* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: #f8f9fa; color: #333; line-height: 1.6; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
header { background: #e91e63; color: white; padding: 15px 0; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.header-content { display: flex; justify-content: space-between; align-items: center; }
.logo-img { height: 40px; margin-right: 10px; }
nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 20px; }
nav ul li a { color: white; text-decoration: none; font-weight: 500; }
.hero { background: linear-gradient(135deg, #1a237e 0%, #0d47a1 100%); color: white; padding: 60px 0; text-align: center; }
.upload-section { background: white; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); padding: 40px; text-align: center; margin: 30px 0; }
.upload-area { border: 2px dashed #e91e63; border-radius: 10px; padding: 40px 20px; margin: 20px 0; min-height: 200px; cursor: pointer; }
.file-preview { display: flex; flex-direction: column; align-items: center; padding: 20px; }
.file-icon { font-size: 48px; margin-bottom: 10px; color: #e91e63; }
.file-name { font-weight: bold; font-size: 1.2rem; color: #1a237e; margin-bottom: 5px; }
.file-size { color: #666; font-size: 0.9rem; }
.upload-status { margin-top: 15px; padding: 10px 15px; background: #e8f5e9; color: #2e7d32; border-radius: 5px; border-left: 4px solid #4CAF50; text-align: left; font-weight: 500; }
.btn { background: #e91e63; color: white; border: none; padding: 12px 30px; font-size: 1.1rem; border-radius: 5px; cursor: pointer; font-weight: 600; }
.btn:hover { background: #d81b60; }
.btn:disabled { background: #bdbdbd; cursor: not-allowed; }
.payment-container { background: white; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); padding: 30px; text-align: center; margin: 30px 0; border: 2px solid #4CAF50; display: none; }
.payment-container.hidden { display: none; }
.payment-container:not(.hidden) { display: block; }
.popup { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); display: flex; align-items: center; justify-content: center; z-index: 1000; opacity: 0; visibility: hidden; transition: all 0.3s; }
.popup.active { opacity: 1; visibility: visible; }
.popup-content { background: white; border-radius: 10px; width: 90%; max-width: 500px; padding: 30px; position: relative; }
.popup-buttons { display: flex; justify-content: space-between; margin-top: 25px; }
.popup button { padding: 10px 20px; border: none; border-radius: 5px; cursor: pointer; font-weight: 600; flex: 1; margin: 0 5px; }
.btn-agree { background: #4CAF50; color: white; }
.btn-disagree { background: #f44336; color: white; }
.hidden { display: none; }
.drag-over { background-color: #e3f2fd; border-color: #2196F3; }
.file-uploaded { border-color: #4CAF50; background-color: #e8f5e9; }
.small-text { color: #666; font-size: 0.9rem; margin-top: 10px; }