:root{
        --color-marron-oscuro:#473521;
        --color-marron-claro:#5F4B36;
        --color-negro:#262626;
        --color-blanco:#F4F2E6;
        --color-azul:#01C1F7;
        --color-azul-ocuro:#0073E6;
        --color-dorado:#FAC660;

        /*
        * light
        */
        --body-bg-color:rgba(255, 255, 255, 0.8); 
        --body-bg-blend-mode:lighten;
        --accent-animation: none;
        --accent-2-animation: none;
        --accent-3-animation: none;
        --paw-content: url(../img/paw.png);
        --openMenu-content: url(../img/icon-menu.png);
        --color-fuente:unset;
        --logo-header-background-color:unset;
        --menu-a-color: var(--color-marron-oscuro);
        --menu-a-hover-color: var(--color-marron-claro);
        --theme-toggle:Light;
    }

    #beta{ color:black} 
    
    .dark-mode{
        /*
        * Dark
        */
        --body-bg-color:rgba(0, 0, 0, 0.9); 
        --body-bg-blend-mode:darken;
        --accent-animation: flickerAzulClaro 1.5s infinite alternate;
        --accent-2-animation: flickerDorado 1.5s infinite alternate;
        --accent-3-animation: flickerAzulOscuro 1.5s infinite alternate;
        --paw-content: url(../img/paw-dark.png);
        --openMenu-content: url(../img/icon-menu-dark.png);
        --color-fuente:#F4F2E6;
        --logo-header-background-color: var(--color-blanco);
        --menu-a-color: var(--color-blanco);
        --menu-a-hover-color: var(--color-dorado);
        --theme-toggle:Dark;
    }

    .theme-toggle{
        content:var(--theme-toggle);
    }

    /* Theme toggle icons */
    .theme-toggle .theme-icon{ display:inline-flex; align-items:center; gap:6px; }
    .theme-toggle .icon{ display:inline-block; vertical-align:middle; }
    .theme-toggle .icon-moon{ display:none; }
    .dark-mode .theme-toggle .icon-moon{ display:inline-block; }
    .dark-mode .theme-toggle .icon-sun{ display:none; }

    .logo-header{
        background-color:var(--logo-header-background-color);
    }

    /* global reset to remove default browser white gaps */
    html{
    margin: 0;
        padding: 0;
        height: 100%;
    }
    body {
        color-scheme: light dark;

        font-family: "Inter", sans-serif;
        font-style: normal;
        font-weight: 400; 
        font-size: 1rem;
        background-image: url(../img/bg-logos.jpg);
        background-color: var(--body-bg-color);
        background-blend-mode:var(--body-bg-blend-mode);
        cursor: url('../img/cursor.png'), auto;
        color:var(--color-fuente);
    }
    a:hover, button:hover, #btn-top:hover, .submit-btn:hover, #acceptPrivacy:hover, #openMenu:hover {
        cursor: url('../img/pointer.png'), pointer;
    }
    h1{
        font-family: "Italiana", sans-serif;
        font-size: 64px;
        font-style: normal;
        font-weight:bold;
        line-height: normal;
        text-align: center;
    }

    h2{
        font-family: Inter;
        font-size: 32px;
        font-style: normal;
        font-weight: 500;
        line-height: normal;
        padding-top: 20px; text-align: center; 
    }

    h3{
        font-family: Inter;
        font-size: 16px;
        font-style: normal;
        font-weight: 600;
        line-height: normal;
    }

    h4{
        text-align: center;
    }

    p{
        font-family: Inter;
        font-size: 16px;
        font-style: normal;
        font-weight: 400;
        line-height: normal;
        text-align: center;
    }

    img{
        border-radius: 20px;
        margin: 40px 0px;
    }

    header{
        display: flex;
        justify-content: space-between;
        align-items: center; 
        height: 100px;   
        padding-left: 20px;
        padding-right: 20px;
    }

        hr{
            width: 80%;
        }

        /* Habilita scroll suave para anclas internas */
        html { scroll-behavior: smooth; }

        /* Estilos del checkbox en el formulario (alineación en una sola línea) */
        .form-group.form-checkbox{
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: nowrap;
        }
        .form-group.form-checkbox label{
            margin: 0;
            font-size: 0.95rem;
        }
        .form-group.form-checkbox a{
            color: inherit;
            text-decoration: underline;
        }
        
        input[type="text"]{
            background-color: var(--color-blanco);    
        }

        .form-group.form-checkbox input[type="checkbox"]{
            width: 1.05rem;
            height: 1.05rem;
        }

    .hero{
        background-image: url('../img/hero-banner2.jpg');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        height: 100vh; /* Ajusta la altura según necesites */
        display: flex;
        align-items: center; /* Centra el texto verticalmente */
        color: var(--color-blanco); /* Color de texto para contrastar */
        /* Añade un overlay oscuro si el texto es difícil de leer */
        background-color: rgba(0, 0, 0, 0.7); 
        background-blend-mode: multiply;
        padding: 1.25rem; 
    }

    .hero .hero-title {
        font-size: clamp(1.75rem, 4.5vw, 3.5rem);
        margin: 0 0 0.5rem;
        line-height: 1.05;
    }

    .hero .hero-subtitle {
        font-size: clamp(1rem, 2.2vw, 1.25rem);
        margin: 0;
        color:var(--color-blanco);
        opacity: 0.95;
    }

    .menu{
        display: none;
    }
    
    .img-fluid{
        max-width: 100%;
        height: auto;
    }

    .spacer{
        height: 80px;
        background-image: url(../img/bg.png);
    }

    .menu li  { padding: 15px 0; text-align: center; }
    .menu a { color: var(--menu-a-color); text-decoration: none; font-size: 1.5rem; }
    .menu a:hover{ color: var(--menu-a-hover-color); }

    #openMenu{
        content:var(--openMenu-content);
        display: flex;
    }

    #sidebar{
        display: none;
    }

    .copy{
        padding-bottom: 20px;
    }

    .accent{
        color:var(--color-azul);
        animation:var(--accent-animation);
    }

    .accent-2{
        color:var(--color-dorado);
        animation:var(--accent-2-animation);
    }

    .accent-3{
        color:var(--color-azul-ocuro);
        animation:var(--accent-3-animation);
    }
    

    .hero-content{
        max-width: 750px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        margin: auto;
    }

    .hero-content p{
        color: var(--color-blanco)
    }

    footer {
        background-color: rgb(30, 29, 29);
        color: var(--color-blanco)
    }

    footer h2{
        padding-top: 40px;
    }

    .container{
        padding: 20px 20px;
        max-width: 768px;
        margin: auto;
    }
    .container img,.menu-links-sidebar img{
        width: 100%;
        max-width: 100%;
        height: auto;
    }
    
    .form-group.form-checkbox{
        display: flex;
        align-items: center;
        gap: 0.5rem;
        flex-wrap: nowrap;
    }

    .form-group.form-checkbox label{
        margin: 0;
        font-size: 0.95rem;
    }

    .form-group.form-checkbox a{
        color: inherit;
        text-decoration: underline;
    }

    /* Ajuste opcional: tamaño del checkbox */
    .form-group.form-checkbox input[type="checkbox"]{
        width: 1.05rem;
        height: 1.05rem;
    }



/* Botón "Ir al top" */
#btn-top{
    position: fixed;
    right: 20px;
    bottom: 0;
    z-index: 9999;
    border: none;
    background: transparent;
    padding: 0;
    margin: 0;
    display: inline-block;
    width: auto;
    height: auto;
    line-height: 0;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transform: none;
    transition: opacity .25s ease;
}

#btn-top.show{
    opacity: 1;
    pointer-events: auto;
}

#btn-top img{
    display: block;
    margin: 0;
    padding: 0;
    max-height: 100px;
    height: auto;
    width: auto;
    transition: max-height 0.35s ease, box-shadow 0.25s ease;
    content:var(--paw-content);
}

#btn-top:hover img{
    max-height: calc(100px + 50px);
}

/* aplicar estilo laser cuando esté activado el modo oscuro via .dark-mode */
.dark-mode hr.laser {
    border: none;
    height: 2px;
    background: #000;
    position: relative;
    overflow: hidden;
    border-radius: 5px;
}

.dark-mode hr.laser::after {
    content: '';
    position: absolute;
    top: 0;
    left: -150px;
    width: 150px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,0,0,0.1), #ff0000, rgba(255,0,0,0.2), transparent);
    animation: barrido-laser 3s linear infinite;
    box-shadow: 0 0 5px #ff0000;
}
figcaption{
    text-align: center;
}
@media (prefers-color-scheme: dark) {
    .theme-toggle{
        display: none;
    }
    :root{
        /*
        * Dark
        */
        --body-bg-color:rgba(0, 0, 0, 0.9); 
        --body-bg-blend-mode:darken;
        --accent-animation: flickerAzulClaro 1.5s infinite alternate;
        --accent-2-animation: flickerDorado 1.5s infinite alternate;
        --accent-3-animation: flickerAzulOscuro 1.5s infinite alternate;
        --paw-content: url(../img/paw-dark.png);
        --openMenu-content: url(../img/icon-menu-dark.png);
        --color-fuente:#F4F2E6;
        --logo-header-background-color: var(--color-blanco);
        --menu-a-color: var(--color-blanco);
        --menu-a-hover-color: var(--color-dorado);
        --theme-toggle:Dark;
    }
    
    

    hr.laser {
        border: none;               /* Quitamos el borde por defecto */
        height: 2px;                /* Grosor de la línea */
        background: #111;           /* Color de fondo de la línea (la "oscuridad") */
        position: relative;
        overflow: hidden;           /* Para que el brillo no se salga de los bordes */
        border-radius: 5px;
    }

    hr.laser::after { 
        content: '';
        position: absolute;
        top: 0;
        left: -150px;               /* Empezamos fuera de la vista a la izquierda */
        width: 150px;               /* Ancho del "punto de luz" */
        height: 100%;
        /* Gradiente que crea el efecto de destello brillante */
        background: linear-gradient(
            90deg, 
            transparent, 
            rgba(255, 0, 0, 0.2),    /* Estela tenue */
            #ff0000,                /* Centro brillante (rojo láser) */
            rgba(255, 0, 0, 0.2),    /* Estela tenue */
            transparent
        );
        /* Aplicamos la animación */
        animation: barrido-laser 3s linear infinite;
        /* Añadimos un brillo extra (glow) */
        box-shadow: 0 0 10px #ff0000;
    }
}

@media (min-width: 800px) {
    /* menu superior */
    .menu{
        display:inline
    }

    #openMenu{
        display: none;
    }

    .menu ul{
        flex-direction: row;
        display: flex;
        list-style: none;
        text-decoration: none;
        font-size: 1.5rem;
        gap:15px;

    }
    .menu li a:hover{
        text-decoration:underline;
    }
    .menu li a{
        text-decoration: none;
    }

}

@media (min-width: 320px) {
    /* footer */
    footer .form-container {
        max-width: 400px;
        margin: 20px auto;
        padding: 30px;
        box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    }

    footer .form-group {
        display: flex;
        flex-direction: column;
        margin-bottom: 15px;
    }

    .form-group label {
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 8px;
    }

    form input {
        padding: 12px 16px;
        border-radius: 10px;
        outline: none;
        transition: all 0.3s ease;
    }

    form .submit-btn {
        width: 100%;
        padding: 14px;
        background-color: var(--color-marron-claro);
        color: var(--color-blanco);
        border: none;
        border-radius: 10px;
        font-weight: bold;
        cursor: pointer;
        margin-top: 10px;
    }
    
}