:root{--bg: #f6f8fb;--panel: #ffffff;--panel-soft: #f0f5f8;--ink: #17202a;--muted: #667382;--line: #dce4ea;--blue: #246bfe;--green: #0f8a63;--amber: #9a5a00;--shadow: 0 18px 50px rgba(24, 35, 51, .08);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg)}button,select,textarea{font:inherit}button{cursor:pointer}.appShell{min-height:100vh;display:grid;grid-template-columns:300px minmax(420px,1fr) 360px;gap:16px;padding:16px}.loginShell{min-height:100vh;display:grid;place-items:center;padding:18px;background:linear-gradient(120deg,rgba(36,107,254,.08),transparent 42%),linear-gradient(300deg,rgba(15,138,99,.1),transparent 46%),var(--bg)}.loginPanel{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:24px;display:grid;gap:24px}.loginPanel.compact{width:min(320px,100%)}.loginTitle{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:start}.loginTitle svg{color:var(--blue);margin-top:2px}.loginTitle h2{margin:0;font-size:26px;line-height:1.1}.loginTitle p{margin:6px 0 0;color:var(--muted);font-size:14px;line-height:1.5}.loginForm{display:grid;gap:14px}.loginForm label{display:grid;gap:7px;color:var(--muted);font-size:12px;font-weight:700}.loginForm input{width:100%;border:1px solid var(--line);border-radius:8px;padding:12px;color:var(--ink);outline:none;font:inherit;font-size:14px;font-weight:500;background:#fff}.loginForm input:focus{border-color:#8fb0de;box-shadow:0 0 0 3px #246bfe1f}.loginForm button{border:0;border-radius:8px;min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:8px;color:#fff;background:var(--blue);padding:0 14px;font-weight:750}.loginForm button:disabled{background:#a7b2bf;cursor:not-allowed}.loginError{margin:0;color:#b3261e;background:#fff0ed;border:1px solid #ffc6bd;border-radius:8px;padding:9px 10px;font-size:13px;line-height:1.4}.leftRail,.chatPane,.evidencePane{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}.leftRail{padding:18px;display:flex;flex-direction:column;gap:22px;overflow-y:auto}.brandBlock{display:flex;align-items:center;gap:12px}.brandMark{width:42px;height:42px;border-radius:8px;display:grid;place-items:center;color:#fff;background:#174ea6}.brandBlock h1{margin:0;font-size:22px;line-height:1.05}.brandBlock span,.kbSummary span,.kbItem span,.matchItem span,.doctorCard small,.doctorCard span{color:var(--muted);font-size:12px;line-height:1.35}.kbList,.matchList{display:grid;gap:10px}.personalNotesPanel,.kbDetails{display:grid;gap:12px}.personalNotesPanel{min-height:0}.kbDetails{border:1px solid var(--line);border-radius:8px;background:#fbfcfd;padding:0}.kbSummary{display:grid;grid-template-columns:24px 1fr 18px;gap:10px;align-items:start;padding:11px;cursor:pointer;list-style:none}.kbSummary::-webkit-details-marker{display:none}.kbSummary svg{color:var(--green);margin-top:2px}.kbSummary h2{margin:0;font-size:18px;line-height:1.15}.kbChevron{justify-self:end;transition:transform .16s ease}.kbDetails[open] .kbChevron{transform:rotate(180deg)}.kbIntro,.kbItem p{margin:0;color:var(--muted);font-size:12px;line-height:1.45}.kbDetails .kbIntro,.kbDetails .kbList{margin:0 11px 11px}.kbItem{display:grid;gap:6px;padding:11px;border:1px solid var(--line);border-radius:8px;background:#fbfcfd}.kbItem strong{font-size:12px;line-height:1.25;overflow-wrap:anywhere}.chatPane{min-height:calc(100vh - 32px);display:grid;grid-template-rows:auto 1fr auto;overflow:hidden}.chatHeader{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line)}.systemLabel{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-size:12px;font-weight:650}.settingsMenu{position:relative}.settingsButton,.settingsLogout{min-height:34px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 12px;font-weight:750}.settingsButton{color:#174ea6;background:#eef5ff;border:1px solid #bdd2f2;white-space:nowrap}.settingsButton[aria-expanded=true]{border-color:#8fb0de;box-shadow:0 0 0 3px #246bfe1a}.settingsPopover{position:absolute;top:calc(100% + 8px);right:0;z-index:20;width:min(330px,calc(100vw - 32px));display:grid;gap:12px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:var(--shadow)}.settingsLogout{border:1px solid #bdd2f2;color:#174ea6;background:#eef5ff;min-height:38px}.chatHeader h2{margin:4px 0 0;font-size:24px;line-height:1.1}.modelPicker,.notesEditor{display:grid;gap:7px;min-width:0}.modelPicker>span,.notesEditor>span{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-size:12px;font-weight:750}.modelPicker svg,.notesEditor svg{color:var(--green)}.modelPicker select,.notesEditor textarea{width:100%;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);outline:none}.modelPicker select{min-height:38px;padding:0 10px}.notesEditor textarea{min-height:180px;max-height:340px;resize:vertical;padding:10px}.settingsPopover .modelPicker select{min-height:40px}.modelPicker select:focus,.notesEditor textarea:focus{border-color:#8fb0de;box-shadow:0 0 0 3px #246bfe1f}.modelPicker small,.notesEditor small{color:var(--muted);font-size:11px;line-height:1.35}.messageList{min-height:0;overflow-y:auto;padding:18px;display:grid;align-content:start;gap:14px}.message{display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px;max-width:860px}.message.user{justify-self:end;grid-template-columns:minmax(0,1fr) 34px}.message.user .messageIcon{order:2;background:#174ea6}.messageIcon{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;background:var(--green);color:#fff;font-size:13px;font-weight:750}.messageBody{border:1px solid var(--line);background:#fff;border-radius:8px;padding:13px 14px}.message.user .messageBody{background:#174ea6;color:#fff;border-color:#174ea6}.message.pending .messageBody{color:var(--muted)}.messageBody p{margin:0;font-size:14px;line-height:1.55}.messageBody p+p{margin-top:8px}.bulletLine{padding-left:16px;position:relative}.bulletLine:before{content:"";width:5px;height:5px;border-radius:999px;background:currentColor;position:absolute;left:2px;top:.68em}.doctorGrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:8px;margin-top:12px}.doctorCard{color:inherit;text-decoration:none;display:grid;gap:4px;border:1px solid var(--line);border-radius:8px;padding:10px;background:#f9fbfd}.doctorCard strong,.doctorCard span,.doctorCard small{overflow-wrap:anywhere}.referenceRow{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}.referenceRow span{border:1px solid #bdd2f2;color:#174ea6;background:#eef5ff;border-radius:999px;padding:5px 8px;font-size:11px;font-weight:650}.composer{display:grid;grid-template-columns:1fr 44px;gap:10px;padding:14px;border-top:1px solid var(--line);background:#fbfcfd}.composer textarea{resize:none;min-height:48px;max-height:120px;border:1px solid var(--line);border-radius:8px;padding:12px;color:var(--ink);outline:none}.composer textarea:focus{border-color:#8fb0de;box-shadow:0 0 0 3px #246bfe1f}.composer button{border:0;border-radius:8px;color:#fff;background:var(--blue);display:grid;place-items:center;min-width:44px}.composer button:disabled{background:#a7b2bf;cursor:not-allowed}.evidencePane{padding:16px;overflow-y:auto}.paneHeader{display:flex;align-items:center;gap:8px;margin-bottom:14px}.paneHeader h2{margin:0;font-size:18px}.matchItem{border:1px solid var(--line);border-radius:8px;padding:10px;margin:0;background:#fff}.matchItem figcaption{display:flex;justify-content:space-between;gap:8px;margin-bottom:8px}.matchItem strong{font-size:12px;overflow-wrap:anywhere}.matchItem blockquote,.emptyState p{margin:0;color:var(--muted);font-size:12px;line-height:1.45}.matchItem blockquote{padding-left:10px;border-left:3px solid #bdd2f2}.emptyState{min-height:220px;display:grid;place-items:center;align-content:center;gap:8px;color:var(--muted);text-align:center;border:1px dashed var(--line);border-radius:8px}@media(min-width:1181px){.appShell{height:100vh;min-height:0;align-items:stretch;overflow:hidden}.leftRail,.chatPane,.evidencePane{height:calc(100vh - 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