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:root{--c-canvas:#fff;--c-rail:#faf9f7;--c-rail-2:#f3f1ee;--c-surface:#fff;--c-surface-2:#faf9f7;--c-line:#eceae5;--c-line-strong:#e0ddd6;--c-ink:#1c1b19;--c-ink-2:#57544e;--c-ink-3:#908c84;--c-ink-4:#b7b3aa;--accent:#4f46e5;--accent-soft:color-mix(in srgb, var(--accent) 12%, white);--accent-ink:color-mix(in srgb, var(--accent) 78%, black);--radius-sm:8px;--radius:12px;--radius-lg:18px;--radius-xl:24px;--shadow-sm:0 1px 2px #1c1b190d, 0 1px 1px #1c1b1908;--shadow-md:0 4px 16px -4px #1c1b191a, 0 2px 6px -2px #1c1b190f;--shadow-lg:0 18px 48px -12px #1c1b1938, 0 6px 16px -8px #1c1b191f;--ui:var(--font-ui), "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;--serif:var(--font-serif), "Newsreader", Georgia, serif;--rail-w:280px;--msg-gap:30px;--thread-pad:40px}[data-density=compact]{--msg-gap:20px;--thread-pad:28px;--rail-w:264px}[data-density=comfy]{--msg-gap:42px;--thread-pad:56px;--rail-w:296px}*{box-sizing:border-box}.sr-only{clip:rect(0, 0, 0, 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rise;display:flex}@keyframes rise{0%{transform:translateY(10px)}to{transform:none}}.msg-avatar{border-radius:8px;flex:none;place-items:center;width:30px;height:30px;font-size:13px;font-weight:700;display:grid}.msg-avatar.user{background:var(--c-ink);color:#fff;border-radius:99px}.msg-body{flex:1;min-width:0;padding-top:3px}.msg-author{letter-spacing:-.01em;align-items:center;gap:8px;margin-bottom:5px;font-size:13px;font-weight:700;display:flex}.msg-author .vtag{color:var(--c-ink-3);background:var(--c-surface-2);border:1px solid var(--c-line);white-space:nowrap;border-radius:99px;padding:1px 8px;font-size:11px;font-weight:500}.msg-text{color:var(--c-ink);font-size:15.5px;line-height:1.62}.msg-text p{margin:0 0 12px}.msg-text p:last-child{margin-bottom:0}.msg-text strong{font-weight:700}.msg-markdown{overflow-wrap:anywhere}.msg-markdown ul,.msg-markdown ol{margin:7px 0 13px;padding-left:1.45em}.msg-markdown li{padding-left:2px}.msg-markdown li+li{margin-top:3px}.msg-markdown 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table{border-collapse:collapse;width:max-content;max-width:100%;margin:10px 0 13px;font-size:13.5px;display:block;overflow-x:auto}.msg-markdown th,.msg-markdown td{border:1px solid var(--c-line);text-align:left;padding:6px 9px}.msg-markdown th{background:var(--c-surface-2);font-weight:700}.msg-body>.brief+.msg-markdown,.msg-body>.reveal-cta+.msg-markdown{margin-top:20px}.typing{gap:5px;padding:6px 2px;display:inline-flex}.typing i{background:var(--c-ink-4);border-radius:99px;width:7px;height:7px;animation:1.2s infinite blink}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.25;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}.brief{border:1px solid var(--c-line-strong);border-radius:var(--radius-lg);background:var(--c-surface);box-shadow:var(--shadow-md);margin-top:16px;overflow:hidden}.brief-head{border-bottom:1px solid var(--c-line);align-items:flex-start;gap:14px;padding:18px 22px 14px;display:flex;position:relative}.brief-accent{width:4px;position:absolute;top:0;bottom:0;left:0}.brief-kicker{letter-spacing:.14em;text-transform:uppercase;color:var(--c-ink-3);font-size:11px;font-weight:700}.brief-title{font-family:var(--serif);letter-spacing:-.01em;margin:4px 0 0;font-size:25px;font-weight:500;line-height:1.12}.brief-status{flex:none;margin-left:auto}.badge{letter-spacing:-.01em;white-space:nowrap;border-radius:99px;align-items:center;gap:6px;padding:4px 11px;font-size:11.5px;font-weight:700;display:inline-flex}.badge.draft{color:#9a6a16;background:#fff5e6;border:1px solid #f2dcb0}.badge.done{color:#2f7d56;background:#e9f6ef;border:1px solid #c5e6d3}.badge .dot{background:currentColor;border-radius:99px;width:6px;height:6px}.brief-meta{border-bottom:1px solid var(--c-line);grid-template-columns:repeat(3,1fr);display:grid}.brief-meta .cell{border-right:1px solid var(--c-line);padding:12px 22px}.brief-meta .cell:last-child{border-right:0}.brief-meta .ml{letter-spacing:.1em;text-transform:uppercase;color:var(--c-ink-4);font-size:10.5px;font-weight:700}.brief-meta .mv{color:var(--c-ink);margin-top:3px;font-size:13.5px;font-weight:600}.brief-attachments{border-bottom:1px solid var(--c-line);padding:14px 22px 16px}.brief-attachment-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.brief-attachment{border:1px solid var(--c-line);border-radius:var(--radius);background:var(--c-surface-2);min-width:0;color:var(--c-ink-2);align-items:center;gap:9px;padding:8px;text-decoration:none;transition:border-color .15s,background .15s;display:flex}.brief-attachment:hover{border-color:var(--c-ink-4);background:var(--c-surface);color:var(--c-ink)}.brief-attachment:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.brief-attachment-icon{background:var(--c-line);width:42px;height:42px;color:var(--c-ink-3);border-radius:8px;flex:none;place-items:center;display:grid}.brief-attachment-copy{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.brief-attachment-copy strong{color:var(--c-ink);text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.brief-attachment-copy small{color:var(--c-ink-4);font-size:10.5px}.brief-attachment>svg{color:var(--c-ink-4);flex:none}.brief-attachment-list>.attachment-thumbnail.is-briefing{aspect-ratio:4/3;width:100%}.attachment-thumbnail{border:1px solid var(--c-line-strong);background:var(--c-surface-2);color:var(--c-ink-3);box-shadow:var(--shadow-sm);border-radius:10px;flex:none;text-decoration:none;transition:border-color .15s,transform .15s,box-shadow 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var(--c-line-strong);background:var(--c-surface);width:23px;height:23px;color:var(--c-ink-2);box-shadow:var(--shadow-sm);border-radius:99px;place-items:center;padding:0;display:grid;position:absolute;top:-6px;right:-6px}.attachment-thumbnail-remove:disabled{opacity:.55}.composer-box{border:1px solid var(--c-line-strong);background:var(--c-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);align-items:flex-end;gap:10px;padding:8px 8px 8px 16px;transition:border-color .15s,box-shadow .15s;display:flex;position:relative}.composer-box.is-dragging-files{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft), var(--shadow-lg)}.composer-drop-state{z-index:3;border:2px dashed var(--accent);border-radius:inherit;background:color-mix(in srgb, var(--accent-soft) 86%, 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textarea::placeholder{color:var(--c-ink-4)}.send-btn{background:var(--c-ink);color:#fff;border:0;border-radius:11px;flex:none;place-items:center;width:38px;height:38px;transition:background .15s,opacity .15s,transform .1s;display:grid}.send-btn:disabled{background:var(--c-line-strong);color:var(--c-ink-4);cursor:default}.send-btn:not(:disabled):hover{background:#000}.send-btn:not(:disabled):active{transform:scale(.94)}.composer-error{color:#b03c2e;margin:7px 4px 0;font-size:12px}.composer-foot{color:var(--c-ink-4);white-space:nowrap;justify-content:center;align-items:center;gap:6px;margin-top:9px;font-size:11.5px;display:flex}.composer-foot .cf-brand{color:var(--c-ink-3);font-weight:600}.message-files{flex-wrap:wrap;gap:7px;margin-top:9px;display:flex}.message-files a{border:1px solid var(--c-line-strong);background:var(--c-surface-2);max-width:280px;color:var(--c-ink-2);text-overflow:ellipsis;white-space:nowrap;border-radius:9px;align-items:center;gap:6px;padding:7px 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var(--accent-soft)}.media-tile-preview{aspect-ratio:4/3;background:var(--c-surface-2);color:var(--c-ink-4);place-items:center;display:grid;position:relative;overflow:hidden}.media-tile-preview img{object-fit:cover}.media-tile-preview i{background:var(--c-surface);width:20px;height:20px;box-shadow:var(--shadow-sm);color:#0000;border-radius:50%;place-items:center;display:grid;position:absolute;top:7px;right:7px}.media-tile.selected .media-tile-preview i{background:var(--accent);color:#fff}.media-tile-copy{flex-direction:column;gap:2px;min-width:0;padding:9px 10px 10px;display:flex}.media-tile-copy strong{text-overflow:ellipsis;white-space:nowrap;font-size:11.5px;overflow:hidden}.media-tile-copy small{color:var(--c-ink-4);font-size:10px}.media-load-more{border:1px solid var(--c-line-strong);background:var(--c-surface);color:var(--c-ink-2);border-radius:9px;margin:16px auto 0;padding:7px 12px;font-size:12px;font-weight:650;display:block}.media-picker-error{padding:0 20px 10px;font-size:11.5px}.media-picker-foot{border-top:1px solid var(--c-line);background:var(--c-surface-2);align-items:center;gap:9px;padding:13px 18px;display:flex}.media-picker-foot>span{min-width:0;color:var(--c-ink-4);flex:1;font-size:11.5px}.media-picker-foot .btn:disabled{opacity:.45;cursor:default}.hist{flex:1;min-height:0;overflow-y:auto}.hist-inner{max-width:920px;margin:0 auto;padding:36px 40px 80px}.hist-head{margin-bottom:6px}.hist-head h1{font-family:var(--serif);letter-spacing:-.01em;margin:0;font-size:34px;font-weight:500}.hist-head p{color:var(--c-ink-2);max-width:56ch;margin:8px 0 0;font-size:14.5px;line-height:1.55}.hist-toolbar{align-items:center;gap:8px;margin:24px 0 18px;display:flex}.seg{background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:10px;gap:2px;padding:3px;display:flex}.seg button,.seg a{color:var(--c-ink-3);white-space:nowrap;background:0 0;border:0;border-radius:7px;padding:6px 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