.premium-card-3d{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1;background:#ffffffe6;transition:all .4s cubic-bezier(.175,.885,.32,1.275);position:relative;overflow:hidden;box-shadow:0 10px 30px #00000014;border:none!important;border-radius:20px!important}.premium-card-3d:hover{background:#fff;transform:translateY(-15px)scale(1.03)rotateX(5deg)rotateY(-2deg);box-shadow:0 25px 50px #00000026}.premium-card-3d:before{content:"";z-index:-1;background:linear-gradient(135deg,#fff6 0%,#fff0 100%);width:100%;height:100%;position:absolute;top:0;left:0}.premium-card-3d .card-icon-container{background:#f8f9fa;border-radius:18px;justify-content:center;align-items:center;width:80px;height:80px;margin-bottom:20px;transition:all .3s;display:flex}.premium-card-3d:hover .card-icon-container{background:#e9ecef;transform:scale(1.1)rotate(5deg)}.premium-card-3d h5{color:#1d1d1f;margin-bottom:10px;font-weight:700}.premium-card-3d .list-group-item{border:none;align-items:center;padding:8px 0;font-size:.95rem;display:flex;background:0 0!important}.premium-card-3d .bi-patch-check-fill{filter:drop-shadow(0 2px 4px #0000001a);margin-right:12px;font-size:1.1rem}.card-math{color:#fff!important;background:linear-gradient(135deg,#066ac9d9 0%,#00a2ffd9 100%)!important}.card-reading{color:#fff!important;background:linear-gradient(135deg,#d6293ed9 0%,#ff5e62d9 100%)!important}.card-app{color:#fff!important;background:linear-gradient(135deg,#0cbc87d9 0%,#2af598d9 100%)!important}.premium-card-3d{-webkit-backdrop-filter:blur(15px)saturate(150%);backdrop-filter:blur(15px)saturate(150%);border:1px solid #fff3!important}.premium-card-3d.card-math h5,.premium-card-3d.card-reading h5,.premium-card-3d.card-app h5{text-shadow:0 2px 4px #0003;font-weight:800;color:#fff!important}.premium-card-3d.card-math .text-muted,.premium-card-3d.card-reading .text-muted,.premium-card-3d.card-app .text-muted{opacity:.95;text-shadow:0 1px 2px #0003;font-weight:500;color:#fff!important}.premium-card-3d.card-math .list-group-item,.premium-card-3d.card-reading .list-group-item,.premium-card-3d.card-app .list-group-item{font-weight:500;color:#fff!important}.premium-card-3d.card-math .bi-patch-check-fill,.premium-card-3d.card-reading .bi-patch-check-fill,.premium-card-3d.card-app .bi-patch-check-fill{opacity:1;filter:drop-shadow(0 2px 4px #0003);color:#fff!important}.premium-card-3d .card-icon-container{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid #fff6;box-shadow:0 4px 15px #0000001a;background:#ffffff40!important}.premium-card-3d:hover .card-icon-container{background:#fff6!important}.premium-card-3d:after{content:"";pointer-events:none;background:linear-gradient(45deg,#0000,#ffffff1a,#0000);width:200%;height:200%;transition:all .6s;position:absolute;top:-50%;left:-50%;transform:rotate(45deg)}.whatsapp-float{color:#fff;text-align:center;z-index:1000;background-color:#25d366;border-radius:50px;justify-content:center;align-items:center;width:60px;height:60px;font-size:30px;text-decoration:none;transition:all .3s;display:flex;position:fixed;bottom:40px;right:40px;box-shadow:2px 2px 10px #0003}.whatsapp-float:hover{color:#fff;background-color:#128c7e;transform:scale(1.1)}.whatsapp-float i{margin-top:2px}@keyframes pulse-whatsapp{0%{transform:scale(1);box-shadow:0 0 #25d366b3}70%{transform:scale(1.05);box-shadow:0 0 0 15px #25d36600}to{transform:scale(1);box-shadow:0 0 #25d36600}}.whatsapp-pulse{animation:2s infinite pulse-whatsapp}