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#1976d2;--primary-dark: #1565c0;--primary-light: #42a5f5;--accent-color: #ff5722;--accent-dark: #e64a19;--accent-light: #ff7043;--background-color: #f5f5f5;--surface-color: #ffffff;--text-primary: #212121;--text-secondary: #757575;--divider-color: #e0e0e0;--success-color: #4caf50;--warning-color: #ff9800;--error-color: #f44336;--info-color: #2196f3;--sidebar-width: 250px;--sidebar-collapsed-width: 60px;--sidebar-bg: #263238;--sidebar-text: #ffffff;--sidebar-hover: #37474f;--navbar-height: 64px;--navbar-bg: #ffffff;--navbar-text: #212121;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--border-radius-sm: 4px;--border-radius-md: 8px;--border-radius-lg: 12px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .12), 0 1px 2px rgba(0, 0, 0, .24);--shadow-md: 0 3px 6px rgba(0, 0, 0, .16), 0 3px 6px rgba(0, 0, 0, .23);--shadow-lg: 0 10px 20px rgba(0, 0, 0, .19), 0 6px 6px rgba(0, 0, 0, .23);--transition-fast: .15s ease-in-out;--transition-medium: .3s 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var(--transition-fast);text-decoration:none}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--primary-dark)}.btn-secondary{background-color:var(--text-secondary);color:#fff}.btn-secondary:hover:not(:disabled){background-color:var(--text-primary)}.btn-accent{background-color:var(--accent-color);color:#fff}.btn-accent:hover:not(:disabled){background-color:var(--accent-dark)}.btn-outline{background-color:transparent;color:var(--primary-color);border:1px solid var(--primary-color)}.btn-outline:hover:not(:disabled){background-color:var(--primary-color);color:#fff}.form-group{margin-bottom:var(--spacing-md)}.form-label{display:block;margin-bottom:var(--spacing-xs);font-weight:500;color:var(--text-primary)}.form-control{display:block;width:100%;padding:var(--spacing-sm) var(--spacing-md);font-size:14px;line-height:1.5;color:var(--text-primary);background-color:var(--surface-color);border:1px solid var(--divider-color);border-radius:var(--border-radius-sm);transition:border-color var(--transition-fast)}.form-control:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #1976d21a}.form-control::placeholder{color:var(--text-secondary)}.form-error{color:var(--error-color);font-size:12px;margin-top:var(--spacing-xs)}.row{display:flex;flex-wrap:wrap;margin:0 calc(var(--spacing-md) * -1)}.col{flex:1;padding:0 var(--spacing-md)}.col-auto{flex:0 0 auto;padding:0 var(--spacing-md)}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}.mt-5{margin-top:var(--spacing-xl)}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.mb-5{margin-bottom:var(--spacing-xl)}.p-1{padding:var(--spacing-xs)}.p-2{padding:var(--spacing-sm)}.p-3{padding:var(--spacing-md)}.p-4{padding:var(--spacing-lg)}.p-5{padding:var(--spacing-xl)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-primary{color:var(--primary-color)}.text-secondary{color:var(--text-secondary)}.text-success{color:var(--success-color)}.text-warning{color:var(--warning-color)}.text-error{color:var(--error-color)}.d-block{display:block}.d-inline{display:inline}.d-inline-block{display:inline-block}.d-flex{display:flex}.d-none{display:none}.justify-content-start{justify-content:flex-start}.justify-content-end{justify-content:flex-end}.justify-content-center{justify-content:center}.justify-content-between{justify-content:space-between}.justify-content-around{justify-content:space-around}.align-items-start{align-items:flex-start}.align-items-end{align-items:flex-end}.align-items-center{align-items:center}.align-items-baseline{align-items:baseline}.align-items-stretch{align-items:stretch}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--background-color)}::-webkit-scrollbar-thumb{background:var(--text-secondary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-primary)}.spinner{border:3px solid var(--divider-color);border-top:3px solid var(--primary-color);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:var(--spacing-lg) auto}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){html,body{font-size:13px}.container{padding:0 var(--spacing-sm)}.row{margin:0 calc(var(--spacing-sm) * -1)}.col{padding:0 var(--spacing-sm)}}