.flip-card{background-color:transparent;width:100%;height:400px;perspective:1000px}.flip-card-inner{position:relative;width:100%;height:100%;text-align:center;transition:transform .8s;transform-style:preserve-3d;border-radius:20px}.flip-card:hover .flip-card-inner{transform:rotateY(180deg)}.flip-card-back,.flip-card-front{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:20px;overflow:hidden}.flip-card-back{background:linear-gradient(135deg,#667eea,#764ba2);color:white;transform:rotateY(180deg);display:flex;flex-direction:column;justify-content:center;align-items:center;padding:2rem}.flip-card-back h3{margin-bottom:1rem;font-size:1.5rem;font-weight:700}.flip-card-back ul{list-style:none;padding:0;margin:0}.flip-card-back li{margin-bottom:.5rem;font-size:1rem}@media (max-width:768px){.flip-card{height:300px}.flip-card-back{padding:1.5rem}.flip-card-back h3{font-size:1.25rem}.flip-card-back li{font-size:.9rem}}