:root {
    --primary: #52525252;
    --accent: #7663f1;
    --gradient-1: #5d82fbc0;
    --gradient-2: #a877e3c0;
    --glass-effect: rgba(255, 255, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.2);
    --transition-smooth: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --card-border: 1px solid rgba(255, 255, 255, 0.2);
    --card-radius: 20px;
}

/* Animaciones */
@keyframes floatAnimation {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-15px) rotate(2deg); }
    75% { transform: translateY(-5px) rotate(-2deg); }
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 20px rgba(118, 99, 241, 0.3); }
    50% { box-shadow: 0 0 40px rgba(118, 99, 241, 0.6); }
}

@keyframes shimmerEffect {
    0% { transform: translateX(-100%) skewX(-15deg); }
    100% { transform: translateX(200%) skewX(-15deg); }
}

/* Estilos generales */
body {
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
    background-size: 400% 400%;
    animation: gradientFlow 15s ease infinite;
    min-height: 100vh;
}

/* Tarjeta del formulario */
.card {
    background: var(--glass-effect);
    backdrop-filter: blur(10px);
    border: var(--card-border) !important;
    border-radius: var(--card-radius) !important;
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: var(--transition-bounce);
}

.card:hover {
    transform: translateY(-10px) rotateX(5deg);
    animation: glowPulse 2s infinite;
}

/* Icono de contacto */
.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, var(--gradient-1), var(--gradient-2));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 20px auto;
    transition: var(--transition-bounce);
    animation: floatAnimation 3s ease-in-out infinite;
}

.contact-icon i {
    font-size: 2rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

/* Campos del formulario */
.form-control {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--card-radius);
    color: white;
    transition: var(--transition-smooth);
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(118, 99, 241, 0.3);
    color: white;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

/* Etiquetas flotantes */
.form-floating label {
    color: rgba(255, 255, 255, 0.8);
}

.form-floating>.form-control:focus~label,
.form-floating>.form-control:not(:placeholder-shown)~label {
    color: var(--accent);
}

/* Botón de envío */
.btn-primary {
    background: linear-gradient(45deg, var(--gradient-1), var(--gradient-2));
    border: none;
    border-radius: var(--card-radius);
    padding: 12px 30px;
    color: white;
    font-weight: 600;
    letter-spacing: 1px;
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255,255,255,0.2),
        transparent
    );
    transition: var(--transition-smooth);
}

.btn-primary:hover::before {
    animation: shimmerEffect 2s infinite;
}

/* Textos */
h2, p {
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

/* Media Queries */
@media (max-width: 768px) {
    .card {
        margin: 1rem;
    }
    
    .contact-icon {
        width: 60px;
        height: 60px;
    }
    
    .contact-icon i {
        font-size: 1.5rem;
    }
}