:root {
    /* Variables*/
    /* COLOR */
    --color-bg: #333;
    --color-text: white;
    --color-primary: #f1efec;
    --color-secundary: #eeeeee;
    --color-border: #ffffff;
    --color-button: #5c5c5c;

    /* TAMAÑO TIPOGRAFÍA */
    --font-family-base: 'Poppins', 'Arial', sans-serif;
    --font-size-S: 0.9rem;
    --font-size-M: 1.2rem;
    --font-size-L: 1.5rem;
    --font-size-XL: 2rem;
    --font-size-XXL: 3rem;
    
    /* TAMAÑO ESPACIADO */
    --spacing-S: 0.5rem;
    --spacing-M: 1rem;
    --spacing-L: 2rem;
    --spacing-XL: 3rem;
    --spacing-XXL: 4rem;

    /* BORDES */
    --border-radius: 0.7rem;
}

/* Fuentes globales*/
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@100&display=swap');

/* SCROLL */
html {
    scroll-behavior: smooth;
}

/* Estilos generales */
body {
    font-family: var(--font-family-base);
    margin: 0;
    padding: 0;
}

footer {
    background-color: var(--color-bg);
    color: var(--color-text);
    padding: var(--spacing-L);
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    padding-right: var(--spacing-XL);
    display: flex;
    gap: var(--spacing-L);
}

nav ul li a {
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-M);
}

section {
    padding-right: var(--spacing-L);
    padding-left: var(--spacing-L);
}

h1 {
    font-size: 3rem;
    text-align: center;
}

h2 {
    font-size: var(--font-size-L);
    text-align: center;
}

h3 {
    font-size: var(--font-size-M);
    text-align: center;
}

p {
    font-size: var(--font-size-S);
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

img {
    max-width: 100%; height: auto;
}

/* Estilos de secciones */

/* MENU FIJO */

header {
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--spacing-S);
    padding: var(--spacing-L);
    background-color: rgba(51, 51, 51, 0.9);
}

/* LOGOTIPO */
.logo-sofa {
    width: 15vw;
    height: 15vw;
    object-fit: contain;
    cursor: pointer;
}

/*_____________________________________ MENU HAMBURGUESA _____________________________________*/ 

    .nav-links {
        display: none;
    }
    
    #menu-desplegable {
        position: absolute;
        opacity: 0;
        z-index: -1;
    }

    .menu-desplegable-check .close-icon {
        display: none;
        position: fixed;
        top: 0.7rem;
        right: 1.5rem;
        font-size: 2.5rem;
        color: white;
        cursor: pointer;
    }

    .menu-icon {
        display: inline-block;
        cursor: pointer;
        position: fixed;
        top: 0.8rem;
        right: 1.5rem;
        width: 12vw;
        height: auto;
    }

    #menu-desplegable:checked ~ .menu-toggle .menu-icon {
        display: none;
    }

    #menu-desplegable:checked ~ .menu-toggle .close-icon {
        display: block;
    }

    #menu-desplegable:checked ~ .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: rgba(51, 51, 51, 0.9);
        text-align: center;
        z-index: 999;
    }

    .nav-links li {
        width: 100%;
        margin: var(--spacing-S) 0;
    }

    .nav-links li a {
        color: white;
        font-size: var(--font-size-L);
        text-decoration: none;
        display: block;
        padding: var(--spacing-S);
        transition: background-color 0.3s ease, padding 0.3s ease;
    }

    .nav-links li a:hover {
        background-color: var(--color-primary);
        color: var(--color-bg);
    }
/*_____________________________________ MENU HAMBURGUESA FIN_____________________________________*/ 

.navigation a:hover {
    color: var(--color-bg);
}
.navigation a {
    transition: color 0.3s ease-in-out;
}

.banner img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; 
    z-index: -1;
}
    /* Animación */
    .arrow {
        position: absolute;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        font-size: 3rem;
        color: var(--color-text);
        animation: bounce 1.5s infinite;
    }

    .arrow a {
        text-decoration: none;
        color: var(--color-text);
    }

    @keyframes bounce {
        0%, 20%, 50%, 80%, 100% {
            transform: translate(-50%, 0);
        }
        40% {
            transform: translate(-50%, -15px);
        }
        60% {
            transform: translate(-50%, -8px);
        }
    }

/* INICIO */

#iniciohome {
    position: relative;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--color-text);
}

    #iniciohome h1, p {
        position: relative;
        z-index: 1;
        font-weight: normal;
    }


    #iniciohome p {
        font-size: var(--font-size-L);
    }
    /* Animación */
    @keyframes slide-in {
        from {
            transform: translateY(20px);
            opacity: 0;
        }
        to {
            transform: translateY(0);
            opacity: 1;
        }
    }
    
    #iniciohome h1,
    #iniciohome p {
        animation: slide-in 0.5s forwards;
    }

/* PRODUCTOS */

#productoshome {
    padding-top: var(--spacing-L);
    padding-right: var(--spacing-M);
    padding-left: var(--spacing-M);
    padding-bottom: var(--spacing-L);
}

.producto {
    padding-right: var(--spacing-L);
    padding-left: var(--spacing-L);
    padding-bottom: var(--spacing-XL);
}

.producto img {
    border-radius: var(--border-radius);
}
    /* Hover */
    .imagen-producto {
        position: relative;
        width: 100%; 
        aspect-ratio: 7/9;
        overflow: hidden;
    }
    
    .img-frontal, .img-detras {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        display: none;
    }
    
    .img-frontal {
        display: block;
    }
    
    .producto:hover .img-frontal {
        display: none;
    }
    
    .producto:hover .img-detras {
        display: block;
    }
    

/* CARACTERISTICAS */
#caracteristicashome {
    background-color: var(--color-primary);
    padding-top: var(--spacing-L);
    padding-bottom: var(--spacing-XL);
}

.caracteristicas {
    padding: var(--spacing-L);
    background-color: var(--color-border);
    border: 1px solid var(--color-border);
    border-radius: var(--spacing-L);
    text-align: center;
    box-shadow: 0 2px 10px rgba(100, 100, 100, 0.1);
}

.caracteristicas img{
    border-radius: 50%;
    width: 30vw;
    height: auto;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.caracteristicas img:hover {
    transform: scale(1.1);
}

.caracteristicas:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.caracteristicas-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: stretch;
    gap: var(--spacing-L);
    padding-bottom: 2rem;
}

.caracteristicas {
    box-sizing: border-box;
    text-align: center;
}

/* VIDEO */
.video-yt {
    width: 100%;
    max-width: 100%;
    height: auto;
    aspect-ratio: 16/9;
}

/* PLANES-PRECIOS-ENVIO */
#envioshome {
    padding-top: var(--spacing-L);
    padding-bottom: var(--spacing-L);
}

#envioshome .planes-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-S);
    text-align: center;
    margin: 0 auto;
}

.plan {
    background-color:  var(--color-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-M);
    width: 90%;
    margin-bottom: var(--spacing-L);
    transition: box-shadow 0.3s ease-in-out;
}
    /* Hover */
    .plan:hover {
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }

.plan p {
    padding-bottom: var(--spacing-L);
}

.plan .precio {
    font-size: 1.8rem;
    color: burlywood;
}

.boton {
    background-color: var(--color-button);
    color: var(--color-text);
    padding: 15px 40px;
    border: none;
    border-radius: var(--border-radius);
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
    margin-bottom: var(--spacing-M);
}

.boton:hover {
    background-color: var(--color-bg);
}

    /* Hover */
    .boton {
        transition: background-color 0.3s ease, transform 0.3s ease;
    }
    
    .boton:hover {
        background-color: var(--color-bg);
        transform: scale(1.05);
    }

    
/* VALORACIONES */
#valoracioneshome {
    padding-top: var(--spacing-S);
    padding-bottom: var(--spacing-L);
}

.valoracion {
    padding: var(--spacing-L);
    background-color: #f9f9f9;
    text-align: center;
    border-radius: var(--border-radius);
}

.valoracion img {
    width: 5rem;
    height: 5rem;
    margin-bottom: var(--spacing-M);
}

.valoracion-1, .valoracion-3 {
    display: none;
}

/* CONTACTO - FORMULARIO */

#contactohome {
    padding-top: var(--spacing-L);
    padding-bottom: var(--spacing-XL);
    background-color: var(--color-secundary);
}

form {
    display: flex;
    flex-direction: column;
    max-width: 95%;
    margin: 0 auto;
    font-size: var(--spacing-M);
}

form input, form textarea {
    margin-bottom: var(--spacing-L);
    padding: var(--spacing-S);
    border: none;
    border-radius: var(--border-radius);
    width: 90%;
    display: block;
}

form textarea {
    height: 5rem;
}

form button {
    padding: var(--spacing-M);
    background-color: var(--color-button);
    color: var(--color-text);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    width: 100%;
}

/* Footer */
footer {
    background-color: var(--color-bg);
    color: var(--color-text);
    text-align: center;
}

footer a {
    text-decoration: none;
    color: var(--color-text);
}

footer p {
    font-size: 0.7rem;
}

/* --- A partir de aquí, Media Queries --- */
/* Mvl o Tablet pequeña (más de 480px) */
@media screen and (min-width: 480px){

    header .logo-sofa {
        width: 10vw;
    }

    .menu-icon {
        top: 0.6rem;
        width: 10vw;
    }

    .caracteristicas img {
        width: 25vw;
    }

}

/* Pantallas o tablets grandes (más de 768px) */
@media screen and (min-width: 768px) {

    header {
        padding: var(--spacing-XL);
    }


    header .logo-sofa {
        width: 8vw;
    }

    h2 {
        font-size: var(--font-size-XL);
        margin-bottom: var(--spacing-XL)
    }
    .menu-icon {
        top: 1rem;
        width: 6vw;
    }

    .productos-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .productos-grid .producto {
        flex-basis: 40%;
    }

    .caracteristicas img{
        width: 15vw;
    }
    
    .caracteristica-1,
    .caracteristica-2, 
    .caracteristica-3,
    .caracteristica-4 { 
        flex: 1 1 calc(50% - 2rem);
        max-width: calc(50% - 2rem);
    }

    .caracteristica-5 {
        flex: 1 1 100%;
        max-width: calc(100% - 2rem);
    }

    .valoracionesflex {
        display: flex;
        gap: var(--spacing-M);
    }

    .valoracion img {
        width: 4rem;
        height: 4rem;
        margin-bottom: var(--spacing-M);
    }

    .valoracion-3 {
        display: block;
    }

    form {
        max-width: 80%;
        align-content: center;
    }
    
    form input, form textarea {
        width: 100%;
    }
    
    form button {
        width: 100%;
    }
}

/* Desktop grande (más de 1025px) */
@media screen and (min-width: 1025px) {
    h1 {
        font-size: 4rem;
    }
    
    h3 {
        font-size: var(--font-size-L);
    }

    p {
        font-size: var(--font-size-M);
    }

    /* Ocultar el menú hamburguesa */
      /*  .menu-desplegable-check {
        display: none; 
    } */
    /* Mostrar el menú estándar*/
    .nav-links {
        display: flex;
        flex-direction: row;
        gap: var(--spacing-L);
        position: static;
        padding: var(--spacing-M);
    }
    
    nav ul {
        display: flex;
        padding-right: 0;
    }

    header .logo-sofa {
        width: 4vw;
    }

    .menu-icon {
        display: none;
    }
    
    .navigation {
        display: flex;
    }

    nav ul li a {
        font-size: var(--font-size-M);
    }

    .nav-links {
        display: flex;
    }

    .producto {
    padding-bottom: var(--spacing-XXL);
    }

    .productos-grid .producto {
        flex-basis: 25%;
    }

    .caracteristicas {
        flex: 1 1 calc(33.33% - var(--spacing-L));
        max-width: calc(33.33% - var(--spacing-L));
        box-sizing: border-box;
        text-align: center;
    }

    .caracteristica-4,
    .caracteristica-5 {
        flex: 1 1 calc(50% - var(--spacing-L));
        max-width: calc(50% - var(--spacing-L));
        box-sizing: border-box;
        text-align: center;
    }

    .boton {
        margin-bottom: var(--spacing-L);
    }

    #envioshome .planes-grid {
        display: flex;
        justify-content: space-around;
        align-items: center;
        gap: var(--spacing-L);
        flex-wrap: nowrap;
    }
    .valoracion-1 {
        display: block;
    }
    
    .valoracionesflex {
        justify-content: space-between;
        align-items: flex-start;
        gap: var(--spacing-L);
        flex-wrap: nowrap;
        padding-bottom: 5rem;
    }

    .valoracion {
        display: flex;
        flex-direction: column;
        align-items: center;
        flex: 1;
        margin-bottom: 0;
        text-align: center;
    }

    .valoracion img {
        width: 6rem;
        height: 6rem;
        margin-bottom: var(--spacing-L);
    }

    form {
        max-width: 50%;
    }

    footer p {
        font-size: var(--font-size-M);
    }
}