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(width>=861px){.chat-header{padding:14px clamp(28px,4vw,64px)}.chat-title{max-width:min(100%,980px)}.workspace-main{justify-items:center}.conversation-column{justify-self:center;width:min(100%,1120px)}.messages{padding:28px 36px 18px}.message{grid-template-columns:minmax(0,1fr)}.message.user{justify-content:stretch}.assistant-response,.assistant-body{max-width:min(100%,760px)}.user-message-stack{max-width:min(100%,660px)}.user-bubble{max-width:min(100%,640px)}.composer-card{width:calc(100% - 72px);max-width:1048px;margin:0 auto 24px}}@media (width<=980px){.chat-app{grid-template-columns:280px minmax(0,1fr)}.auth-page{padding:18px}.auth-panel{padding:22px}.auth-code-row{align-items:stretch}.auth-code-row button{min-width:104px;padding:0 10px;font-size:13px}.parameter-row label{min-width:150px}}@media (width<=860px){html,body,#root{width:100%;max-width:100%;overflow-x:hidden}.chat-app{width:var(--app-viewport-width,100vw);max-width:var(--app-viewport-width,100vw);height:var(--app-viewport-height,100dvh);min-height:var(--app-viewport-height,100dvh);background:#fff;display:block;overflow-x:hidden}.project-sidebar{display:none}.mobile-home{width:var(--app-viewport-width,100vw);max-width:var(--app-viewport-width,100vw);height:var(--app-viewport-height,100dvh);min-height:var(--app-viewport-height,100dvh);padding:calc(14px + env(safe-area-inset-top)) 14px calc(14px + env(safe-area-inset-bottom));background:linear-gradient(#fff 0%,#f8fbff 58%,#eef6ff 100%);overflow-x:hidden}.mobile-screen-projects .mobile-home{grid-template-rows:auto minmax(0,1fr);gap:14px;display:grid}.mobile-screen-projects .chat-shell,.mobile-screen-chat .mobile-home{display:none}.mobile-screen-chat .chat-shell{height:var(--app-viewport-height,100dvh);min-height:var(--app-viewport-height,100dvh);display:grid}.mobile-home-header{justify-content:space-between;align-items:center;gap:12px;display:flex}.points-pill{border:1px solid var(--line);min-height:34px;color:var(--blue);background:#fff;border-radius:999px;gap:6px;padding:0 11px;font-weight:850}.mobile-project-list{min-height:0;padding-bottom:88px;overflow:auto}.mobile-fab{right:calc(18px + env(safe-area-inset-right));bottom:calc(18px + env(safe-area-inset-bottom));z-index:10;background:var(--brand-gradient);color:#fff;cursor:pointer;border:0;border-radius:50%;place-items:center;width:58px;height:58px;display:inline-grid;position:fixed;box-shadow:0 16px 34px #2563eb47}.mobile-project-list article{border-color:var(--line);background:#ffffffdb}.mobile-project-list article.active{border-color:#b9d5ff}.chat-shell{width:100%;max-width:var(--app-viewport-width,100vw);background:#fff;grid-template-rows:auto minmax(0,1fr);height:100%;overflow:hidden}.workspace-main{width:100%;max-width:var(--app-viewport-width,100vw);grid-template-columns:minmax(0,1fr);height:100%;min-height:0;display:grid;overflow:hidden}.conversation-column{width:100%;max-width:var(--app-viewport-width,100vw);grid-template-rows:minmax(0,1fr) auto;height:100%;min-height:0;overflow:hidden}.chat-header{padding:calc(10px + env(safe-area-inset-top)) 12px 10px;grid-template-columns:40px minmax(0,1fr) 40px;align-items:center;gap:8px;display:grid}.chat-title{text-align:center;min-width:0}.mobile-back-button{display:inline-grid}.chat-header h1{text-align:center;font-size:16px}.profile-menu,.profile-button{justify-self:end}.profile-popover{top:calc(58px + env(safe-area-inset-top));width:min(292px,100vw - 20px);position:fixed;right:10px}.messages{gap:10px;width:100%;max-width:100%;min-height:0;padding:10px 14px;overflow-x:hidden}.empty-chat-state{place-self:start stretch;gap:11px;padding:14px 18px 6px}.empty-chat-state .logo-mark{width:36px;height:36px}.empty-chat-state .logo-mark svg{width:26px;height:26px}.empty-chat-state h2{font-size:21px}.empty-chat-state p{max-width:100%;font-size:13.5px;line-height:1.62}.empty-chat-state div{gap:8px}.empty-chat-state button{text-align:left;max-width:100%;min-height:38px;padding:0 12px;font-size:14px;line-height:1.35}.message{grid-template-columns:minmax(0,1fr);gap:8px;width:100%}.message.user{justify-content:end}.user-bubble{max-width:min(82vw,320px);padding:10px 13px;font-size:15px;line-height:1.58}.user-message-stack{max-width:min(88vw,340px)}.assistant-response{gap:14px;width:100%;min-width:0}.assistant-body{gap:8px;width:100%}.assistant-heading{margin-top:14px;font-size:17px}.assistant-line{font-size:15px;line-height:1.86}.composer-card{width:100%;max-width:var(--app-viewport-width,100vw);min-width:0;padding:8px 12px calc(8px + env(safe-area-inset-bottom));border-bottom:0;border-left:0;border-right:0;border-radius:8px 8px 0 0;margin:0;overflow-x:hidden;box-shadow:0 -12px 30px #1e314814}.desktop-parameters{display:none}.mobile-parameter-chips{border-bottom:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;padding-bottom:6px;display:grid}.mobile-parameter-chips button{border:1px solid var(--line);background:var(--surface-soft);text-align:left;border-radius:8px;gap:2px;min-width:0;min-height:38px;padding:5px 8px;font-size:11px;display:grid}.mobile-parameter-chips strong{color:var(--text);text-overflow:ellipsis;white-space:nowrap;font-size:12px;line-height:1.25;overflow:hidden}.attachment-list{-webkit-overflow-scrolling:touch;flex-wrap:wrap;max-height:126px;padding:8px 0 6px;overflow:hidden auto}.attachment-card{background:#f8fafc;align-items:flex-start;width:min(100%,172px);min-width:0;min-height:98px;padding:12px 28px 12px 12px}.message-attachment-list{max-width:100%}.message-attachment-list .attachment-card{align-items:center;width:min(100%,310px);min-width:0;min-height:58px}.composer-card textarea{resize:none;min-width:0;min-height:44px;max-height:88px;padding:8px 2px;font-size:16px;line-height:1.45}.composer-actions{grid-template-columns:auto minmax(0,1fr) auto;align-items:start;gap:8px;width:100%;min-width:0;display:grid}.composer-tools{grid-column:1;gap:8px;min-width:0;display:flex}.attach-button{border-radius:50%;justify-content:center;width:40px;min-width:40px;height:40px;padding:0;font-size:13px}.attach-label{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.attach-button svg{width:18px;height:18px}.composer-submit-controls{grid-column:3;gap:7px;min-width:0}.send-button{border-radius:50%;justify-content:center;width:40px;min-width:40px;height:40px;padding:0;font-size:0}.send-button svg:last-child{display:block}.send-button:not(:disabled){background:#020617}.parameter-sheet{width:100%;height:min(88dvh,720px);max-height:none;padding:14px 14px calc(14px + env(safe-area-inset-bottom));overflow:hidden}.recharge-modal{width:100%;max-height:min(86dvh, var(--app-viewport-height,100dvh) - 28px);-webkit-overflow-scrolling:touch;overflow:auto}.recharge-options{grid-template-columns:1fr}.recharge-options button{min-height:112px}.parameter-sheet header,.parameter-sheet footer,.sheet-search,.popular-strip,.custom-industry-button{flex:none}.sheet-options{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;flex:auto;min-height:0;padding-bottom:8px;overflow:auto}.industry-group button,.custom-industry-button{white-space:normal;text-align:left}.option-grid{grid-template-columns:1fr}}