*{margin:0;padding:0;box-sizing:border-box}body,html{width:100%;height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f7fa}#app{width:100%;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn-primary{background:linear-gradient(135deg,#06f,#39f);color:#fff;border:none;padding:10px 20px;border-radius:4px;cursor:pointer;transition:all .3s}.btn-primary:hover{opacity:.9;transform:translateY(-2px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:#f0f0f0;color:#333;border:1px solid #ddd;padding:10px 20px;border-radius:4px;cursor:pointer;transition:all .3s}.btn-secondary:hover{background:#e8e8e8}.card{background:#fff;border-radius:8px;box-shadow:0 2px 12px rgba(0,0,0,.1);padding:20px;transition:all .3s}.card:hover{box-shadow:0 4px 20px rgba(0,0,0,.15)}@media(max-width:768px){.container{padding:0 15px}}