/* Reset y Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Importar Montserrat desde Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&display=swap');

:root {
    --gris-oscuro: #3D4F5C;
    --gris-medio: #6B7C8A;
    --naranja: #FF9800;
    --blanco: #F5F5F5;
    --blanco-puro: #FFFFFF;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--gris-medio);
    background-color: var(--blanco);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Sticky */
.header {
    background-color: var(--gris-oscuro);
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo img {
    height: 100px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
    align-items: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.nav-menu li {
    position: relative;
}

.nav-menu li:not(:last-child)::after {
    content: "│";
    color: var(--blanco);
    opacity: 0.3;
    margin: 0 20px;
    font-weight: 300;
}

.nav-menu a {
    color: var(--blanco);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    padding: 8px 0;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--naranja);
}

/* Menú hamburguesa (móvil) */
.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--blanco);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(61, 79, 92, 0.7), rgba(61, 79, 92, 0.7)),
                url('../images/hero/hero-bg.jpg') center/cover;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--blanco-puro);
    padding: 100px 20px;
}

.hero-content {
    max-width: 900px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    font-weight: 700;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 25px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    font-weight: 400;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    line-height: 1.8;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Botones */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 15px 35px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--naranja);
    color: var(--blanco-puro);
}

.btn-primary:hover {
    background-color: #e68900;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 152, 0, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--naranja);
    border: 2px solid var(--naranja);
    margin-top: 30px;
}

.btn-secondary:hover {
    background-color: var(--naranja);
    color: var(--blanco-puro);
}

/* Proyectos Destacados */
.featured-projects {
    padding: 100px 20px;
    text-align: center;
    background-color: var(--blanco);
}

.featured-projects h2 {
    font-size: 2.8rem;
    color: var(--gris-oscuro);
    margin-bottom: 20px;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gris-medio);
    max-width: 700px;
    margin: 0 auto 60px;
    line-height: 1.8;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.project-card {
    background-color: var(--blanco-puro);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(255, 152, 0, 0.2);
}

.project-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.project-info {
    padding: 30px 20px;
}

.project-info h3 {
    color: var(--gris-oscuro);
    font-size: 1.5rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.project-info p {
    color: var(--gris-medio);
    line-height: 1.6;
}

/* Sobre REBEC (Home) */
.about-home {
    padding: 100px 20px;
    background-color: var(--blanco-puro);
}

.about-home-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.about-home-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.about-home-text h2 {
    font-size: 2.5rem;
    color: var(--gris-oscuro);
    margin-bottom: 25px;
    font-weight: 700;
}

.about-home-text p {
    font-size: 1.1rem;
    line-height: 1.9;
    margin-bottom: 20px;
    color: var(--gris-medio);
    text-align: justify;
}

.about-home-text .btn-primary {
    margin-top: 20px;
}

/* Proceso de Trabajo */
.process-section {
    padding: 100px 20px;
    background-color: var(--blanco);
    text-align: center;
}

.process-section h2 {
    font-size: 2.8rem;
    color: var(--gris-oscuro);
    margin-bottom: 20px;
    font-weight: 700;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    margin-top: 60px;
}

.process-step {
    padding: 30px;
    background-color: var(--blanco-puro);
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(255, 152, 0, 0.2);
}

.step-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--naranja);
    margin-bottom: 15px;
}

.process-step h3 {
    font-size: 1.3rem;
    color: var(--gris-oscuro);
    margin-bottom: 15px;
    font-weight: 600;
}

.process-step p {
    color: var(--gris-medio);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* Call to Action */
.cta-section {
    padding: 80px 20px;
    background: linear-gradient(135deg, var(--gris-oscuro), #2a3a47);
    text-align: center;
    color: var(--blanco-puro);
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 35px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background-color: var(--gris-oscuro);
    color: var(--blanco);
    text-align: center;
    padding: 30px 20px;
    margin-top: 80px;
}

/* Page Header (para todas las páginas internas) */
.page-header {
    background-color: var(--gris-oscuro);
    color: var(--blanco-puro);
    padding: 80px 20px 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--blanco);
}

/* Estilos Nosotros */
.nosotros-content {
    padding: 80px 20px;
}

.about-intro {
    max-width: 900px;
    margin: 0 auto 80px;
    text-align: center;
}

.about-intro h2 {
    color: var(--gris-oscuro);
    font-size: 2.5rem;
    margin-bottom: 30px;
    font-weight: 700;
}

.about-intro p {
    font-size: 1.15rem;
    margin-bottom: 20px;
    line-height: 1.9;
    color: var(--gris-medio);
    text-align: justify;
}

/* Estadísticas */
.stats-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 100px;
    padding: 60px 40px;
    background: linear-gradient(135deg, var(--gris-oscuro), #2a3a47);
    border-radius: 15px;
}

.stat-item {
    text-align: center;
    color: var(--blanco-puro);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--naranja);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 500;
}

/* Misión y Visión */
.mision-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 100px;
}

.mv-card {
    background-color: var(--blanco-puro);
    padding: 50px 40px;
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
}

.mv-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 35px rgba(255, 152, 0, 0.2);
}

.mv-icon {
    font-size: 4rem;
    margin-bottom: 25px;
}

.mv-card h3 {
    color: var(--gris-oscuro);
    font-size: 2rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.mv-card p {
    color: var(--gris-medio);
    line-height: 1.9;
    font-size: 1.05rem;
    text-align: justify;
}

/* Áreas de Especialización */
.especializacion-section {
    max-width: 1200px;
    margin: 0 auto 100px;
    text-align: center;
}

.especializacion-section h2 {
    color: var(--gris-oscuro);
    font-size: 2.5rem;
    margin-bottom: 60px;
    font-weight: 700;
}

.especializacion-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.espec-item {
    padding: 35px 25px;
    background-color: var(--blanco-puro);
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.espec-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(255, 152, 0, 0.15);
}

.espec-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.espec-item h4 {
    color: var(--gris-oscuro);
    font-size: 1.3rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.espec-item p {
    color: var(--gris-medio);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* Valores actualizados */
.valores {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto 100px;
}

.valores h2 {
    color: var(--gris-oscuro);
    font-size: 2.5rem;
    margin-bottom: 60px;
    font-weight: 700;
}

.valores-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
}

.valor-item {
    padding: 35px 30px;
    background-color: var(--blanco-puro);
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.valor-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(255, 152, 0, 0.2);
}

.valor-item h3 {
    color: var(--naranja);
    margin-bottom: 15px;
    font-size: 1.4rem;
    font-weight: 600;
}

.valor-item p {
    color: var(--gris-medio);
    line-height: 1.8;
}

/* Certificaciones */
.certificaciones-section {
    max-width: 900px;
    margin: 0 auto 80px;
    text-align: center;
    padding: 50px 40px;
    background-color: var(--blanco-puro);
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
}

.certificaciones-section h2 {
    color: var(--gris-oscuro);
    font-size: 2.2rem;
    margin-bottom: 25px;
    font-weight: 700;
}

.certificaciones-section p {
    color: var(--gris-medio);
    line-height: 1.9;
    font-size: 1.1rem;
    text-align: justify;
}

/* CTA Nosotros */
.nosotros-cta {
    text-align: center;
    padding: 80px 40px;
    background: linear-gradient(135deg, var(--gris-oscuro), #2a3a47);
    border-radius: 15px;
    color: var(--blanco-puro);
    max-width: 1200px;
    margin: 0 auto;
}

.nosotros-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.nosotros-cta p {
    font-size: 1.3rem;
    margin-bottom: 35px;
}

.about-text-full {
    max-width: 900px;
    margin: 0 auto 80px;
    text-align: left;
}

.about-text-full h2 {
    color: var(--gris-oscuro);
    font-size: 2rem;
    margin-bottom: 20px;
}

.about-text-full h3 {
    color: var(--naranja);
    font-size: 1.5rem;
    margin-top: 30px;
    margin-bottom: 15px;
}

.about-text-full p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-text h2 {
    color: var(--gris-oscuro);
    font-size: 2rem;
    margin-bottom: 20px;
}

.about-text h3 {
    color: var(--naranja);
    font-size: 1.5rem;
    margin-top: 30px;
    margin-bottom: 15px;
}

.about-text p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* Estilos Servicios */
.servicios-section {
    padding: 80px 20px;
}

.servicios-grid {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.servicio-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    background-color: var(--blanco-puro);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
}

.servicio-card:nth-child(even) {
    direction: rtl;
}

.servicio-card:nth-child(even) .servicio-content {
    direction: ltr;
}

.servicio-image img {
    width: 100%;
    border-radius: 8px;
}

.servicio-content h3 {
    color: var(--gris-oscuro);
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.servicio-content p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.servicio-content ul {
    list-style: none;
    padding: 0;
}

.servicio-content ul li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.servicio-content ul li::before {
    content: "✓";
    color: var(--naranja);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.servicios-cta {
    text-align: center;
    margin-top: 80px;
    padding: 60px 20px;
    background-color: var(--blanco-puro);
    border-radius: 10px;
}

.servicios-cta h2 {
    color: var(--gris-oscuro);
    margin-bottom: 15px;
}

.servicios-cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* Estilos Galería */
.galeria-section {
    padding: 80px 20px;
}

.galeria-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.proyecto-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
    aspect-ratio: 4/3;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.proyecto-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.proyecto-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.proyecto-item:hover img {
    transform: scale(1.1);
}

.proyecto-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.7) 70%, transparent 100%);
    padding: 30px 25px 25px;
    color: var(--blanco-puro);
    transform: translateY(0);
    transition: all 0.3s;
}

.proyecto-item:hover .proyecto-overlay {
    background: linear-gradient(to top, rgba(255, 152, 0, 0.95) 0%, rgba(255, 152, 0, 0.8) 70%, rgba(0, 0, 0, 0.3) 100%);
}

.proyecto-overlay h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    font-weight: 600;
    line-height: 1.3;
}

.proyecto-overlay p {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 12px;
    opacity: 0.95;
}

.ver-proyecto {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Lightbox mejorado */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.lightbox-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 90%;
    max-height: 90%;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
}

.lightbox-info {
    margin-top: 25px;
    text-align: center;
    color: var(--blanco-puro);
}

.lightbox-info h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.lightbox-info p {
    font-size: 1.1rem;
    color: var(--naranja);
    font-weight: 500;
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 50px;
    color: var(--blanco-puro);
    font-size: 50px;
    cursor: pointer;
    transition: color 0.3s;
    z-index: 2001;
}

.lightbox-close:hover {
    color: var(--naranja);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--blanco-puro);
    font-size: 40px;
    cursor: pointer;
    padding: 20px;
    user-select: none;
    transition: color 0.3s;
    z-index: 2001;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    color: var(--naranja);
    background-color: rgba(0, 0, 0, 0.8);
}

.lightbox-prev {
    left: 30px;
}

.lightbox-next {
    right: 30px;
}

/* Estilos Contacto */
.contacto-section {
    padding: 80px 20px;
}

.contacto-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contacto-info h2,
.contacto-form h2 {
    color: var(--gris-oscuro);
    margin-bottom: 30px;
}

.info-item {
    margin-bottom: 30px;
}

.info-item h3 {
    color: var(--naranja);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.info-item p {
    line-height: 1.8;
}

.info-item a {
    color: var(--gris-medio);
    text-decoration: none;
    transition: color 0.3s;
}

.info-item a:hover {
    color: var(--naranja);
}

/* Formulario */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--gris-oscuro);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--naranja);
}

.form-group textarea {
    resize: vertical;
}

.contacto-form button {
    width: 100%;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu li:not(:last-child)::after {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--gris-oscuro);
        flex-direction: column;
        gap: 0;
        padding: 20px;
        transform: translateX(-100%);
        transition: transform 0.3s;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu li {
        padding: 15px 0;
        border-bottom: 1px solid var(--gris-medio);
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .about-home-grid,
    .contacto-grid {
        grid-template-columns: 1fr;
    }

    .process-grid {
        grid-template-columns: 1fr;
    }

    .stats-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        padding: 40px 20px;
    }

    .mision-vision {
        grid-template-columns: 1fr;
    }

    .especializacion-grid {
        grid-template-columns: 1fr;
    }

    .valores-grid {
        grid-template-columns: 1fr;
    }

    .servicio-card {
        grid-template-columns: 1fr;
    }

    .servicio-card:nth-child(even) {
        direction: ltr;
    }

    .galeria-grid {
        grid-template-columns: 1fr;
    }

    .proyecto-overlay h3 {
        font-size: 1.2rem;
    }

    .proyecto-overlay p {
        font-size: 0.9rem;
    }

    .lightbox-prev {
        left: 10px;
        width: 50px;
        height: 50px;
        font-size: 30px;
    }

    .lightbox-next {
        right: 10px;
        width: 50px;
        height: 50px;
        font-size: 30px;
    }

    .lightbox-close {
        right: 20px;
        top: 20px;
        font-size: 40px;
    }

    .lightbox-info h3 {
        font-size: 1.3rem;
    }

    .lightbox-info p {
        font-size: 0.95rem;
    }
}