:root{--primary-color:#43467f;--accent-color:red;--background-color:#f9f9f9;--text-color:#333;--light-gray:#eaeaea;--white:#ffffff}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}body{color:var(--text-color);background:var(--background-color)}a{color:inherit;text-decoration:none}.container{max-width:1400px;margin:0 auto;padding:0 1.5rem}.btn{background-color:var(--primary-color);color:white;border-radius:4px;font-size:1rem;transition:background-color .3s}.btn:hover{background-color:#363966}.btn-danger{background-color:var(--accent-color)}.btn-danger:hover{background-color:#d10000}.card{background:var(--white);border-radius:8px;box-shadow:0 2px 8px 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