:root{--bg:#120d12;--panel:#1b131feb;--panel-strong:#1d1522;--text:#f4edf5;--muted:#bfaec3;--line:#ffffff14;--accent:#c13a73;--accent-soft:#c13a732e;--shadow:0 24px 80px #00000059;color:var(--text);background:radial-gradient(circle at 0 0,#c13a7329,#0000 28%),radial-gradient(circle at 100% 100%,#532b7a38,#0000 26%),linear-gradient(135deg,#110d13,#16101b 58%,#120d12);font-family:IBM Plex Sans,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-height:100vh;margin:0}button,select,textarea{font:inherit}.auth-shell,.shell{min-height:100vh}.auth-shell{place-items:center;padding:24px;display:grid}.auth-card,.sidebar,.main-pane,.bubble,.composer{border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.auth-card{border-radius:28px;width:min(560px,100%);padding:32px}.eyebrow,.section-label,.brand p,.nav-item span,.workspace-header p,.search-block p{color:var(--muted)}.primary-button,.ghost-button,.nav-item{border:1px solid var(--line);color:var(--text);cursor:pointer;background:0 0;border-radius:16px}.primary-button{background:linear-gradient(#c13a73eb,#841e49eb);padding:12px 16px}.ghost-button,.nav-item{padding:12px 14px}.shell{grid-template-columns:300px minmax(0,1fr);gap:16px;padding:16px;display:grid}.sidebar{border-radius:28px;flex-direction:column;gap:12px;padding:16px;display:flex}.brand{align-items:center;gap:12px;padding-bottom:8px;display:flex}.brand-mark{background:var(--accent-soft);color:#ffd6e6;border-radius:14px;place-items:center;width:44px;height:44px;font-weight:700;display:grid}.brand h1,.workspace-header h2{margin:0}.sidebar-section{flex-direction:column;gap:10px;display:flex}.nav-item{text-align:left;flex-direction:column;gap:6px;display:flex}.nav-item.active{background:var(--accent-soft);border-color:#c13a738c}.main-pane{border-radius:28px;grid-template-rows:auto 1fr auto;gap:16px;padding:20px;display:grid}.timeline{flex-direction:column;gap:14px;padding-right:6px;display:flex;overflow:auto}.bubble{border-radius:24px;padding:16px 18px}.bubble.user{background:#462235d1}.bubble header{justify-content:space-between;gap:12px;margin-bottom:8px;display:flex}.search-block{border-top:1px solid var(--line);flex-direction:column;gap:6px;margin-top:12px;padding-top:12px;display:flex}.search-block a{color:#ffc1d9}.composer{border-radius:24px;flex-direction:column;gap:12px;padding:12px;display:flex}.composer textarea{resize:vertical;width:100%;min-height:120px;color:var(--text);background:0 0;border:none;outline:none}.composer-bar{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.composer select{background:var(--panel-strong);color:var(--text);border:1px solid var(--line);border-radius:14px;padding:10px 12px}.search-toggle{align-items:center;gap:8px;display:inline-flex}@media (width<=960px){.shell{grid-template-columns:1fr}.sidebar{order:2}}