@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100;300;400&display=swap');

:root {
    --bg-color: #0a0a0a;
    --text-color: #e0e0e0;
    --accent-color: #ffffff;
    --secondary-text: #888888;
    --border-color: #222222;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    line-height: 1.6;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

/* Navegación */
nav {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.logo a {
    font-size: 1.2rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 400;
}

.nav-links a {
    color: var(--secondary-text);
    text-decoration: none;
    font-size: 0.75rem;
    margin-left: 25px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
}

.nav-links a:hover { color: var(--accent-color); }

/* Headers y Secciones */
header { padding: 150px 0 100px 0; }
h1 { font-size: clamp(2.5rem, 8vw, 4rem); font-weight: 100; line-height: 1.1; margin-bottom: 40px; color: var(--accent-color); }
.bio { max-width: 800px; font-size: 1.2rem; margin-bottom: 20px; }
.highlight { color: var(--secondary-text); display: block; font-size: 1rem; letter-spacing: 1px; }

section { padding: 100px 0; border-top: 1px solid var(--border-color); }
.section-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 5px; color: var(--secondary-text); display: block; margin-bottom: 60px; }

/* Tarjetas de servicios (para el index) */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; }
.service-card { padding: 40px; border: 1px solid var(--border-color); text-decoration: none; color: inherit; transition: border 0.3s ease; display: block; }
.service-card:hover {
    border-color: var(--accent-color);
    text-align: center;
}
.service-card h3 {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 15px;
    color: var(--accent-color);
    text-align: left;
}
.service-card p {
    color: var(--secondary-text);
    font-size: 0.95rem;
    text-align: left;
}

/* Listas Técnicas */
.expertise-list { list-style: none; margin-top: 40px; }
.expertise-list li { margin-bottom: 20px; padding-left: 20px; border-left: 1px solid var(--secondary-text); color: var(--secondary-text); }

/* Footer */
footer { padding: 100px 0 50px 0; border-top: 1px solid var(--border-color); }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; }
.contact-item h4 { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px; color: var(--secondary-text); margin-bottom: 15px; }
.contact-item a { color: var(--text-color); text-decoration: none; font-size: 1rem; transition: opacity 0.3s; }
.contact-item a:hover { opacity: 0.5; }

.back-btn { display: inline-block; margin-top: 40px; color: var(--secondary-text); text-decoration: none; font-size: 0.8rem; border-bottom: 1px solid var(--border-color); transition: color 0.3s; }
.back-btn:hover { color: var(--accent-color); }

@media (max-width: 768px) { .nav-links { display: none; } } /* Simplificación para móvil */