/* Professional Loading Overlay - Complete Background Coverage */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ffffff;
    /* Solid white for complete coverage */
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease-in-out;
}

/* Alternative dark overlay version */
.loading-overlay.dark {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(3px);
}

.loading-overlay.dark .loading-container {
    background: white;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
}

/* Hide content during loading */
.loading-hidden {
    visibility: hidden !important;
    opacity: 0 !important;
    transition: opacity 0.2s ease-in-out;
}

/* Alternative: blur background content instead of hiding */
.loading-blur {
    filter: blur(3px);
    pointer-events: none;
    transition: filter 0.3s ease-in-out;
}

.loading-container {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    max-width: 320px;
    min-width: 280px;
}

/* Modern Spinner */
.modern-spinner {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.5rem;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #0d6efd;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    position: relative;
}

.modern-spinner::before {
    display: none;
}

.modern-spinner::after {
    display: none;
}

/* Pulse Animation for Dots */
.loading-dots {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 1rem 0;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: #6c757d;
    border-radius: 50%;
    margin: 0 3px;
    animation: pulse-dot 1.4s ease-in-out infinite both;
}

.loading-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

.loading-dots span:nth-child(3) {
    animation-delay: 0s;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse-dot {

    0%,
    80%,
    100% {
        transform: scale(0.6);
        opacity: 0.5;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Progress Bar Variant */
.loading-progress {
    width: 100%;
    height: 4px;
    background: #e9ecef;
    border-radius: 2px;
    overflow: hidden;
    margin: 1rem 0;
}

.loading-progress-bar {
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, #0d6efd, #0dcaf0);
    border-radius: 2px;
    animation: loading-progress 2s ease-in-out infinite;
}

@keyframes loading-progress {
    0% {
        transform: translateX(-100%);
    }

    50% {
        transform: translateX(200%);
    }

    100% {
        transform: translateX(300%);
    }
}

/* Alternative Spinner Styles */
.ring-spinner {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.5rem;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #0d6efd;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.pulse-spinner {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.5rem;
    background: #0d6efd;
    border-radius: 50%;
    animation: pulse-scale 1.5s ease-in-out infinite;
}

@keyframes pulse-scale {
    0% {
        transform: scale(0);
        opacity: 1;
    }

    100% {
        transform: scale(1);
        opacity: 0;
    }
}

/* Hide loading by default */
.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner-variant.hidden {
    display: none;
}

@media (min-width: 992px) {
    .aside-enabled.aside-fixed[data-kt-aside-minimize=on] .loading-overlay:not(.full-screen-overlay) {
        margin-left: 140px;
        width: calc(100% - 140px);
    }

    .header-fixed .loading-overlay:not(.full-screen-overlay) {
        margin-top: 65px;
        height: calc(100% - 65px);
    }

    .header-fixed.toolbar-fixed .loading-overlay:not(.full-screen-overlay) {
        margin-top: calc(65px + var(--kt-toolbar-height));
        height: calc(100% - (65px + var(--kt-toolbar-height)));
    }
}

@media (max-width: 991.98px) {
    .header-tablet-and-mobile-fixed .loading-overlay:not(.full-screen-overlay) {
        margin-top: 55px;
        height: calc(100% - 55px);
    }

    .header-tablet-and-mobile-fixed.toolbar-tablet-and-mobile-fixed .loading-overlay:not(.full-screen-overlay) {
        margin-top: calc(55px + var(--kt-toolbar-height-tablet-and-mobile));
        height: calc(100% - (55px + var(--kt-toolbar-height-tablet-and-mobile)));
    }
}