:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{width:100%;min-height:100vh}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}}.checkout-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:20px;background:linear-gradient(135deg,#667eea,#764ba2)}.checkout-card{background:#fff;border-radius:12px;padding:40px;max-width:600px;width:100%;box-shadow:0 10px 40px #0000001a}.checkout-card h1{color:#333;margin-bottom:30px;font-size:2rem;text-align:center}.token-section{margin-bottom:30px}.token-section h2,.amount-section h2,.qr-section h2{color:#555;font-size:1.2rem;margin-bottom:15px}.amount-section{margin-bottom:30px}.amount-display{background:#f5f5f5;border:1px solid #ddd;border-radius:8px;padding:20px;font-size:1.5rem;font-weight:600;color:#667eea;text-align:center}.qr-section{margin-bottom:30px;text-align:center}.qr-code-container{display:flex;justify-content:center;align-items:center;padding:20px;background:#f5f5f5;border:1px solid #ddd;border-radius:8px;margin-bottom:15px}.qr-code-container img{max-width:100%;height:auto}.qr-instruction{color:#666;font-size:.9rem;margin:0}.loading{text-align:center;padding:40px;color:#667eea;font-size:1.1rem}.token-section h2{color:#555;font-size:1.2rem;margin-bottom:15px}.token-display{background:#f5f5f5;border:1px solid #ddd;border-radius:8px;padding:20px;word-break:break-all}.token-display code{color:#667eea;font-family:Courier New,monospace;font-size:1rem;line-height:1.6}.error-message{background:#fee;color:#c33;border:1px solid #fcc;border-radius:8px;padding:20px;margin-bottom:30px;text-align:center}.return-button{width:100%;padding:15px 30px;font-size:1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:8px;cursor:pointer;transition:transform .2s,box-shadow .2s}.return-button:hover{transform:translateY(-2px);box-shadow:0 5px 20px #667eea66}.return-button:active{transform:translateY(0)}@media(prefers-color-scheme:dark){.checkout-card{background:#1a1a1a}.checkout-card h1{color:#fff}.token-section h2{color:#ccc}.token-display{background:#2a2a2a;border-color:#444}.token-display code{color:#8b9ef7}}@media(max-width:768px){.checkout-card{padding:30px 20px}.checkout-card h1{font-size:1.5rem}.token-section h2{font-size:1rem}}