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(max-width:860px){.login-page{grid-template-columns:1fr}.login-brand{border-right:0;border-bottom:1px solid var(--divider);padding:32px 22px 26px;gap:14px}.login-brand ul{display:none}.login-panel{padding:26px 22px 40px}}.login-card{display:flex;flex-direction:column;gap:10px;width:min(360px,100%);padding:28px;border:1px solid var(--divider);border-radius:14px;background:var(--surface);box-shadow:var(--shadow)}.login-card h2{margin:10px 0 0;font-size:19px}.login-card p{margin:0 0 8px;font-size:13.5px;color:var(--muted)}.login-card a,.login-card button{display:flex;align-items:center;justify-content:center;gap:8px;padding:11px 14px;border:1px solid var(--divider);border-radius:var(--radius-sm);background:var(--surface-muted);color:var(--text);font-size:14px;font-weight:600;cursor:pointer;text-decoration:none}.login-card a:hover,.login-card button:hover{border-color:var(--accent);color:var(--accent)}.login-error{font-size:12.5px;color:var(--warning)}.login-divider{margin-top:8px;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);text-align:center}.chip.deep{border-color:var(--accent);color:var(--accent-ink)}.chip.deep.selected{background:var(--accent-action);color:#fff}.sources-page{padding:clamp(20px,4vw,40px);display:grid;gap:20px;align-content:start;overflow-y:auto}.sources-page>header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.sources-page h1{margin:0 0 6px;font-size:clamp(20px,2.4vw,26px);letter-spacing:-.01em}.sources-page>header p{margin:0;max-width:62ch;font-size:13px;line-height:1.55;color:var(--muted)}.source-cards{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}@media 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solid var(--divider)}.source-card-audience{font-size:11px;color:var(--faint)}.source-card footer>div{display:flex;flex-wrap:wrap;gap:8px}.source-card footer button{min-height:32px;padding:0 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);font-size:12.5px}.source-card footer button:hover{border-color:var(--accent);color:var(--accent)}.source-card footer button.primary-button{background:var(--accent-action);border-color:transparent;color:#fff;font-weight:600}.source-card footer button.primary-button:hover{background:var(--accent-action-hover);border-color:transparent;color:#fff}.sources-note{margin:0;font-size:12px;color:var(--faint)}.profile-block{position:relative}.profile-row{width:100%;text-align:left;cursor:pointer}.profile-chevron{flex:0 0 auto;color:var(--faint);transform:rotate(-90deg)}.account-menu{position:absolute;left:8px;right:8px;bottom:calc(100% + 6px);z-index:60;display:grid;gap:2px;padding:6px;border:1px solid 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var(--divider);font-size:13px;color:var(--text)}.reader-attachments li>span{flex:1;min-width:0;overflow-wrap:anywhere}.reader-attachments li>button{flex:0 0 auto;display:inline-flex;align-items:center;gap:5px;height:28px;padding:0 10px;border:0;border-radius:999px;background:var(--accent-soft);color:var(--accent-ink);font-size:11px;font-weight:600;cursor:pointer}.reader-attachments li>button:hover{background:var(--accent);color:#fff}.reader-attachments li small{color:var(--muted);font-size:11px}.reader-dialog>footer{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;padding:12px 18px;border-top:1px solid var(--border)}.reader-dialog>footer button{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-size:13px;font-weight:600;cursor:pointer}.reader-dialog>footer 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var(--divider);border-radius:var(--radius-md);background:var(--surface-raised);box-shadow:var(--shadow)}.assign-menu button{padding:7px 9px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--text);font-size:12px;text-align:left;cursor:pointer}.assign-menu button:hover{background:var(--surface-muted)}.assign-menu span{padding:7px 9px;font-size:11px;color:var(--muted)}.project-row .row-action{width:30px;min-width:30px;opacity:.65}.project-row .row-action:focus-visible,.project-row:hover .row-action{opacity:1}.thread{display:grid;gap:14px;margin-bottom:22px;padding-bottom:18px;border-bottom:1px solid var(--divider)}.thread-turn{display:grid;gap:5px}.thread-turn>span{font-size:10px;letter-spacing:.09em;text-transform:uppercase;font-weight:700;color:var(--faint)}.thread-turn.user>span{color:var(--accent-ink)}.thread-turn .safe-markdown{font-size:14px;line-height:1.62;color:var(--muted)}.thread-turn .safe-markdown p{font-size:14px}.thread-turn.user 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.chip.selected:hover{background:var(--accent);color:#fff}.source-chips .chip.off{border-style:dashed;color:var(--muted)}.source-chips .chip.off:hover{border-color:var(--accent);color:var(--accent-ink)}.chips-divider{width:1px;height:18px;background:var(--divider);margin:0 3px}.boot-screen{min-height:100dvh;display:grid;place-content:center;justify-items:center;gap:10px;background:var(--bg);color:var(--muted)}.boot-screen span{font-size:18px;font-weight:650;color:var(--text)}.boot-screen p{font-size:13px}.letter-frame{width:100%;border:0;display:block;background:transparent;color-scheme:normal}.reader-images{display:flex;align-items:center;gap:8px;margin-bottom:10px;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-muted);font-size:12px;color:var(--muted)}.reader-images span{flex:1}.reader-images button{height:26px;padding:0 10px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:12px;font-weight:600;cursor:pointer}.reader-images button:hover{border-color:var(--accent);color:var(--accent-ink)}.attach-button{width:38px;height:38px;display:grid;place-items:center;border-radius:var(--radius-sm);color:var(--muted);cursor:pointer}.attach-button:hover{background:var(--surface-muted);color:var(--text)}.attach-button.busy{opacity:.6;cursor:progress}.attach-button:focus-within{box-shadow:var(--focus)}.composer-attachments{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:8px 10px 0}.attached-file{display:inline-flex;align-items:center;gap:5px;height:26px;padding:0 6px 0 9px;border:1px solid var(--border);border-radius:999px;background:var(--surface);font-size:12px;color:var(--text);max-width:260px}.attached-file>button{display:grid;place-items:center;width:18px;height:18px;border-radius:999px;color:var(--muted);cursor:pointer}.attached-file>button:hover{background:var(--surface-muted);color:var(--error)}.attached-note{font-size:11px;color:var(--muted)}.attached-note.error{color:var(--error)}.model-choice{display:inline-flex;align-items:center;gap:var(--space-1);padding:0 var(--space-2);height:26px;border:1px solid var(--border);border-radius:999px;background:var(--surface-raised);color:var(--muted);font-size:12px}.model-choice select{border:0;background:transparent;color:var(--text);font:inherit;max-width:170px;cursor:pointer;outline:none}.model-choice select:focus-visible{box-shadow:var(--focus);border-radius:var(--radius-sm)}.model-choice-label{color:var(--faint)}@media (max-width:640px){.model-choice-label{display:none}.model-choice select{max-width:120px}}