/* Lifted verbatim from assignment-submission-content.blade.php.
   Inline it was 12,037 bytes of HTML on every render;
   as a file the browser fetches it once. */
/* Optimize CSS loading by deferring non-critical styles */
.upload-area:hover {
    border-color: var(--primary/70) !important;
    background: linear-gradient(135deg, var(--muted/70) 0%, var(--muted/50) 100%) !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
}

.help-item {
    padding: 1rem;
    border-radius: 8px;
    background: var(--muted/30);
    border: 1px solid var(--muted/50);
}

.help-item:hover {
    background: var(--muted/50);
    border-color: var(--muted/70);
}

/* Add loading states for better perceived performance */
.kt-card {
    transition: opacity 0.3s ease;
}

.kt-card.loading {
    opacity: 0.7;
}

/* Optimize table rendering */
#kt_datatable_submissions tbody tr {
    transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Reduce initial paint time */
.upload-section,
.check-section,
.status-monitoring-section {
    will-change: transform;
}

/* Spin animation for refund loading */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Pulse animation for refund gift icon */
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(0.95); }
}
/* ========================================
   Bulk Upload Modal - Apple/Stripe Inspired
   Modern, clean design with smooth animations
   ======================================== */

/* Modal Overlay & Container */
.codequiry-bulk-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    animation: codequiry-fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.codequiry-bulk-modal.show {
    display: flex !important;
}

.codequiry-bulk-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.codequiry-bulk-modal-container {
    position: relative;
    width: 90%;
    max-width: 680px;
    max-height: 85vh;
    margin: 0 auto;
    animation: codequiry-slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.codequiry-bulk-modal-content {
    background: var(--background);
    border-radius: 8px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.dark .codequiry-bulk-modal-content {
    border-color: rgba(255, 255, 255, 0.1);
}

/* Header */
.codequiry-bulk-modal-header {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 1.25rem 1.5rem;
    background: var(--background);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.dark .codequiry-bulk-modal-header {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

.codequiry-bulk-modal-header-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: #3b82f6;
    color: white;
}

.codequiry-bulk-modal-header-text {
    flex: 1;
}

.codequiry-bulk-modal-title {
    margin: 0 0 0.125rem 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--foreground);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.codequiry-bulk-modal-subtitle {
    margin: 0;
    font-size: 0.8125rem;
    color: var(--muted-foreground);
}

.codequiry-bulk-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: transparent;
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--muted-foreground);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.dark .codequiry-bulk-modal-close {
    border-color: rgba(255, 255, 255, 0.12);
}

.codequiry-bulk-modal-close:hover {
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 0, 0, 0.12);
    color: var(--foreground);
    transform: scale(1.05);
}

.dark .codequiry-bulk-modal-close:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.16);
}

/* Body */
.codequiry-bulk-modal-body {
    padding: 1.5rem;
    max-height: calc(90vh - 200px);
    overflow-y: auto;
}

/* Dropzone */
.codequiry-bulk-dropzone.dropzone {
    border: 2px dashed rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    background: var(--background);
    padding: 0;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 200px;
}

.dark .codequiry-bulk-dropzone.dropzone {
    border-color: rgba(255, 255, 255, 0.15);
}

.codequiry-bulk-dropzone.dropzone:hover {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.02);
}

.codequiry-bulk-dropzone.dropzone.dz-drag-hover {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.05);
    border-style: solid;
}

.codequiry-bulk-dropzone .dz-message .dz-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.codequiry-bulk-dropzone .dz-message .dz-subtext {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.codequiry-bulk-dropzone .dz-preview {
    margin: 0.5rem;
}

.codequiry-bulk-dropzone .dz-preview .dz-progress {
    height: 3px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.1);
}

.dark .codequiry-bulk-dropzone .dz-preview .dz-progress {
    background: rgba(255, 255, 255, 0.1);
}

.codequiry-bulk-dropzone .dz-preview .dz-progress .dz-upload {
    background: #3b82f6;
}

/* Bulk-mode (>10 files): hide per-file rows and their animations to keep the browser responsive */
.codequiry-bulk-dropzone.cq-bulk-compact .dz-preview { display: none !important; }
.codequiry-bulk-dropzone .dz-preview,
.codequiry-bulk-dropzone .dz-preview * {
    animation: none !important;
    transition: none !important;
}

/* Aggregate progress card shown in compact mode */
.cq-bulk-aggregate {
    display: none;
    margin-top: 1rem;
    padding: 0.875rem 1.125rem;
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
}
.cq-bulk-aggregate.is-active { display: block; }
.cq-bulk-aggregate-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--foreground);
}
.cq-bulk-aggregate-counts { font-weight: 600; font-variant-numeric: tabular-nums; }
.cq-bulk-aggregate-bar {
    height: 6px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.08);
    overflow: hidden;
}
.dark .cq-bulk-aggregate-bar { background: rgba(255, 255, 255, 0.1); }
.cq-bulk-aggregate-fill {
    height: 100%;
    background: #3b82f6;
    width: 0%;
    transition: width 0.15s linear;
}

/* Stats */
.codequiry-bulk-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.codequiry-bulk-stat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid;
}

.codequiry-bulk-stat-item svg {
    flex-shrink: 0;
}

.codequiry-bulk-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.codequiry-bulk-stat-label {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-top: 0.25rem;
}

.codequiry-bulk-stat-blue {
    background: rgba(59, 130, 246, 0.05);
    border-color: rgba(59, 130, 246, 0.2);
    color: #2563eb;
}

.dark .codequiry-bulk-stat-blue {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.25);
    color: #60a5fa;
}

.codequiry-bulk-stat-green {
    background: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.2);
    color: #059669;
}

.dark .codequiry-bulk-stat-green {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.25);
    color: #10b981;
}

.codequiry-bulk-stat-red {
    background: rgba(239, 68, 68, 0.05);
    border-color: rgba(239, 68, 68, 0.2);
    color: #dc2626;
}

.dark .codequiry-bulk-stat-red {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.25);
    color: #f87171;
}

/* Info */
.codequiry-bulk-info {
    display: flex;
    gap: 0.75rem;
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.dark .codequiry-bulk-info {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.08);
}

.codequiry-bulk-info-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.codequiry-bulk-info-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.8125rem;
    color: var(--muted-foreground);
}

/* Footer */
.codequiry-bulk-modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.02);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.dark .codequiry-bulk-modal-footer {
    background: rgba(255, 255, 255, 0.02);
    border-top-color: rgba(255, 255, 255, 0.06);
}

.codequiry-bulk-modal-footer-actions {
    display: flex;
    gap: 0.75rem;
    margin-left: auto;
}

/* Buttons */
.codequiry-bulk-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.codequiry-bulk-btn svg {
    flex-shrink: 0;
}

.codequiry-bulk-btn-primary {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

.codequiry-bulk-btn-primary:hover {
    background: #2563eb;
    border-color: #2563eb;
}

.codequiry-bulk-btn-outline {
    background: var(--background);
    border-color: rgba(0, 0, 0, 0.12);
    color: var(--foreground);
}

.codequiry-bulk-btn-outline:hover {
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 0, 0, 0.2);
}

.dark .codequiry-bulk-btn-outline {
    border-color: rgba(255, 255, 255, 0.12);
}

.dark .codequiry-bulk-btn-outline:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.2);
}

.codequiry-bulk-btn-secondary {
    background: #ef4444;
    color: white;
}

.codequiry-bulk-btn-secondary:hover {
    background: #dc2626;
}

/* Animations */
@keyframes codequiry-fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes codequiry-slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to { 
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .codequiry-bulk-modal-container {
        width: 80%;
    }
}

@media (max-width: 768px) {
    .codequiry-bulk-modal-container {
        width: 95%;
        margin: 1rem;
    }
    
    .codequiry-bulk-stats {
        grid-template-columns: 1fr;
    }
    
    .codequiry-bulk-modal-header {
        padding: 1rem;
    }
    
    .codequiry-bulk-modal-body {
        padding: 1rem;
    }
}

/* Dark mode support */
.dark .codequiry-bulk-modal-content {
    background: #1f2937;
}

.dark .codequiry-bulk-dropzone.dropzone {
    background: #1a1a1a;
    border-color: rgba(16, 185, 129, 0.4);
}

.dark .codequiry-bulk-dropzone.dropzone:hover {
    background: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.6);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}

.dark .codequiry-bulk-dropzone.dropzone.dz-drag-hover {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.8);
}

.dark .codequiry-bulk-dropzone .dz-message .dz-text {
    color: #f9fafb;
}

.dark .codequiry-bulk-dropzone .dz-message .dz-subtext {
    color: #9ca3af;
}

.dark .codequiry-bulk-modal-footer {
    background: #111827;
    border-top-color: #374151;
}

.dark .codequiry-bulk-info {
    background: #111827;
    border-color: #374151;
}