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var(--line);box-shadow:var(--shadow-soft);background:#ffffffb3}.workspace-body{flex:1;min-height:0;padding:18px}.thread-root{height:100%;min-height:0}.thread-viewport{flex-direction:column;gap:14px;height:100%;min-height:0;padding:8px 10px 0;display:flex;overflow:auto}.empty-state{border:1px solid var(--line);max-width:680px;box-shadow:var(--shadow);background:linear-gradient(#ffffffdb,#faf6efe0);border-radius:28px;gap:14px;margin:24px auto 12px;padding:28px;display:grid;position:relative}.empty-state-orb{filter:blur(.2px);opacity:.8;background:radial-gradient(circle at 30% 30%,#fffffff2,#0000 32%),linear-gradient(135deg,#037ef3c7,#0257acb8);border-radius:999px;width:88px;height:88px;position:absolute;top:-24px;right:32px}.empty-state p{max-width:58ch;color:var(--muted);margin:0;line-height:1.65}.message-row{align-items:flex-start;gap:12px;width:100%;max-width:900px;margin:0 auto;animation:.22s 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12px}.thinking-block{background:#eef6ffe6;border:1px solid #037ef32e;border-radius:18px;margin-bottom:10px;padding:12px 12px 10px}.thinking-block summary{color:var(--accent-strong);letter-spacing:.08em;text-transform:uppercase;cursor:pointer;align-items:center;gap:8px;font-size:.8rem;font-weight:700;list-style:none;display:flex}.thinking-block summary::-webkit-details-marker{display:none}.thinking-block p{color:var(--muted);white-space:pre-wrap;margin:10px 0 0;line-height:1.6}.message-markdown{color:var(--text);font-size:.96rem;line-height:1.7}.message-markdown>:first-child{margin-top:0}.message-markdown>:last-child{margin-bottom:0}.message-markdown p,.message-markdown ul,.message-markdown ol,.message-markdown blockquote,.message-markdown pre,.message-markdown table{margin:.75rem 0}.message-markdown ul,.message-markdown ol{padding-left:1.25rem}.message-markdown blockquote{color:var(--muted);border-left:3px solid #037ef338;padding-left:1rem}.message-markdown code{font-family:var(--font-mono);font-size:.88em}.message-markdown :not(pre)>code{background:#037ef314;border-radius:8px;padding:.16rem .34rem}.message-markdown pre{color:#edf6f2;background:#101814;border-radius:18px;padding:14px 16px;overflow:auto}.message-markdown pre code{white-space:pre}.message-markdown table{border-collapse:collapse;width:100%;overflow:hidden}.message-markdown th,.message-markdown td{border:1px solid #0f17141f;padding:8px 10px}.composer-shell{gap:10px;width:100%;max-width:900px;margin:10px auto 20px;padding-bottom:6px;display:grid}.scroll-button{width:fit-content;color:var(--muted);border:1px solid var(--line);box-shadow:var(--shadow-soft);background:#ffffffb8;align-self:center}.composer-card{border:1px solid var(--line);box-shadow:var(--shadow);background:#ffffffd1;border-radius:28px;gap:12px;padding:14px;display:grid}.composer-input{resize:vertical;width:100%;min-height:104px;color:var(--text);background:#fafcfffa;border:1px solid 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var(--line)}.session-list{grid-auto-columns:minmax(240px,86%);grid-auto-flow:column;padding-bottom:4px;overflow-x:auto}.workspace-header,.composer-actions{flex-direction:column;align-items:stretch}.workspace-controls{justify-content:flex-start}.message-bubble{max-width:calc(100% - 54px)}}@media (width<=600px){.sidebar,.workspace-header,.workspace-body{padding-left:16px;padding-right:16px}.workspace-body{padding-top:14px}.composer-card{border-radius:22px}.message-row{gap:10px}.message-bubble{border-radius:18px;max-width:calc(100% - 44px);padding:12px 13px}}