:root{--primary: #6366f1;--primary-hover: #4f46e5;--primary-light: #a5b4fc;--secondary: #64748b;--secondary-hover: #475569;--success: #10b981;--success-hover: #059669;--danger: #ef4444;--danger-hover: #dc2626;--warning: #f59e0b;--warning-hover: #d97706;--gray-50: #f8fafc;--gray-100: #f1f5f9;--gray-200: #e2e8f0;--gray-300: #cbd5e1;--gray-400: #94a3b8;--gray-500: #64748b;--gray-600: #475569;--gray-700: #334155;--gray-800: #1e293b;--gray-900: #0f172a;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--text-primary: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--gradient-todo: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);--gradient-in-progress: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);--gradient-completed: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);--border-todo: #fed7aa;--border-in-progress: #bae6fd;--border-completed: #bbf7d0;--status-todo-bg: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);--status-in-progress-bg: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);--status-completed-bg: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);--status-todo-text: #92400e;--status-in-progress-text: #1e40af;--status-completed-text: #065f46;--status-todo-border: #fed7aa;--status-in-progress-border: #93c5fd;--status-completed-border: #6ee7b7;--btn-primary-gradient: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);--shadow-todo: 0 0 0 1px var(--border-todo);--shadow-in-progress: 0 0 0 1px var(--border-in-progress);--shadow-completed: 0 0 0 1px var(--border-completed);--focus-primary: 0 0 0 2px rgb(99 102 241 / .1);--focus-primary-strong: 0 0 0 2px rgb(99 102 241 / .2);--focus-danger: 0 0 0 2px rgb(239 68 68 / .1);--focus-danger-strong: 0 0 0 2px rgb(239 68 68 / .2)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-tertiary) 100%);color:var(--text-primary);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:var(--space-xl)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);margin:var(--space-xs);border:none;border-radius:var(--radius-md);cursor:pointer;font-size:.875rem;font-weight:500;text-decoration:none;transition:all var(--transition-fast);position:relative;overflow:hidden;-webkit-user-select:none;user-select:none;outline:none;min-height:40px;white-space:nowrap}.btn:focus-visible{ring:2px solid var(--primary);ring-offset:2px}.btn:disabled{opacity:.6;cursor:not-allowed;pointer-events:none}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-hover) 100%);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-hover) 0%,var(--primary) 100%);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-secondary{background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--gray-300);box-shadow:var(--shadow-sm)}.btn-secondary:hover:not(:disabled){background:var(--gray-50);border-color:var(--gray-400);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-danger{background:linear-gradient(135deg,var(--danger) 0%,var(--danger-hover) 100%);color:#fff;box-shadow:var(--shadow-sm)}.btn-danger:hover:not(:disabled){background:linear-gradient(135deg,var(--danger-hover) 0%,var(--danger) 100%);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-success{background:linear-gradient(135deg,var(--success) 0%,var(--success-hover) 100%);color:#fff;box-shadow:var(--shadow-sm)}.btn-success:hover:not(:disabled){background:linear-gradient(135deg,var(--success-hover) 0%,var(--success) 100%);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid transparent}.btn-ghost:hover:not(:disabled){background:var(--gray-100);color:var(--text-primary)}.btn-sm{padding:var(--space-xs) var(--space-md);font-size:.75rem;min-height:32px}.btn-lg{padding:var(--space-md) var(--space-xl);font-size:1rem;min-height:48px}.btn-loading{position:relative;color:transparent!important}.btn-loading:after{content:"";position:absolute;width:16px;height:16px;top:50%;left:50%;margin-left:-8px;margin-top:-8px;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;animation:button-loading-spinner 1s ease infinite}@keyframes button-loading-spinner{0%{transform:rotate(0)}to{transform:rotate(1turn)}}.card{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--space-xl);margin-bottom:var(--space-xl);border:1px solid var(--gray-200);transition:all var(--transition-normal);position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary) 0%,var(--primary-light) 100%);opacity:0;transition:opacity var(--transition-normal)}.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.card:hover:before{opacity:1}.form-group{margin-bottom:var(--space-lg)}.form-label{display:block;margin-bottom:var(--space-sm);font-weight:600;color:var(--text-primary);font-size:.875rem}.form-control{width:100%;padding:var(--space-md);border:1px solid var(--gray-300);border-radius:var(--radius-md);font-size:.875rem;background:var(--bg-primary);color:var(--text-primary);transition:all var(--transition-fast);outline:none}.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px #6366f11a}.form-control::placeholder{color:var(--text-muted)}.error-message{color:var(--danger);font-size:.75rem;margin-top:var(--space-xs);display:flex;align-items:center;gap:var(--space-xs)}.skeleton{background:linear-gradient(90deg,var(--gray-200) 25%,var(--gray-300) 50%,var(--gray-200) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;border-radius:var(--radius-md)}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.skeleton-text{height:1rem;margin-bottom:var(--space-sm)}.skeleton-title{height:1.5rem;width:60%;margin-bottom:var(--space-md)}.skeleton-button{height:40px;width:100px}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.animate-fade-in{animation:fadeIn var(--transition-normal) ease-out}.animate-slide-in{animation:slideIn var(--transition-normal) ease-out}.animate-scale-in{animation:scaleIn var(--transition-normal) ease-out}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (max-width: 768px){.container{padding:var(--space-md)}body{font-size:14px}}