@import url('https://fonts.googleapis.com/css?family=Space+Mono');
@import url('https://fonts.googleapis.com/css?family=Roboto');

.container .panel-footer                { margin-top:20px;}


* {
    box-sizing: border-box;
	outline: none;
}
.clearfix {
    clear: both;
    display: block;
}
.hidden { display: none; }

body {
    margin: 0;
	font-size:16px;
}

#nombre {
	font-family:Roboto;
	font-size:0.8em;
	display:block;
	text-align:center;
}

#calculadora {
    color: white;
    font-family: 'Space Mono', monospace;
    background: lightgrey ;
    overflow: auto;
    width: 100%;
    max-width: 450px;
    min-width: 290px;
    margin: 20px auto;
    text-align: center;
    padding: 15px 15px;
    border-radius: 5px;
    border: 0;
    box-shadow: 0px 10px 5px -5px rgba(0, 0, 0, .75);

}
#calculadora_display {
    text-align: right;
    border: 0;
    width: 100%;
    padding: 10px;
	margin-bottom:20px;
    font-size: 2em;
    border-radius: 10px;
    border: 1px solid #eee;
    background: #b1d5b9;
    color: darkslategrey;
}
#calculadora_header {
   background: #8A8;
}
#calculadora_body #calculadora_display {
    margin-bottom: 15px;
}
#calculadora_body div {
    display: inline-block;
}
#calculadora_body_numbers {
    float: left;
    width: 80%;
    display: flex;
    flex-wrap: wrap;
}
#calculadora_body_operators_unary {
	display: flex;
    flex-wrap: wrap;
}
#calculadora_body_operators_binary {
    display: flex;
	flex-wrap: wrap;
}
input[type="submit"] {
    color: #AAA;
    background: #333;
    padding-top: 10px;
    padding-bottom: 10px;
    border: none;
	font-family:'Roboto', sans-serif;
    color: white;
	border-radius: 4px;
	font-size:1em;
	margin: 0 2px 4px;
}
input.number {
    flex-grow: 1;
    width: 30%;
    background: linear-gradient(to bottom, rgb(67, 67, 67) 0%,rgb(0, 0, 0) 100%);
}
input.number.igual {
    flex-grow: 25;
}
input.number.clear {
	background: linear-gradient(to bottom, rgb(233, 43, 43) 0%,rgb(194, 42, 42) 100%);
}
input.operator {
    width: 100%;
   background: linear-gradient(to bottom, rgb(122, 122, 122) 0%,rgb(88, 88, 88) 100%);
}
input.operator.unary {
    width: 15%;
	flex-grow: 1;
}