:root{--font-read:"Source Serif 4","Source Serif Pro","Georgia",serif;--paper-bg:#F4EEE3;--paper-ink:#1a1612;--paper-ink-2:#5A554E;--paper-line:rgba(26,22,18,0.10);--paper-edge:rgba(0,0,0,0.06);--paper-shadow:0 18px 60px -28px rgba(0,0,0,0.45),0 2px 12px -4px rgba(0,0,0,0.25);--hl-important:#F2C24A;--hl-term:#7EB87A;--hl-question:#6FA8DC;--hl-quote:#D78EB6;--hl-ai:#C9A87C;--chat-bg:var(--bg-3)}.theme-light{--paper-bg:#FBF9F7;--paper-ink:#11120F;--paper-ink-2:#45443F;--paper-line:rgba(17,18,15,0.10);--paper-edge:rgba(0,0,0,0.04)}.theme-sepia{--paper-bg:#F4EEE3;--paper-ink:#1a1612;--paper-ink-2:#5A554E;--paper-line:rgba(26,22,18,0.10);--paper-edge:rgba(0,0,0,0.06)}.theme-dark{--paper-bg:#1A1714;--paper-ink:#F0E9DE;--paper-ink-2:#B5AFA4;--paper-line:rgba(240,233,222,0.10);--paper-edge:rgba(0,0,0,0.5);--paper-shadow:0 18px 60px -28px rgba(0,0,0,0.7),0 2px 12px -4px rgba(0,0,0,0.5)}.reader{position:relative;height:100vh;height:100dvh;display:grid;grid-template-rows:auto 1fr;overflow:hidden}.reader-top{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;grid-gap:16px;gap:16px;padding:14px 22px;background:var(--bg-3);border-bottom:1px solid var(--line);z-index:30}.reader-top-left,.reader-top-right{display:flex;align-items:center;gap:12px}.reader-top-right{justify-content:flex-end}.crumbs{display:flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase}.crumbs .crumb-cur{color:var(--ink)}.crumbs .slash{color:var(--ink-4)}.crumbs .crumb{color:var(--ink-3)}.back-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 14px 8px 10px;border-radius:var(--radius-pill);border:1px solid var(--line);background:rgba(242,237,230,.03);color:var(--ink-2);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;transition:all .2s ease;cursor:pointer}.back-pill:hover{background:var(--ink);color:var(--bg);border-color:var(--ink)}.back-pill .arrow{width:18px;height:18px;border-radius:999px;background:rgba(242,237,230,.06);display:inline-flex;align-items:center;justify-content:center;font-size:12px}.back-pill:hover .arrow{background:rgba(14,13,11,.12)}.source-title-center{text-align:center;display:flex;flex-direction:column;gap:2px;min-width:0}.source-title-center .title-eyebrow{font-family:var(--font-mono);font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}.source-title-center .title-name{font-family:var(--font-display);font-size:17px;font-weight:400;letter-spacing:-.015em;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:480px}.source-title-center .title-name em{font-style:italic}.top-tool{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink-2);transition:all .18s ease}.top-tool:hover{color:var(--ink);border-color:var(--ink-3);background:rgba(242,237,230,.04)}.top-tool.is-on{background:var(--ink);color:var(--bg);border-color:var(--ink)}.top-pageno{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--radius-pill);border:1px solid var(--line);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--ink-2)}.top-pageno strong{color:var(--ink);font-weight:500}.reader-main{display:grid;grid-template-columns:var(--sources-col,300px) minmax(0,1fr) var(--chat-col,380px);min-height:0;position:relative;transition:grid-template-columns .32s cubic-bezier(.2,.7,.2,1)}.reader-main.no-sources{grid-template-columns:minmax(0,1fr) var(--chat-col,380px)}.reader-main.no-sources .reader-sources{display:none}.reader-main.chat-floating{grid-template-columns:var(--sources-col,300px) minmax(0,1fr)}.reader-main.chat-floating.no-sources{grid-template-columns:minmax(0,1fr)}.reader-main.chat-floating .reader-chat-rail{display:none}.reader-main.chat-left{grid-template-columns:var(--chat-col,380px) minmax(0,1fr) var(--sources-col,300px)}.reader-main.chat-left.no-sources{grid-template-columns:var(--chat-col,380px) minmax(0,1fr)}.reader-main.chat-left .reader-sources{order:1}.reader-sources{border-right:1px solid var(--line);background:var(--bg-3);overflow:hidden;display:flex;flex-direction:column;min-height:0}.reader-main.chat-left .reader-sources{border-right:0;border-left:1px solid var(--line)}.sources-head{padding:18px 18px 12px;border-bottom:1px solid var(--line-soft);display:flex;align-items:center;justify-content:space-between;gap:8px}.sources-head h3{margin:0;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-3)}.sources-head .count,.sources-head h3{font-family:var(--font-mono);font-size:10px}.sources-head .count{color:var(--ink-4);letter-spacing:.1em}.sources-list{flex:1 1;overflow-y:auto;padding:8px 10px 16px;display:flex;flex-direction:column;gap:4px}.sources-list::-webkit-scrollbar{width:8px}.sources-list::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}.source-item-row{position:relative}.src-actions{position:absolute;top:4px;right:4px;display:flex;z-index:2;opacity:0;transition:opacity .15s}.source-item-row:hover .src-actions,.src-actions:focus-within{opacity:1}.src-act-btn{width:28px;height:28px;padding:0;border:0;background:transparent;cursor:pointer}.src-act-btn,.src-act-ico{display:flex;align-items:center;justify-content:center}.src-act-ico{width:20px;height:20px;border-radius:50%;border:1px solid rgba(242,237,230,.15);background:var(--bg-0,#1a1814);color:var(--ink-3);font-size:14px;line-height:1;transition:color .15s,border-color .15s}.src-act-ico svg{display:block}.src-act-btn:hover .src-act-ico{color:var(--ink);border-color:rgba(242,237,230,.4)}.source-item.is-editing{cursor:default;align-items:center;grid-template-columns:24px 1fr}.source-item-rename{width:100%;min-width:0;min-height:36px;padding:6px 8px;font-family:var(--font-display);font-size:15px;letter-spacing:-.01em;color:var(--ink);background:rgba(242,237,230,.04);border:1px solid var(--gold);border-radius:8px;outline:none}@media (pointer:coarse){.src-actions{opacity:0;pointer-events:none;top:0;right:0}.source-item-row.is-active .src-actions{opacity:1;pointer-events:auto}.source-item-row.is-active .source-item{padding-right:92px}.src-act-btn{width:44px;height:44px}.src-act-ico{width:28px;height:28px}.source-item-rename{font-size:16px;min-height:44px}}.source-item{display:grid;grid-template-columns:24px 1fr auto;grid-gap:10px;gap:10px;align-items:flex-start;padding:12px;border-radius:12px;border:1px solid transparent;text-align:left;color:var(--ink-2);transition:all .18s ease;width:100%;cursor:pointer}.source-item:hover{background:rgba(242,237,230,.04);border-color:var(--line);color:var(--ink)}.source-item.is-active{background:rgba(201,168,124,.08);border-color:rgba(201,168,124,.32);color:var(--ink)}.source-item-glyph{width:24px;height:30px;display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:8px;letter-spacing:.05em;border:1px solid var(--line);border-radius:3px;color:var(--ink-3);background:rgba(242,237,230,.02);flex-shrink:0}.source-item.is-active .source-item-glyph{border-color:var(--gold);color:var(--gold)}.source-item-body{min-width:0}.source-item-title{font-family:var(--font-display);font-size:15px;letter-spacing:-.01em;line-height:1.2;margin:0;font-weight:400;overflow:hidden;text-overflow:ellipsis;-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical}.source-item-meta{margin-top:4px;font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);display:flex;align-items:center;gap:6px}.source-item-meta .pages-bar{width:32px;height:2px;background:var(--line);border-radius:999px;overflow:hidden}.source-item-meta .pages-fill{display:block;height:100%;background:var(--gold)}.source-item-status{font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;padding:3px 7px;border-radius:999px;border:1px solid var(--line);color:var(--ink-4);align-self:center;flex-shrink:0}.source-item-status.is-loading{color:var(--gold);border-color:rgba(201,168,124,.4)}.source-item-status.is-ready{display:none}.source-loading-dot{display:inline-block;width:5px;height:5px;background:currentColor;border-radius:999px;margin-right:4px;animation:loading-pulse 1.2s ease-in-out infinite}@keyframes loading-pulse{0%,to{opacity:.3}50%{opacity:1}}.sources-section-label{font-family:var(--font-mono);font-size:9px;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-4);padding:14px 14px 6px}.source-toc{padding:6px 6px 10px 36px;display:flex;flex-direction:column;gap:1px;border-left:1px solid var(--line-soft);margin:2px 0 6px 22px}.source-toc-item{text-align:left;display:flex;gap:10px;align-items:baseline;padding:5px 8px;border-radius:6px;font-family:var(--font-body);font-size:12px;color:var(--ink-3);transition:all .16s ease;cursor:pointer}.source-toc-item:hover{background:rgba(242,237,230,.04);color:var(--ink)}.source-toc-item.is-current{color:var(--ink);background:rgba(242,237,230,.05)}.source-toc-item.is-current:before{content:"";width:4px;height:4px;background:var(--gold);border-radius:999px;display:inline-block}.source-toc-num{font-family:var(--font-mono);font-size:10px;color:var(--ink-4);letter-spacing:.05em}.sources-add{margin:12px 10px 16px;padding:14px;border:1px dashed var(--line);border-radius:14px;color:var(--ink-2);display:flex;align-items:center;gap:12px;font-size:13px;transition:all .18s ease;cursor:pointer;text-align:left}.sources-add:hover{border-color:var(--ink-3);background:rgba(242,237,230,.025);color:var(--ink)}.sources-add .plus{width:26px;height:26px;border-radius:999px;border:1px solid var(--line);font-family:var(--font-display);font-size:20px;font-weight:300;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.sources-add-kinds{display:flex;gap:4px;margin-left:auto}.sources-add-kinds span{font-family:var(--font-mono);font-size:8px;letter-spacing:.08em;padding:2px 5px;border-radius:4px;background:rgba(242,237,230,.04);color:var(--ink-3)}.reader-paper-wrap{overflow-y:auto;overflow-x:hidden;background:linear-gradient(180deg,rgba(0,0,0,.18),transparent 80px),#08070555;padding:28px clamp(20px,4vw,56px) 80px;min-height:0;position:relative;scroll-behavior:smooth}.reader-paper-wrap::-webkit-scrollbar{width:12px}.reader-paper-wrap::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px}.reader-paper-wrap::-webkit-scrollbar-thumb:hover{background:var(--ink-4)}.sel-popover{position:absolute;z-index:80;transform:translate(-50%,-100%) translateY(-10px);background:#16140F;border:1px solid var(--line);border-radius:14px;padding:6px;display:flex;align-items:center;gap:2px;box-shadow:0 18px 40px -12px rgba(0,0,0,.6);animation:pop-in .18s cubic-bezier(.2,.7,.2,1)}@keyframes pop-in{0%{opacity:0;transform:translate(-50%,-100%) translateY(-2px)}to{opacity:1;transform:translate(-50%,-100%) translateY(-10px)}}.sel-popover.is-below{transform:translate(-50%) translateY(10px);animation-name:pop-in-below}@keyframes pop-in-below{0%{opacity:0;transform:translate(-50%) translateY(2px)}to{opacity:1;transform:translate(-50%) translateY(10px)}}.sel-pop-color{width:30px;height:30px;border-radius:8px;background:var(--c,var(--hl-important));border:1px solid rgba(0,0,0,.18);transition:transform .16s ease;cursor:pointer;position:relative}.sel-pop-color:hover{transform:scale(1.08)}.sel-pop-color:after{content:attr(data-label);position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(6px);font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;color:var(--ink-3);text-transform:uppercase;white-space:nowrap;opacity:0;transition:opacity .16s ease;pointer-events:none}.sel-pop-color:hover:after{opacity:1}.sel-pop-sep{width:1px;height:18px;background:var(--line);margin:0 4px}.sel-pop-btn{display:inline-flex;align-items:center;gap:6px;padding:0 10px;height:30px;border-radius:8px;font-size:12px;color:var(--ink-2);transition:all .16s ease}.sel-pop-btn:hover{background:rgba(242,237,230,.06);color:var(--ink)}.sel-pop-btn .ico{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;font-size:12px}.sel-pop-btn .ico svg{display:block}@media (pointer:coarse){.sel-popover{flex-wrap:wrap;justify-content:center;width:max-content;max-width:calc(100vw - 16px);gap:4px}.sel-pop-color{width:44px;height:44px}.sel-pop-sep{display:none}.sel-pop-btn{height:44px;padding:0 14px;font-size:13px}}.reader-chat-rail{border-left:1px solid var(--line);background:var(--chat-bg);display:flex;flex-direction:column;min-height:0;overflow:hidden;position:relative}.reader-main.chat-left .reader-chat-rail{border-left:0;border-right:1px solid var(--line-soft);order:-1}.chat-head{display:grid;grid-template-columns:auto 1fr auto;grid-gap:12px;gap:12px;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line-soft)}.chat-head-avatar{width:40px;height:40px;border-radius:999px;background:rgba(242,237,230,.05);display:inline-flex;align-items:center;justify-content:center;overflow:hidden}.chat-head-name{font-family:var(--font-display);font-size:17px;font-weight:400;letter-spacing:-.01em}.chat-head-status{font-family:var(--font-mono);font-size:9px;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-3);display:flex;align-items:center;gap:6px}.chat-head-status .ctx-dot{width:5px;height:5px;background:var(--gold);border-radius:999px}.chat-head-actions{display:flex;gap:4px}.chat-head-actions button{width:28px;height:28px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;color:var(--ink-3);transition:all .16s ease}.chat-head-actions button:hover{background:rgba(242,237,230,.06);color:var(--ink)}.chat-tabs{display:flex;padding:8px 12px;gap:4px;border-bottom:1px solid var(--line-soft);background:var(--bg-2)}.chat-tab{flex:1 1;padding:8px 10px;border-radius:8px;font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);text-align:center;transition:all .16s ease;display:inline-flex;align-items:center;justify-content:center;gap:6px}.chat-tab:hover{color:var(--ink);background:rgba(242,237,230,.03)}.chat-tab.is-on{color:var(--ink);background:rgba(242,237,230,.07)}.chat-tab .count{font-size:9px;background:rgba(242,237,230,.08);padding:1px 5px;border-radius:999px}.chat-tab.is-on .count{background:var(--gold);color:#18130E}.chat-body{flex:1 1;overflow-y:auto;padding:14px 14px 12px;display:flex;flex-direction:column;gap:10px;min-height:0}.chat-body::-webkit-scrollbar{width:8px}.chat-body::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}.thread-context{margin:0 0 4px;padding:12px 14px;border-left:3px solid var(--hl-color,var(--hl-important));background:rgba(242,237,230,.04);border-radius:0 12px 12px 0;font-family:var(--font-read);font-size:13px;line-height:1.5;color:var(--ink-2);position:relative}.thread-context .ctx-eyebrow{font-family:var(--font-mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-4);margin-bottom:6px;display:flex;align-items:center;gap:8px}.thread-context .ctx-eyebrow .page,.thread-context .ctx-eyebrow .src-name{color:var(--ink-3)}.thread-context blockquote{margin:0;font-style:italic;color:var(--ink);text-wrap:pretty}.thread-context blockquote:before{content:"«";color:var(--ink-3)}.thread-context blockquote:after{content:"»";color:var(--ink-3)}.thread-context .ctx-close{position:absolute;top:6px;right:8px;width:22px;height:22px;border-radius:999px;color:var(--ink-3);display:inline-flex;align-items:center;justify-content:center;font-size:12px;transition:all .16s ease}.thread-context .ctx-close:hover{background:rgba(242,237,230,.06);color:var(--ink)}.msg{max-width:92%;padding:10px 14px;font-size:14px;line-height:1.5;border-radius:14px;text-wrap:pretty;white-space:pre-wrap;word-break:break-word}.msg.role-bot{align-self:flex-start;background:rgba(242,237,230,.09);border:1px solid var(--line);border-top-left-radius:4px;color:var(--ink)}.msg.role-me{align-self:flex-end;background:var(--ink);color:var(--bg);border-top-right-radius:4px}.msg-citation{margin-top:6px;padding:6px 8px;background:rgba(var(--ink-rgb),.06);border-radius:8px;font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);display:inline-flex;gap:8px;align-items:center;cursor:pointer;transition:all .16s ease}.msg-citation:hover{color:var(--ink);background:rgba(var(--ink-rgb),.1)}.msg-citation .cite-page{color:var(--gold)}.msg-typing{display:inline-flex;gap:5px;align-items:center;padding:14px}.msg-typing span{width:5px;height:5px;background:var(--ink-3);border-radius:999px;animation:typing 1.2s ease-in-out infinite}.msg-typing span:nth-child(2){animation-delay:.15s}.msg-typing span:nth-child(3){animation-delay:.3s}@keyframes typing{0%,to{opacity:.3;transform:translateY(0)}50%{opacity:1;transform:translateY(-3px)}}.chat-suggestions{display:flex;flex-wrap:wrap;gap:6px;padding:4px 0 0}.chat-suggestion{padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink-2);font-family:var(--font-body);font-size:12px;text-align:left;transition:all .16s ease;line-height:1.3}.chat-suggestion:hover{color:var(--ink);border-color:var(--ink-3);background:rgba(242,237,230,.04)}.chat-foot{border-top:1px solid var(--line-soft);background:var(--bg-2);padding:10px 12px 12px;display:flex;flex-direction:column;gap:8px}.chat-attach-row{display:flex;gap:4px;flex-wrap:wrap;align-items:center}.chat-attach-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 10px 5px 7px;border-radius:999px;border:1px solid var(--line);background:rgba(242,237,230,.025);font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2)}.chat-attach-pill .x{color:var(--ink-3);padding:0 0 0 4px;font-size:12px}.chat-attach-pill .x:hover{color:var(--ink)}.chat-attach-pill .glyph{font-size:9px}.reader .chat-input-row{display:grid;grid-template-columns:auto 1fr auto;grid-gap:6px;gap:6px;align-items:end;background:rgba(242,237,230,.04);border:1px solid var(--line);border-radius:16px;padding:6px 6px 6px 8px}.reader .chat-input-row:focus-within{border-color:var(--ink-3)}.reader .chat-input{background:transparent;border:0;outline:0;color:var(--ink);font-family:var(--font-body);font-size:14px;padding:8px 4px;resize:none;line-height:1.4;width:100%;max-height:140px;font-feature-settings:"kern"}.reader .chat-input::placeholder{color:var(--ink-3)}.chat-icon-btn{width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:var(--ink-3);transition:all .16s ease;font-size:16px}.chat-icon-btn:hover{color:var(--ink);background:rgba(242,237,230,.06)}.chat-icon-btn:disabled{opacity:.5;cursor:default}.chat-mic-btn.is-recording{color:#e5484d;background:rgba(229,72,77,.12);animation:chat-mic-pulse 1.4s ease-in-out infinite}.chat-mic-btn.is-recording:hover{background:rgba(229,72,77,.18)}@keyframes chat-mic-pulse{0%,to{box-shadow:0 0 0 0 rgba(229,72,77,.45)}50%{box-shadow:0 0 0 4px rgba(229,72,77,0)}}.chat-send{width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--bg);display:inline-flex;align-items:center;justify-content:center;font-size:17px;transition:all .16s ease}.chat-send:disabled{opacity:.3}.chat-send:not(:disabled):hover{transform:translateY(-1px)}.chat-foot-hint{letter-spacing:.12em;text-transform:uppercase;color:var(--ink-4);display:flex;align-items:center;justify-content:space-between}.chat-foot-hint,.chat-foot-hint kbd{font-family:var(--font-mono);font-size:9px}.chat-foot-hint kbd{border:1px solid var(--line);border-radius:4px;padding:2px 5px;color:var(--ink-3)}.threads-empty{padding:8px 0;color:var(--ink-3);font-size:13px;line-height:1.5}.threads-empty .threads-empty-h{color:var(--ink);font-family:var(--font-display);font-size:17px;letter-spacing:-.01em;margin:0 0 6px;font-weight:400}.threads-list{gap:8px;padding:0}.thread-card,.threads-list{display:flex;flex-direction:column}.thread-card{text-align:left;padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:rgba(242,237,230,.03);gap:6px;transition:all .18s ease;cursor:pointer}.thread-card:hover{border-color:var(--ink-3);background:rgba(242,237,230,.06);transform:translateY(-1px)}.thread-card .thread-meta{display:flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}.thread-card .thread-tag{width:8px;height:8px;border-radius:2px}.thread-card .thread-tag.kind-important{background:var(--hl-important)}.thread-card .thread-tag.kind-term{background:var(--hl-term)}.thread-card .thread-tag.kind-question{background:var(--hl-question)}.thread-card .thread-tag.kind-quote{background:var(--hl-quote)}.thread-card .thread-tag.kind-ai{background:var(--hl-ai)}.thread-card .thread-page{color:var(--gold)}.thread-card .thread-quote{font-family:var(--font-read);font-size:13px;line-height:1.5;font-style:italic;color:var(--ink);text-wrap:pretty}.thread-card .thread-last,.thread-card .thread-quote{overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.thread-card .thread-last{font-size:12px;color:var(--ink-2);line-height:1.45}.thread-card .thread-last .who{letter-spacing:.1em;margin-right:4px;text-transform:uppercase}.thread-card .thread-count,.thread-card .thread-last .who{color:var(--ink-3);font-family:var(--font-mono);font-size:9px}.thread-card .thread-count{margin-left:auto}.back-to-threads{display:inline-flex;align-items:center;gap:8px;padding:6px 12px 6px 8px;border-radius:999px;border:1px solid var(--line);background:rgba(242,237,230,.03);font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);transition:all .16s ease;align-self:flex-start;margin-bottom:4px}.back-to-threads:hover{color:var(--ink);border-color:var(--ink-3)}.back-to-threads .arrow{width:18px;height:18px;border-radius:999px;background:rgba(242,237,230,.06);display:inline-flex;align-items:center;justify-content:center;font-size:12px}.hl-list{display:flex;flex-direction:column;gap:6px;padding:0}.hl-row{text-align:left;display:grid;grid-template-columns:8px 1fr auto;grid-gap:10px;gap:10px;align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:rgba(242,237,230,.02);transition:all .16s ease;cursor:pointer}.hl-row:hover{background:rgba(242,237,230,.06);border-color:var(--ink-3)}.hl-row .hl-tag{width:6px;height:28px;border-radius:999px}.hl-row.kind-important .hl-tag{background:var(--hl-important)}.hl-row.kind-term .hl-tag{background:var(--hl-term)}.hl-row.kind-question .hl-tag{background:var(--hl-question)}.hl-row.kind-quote .hl-tag{background:var(--hl-quote)}.hl-row.kind-ai .hl-tag{background:var(--hl-ai)}.hl-row .hl-text{font-family:var(--font-read);font-size:13px;line-height:1.4;color:var(--ink);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.hl-row .hl-page{font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;color:var(--ink-3)}.chat-float-trigger{position:fixed;bottom:22px;right:22px;z-index:50;width:64px;height:64px;border-radius:999px;background:var(--bg-2);border:1px solid var(--line);box-shadow:0 12px 30px -8px rgba(0,0,0,.5);display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease}.chat-float-trigger:hover{transform:translateY(-2px)}.chat-float-panel{position:fixed;right:22px;bottom:22px;width:var(--chat-col,380px);height:70vh;height:70dvh;max-height:720px;border-radius:18px;overflow:hidden;background:var(--bg-2);border:1px solid var(--line);box-shadow:0 30px 70px -16px rgba(0,0,0,.6);z-index:51;display:flex;flex-direction:column;min-height:0}.dnd-overlay{position:fixed;inset:0;z-index:90;background:rgba(8,7,6,.78);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:40px;pointer-events:none;opacity:0;transition:opacity .2s ease}.dnd-overlay.is-on{opacity:1;pointer-events:auto}.dnd-card{border:2px dashed var(--gold);border-radius:24px;padding:60px 80px;text-align:center;background:rgba(201,168,124,.06);display:flex;flex-direction:column;gap:14px;align-items:center}.dnd-card h2{font-family:var(--font-display);font-size:38px;font-weight:400;letter-spacing:-.02em;margin:0;color:var(--ink)}.dnd-card h2 em{font-style:italic;color:var(--gold)}.dnd-card p{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin:0}.addsrc-overlay{position:fixed;inset:0;z-index:200;background:rgba(6,5,4,.7);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;padding:24px}.addsrc-panel{width:100%;max-width:580px;background:#16140F;border:1px solid var(--line);border-radius:22px;padding:26px;display:flex;flex-direction:column;gap:18px;box-shadow:0 28px 80px rgba(0,0,0,.55)}.addsrc-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px}.addsrc-head h2{margin:0;font-family:var(--font-display);font-size:30px;font-weight:400;letter-spacing:-.02em}.addsrc-head h2 em{font-style:italic;color:var(--gold)}.addsrc-types{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px}.addsrc-type{text-align:left;display:flex;flex-direction:column;gap:6px;padding:16px;border-radius:14px;border:1px solid var(--line);background:rgba(242,237,230,.025);transition:all .18s ease}.addsrc-type:hover{border-color:var(--ink-3);background:rgba(242,237,230,.05)}.addsrc-type.is-on{background:rgba(201,168,124,.08);border-color:var(--gold)}.addsrc-type-glyph{font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:var(--ink-3);width:28px;height:32px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:4px}.addsrc-type-title{font-family:var(--font-display);font-size:18px;font-weight:400;letter-spacing:-.01em}.addsrc-type-blurb{font-size:12px;color:var(--ink-3);line-height:1.4}.addsrc-input{background:transparent;border:1px solid var(--line);border-radius:12px;padding:12px 14px;color:var(--ink);font-family:var(--font-mono);font-size:13px;outline:0;width:100%}.addsrc-input:focus{border-color:var(--ink-3)}.addsrc-actions{display:flex;justify-content:flex-end;align-items:center;gap:10px;border-top:1px solid var(--line-soft);padding-top:14px}.btn-primary{display:inline-flex;align-items:center;gap:10px;padding:12px 20px;border-radius:999px;background:var(--ink);color:var(--bg);font-size:13px;font-weight:500;transition:all .2s ease}.btn-primary:hover{transform:translateY(-2px)}.btn-primary:disabled{opacity:.35;cursor:default;transform:none}.btn-ghost{padding:12px 18px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink-2);font-size:12px;transition:all .16s ease}.btn-ghost:hover{color:var(--ink);border-color:var(--ink-3)}.tw-panel{position:fixed;top:76px;right:22px;width:320px;max-height:calc(100vh - 100px);max-height:calc(100dvh - 100px);background:#16140F;border:1px solid var(--line);border-radius:18px;z-index:70;padding:16px 16px 18px;display:flex;flex-direction:column;gap:14px;box-shadow:0 28px 60px -10px rgba(0,0,0,.55);overflow-y:auto}.tw-panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px}.tw-panel-title{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}.tw-close{width:26px;height:26px;border-radius:999px;color:var(--ink-3);font-size:12px;display:inline-flex;align-items:center;justify-content:center}.tw-close:hover{color:var(--ink);background:rgba(242,237,230,.06)}.tw-section{display:flex;flex-direction:column;gap:10px}.tw-section-label{font-family:var(--font-mono);font-size:9px;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-4)}.tw-row{display:grid;grid-template-columns:1fr auto;grid-gap:8px;gap:8px;align-items:center}.tw-row-label{font-size:13px;color:var(--ink-2)}.tw-seg{display:inline-flex;background:rgba(242,237,230,.04);border:1px solid var(--line);border-radius:999px;padding:2px;gap:2px}.tw-seg button{padding:5px 11px;border-radius:999px;font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);transition:all .16s ease}.tw-seg button.is-on{background:var(--ink);color:var(--bg)}.tw-swatches{display:flex;gap:6px}.tw-swatch{width:22px;height:22px;border-radius:6px;background:var(--c);border:1px solid rgba(0,0,0,.2);transition:transform .16s ease}.tw-swatch:hover{transform:scale(1.1)}.tw-swatch.is-on{box-shadow:0 0 0 2px var(--ink),0 0 0 3px var(--c)}.tw-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:120px;height:16px;background:transparent;cursor:pointer}.tw-slider::-webkit-slider-runnable-track{height:2px;background:var(--line);border-radius:999px}.tw-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;background:var(--ink);border-radius:999px;margin-top:-6px}.tw-slider::-moz-range-track{height:2px;background:var(--line);border-radius:999px}.tw-slider::-moz-range-thumb{width:14px;height:14px;background:var(--ink);border-radius:999px;border:0}.tw-toggle{width:36px;height:20px;border-radius:999px;background:rgba(242,237,230,.06);border:1px solid var(--line);position:relative;transition:background .16s ease}.tw-toggle .knob{position:absolute;top:1px;left:1px;width:16px;height:16px;border-radius:999px;background:var(--ink);transition:transform .18s ease}.tw-toggle.is-on{background:var(--gold)}.tw-toggle.is-on .knob{transform:translateX(16px);background:#18130E}.reader :focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}.chat-backdrop,.chat-sheet-handle,.sources-backdrop,.top-tool-chat,.top-tool-menu{display:none}@media (max-width:1180px){.reader-main,.reader-main.no-sources{grid-template-columns:minmax(0,1fr) var(--chat-col,360px)}.reader-main.chat-left,.reader-main.chat-left.no-sources{grid-template-columns:var(--chat-col,360px) minmax(0,1fr)}.reader-main.chat-floating,.reader-main.chat-floating.no-sources{grid-template-columns:minmax(0,1fr)}.top-tool-sources{display:none}.top-tool-menu{display:inline-flex}.reader-sources{display:flex;position:fixed;left:0;top:0;bottom:0;width:86%;max-width:340px;z-index:60;border-right:1px solid var(--line);background:#14120F;box-shadow:0 0 60px rgba(0,0,0,.6);transform:translateX(-100%);transition:transform .28s cubic-bezier(.2,.7,.2,1)}.reader.sources-drawer-open .reader-main.no-sources .reader-sources,.reader.sources-drawer-open .reader-sources{display:flex!important;transform:translateX(0)}.sources-backdrop{display:block;position:fixed;inset:0;z-index:55;background:rgba(6,5,4,.6);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);animation:sources-fade-in .18s ease}}@keyframes sources-fade-in{0%{opacity:0}to{opacity:1}}@media (max-width:860px){.reader-main,.reader-main.chat-floating,.reader-main.chat-floating.no-sources,.reader-main.chat-left,.reader-main.chat-left.no-sources,.reader-main.no-sources{grid-template-columns:minmax(0,1fr)}.top-tool-chat{display:inline-flex}.reader-main .reader-chat-rail,.reader-main.chat-floating .reader-chat-rail,.reader-main.chat-left .reader-chat-rail{display:flex;position:fixed;left:0;right:0;bottom:0;top:auto;height:90vh;height:90dvh;max-height:90vh;max-height:90dvh;z-index:60;order:0;border-left:0;border-right:0;border-top:1px solid var(--line);border-radius:18px 18px 0 0;box-shadow:0 -12px 50px rgba(0,0,0,.6);padding-bottom:env(safe-area-inset-bottom);transform:translateY(100%);transition:transform .3s cubic-bezier(.2,.7,.2,1)}.reader.chat-drawer-open .reader-chat-rail{transform:translateY(0)}.chat-float-panel{left:12px;right:12px;width:auto;height:80vh;height:80dvh}.chat-backdrop{display:block;position:fixed;inset:0;z-index:55;background:rgba(6,5,4,.6);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);animation:sources-fade-in .18s ease}.reader-chat-rail .chat-sheet-handle{display:block;flex:0 0 auto;width:100%;height:22px;border:0;background:transparent;position:relative;cursor:pointer}.reader-chat-rail .chat-sheet-handle:before{content:"";position:absolute;left:50%;top:9px;transform:translateX(-50%);width:40px;height:4px;border-radius:999px;background:var(--ink-4)}}@media (max-width:640px){.reader-top{grid-template-columns:auto 1fr auto;gap:8px;padding:10px 12px}.reader-top-left,.reader-top-right{gap:8px}.source-title-center,.top-pageno{display:none}.back-pill{padding:7px 11px 7px 9px}.reader-top-right .btn-ghost,.reader-top-right .btn-primary{padding:9px 13px;font-size:12px}}.pdfn-pages{max-width:var(--paper-width,760px);margin:0 auto;display:flex;flex-direction:column;gap:22px}.pdfn-page{position:relative}.pdfn-page-no{position:absolute;top:-18px;right:2px;font-family:var(--font-mono);font-size:10px;color:var(--ink-4);letter-spacing:.08em}.pdfn-page-inner{position:relative;margin:0 auto;background:#fff;border-radius:4px;box-shadow:var(--paper-shadow);overflow:hidden}.pdfn-canvas{display:block}.pdfn-page-inner .textLayer{position:absolute;inset:0;text-align:initial;overflow:clip;opacity:1;line-height:1;text-size-adjust:none;forced-color-adjust:none;transform-origin:0 0;z-index:1;--min-font-size:1;--text-scale-factor:calc(var(--total-scale-factor) * var(--min-font-size));--min-font-size-inv:calc(1 / var(--min-font-size))}.pdfn-page-inner .textLayer :is(span,br){color:transparent;position:absolute;white-space:pre;cursor:text;transform-origin:0 0}.pdfn-page-inner .textLayer .markedContent span:not(.markedContent),.pdfn-page-inner .textLayer>:not(.markedContent){z-index:1;--font-height:0;font-size:calc(var(--text-scale-factor) * var(--font-height));--scale-x:1;--rotate:0deg;transform:rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv))}.pdfn-page-inner .textLayer .markedContent{display:contents}.pdfn-page-inner .textLayer ::selection{background:rgba(184,115,51,.28)}.pdfn-page-inner .textLayer .endOfContent{display:block;position:absolute;inset:100% 0 0;z-index:0;cursor:default;-webkit-user-select:none;-moz-user-select:none;user-select:none}.pdfn-page-inner .textLayer.selecting .endOfContent{top:0}.pdfn-hl-layer{position:absolute;inset:0;z-index:0;pointer-events:none}.pdfn-hl{position:absolute;background-color:color-mix(in oklab,var(--hl-color,var(--hl-important)) 42%,transparent);border-radius:2px;pointer-events:auto;cursor:pointer;transition:background-color .12s}.pdfn-hl.kind-important{--hl-color:var(--hl-important)}.pdfn-hl.kind-term{--hl-color:var(--hl-term)}.pdfn-hl.kind-question{--hl-color:var(--hl-question)}.pdfn-hl.kind-quote{--hl-color:var(--hl-quote)}.pdfn-hl:hover{background-color:color-mix(in oklab,var(--hl-color,var(--hl-important)) 60%,transparent)}.pdfn-hl.is-active{background-color:color-mix(in oklab,var(--hl-color,var(--hl-important)) 70%,transparent)}.pdfn-hl.has-thread{box-shadow:inset 0 -2px 0 var(--hl-color,var(--hl-important))}.blog-empty{align-items:center;justify-content:center;gap:14px;height:100%;color:var(--ink-4);font-family:var(--font-mono);font-size:13px;text-align:center}.blog-empty,.sources-toc-panel{display:flex;flex-direction:column}.sources-toc-panel{border-top:1px solid var(--line-soft);flex-shrink:0;overflow:hidden;max-height:340px}.sources-toc-head{padding:10px 16px 6px;position:-webkit-sticky;position:sticky;top:0;background:var(--bg-1);z-index:1}.sources-toc-list{overflow-y:auto;padding:0 0 12px}.sources-toc-item{position:relative;display:flex;align-items:baseline;gap:8px;width:100%;padding:5px 16px;background:none;border:none;cursor:pointer;text-align:left;color:var(--ink-3);font-family:var(--font-mono);font-size:11px;line-height:1.4;transition:color .15s,background .15s}.sources-toc-item:hover{color:var(--ink);background:var(--bg-hover,rgba(255,255,255,.04))}.sources-toc-item.is-current{color:var(--gold,#F2C24A)}.sources-toc-item.is-current:before{content:"";position:absolute;left:6px;top:11px;width:4px;height:4px;border-radius:999px;background:var(--gold,#F2C24A)}.sources-toc-num{color:var(--ink-4);font-size:9px;flex-shrink:0;min-width:18px}.sources-toc-label{flex:1 1}.notes-panel{display:flex;flex-direction:column;flex:1 1;overflow:hidden}.notes-toolbar{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-bottom:1px solid rgba(255,255,255,.07);flex-shrink:0}.notes-voice-btn{width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid var(--line-soft);color:var(--ink-2);font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.notes-voice-btn:hover{background:rgba(255,255,255,.12)}.notes-voice-btn.is-recording{background:rgba(220,60,60,.3);border-color:#dc3c3c;color:#ff6b6b;animation:pulse-rec 1s infinite}@keyframes pulse-rec{0%,to{opacity:1}50%{opacity:.6}}.notes-textarea{flex:1 1;background:transparent;border:none;resize:none;color:var(--ink-2);font-family:var(--font-read,Georgia,serif);font-size:13px;line-height:1.7;padding:14px;outline:none;width:100%;box-sizing:border-box}.notes-textarea::placeholder{color:var(--ink-4);font-family:var(--font-mono);font-size:12px}.vocab-popup{background:var(--bg-0,#1a1714);border:1px solid var(--line-soft);border-radius:10px;padding:10px 12px;max-width:260px;box-shadow:0 8px 32px rgba(0,0,0,.5);pointer-events:all}.vocab-popup-word{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--gold,#F2C24A);text-transform:uppercase;margin-bottom:6px}.vocab-popup-exp{font-size:12px;color:var(--ink-2);line-height:1.5;margin-bottom:8px}.vocab-popup-actions{display:flex;align-items:center;justify-content:space-between;gap:8px}.vocab-popup-btn{font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;background:rgba(242,194,74,.12);border:1px solid rgba(242,194,74,.3);border-radius:6px;color:var(--gold,#F2C24A);cursor:pointer;transition:background .15s}.vocab-popup-btn:hover{background:rgba(242,194,74,.22)}.vocab-popup-close{background:none;border:none;color:var(--ink-4);cursor:pointer;font-size:13px;padding:0 4px}.vocab-popup-saved{color:var(--ink-3)}