:root {
    --primary-color: #0b2545;
    --secondary-color: #134074;
    --accent-color: #8da9c4;
    --text-dark: #1d2d44;
    --text-light: #f4f6f9;
    --white: #ffffff;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-stack); color: var(--text-dark); background-color: var(--white); line-height: 1.7; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* HEADER */
.main-header { background-color: var(--primary-color); padding: 20px 0; border-bottom: 3px solid var(--accent-color); }
.header-flex { display: flex; justify-content: space-between; align-items: center; }
.logo a { font-size: 24px; font-weight: 800; text-decoration: none; }
.brand-main { color: var(--white); }
.brand-sub { color: var(--accent-color); }
.main-nav a { color: var(--text-light); text-decoration: none; margin-left: 20px; font-weight: 600; }
.main-nav a:hover, .main-nav a.active { color: var(--accent-color); }

/* CONTENIDO INTERNO DENSE */
.page-content { padding: 60px 20px; max-width: 800px; }
.about-section h1 { font-size: 36px; color: var(--primary-color); margin-bottom: 25px; line-height: 1.2; }
.about-section h2 { font-size: 22px; color: var(--secondary-color); margin-top: 35px; margin-bottom: 15px; text-align: left; }
.about-section p { margin-bottom: 20px; text-align: justify; color: #333; }
.about-section ul { margin-left: 20px; margin-bottom: 30px; }
.about-section li { margin-bottom: 10px; }

/* FOOTER */
.main-footer { background-color: #111; color: #aaa; padding: 60px 0 30px 0; font-size: 14px; margin-top: 80px; }
.footer-disclaimer { border-bottom: 1px solid #222; padding-bottom: 30px; margin-bottom: 30px; text-align: justify; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.footer-links a { color: #aaa; text-decoration: none; margin-left: 15px; }
.footer-links a:hover { color: var(--white); }

@media (max-width: 768px) {
    .header-flex, .footer-bottom { flex-direction: column; text-align: center; }
    .main-nav { margin-top: 15px; }
}