:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #1a1a24;--bg-hover: #22222e;--accent-primary: #00d4aa;--accent-secondary: #00b894;--accent-glow: rgba(0, 212, 170, .15);--text-primary: #f0f0f5;--text-secondary: #8888a0;--text-muted: #555566;--border-color: #2a2a3a;--danger: #ff6b6b;--success: #00d4aa;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--shadow-glow: 0 0 30px var(--accent-glow);--transition: all .2s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Outfit,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(0,212,170,.08),transparent),radial-gradient(ellipse 60% 40% at 100% 100%,rgba(0,184,148,.05),transparent);pointer-events:none;z-index:-1}.app{max-width:680px;margin:0 auto;padding:60px 24px}.header{text-align:center;margin-bottom:48px;animation:fadeInDown .6s ease-out}.logo{display:inline-flex;align-items:center;gap:12px;margin-bottom:12px}.logo-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:var(--shadow-glow)}h1{font-size:2.5rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,var(--text-primary) 0%,var(--text-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtitle{color:var(--text-secondary);font-size:1rem;margin-top:8px;font-weight:400}.stack-badge{display:inline-flex;gap:8px;margin-top:20px;padding:8px 16px;background:var(--bg-secondary);border-radius:100px;border:1px solid var(--border-color);font-family:JetBrains Mono,monospace;font-size:.75rem;color:var(--text-secondary)}.stack-badge span{padding:2px 8px;background:var(--bg-card);border-radius:4px}.task-form{display:flex;gap:12px;margin-bottom:32px;animation:fadeInUp .6s ease-out .1s both}.task-input{flex:1;padding:16px 20px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:1rem;font-family:inherit;transition:var(--transition)}.task-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-glow)}.task-input::placeholder{color:var(--text-muted)}.btn{padding:16px 28px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border:none;border-radius:var(--radius-md);color:var(--bg-primary);font-size:.95rem;font-weight:600;font-family:inherit;cursor:pointer;transition:var(--transition);white-space:nowrap}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.task-list{display:flex;flex-direction:column;gap:12px}.task-item{display:flex;align-items:center;gap:16px;padding:18px 20px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:var(--transition);animation:fadeInUp .4s ease-out both}.task-item:hover{background:var(--bg-hover);border-color:var(--accent-primary);transform:translate(4px)}.task-item.completed{opacity:.6}.task-checkbox{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:22px;height:22px;border:2px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);position:relative;flex-shrink:0}.task-checkbox:checked{background:var(--accent-primary);border-color:var(--accent-primary)}.task-checkbox:checked:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:var(--bg-primary);font-size:14px;font-weight:600}.task-checkbox:hover{border-color:var(--accent-primary)}.task-content{flex:1;display:flex;flex-direction:column;gap:4px}.task-title{font-size:1rem;font-weight:500;color:var(--text-primary);transition:var(--transition)}.task-item.completed .task-title{text-decoration:line-through;color:var(--text-muted)}.task-date{font-size:.75rem;color:var(--text-muted);font-family:JetBrains Mono,monospace}.task-delete{padding:8px 12px;background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);color:var(--text-muted);font-size:1.1rem;cursor:pointer;transition:var(--transition);opacity:0}.task-item:hover .task-delete{opacity:1}.task-delete:hover{color:var(--danger);background:#ff6b6b1a;border-color:#ff6b6b4d}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted);animation:fadeIn .6s ease-out}.empty-state-icon{font-size:3rem;margin-bottom:16px;opacity:.5}.empty-state p{font-size:1.1rem}.loading,.error{text-align:center;padding:40px;color:var(--text-secondary)}.error{color:var(--danger);background:#ff6b6b1a;border-radius:var(--radius-md);border:1px solid rgba(255,107,107,.2)}.stats{display:flex;justify-content:center;gap:24px;margin-bottom:24px;padding:16px;background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border-color);animation:fadeInUp .6s ease-out .2s both}.stat{text-align:center}.stat-value{font-size:1.5rem;font-weight:600;font-family:JetBrains Mono,monospace;color:var(--accent-primary)}.stat-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 600px){.app{padding:40px 16px}h1{font-size:1.8rem}.task-form{flex-direction:column}.btn{width:100%}.stats{gap:16px}}