:root {
    --bg: #050505;
    --green: #00ff7f;
    --panel: #0b0b0b;
    --text: #e5e5e5;
    --radius: 14px;
    --shadow: 0 6px 18px rgba(0,0,0,0.7);
}

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

body {
    font-family: 'Orbitron', sans-serif;
    background-color: var(--bg);
    color: var(--text);
}

/* ====== MENÚ SUPERIOR FIJO ====== */
.top-nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: #0b0b0b;
    border-bottom: 2px solid var(--green);
    z-index: 100;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
}

.top-nav .logo {
    font-weight: 900;
    color: var(--green);
    font-size: 1.5rem;
}

.top-nav nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

.top-nav nav a {
    text-decoration: none;
    color: var(--green);
    font-weight: 700;
    transition: 0.3s;
}

.top-nav nav a:hover {
    color: white;
    text-shadow: 0 0 10px var(--green);
}

/* ====== HERO DIVIDIDO ====== */
.hero-split {
    margin-top: 70px; /* espacio para el menú */
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
    justify-content: center;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding: 40px 20px;
}

.hero-left, .hero-right {
    flex: 1 1 400px;
}

.hero-left img, .hero-left video {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-right h1 {
    font-size: 2.5rem;
    color: var(--green);
    margin-bottom: 15px;
}

.hero-right p {
    font-size: 1.1rem;
    line-height: 1.6;
}

/* ====== GRID DE CARDS 3x2 ====== */
.container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 3 columnas fijas */
    grid-template-rows: repeat(2, auto);   /* 2 filas */
    gap: 20px;
    margin-bottom: 60px;
}

.card {
    background: var(--panel);
    padding: 15px;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(0,255,127,0.4);
}

.card-img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 12px;
}

.card h2 {
    margin-bottom: 10px;
    color: var(--green);
    text-align: center;
}

.card p {
    text-align: center;
    font-size: 0.95rem;
}

/* ====== SECCIONES ====== */
section {
    background: var(--panel);
    border-radius: var(--radius);
    padding: 25px;
    margin-bottom: 40px;
    box-shadow: var(--shadow);
}

section h2 {
    color: var(--green);
    margin-bottom: 15px;
}

section p, section ul {
    color: #ccc;
    line-height: 1.6;
}

section ul li {
    margin-bottom: 8px;
}

/* ====== RESPONSIVE ====== */
@media(max-width: 950px) {
    .grid-cards {
        grid-template-columns: repeat(2, 1fr); /* 2 columnas en tablet */
    }
}

@media(max-width: 650px) {
    .grid-cards {
        grid-template-columns: 1fr; /* 1 columna en móviles */
    }
    .hero-split {
        flex-direction: column;
    }
}