:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ink:#20201d;--muted:#6f6c64;--line:#e4e0d7;--paper:#f7f5ef;--panel:#fff;--soft:#eeece4;--accent:#245c9c}*{box-sizing:border-box}body{color:var(--ink);background:var(--paper);margin:0;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}button,textarea{font:inherit}a{color:inherit;text-decoration:none}.login{place-items:center;min-height:100vh;padding:24px;display:grid}.login section{border:1px solid var(--line);background:var(--panel);border-radius:10px;width:min(520px,100%);padding:30px}.login h1{margin:0 0 12px;font-size:42px}.login p{color:var(--muted);line-height:1.55}.login button,.new-button{color:#fff;background:var(--ink);cursor:pointer;border:0;border-radius:7px;min-height:40px;padding:0 14px;font-weight:700}.clerk-mount{justify-content:center;margin-top:18px;display:flex}.app-shell{grid-template-columns:260px minmax(0,1fr) 320px;min-height:100vh;display:grid}.sidebar,.bench{border-right:1px solid var(--line);background:#fbfaf7}.sidebar{flex-direction:column;gap:16px;padding:18px;display:flex}.brand-row{align-items:center;gap:10px;min-height:42px;display:flex}.mark{border:1px solid var(--line);background:#fff;border-radius:7px;place-items:center;width:30px;height:30px;font-weight:800;display:grid}.brand-logo{border-radius:8px;width:30px;height:30px;display:block}.session-list{gap:6px;display:grid;overflow:auto}.session-list button{min-height:38px;color:var(--muted);text-align:left;cursor:pointer;background:0 0;border:0;border-radius:7px;padding:0 10px}.session-list button.active,.session-list button:hover{color:var(--ink);background:var(--soft)}.session-list span{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.user-box{border-top:1px solid var(--line);margin-top:auto;padding-top:14px}.user-box span,.eyebrow,.message span,.status-grid span{color:var(--muted);text-transform:uppercase;font-size:12px;font-weight:700}.user-box strong{margin-top:4px;font-size:13px;display:block}.workspace{grid-template-rows:auto minmax(0,1fr);min-width:0;display:grid}.workspace-header{border-bottom:1px solid var(--line);background:var(--panel);justify-content:space-between;align-items:center;gap:18px;padding:22px 28px;display:flex}.workspace-header h1{margin:4px 0 0;font-size:26px}.workspace-header a{border:1px solid var(--line);color:var(--accent);border-radius:7px;padding:9px 12px;font-size:14px}.chat-panel{grid-template-rows:minmax(0,1fr) auto;min-height:0;display:grid}.messages{align-content:start;gap:16px;padding:28px;display:grid;overflow:auto}.empty-state{border:1px dashed var(--line);background:#ffffff8c;border-radius:10px;max-width:680px;padding:24px}.empty-state h2{margin:0 0 8px;font-size:28px}.empty-state p,.bench p,.message p{color:var(--muted);line-height:1.58}.message{border:1px solid var(--line);background:var(--panel);border-radius:10px;max-width:820px;padding:16px 18px}.message.user{background:#f0f4f8;margin-left:auto}.message p{white-space:pre-wrap;margin:8px 0 0}.composer{border:1px solid var(--line);background:var(--panel);border-radius:12px;margin:18px 28px 22px;transition:border-color .16s,box-shadow .16s;box-shadow:0 1px 2px #00000008}.composer:focus-within{border-color:#c9d4e2;box-shadow:0 0 0 3px #245c9c1f}.composer-field{padding:14px 16px 6px;position:relative}.composer-input{min-height:26px;max-height:200px;color:var(--ink);caret-color:var(--accent);outline:none;line-height:1.55;overflow-y:auto}.composer-p{margin:0}.composer-placeholder{pointer-events:none;color:var(--muted);line-height:1.55;position:absolute;top:14px;left:16px}.composer-actions{justify-content:space-between;align-items:center;gap:12px;padding:6px 12px 12px;display:flex}.composer-hint{color:var(--muted);font-size:12px}.composer-send{color:#fff;background:var(--ink);cursor:pointer;border:0;border-radius:8px;min-height:36px;padding:0 16px;font-weight:700}.composer-send:disabled{cursor:not-allowed;opacity:.45}.user-box{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:10px;margin-top:auto;padding-top:14px;display:flex}.user-box .user-meta{min-width:0}.user-box .user-meta strong{text-overflow:ellipsis;white-space:nowrap;max-width:150px;overflow:hidden}.bench{border-right:0;border-left:1px solid var(--line);padding:24px}.bench h2{margin:0 0 10px;font-size:24px}.status-grid{gap:10px;margin:22px 0;display:grid}.status-grid div,.note{border:1px solid var(--line);background:var(--panel);border-radius:9px;padding:14px}.status-grid strong{margin-top:5px;display:block}.note strong{margin-bottom:8px;display:block}@media (width<=1020px){.app-shell{grid-template-columns:220px minmax(0,1fr)}.bench{display:none}}@media (width<=720px){.app-shell{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--line)}.session-list{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.composer{grid-template-columns:1fr}}