/* Reset general y tipografía */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: #f8f9fa;
    color: #333333;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Barra de Navegación */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 5%;
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
}

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

.nav-links a {
    text-decoration: none;
    color: #555555;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #3498db;
}

/* Sección Inicio (Hero) */
.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #1a252f 0%, #2c3e50 100%);
    color: #ffffff;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero h2 {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    color: #3498db;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    color: #bdc3c7;
}

/* Botones */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #3498db;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

/* Sección Sobre Mí con Imagen */
.about {
    padding: 6rem 0;
    background-color: #ffffff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    display: block;
    margin: 0 auto;
}

.about-text h2 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.about-text p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: #555555;
}

/* Sección Habilidades */
.skills {
    padding: 6rem 0;
    background-color: #f8f9fa;
    text-align: center;
}

.skills h2 {
    font-size: 2.2rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

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

.skill-card {
    background-color: #ffffff;
    padding: 2.5rem 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    border: 1px solid #eeeeee;
    transition: transform 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
}

.skill-card h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* Footer / Contacto */
footer {
    background-color: #1a252f;
    color: #ffffff;
    text-align: center;
    padding: 5rem 0 2rem;
}

.domain {
    font-weight: 700;
    color: #3498db;
    font-size: 1.2rem;
    margin: 15px 0;
}

.btn-secondary {
    background-color: transparent;
    color: #3498db;
    border: 2px solid #3498db;
    margin-bottom: 3rem;
}

.btn-secondary:hover {
    background-color: #3498db;
    color: #ffffff;
}

.copyright {
    font-size: 0.85rem;
    color: #7f8c8d;
    border-top: 1px solid #2c3e50;
    padding-top: 2rem;
}

/* Diseño Responsivo */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .navbar {
        justify-content: center;
    }
}