:root{--bg:#fafaf8;--surface:#fff;--border:#e8e5e0;--text:#1a1814;--text-muted:#6b6760;--text-subtle:#9a9690;--accent:#a78bfa;--danger:#e5616a;--radius-md:10px;--radius-lg:14px;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 16px #0000000f;--sidebar-w:240px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:Geist,system-ui,-apple-system,sans-serif}a{color:inherit}.app-shell{grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh;display:grid}.app-main{padding:32px 40px;overflow-y:auto}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;padding:24px 16px;display:flex}.sidebar__brand{padding:8px 8px 24px}.sidebar__logo{width:auto;height:28px;display:block}.sidebar__nav{flex-direction:column;flex:1;gap:2px;display:flex}.sidebar__link{border-radius:var(--radius-md);color:var(--text-muted);align-items:center;gap:12px;padding:10px 12px;font-size:14px;font-weight:500;text-decoration:none;transition:background .12s,color .12s;display:flex}.sidebar__link:hover{color:var(--text);background:#00000008}.sidebar__link--active{background:color-mix(in srgb, var(--accent) 12%, transparent);color:var(--accent)}.sidebar__footer{border-top:1px solid var(--border);margin-top:16px;padding:16px 12px 0}.sidebar__client-name{color:var(--text-muted);font-size:13px}.page{max-width:720px}.page__header{margin-bottom:32px}.page__header h1{letter-spacing:-.02em;margin:0 0 4px;font-family:Fraunces,Georgia,serif;font-size:32px;font-weight:400}.page__subtitle{color:var(--text-muted);margin:0;font-size:14px}.empty{color:var(--text-muted);font-size:14px}.thread-list{margin:0;padding:0;list-style:none}.thread-list__item{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);cursor:pointer;margin-bottom:8px;padding:16px 18px;transition:border-color .12s,box-shadow .12s}.thread-list__item:hover{border-color:var(--accent);box-shadow:var(--shadow-sm)}.thread-list__name{margin-bottom:2px;font-weight:500}.thread-list__when{color:var(--text-subtle);font-size:12px}.centered-screen{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:32px;height:32px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.error-card{text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);max-width:420px;box-shadow:var(--shadow-md);padding:32px 28px}.error-card h1{margin:0 0 12px;font-family:Fraunces,Georgia,serif;font-size:22px;font-weight:400}.error-card p{color:var(--text-muted);margin:0;font-size:14px;line-height:1.5}@media (width<=720px){.app-shell{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--border);flex-direction:row;align-items:center;padding:12px 16px}.sidebar__brand{margin-right:auto;padding:0}.sidebar__nav{flex-direction:row;gap:4px}.sidebar__link{padding:8px 10px;font-size:13px}.sidebar__link span,.sidebar__footer{display:none}.app-main{padding:24px 20px}}