*{box-sizing:border-box}:root{--bg:#f6f7fb;--card:#fff;--text:#1a1d29;--muted:#6b7280;--border:#e5e7eb;--primary:#4f46e5;--primary-hover:#4338ca;--success:#10b981;--danger:#ef4444;--radius:14px;--shadow:0 10px 30px #4f46e514, 0 2px 8px #0000000d;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}body{color:var(--text);background:radial-gradient(1000px 400px at 10% -5%, #4f46e51f, transparent), radial-gradient(800px 400px at 90% 0%, #10b9811a, transparent), var(--bg);min-height:100vh;margin:0}.page{min-height:100vh;padding:24px 16px 48px}.container{max-width:760px;margin:0 auto}.center-col{flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:60vh;display:flex}.header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand .logo{background:var(--card);border:1px solid var(--border);width:52px;height:52px;box-shadow:var(--shadow);border-radius:16px;place-items:center;font-size:32px;display:grid}.brand h1{letter-spacing:-.02em;margin:0;font-size:24px}.muted{color:var(--muted)}.small{font-size:13px}.userbox{background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:999px;align-items:center;gap:10px;padding:8px 8px 8px 14px;display:flex}.userbox .email{text-overflow:ellipsis;white-space:nowrap;max-width:220px;font-size:14px;font-weight:600;overflow:hidden}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.center{text-align:center}.btn{border:1px solid var(--border);background:var(--card);color:var(--text);cursor:pointer;border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600;transition:transform 80ms,background .15s}.btn:hover{background:#f8faff;border-color:#c7d2fe}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-hover)}.btn.sm{border-radius:999px;padding:7px 12px;font-size:13px}.btn.icon-btn{border-radius:10px;place-items:center;width:38px;height:38px;padding:0;font-size:18px;display:grid}.btn.danger-outline{color:var(--danger);background:#fff;border-color:#fecaca}.btn.danger-outline:hover{background:#fef2f2}.auth-layout{grid-template-columns:1fr 1fr;align-items:start;gap:20px;display:grid}@media (width<=720px){.auth-layout{grid-template-columns:1fr}}.hero-text{padding:12px 4px}.big-title{letter-spacing:-.03em;margin:8px 0 16px;font-size:38px;line-height:1.1}.big-title .accent{background:linear-gradient(90deg,#4f46e5,#06b6d4);color:#0000;-webkit-background-clip:text;background-clip:text}.features{gap:10px;margin:0;padding:0;list-style:none;display:grid}.features li{background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;padding:10px 14px;font-size:14px}.auth-card{background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:18px;padding:20px}.google-btn{justify-content:center;align-items:center;gap:10px;width:100%;padding:11px 16px;font-size:15px;display:flex}.google-btn svg{flex-shrink:0}.auth-divider{color:var(--muted);align-items:center;gap:12px;margin:16px 0;font-size:13px;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--border);flex:1;height:1px}.auth-divider span{padding:0 4px}.auth-tabs{background:#f1f5f9;border-radius:12px;gap:4px;padding:4px;display:flex}.auth-tabs button{cursor:pointer;color:var(--muted);background:0 0;border:0;border-radius:9px;flex:1;padding:10px;font-weight:700}.auth-tabs button.active{color:var(--text);background:#fff;box-shadow:0 1px 4px #00000014}.auth-card h2{margin:16px 0 4px}.auth-form{gap:12px;margin-top:14px;display:grid}.auth-form label{gap:6px;font-size:13px;font-weight:700;display:grid}input[type=text],input[type=email],input[type=password],input[type=search],textarea{border:1px solid var(--border);width:100%;color:var(--text);background:#fff;border-radius:10px;outline:none;padding:11px 13px;font-size:14px}input:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51f}textarea{resize:vertical;font-family:inherit}.alert{border-radius:10px;padding:10px 12px;font-size:13px}.alert.error{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca}.alert.success{color:#065f46;background:#ecfdf5;border:1px solid #a7f3d0}.todo-wrap{gap:14px;display:grid}.progress-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px}.progress-head{flex-wrap:wrap;justify-content:space-between;gap:8px;margin-bottom:10px;font-size:14px;display:flex}.progress-bar{background:#eef2ff;border-radius:999px;height:10px;overflow:hidden}.progress-fill{background:linear-gradient(90deg,#4f46e5,#06b6d4);border-radius:999px;height:100%;transition:width .3s}.todo-form{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);gap:10px;padding:14px;display:grid}.todo-form-row{gap:8px;display:flex}.todo-form-row input{flex:1}.toolbar{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.toolbar .search{flex:1;min-width:180px}.seg{background:var(--card);border:1px solid var(--border);border-radius:999px;gap:2px;padding:3px;display:flex}.seg button{color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}.seg button.active{background:var(--text);color:#fff}.todo-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.todo-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);align-items:flex-start;gap:12px;padding:13px 12px;animation:.18s slideIn;display:flex}@keyframes slideIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.todo-item.completed{opacity:.75}.check{cursor:pointer;margin-top:2px;position:relative}.check input{opacity:0;cursor:pointer;width:22px;height:22px;margin:0;position:absolute}.check .box{color:#fff;background:#fff;border:2px solid #c7d2fe;border-radius:8px;place-items:center;width:22px;height:22px;font-size:14px;font-weight:900;transition:all .15s;display:grid}.check input:checked+.box{background:var(--success);border-color:var(--success)}.todo-body{flex:1;gap:3px;min-width:0;display:grid}.todo-title{word-break:break-word;font-size:15px;font-weight:650}.todo-item.completed .todo-title{color:var(--muted);text-decoration:line-through}.todo-desc{color:var(--muted);white-space:pre-wrap;word-break:break-word;background:#f8fafc;border:1px solid #f1f5f9;border-radius:8px;padding:7px 9px;font-size:13px}.todo-date{color:#9ca3af;font-size:12px}.todo-actions{gap:6px;display:flex}.edit-box{gap:8px;display:grid}.edit-actions{gap:8px;display:flex}.empty{padding:36px 20px}.empty-emoji{font-size:44px}.spinner{border:3px solid #e0e7ff;border-top-color:var(--primary);border-radius:50%;width:34px;height:34px;margin:0 auto;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.footer{text-align:center;border-top:1px dashed var(--border);margin-top:26px;padding-top:16px}