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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #111111;
    color: #f2f2f2;
    line-height: 1.6;
}

img {
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font-family: inherit;
}

.encabezado {
    background-color: #181818;
    border-bottom: 1px solid #3b3b3b;
}

.contenedor-encabezado {
    width: 90%;
    max-width: 1200px;
    min-height: 125px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.identidad {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    width: 105px;
    height: 105px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid #777777;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.04);
}

.nombre-gimnasio h1 {
    font-size: 30px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #e2e2e2;
}

.nombre-gimnasio p {
    color: #aaaaaa;
    font-size: 15px;
}

.frase-encabezado {
    max-width: 330px;
    color: #bbbbbb;
    text-align: right;
    font-style: italic;
}

.menu-principal {
    background-color: #222222;
    border-bottom: 1px solid #444444;
}

.menu-principal ul {
    width: 90%;
    max-width: 1200px;
    margin: auto;
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.menu-principal a {
    display: block;
    padding: 16px 22px;
    color: #eeeeee;
    font-size: 14px;
    font-weight: bold;
    text-transform: uppercase;
}

.menu-principal a:hover {
    background-color: #383838;
}

.menu-principal .activo {
    background-color: #d4d4d4;
    color: #111111;
}

.portada {
    min-height: 560px;
    background:
        linear-gradient(
            rgba(0, 0, 0, 0.55),
            rgba(0, 0, 0, 0.82)
        ),
        url("../imagenes/gimnasio-principal.png");
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
}

.contenido-portada {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

.contenido-portada h2 {
    max-width: 750px;
    font-size: 56px;
    line-height: 1.1;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 2px 2px 8px #000000;
}

.contenido-portada p {
    max-width: 650px;
    margin-top: 22px;
    color: #d0d0d0;
    font-size: 19px;
}

.boton {
    display: inline-block;
    margin-top: 28px;
    padding: 13px 27px;
    background-color: #d9d9d9;
    color: #111111;
    border: 2px solid #d9d9d9;
    font-weight: bold;
    text-transform: uppercase;
}

.distribucion {
    width: 90%;
    max-width: 1200px;
    margin: 50px auto;
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(250px, 1fr);
    gap: 35px;
}

.contenido-principal {
    min-width: 0;
}

.seccion {
    margin-bottom: 45px;
}

.titulo-seccion {
    margin-bottom: 22px;
    padding-left: 15px;
    border-left: 5px solid #bdbdbd;
    font-size: 32px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.subtitulo {
    margin-bottom: 12px;
    color: #ffffff;
}

.texto {
    margin-bottom: 18px;
    color: #bcbcbc;
}

.contenedor-tarjetas {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.tarjeta {
    background-color: #1c1c1c;
    border: 1px solid #3d3d3d;
    overflow: hidden;
    transition:
        transform 0.3s ease,
        border-color 0.3s ease;
}

.tarjeta:hover {
    transform: translateY(-4px);
    border-color: #777777;
}

.tarjeta img {
    display: block;
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.contenido-tarjeta {
    padding: 22px;
}

.contenido-tarjeta h3 {
    margin-bottom: 10px;
    text-transform: uppercase;
}

.contenido-tarjeta p {
    color: #b8b8b8;
}

.barra-lateral {
    padding: 25px;
    align-self: start;
    background-color: #1c1c1c;
    border: 1px solid #3d3d3d;
}

.barra-lateral h2 {
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid #555555;
    font-size: 21px;
    text-transform: uppercase;
}

.barra-lateral h3 {
    margin-top: 22px;
    margin-bottom: 8px;
    color: #ffffff;
}

.barra-lateral p {
    margin-bottom: 7px;
    color: #b9b9b9;
}

.barra-lateral ul {
    padding-left: 20px;
    color: #b9b9b9;
}

.barra-lateral li {
    margin-bottom: 6px;
}

.imagen-lateral {
    display: block;
    width: 100%;
    margin-top: 22px;
    border: 1px solid #444444;
}

.logo-lateral {
    display: block;
    width: 180px;
    margin: 25px auto 0;
}

.encabezado-pagina {
    min-height: 310px;
    background:
        linear-gradient(
            rgba(0, 0, 0, 0.55),
            rgba(0, 0, 0, 0.82)
        ),
        url("../imagenes/gimnasio-1.png");
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    border-bottom: 1px solid #333333;
}

.encabezado-pagina div {
    width: 90%;
    max-width: 1000px;
    margin: auto;
}

.encabezado-pagina h2 {
    font-size: 48px;
    text-transform: uppercase;
    text-shadow: 2px 2px 8px #000000;
}

.encabezado-pagina p {
    color: #d0d0d0;
    font-size: 18px;
}

.caja-informacion {
    margin-bottom: 25px;
    padding: 30px;
    background-color: #1c1c1c;
    border-left: 5px solid #9f9f9f;
    border-top: 1px solid #3d3d3d;
    border-right: 1px solid #3d3d3d;
    border-bottom: 1px solid #3d3d3d;
    transition: border-left-color 0.3s ease;
}

.caja-informacion:hover {
    border-left-color: #ffffff;
}

.caja-informacion h3 {
    margin-bottom: 12px;
    font-size: 25px;
    text-transform: uppercase;
}

.caja-informacion p {
    color: #bdbdbd;
}

.galeria {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.galeria img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border: 1px solid #444444;
    transition: opacity 0.3s ease;
}

.galeria img:hover {
    opacity: 0.85;
}

.multimedia {
    padding: 25px;
    background-color: #1c1c1c;
    border: 1px solid #3d3d3d;
}

.multimedia audio,
.multimedia video {
    width: 100%;
    margin-top: 15px;
}

.multimedia video {
    max-height: 500px;
    background-color: #000000;
    border: 1px solid #444444;
}

.precio {
    margin-top: 15px;
    color: #ffffff;
    font-size: 22px;
    font-weight: bold;
}

.lista-servicios {
    margin-top: 15px;
    padding-left: 20px;
    color: #bdbdbd;
}

.formulario {
    padding: 30px;
    background-color: #1c1c1c;
    border: 1px solid #3d3d3d;
}

.grupo-formulario {
    margin-bottom: 20px;
}

.grupo-formulario label {
    display: block;
    margin-bottom: 7px;
    font-weight: bold;
}

.grupo-formulario input,
.grupo-formulario textarea,
.grupo-formulario select {
    width: 100%;
    padding: 13px;
    border: 1px solid #555555;
    background-color: #0e0e0e;
    color: #ffffff;
}

.grupo-formulario input:focus,
.grupo-formulario textarea:focus,
.grupo-formulario select:focus {
    outline: none;
    border-color: #bdbdbd;
}

.grupo-formulario textarea {
    min-height: 130px;
    resize: vertical;
}

.boton-formulario {
    padding: 13px 25px;
    border: 2px solid #ffffff;
    background-color: #ffffff;
    color: #111111;
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
}

.redes {
    display: grid;
    gap: 12px;
    margin-top: 20px;
}

.enlace-red {
    display: block;
    padding: 14px;
    background-color: #282828;
    border: 1px solid #4b4b4b;
    text-align: center;
    font-weight: bold;
}

.tabla-contenedor {
    overflow-x: auto;
    border: 1px solid #3b3b3b;
}

.tabla-horarios {
    width: 100%;
    border-collapse: collapse;
    background-color: #181818;
}

.tabla-horarios th,
.tabla-horarios td {
    padding: 14px;
    border: 1px solid #3b3b3b;
    text-align: left;
}

.tabla-horarios th {
    background-color: #2c2c2c;
    color: #ffffff;
}

.tabla-horarios td {
    color: #c0c0c0;
}

.tabla-horarios tbody tr:hover td {
    background-color: #252525;
}

.pie-pagina {
    padding: 40px 0 20px;
    background-color: #161616;
    border-top: 1px solid #3a3a3a;
}

.contenido-pie {
    width: 90%;
    max-width: 1200px;
    margin: auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.contenido-pie h3 {
    margin-bottom: 12px;
    text-transform: uppercase;
}

.contenido-pie p,
.contenido-pie a {
    color: #adadad;
}

.contenido-pie a:hover {
    color: #ffffff;
}

.derechos {
    width: 90%;
    max-width: 1200px;
    margin: 30px auto 0;
    padding-top: 20px;
    border-top: 1px solid #303030;
    color: #858585;
    text-align: center;
    font-size: 14px;
}

@media screen and (max-width: 900px) {

    .contenedor-encabezado {
        padding: 20px 0;
        flex-direction: column;
        text-align: center;
    }

    .frase-encabezado {
        text-align: center;
    }

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

    .contenedor-tarjetas {
        grid-template-columns: repeat(2, 1fr);
    }

    .contenido-portada h2 {
        font-size: 44px;
    }

}

@media screen and (max-width: 600px) {

    .identidad {
        flex-direction: column;
    }

    .menu-principal ul {
        width: 100%;
        flex-direction: column;
        text-align: center;
    }

    .menu-principal a {
        padding: 13px;
        border-bottom: 1px solid #303030;
    }

    .portada {
        min-height: 480px;
        text-align: center;
    }

    .contenido-portada h2 {
        font-size: 34px;
    }

    .contenido-portada p {
        font-size: 17px;
    }

    .contenedor-tarjetas,
    .galeria,
    .contenido-pie {
        grid-template-columns: 1fr;
    }

    .encabezado-pagina h2 {
        font-size: 35px;
    }

    .titulo-seccion {
        font-size: 27px;
    }

    .galeria img {
        height: 230px;
    }

}