body {
    background-color: #000000;
    color: #ffffff;
    -webkit-font-smoothing: antialiased;
}

/* Efectos de Brillo */
.text-glow {
    text-shadow: 0 0 25px rgba(212, 175, 55, 0.7), 0 0 10px rgba(212, 175, 55, 0.4);
}

.text-glow-subtle {
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

.box-shadow-gold {
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.5);
}

/* Animaciones */
.fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pulse-anim {
    animation: pulse 4s infinite alternate;
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 0.1; }
    100% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.15; }
}

.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }

/* Tarjetas de Precios con más brillo y estilo oscuro */
.pricing-card {
    background: linear-gradient(145deg, #0a0a0a, #111111);
    border: 1px solid #222;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: #D4AF37;
    box-shadow: 0 15px 50px -10px rgba(212, 175, 55, 0.3);
}

.pricing-card.premium {
    background: linear-gradient(145deg, #121212, #1a1a1a);
    border: 1px solid #D4AF37;
    box-shadow: 0 0 40px -10px rgba(212, 175, 55, 0.4);
}

.pricing-card.premium:hover {
    box-shadow: 0 0 60px -5px rgba(212, 175, 55, 0.6);
}

/* Botones */
.btn-gold {
    background: transparent;
    color: #D4AF37;
    border: 1px solid #D4AF37;
    transition: all 0.3s ease;
}

.btn-gold:hover {
    background: #D4AF37;
    color: #000000;
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.5);
}

.btn-gold-solid {
    background: #D4AF37;
    color: #000000;
    transition: all 0.3s ease;
}

.btn-gold-solid:hover {
    background: #FFF0BA;
    box-shadow: 0 0 25px rgba(212, 175, 55, 0.7);
}

.glass-nav {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* 3D Flip Cards para la Historia */
.flip-card {
    background-color: transparent;
    width: 100%;
    height: 320px;
    perspective: 1000px;
    cursor: pointer;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 0.75rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2.5rem;
    border: 1px solid #333;
}

.flip-card-front {
    background: linear-gradient(145deg, #0f0f0f, #1a1a1a);
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
}

.flip-card-front:hover {
    border-color: rgba(212, 175, 55, 0.5);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

.flip-card-back {
    background: linear-gradient(145deg, #D4AF37, #B8972E);
    color: #000000;
    transform: rotateY(180deg);
    border: none;
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.4);
}