:root{--primary: #6366f1;--primary-hover: #4f46e5;--primary-light: #e0e7ff;--bg-app: #f8fafc;--bg-card: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--success: #10b981;--success-light: #d1fae5;--break-color: #f59e0b;--break-light: #fef3c7;--radius: 12px;--shadow: 0 4px 6px -1px rgb(0 0 0 / .05), 0 2px 4px -2px rgb(0 0 0 / .05)}*{box-sizing:border-box;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background-color:var(--bg-app);color:var(--text-main);line-height:1.6;font-size:14px}.app-container{max-width:1200px;margin:0 auto;padding:20px;min-height:100vh;display:flex;flex-direction:column;gap:20px}.app-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:15px;border-bottom:1px solid var(--border)}.logo-section{display:flex;align-items:center;gap:8px}.logo-icon{color:var(--primary);width:24px;height:24px}.logo-text{font-weight:800;font-size:18px;color:var(--text-main);letter-spacing:-.5px}.logo-sub{font-size:12px;color:var(--text-muted);background:var(--primary-light);padding:2px 8px;border-radius:20px;margin-left:5px}.badge{font-size:12px;padding:4px 10px;border-radius:20px;font-weight:500}.badge.synced{background-color:#f0fdf4;color:#16a34a}.badge.syncing{background-color:#f0f9ff;color:#0284c7}.badge.error{background-color:#fef2f2;color:#dc2626}.app-main{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:start}@media (max-width: 768px){.app-main{grid-template-columns:1fr}}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:20px}.card-title{font-size:15px;font-weight:600;color:var(--text-main);margin-bottom:15px;display:flex;align-items:center;gap:6px}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:15px}.stat-box{background:#f8fafc;padding:12px;border-radius:8px;display:flex;flex-direction:column}.stat-box.highlight{background:#f5f3ff;border-left:4px solid var(--primary)}.stat-label{font-size:11px;color:var(--text-muted);margin-bottom:4px}.stat-value{font-size:20px;font-weight:700;color:var(--text-main)}.stat-value small{font-size:12px;font-weight:400;color:var(--text-muted)}.chart-container{margin-top:15px;padding-top:15px;border-top:1px dashed var(--border)}.bar-chart{width:100%;height:auto}.chart-text{font-size:8px;fill:var(--text-muted)}.chart-val-text{font-size:7px;fill:var(--primary);font-weight:700}.task-form{display:flex;flex-direction:column;gap:12px}.main-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:13px;outline:none;transition:border-color .2s}.main-input:focus{border-color:var(--primary)}.control-row{display:flex;gap:10px;align-items:center}.selector{display:flex;align-items:center;gap:6px;background:#f1f5f9;padding:6px 10px;border-radius:8px;color:var(--text-muted)}.selector select{border:none;background:transparent;font-size:12px;color:var(--text-main);outline:none;cursor:pointer}.btn-add{margin-left:auto;background:var(--primary);color:#fff;border:none;padding:8px 16px;border-radius:8px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:4px;cursor:pointer;transition:background .2s}.btn-add:hover{background:var(--primary-hover)}.list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.clear-hint{font-size:11px;color:var(--text-muted)}.empty-state{text-align:center;padding:30px 10px}.empty-icon{color:#cbd5e1;width:40px;height:40px;margin-bottom:10px}.empty-title{font-weight:600;color:var(--text-main);font-size:14px}.empty-desc{font-size:12px;color:var(--text-muted);margin-top:4px}.task-list{display:flex;flex-direction:column;gap:8px;max-height:320px;overflow-y:auto}.task-item{display:flex;align-items:center;gap:12px;padding:10px 12px;background:#f8fafc;border:1px solid var(--border);border-radius:8px;transition:all .2s}.task-item:hover{border-color:#cbd5e1}.task-item.completed{opacity:.6;background:#f1f5f9}.task-item.completed .task-name{text-decoration:line-through;color:var(--text-muted)}.btn-check{background:none;border:none;color:#cbd5e1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:color .2s}.task-item.completed .btn-check{color:var(--success)}.task-info{flex-grow:1;display:flex;flex-direction:column;gap:4px}.task-name{font-size:13px;font-weight:500;color:var(--text-main)}.task-meta{display:flex;gap:6px;flex-wrap:wrap}.meta-badge{font-size:10px;padding:1px 6px;border-radius:4px;background:#e2e8f0;color:var(--text-muted)}.meta-badge.subject{background:#e0e7ff;color:var(--primary)}.btn-delete{background:none;border:none;color:#94a3b8;cursor:pointer;padding:4px;border-radius:4px;transition:all .2s}.btn-delete:hover{color:#ef4444;background:#fee}.timer-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:30px 20px}.timer-mode-badge{font-size:12px;font-weight:600;padding:4px 12px;border-radius:20px}.timer-mode-badge.work{background:var(--primary-light);color:var(--primary)}.timer-mode-badge.break{background:var(--break-light);color:var(--break-color)}.timer-display{font-size:84px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--text-main);margin:15px 0;letter-spacing:-2px}.timer-progress-bar{width:100%;height:6px;background:#f1f5f9;border-radius:10px;overflow:hidden;margin-bottom:24px}.timer-progress-fill{height:100%;border-radius:10px;transition:width 1s linear}.timer-progress-fill.work{background:var(--primary)}.timer-progress-fill.break{background:var(--break-color)}.timer-controls{display:flex;gap:12px;width:100%;justify-content:center;margin-bottom:30px}.btn-timer-main{background:var(--primary);color:#fff;border:none;padding:12px 24px;border-radius:30px;font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px;cursor:pointer;box-shadow:0 4px 12px #6366f133;transition:all .2s}.btn-timer-main.running{background:#334155;box-shadow:none}.btn-timer-reset{background:#f1f5f9;color:var(--text-muted);border:none;padding:12px 18px;border-radius:30px;font-size:14px;display:flex;align-items:center;gap:6px;cursor:pointer;transition:background .2s}.btn-timer-reset:hover{background:#e2e8f0}.sport-incentive{width:100%;background:#f8fafc;border:1px solid var(--border);border-radius:8px;padding:15px;text-align:left}.incentive-title{display:flex;align-items:center;gap:8px;font-weight:600;font-size:13px;color:var(--text-main);margin-bottom:10px}.sport-icon{color:#f43f5e}.incentive-options{display:flex;flex-direction:column;gap:8px}.incentive-item{display:flex;justify-content:space-between;font-size:12px;padding:6px 8px;background:#fff;border-radius:6px;border:1px solid #f1f5f9}.incentive-item .cost{color:#f43f5e;font-weight:700}.incentive-item .action{color:var(--text-muted)}.undo-toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:#1e293b;color:#fff;padding:12px 20px;border-radius:30px;display:flex;align-items:center;gap:15px;box-shadow:0 10px 15px -3px #0000004d;z-index:100}.btn-undo{background:#38bdf8;color:#0f172a;border:none;padding:4px 10px;border-radius:20px;font-size:11px;font-weight:700;display:flex;align-items:center;gap:4px;cursor:pointer}