/* --- RESET BÁSICO Y VARIABLES --- */
:root {
    --primary-color: #0a2540; /* Azul oscuro corporativo */
    --secondary-color: #00d4ff; /* Azul cian vibrante para acentos */
    --background-color: #f8f9fa; /* Gris muy claro para fondos */
    --text-color: #333; /* Gris oscuro para texto */
    --light-text-color: #f8f9fa;
    --card-bg-color: #ffffff;
    --font-family: 'Poppins', sans-serif;
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- ENCABEZADO Y NAVEGACIÓN --- */
.header {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light-text-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--light-text-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--secondary-color);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--light-text-color);
    transition: all 0.3s ease-in-out;
}


/* --- SECCIONES GENÉRICAS --- */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--primary-color);
}

/* --- SECCIÓN HERO --- */
.hero-section {
    background: linear-gradient(rgba(10, 37, 64, 0.85), rgba(10, 37, 64, 0.85)), url('https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png') no-repeat center center/cover;
    /* Reemplaza la URL de la imagen de fondo por una relevante */
    color: var(--light-text-color);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--header-height);
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 30px;
}

.cta-button {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 212, 255, 0.3);
}

/* --- SECCIÓN DE SERVICIOS --- */
.services-section {
    background-color: var(--background-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--card-bg-color);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.service-icon {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* --- SECCIÓN SOBRE MÍ --- */
.about-section {
    background-color: var(--card-bg-color);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-photo {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 0 25px rgba(0, 212, 255, 0.4);
}

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

.skills {
    margin-top: 20px;
}

.skills span {
    display: inline-block;
    background-color: #e9ecef;
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 20px;
    margin: 5px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* --- SECCIÓN DE CONTACTO --- */
.contact-section {
    text-align: center;
    background-color: var(--primary-color);
    color: var(--light-text-color);
}
.contact-section .section-title {
    color: var(--light-text-color);
}
.contact-subtitle {
    max-width: 600px;
    margin: 0 auto 30px;
}

/* --- FOOTER --- */
.footer {
    background-color: #061a2e;
    color: #aab8c2;
    padding: 20px 0;
    text-align: center;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links a {
    color: #aab8c2;
    text-decoration: none;
    font-size: 1.5rem;
    margin-left: 15px;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--secondary-color);
}


/* --- RESPONSIVE DESIGN --- */
@media(max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: var(--header-height);
        flex-direction: column;
        background-color: var(--primary-color);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-item {
        padding: 1.5rem 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .about-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer .container {
        flex-direction: column;
        gap: 15px;
    }
}