#page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

#page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-container {
    text-align: center;
    max-width: 400px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(74, 111, 165, 0.1);
}

/* Logo animado */
.loader-logo {
    margin-bottom: 30px;
}

.loader-logo h1 {
    font-size: 2.2rem;
    color: #4a6fa5;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.loader-logo span {
    color: #6b8cbc;
}

.loader-logo i {
    font-size: 2.5rem;
    color: #4a6fa5;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

/* Spinner */
.loader-spinner {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    position: relative;
}

.loader-spinner::before,
.loader-spinner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 4px solid transparent;
    border-top-color: #4a6fa5;
    animation: spin 1s linear infinite;
}

.loader-spinner::after {
    border-top-color: #6b8cbc;
    animation: spin 1.5s linear infinite;
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Texto de carga */
.loader-text {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 25px;
    font-weight: 500;
    min-height: 24px;
}

/* Barra de progreso */
.loader-progress-container {
    width: 100%;
    height: 8px;
    background: #eef2f7;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
}

.loader-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #4a6fa5, #6b8cbc);
    width: 0%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Porcentaje */
.loader-percentage {
    font-size: 1.8rem;
    font-weight: 700;
    color: #4a6fa5;
    margin-bottom: 10px;
}

/* Mensaje de estado */
.loader-status {
    font-size: 0.9rem;
    color: #777;
    min-height: 20px;
}

/* Puntos de carga */
.loading-dots {
    display: inline-block;
}

.loading-dots span {
    animation: dots 1.4s infinite;
    display: inline-block;
}

.loading-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes dots {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
}

/* Optimizaciones para móviles */
@media (max-width: 768px) {
    .loader-container {
        padding: 30px 20px;
        margin: 20px;
        max-width: 90%;
    }
    
    .loader-logo h1 {
        font-size: 1.8rem;
    }
    
    .loader-spinner {
        width: 60px;
        height: 60px;
    }
}

/* Animación de salida */
@keyframes fadeOutUp {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

.loader-exit {
    animation: fadeOutUp 0.8s ease forwards;
}
/* ===== OPTIMIZACIONES POST-LOADING ===== */
body.loaded {
    /* Animaciones suaves después del loading */
}

body.loaded .hero {
    animation: fadeInUp 1s ease;
}

body.loaded .producto-card {
    animation: fadeIn 0.5s ease;
    animation-fill-mode: both;
}

/* Retrasos escalonados para las tarjetas */
body.loaded .producto-card:nth-child(1) { animation-delay: 0.1s; }
body.loaded .producto-card:nth-child(2) { animation-delay: 0.2s; }
body.loaded .producto-card:nth-child(3) { animation-delay: 0.3s; }
body.loaded .producto-card:nth-child(4) { animation-delay: 0.4s; }
body.loaded .producto-card:nth-child(5) { animation-delay: 0.5s; }

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mejorar rendimiento de animaciones */
.producto-card,
.beneficio-card,
.info-item {
    will-change: transform, opacity;
}

/* Optimizar imágenes */
img {
    content-visibility: auto;
}

/* Clase para ocultar elementos hasta que se cargue */
.preload-hidden {
    opacity: 0;
    visibility: hidden;
}

body.loaded .preload-hidden {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}