:root{--bg:#0f172a;--bg-soft:#111827;--panel:rgba(15,23,42,.82);--panel-2:rgba(17,24,39,.92);--text:#e5e7eb;--muted:#94a3b8;--line:rgba(148,163,184,.15);--accent:#22c55e;--accent-soft:rgba(34,197,94,.16);--danger:#ef4444}*{box-sizing:border-box}#__next,body,html{height:100%}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:radial-gradient(circle at top,#16203b 0,#0b1120 45%,#030712 100%);color:var(--text)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh}.sidebar{background:rgba(2,6,23,.82);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-right:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:16px}.brand{display:flex;align-items:center;gap:12px;padding:10px 12px;background:var(--panel);border:1px solid var(--line);border-radius:18px}.brand-badge{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#22c55e,#0ea5e9);display:grid;place-items:center;font-weight:700;color:#fff}.primary-btn,.secondary-btn,.sidebar button{border:0;border-radius:14px;padding:12px 16px;cursor:pointer;transition:.2s ease}.primary-btn{background:linear-gradient(135deg,#22c55e,#0ea5e9);color:#fff;font-weight:700}.secondary-btn{background:var(--panel);color:var(--text);border:1px solid var(--line)}.primary-btn:hover,.secondary-btn:hover,.sidebar button:hover{transform:translateY(-1px)}.main-panel{display:grid;grid-template-rows:auto 1fr auto;min-height:100vh}.topbar{padding:18px 24px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:rgba(2,6,23,.4);position:-webkit-sticky;position:sticky;top:0;z-index:10}.chat-scroll{padding:28px;overflow:auto}.message-list{max-width:980px;margin:0 auto;display:flex;flex-direction:column;gap:18px}.message{border:1px solid var(--line);background:var(--panel-2);border-radius:24px;padding:18px;box-shadow:0 10px 35px rgba(0,0,0,.18)}.message.user{background:rgba(14,116,144,.22)}.message .role{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:10px}.composer-wrap{padding:20px 24px 28px;border-top:1px solid var(--line);background:rgba(2,6,23,.55);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.composer{max-width:980px;margin:0 auto;border:1px solid var(--line);border-radius:26px;background:var(--panel-2);padding:16px}.auth-card input,.auth-card select,.composer textarea{width:100%;border:1px solid var(--line);background:rgba(15,23,42,.75);color:var(--text);border-radius:16px;padding:14px 16px;outline:none}.composer textarea{min-height:86px;resize:vertical}.composer-footer{display:flex;justify-content:space-between;align-items:center;margin-top:12px;gap:12px;flex-wrap:wrap}.pill{border:1px solid var(--line);padding:8px 12px;border-radius:999px;color:var(--muted);background:rgba(30,41,59,.6)}.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(480px,100%);background:rgba(2,6,23,.78);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:0 20px 60px rgba(0,0,0,.35)}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:16px}.grid-2,.stats-grid{display:grid;gap:16px}.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:16px}.stat-card,.table-card{background:rgba(2,6,23,.75);border:1px solid var(--line);border-radius:22px;padding:18px}.table-card table{width:100%;border-collapse:collapse}.table-card td,.table-card th{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left}.markdown p{margin:0 0 12px;line-height:1.7}.markdown ol,.markdown ul{padding-left:22px}.citation{margin-top:10px;padding:10px 12px;border-radius:14px;background:rgba(15,23,42,.7);border:1px solid var(--line)}.file-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:var(--accent-soft);color:#bbf7d0;margin:6px 8px 0 0}.error{color:#fecaca}.success{color:#bbf7d0}.small{font-size:13px;color:var(--muted)}@media (max-width:980px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.grid-2,.stats-grid{grid-template-columns:1fr}}