*{
    margin:0;
    padding:0;
    box-sizing: border-box;
}

body{
    font-family: 'open sans';
}

.contenedor{
    padding: 60px 0;
    width: 90%;
    max-width: 1000px;
    margin: auto;
    overflow: hidden;
}

.titulo{
    color: #ff0000;
    font-size: 30px;
    text-align: center;
    margin-bottom: 60px;
}

/* Header */

header{
    width: 100%;
    height: 600px;
    background: #0576e686; /* fallback for old browsers */
  background: -webkit-linear-gradient(to right, #0576e685, #021c796e); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
  background: linear-gradient(to right, #0576e685, #021c796e); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    background-size: cover;
    background-attachment: fixed;
    position: relative;
}

nav{
    text-align: right;
    padding: 30px 50px 0 0;
}

nav > a{
    color:#fff;
    font-weight: 300;
    text-decoration: none;
    margin-right: 10px;
}

nav > a:hover{
    text-decoration: underline;
}

header .textos-header{
    display: flex;
    height: 430px;
    width: 100%;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
}

.textos-header h1{
    font-size: 50px;
    color: #ff0000;
}

.textos-header h3{
    font-size: 30px;
    font-weight: 300;
    color: #fff;
}

.wave{
    position: absolute;
    bottom: 0;
    width: 100%;
}

footer{
    background: #414141;
    padding: 60px 0 30px 0;
    margin: auto;
    overflow: hidden;
}

.contenedor-footer{
    display: flex;
    width: 90%;
    justify-content: space-evenly;
    margin: auto;
    padding-bottom: 50px;
    border-bottom: 1px solid #ccc;
}

.content-foo{
    text-align: center;
}

.content-foo h4{
    color: #fff;
    border-bottom: 3px solid #001aff;
    padding-bottom: 5px;
    margin-bottom: 10px;
}

.content-foo p{
    color: #ccc;
}

.titulo-final{
    text-align: center;
    font-size: 24px;
    margin: 20px 0 0 0;
    color: #9e9797;
}

.info-basica h2{
  color: #ff0000;
}

.info-basica{
  margin-right:30px;
  margin-left:30px;
}

.cerebro-adiccion h2{
  color: #ff0000;
}

.cerebro-adiccion{
  margin-right:30px;
  margin-left:30px;
}

.causas-señales h2{
  color: #ff0000;
}

.causas-señales{
  margin-right:30px;
  margin-left:30px;
}

.consecuencias h2{
  color: #ff0000;
}

.consecuencias{
  margin-right:30px;
  margin-left:30px;
}

.ayuda-prevencion h2{
  color: #ff0000;
}

.ayuda-prevencion{
  margin-right:30px;
  margin-left:30px;
}

.bibliografia h2{
  color: #ff0000;
}

.bibliografia{
  margin-right:30px;
  margin-left:30px;
}