/* ===== LOADER GLOBAL INDEPENDIENTE =====
   Loader que se sobrepone en toda la pantalla
   Estilo iOS con animaciones suaves
   ======================================= */

/* Overlay principal que cubre toda la pantalla */
#global-loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: none; /* Oculto por defecto */
    justify-content: center;
    align-items: center;
    z-index: 999999; /* Máxima prioridad */
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

/* Cuando está activo */
#global-loader-overlay.active {
    display: flex;
    opacity: 1;
}

/* Contenedor del loader */
.global-loader-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    min-width: 200px;
    transform: scale(0.8);
    transition: transform 0.3s ease-out;
}

#global-loader-overlay.active .global-loader-container {
    transform: scale(1);
}

/* Spinner principal estilo iOS */
.global-loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(0, 122, 255, 0.2);
    border-top: 4px solid #007AFF;
    border-radius: 50%;
    animation: global-loader-spin 1s linear infinite;
    margin: 0 auto 20px;
}

/* Animación del spinner */
@keyframes global-loader-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Texto del loader */
.global-loader-text {
    color: #1C1C1E;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    font-weight: 500;
    margin: 0;
    line-height: 1.4;
}

/* Texto secundario (opcional) */
.global-loader-subtext {
    color: #8E8E93;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    font-weight: 400;
    margin: 8px 0 0 0;
    line-height: 1.3;
}

/* Variante con puntos animados */
.global-loader-dots {
    display: inline-block;
}

.global-loader-dots::after {
    content: '';
    animation: global-loader-dots 1.5s infinite;
}

@keyframes global-loader-dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Responsive */
@media (max-width: 480px) {
    .global-loader-container {
        margin: 20px;
        padding: 30px 20px;
        min-width: auto;
        width: calc(100vw - 40px);
        max-width: 300px;
    }

    .global-loader-spinner {
        width: 40px;
        height: 40px;
        border-width: 3px;
    }

    .global-loader-text {
        font-size: 15px;
    }

    .global-loader-subtext {
        font-size: 13px;
    }
}

/* Variante oscura (opcional) */
#global-loader-overlay.dark {
    background-color: rgba(0, 0, 0, 0.8);
}

#global-loader-overlay.dark .global-loader-container {
    background: rgba(28, 28, 30, 0.95);
    color: #FFFFFF;
}

#global-loader-overlay.dark .global-loader-text {
    color: #FFFFFF;
}

#global-loader-overlay.dark .global-loader-subtext {
    color: #8E8E93;
}

#global-loader-overlay.dark .global-loader-spinner {
    border-color: rgba(255, 255, 255, 0.2);
    border-top-color: #007AFF;
}

/* Animación de entrada suave */
@keyframes global-loader-fade-in {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Animación de salida suave */
@keyframes global-loader-fade-out {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.9);
    }
}

/* Prevenir scroll cuando el loader está activo */
body.loader-active {
    overflow: hidden;
}