/* ========================================= */
/* BASE Y VARIABLES */
/* ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* PALETA DE COLORES SICODELICATS (Azul y Amarillo) */
:root {
    --color-principal: #007bff; /* Azul (Confianza, Estabilidad) */
    --color-acento: #ffc107;   /* Amarillo (Energía, Acción) */
    --color-texto: #333;
    --color-fondo: #f4f4f4; /* Gris claro suave */
    --color-secundario: #0056b3; /* Azul Oscuro para Hover */
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--color-texto);
    line-height: 1.6;
    background-color: white;
    overflow-x: hidden; /* Evita el scroll horizontal en diseños responsivos */
}

/* RESPONSIVIDAD GENERAL */
section {
    padding: 80px 5%; /* Padding vertical generoso y 5% de margin a los lados */
    max-width: 1200px; /* Ancho máximo para pantallas grandes */
    margin: 0 auto;
}


/* ========================================= */
/* HEADER */
/* ========================================= */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky; /* Sticky Header para innovación */
    top: 0;
    z-index: 1000;
}

.logo {
    font-weight: 800;
    font-size: 1.5em;
    color: var(--color-principal); /* Azul */
}

.cta-header-btn {
    text-decoration: none;
    color: var(--color-principal);
    font-weight: 600;
    padding: 8px 15px;
    border: 2px solid var(--color-principal);
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}

.cta-header-btn:hover {
    background-color: var(--color-principal);
    color: white;
}


/* ========================================= */
/* BOTONES CTA (Call to Action) */
/* ========================================= */
.cta-principal-btn {
    display: inline-block;
    background-color: var(--color-acento); /* Botones en AMARILLO para resaltar */
    color: var(--color-texto); /* Texto en color oscuro para el contraste */
    padding: 15px 30px;
    border-radius: 50px; 
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    box-shadow: 0 5px 15px rgba(255, 193, 7, 0.4); /* Sombra para el botón amarillo */
}

.cta-principal-btn:hover {
    background-color: #e0a800; /* Tono de Amarillo más oscuro */
    transform: translateY(-3px); /* Efecto "Lift" al pasar el mouse */
    box-shadow: 0 8px 20px rgba(255, 193, 7, 0.6);
}

.cta-principal-btn i {
    margin-right: 8px;
}

/* ========================================= */
/* HERO SECTION */
/* ========================================= */
#hero {
    min-height: 70vh; 
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(135deg, white 60%, var(--color-fondo) 100%); 
}

#hero h1 {
    font-size: 3em; 
    margin-bottom: 20px;
    line-height: 1.1;
    max-width: 800px;
}

#hero h1 strong {
    color: var(--color-principal);
}

.hero-subtitulo {
    font-size: 1.25em;
    max-width: 700px; 
    margin-bottom: 30px;
    font-weight: 400;
    color: #555; 
}


/* ========================================= */
/* CARACTERÍSTICAS CLAVE (GRID) */
/* ========================================= */
#caracteristicas h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 60px;
    font-weight: 800;
}

#caracteristicas h2 strong {
    color: var(--color-principal); 
}

.grid-caracteristicas {
    display: grid;
    gap: 30px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    margin-top: 40px;
}

.tarjeta {
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 5px solid var(--color-acento); /* Toque de color en el borde */
}

.tarjeta:hover {
    transform: translateY(-5px); /* Efecto de elevación */
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.icono-tarjeta {
    font-size: 2.5em;
    color: var(--color-principal); /* Iconos en AZUL */
    margin-bottom: 15px;
}

.tarjeta h3 {
    color: var(--color-principal);
    margin-bottom: 15px;
    font-size: 1.4em;
    font-weight: 600;
}


/* ========================================= */
/* SECCIÓN DE IMAGEN DESTACADA (BREAK) */
/* ========================================= */
#imagen-destacada {
    background-color: var(--color-principal); /* Fondo AZUL */
    color: white;
    padding: 100px 5%;
    text-align: center;
    /* Esto podría ser una imagen real para mejor impacto */
    /* background-image: url('tu-imagen-aqui.jpg'); */
    background-size: cover;
    background-position: center;
}

#imagen-destacada h2 {
    font-size: 2.8em;
    margin-bottom: 15px;
    font-weight: 800;
}


/* ========================================= */
/* PORTAFOLIO / PROYECTOS DESTACADOS */
/* ========================================= */
#portafolio {
    background-color: var(--color-fondo); /* Fondo gris claro */
    text-align: center;
}

#portafolio h2 {
    font-size: 2.5em;
    margin-bottom: 15px;
    font-weight: 800;
}

.portafolio-subtitulo {
    font-size: 1.1em;
    margin-bottom: 50px;
    color: #666;
}

.grid-portafolio {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Dos columnas para desktop */
    gap: 40px;
}

.proyecto-card {
    display: block;
    text-align: left;
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none; /* Quitar el subrayado de enlace */
    color: var(--color-texto);
    position: relative;
    border-top: 5px solid var(--color-principal); /* Destacar con el color principal */
}

.proyecto-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.tag-proyecto {
    display: inline-block;
    background-color: var(--color-acento); /* Amarillo */
    color: var(--color-texto);
    padding: 5px 15px;
    border-radius: 5px;
    font-size: 0.85em;
    font-weight: 600;
    margin-bottom: 15px;
}

.proyecto-card h3 {
    font-size: 1.6em;
    color: var(--color-principal); /* Azul */
    margin-bottom: 10px;
}

.proyecto-card p {
    font-size: 1em;
    margin-bottom: 20px;
    color: #555;
}

.ver-proyecto {
    display: inline-block;
    color: var(--color-principal);
    font-weight: 600;
    transition: margin-left 0.3s ease;
}

.proyecto-card:hover .ver-proyecto {
    margin-left: 5px; /* Movimiento sutil al hacer hover */
}


/* ========================================= */
/* SECCIÓN DE CONTACTO / CTA FINAL */
/* ========================================= */
#contacto {
    text-align: center;
    padding-bottom: 100px;
}

#contacto h2 {
    font-size: 2.2em;
    margin-bottom: 15px;
}

#contacto p {
    font-size: 1.1em;
    margin-bottom: 30px;
}

/* ========================================= */
/* FOOTER */
/* ========================================= */
footer {
    text-align: center;
    padding: 20px 0;
    background-color: #333;
    color: #ccc;
    font-size: 0.9em;
}


/* ========================================= */
/* ANIMACIONES (IMPLEMENTACIÓN DE JAVASCRIPT) */
/* ========================================= */
/* Estilos iniciales para la animación de 'fade-in' y 'slide-up' */
.seccion-animada {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* Clase añadida por JS para activar la animación */
.seccion-animada.is-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}


/* ========================================= */
/* BOTÓN FLOTANTE DE WHATSAPP */
/* ========================================= */
#whatsapp-flotante {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background-color: #25d366; /* Color oficial de WhatsApp */
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
    font-size: 2em;
    line-height: 60px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1001;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#whatsapp-flotante:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
}


/* ========================================= */
/* MEDIA QUERIES (RESPONSIVIDAD) */
/* ========================================= */
@media (max-width: 992px) {
    #hero h1 {
        font-size: 2.5em;
    }
}

@media (max-width: 768px) {
    section {
        padding: 40px 5%; /* Reducir padding en móviles */
    }
    #hero {
        min-height: 50vh;
    }
    #hero h1 {
        font-size: 2em; 
    }
    .hero-subtitulo {
        font-size: 1em; 
    }
    .cta-principal-btn {
        padding: 12px 25px;
        font-size: 1em;
    }
    #caracteristicas h2, #portafolio h2 {
        font-size: 2em;
    }
    .tarjeta {
        padding: 20px;
    }
    .logo {
        font-size: 1.2em;
    }
    /* El portafolio se convierte a una sola columna */
    .grid-portafolio {
        grid-template-columns: 1fr; 
    }
    .proyecto-card h3 {
        font-size: 1.4em;
    }
}