*{
    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 */
/* ========================= */

.topbar{
    height:70px;
    display:flex;
    align-items:center;
    padding:0 30px;
    border-bottom:2px solid var(--gte
);
    background:#050505;
}

.logo{
    display:flex;
    align-items:center;
}

.logo img{
    height:45px;
    transition:.2s;
}

.logo:hover img{
    transform:scale(1.05);
}

/* ========================= */
/* BANNER */
/* ========================= */

.banner{

    height:500px;

    background:
    linear-gradient(
        rgba(0,0,0,.45),
        rgba(0,0,0,.75)
    ),
    url("imagenes/banner-gte.jpg");

    background-size:cover;
    background-position:center;
    background-repeat:no-repeat;

    display:flex;
    justify-content:center;
    align-items:center;

    text-align:center;
}

.banner h1{

    font-size:6rem;
    font-weight:700;

    margin-bottom:15px;

    color:white;

    text-shadow:0 0 25px rgba(0,0,0,.7);
}

.banner p{

    font-size:1.3rem;

    color:#ddd;
}

/* ========================= */
/* MENU */
/* ========================= */

.menu-grid{

    max-width:1200px;

    margin:auto;

    padding:60px 20px 80px;

    display:grid;

    grid-template-columns:
    repeat(4,1fr);

    gap:25px;
}

.menu-card{

    background:var(--card);

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

    border-radius:12px;

    text-decoration:none;

    color:white;

    text-align:center;

    padding:40px 20px;

    transition:.25s;
}

.menu-card:hover{

    transform:translateY(-6px);

    background:#181818;
}

.menu-card h3{

    font-size:1.2rem;
}

/* ========================= */
/* RESPONSIVE */
/* ========================= */

@media(max-width:900px){

    .banner{

        height:320px;
    }

    .banner h1{

        font-size:3rem;
    }

    .banner p{

        font-size:1rem;
    }

    .menu-grid{

        grid-template-columns:1fr;

        padding:40px 20px;
    }

}
/* ========================= */
/* CALENDARIO */
/* ========================= */

.sub-header{
    padding:20px 30px;
    border-bottom:1px solid var(--gte);
}

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

.page-title{
    text-align:center;
    padding:60px 20px;
}

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

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

.calendar-grid{

    max-width:1400px;

    margin:auto;

    padding:20px;

    display:grid;

    grid-template-columns:
    repeat(auto-fit,minmax(350px,1fr));

    gap:30px;
}

.race-card{

    height:260px;

    background-size:cover;
    background-position:center;

    border-radius:12px;

    overflow:hidden;

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

    position:relative;
}

.race-overlay{

    position:absolute;

    inset:0;

    background:
    linear-gradient(
        rgba(0,0,0,.2),
        rgba(0,0,0,.9)
    );

    display:flex;
    align-items:flex-end;
}

.race-info{
    padding:25px;
    width:100%;
}

.race-info span{

    color:var(--gte);

    font-weight:bold;
}

.race-info h2{

    margin:10px 0;

    font-size:2rem;
}

.race-info p{

    margin-bottom:20px;

    color:#ddd;
}

.results-btn{

    background:var(--gte);

    color:black;

    border:none;

    padding:12px 22px;

    font-weight:bold;

    border-radius:6px;

    cursor:pointer;
}

.results-btn.disabled{

    background:#333;

    color:#aaa;

    cursor:default;
}

@media(max-width:768px){

    .page-title h1{
        font-size:2.5rem;
    }

    .calendar-grid{
        grid-template-columns:1fr;
    }

}
.calendar-grid{
    max-width:1400px !important;
    margin:0 auto !important;
    padding:20px !important;

    display:grid !important;

    grid-template-columns:
    repeat(auto-fit,minmax(450px,1fr)) !important;

    gap:30px !important;
}

.race-card{
    height:300px !important;

    border-radius:12px;

    overflow:hidden;

    border:2px solid #00c853;

    background-size:cover !important;
    background-position:center !important;

    position:relative;
}

.race-overlay{
    position:absolute;
    inset:0;

    display:flex;
    align-items:flex-end;

    background:
    linear-gradient(
        transparent,
        rgba(0,0,0,.85)
    );
}

.race-info{
    padding:25px;
    width:100%;
}

.race-info h2{
    font-size:2rem;
    margin:10px 0;
}

.results-btn{
    margin-top:15px;
}