:root {
    --primary-color: #1e3a8a; /* Azul corporativo */
    --secondary-color: #3b82f6; /* Azul brillante */
    --text-dark: #1f2937; /* Gris oscuro para lectura */
    --bg-light: #f3f4f6; /* Fondo claro para contraste */
    --white: #ffffff;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Navegación */
header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-weight: bold;
    font-size: 1.4rem;
    color: var(--primary-color);
    text-decoration: none;
}

nav a {
    text-decoration: none;
    color: var(--text-dark);
    margin-left: 1.5rem;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Contenedor de Páginas */
.main-content {
    flex: 1;
}

.section {
    padding: 5rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* Hero (Index) */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0f172a 100%);
    color: var(--white);
    padding: 6rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 0.8rem 2rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #2563eb;
}

/* Grid de Contenido (Nosotros) */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

/* Formulario de Contacto */
.bg-form {
    background-color: var(--bg-light);
    width: 100%;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

form {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.form-btn {
    width: 100%;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.75rem;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.form-btn:hover {
    background-color: #172554;
}

/* Páginas Legales */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.legal-content h2 {
    color: var(--primary-color);
    margin: 2rem 0 1rem;
    font-size: 1.5rem;
}

.legal-content p, .legal-content ul {
    margin-bottom: 1.2rem;
    color: #374151;
    text-align: justify;
}

.legal-content ul {
    padding-left: 1.5rem;
}

/* Footer */
footer {
    background-color: #0f172a;
    color: #94a3b8;
    padding: 3rem 2rem;
    text-align: center;
    font-size: 0.9rem;
    margin-top: auto;
}

.footer-links {
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    margin: 0 0.8rem;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--white);
}

@media (max-width: 768px) {
    .grid-2, .contact-wrapper { grid-template-columns: 1fr; gap: 2rem; }
    .hero h1 { font-size: 2rem; }
    .nav-container { flex-direction: column; gap: 1rem; }
    nav a { margin: 0 0.7rem; }
}