:root{--color-bg: #f5f6fa;--color-surface: #ffffff;--color-primary: #4f46e5;--color-primary-hover: #4338ca;--color-primary-light: #eef2ff;--color-text: #1f2937;--color-text-muted: #6b7280;--color-border: #e5e7eb;--color-error: #dc2626;--color-error-bg: #fef2f2;--color-success: #059669;--color-pending: #d97706;--color-in-progress: #2563eb;--color-completed: #059669;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--radius: 8px;--radius-lg: 12px;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.5;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}.layout{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--color-surface);padding:1rem 1.5rem;box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem}.logo{font-weight:700;font-size:1.25rem;color:var(--color-primary);text-decoration:none}.logo:hover{text-decoration:underline}.header-actions{display:flex;align-items:center;gap:1rem}.user-name{color:var(--color-text-muted);font-size:.9rem}.main{flex:1;padding:1.5rem;max-width:900px;margin:0 auto;width:100%}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;font-size:.9rem;font-weight:500;border-radius:var(--radius);border:none;cursor:pointer;transition:background .15s,color .15s;font-family:inherit}.btn:disabled{opacity:.7;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-outline{background:transparent;color:var(--color-primary);border:1px solid var(--color-primary)}.btn-outline:hover:not(:disabled){background:var(--color-primary-light)}.btn-danger{background:#dc2626;color:#fff}.btn-danger:hover:not(:disabled){background:#b91c1c}.btn-sm{padding:.35rem .75rem;font-size:.85rem}.btn-block{width:100%}.btn-lg{padding:.75rem 1.5rem;font-size:1rem}.btn-ghost{background:transparent;color:var(--color-primary);border:none}.btn-ghost:hover:not(:disabled){background:var(--color-primary-light)}.home-page{min-height:100vh;display:flex;flex-direction:column}.home-nav{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;background:var(--color-surface);box-shadow:var(--shadow-sm)}.home-logo{font-weight:700;font-size:1.25rem;color:var(--color-primary);text-decoration:none}.home-logo:hover{text-decoration:underline}.home-nav-actions{display:flex;align-items:center;gap:.75rem}.hero{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:3rem 1.5rem}.hero-title{margin:0 0 1rem;font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;line-height:1.2}.hero-accent{color:var(--color-primary)}.hero-subtitle{margin:0 0 2rem;font-size:1.1rem;color:var(--color-text-muted);max-width:480px}.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}.features{padding:3rem 1.5rem;background:var(--color-surface)}.features-title{margin:0 0 2rem;text-align:center;font-size:1.5rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;max-width:900px;margin:0 auto}.feature-card{padding:1.5rem;border-radius:var(--radius-lg);background:var(--color-bg);border:1px solid var(--color-border);transition:box-shadow .2s,transform .2s}.feature-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.feature-icon{display:inline-block;margin-bottom:.75rem;font-size:1.5rem}.feature-card h3{margin:0 0 .5rem;font-size:1.1rem}.feature-card p{margin:0;font-size:.9rem;color:var(--color-text-muted)}.home-footer{padding:1rem 1.5rem;text-align:center;font-size:.85rem;color:var(--color-text-muted);border-top:1px solid var(--color-border)}.profile-trigger{display:flex;align-items:center;gap:.5rem;padding:.35rem .5rem .35rem .35rem;background:transparent;border:1px solid var(--color-border);border-radius:var(--radius-lg);cursor:pointer;font-family:inherit;font-size:.9rem;color:var(--color-text);transition:background .15s,border-color .15s}.profile-trigger:hover{background:var(--color-primary-light);border-color:var(--color-primary)}.profile-avatar{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--color-primary);color:#fff;font-weight:600;font-size:.85rem}.profile-avatar-lg{width:48px;height:48px;font-size:1.1rem}.profile-name{font-weight:500;color:var(--color-text)}.profile-chevron{font-size:.6rem;color:var(--color-text-muted);transition:transform .2s}.profile-trigger[aria-expanded=true] .profile-chevron{transform:rotate(180deg)}.header-actions{position:relative}.profile-dropdown{position:absolute;top:calc(100% + .5rem);right:0;min-width:240px;background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--color-border);z-index:100;animation:dropdownIn .15s ease-out}@keyframes dropdownIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.profile-dropdown-header{display:flex;align-items:center;gap:.75rem;padding:1rem;border-bottom:1px solid var(--color-border)}.profile-dropdown-name{font-weight:600;font-size:.95rem}.profile-dropdown-email{font-size:.85rem;color:var(--color-text-muted)}.profile-dropdown-actions{padding:.5rem}.profile-dropdown-item{display:block;width:100%;padding:.5rem .75rem;text-align:left;font-size:.9rem;color:var(--color-text);text-decoration:none;border:none;background:transparent;border-radius:var(--radius);cursor:pointer;font-family:inherit;transition:background .15s}.profile-dropdown-item:hover{background:var(--color-primary-light)}.profile-dropdown-logout{color:var(--color-error)}.profile-dropdown-logout:hover{background:var(--color-error-bg)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem}.auth-card{width:100%;max-width:400px;background:var(--color-surface);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.auth-card h1{margin:0 0 .25rem;font-size:1.5rem}.auth-subtitle{color:var(--color-text-muted);margin:0 0 1.5rem;font-size:.9rem}.auth-form .form-group{margin-bottom:1rem}.auth-form .btn{margin-top:.5rem}.auth-footer{margin:1.5rem 0 0;text-align:center;font-size:.9rem;color:var(--color-text-muted)}.auth-footer a{color:var(--color-primary);text-decoration:none;font-weight:500}.auth-footer a:hover{text-decoration:underline}.form-group{margin-bottom:1rem}.form-group label{display:block;font-weight:500;font-size:.9rem;margin-bottom:.35rem;color:var(--color-text)}.form-group input,.form-group textarea,.form-group select{width:100%;padding:.5rem .75rem;font-size:1rem;font-family:inherit;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text)}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #4f46e526}.form-group textarea{resize:vertical;min-height:80px}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1rem}.form-actions{display:flex;gap:.75rem;justify-content:flex-end;margin-top:1rem}.alert{padding:.75rem 1rem;border-radius:var(--radius);margin-bottom:1rem;font-size:.9rem}.alert-error{background:var(--color-error-bg);color:var(--color-error)}.dashboard-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem}.dashboard-header h1{margin:0;font-size:1.5rem}.dashboard-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:1rem}.filter-tabs{display:flex;flex-wrap:wrap;gap:.35rem}.filter-tab{padding:.4rem .75rem;font-size:.85rem;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text-muted);cursor:pointer;font-family:inherit;transition:background .15s,color .15s,border-color .15s}.filter-tab:hover{background:var(--color-primary-light);color:var(--color-primary);border-color:var(--color-primary)}.filter-tab.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.dashboard-actions{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem}.filter-select{padding:.5rem .75rem;font-size:.9rem;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);min-width:140px}.view-toggle{display:flex;border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden}.view-btn{padding:.4rem .75rem;font-size:.85rem;border:none;background:var(--color-surface);color:var(--color-text-muted);cursor:pointer;font-family:inherit;transition:background .15s,color .15s}.view-btn:hover{background:var(--color-primary-light);color:var(--color-primary)}.view-btn.active{background:var(--color-primary);color:#fff}.btn-add{white-space:nowrap}.dashboard-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:1.5rem}.stat-card{padding:1rem;border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow);text-align:center;transition:transform .2s,box-shadow .2s}.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.stat-value{display:block;font-size:1.75rem;font-weight:700;color:var(--color-text)}.stat-label{font-size:.85rem;color:var(--color-text-muted)}.stat-pending .stat-value{color:var(--color-pending)}.stat-progress .stat-value{color:var(--color-in-progress)}.stat-completed .stat-value{color:var(--color-completed)}.task-form-card{background:var(--color-surface);padding:1.5rem;border-radius:var(--radius-lg);box-shadow:var(--shadow);margin-bottom:1.5rem}.task-form-card h2{margin:0 0 1rem;font-size:1.1rem}.task-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1rem}.task-card{background:var(--color-surface);padding:1.25rem;border-radius:var(--radius-lg);box-shadow:var(--shadow);display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:1rem;transition:transform .2s,box-shadow .2s;border-left:4px solid transparent}.task-card:hover{box-shadow:var(--shadow-md)}.task-card.timeline-overdue{border-left-color:var(--color-error)}.task-card.timeline-today{border-left-color:var(--color-in-progress)}.task-card.timeline-upcoming{border-left-color:var(--color-completed)}.task-content{flex:1;min-width:0}.task-title{margin:0 0 .35rem;font-size:1.05rem;font-weight:600}.task-description{margin:0 0 .5rem;font-size:.9rem;color:var(--color-text-muted);white-space:pre-wrap}.task-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem;margin-top:.5rem}.task-status{display:inline-block;padding:.2rem .6rem;font-size:.75rem;font-weight:500;border-radius:9999px;text-transform:capitalize}.task-due{font-size:.8rem;color:var(--color-text-muted)}.task-due.timeline-overdue{color:var(--color-error);font-weight:500}.task-due.timeline-today{color:var(--color-in-progress);font-weight:500}.status-pending{background:#fef3c7;color:var(--color-pending)}.status-in-progress{background:#dbeafe;color:var(--color-in-progress)}.status-completed{background:#d1fae5;color:var(--color-completed)}.task-actions{display:flex;gap:.5rem}.task-list-timeline .task-list{display:flex;flex-direction:column;gap:1rem}.timeline-view{display:flex;flex-direction:column;gap:1.5rem}.timeline-group{display:flex;flex-direction:column;gap:.75rem}.timeline-date-header{margin:0;font-size:.95rem;font-weight:600;color:var(--color-primary);padding-bottom:.25rem;border-bottom:2px solid var(--color-primary-light)}.empty-state{text-align:center;padding:3rem 1.5rem;color:var(--color-text-muted);background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow)}.loading-screen,.loading-block{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:3rem;color:var(--color-text-muted)}.spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 640px){.header{padding:.75rem 1rem}.main{padding:1rem}.dashboard-header{flex-direction:column;align-items:stretch}.dashboard-toolbar{flex-wrap:wrap}.task-card{flex-direction:column;align-items:stretch}.task-actions{justify-content:flex-end}}