.mpai{--mpai-canvas:#fafaf7;--mpai-paper:#fff;--mpai-tint:#f4f4ee;--mpai-navy:#0a1f2e;--mpai-body:#1f2937;--mpai-muted:#4b5563;--mpai-border:#e5e5de;--mpai-green:#22c55e;max-width:1080px;color:var(--mpai-body);grid-template-columns:250px minmax(0,1fr);gap:24px;min-height:calc(100vh - 140px);margin:0 auto;padding:24px 16px 40px;display:grid}.mpai:not(:has(.mpai-rail)){grid-template-columns:minmax(0,1fr);max-width:820px}.mpai-rail{flex-direction:column;gap:10px;display:flex}.mpai-new{border:1px solid var(--mpai-border);background:var(--mpai-paper);color:var(--mpai-navy);cursor:pointer;border-radius:10px;align-items:center;gap:6px;padding:8px 12px;font-size:13px;font-weight:600;display:flex}.mpai-new:hover{background:var(--mpai-tint)}.mpai-rail-list{flex-direction:column;gap:2px;display:flex;overflow-y:auto}.mpai-rail-item{border-radius:8px;align-items:center;display:flex}.mpai-rail-item.is-active,.mpai-rail-item:hover{background:var(--mpai-tint)}.mpai-rail-open{text-align:left;cursor:pointer;min-width:0;color:var(--mpai-body);white-space:nowrap;text-overflow:ellipsis;background:0 0;border:0;flex:1;padding:7px 10px;font-size:12.5px;overflow:hidden}.mpai-rail-del{cursor:pointer;color:var(--mpai-muted);opacity:0;background:0 0;border:0;border-radius:6px;padding:6px}.mpai-rail-item:hover .mpai-rail-del{opacity:1}.mpai-rail-del:hover{color:#b91c1c}.mpai-main{flex-direction:column;min-width:0;display:flex}.mpai-empty{text-align:center;margin:auto 0;padding:48px 8px 24px}.mpai-empty-badge{background:var(--mpai-navy);color:#fff;border-radius:999px;align-items:center;gap:6px;padding:5px 12px;font-size:12.5px;font-weight:600;display:inline-flex}.mpai-empty h1{color:var(--mpai-navy);letter-spacing:-.01em;margin:18px 0 10px;font-size:clamp(26px,4vw,34px);font-weight:650;line-height:1.15}.mpai-empty p{max-width:560px;color:var(--mpai-muted);margin:0 auto;font-size:14.5px}.mpai-examples{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:22px;display:flex}.mpai-examples button{border:1px solid var(--mpai-border);background:var(--mpai-paper);color:var(--mpai-body);cursor:pointer;border-radius:999px;padding:8px 14px;font-size:13px}.mpai-examples button:hover{border-color:var(--mpai-navy);color:var(--mpai-navy)}.mpai-thread{flex-direction:column;flex:1;gap:14px;padding:8px 0 16px;display:flex}.mpai-msg{display:flex}.mpai-user{justify-content:flex-end}.mpai-bubble{background:var(--mpai-navy);color:#fff;white-space:pre-wrap;border-radius:14px 14px 3px;max-width:78%;padding:10px 14px;font-size:14px}.mpai-card{background:var(--mpai-paper);border:1px solid var(--mpai-border);border-radius:14px;flex:1;min-width:0;max-width:100%;padding:14px 16px}.mpai-steps{flex-direction:column;gap:7px;padding:2px 0;display:flex}.mpai-step{color:var(--mpai-muted);align-items:center;gap:8px;font-size:13px;display:flex}.mpai-tick{color:var(--mpai-green);text-align:center;width:13px;font-size:12px}.mpai-spin{color:var(--mpai-navy);animation:.9s linear infinite mpai-rot}@keyframes mpai-rot{to{transform:rotate(360deg)}}.mpai-answer{font-size:14px;line-height:1.62}.mpai-answer h3{color:var(--mpai-navy);margin:14px 0 6px;font-size:16px}.mpai-answer h4{color:var(--mpai-navy);margin:12px 0 4px;font-size:14px}.mpai-answer p{margin:7px 0}.mpai-answer ul,.mpai-answer ol{margin:6px 0 6px 20px}.mpai-answer li{margin:3px 0}.mpai-answer blockquote{border-left:3px solid var(--mpai-green);background:var(--mpai-tint);border-radius:0 8px 8px 0;margin:8px 0;padding:8px 12px;font-style:italic}.mpai-answer code{font-family:var(--font-mono,ui-monospace, monospace);background:var(--mpai-tint);border-radius:5px;padding:1px 5px;font-size:12.5px}.mpai-answer hr{border:0;border-top:1px solid var(--mpai-border);margin:12px 0}.mpai-tablewrap{margin:10px 0;overflow-x:auto}.mpai-answer table{border-collapse:collapse;width:100%;font-size:13px;line-height:1.5}.mpai-answer th,.mpai-answer td{border-bottom:1px solid var(--mpai-border);text-align:left;vertical-align:top;padding:6px 10px}.mpai-answer th{background:var(--mpai-tint);color:var(--mpai-navy);letter-spacing:.03em;white-space:nowrap;font-size:11.5px;font-weight:700}.mpai-answer tbody tr:last-child td{border-bottom:0}.mpai-answer .mpai-num{text-align:right;font-family:var(--font-mono,ui-monospace, monospace);white-space:nowrap;font-size:12.5px}.mpai-cite-mark{color:var(--mpai-green);font-size:.75em;font-weight:700}.mpai-verifying{color:var(--mpai-muted);align-items:center;gap:7px;margin-top:10px;font-size:12.5px;display:flex}.mpai-trust{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.mpai-trust-ok,.mpai-trust-fresh{border-radius:999px;align-items:center;gap:5px;padding:4px 9px;font-size:11.5px;font-weight:600;display:inline-flex}.mpai-trust-ok{color:#15803d;background:#f0fdf4;border:1px solid #bbf7d0}.mpai-trust-fresh{background:var(--mpai-tint);border:1px solid var(--mpai-border);color:var(--mpai-muted)}.mpai-trust-fresh.is-stale{color:#92400e;background:#fffbeb;border-color:#fde68a}.mpai-followups{border-top:1px dashed var(--mpai-border);margin-top:12px;padding-top:10px}.mpai-followups-head{letter-spacing:.08em;text-transform:uppercase;color:var(--mpai-muted);margin-bottom:7px;font-size:11px;font-weight:700}.mpai-followup-list{flex-direction:column;align-items:flex-start;gap:6px;display:flex}.mpai-followup-list button{text-align:left;border:1px solid var(--mpai-border);background:var(--mpai-canvas);max-width:100%;color:var(--mpai-body);cursor:pointer;border-radius:999px;padding:7px 12px;font-size:12.5px}.mpai-followup-list button:hover:not(:disabled){border-color:var(--mpai-navy);color:var(--mpai-navy)}.mpai-followup-list button:disabled{opacity:.5;cursor:default}.mpai-sources{border-top:1px dashed var(--mpai-border);margin-top:12px;padding-top:10px}.mpai-sources-head{letter-spacing:.08em;text-transform:uppercase;color:var(--mpai-muted);margin-bottom:6px;font-size:11px;font-weight:700}.mpai-source{margin:4px 0}.mpai-source-chip{border:1px solid var(--mpai-border);background:var(--mpai-canvas);cursor:pointer;max-width:100%;color:var(--mpai-body);border-radius:8px;align-items:center;gap:8px;padding:5px 10px;font-size:12.5px;display:inline-flex}.mpai-source-chip:hover{border-color:var(--mpai-navy)}.mpai-source-n{color:var(--mpai-green);font-weight:700}.mpai-source-title{white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.mpai-source-meta{color:var(--mpai-muted);white-space:nowrap}.mpai-source-quote{border-left:3px solid var(--mpai-green);background:var(--mpai-tint);border-radius:0 8px 8px 0;margin:6px 0 2px 6px;padding:8px 12px;font-size:13px;font-style:italic}.mpai-source-verified{color:#15803d;align-items:center;gap:5px;margin-top:7px;font-size:11.5px;font-style:normal;font-weight:600;display:flex}.mpai-source-link{color:var(--mpai-navy);margin-top:6px;font-size:12.5px;font-style:normal;font-weight:600;text-decoration:none;display:block}.mpai-source-link:hover{text-decoration:underline}.mpai-error{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca;border-radius:10px;padding:10px 14px;font-size:13.5px}.mpai-gate{text-align:center;border:1px solid var(--mpai-border);background:var(--mpai-paper);border-radius:14px;flex-direction:column;align-items:center;gap:6px;margin-top:10px;padding:20px;display:flex}.mpai-gate b{color:var(--mpai-navy);font-size:15px}.mpai-gate span{color:var(--mpai-muted);font-size:13.5px}.mpai-gate-actions{gap:10px;margin-top:8px;display:flex}.mpai-gate-primary{background:var(--mpai-navy);color:#fff;border-radius:10px;padding:9px 18px;font-size:13.5px;font-weight:600;text-decoration:none}.mpai-gate-secondary{border:1px solid var(--mpai-border);color:var(--mpai-navy);border-radius:10px;padding:9px 18px;font-size:13.5px;font-weight:600;text-decoration:none}.mpai-composer{border:1px solid var(--mpai-border);background:var(--mpai-paper);border-radius:14px;align-items:flex-end;gap:8px;margin-top:10px;padding:10px 10px 10px 14px;display:flex}.mpai-composer:focus-within{border-color:var(--mpai-navy)}.mpai-composer textarea{resize:none;font:inherit;color:var(--mpai-body);background:0 0;border:0;outline:none;flex:1;max-height:140px;font-size:14px}.mpai-composer button{background:var(--mpai-navy);color:#fff;cursor:pointer;border:0;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.mpai-composer button:disabled{opacity:.45;cursor:default}.mpai-foot{margin-top:14px}.mpai-usage{color:var(--mpai-muted);align-items:center;gap:10px;margin-top:10px;font-size:12px;display:flex}.mpai-usage-bar{background:var(--mpai-tint);border-radius:999px;flex:0 0 120px;height:5px;overflow:hidden}.mpai-usage-bar span{background:var(--mpai-green);height:100%;display:block}.mpai-lock{border:1px dashed var(--mpai-border);background:var(--mpai-tint);color:var(--mpai-muted);border-radius:14px;align-items:center;gap:8px;margin-top:10px;padding:12px 14px;font-size:13px;display:flex}.mpai-lock a{color:var(--mpai-navy);font-weight:600}.mpai-empty-note{color:var(--mpai-muted);margin-top:16px;font-size:13px}.mpai-empty-note a{color:var(--mpai-navy);font-weight:600}@media (max-width:900px){.mpai{grid-template-columns:minmax(0,1fr)}.mpai-rail{display:none}}