:root{--bg:#0b1020;--card:rgba(255,255,255,.09);--line:rgba(255,255,255,.16);--text:#f6f7fb;--muted:#aab2c8;--accent:#8b5cf6;--accent2:#06b6d4;--danger:#ff6b6b}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at 15% 10%,rgba(139,92,246,.35),transparent 30%),radial-gradient(circle at 85% 20%,rgba(6,182,212,.25),transparent 34%),linear-gradient(135deg,#090d1a,#10172a 55%,#111827);color:var(--text)}button,input,select,textarea{font:inherit}button{border:0;border-radius:16px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;padding:13px 18px;font-weight:800;cursor:pointer;box-shadow:0 16px 35px rgba(6,182,212,.18);transition:.2s}button:hover{transform:translateY(-1px)}button.secondary,.logout{background:rgba(255,255,255,.08);box-shadow:none;border:1px solid var(--line)}button:disabled{opacity:.75;cursor:wait}a{color:inherit;text-decoration:none}.glass{background:var(--card);border:1px solid var(--line);box-shadow:0 24px 80px rgba(0,0,0,.28);backdrop-filter:blur(18px)}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(430px,100%);padding:34px;border-radius:30px}.brand-badge{width:58px;height:58px;border-radius:20px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));font-weight:900;margin-bottom:18px}.login-card h1,.topbar h1,.result-head h2{margin:0 0 10px}.login-card p,.eyebrow,.item-meta,.status,.empty-timeline,.timeline .content-note{color:var(--muted)}.login-form{display:grid;gap:16px;margin-top:18px}.login-actions{display:flex;justify-content:flex-end;padding-top:8px}.login-actions button{min-width:140px}label{display:grid;gap:8px;color:#dce2f3;font-weight:700}input,select,textarea{width:100%;border:1px solid var(--line);background:rgba(9,13,26,.68);color:var(--text);border-radius:16px;padding:13px 14px;outline:0}textarea{resize:vertical;min-height:140px}input:focus,select:focus,textarea:focus{border-color:rgba(6,182,212,.75);box-shadow:0 0 0 4px rgba(6,182,212,.12)}.alert{background:rgba(255,107,107,.16);border:1px solid rgba(255,107,107,.35);padding:12px;border-radius:16px;margin:12px 0}.topbar{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:26px max(18px,4vw)}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:12px;font-weight:900}.layout{display:grid;grid-template-columns:minmax(300px,420px) 1fr;gap:22px;padding:0 max(18px,4vw) 40px}.panel{border-radius:30px;padding:22px}.controls{display:grid;gap:18px;align-self:start}.segmented{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:rgba(0,0,0,.18);padding:7px;border-radius:20px}.segmented button{padding:11px;border-radius:15px;background:transparent;box-shadow:none;color:var(--muted)}.segmented button.active{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}.hidden{display:none!important}.workspace{display:flex;flex-direction:column;gap:18px;min-height:760px}.result-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.meter{font-size:13px;color:#d7fff9;background:rgba(6,182,212,.12);border:1px solid rgba(6,182,212,.28);padding:10px 12px;border-radius:999px;white-space:nowrap}.timeline{flex:1;min-height:360px;max-height:calc(100vh - 290px);overflow:auto;display:grid;align-content:start;gap:14px;padding-right:4px}.empty-timeline{padding:18px;border:1px dashed var(--line);border-radius:18px;background:rgba(255,255,255,.03)}.timeline-item{display:grid;gap:8px}.timeline-item.user{justify-items:end}.timeline-item.assistant{justify-items:start}.item-meta{font-size:12px;line-height:1.45}.timeline-card{width:min(100%,900px);border:1px solid var(--line);border-radius:22px;padding:14px 16px;background:rgba(0,0,0,.18)}.timeline-item.user .timeline-card{background:rgba(139,92,246,.14)}.timeline-item.assistant .timeline-card{background:rgba(6,182,212,.10)}.timeline-text{white-space:pre-wrap;word-break:break-word;line-height:1.55}.timeline-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:12px}.timeline-gallery img{width:100%;display:block;border-radius:18px;border:1px solid var(--line);background:#111827}.timeline-gallery a{display:block;color:#d7fff9;margin-top:8px;font-size:14px}.composer{display:grid;gap:16px;padding-top:18px;border-top:1px solid var(--line)}.composer textarea{min-height:130px}.actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;align-items:center}.actions #sendBtn{min-width:220px}.logout{padding:10px 14px;border-radius:14px;color:var(--muted)}@media(max-width:920px){.layout{grid-template-columns:1fr}.workspace{min-height:auto}.topbar{align-items:flex-start}.grid.two{grid-template-columns:1fr}.timeline{max-height:none}}@media(max-width:560px){.topbar{display:grid}.segmented{grid-template-columns:1fr}.panel,.login-card{border-radius:24px;padding:18px}.result-head{display:grid}.meter{white-space:normal}.actions{justify-content:stretch}.actions button,.login-actions button{width:100%}.timeline-card{width:100%}}