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spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media(max-width:820px){html,body,#root{height:auto;overflow:visible}.appShell{min-height:100vh;overflow:visible}.sidebar{position:sticky;top:0;z-index:30;width:100%;height:auto;max-height:180px;min-height:auto;border-right:0;border-bottom:1px solid var(--line);padding:16px}.conversation{margin-left:0;height:auto;min-height:100vh;overflow:visible}.topbar{position:sticky;inset:0 auto auto;height:var(--topbar-height)}.historyList{display:flex;flex-direction:row;overflow-x:auto;overflow-y:hidden;padding-bottom:4px;gap:10px}.historyItem{min-width:200px;flex-shrink:0}.newButton{margin-bottom:12px}.answerPane{height:auto;min-height:calc(100vh - var(--topbar-height));margin-top:0;overflow:visible}}@media(max-width:560px){.topbar{padding:0 16px;min-height:56px}.answerPane{padding:24px 16px 36px}.welcome{padding:24px 16px}.welcome h2{font-size:22px}.qualityProofGrid{grid-template-columns:1fr}.paymentPanelHeader{align-items:stretch;flex-direction:column}.paymentSegment{width:100%}.paymentSegment button{flex:1}.walletConnectGrid{grid-template-columns:1fr}}.modalOverlay{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;background:#0f172a66;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:20px}.modalContent{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);max-width:440px;width:100%;padding:32px;display:flex;flex-direction:column;align-items:center;text-align:center;animation:modalSlideUp .2s var(--ease)}@keyframes modalSlideUp{0%{transform:translateY(12px);opacity:0}to{transform:translateY(0);opacity:1}}.modalCloseButton{position:absolute;top:16px;right:16px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--muted);border-radius:999px;cursor:pointer;transition:all .15s var(--ease)}.modalCloseButton:hover{background:var(--panel-soft);color:var(--text)}.modalIcon{color:var(--brand);background:var(--brand-soft);padding:16px;border-radius:999px;margin-bottom:20px;width:60px;height:60px;display:flex;align-items:center;justify-content:center}.modalContent h2{font-size:20px;font-weight:700;color:#0f172a;margin:0 0 10px}.modalContent p{font-size:14px;line-height:1.5;color:var(--muted);margin:0 0 24px}.paymentDetailsGrid{width:100%;background:var(--panel-soft);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:24px;display:flex;flex-direction:column;gap:12px}.paymentDetailRow{display:flex;justify-content:space-between;align-items:center;gap:16px}.paymentDetailLabel{font-size:11px;font-weight:600;text-transform:uppercase;color:var(--muted);letter-spacing:.02em}.paymentDetailValue{font-size:13px;font-family:var(--font-code);color:#0f172a}.modalActions{width:100%}.modalPrimaryButton{width:100%;min-height:44px;display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;font-size:14px;font-weight:600;border-radius:var(--radius);cursor:pointer;transition:background .15s var(--ease)}.modalPrimaryButton:hover{background:var(--brand-hover)}.paymentDetailsTitle{font-size:11px;font-weight:750;text-transform:uppercase;color:var(--text);letter-spacing:.05em;margin-bottom:8px;align-self:flex-start}