body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }
        
        .hero-section {
            background-color: #2563eb;
            position: relative;
            overflow: hidden;
        }
        
        .hero-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('../img/hero_bg.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.4;
            z-index: 0;
        }
        
        .hero-section .container {
            position: relative;
            z-index: 1;
        }
        
        #media-tip-widget {
            background: white;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        
        .dropzone {
            border: 3px dashed #ccc;
            border-radius: 8px;
            padding: 30px 20px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s;
            background: #f8f9fa;
        }
        
        .dropzone.dragover {
            border-color: #2563eb;
            background: #e3f2fd;
        }
        
        .dropzone:hover {
            border-color: #2563eb;
        }
        
        .file-list {
            margin-top: 15px;
        }
        
        .file-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px;
            background: #f8f9fa;
            border-radius: 6px;
            margin-bottom: 8px;
        }
        
        .file-item-info {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: 1;
            min-width: 0;
        }
        
        .file-item-name {
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: #333;
        }
        
        .file-item-size {
            font-size: 12px;
            color: #666;
        }
        
        .pin-input-group {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin: 15px 0;
        }
        
        .pin-input {
            width: 50px;
            height: 50px;
            text-align: center;
            font-size: 24px;
            font-weight: bold;
            border: 2px solid #ddd;
            border-radius: 8px;
        }
        
        .pin-input:focus {
            border-color: #2563eb;
            outline: none;
        }
        
        .progress-bar-container {
            margin-top: 15px;
        }
        
        .upload-progress {
            height: 30px;
            background: #e9ecef;
            border-radius: 15px;
            overflow: hidden;
            margin-bottom: 10px;
        }
        
        .upload-progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #2563eb 0%, #1d4ed8 100%);
            transition: width 0.3s;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 14px;
        }
        
        .helper-text {
            font-size: 12px;
            color: #666;
            margin-top: 5px;
        }
        
        .reference-number {
            font-size: 24px;
            font-weight: bold;
            color: #2563eb;
            font-family: monospace;
            padding: 15px;
            background: #f0f0f0;
            border-radius: 8px;
            margin: 20px 0;
        }
        
        .btn-primary {
            background-color: #2563eb;
            border-color: #2563eb;
        }
        
        .btn-primary:hover {
            background-color: #1d4ed8;
            border-color: #1d4ed8;
        }
        
        @media (max-width: 768px) {
            .pin-input {
                width: 45px;
                height: 45px;
                font-size: 20px;
            }
            
            #media-tip-widget {
                padding: 15px;
            }
        }