/* ==== Configuración Global y Variables ==== */
:root {
    --color-primary: #0052cc; /* Un azul corporativo moderno */
    --color-secondary: #FFD700; /* Amarillo para títulos (oro) */
    --color-dark: #1a1a1a;      /* Negro/Gris oscuro para texto y fondos */
    --color-light: #FFFFFF;     /* Blanco */
    --color-bg-light: #f9f9f9;  /* Un gris muy claro para secciones */
    
    --font-family: 'Poppins', sans-serif;
    --transition: all 0.3s ease-in-out;
    --container-width: 1100px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

.section-padding {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
}

.text-primary {
    color: var(--color-primary);
}

.text-secondary {
    color: var(--color-secondary);
    /* Sutil efecto para el amarillo */
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1); 
}

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

.bg-dark {
    background-color: var(--color-dark);
    color: var(--color-light);
}

/* ==== Botones ==== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border: none;
    border-radius: 50px; /* Bordes redondeados = moderno/amigable */
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-light);
}

.btn-primary:hover {
    background-color: #003d99; /* Azul más oscuro */
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 82, 204, 0.3);
}

.btn-large {
    padding: 15px 35px;
    font-size: 1.1rem;
}

/* ==== Header y Navegación ==== */
.main-header {
    background-color: var(--color-light);
    border-bottom: 1px solid #eee;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.main-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-dark);
}

.logo-dot {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    font-weight: 600;
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
}

.nav-links .btn {
    margin-left: 2rem;
}

.menu-toggle {
    display: none; /* Oculto en escritorio */
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-dark);
}

/* ==== Sección Hero ==== */
.hero-section {
    min-height: 90vh;
    display: flex;
    align-items: center;
    text-align: center;
    background-color: var(--color-light);
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    color: #555;
}

/* ==== Sección Servicios ==== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--color-light);
    border: 1px solid #eee;
    border-radius: 12px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
}

.service-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* ==== Sección Portafolio ==== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 2rem 1.5rem 1.5rem;
    color: var(--color-light);
    transform: translateY(30%);
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-info {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-info h4 {
    font-size: 1.3rem;
    margin-bottom: 0.25rem;
}

/* ==== Sección Clientes (Logo Cloud) ==== */
.logo-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

.logo-cloud img {
    max-height: 50px;
    width: auto;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: var(--transition);
}

.logo-cloud img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* ==== Sección Contacto ==== */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.contact-info .section-title {
    text-align: left;
}

.contact-info p {
    font-size: 1.1rem;
    opacity: 0.8;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #555;
    border-radius: 8px;
    background-color: #2a2a2a;
    color: var(--color-light);
    font-family: var(--font-family);
    font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Mensajes de estado del formulario */
#form-status {
    margin-top: 1rem;
    font-weight: 600;
}
#form-status.success {
    color: #28a745; /* Verde */
}
#form-status.error {
    color: #dc3545; /* Rojo */
}

/* ==== Footer ==== */
.main-footer {
    background-color: var(--color-dark);
    color: #aaa;
    padding: 3rem 0;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-light);
}

.footer-social a {
    color: #aaa;
    font-size: 1.5rem;
    margin-left: 1.5rem;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--color-primary);
}

/* ==== Efectos de Animación (JavaScript) ==== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}


/* ==== Diseño Responsivo ==== */

/* Tablets (md) */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    .contact-container {
        grid-template-columns: 1fr;
    }
    .contact-info .section-title {
        text-align: center;
    }
    .contact-info {
        text-align: center;
        margin-bottom: 2rem;
    }
}

/* Móviles (sm) */
@media (max-width: 768px) {
    .section-padding {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }

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

    .hero-content p {
        font-size: 1rem;
    }

    /* Navegación Móvil */
    .menu-toggle {
        display: block;
        z-index: 1001;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 70%;
        height: 100vh;
        background-color: var(--color-dark);
        color: var(--color-light);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(100%);
        transition: transform 0.3s ease-out;
    }

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

    .nav-links li {
        margin: 1.5rem 0;
    }

    .nav-links .btn {
        margin: 1.5rem 0 0 0;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }
}