:root {
    --primary: #0a192f; /* Azul Navy Profesional */
    --gold: #c99a22;    /* Oro de Marca */
    --white: #ffffff;
    --gray-bg: #f8fbff;
    --text-dark: #1a1a1a;
    --glass: rgba(255, 255, 255, 0.05);
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    color: var(--text-dark);
    line-height: 1.6;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header Glassmorphism */
.header {
    background: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(201, 154, 34, 0.2);
}

.nav { height: 90px; display: flex; justify-content: space-between; align-items: center; }
.nav-menu a { color: var(--white); margin-left: 30px; font-weight: 500; font-size: 0.9rem; }

/* Hero Section con Imagen de Fondo */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(10, 25, 47, 0.8), rgba(10, 25, 47, 0.8)), 
                url('img/hero-modern-architecture.jpg') center/cover;
    color: var(--white);
}

h1 { font-size: 4rem; line-height: 1.1; margin: 20px 0; font-weight: 800; }
.text-gold { color: var(--gold); }

/* Secciones */
.section { padding: 100px 0; }
.section--dark { background: var(--primary); color: var(--white); }
.section--light { background: var(--gray-bg); }

.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 50px; }

.card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    transition: 0.3s;
}

.card:hover { transform: translateY(-10px); }

.card__img-wrapper {
    height: 200px;
    background-color: #ddd;
    background-size: cover;
    background-position: center;
}

/* Estilo Academia (Mix Abana-Arimast) */
.academia-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.academia__visual {
    height: 500px;
    background: url('img/immersive-classroom-vr.jpg') center/cover;
    border-radius: 30px;
    position: relative;
    border: 2px solid var(--gold);
}

.glass-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 15px 30px;
    border-radius: 50px;
    color: white;
}

/* Botones */
.btn { padding: 15px 35px; border-radius: 5px; font-weight: 700; display: inline-block; transition: 0.3s; }
.btn--gold { background: var(--gold); color: var(--primary); }
.btn--primary { background: var(--gold); color: var(--white); }
.btn--outline { border: 2px solid var(--gold); color: var(--gold); }