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

:root{
    --gte:#00a2ff;
    --bg:#050505;
    --card:#111111;
    --text:#ffffff;
}

body{
    background:var(--bg);
    color:var(--text);
    font-family:Arial, Helvetica, sans-serif;
}

/* HEADER */

.sub-header{
    padding:20px 30px;
    border-bottom:2px solid var(--gte);
}

.back-btn{
    color:white;
    text-decoration:none;
    font-weight:bold;
}

.back-btn:hover{
    color:var(--gte);
}

/* TITULO */

.page-title{
    text-align:center;
    padding:50px 20px;
}

.page-title h1{
    font-size:4rem;
    margin-bottom:10px;
}

.page-title p{
    color:#ccc;
}

/* BOTONES RONDAS */

.round-selector{
    display:flex;
    justify-content:center;
    gap:15px;
    flex-wrap:wrap;
    margin-bottom:40px;
}

.round-selector button{

    background:var(--card);

    border:2px solid var(--gte);

    color:white;

    padding:12px 25px;

    border-radius:8px;

    cursor:pointer;

    font-weight:bold;

    transition:.2s;
}

.round-selector button:hover{

    background:var(--gte);

    color:black;
}

/* TABLAS */

.results-section{

    max-width:1300px;

    margin:0 auto 50px;

    padding:0 20px;
}

.results-section h2{

    color:var(--gte);

    margin-bottom:15px;

    text-align:center;

    font-size:2rem;
}

table{

    width:100%;

    border-collapse:collapse;

    background:#111;

    border:1px solid #222;
}

thead{

    background:var(--gte);

    color:black;
}

th{

    padding:14px;

    font-size:14px;
}

td{

    padding:12px;

    text-align:center;

    border-bottom:1px solid #222;
}

tbody tr:hover{

    background:#181818;
}

/* PODIO */

tbody tr:nth-child(1){

    background:rgba(255,215,0,.08);
}

tbody tr:nth-child(2){

    background:rgba(192,192,192,.06);
}

tbody tr:nth-child(3){

    background:rgba(205,127,50,.06);
}

/* MOBILE */

@media(max-width:768px){

    .page-title h1{

        font-size:2.5rem;
    }

    .results-section{

        overflow-x:auto;
    }

    table{

        min-width:700px;
    }

}
```