.upload-subtext {
        font-size: 0.9rem;
        color: var(--text-muted);
}

.file-input {
    display: none;
}

.upload-form {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 8px center;
    background-repeat: no-repeat;
    background-size: 16px 12px;
    padding-right: 2.5rem;
    appearance: none;
}

.btn-upload {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    justify-content: center;
}

.btn-upload:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.file-preview {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.file-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.file-size {
    font-size: 12px;
    color: var(--text-muted);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

.error-message {
    background: #fee;
    color: #c53030;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #fed7d7;
    margin-bottom: 1rem;
}

.success-message {
    background: #f0fff4;
    color: #22543d;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #c6f6d5;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .upload-container {
        padding: 1rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .upload-form {
        padding: 1.5rem;
    }
}
.drop-area.dragover {
    border-color: var(--primary-color) !important;
    background-color: rgba(139, 92, 246, 0.05) !important;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(139, 92, 246, 0.25);
    background-color: var(--chat-bg);
    color: var(--text-primary);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-secondary);
}

/* Processing Mode Selection Styles */
.processing-mode-container {
    transition: all 0.3s ease;
}

.processing-option {
    transition: all 0.3s ease;
    position: relative;
}

.processing-option:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
}

.processing-option .form-check-input {
    width: 20px;
    height: 20px;
    margin-top: 0;
    border: 2px solid var(--border-color);
}

.processing-option .form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.processing-option .form-check-input:checked[value="fast"] {
    background-color: #28a745;
    border-color: #28a745;
}

.processing-option .form-check-input:checked[value="ocr"] {
    background-color: #6f42c1;
    border-color: #6f42c1;
}

.processing-option .badge {
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
}

@media (max-width: 768px) {
    .processing-mode-container .row {
        gap: 1rem;
    }
    
    .processing-option {
        margin-bottom: 1rem;
    }
}