.drop-zone {
            border: 2px dashed #c0d0e0;
            border-radius: 12px;
            padding: 2.5rem 1.5rem;
            text-align: center;
            background-color: #f8faff;
            transition: all 0.25s ease;
            cursor: pointer;
            position: relative;
        }
        .drop-zone:hover {
            border-color: var(--primary-color);
            background-color: #f0f6ff;
        }
        .drop-zone.dragover {
            border-color: var(--primary-color);
            background-color: #e5f0ff;
            transform: scale(1.01);
        }
        .drop-zone-icon {
            font-size: 3.5rem;
            color: var(--primary-color);
            opacity: 0.6;
            margin-bottom: 0.75rem;
        }
        .drop-zone-text {
            font-size: 1.1rem;
            color: #555;
        }
        .drop-zone .btn-upload {
            margin-top: 0.75rem;
        }
        .file-info {
            background: #eef4fa;
            border-radius: 8px;
            padding: 0.75rem 1.25rem;
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.95rem;
            margin: 0.5rem 0;
        }
        .file-info i {
            color: var(--primary-color);
        }
        .preview-frame {
            width: 100%;
            min-height: 400px;
            border: 1px solid #dee2e6;
            border-radius: 8px;
            background: #ffffff;
            padding: 0;
            transition: all 0.2s;
        }
        .preview-frame iframe {
            width: 100%;
            height: 500px;
            border: none;
            border-radius: 0 0 8px 8px;
            background: #fff;
        }
        .preview-header {
            background: #f1f4f8;
            padding: 0.6rem 1.2rem;
            border-radius: 8px 8px 0 0;
            font-weight: 500;
            color: #2c3e50;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #dee2e6;
        }
        .raw-toggle {
            cursor: pointer;
            user-select: none;
            font-size: 0.9rem;
            color: var(--primary-color);
        }
        .raw-toggle:hover {
            text-decoration: underline;
        }
        .raw-code {
            background: #1e2a36;
            color: #e4e9f0;
            padding: 1.2rem;
            border-radius: 0 0 8px 8px;
            font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
            font-size: 0.85rem;
            white-space: pre-wrap;
            word-break: break-all;
            max-height: 400px;
            overflow-y: auto;
            display: none;
        }
        .raw-code.show {
            display: block;
        }
        .email-meta {
            background: #f8fafc;
            border-radius: 8px;
            padding: 1rem 1.5rem;
            margin: 1rem 0;
            border-left: 4px solid var(--primary-color);
        }
        .email-meta-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 0.5rem 1.5rem;
        }
        .email-meta-item {
            font-size: 0.95rem;
        }
        .email-meta-item strong {
            color: #2c3e50;
            display: inline-block;
            width: 80px;
        }
        .email-meta-item .value {
            color: #1a2634;
            font-weight: 500;
        }
        .property-table th,
        .property-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        .badge-format {
            background: #e9ecef;
            padding: 0.2rem 0.6rem;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #495057;
        }
        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            background: #eef4fa;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
        }
        .deep-dive p {
            text-align: justify;
        }
        .unit-note {
            font-size: 0.9rem;
            color: #6c757d;
        }
        .coord-input {
            margin-bottom: 0.5rem;
        }
        .input-group-custom {
            margin-bottom: 1rem;
        }
     
        @media (max-width: 768px) {
            .email-meta-grid {
                grid-template-columns: 1fr;
            }
            .preview-frame iframe {
                height: 350px;
            }
        }
                        .email-header { background: #f1f4f8; padding: 1rem 1.5rem; border-radius: 8px; margin-bottom: 1.5rem; border-left: 4px solid #2c6b9e; }
                        .email-header h2 { margin: 0 0 0.5rem 0; font-size: 1.4rem; color: #1a2634; }
                        .email-meta { font-size: 0.9rem; color: #3d4a5a; display: grid; grid-template-columns: auto 1fr; gap: 0.2rem 1rem; }
                        .email-meta .label { font-weight: 600; color: #2c3e50; }
                        .email-.email-body img { max-width: 100%; height: auto; }
                        .email-attachments { margin-top: 1.5rem; padding: 0.75rem 1.25rem; background: #f8fafc; border-radius: 6px; border: 1px dashed #cbd5e1; font-size: 0.9rem; }
                        .email-attachments strong { color: #2c3e50; }
                        .footer-note { margin-top: 2rem; font-size: 0.8rem; color: #94a3b8; text-align: center; border-top: 1px solid #e2e8f0; padding-top: 1rem; }
                        .email-body pre { white-space: pre-wrap; word-break: break-word; }
h1{color:#2c6b9e;}