)) 12%,transparent)}.stat-row{display:flex;justify-content:space-between;align-items:center;gap:var(--spacing-sm)}.stat-row+.stat-row{margin-top:var(--spacing-xs)}.stat-row .label{font-size:.875rem;color:var(--text-secondary)}.stat-row .value{font-weight:700;color:var(--accent, var(--text-primary))}.callout{--accent: var(--info);padding:var(--spacing-md);border-radius:var(--radius-md);background:color-mix(in srgb,var(--accent) 10%,transparent);border-left:3px solid var(--accent);color:var(--text-secondary)}.callout .callout-title{display:flex;align-items:center;gap:var(--spacing-sm);font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.callout .callout-title i{color:var(--accent)}.callout ul{margin:0;padding-left:1.25rem}.callout-info{--accent: var(--info)}.callout-success{--accent: var(--success)}.callout-warning{--accent: var(--warning)}.callout-danger{--accent: var(--error)}.result-card.accent{border-color:var(--accent, var(--primary));background:color-mix(in srgb,var(--accent, var(--primary)) 10%,var(--bg-secondary))}.result-card.accent .result-icon{background:var(--accent, var(--primary))}.result-card.accent .result-value{color:var(--accent, var(--primary))}.segmented{display:inline-flex;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:.25rem;gap:.25rem}.segmented button{background:transparent;color:var(--text-secondary);box-shadow:none;font-weight:600}.segmented button:hover{background:var(--bg-tertiary);transform:none;box-shadow:none}.segmented button.active{background:var(--primary);color:#fff}