:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --accent-blue: #38bdf8;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-main);
    line-height: 1.6;
    scroll-behavior: smooth;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
}

/* Navbar */
.navbar {
    background-color: rgba(15, 23, 42, 0.95);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #334155;
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}
.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}
.logo span { color: var(--accent-blue); }
.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 1.5rem;
    transition: var(--transition);
}
.nav-links a:hover { color: var(--accent-blue); }

/* Hero */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    min-height: 70vh;
    display: flex;
    align-items: center;
}
.hero-text h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}
.hero-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
}

/* Botones */
.btn-primary, .btn-secondary, .btn-submit {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}
.btn-primary { background-color: var(--accent-blue); color: var(--bg-primary); }
.btn-primary:hover { background-color: var(--white); }
.btn-secondary { border: 2px solid var(--accent-blue); color: var(--accent-blue); }
.btn-secondary:hover { background-color: var(--accent-blue); color: var(--bg-primary); }

/* Secciones Generales */
section { padding: 4rem 0; }
h2 { font-size: 2.2rem; margin-bottom: 1rem; text-align: center;}
.subtitle { text-align: center; color: var(--text-muted); margin-bottom: 3rem; max-width: 700px; margin-inline: auto; }

/* Grillas (Secciones y Servicios) */
.about-grid, .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}
.about-card, .service-item {
    background-color: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: 8px;
    border: 1px solid #334155;
    transition: var(--transition);
}
.about-card:hover, .service-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}
.about-card i, .service-item i {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
}
.about-card h3, .service-item h3 { margin-bottom: 1rem; }
.about-card p, .service-item p { color: var(--text-muted); }

/* Contacto */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 4rem;
    align-items: center;
}
.info-list { list-style: none; margin-top: 2rem; }
.info-list li { margin-bottom: 1rem; color: var(--text-muted); }
.info-list i { color: var(--accent-blue); margin-right: 0.75rem; }

.contact-form {
    background-color: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: 8px;
    border: 1px solid #334155;
}
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-primary);
    border: 1px solid #334155;
    color: var(--white);
    border-radius: 4px;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
}
.btn-submit {
    background-color: var(--accent-blue);
    color: var(--bg-primary);
    border: none;
    width: 100%;
    font-size: 1rem;
}

/* Footer */
.footer { border-top: 1px solid #334155; padding: 2rem 0; text-align: center; color: var(--text-muted); }
.footer-links a { color: var(--text-muted); text-decoration: none; margin: 0 0.5rem; }
.footer-links a:hover { color: var(--accent-blue); }

/* Responsive */
@media (max-width: 768px) {
    .navbar .container { flex-direction: column; gap: 1rem; }
    .nav-links a { margin: 0 0.75rem; }
    .hero-text h1 { font-size: 2.2rem; }
}

/* Color personalizado para el botón de WhatsApp */
#whatsappForm .btn-submit {
    background-color: #25d366; /* Verde oficial de WhatsApp */
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem; /* Espaciado entre el ícono y el texto */
    font-size: 1.1rem;
}

#whatsappForm .btn-submit:hover {
    background-color: #128c7e; /* Verde más oscuro al pasar el cursor */
    transform: scale(1.02);
}