/* =========================================
    VARIABLES DE COLOR (edítalas aquí)
    ========================================= */

:root {
    --color-primario: rgba(47, 79, 26, 1);
    /* Verde oscuro */
    --color-primario-transp: rgba(47, 79, 26, 0.82);
    /* Verde oscuro trasnparente*/
    --color-secundario: #FDE12D;
    /* Amarillo */
    --color-terciario: rgba(67, 108, 36, 1);
    /* verde medio */
    --color-fondo: #ffffff;
    /* Blanco general */
    --color-fondo-alt: #f8f9fa;
    /* Gris muy claro */
    --color-destacado: #fefae0;
    /* Amarillo pálido (sección resaltada) */
    --color-texto: #264653;
    --color-texto-claro: #ffffff;
    --header-altura: 70px;
}

html {
    scroll-behavior: smooth;
}

/* Reset básico */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--color-texto);
    background: var(--color-fondo);
    line-height: 1.6;
}

/* =========================================
    BARRA SUPERIOR FIJADA (Logo + Idiomas)
    ========================================= */
.top-bar {
    position: fixed;
    inset: 0 0 auto 0;
    height: var(--header-altura);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 2.5rem;
    z-index: 1000;
    /*background: rgba(27, 67, 50, 0.92); /* usa --color-primario con opacidad */
    background-color: var(--color-fondo);
    backdrop-filter: blur(6px);
    border-bottom: 3px solid var(--color-secundario);
}

.logo {
    height: 45px;
    width: auto;
    filter: drop-shadow(0 2px 2px rgba(0, 0, 0, .3));
}

.lang-menu {
    position: absolute;
    right: 2.5rem;
}

.lang-menu .lang-trigger {
    background: var(--color-primario);
    border: 1.5px solid var(--color-secundario);
    color: var(--color-secundario);
    padding: .35rem .9rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 4px;
    transition: all .25s ease;
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    display: flex;
    align-items: center;
    gap: .4rem;
}

.lang-menu .lang-trigger:hover,
.lang-menu.open .lang-trigger {
    background: var(--color-secundario);
    color: var(--color-primario);
}

.lang-menu .lang-trigger span {
    font-size: .7rem;
    transition: transform .25s ease;
}

.lang-menu.open .lang-trigger span.dropdown-arrow {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    list-style: none;
    margin: 0;
    padding: .5rem 0;
    background: rgba(27, 67, 50, 0.96);
    backdrop-filter: blur(8px);
    border: 1.5px solid var(--color-secundario);
    border-radius: 6px;
    min-width: 140px;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: all .25s ease;
    z-index: 1002;
}

.lang-menu.open .lang-dropdown {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.lang-dropdown li {
    padding: 0;
}

.lang-dropdown button, .lang-dropdown .button{
    width: 100%;
    background: transparent;
    border: none;
    color: var(--color-texto-claro);
    padding: .5rem 1rem;
    font-size: .9rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all .2s ease;
    text-transform: none;
    letter-spacing: normal;
}

.lang-dropdown button:hover,
.lang-dropdown button.active,
.lang-dropdown .button:hover {
    background: var(--color-secundario);
    color: var(--color-primario);
}

/* =========================================
    HAMBURGER + MENÚ MÓVIL
    ========================================= */
.hamburger {
    display: none;
    position: absolute;
    left: 2.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--color-primario);
    border-radius: 2px;
    transition: all .3s ease;
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav {
    position: fixed;
    top: var(--header-altura);
    left: 0;
    width: 260px;
    height: calc(100vh - var(--header-altura));
    background: rgba(27, 67, 50, 0.96);
    backdrop-filter: blur(8px);
    border-right: 3px solid var(--color-secundario);
    transform: translateX(-100%);
    transition: transform .3s ease;
    z-index: 999;
    display: flex;
    flex-direction: column;
    padding: 2rem 1.8rem;
    gap: 1.2rem;
}

.mobile-nav.open {
    transform: translateX(0);
}

.mobile-nav a {
    color: var(--color-texto-claro);
    text-decoration: none;
    font-size: 1.15rem;
    font-weight: 500;
    transition: color .2s, transform .2s;
    display: inline-flex;
    align-items: center;
    gap: .6rem;
}

.mobile-nav a::before {
    content: '›';
    color: var(--color-secundario);
    font-size: 1.4rem;
    line-height: 1;
    transition: transform .2s;
}

.mobile-nav a:hover {
    color: var(--color-secundario);
    transform: translateX(4px);
}

.mobile-nav a:hover::before {
    transform: translateX(4px);
}

/* Scroll: mostrar hamburger en desktop tras bajar */
.top-bar.scrolled .hamburger {
    display: flex;
}

.vertical-menu {
    transition: opacity .3s ease;
}

.top-bar.scrolled~.hero .vertical-menu {
    opacity: 0;
    pointer-events: none;
}

/* =========================================
    HERO (imagen a pantalla completa)
    ========================================= */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    background: url('/assets/images/ulex_ae_over_sea.avif') center/cover no-repeat;
    display: flex;
    align-items: center;
    /* sutil overlay para mejorar legibilidad */
    .container{
        color: var(--color-secundario);
        z-index: 2;
        text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.7);
        
        h2{
            font-size: 3rem;
            &::after{background-color: var(--color-primario);}
        }
        
        p{font-size: 2rem;}

        @media (max-width: 768px) {
            h2{font-size: 2rem;}
            
            p{font-size: 1rem;}
        }
    }
    
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(27, 67, 50, .55) 0%, rgba(27, 67, 50, .15) 60%, transparent 100%);
    pointer-events: none;
    z-index:1;
}

/* Menú vertical dentro del hero */
.vertical-menu {
    position: relative;
    z-index: 2;
    margin-left: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    background: var(--color-primario-transp);
    padding: 2.2rem 1.8rem;
    border-radius: 10px;
    border-left: 5px solid var(--color-secundario);
    backdrop-filter: blur(4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
}

.vertical-menu a {
    color: var(--color-texto-claro);
    text-decoration: none;
    font-size: 1.15rem;
    font-weight: 500;
    transition: color .2s, transform .2s;
    display: inline-flex;
    align-items: center;
    gap: .6rem;
}

.vertical-menu a::before {
    content: '›';
    color: var(--color-secundario);
    font-size: 1.4rem;
    line-height: 1;
    transition: transform .2s;
}

.vertical-menu a:hover {
    color: var(--color-secundario);
    transform: translateX(4px);
}

.vertical-menu a:hover::before {
    transform: translateX(4px);
}

/* Scroll-down indicador */
.scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: var(--color-texto-claro);
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    opacity: .9;
    animation: bounce 2s infinite;
    text-align: center;
}

.scroll-hint span {
    display: block;
    font-size: 1.5rem;
    margin-top: .3rem;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(10px);
    }

    60% {
        transform: translateX(-50%) translateY(5px);
    }
}

/* =========================================
    SECCIONES GENERALES
    ========================================= */
section {
    padding: 5rem 2rem;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

h2 {
    font-size: 2.2rem;
    margin-bottom: 1.2rem;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--color-secundario);
    margin-top: .5rem;
    border-radius: 2px;
}

p {
    font-size: 1.05rem;
}

/* --- Sección blanca --- */
.seccion-blanca {
    background: var(--color-fondo);
}

/* --- Sección verde oscuro --- */
.seccion-verde {
    background: var(--color-primario);
    color: var(--color-texto-claro);
}

.seccion-verde h2::after {
    background: var(--color-secundario);
}

.seccion-verde h2 {
    color: var(--color-secundario);
}

/* --- Sección destacada (amarillo pálido) --- */
.seccion-destacada {
    background: var(--color-destacado);
    border-top: 6px solid var(--color-secundario);
    border-bottom: 6px solid var(--color-secundario);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, 300px);
  gap: 20px;
  justify-content: center;
  margin: 2rem 0;
  .card{
    padding:2em;
    border:solid 1px var(--color-primario);
    border-radius: 15px;
    background-color: var(--color-primario);
    color: var(--color-texto-claro);
    
    img{
        width: 230px;
        height: 150px;
        object-fit: cover;
    }
  }
}

/* =========================================
    PATROCINIOS
    ========================================= */
.patrocinios {
    background: var(--color-fondo-alt);
    text-align: center;
}

.patrocinios-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    flex-wrap: wrap;
    margin-top: 2.5rem;
}

.logo-box {
    width: 160px;
    height: 90px;
    background: #e0e0e0;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #777;
    font-size: .85rem;
    font-weight: 600;
    border: 2px dashed #ccc;
    transition: transform .25s, border-color .25s;
}

.logo-box:hover {
    transform: translateY(-4px);
    border-color: var(--color-primario);
}

/* =========================================
    PIE DE PÁGINA
    ========================================= */
footer {
    background: var(--color-primario);
    color: var(--color-texto-claro);
    text-align: center;
    padding: 3.5rem 2rem 2.5rem;
    font-size: .95rem;
}

footer a {
    color: var(--color-secundario);
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    text-decoration: underline;
}

.footer-links {
    margin: 1rem 0 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* =========================================
    IMPACTOS GRID (sección Resultados / Impactos esperados)
    ========================================= */
.impactos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;

    .impacto-item {
        position: relative;
        background: rgba(255, 255, 255, 0.07);
        border: 1px solid var(--color-secundario);
        border-radius: 10px;
        padding: 3.8rem 1.6rem 1.8rem;
        transition: transform .25s ease, background .25s ease, box-shadow .25s ease;
    }

    .impacto-item:hover {
        transform: translateY(-4px);
        background: rgba(255, 255, 255, 0.13);
        box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
    }

    .impacto-item h3 {
        font-size: 1.1rem;
        margin-bottom: .6rem;
        color: var(--color-secundario);
    }

    .impacto-item p {
        font-size: .97rem;
        line-height: 1.55;
        color: var(--color-texto-claro);
    }

    /* Número grande decorativo */
    .num {
        position: absolute;
        top: -0.2rem;
        left: 1.4rem;
        font-size: 2.8rem;
        font-weight: 800;
        line-height: 1;
        color: var(--color-secundario);
        opacity: .25;
    }
}

/* =========================================
    SLIDER DE ENTIDADES (Swiper)
    ========================================= */
.slider-entidades {
    padding: 1rem 0 2rem;
}

.slider-entidades .swiper-slide {
    width: auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.slide-logo a {
    display: block;
    padding: 0.5rem;
    transition: transform 0.2s ease;
}

.slide-logo a:hover {
    transform: scale(1.05);
}

.slide-logo img {
    width: auto;
    height: 80px;
    display: block;
    max-width: 250px;
    object-fit: contain;
}

.slider-entidades .swiper-button-next,
.slider-entidades .swiper-button-prev {
    color: var(--accent);
    width: 36px;
    height: 36px;
}

.slider-entidades .swiper-pagination-bullet-active {
    background: var(--accent);
}


/* =========================================
    RESPONSIVE (móvil)
    ========================================= */

@media (max-width: 768px) {
    .top-bar {
        padding: 0 1rem;
        height: 60px;
    }

    .logo {
        height: 36px;
    }

    .lang-menu {
        right: 1rem;
    }

    .hamburger {
        display: flex;
        left: 1rem;
    }

    .vertical-menu {
        display: none;
    }

    .mobile-nav {
        top: 60px;
        width: 240px;
        height: calc(100vh - 60px);
    }

    section {
        padding: 3.5rem 1.2rem;
    }

    h2 {
        font-size: 1.7rem;
    }

    .slide-logo img {
        max-width: 200px;
    }
}