@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInFromLeft{0%{opacity:0;transform:translateX(-30px)}to{opacity:1;transform:translateX(0)}}@keyframes slideInFromRight{0%{opacity:0;transform:translateX(30px)}to{opacity:1;transform:translateX(0)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.3)}50%{opacity:1;transform:scale(1.05)}70%{transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes pulseGlow{0%,to{box-shadow:0 0 5px rgba(59,130,246,.5)}50%{box-shadow:0 0 20px rgba(59,130,246,.8),0 0 30px rgba(99,102,241,.6)}}@keyframes shimmer{0%{background-position:-200px 0}to{background-position:calc(200px + 100%) 0}}.animate-fade-in-up{animation:fadeInUp .6s ease-out forwards}.animate-slide-in-left{animation:slideInFromLeft .6s ease-out forwards}.animate-slide-in-right{animation:slideInFromRight .6s ease-out forwards}.animate-bounce-in{animation:bounceIn .8s ease-out forwards}.animate-pulse-glow{animation:pulseGlow 2s ease-in-out infinite}.animate-shimmer{background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);background-size:200px 100%;animation:shimmer 1.5s infinite}.quiz-option{transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.quiz-option:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.quiz-option:hover:before{left:100%}.quiz-option:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 10px 25px rgba(0,0,0,.1)}.quiz-option.selected{transform:scale(1.02);box-shadow:0 8px 25px rgba(59,130,246,.3)}.quiz-option.selected:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,rgba(59,130,246,.1),rgba(99,102,241,.1));border-radius:inherit;pointer-events:none}.loading-spinner{position:relative}.loading-spinner:before{content:"";position:absolute;inset:0;border-radius:50%;border:4px solid transparent;border-top-color:#3b82f6;animation:spin 1s linear infinite}.loading-spinner:after{content:"";position:absolute;inset:4px;border-radius:50%;border:4px solid transparent;border-right-color:#6366f1;animation:spin 1.5s linear infinite reverse}@keyframes spin{to{transform:rotate(1turn)}}.gradient-text{background:linear-gradient(45deg,#3b82f6,#6366f1,#8b5cf6,#3b82f6);background-size:300% 300%;background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:gradientShift 3s ease infinite}@keyframes gradientShift{0%,to{background-position:0 50%}50%{background-position:100% 50%}}.floating-particles{position:absolute;width:100%;height:100%;overflow:hidden;pointer-events:none}.particle{position:absolute;width:4px;height:4px;background:rgba(59,130,246,.3);border-radius:50%;animation:float 6s ease-in-out infinite}.particle:nth-child(2n){background:rgba(99,102,241,.3);animation-delay:-2s}.particle:nth-child(3n){background:rgba(139,92,246,.3);animation-delay:-4s}@keyframes float{0%,to{transform:translateY(0) rotate(0deg);opacity:0}10%{opacity:1}90%{opacity:1}50%{transform:translateY(-100px) rotate(180deg)}}