:root{--primary: #f97316;--primary-hover: #ea580c;--bg-color: #0a0a0a;--surface-color: #171717;--surface-hover: #262626;--text-primary: #ffffff;--text-secondary: #a3a3a3;--border-color: #262626;--badge-high-bg: #451a03;--badge-high-text: #f97316;--badge-med-bg: #2a1b0b;--badge-med-text: #fbbf24;--badge-low-bg: #101e14;--badge-low-text: #4ade80;--font-family: "Inter", sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-family);min-height:100vh}.container{max-width:800px;margin:2rem auto;padding:0 1.5rem}.app-header{margin-bottom:2rem}.app-header h1{font-size:1.75rem;margin-bottom:.5rem}.app-header p{color:var(--text-secondary);font-size:.95rem}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;max-width:1200px;margin:0 auto}.logo{display:flex;align-items:center;gap:.75rem;font-weight:700;font-size:1.25rem}.logo-icon{background-color:var(--primary);color:#fff;width:32px;height:32px;border-radius:8px;display:flex;justify-content:center;align-items:center;font-size:.9rem}.theme-toggle{color:var(--text-secondary);cursor:pointer;font-size:1.1rem}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:2rem}.stat-card{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:12px;padding:1.25rem;display:flex;flex-direction:column;gap:.5rem}.stat-header{display:flex;align-items:center;gap:.5rem;color:var(--text-secondary);font-size:.85rem;font-weight:500}.stat-value{font-size:2rem;font-weight:700;color:#fff;line-height:1.1}.stat-value .unit{font-size:1rem;color:var(--primary);font-weight:600;margin-left:2px}.input-group{display:flex;gap:1rem;margin-bottom:2rem;background-color:transparent}.task-input{flex:1;background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:8px;padding:.85rem 1rem;color:#fff;font-family:inherit;font-size:.95rem;outline:none;transition:border-color .2s}.task-input:focus{border-color:var(--primary)}.select-wrapper{position:relative;width:140px}.priority-select{width:100%;height:100%;appearance:none;background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:8px;padding:0 1rem;color:#fff;font-family:inherit;font-size:.95rem;cursor:pointer;outline:none}.select-wrapper i{position:absolute;right:1rem;top:50%;transform:translateY(-50%);color:var(--text-secondary);pointer-events:none;font-size:.8rem}.btn-add{background-color:var(--primary);color:#fff;border:none;border-radius:8px;padding:0 1.5rem;font-family:inherit;font-weight:600;font-size:.95rem;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:background-color .2s}.btn-add:hover{background-color:var(--primary-hover)}.filter-tabs{display:flex;gap:.5rem;margin-bottom:1.5rem}.filter-btn{background:transparent;border:none;color:var(--text-secondary);padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-family:inherit;font-size:.9rem;font-weight:500;display:flex;align-items:center;gap:.5rem;transition:all .2s}.filter-btn .badge{background-color:var(--surface-hover);padding:.1rem .4rem;border-radius:4px;font-size:.75rem;min-width:1.2rem}.filter-btn.active{background-color:var(--primary);color:#fff}.filter-btn.active .badge{background-color:#fff3;color:#fff}.filter-btn:not(.active):hover{background-color:var(--surface-color);color:#fff}.task-list{list-style:none;display:flex;flex-direction:column;gap:.75rem}.task-item{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:12px;padding:1rem 1.25rem;display:flex;align-items:center;gap:1rem;transition:transform .1s}.task-item:hover{border-color:#404040}.task-checkbox{width:24px;height:24px;border:2px solid #525252;border-radius:50%;cursor:pointer;display:flex;justify-content:center;align-items:center;flex-shrink:0;transition:all .2s}.task-checkbox:hover{border-color:#737373}.task-item.completed .task-checkbox{background-color:var(--primary);border-color:var(--primary);color:#fff}.check-icon{display:none;font-size:.8rem}.task-item.completed .check-icon{display:block}.task-content{flex:1;display:flex;flex-direction:column;gap:.25rem}.task-title{font-size:.95rem;color:#fff;font-weight:500}.task-item.completed .task-title{text-decoration:line-through;color:var(--text-secondary)}.task-priority-badge{font-size:.75rem;padding:.15rem .5rem;border-radius:4px;width:fit-content;font-weight:600}.priority-high{background-color:var(--badge-high-bg);color:var(--badge-high-text)}.priority-medium{background-color:var(--badge-med-bg);color:var(--badge-med-text)}.priority-low{background-color:var(--badge-low-bg);color:var(--badge-low-text)}.btn-delete{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;font-size:1rem;padding:.5rem;opacity:0;transition:all .2s}.task-item:hover .btn-delete{opacity:1}.btn-delete:hover{color:#ef4444}@media(max-width:600px){.stats-grid{grid-template-columns:1fr 1fr}.input-group{flex-direction:column}.select-wrapper{width:100%}}.login-container{height:100vh;display:flex;justify-content:center;align-items:center;padding:1rem}.login-card{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:16px;padding:2rem;width:100%;max-width:400px;text-align:center}.login-header{margin-bottom:2rem;display:flex;flex-direction:column;align-items:center;gap:.5rem}.logo-icon.large{width:48px;height:48px;font-size:1.5rem;margin-bottom:.5rem}.btn-google{width:100%;background-color:#fff;color:#333;border:none;padding:.8rem;border-radius:8px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:background-color .2s}.btn-google:hover{background-color:#f1f1f1}.divider{display:flex;align-items:center;margin:1.5rem 0;color:var(--text-secondary);font-size:.8rem}.divider:before,.divider:after{content:"";flex:1;height:1px;background-color:var(--border-color)}.divider span{padding:0 .5rem}.login-form{display:flex;flex-direction:column;gap:1rem}.form-group input{width:100%;background-color:var(--bg-color);border:1px solid var(--border-color);padding:.8rem;border-radius:8px;color:#fff;outline:none}.form-group input:focus{border-color:var(--primary)}.btn-submit{background-color:var(--primary);color:#fff;border:none;padding:.8rem;border-radius:8px;font-weight:600;cursor:pointer}.btn-submit:hover{background-color:var(--primary-hover)}.toggle-auth{margin-top:1.5rem;font-size:.9rem;color:var(--text-secondary)}.toggle-auth span{color:var(--primary);cursor:pointer;font-weight:600}.error-message{background-color:#ef44441a;color:#ef4444;padding:.5rem;border-radius:6px;font-size:.9rem;margin-bottom:1rem}