/* --- Variables y Configuración Global --- */
:root {
    --primary-blue: #0a192f;
    --light-cyan: #64ffda;
    --dark-slate: #8892b0;
    --light-slate: #ccd6f6;
    --white: #e6f1ff;
    --font-family: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--primary-blue);
    color: var(--light-slate);
    line-height: 1.6;
}

/* --- Estilos del Header y Navegación (MODIFICADO) --- */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 2rem;
    z-index: 1000;
    background-color: rgba(10, 25, 47, 0.8);
    backdrop-filter: blur(10px);
    transition: background-color 0.3s ease;
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.logo-nav-link {
    text-decoration: none;
}

.logo-nav {
    height: 30px;
    width: auto;
    display: block; /* Evita espacios extra debajo del logo */
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    position: relative;
    transition: color 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--light-cyan);
    transition: width 0.3s ease;
}

.nav-menu a:hover {
    color: var(--light-cyan);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* --- Estilos de la Sección Hero --- */
#hero {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

#thermo-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: linear-gradient(135deg, #0a192f 0%, #112240 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
    max-width: 900px;
}

.hero-logo {
    max-width: 300px;
    width: 100%;
    height: auto;
    margin-bottom: 2rem;
    filter: drop-shadow(0 0 20px rgba(100, 255, 218, 0.3));
}

#hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    color: var(--white);
    margin-bottom: 1rem;
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: 2px;
}

#hero p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--dark-slate);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-blue);
    background-color: var(--light-cyan);
    border: 2px solid var(--light-cyan);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease-in-out;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button:hover {
    background-color: transparent;
    color: var(--light-cyan);
    box-shadow: 0 0 15px rgba(100, 255, 218, 0.5);
    transform: translateY(-3px);
}

/* --- Estilos de las Secciones Generales --- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--light-cyan);
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--dark-slate);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}
















/* --- Estilos de "Quiénes Somos" --- */
#quienes-somos {
    padding: 100px 20px;
    position: relative;
    z-index: 5;
    background: var(--primary-blue);
	
    overflow: hidden;
}

.about-grid {
    /*display: grid;*/
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--light-slate);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background-color: rgba(17, 34, 64, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    /*transition: transform 0.3s ease, box-shadow 0.3s ease;*/
	transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    /*box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);*/
    /*border-color: rgba(100, 255, 218, 0.5);*/
	box-shadow: 0 10px 30px rgba(100, 255, 218, 0.2);
	border-color: var(--light-cyan);
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--dark-slate);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: 2fr 1fr;
        gap: 4rem;
    }
}





/* --- Estilos de la Sección Contacto --- */
#contacto {
    padding: 100px 20px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, #020c1b 100%);
    text-align: center;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-item {
    background-color: rgba(17, 34, 64, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 8px;
    padding: 2.5rem 2rem;
    text-decoration: none;
    color: var(--light-slate);
    transition: all 0.3s ease;
    display: block;
}

.contact-item:hover {
    transform: translateY(-8px);
    border-color: var(--light-cyan);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.2);
    color: var(--white);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--light-cyan);
}

.contact-item h3 {
    font-size: 1.3rem;
    color: var(--white);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.contact-item p {
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.contact-item:hover p {
    color: var(--light-cyan);
}








/* --- Estilos de "Contacto" (LIMPIADO Y CONSOLIDADO) --- */
#contacto {
    padding: 100px 20px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, #020c1b 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info h3 {
    color: var(--light-cyan);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--dark-slate);
    margin-bottom: 2rem;
}

.contact-item {
    margin-bottom: 1.5rem;
    color: var(--light-slate);
}

.contact-item strong {
    display: block;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.contact-item a {
    color: var(--light-cyan);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--white);
    text-decoration: underline;
}

.form-box {
    background-color: rgba(17, 34, 64, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 8px;
    padding: 2.5rem;
    text-align: center;
}

.form-box h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.form-box p {
    color: var(--dark-slate);
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
}








/* --- ESTILOS DE "CONTACTO" (NUEVO DISEÑO) --- */
#contacto {
    padding: 100px 20px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, #020c1b 100%);
}

.contact-items-grid {
    display: grid;
    grid-template-columns: 1fr; /* En móvil, una columna */
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background-color: rgba(17, 34, 64, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 8px;
    padding: 2.5rem;
    text-align: center;
    text-decoration: none; /* Quita el subrayado del enlace */
    color: var(--light-slate); /* Color de texto por defecto */
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: var(--light-cyan);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.2);
    color: var(--white); /* El texto general se vuelve blanco al hover */
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--light-cyan);
    transition: transform 0.3s ease;
}

.contact-card:hover .contact-icon {
    transform: scale(1.1); /* El icono crece ligeramente al hover */
}

.contact-card h3 {
    font-size: 1.3rem;
    color: var(--white); /* El título siempre es blanco */
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.contact-card p {
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.contact-card:hover p {
    color: var(--light-cyan); /* El email/teléfono se resalta en cian al hover */
}

/* En escritorio, las tarjetas se ponen una al lado de la otra */
@media (min-width: 768px) {
    .contact-items-grid {
        grid-template-columns: 1fr 1fr;
    }
}









/* --- ESTILOS DE "CONTACTO" (DISEÑO REFINADO) --- */
#contacto {
    padding: 100px 20px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, #020c1b 100%);
}

.contact-items-grid {
    display: grid;
    grid-template-columns: 1fr; /* En móvil, una columna */
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background-color: rgba(17, 34, 64, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 8px;
    padding: 2.5rem;
    text-align: center;
    color: var(--light-slate); /* Color de texto por defecto */
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* El hover ahora solo afecta a la tarjeta, no al color del texto general */
.contact-card:hover {
    transform: translateY(-8px);
    border-color: var(--light-cyan);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.2);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--light-cyan);
    transition: transform 0.3s ease;
}

.contact-card:hover .contact-icon {
    transform: scale(1.1);
}

.contact-card h3 {
    font-size: 1.3rem;
    color: var(--white);
    margin-bottom: 1rem; /* Un poco más de espacio para los párrafos */
    font-weight: 700;
}

/* Estilos para los enlaces DENTRO de las tarjetas */
.contact-card p a {
    font-size: 1.1rem;
    color: var(--light-slate); /* Color del enlace por defecto */
    text-decoration: none; /* Sin subrayado */
    transition: color 0.3s ease;
    display: inline-block; /* Para que el hover sea más preciso */
}

/* El hover ahora se aplica solo al enlace */
.contact-card p a:hover {
    color: var(--light-cyan);
    transform: scale(1.05); /* Un sutil efecto de acercamiento */
}

/* En escritorio, las tarjetas se ponen una al lado de la otra */
@media (min-width: 768px) {
    .contact-items-grid {
        grid-template-columns: 1fr 1fr;
    }
}








/* --- NUEVO: Estilos del Botón de Volver Arriba --- */
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--light-cyan);
    color: var(--primary-blue);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    z-index: 999;
}

#back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover {
    background-color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

#back-to-top svg {
    width: 24px;
    height: 24px;
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}


/* --- NUEVO: Estilos para las Animaciones de Scroll --- */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.section-title { transform: translateY(-30px); }
.animate-on-scroll.section-subtitle { transform: translateY(30px); transition-delay: 0.2s; }
.animate-on-scroll.about-text { transform: translateX(-50px); }
.animate-on-scroll.about-stats .stat-card { transform: translateY(50px) scale(0.9); }
.animate-on-scroll.about-stats .stat-card:nth-child(1) { transition-delay: 0.1s; }
.animate-on-scroll.about-stats .stat-card:nth-child(2) { transition-delay: 0.2s; }
.animate-on-scroll.about-stats .stat-card:nth-child(3) { transition-delay: 0.3s; }

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateX(0) translateY(0) scale(1);
}

/* --- Estilos del Footer --- */
footer {
    text-align: center;
    padding: 2rem;
    background-color: #020c1b;
    color: var(--dark-slate);
}



/* --- Estilos del Footer (Mejorado y Responsive) --- */
footer {
    background-color: #020c1b;
    color: var(--dark-slate);
    padding: 2rem 1rem; /* Más padding horizontal en móviles */
    font-size: 0.9rem; /* Texto un poco más pequeño */
}

.footer-content {
    display: flex;
    flex-direction: column; /* Por defecto (móvil): en columna */
    align-items: center;
    gap: 0.5rem; /* Espacio entre las dos líneas */
    text-align: center;
}

/* Estilos para el enlace del desarrollador */
.developer-credit a {
    color: var(--light-slate);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.developer-credit a:hover {
    color: var(--light-cyan);
}

/* Media Query para pantallas más grandes (ordenador) */
@media (min-width: 768px) {
    .footer-content {
        flex-direction: row; /* En ordenador: en una sola fila */
        justify-content: center;
        gap: 1rem; /* Espacio entre los dos párrafos */
    }

    /* Añadimos un separador visual entre el copyright y el crédito */
    .copyright::after {
        content: '|';
        margin: 0 1rem;
        color: var(--navy); /* Un color sutil para el separador */
    }
}