/**
 * Blue Loader Component
 * Reusable loader for data fetching operations
 */

/* Main Loader Container */
.blue-loader-container {
    position: relative;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.blue-loader-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    z-index: 9999;
    min-height: 100vh;
}

/* Blue Spinner */
.blue-loader {
    display: inline-block;
    width: 50px;
    height: 50px;
    border: 4px solid rgba(59, 130, 246, 0.2);
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: blue-spin 0.8s linear infinite;
}

.blue-loader.small {
    width: 30px;
    height: 30px;
    border-width: 3px;
}

.blue-loader.medium {
    width: 40px;
    height: 40px;
    border-width: 3.5px;
}

.blue-loader.large {
    width: 60px;
    height: 60px;
    border-width: 5px;
}

/* Spinner Animation */
@keyframes blue-spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Loader with Text */
.blue-loader-with-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.blue-loader-text {
    color: #3b82f6;
    font-size: 14px;
    font-weight: 500;
    margin: 0;
}

/* Overlay Loader (for modals, forms) */
.blue-loader-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    border-radius: inherit;
}

/* Inline Loader (for buttons, small areas) */
.blue-loader-inline {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(59, 130, 246, 0.2);
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: blue-spin 0.6s linear infinite;
    vertical-align: middle;
    margin-right: 8px;
}

/* Page Loading (for full page loads) */
#page-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
}

#page-loading.show {
    display: flex;
}

#page-loading .blue-loader {
    width: 60px;
    height: 60px;
    border-width: 5px;
}

/* Candidates Page Specific */
.candidates-listing.loading {
    position: relative;
    min-height: 400px;
}

.candidates-listing.loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(2px);
    z-index: 10;
}

.candidates-listing.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 4px solid rgba(59, 130, 246, 0.2);
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: blue-spin 0.8s linear infinite;
    z-index: 11;
}

/* Screening Questions Loader */
#job-screening-questions-wrap.loading {
    position: relative;
    min-height: 200px;
    display: block !important;
}

#job-screening-questions-wrap.loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(3px);
    z-index: 10;
    border-radius: 8px;
}

#job-screening-questions-wrap.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 4px solid rgba(59, 130, 246, 0.2);
    border-top-color: #3b82f6;
    border-right-color: #3b82f6;
    border-radius: 50%;
    animation: blue-spin 0.8s linear infinite;
    z-index: 11;
}

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.blue-loader-container,
#page-loading {
    animation: fadeIn 0.2s ease-in;
}

/* Responsive */
@media (max-width: 768px) {
    .blue-loader {
        width: 40px;
        height: 40px;
    }
    
    .blue-loader.large {
        width: 50px;
        height: 50px;
    }
}