/* =========================
   ESTILOS GENERALES
========================= */
:root {
    --color-principal: #8EC432;
    --color-principal-oscuro: #76a62a;
    --color-texto: #1f1f1f;
    --color-fondo: #efefef;
    --color-blanco: #ffffff;
    --color-borde: #dcdcdc;
    --ancho-maximo: 1500px;
    --sombra: 0 8px 22px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: 'Raleway', Arial, sans-serif;
    font-weight: 500;
    color: var(--color-texto);
    background: var(--color-fondo);
}

body.menu-open {
    overflow: hidden;
}

a {
    text-decoration: none;
}

/* =========================
   CABECERA Y MENÚ
========================= */
.site-header {
    background: var(--color-blanco);
    border-top: 1px solid #cfcfcf;
}

.topbar {
    max-width: var(--ancho-maximo);
    margin: 0 auto;
    padding: 0 20px;
    min-height: 84px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    position: relative;
}

.logo-area {
    min-width: 170px;
}

.logo-link {
    color: var(--color-principal);
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.logo-link span {
    font-weight: 600;
}

.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.menu,
.submenu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.menu {
    display: flex;
    align-items: center;
    gap: 12px;
}

.menu > li {
    position: relative;
}

.menu > li > a,
.submenu-toggle {
    display: block;
    padding: 14px 10px;
    color: #111111;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: color 0.25s ease, background 0.25s ease;
    background: transparent;
    border: 0;
    font-family: inherit;
    cursor: pointer;
}

.submenu-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
}

.menu > li > a:hover,
.submenu-toggle:hover,
.menu > li > a:focus,
.submenu-toggle:focus {
    color: var(--color-principal-oscuro);
}

.has-submenu:hover .submenu {
    display: block;
}

.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-blanco);
    border-top: 4px solid var(--color-principal);
    box-shadow: var(--sombra);
    z-index: 1000;
}

.submenu li a {
    display: block;
    padding: 14px 16px;
    color: #111111;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-bottom: 1px solid #efefef;
}

.submenu li a:hover {
    background: #f7fbe9;
    color: var(--color-principal-oscuro);
}

.submenu-arrow {
    font-size: 1.15rem;
    line-height: 1;
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.language-switcher a,
.language-switcher span {
    color: #444444;
    font-size: 0.9rem;
    font-weight: 700;
}

.language-switcher a.activo {
    color: var(--color-principal-oscuro);
    text-decoration: underline;
}

.menu-toggle {
    display: none;
    width: 48px;
    height: 48px;
    border: 0;
    background: var(--color-principal);
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    height: 3px;
    margin: 5px 0;
    background: var(--color-blanco);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

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

.hero-banner {
    /* El banner es 2048×312px (ratio 6.56:1).
       Con background-size: 100% auto el alto se ajusta proporcionalmente
       al ancho del contenedor, mostrando siempre la imagen completa. */
    width: 100%;
    /* alto proporcional: 100vw / 6.56 ≈ 15.24vw, cap a 312px */
    height: clamp(80px, 15.24vw, 312px);
    background: #ffffff url('../IMAGES/banner-nanospain.png') center center / 100% auto no-repeat;
    border-bottom: 18px solid var(--color-principal);
}

/* =========================
   CONTENIDO PRINCIPAL
========================= */
.contenedor-principal {
    max-width: var(--ancho-maximo);
    margin: 0 auto;
    padding: 28px 54px 56px;
}

/* =========================
   HOME – SECCIÓN INTRO
========================= */

/* Wrapper externo: texto+contador a la izquierda, lateral a la derecha */
.cuerposuperior {
    display: grid;
    grid-template-columns: 1fr 250px;
    gap: 2rem;
    align-items: start;
    margin-bottom: 2rem;
}

/* Columna izquierda */
.intro-top {
    min-width: 0;
}

/* Título: tamaño fluido para caber en una línea */
.titulo-intro {
    font-family: 'Raleway', sans-serif;
    font-weight: 800;
    font-size: clamp(1rem, 1.7vw, 1.6rem);
    line-height: 1.2;
    color: var(--color-principal);
    margin: 0 0 0.6rem 0;
    white-space: nowrap;
}

/* Contador de partners */
.contador-partners {
    font-family: 'Raleway', sans-serif;
    font-size: 1.3rem;
    text-align: center;
    color: #444;
    margin: 0 0 1.5rem 0;
}

.contador-partners strong {
    color: var(--color-principal);
    font-weight: 800;
    font-size: 1.5rem;
}

/* Párrafo descripción */
.texto-descripcion {
    font-size: 20px;
    line-height: 1.65;
    color: #333;
    margin: 0;
    max-width: 100%;
    letter-spacing: 0.02em;
}

/* Columna lateral derecha: newsletter + bola */
.intro-top-lateral {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.btn-newsletter {
    display: block;
    line-height: 0;
}

.btn-newsletter img {
    display: block;
    width: 220px;
    max-width: 100%;
    height: auto;
    transition: opacity 0.2s ease;
}

.btn-newsletter:hover img {
    opacity: 0.85;
}

.bola-conf {
    display: block;
    line-height: 0;
}

.bola-conf img {
    display: block;
    width: 140px;
    max-width: 100%;
    height: auto;
    transition: transform 0.25s ease;
}

.bola-conf:hover img {
    transform: scale(1.05);
}

/* =========================
   HOME – BLOQUES INFERIORES
========================= */
.bloques-home {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 34px;
    align-items: start;
    text-align: center;
}

.bloque-home {
    padding: 8px 10px;
}

.icono-home {
    margin-bottom: 16px;
}

.icono-home img {
    width: 80px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.bloque-home h2 {
    margin: 0 0 10px;
    color: var(--color-principal);
    font-size: 1.08rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.bloque-home p {
    margin: 0 auto;
    max-width: 360px;
    font-size: 1.2rem;
    line-height: 1.45;
    letter-spacing: 0.03em;
}

/* =========================
   PIE
========================= */
.site-footer {
    background: #202020;
    color: var(--color-blanco);
}

.footer-inner {
    max-width: var(--ancho-maximo);
    margin: 0 auto;
    padding: 22px 24px;
    text-align: center;
    font-size: 0.95rem;
}

/* =========================
   RESPONSIVE – Tablet ≤ 1100px
========================= */
@media (max-width: 1100px) {
    .topbar {
        padding: 0 16px;
        min-height: 76px;
    }

    .menu {
        gap: 2px;
    }

    .menu > li > a,
    .submenu-toggle {
        font-size: 0.88rem;
        letter-spacing: 0.08em;
        padding: 12px 8px;
    }

    .contenedor-principal {
        padding: 28px 28px 50px;
    }

    /* El título puede partir en esta anchura */
    .titulo-intro {
        white-space: normal;
        font-size: clamp(1rem, 2.2vw, 1.5rem);
    }
}

/* =========================
   RESPONSIVE – Tablet ≤ 860px
========================= */
@media (max-width: 860px) {
    body.menu-open {
        overflow: hidden;
    }

    .topbar {
        display: grid;
        grid-template-columns: 1fr auto auto;
        align-items: center;
        gap: 14px;
        padding: 14px 16px;
        min-height: auto;
    }

    .menu-toggle {
        display: inline-block;
        order: 2;
    }

    .language-switcher {
        order: 3;
        justify-self: end;
    }

    .main-nav {
        display: none;
        order: 4;
        grid-column: 1 / -1;
        width: 100%;
        justify-content: flex-start;
    }

    .main-nav.is-open {
        display: block;
    }

    .menu {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--color-blanco);
        border-top: 1px solid #e8e8e8;
        padding-top: 8px;
    }

    .menu > li {
        width: 100%;
    }

    .menu > li > a,
    .submenu-toggle {
        width: 100%;
        text-align: left;
        padding: 14px 10px;
        border-bottom: 1px solid #efefef;
    }

    .has-submenu:hover .submenu {
        display: none;
    }

    .has-submenu.is-open .submenu {
        display: block;
        position: static;
        border-top: 0;
        box-shadow: none;
        min-width: auto;
        padding-left: 14px;
        background: #fafafa;
    }

    .submenu li a {
        padding: 12px 12px;
    }

    .submenu-toggle {
        justify-content: space-between;
    }

    .hero-banner {
        display: none;
    }

    .contenedor-principal {
        padding: 24px 18px 42px;
    }

    /* En tablet: lateral pasa debajo */
    .cuerposuperior {
        grid-template-columns: 1fr;
    }

    .intro-top-lateral {
        flex-direction: row;
        justify-content: center;
    }

    .titulo-intro {
        white-space: normal;
        font-size: 1.4rem;
        text-align: center;
    }

    .contador-partners {
        text-align: center;
    }

    .bloques-home {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .bloque-home p {
        max-width: 540px;
    }
}

/* =========================
   RESPONSIVE – Móvil ≤ 560px
========================= */
@media (max-width: 560px) {
    .logo-link {
        font-size: 1.2rem;
    }

    .language-switcher a,
    .language-switcher span {
        font-size: 0.82rem;
    }

    .titulo-intro {
        font-size: 1.1rem;
    }

    .contador-partners {
        font-size: 1.05rem;
    }

    .contador-partners strong {
        font-size: 1.2rem;
    }

    .intro-top-lateral {
        flex-direction: column;
    }

    .btn-newsletter img {
        width: 190px;
    }

    .bola-conf img {
        width: 120px;
    }

    .texto-descripcion {
        font-size: 17px;
    }

    .icono-home img {
        width: 65px;
    }

    .bloque-home h2 {
        font-size: 1rem;
    }

    .bloque-home p {
        font-size: 1.02rem;
    }
}