body{margin:0;font-family:Arial;background:#f8f8f8}
.sidebar{position:fixed;right:0;top:0;bottom:0;width:210px;background:#FAFAFA;padding:20px;border-left:1px solid #eee;overflow:auto}
.main{margin-right:230px;padding:18px;max-width:1100px;margin:auto}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:25px}
.card{background:#fff;border:1px solid #ccc;border-radius:14px;text-align:center;padding:15px;transition:.3s;position:relative}
.card:hover{transform:scale(1.05);box-shadow:0 4px 15px rgba(0,0,0,0.15)}
.card img{width:40px;height:40px;margin-bottom:8px}
.card-category{padding:2px 8px;border-radius:10px;display:inline-block;font-size:.9em}
.card-actions{position:absolute;top:6px;left:8px;display:flex;gap:4px}
a.cat-btn,a.cat-btn-active{display:block;padding:8px;margin-bottom:6px;background:#eee;border-radius:6px;text-decoration:none;color:#333}
a.cat-btn-active{background:#ccc;font-weight:bold}
.back-all{position:fixed;top:15px;left:15px;background:#ddd;padding:6px 10px;border-radius:6px;text-decoration:none;color:#000;font-weight:bold;box-shadow:0 2px 6px rgba(0,0,0,0.15);z-index:9999}
.back-all:hover{background:#bbb}
.search{width:90%;padding:7px;border-radius:8px;border:1px solid #ccc;margin-bottom:10px}
.add-btn{position:fixed;bottom:25px;left:25px;background:#1E88E5;color:#fff;font-size:30px;width:50px;height:50px;border-radius:50%;text-align:center;line-height:50px;box-shadow:0 4px 12px rgba(0,0,0,0.25);cursor:pointer;z-index:10000}
.add-btn:hover{background:#1565C0}
.popup{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:10001;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.popup-content{background:#fff;width:90%;max-width:400px;margin:100px auto;padding:20px;border-radius:10px;position:relative;animation:scaleIn .3s ease}
@keyframes scaleIn{from{opacity:0;transform:scale(0.8)}to{opacity:1;transform:scale(1)}}
.popup-content button.close{position:absolute;top:10px;left:10px;background:none;border:none;font-size:20px;cursor:pointer}