/* Modern upload box styling */
        .upload-card-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            margin-bottom: 22px;
        }

        .upload-box-wrapper {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .upload-box-wrapper label {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .deal-upload-box {
            position: relative;
            width: 100%;
            height: 140px;
            border: 2px dashed #cbd5e1;
            border-radius: 16px;
            background: #f8fafc;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            cursor: pointer;
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .deal-upload-box:hover {
            border-color: #10b981;
            background: #f0fdf4;
            color: #166534;
        }

        .deal-upload-box i {
            font-size: 28px;
            color: var(--text-light);
            margin-bottom: 8px;
            transition: color 0.2s;
        }

        .deal-upload-box:hover i {
            color: #10b981;
        }

        .deal-upload-box span {
            font-size: 12px;
            font-weight: 600;
        }

        .deal-upload-box span.sub-text {
            font-size: 10px;
            font-weight: 500;
            color: #94a3b8;
            margin-top: 4px;
        }

        .preview-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
            z-index: 1;
        }

        .preview-overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 12px;
            font-weight: 700;
            opacity: 0;
            z-index: 2;
            transition: opacity 0.2s;
        }

        .deal-upload-box:hover .preview-overlay {
            opacity: 1;
        }

        /* Success screen overlays */
        .success-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(8px);
            z-index: 999999;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: all 0.35s ease;
            box-sizing: border-box;
            padding: 20px;
        }

        .success-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        .success-card {
            background: #ffffff;
            width: 100%;
            max-width: 360px;
            margin: auto;
            border-radius: 28px;
            padding: 36px 28px;
            text-align: center;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
            transform: scale(0.9);
            transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            box-sizing: border-box;
            max-height: 90vh;
            overflow-y: auto;
        }

        .success-overlay.show .success-card {
            transform: scale(1);
        }

        .success-icon-circle {
            width: 72px;
            height: 72px;
            background: #d1fae5;
            color: #10b981;
            font-size: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 8px 20px rgba(16, 185, 129, 0.2);
        }

        .success-card h3 {
            font-size: 18px;
            font-weight: 800;
            color: #0f172a;
            margin-bottom: 8px;
        }

        .success-card p {
            font-size: 13px;
            color: #64748b;
            line-height: 1.6;
            margin-bottom: 24px;
        }