:root{color-scheme:light}*{box-sizing:border-box}html{min-height:100%}body{margin:0;min-width:320px;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-font-smoothing:antialiased}#root{min-height:100vh}.page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.container{background:#fff;padding:40px 30px;border-radius:20px;box-shadow:0 20px 60px #0000004d;max-width:400px;width:100%}h1{color:#333;font-size:28px;margin:0 0 10px;text-align:center}.subtitle{color:#666;font-size:14px;text-align:center;margin-bottom:30px}.info-box{background:#f8f9fa;padding:15px;border-radius:10px;margin-bottom:20px;font-size:14px;color:#555;line-height:1.6}.info-box strong{color:#333;display:block;margin-bottom:5px}button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:18px 30px;font-size:18px;font-weight:600;border-radius:12px;cursor:pointer;width:100%;transition:all .3s ease;box-shadow:0 4px 15px #667eea66}button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea99}button:active{transform:translateY(0)}button:disabled{background:#ccc;cursor:not-allowed;box-shadow:none}#status{margin-top:25px;padding:15px;border-radius:10px;text-align:center;font-weight:600;min-height:60px;display:flex;align-items:center;justify-content:center;flex-direction:column}#status.success{background:#d4edda;color:#155724;border:2px solid #c3e6cb}#status.loading{background:#fff3cd;color:#856404;border:2px solid #ffeaa7}#status.error{background:#f8d7da;color:#721c24;border:2px solid #f5c6cb}#status .stats{font-size:13px;margin-top:8px;opacity:.9}.history{margin-top:20px;padding-top:20px;border-top:1px solid #eee}.history-title{font-size:14px;color:#666;margin-bottom:10px;font-weight:600}.history-item{font-size:12px;color:#888;padding:5px 0}.warning{font-size:12px;color:#dc3545;margin-top:25px;padding:12px;background:#fff5f5;border-radius:8px;border-left:4px solid #dc3545;line-height:1.6}.warning strong{display:block;margin-bottom:5px}