/* Animaciones básicas */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Aplicación de animaciones */
.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.slide-up {
    animation: slideUp 0.6s ease-out forwards;
}

.pulse {
    animation: pulse 2s infinite;
}

/* Animaciones específicas */
.product-card {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }

/* Transiciones para hover */
.btn, .product-card, .social-links a, .brand-slide {
    transition: all 0.3s ease;
}

/* Efecto para header al hacer scroll */
.main-header {
    transition: all 0.3s ease;
}

.main-header.scrolled {
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.98);
}

.main-header.scrolled .logo h1 {
    color: var(--primary);
}

/* Efecto para menú móvil */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 30px;
    height: 24px;
    position: relative;
    cursor: pointer;
    z-index: 1001;
    padding: 0;
}

.mobile-menu-toggle span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: var(--primary);
    border-radius: 3px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: all 0.3s ease;
}

.mobile-menu-toggle span:nth-child(1) {
    top: 0;
}

.mobile-menu-toggle span:nth-child(2),
.mobile-menu-toggle span:nth-child(3) {
    top: 10px;
}

.mobile-menu-toggle span:nth-child(4) {
    top: 20px;
}

.mobile-menu-toggle.active span:nth-child(1),
.mobile-menu-toggle.active span:nth-child(4) {
    top: 10px;
    width: 0%;
    left: 50%;
}

.mobile-menu-toggle.active span:nth-child(2) {
    transform: rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--white);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
        padding: 80px 20px 20px;
        transition: all 0.4s ease;
        z-index: 1000;
    }
    
    .main-nav.active {
        left: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: 10px 0;
    }
    
    .main-nav a {
        display: block;
        padding: 10px;
        border-radius: 4px;
    }
    
    .main-nav a:hover {
        background: var(--light-gray);
    }
}