*{margin:0;padding:0;box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Roboto','Oxygen','Ubuntu','Cantarell','Fira Sans','Droid Sans','Helvetica Neue',sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}#root{width:100%;height:100vh;display:flex;justify-content:center;align-items:center}.app-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:#f5f5f5;padding:20px}.card{width:320px;background:#ffffff;border-radius:12px;padding:30px 20px;text-align:center;box-shadow:0 2px 15px rgba(0,0,0,0.08)}.logo-img{width:80px;height:80px;border-radius:16px;margin:0 auto 15px;object-fit:cover;box-shadow:0 4px 12px rgba(0,0,0,0.1)}.title{font-size:24px;margin:5px 0;color:#2d3142;font-weight:600}.subtitle{font-size:14px;color:#9a9a9a;margin-bottom:20px}.divider{border:none;height:1px;background-color:#f0f0f0;margin:20px 0}.progress-container{width:100%;height:6px;background-color:#f0f0f0;border-radius:3px;margin-bottom:12px;overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,#e63946,#4ade80);border-radius:3px;width:0%;transition:width linear}.countdown-text{font-size:12px;color:#9a9a9a;margin-bottom:8px;text-align:center}.btn{width:100%;padding:16px 0;border-radius:10px;border:none;font-size:16px;cursor:pointer;margin-bottom:15px;transition:all 0.3s ease;font-weight:600;box-shadow:0 4px 12px rgba(0,0,0,0.08);position:relative;overflow:hidden}.btn:hover{opacity:0.95;transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,0.12)}.btn:active{transform:translateY(0);box-shadow:0 2px 8px rgba(0,0,0,0.08)}.primary-btn{background-color:#2d3142;color:#ffffff;box-shadow:0 4px 12px rgba(45,49,66,0.15)}.primary-btn:hover{box-shadow:0 6px 18px rgba(45,49,66,0.2)}.secondary-btn{background-color:#f8f8f8;color:#2d3142;border:1px solid #eeeeee;box-shadow:0 4px 12px rgba(0,0,0,0.05)}.secondary-btn:hover{box-shadow:0 6px 16px rgba(0,0,0,0.08)}.footer{font-size:12px;color:#9a9a9a;margin-top:30px;text-align:center;line-height:1.6}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px;vertical-align:middle}.green-dot{background-color:#4ade80}.blue-dot{background-color:#38bdf8}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,0.5);display:flex;justify-content:center;align-items:center;z-index:9999;backdrop-filter:blur(2px)}.modal-content{width:80%;max-width:300px;background-color:#ffffff;border-radius:12px;padding:24px 20px;box-shadow:0 4px 25px rgba(0,0,0,0.15)}.modal-title{font-size:18px;margin:0 0 18px 0;color:#2d3142;text-align:center;font-weight:600}.backup-list{margin-bottom:20px}.backup-item{padding:11px 10px;border:1px solid #f0f0f0;border-radius:8px;margin-bottom:9px;cursor:pointer;color:#1d3557;font-size:14px;transition:all 0.2s ease;word-break:break-all}.backup-item:hover{background-color:#f8f8f8;border-color:#e8e8e8}.close-btn{width:100%;padding:14px;background-color:#2d3142;color:#ffffff;border:none;border-radius:10px;cursor:pointer;font-size:15px;font-weight:600;transition:all 0.3s ease;box-shadow:0 4px 12px rgba(45,49,66,0.1)}.close-btn:hover{opacity:0.95;transform:translateY(-1px);box-shadow:0 6px 16px rgba(45,49,66,0.15)}