:root{--color-primary: #1a1a2e;--color-primary-light: #16213e;--color-accent: #0f3460;--color-accent-light: #e94560;--color-bg: #f0f2f5;--color-white: #ffffff;--color-text: #2d3436;--color-text-light: #636e72;--color-border: #dfe6e9;--color-error: #d63031;--color-error-bg: #ffeaa7;--color-success: #00b894;--color-status-todo: #0984e3;--color-status-in_progress: #fdcb6e;--color-status-done: #00b894;--color-priority-low: #74b9ff;--color-priority-medium: #fdcb6e;--color-priority-high: #e17055;--radius: 8px;--shadow: 0 2px 8px rgba(0, 0, 0, .08);--shadow-hover: 0 4px 16px rgba(0, 0, 0, .12);--transition: all .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding-top:1rem;padding-bottom:2rem}.container{max-width:960px;margin:0 auto;padding:0 1rem}.navbar{background:var(--color-primary);color:var(--color-white);padding:0 1rem;box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.navbar-inner{max-width:960px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:56px}.navbar-brand{font-size:1.25rem;font-weight:700;color:var(--color-white);letter-spacing:-.5px}.navbar-brand:hover{text-decoration:none;opacity:.9}.navbar-right{display:flex;align-items:center;gap:1rem}.navbar-greeting{font-size:.875rem;opacity:.85}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1.25rem;font-size:.875rem;font-weight:500;border:none;border-radius:var(--radius);cursor:pointer;transition:var(--transition);line-height:1.4}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-accent);color:var(--color-white)}.btn-primary:hover:not(:disabled){background:var(--color-primary-light)}.btn-secondary{background:var(--color-border);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:#b2bec3}.btn-danger{background:var(--color-error);color:var(--color-white)}.btn-danger:hover:not(:disabled){background:#c0392b}.btn-outline{background:transparent;color:var(--color-white);border:1px solid rgba(255,255,255,.4)}.btn-outline:hover{background:#ffffff1a}.btn-block{width:100%}.card{background:var(--color-white);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem;margin-bottom:1rem}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:1rem;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 100%)}.auth-card{background:var(--color-white);border-radius:var(--radius);box-shadow:var(--shadow);padding:2.5rem;width:100%;max-width:420px}.auth-title{font-size:1.75rem;font-weight:700;margin-bottom:.25rem}.auth-subtitle{color:var(--color-text-light);margin-bottom:1.5rem}.auth-footer{text-align:center;margin-top:1.5rem;font-size:.875rem;color:var(--color-text-light)}.form-group{margin-bottom:1rem}.form-group label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.375rem;color:var(--color-text)}.form-group input,.form-group textarea,.form-group select{width:100%;padding:.625rem .75rem;font-size:.9375rem;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-white);transition:var(--transition);font-family:inherit}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px #0f34601a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-actions{display:flex;gap:.75rem;margin-top:1rem}.alert{padding:.75rem 1rem;border-radius:var(--radius);margin-bottom:1rem;font-size:.875rem}.alert-error{background:#ffeaea;color:var(--color-error);border:1px solid #ffcccc}.dashboard-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem;margin-top:1rem}.dashboard-header h1{font-size:1.5rem}.filter-bar{display:flex;gap:.5rem;margin-bottom:1.5rem;flex-wrap:wrap}.filter-btn{padding:.375rem 1rem;font-size:.8125rem;font-weight:500;border:1px solid var(--color-border);border-radius:20px;background:var(--color-white);color:var(--color-text-light);cursor:pointer;transition:var(--transition)}.filter-btn:hover{border-color:var(--color-accent);color:var(--color-accent)}.filter-btn.active{background:var(--color-accent);color:var(--color-white);border-color:var(--color-accent)}.task-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.task-card{display:block;background:var(--color-white);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem;transition:var(--transition);text-decoration:none;color:var(--color-text);border-left:4px solid transparent}.task-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);text-decoration:none}.task-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:.5rem;margin-bottom:.5rem}.task-card-title{font-size:1rem;font-weight:600;line-height:1.3}.task-card-desc{font-size:.8125rem;color:var(--color-text-light);margin-bottom:.75rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.task-card-footer{display:flex;align-items:center;gap:.5rem}.badge{display:inline-block;padding:.2rem .6rem;font-size:.7rem;font-weight:600;border-radius:12px;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}.badge-status-todo{background:#dfe6fd;color:var(--color-status-todo)}.badge-status-in_progress{background:#fef3cd;color:#e17055}.badge-status-done{background:#d4edda;color:var(--color-status-done)}.badge-priority-low{background:#e8f4fd;color:#0984e3}.badge-priority-medium{background:#fef3cd;color:#d68910}.badge-priority-high{background:#fde8e4;color:#e17055}.back-link{display:inline-block;margin:1rem 0;font-size:.875rem;color:var(--color-accent)}.back-link:hover{text-decoration:underline}.task-detail-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:1rem}.task-detail-header h1{font-size:1.5rem;line-height:1.3}.task-detail-actions{display:flex;gap:.5rem;flex-shrink:0}.task-detail-meta{display:flex;gap:.5rem;margin-bottom:1.5rem}.task-detail-body{margin-bottom:1.5rem}.task-detail-body h3{font-size:.875rem;text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-light);margin-bottom:.5rem}.task-detail-body p{white-space:pre-wrap;line-height:1.7}.task-detail-date{font-size:.8125rem;color:var(--color-text-light)}.loading{text-align:center;padding:3rem 1rem;color:var(--color-text-light);font-size:.9375rem}.empty-state{text-align:center;padding:3rem 1rem;color:var(--color-text-light)}@media (max-width: 640px){.dashboard-header{flex-direction:column;align-items:flex-start;gap:.75rem}.task-grid{grid-template-columns:1fr}.task-detail-header{flex-direction:column}.form-row{grid-template-columns:1fr}.auth-card{padding:1.5rem}.navbar-greeting{display:none}}