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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #0f172a;
    color: white;
    line-height: 1.6;
}

/* HERO */
.hero {
    padding: 80px 20px;
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    margin: auto;
    flex-wrap: wrap;
}

.hero h1 {
    font-size: 2.8em;
    margin-bottom: 10px;
}

.hero p {
    margin-bottom: 20px;
    font-size: 1.1em;
    color: #cbd5f5;
}

/* BOTÓN */
.btn {
    display: inline-block;
    padding: 12px 25px;
    background: #38bdf8;
    color: #0f172a;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn:hover {
    background: #0ea5e9;
    transform: translateY(-2px);
}

/* IMAGEN HERO */
.hero-img img {
    width: 100%;
    max-width: 320px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* SECCIONES */
section {
    padding: 70px 20px;
    text-align: center;
}

section h2 {
    font-size: 2em;
    margin-bottom: 15px;
}

section p {
    max-width: 600px;
    margin: auto;
    color: #cbd5e1;
}

/* CARDS */
.contenedor-cards {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.card {
    background: #1e293b;
    padding: 30px;
    border-radius: 15px;
    width: 280px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.card:hover {
    transform: translateY(-10px) scale(1.03);
}

.destacado {
    border: 2px solid #38bdf8;
    transform: scale(1.05);
}

.precio {
    color: #38bdf8;
    font-weight: bold;
    margin: 15px 0;
    font-size: 1.2em;
}

ul {
    list-style: none;
}

ul li {
    margin: 10px 0;
    color: #cbd5e1;
}

/* FOOTER */
footer {
    background: #020617;
    padding: 25px;
    text-align: center;
    margin-top: 40px;
    color: #94a3b8;
}

.nota {
    margin-top: 20px;
    font-size: 0.9em;
    color: #94a3b8;
}

/* WHATSAPP FLOAT */
.whatsapp-float {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.4);
    transition: all 0.3s ease;
    z-index: 1000;
}

.whatsapp-float img {
    width: 32px;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #1ebe5d;
}

/* EFECTO LATIDO */
.whatsapp-float::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(37, 211, 102, 0.4);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.7; }
    70% { transform: scale(1.6); opacity: 0; }
    100% { opacity: 0; }
}

/* TEXTO WHATSAPP */
.whatsapp-float span {
    position: absolute;
    right: 70px;
    background: #111;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 13px;
    opacity: 0;
    transition: 0.3s;
    white-space: nowrap;
}

.whatsapp-float:hover span {
    opacity: 1;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-img img {
        margin-top: 30px;
        max-width: 250px;
    }
}