:root{color-scheme:dark;--bg:#0b0d14;--sidebar:#10131d;--panel:#0d1018;--line:#262b3a;--text:#f4f5fb;--muted:#9ba3b8;--purple:#a79aff;--mint:#81e8d2}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,textarea{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;display:grid;grid-template-columns:260px minmax(0,1fr)}.sidebar{display:flex;flex-direction:column;gap:18px;background:var(--sidebar);border-right:1px solid var(--line);padding:24px 14px;min-height:100vh}.logo{display:flex;align-items:center;gap:8px;color:var(--text);text-decoration:none;font-weight:850;letter-spacing:1px;font-size:20px;padding:0 5px}.logo-icon{display:grid;place-items:center;width:32px;height:32px;background:#292542;border-radius:11px;color:var(--purple);font-size:23px}.logo-ai{color:var(--purple);margin-left:-7px}.new-chat{border:1px solid #48415f;background:#211e32;color:#e9e5ff;text-align:left;padding:12px;border-radius:12px}.side-label{margin-top:8px;padding:0 8px;color:#747d94;font-size:10px;font-weight:800;letter-spacing:1.8px}.chat-history{display:flex;flex-direction:column;gap:5px;overflow:auto;max-height:calc(100vh - 250px)}.history-row{display:flex;align-items:center;gap:4px;border-radius:9px}.history-row.selected{background:#232137}.history-title{min-width:0;flex:1 1;text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:0;background:transparent;color:#b9bfd0;padding:10px 9px;font-size:12px}.history-row.selected .history-title{color:#f2efff}.delete-chat{border:0;background:transparent;color:#858da4;font-size:18px;padding:5px 8px}.delete-chat:hover{color:#ff9baf}.history-empty{padding:0 8px;color:#747d94;font-size:12px}.sidebar-bottom{margin-top:auto;padding:12px 5px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}.status-dot{display:inline-block;width:7px;height:7px;background:var(--mint);border-radius:50%;margin-right:8px}.main-panel{min-width:0;display:flex;flex-direction:column;min-height:100vh}.topbar{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 30px;border-bottom:1px solid #ffffff0d;font-size:14px;font-weight:700}.beta{margin-left:8px;padding:4px 6px;border:1px solid #655b96;border-radius:6px;color:#c4baff;font-size:9px;letter-spacing:1px}.topbar-note{font-size:11px;color:var(--muted);font-weight:400}.chat-area{width:min(900px,100%);margin:0 auto;padding:34px 24px 18px;display:flex;flex-direction:column;flex:1 1}.welcome{text-align:center;margin:8px auto 30px;max-width:560px}.nexus-mark{display:grid;place-items:center;width:54px;height:54px;margin:0 auto 18px;border:1px solid #8c7cf966;border-radius:18px;color:var(--purple);background:radial-gradient(circle,#a79aff20,transparent);font-size:34px}.eyebrow{color:var(--mint);font-size:10px;letter-spacing:2px;font-weight:800}.welcome h1{font-size:clamp(35px,5vw,54px);line-height:1.08;letter-spacing:-2px;margin:14px 0}.welcome h1 span{color:var(--purple)}.subtitle{color:var(--muted);font-size:14px;line-height:1.7}.suggestions{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:20px}.suggestions button{background:#141824;border:1px solid var(--line);color:#c8cddd;border-radius:12px;padding:10px 12px;font-size:12px}.suggestions button:hover{border-color:#7166a8}.messages{display:flex;flex-direction:column;gap:18px;margin-bottom:22px}.message{display:flex;align-items:flex-start;gap:12px;padding:15px;border:1px solid #ffffff0c;background:#121621;border-radius:16px;min-width:0}.message.user{background:#191729;border-color:#8e80d322}.message-avatar{flex-shrink:0;display:grid;place-items:center;width:31px;height:31px;border-radius:10px;background:#2b2744;color:#c8c0ff;font-size:10px;font-weight:800}.message.user .message-avatar{background:#243b3c;color:var(--mint)}.message-content{min-width:0;flex:1 1}.message-name{font-size:12px;font-weight:800;margin:1px 0 8px}.message-body{color:#c8cddd;font-size:13px;line-height:1.7;overflow-wrap:anywhere}.md-line{white-space:pre-wrap}.md-spacer{height:7px}.md-heading{font-size:15px;font-weight:800;color:#f0edff;margin:7px 0}.md-list-item{padding-left:8px}.inline-code{background:#252338;border:1px solid #38334f;color:#d8ceff;padding:2px 5px;border-radius:5px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.92em}.code-block{margin:12px 0;border:1px solid #34364a;border-radius:12px;overflow:hidden;background:#090b11}.code-header{display:flex;align-items:center;justify-content:space-between;background:#171a27;border-bottom:1px solid #34364a;padding:8px 12px;color:#9ea6bc;font-size:11px}.code-header button{border:1px solid #41435a;background:#222438;color:#e5e1ff;border-radius:7px;padding:5px 9px;font-size:11px}.code-block pre{margin:0;padding:14px;overflow:auto;max-width:100%;color:#c6f1e8;font:12px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre}.composer{position:-webkit-sticky;position:sticky;bottom:10px;border:1px solid #3a3d54;border-radius:17px;background:#141824;padding:12px 14px;box-shadow:0 12px 35px #0005}.composer textarea{display:block;width:100%;resize:vertical;min-height:52px;border:0;outline:0;background:transparent;color:var(--text);font-size:14px;line-height:1.6}.composer textarea::placeholder{color:#747d94}.composer-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#858da4;font-size:10px}.composer-footer button{width:34px;height:34px;border:0;border-radius:11px;background:var(--purple);color:#161326;font-size:23px;font-weight:800}.composer-footer button:disabled{opacity:.4;cursor:not-allowed}.disclaimer{text-align:center;color:#737c92;font-size:10px;margin:14px 0 0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:760px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.topbar{padding:0 18px}.topbar-note{display:none}.chat-area{padding:25px 13px 15px}.welcome{margin-top:10px}.welcome h1{letter-spacing:-1px}.message{padding:12px}.suggestions button{font-size:11px}}.code-actions{display:flex;align-items:center;gap:7px}.preview-overlay{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:20px;background:#05060bd9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.preview-window{display:flex;flex-direction:column;width:min(1100px,100%);height:min(800px,90vh);overflow:hidden;border:1px solid #393d54;border-radius:16px;background:#0d1018;box-shadow:0 25px 90px #0009}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line)}.preview-toolbar button{border:1px solid #41435a;background:#222438;color:var(--text);border-radius:8px;padding:7px 10px}.preview-warning{margin:0;padding:8px 16px;color:#d7cfa2;background:#272316;font-size:11px}.preview-window iframe{flex:1 1;width:100%;border:0;background:white}@media(max-width:760px){.preview-overlay{padding:8px}.preview-window{height:94vh}}.composer-tools{display:flex;align-items:center;gap:10px;min-width:0}.attach-button{display:inline-flex;align-items:center;gap:4px;padding:7px 9px;border:1px solid #41435a;border-radius:8px;color:#d8d2ff;background:#222438;font-size:11px;white-space:nowrap;cursor:pointer}.attach-button input{display:none}.image-attachment{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px;padding:7px 9px;border:1px solid #4a4568;border-radius:8px;color:#d8d2ff;font-size:12px}.image-attachment button{border:0;background:transparent;color:#ffb7c4;font-size:11px}.code-actions button{white-space:nowrap}@media(max-width:520px){.composer-tools{align-items:flex-start;flex-direction:column;gap:5px}.composer-footer{align-items:flex-end}}.topbar-controls{display:flex;align-items:center;gap:12px}.account-button{border:1px solid #514a77;background:#211e32;color:#e9e5ff;border-radius:10px;padding:8px 11px;font-size:11px;white-space:nowrap}.account-overlay{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:16px;background:#05060bdc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.account-window{width:min(460px,100%);max-height:90vh;overflow:auto;border:1px solid #393d54;border-radius:16px;background:#111520;padding:18px;box-shadow:0 25px 90px #0009}.account-header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--line)}.account-header button{border:1px solid #41435a;background:#222438;color:var(--text);border-radius:8px;padding:7px 10px}.account-form{display:flex;flex-direction:column;gap:9px;padding-top:14px}.account-label{display:block;color:#cbd0df;font-size:12px;margin-top:8px}.account-form input,.account-memory{width:100%;border:1px solid #34394d;background:#0b0e16;color:var(--text);border-radius:9px;padding:11px;font:inherit;font-size:13px}.account-actions button,.account-primary{border:1px solid #635995;background:#2b2642;color:#f2efff;border-radius:9px;padding:10px 12px;font-size:12px}.account-actions button:disabled,.account-primary:disabled{opacity:.45}.account-switch{border:0;background:transparent;color:#c5baff;padding:8px;font-size:12px}.account-email,.account-hint{font-size:12px;color:var(--muted);line-height:1.6}.account-error,.research-notice{color:#ffb8c5;font-size:12px;line-height:1.5}.account-notice{color:var(--mint);font-size:12px}.credit-card{display:flex;flex-direction:column;gap:6px;margin:14px 0;padding:13px;border:1px solid #3d395b;border-radius:11px;background:#1a192a}.credit-card span{color:#c9c5e6;font-size:12px}.credit-card strong{font-size:23px;color:var(--mint)}.credit-card small{color:var(--muted);font-size:10px;line-height:1.5}.account-memory{resize:vertical;margin-top:8px;line-height:1.5}.account-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.account-actions .account-secondary{background:transparent;border-color:#41435a;color:#c4cada}.research-bar{margin:0 0 12px;padding:12px;border:1px solid #2d3144;border-radius:14px;background:#10141f}.research-heading{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:8px;font-size:11px}.research-heading span{color:var(--muted);font-size:10px}.research-fields{display:flex;gap:8px}.research-fields input,.research-question{width:100%;min-width:0;border:1px solid #34394d;background:#0b0e16;color:var(--text);border-radius:8px;padding:10px;font:inherit;font-size:12px}.research-fields button{border:1px solid #635995;background:#2b2642;color:#f2efff;border-radius:8px;padding:9px 11px;font-size:11px;white-space:nowrap}.research-fields button:disabled{opacity:.45;cursor:not-allowed}.research-question{margin-top:7px}.research-notice{margin:8px 0 0}@media(max-width:520px){.topbar-controls{gap:6px}.account-button{padding:7px;font-size:10px}.research-heading{align-items:flex-start}.research-fields,.research-heading{flex-direction:column}.research-fields button{align-self:flex-end}.account-window{padding:14px}}