.chat-workspace{height:100dvh;min-height:0;overflow:hidden}.chat-app-shell{height:calc(100dvh - 78px);min-height:0}.chat-sidebar{height:100%;overflow:hidden}.chat-stage{height:100%;min-height:0;max-width:1220px;padding:28px clamp(24px,5vw,76px) 18px}.chat-stage-head{flex:0 0 auto;padding-bottom:17px;border-bottom:1px solid rgba(22,119,255,.1)}.chat-stage-head h1{font-size:clamp(28px,3.2vw,45px)}.chat-focus-bar{display:flex;align-items:center;gap:9px;flex:0 0 auto;padding:12px 0 0;color:#6888a6;font-size:11px}.chat-focus-bar .focus-node{display:flex;align-items:center;gap:6px;padding:7px 9px;border:1px solid rgba(22,119,255,.12);border-radius:999px;background:rgba(255,255,255,.63);box-shadow:inset 0 1px rgba(255,255,255,.8)}.chat-focus-bar i{width:6px;height:6px;border-radius:50%;background:#30c590;box-shadow:0 0 0 4px rgba(48,197,144,.1)}.chat-focus-bar span:last-child{margin-left:auto;color:#8aa5be}.conversation{min-height:0;flex:1 1 0;overflow-y:auto;overscroll-behavior:contain;padding:28px 2px 22px}.conversation::-webkit-scrollbar,.thread-list::-webkit-scrollbar{width:5px}.conversation::-webkit-scrollbar-thumb,.thread-list::-webkit-scrollbar-thumb{border-radius:999px;background:rgba(44,123,201,.22)}.message-row{max-width:900px;width:100%;margin:0 auto}.message-bubble{max-width:min(76%,720px);font-size:14px}.composer{position:relative;z-index:3;flex:0 0 auto;max-width:980px;padding:11px 12px;border-color:rgba(255,255,255,.96);box-shadow:0 13px 32px rgba(25,83,142,.16),inset 0 1px #fff}.composer:focus-within{box-shadow:0 16px 38px rgba(25,83,142,.22),0 0 0 4px rgba(22,119,255,.08),inset 0 1px #fff}.composer textarea{min-height:47px}.composer-note{flex:0 0 auto;margin:9px auto 0}.chat-empty{padding:30px 0}.chat-empty h2{font-size:clamp(28px,3vw,42px)}.attach-button{position:relative}.attach-button:after{content:"Context";position:absolute;top:-29px;left:-3px;opacity:0;pointer-events:none;padding:4px 6px;border-radius:6px;background:#173e69;color:#fff;font-size:9px;transition:opacity .15s var(--ease)}.attach-button:hover:after{opacity:1}@media(max-width:800px){.chat-workspace{height:100dvh;padding-top:67px}.chat-app-shell{height:calc(100dvh - 67px)}.chat-stage{height:100%;min-height:0;padding:20px 15px 12px}.chat-stage-head{padding-bottom:12px}.chat-stage-head h1{font-size:28px;line-height:1.06}.chat-focus-bar{padding-top:9px;gap:6px;overflow:hidden;white-space:nowrap}.chat-focus-bar .focus-node{padding:6px 8px}.chat-focus-bar span:last-child{display:none}.conversation{padding:18px 0 14px}.message-bubble{max-width:86%;font-size:13px}.composer{padding:8px;border-radius:18px}.composer textarea{min-height:42px;padding:9px 2px}.composer-note{font-size:10px}.chat-empty{padding:12px 0}.chat-empty h2{font-size:30px}.suggestion-grid{margin-top:22px}.suggestion-grid button{min-height:54px}.attach-button:after{display:none}}