*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-card: #1e293be6;--bg-card-hover: #334155e6;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #22c55e;--accent-hover: #16a34a;--accent-glow: #22c55e40;--danger: #ef4444;--warning: #f59e0b;--info: #3b82f6;--purple: #a855f7;--border: #334155;--border-light: #475569;--radius-sm: 8px;--radius: 12px;--radius-lg: 16px;--radius-xl: 20px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -2px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .4), 0 4px 6px -4px rgba(0, 0, 0, .3);--transition: .2s ease;--nav-width: 240px;--nav-collapsed: 68px}html{font-size:16px;scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-light)}.app-layout{display:flex;min-height:100vh}.main-content{flex:1;margin-left:var(--nav-width);padding:24px 32px 32px;max-width:1200px;transition:margin-left var(--transition)}@media (max-width: 768px){.main-content{margin-left:0;padding:16px 16px 80px}}.page-header{margin-bottom:28px}.page-header h1{font-size:1.75rem;font-weight:700;background:linear-gradient(135deg,var(--text-primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.page-header p{color:var(--text-secondary);font-size:.9rem;margin-top:4px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:all var(--transition)}.card:hover{border-color:var(--border-light);box-shadow:var(--shadow)}.card-title{font-size:.85rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.card-value{font-size:2rem;font-weight:700;color:var(--text-primary);line-height:1.2}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}@media (max-width: 768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}@media (min-width: 769px) and (max-width: 1024px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius-sm);font-family:inherit;font-size:.9rem;font-weight:600;cursor:pointer;transition:all var(--transition);line-height:1}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);box-shadow:0 0 20px var(--accent-glow)}.btn-secondary{background:var(--bg-card-hover);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--border-light);background:var(--border)}.btn-danger{background:#ef444426;color:var(--danger)}.btn-danger:hover{background:#ef444440}.btn-sm{padding:6px 12px;font-size:.8rem}.btn-ghost{background:transparent;color:var(--text-secondary);padding:8px}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-card-hover)}.input{width:100%;padding:10px 14px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:.9rem;transition:border var(--transition);outline:none}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.input::placeholder{color:var(--text-muted)}.circular-progress{position:relative;display:inline-flex;align-items:center;justify-content:center}.circular-progress svg{transform:rotate(-90deg)}.circular-progress .progress-value{position:absolute;font-size:1.5rem;font-weight:700;color:var(--text-primary)}.stat-card{display:flex;align-items:flex-start;gap:16px}.stat-card .stat-icon{width:44px;height:44px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:1.25rem;flex-shrink:0}.stat-card .stat-icon.green{background:#22c55e26;color:var(--accent)}.stat-card .stat-icon.blue{background:#3b82f626;color:var(--info)}.stat-card .stat-icon.orange{background:#f59e0b26;color:var(--warning)}.stat-card .stat-icon.red{background:#ef444426;color:var(--danger)}.stat-card .stat-icon.purple{background:#a855f726;color:var(--purple)}.stat-card .stat-info h3{font-size:1.5rem;font-weight:700;line-height:1.2}.stat-card .stat-info p{font-size:.8rem;color:var(--text-secondary);margin-top:2px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;animation:fadeIn .15s ease}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;width:90%;max-width:480px;max-height:85vh;overflow-y:auto;animation:slideUp .2s ease}.modal h2{font-size:1.25rem;font-weight:700;margin-bottom:16px}.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:.75rem;font-weight:600}.badge-green{background:#22c55e26;color:var(--accent)}.badge-blue{background:#3b82f626;color:var(--info)}.badge-orange{background:#f59e0b26;color:var(--warning)}.badge-red{background:#ef444426;color:var(--danger)}.badge-purple{background:#a855f726;color:var(--purple)}.item-list{display:flex;flex-direction:column;gap:8px}.item-row{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-secondary);border-radius:var(--radius-sm);border:1px solid var(--border);transition:border var(--transition)}.item-row:hover{border-color:var(--border-light)}.item-row .item-info{flex:1}.item-row .item-title{font-weight:600;font-size:.9rem}.item-row .item-sub{font-size:.8rem;color:var(--text-secondary);margin-top:2px}.tabs{display:flex;gap:4px;background:var(--bg-secondary);padding:4px;border-radius:var(--radius);margin-bottom:20px;overflow-x:auto}.tab{padding:8px 16px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-family:inherit;font-size:.85rem;font-weight:500;cursor:pointer;white-space:nowrap;transition:all var(--transition)}.tab.active{background:var(--accent);color:#fff}.tab:hover:not(.active){color:var(--text-primary)}.toast-container{position:fixed;bottom:24px;right:24px;z-index:200;display:flex;flex-direction:column;gap:8px}.toast{padding:12px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);font-size:.85rem;font-weight:500;animation:slideUp .2s ease;box-shadow:var(--shadow-lg)}.toast.success{border-color:var(--accent)}.toast.error{border-color:var(--danger)}.timer-display{font-family:JetBrains Mono,monospace;font-size:4rem;font-weight:600;text-align:center;color:var(--text-primary);letter-spacing:.05em;line-height:1}.timer-phase{text-align:center;font-size:1.1rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;margin-top:8px}.timer-phase.work{color:var(--accent)}.timer-phase.rest{color:var(--warning)}.empty-state{text-align:center;padding:40px 20px;color:var(--text-muted)}.empty-state .empty-icon{font-size:3rem;margin-bottom:12px}.empty-state p{font-size:.9rem}@media (max-width: 768px){.page-header h1{font-size:1.4rem}.card-value{font-size:1.5rem}.timer-display{font-size:2.5rem}}