:root{--bg: #ffffff;--bg-card: #f9fafb;--text: #111827;--text-secondary: #6b7280;--border: #e5e7eb;--accent: #26a17b;--accent-hover: #1e8f6d;--success: #10b981;--error: #ef4444;--warning: #f59e0b}@media(prefers-color-scheme:dark){:root{--bg: #0f172a;--bg-card: #1e293b;--text: #f1f5f9;--text-secondary: #94a3b8;--border: #334155;--accent: #26a17b;--accent-hover: #34d399;--success: #34d399;--error: #f87171;--warning: #fbbf24}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;justify-content:center;align-items:flex-start;padding:2rem 1rem}#root{width:100%;max-width:440px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:2rem;box-shadow:0 4px 6px -1px #0000001a}.chain-badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.chain-badge.eth{background:#627eea20;color:#627eea}.chain-badge.tron{background:#ff060620;color:#ff0606}.amount-display{font-size:2rem;font-weight:700;text-align:center;margin:1rem 0;font-variant-numeric:tabular-nums}.amount-display .currency{font-size:1rem;color:var(--text-secondary);margin-left:.5rem}.address-box{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:.75rem;font-family:SF Mono,Fira Code,monospace;font-size:.8rem;word-break:break-all;text-align:center;color:var(--text-secondary);cursor:pointer;transition:border-color .2s}.address-box:hover{border-color:var(--accent)}.qr-container{display:flex;justify-content:center;margin:1.5rem 0;padding:1rem;background:#fff;border-radius:12px}.btn{display:block;width:100%;padding:.75rem 1.5rem;border:none;border-radius:10px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s;text-align:center;text-decoration:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}.btn-secondary:hover{background:var(--accent);color:#fff}.btn+.btn{margin-top:.5rem}.timer{text-align:center;font-size:.85rem;color:var(--text-secondary);margin-top:1rem}.timer.urgent{color:var(--warning);font-weight:600}.timer.expired{color:var(--error)}.status-container{text-align:center;padding:2rem 0}.status-icon{font-size:3rem;margin-bottom:1rem}.status-text{font-size:1.1rem;font-weight:600}.confirmations{font-size:.85rem;color:var(--text-secondary);margin-top:.5rem}.section-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text-secondary);margin-bottom:.5rem;font-weight:600}.divider{border:none;border-top:1px solid var(--border);margin:1.5rem 0}.loading{text-align:center;padding:4rem 0;color:var(--text-secondary)}.error-message{text-align:center;padding:4rem 0;color:var(--error)}.copied-toast{position:fixed;bottom:2rem;left:50%;transform:translate(-50%);background:var(--text);color:var(--bg);padding:.5rem 1.5rem;border-radius:8px;font-size:.85rem;animation:fadeInOut 2s ease-in-out}@keyframes fadeInOut{0%{opacity:0;transform:translate(-50%) translateY(10px)}15%{opacity:1;transform:translate(-50%) translateY(0)}85%{opacity:1;transform:translate(-50%) translateY(0)}to{opacity:0;transform:translate(-50%) translateY(-10px)}}.footer{text-align:center;margin-top:1.5rem;font-size:.75rem;color:var(--text-secondary)}.footer a{color:var(--accent);text-decoration:none}