@import"https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:wght@300;400;500;600;700&family=DM+Mono:wght@400;500&family=Instrument+Sans:wght@400;600;700&display=swap";:root{--brand-deep: #4F26CC;--brand-bright: #8B5CF6;--brand-purple: #6B3FA0;--lavender: #E0D7FF;--purple-tint: #F3EFFE;--border-color: #ece8f4;--page-bg: #FAFAFE;--dark-bg: #100F1A;--dark-surface: #181230;--near-black: #080F16;--gray-mid: #65686C;--gray-light: #CCCCCC;--white: #FFFFFF;--amber: #d97706;--amber-light: #fbbf24;--amber-tint: #fffbeb;--red: #b91c1c;--green: #166534;--green-bg: #dcfce7;--green-border: #86efac;--chair-col: var(--brand-bright);--bed-col: #64748b}.chair-paper *,*:before,*:after{box-sizing:border-box;margin:0;padding:0}.chair-paper{font-family:DM Sans,sans-serif;background:var(--page-bg);color:var(--near-black);-webkit-font-smoothing:antialiased}.chair-paper .paper-nav{position:sticky;top:64px;z-index:40;background:var(--dark-bg);display:flex;align-items:center;justify-content:center;padding:0 28px;height:52px;box-shadow:0 2px 16px #00000059;gap:16px}.chair-paper .nav-brand{display:flex;align-items:center;gap:8px;color:var(--white);font-family:"DM Serif Display",serif;font-size:.95rem}.chair-paper .nav-brand .dot{width:7px;height:7px;border-radius:50%;background:var(--brand-bright)}.chair-paper .nav-tabs{display:flex;gap:3px}.chair-paper .nav-tab{padding:7px 18px;border:none;background:transparent;color:#ffffff80;font-family:DM Sans,sans-serif;font-size:.85rem;font-weight:500;cursor:pointer;border-radius:5px;transition:all .15s}.chair-paper .nav-tab:hover{color:var(--white);background:#ffffff14}.chair-paper .nav-tab.active{color:var(--white);background:var(--brand-deep)}.chair-paper .nav-draft{font-family:DM Mono,monospace;font-size:.68rem;color:var(--amber-light);background:#d9770626;border:1px solid rgba(217,119,6,.3);padding:2px 9px;border-radius:3px;letter-spacing:.08em}.chair-paper .page{display:none}.chair-paper .page.active{display:block}.chair-paper .hero{background:linear-gradient(135deg,var(--dark-bg) 0%,var(--dark-surface) 55%,#1f1060 100%);padding:60px 28px 48px;position:relative;overflow:hidden}.chair-paper .hero:before{content:"";position:absolute;top:-80px;right:-80px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(79,38,204,.3) 0%,transparent 70%);pointer-events:none}.chair-paper .hero:after{content:"";position:absolute;bottom:-60px;left:-60px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(139,92,246,.15) 0%,transparent 70%);pointer-events:none}.chair-paper .hero-inner{max-width:900px;margin:0 auto;position:relative;z-index:1}.chair-paper .eyebrow{font-family:DM Mono,monospace;font-size:.7rem;letter-spacing:.14em;color:var(--brand-bright);text-transform:uppercase;margin-bottom:14px}.chair-paper .hero h1{font-family:"DM Serif Display",serif;font-size:clamp(1.7rem,3.8vw,2.7rem);color:var(--white);line-height:1.2;margin-bottom:14px;max-width:660px}.chair-paper .hero .sub{font-size:.95rem;color:#ffffff8c;margin-bottom:22px;max-width:540px;line-height:1.6}.chair-paper .hero .meta{display:flex;flex-wrap:wrap;gap:16px;font-size:.78rem;color:#fff6;font-family:DM Mono,monospace}.chair-paper .kpi-strip{background:var(--white);border-bottom:1px solid var(--border-color)}.chair-paper .kpi-inner{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr)}.chair-paper .kpi-item{padding:22px 24px;border-right:1px solid var(--border-color)}.chair-paper .kpi-item:last-child{border-right:none}.chair-paper .kpi-num{font-family:Instrument Sans,DM Sans,sans-serif;font-size:2.1rem;color:var(--near-black);line-height:1;margin-bottom:5px;font-weight:700}.chair-paper .kpi-num.hi{color:var(--brand-deep)}.chair-paper .kpi-num.warn{color:var(--amber)}.chair-paper .kpi-label{font-size:.79rem;color:var(--gray-mid);font-weight:500;line-height:1.3}.chair-paper .kpi-sub{font-size:.69rem;color:var(--gray-mid);margin-top:3px;font-family:DM Mono,monospace}.chair-paper .body-wrap{max-width:900px;margin:0 auto;padding:44px 28px}.chair-paper .sec-label{font-family:DM Mono,monospace;font-size:.67rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-deep);margin-bottom:18px}.chair-paper .grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:32px}.chair-paper .card{background:var(--white);border:1px solid var(--border-color);border-radius:10px;padding:22px}.chair-paper .card.full{grid-column:1/-1}.chair-paper .card h3{font-family:"DM Serif Display",serif;font-size:1.05rem;color:var(--near-black);margin-bottom:11px}.chair-paper .card p,.card li{font-size:.88rem;line-height:1.65;color:var(--gray-mid)}.chair-paper .card ul{padding-left:16px}.chair-paper .card ul li{margin-bottom:7px}.chair-paper .rate-visual{display:flex;gap:20px;align-items:flex-end;margin:14px 0}.chair-paper .rate-grp{flex:0 0 auto;text-align:center}.chair-paper .rate-num{font-family:Instrument Sans,DM Sans,sans-serif;font-size:1.4rem;font-weight:700;color:var(--near-black);margin-bottom:4px}.chair-paper .rate-bar{border-radius:4px 4px 0 0;width:56px;margin:0 auto 6px}.chair-paper .rate-bar.chair{background:linear-gradient(180deg,var(--brand-deep),var(--brand-bright));height:116px}.chair-paper .rate-bar.bed{background:linear-gradient(180deg,#64748b,#94a3b8);height:28px}.chair-paper .rate-lbl{font-size:.76rem;color:var(--gray-mid)}.chair-paper .rate-caption{font-size:.8rem;color:var(--gray-mid);line-height:1.5;margin-top:8px}.chair-paper .mech-list{display:flex;flex-direction:column;gap:9px;margin-top:10px}.chair-paper .mech-row{display:flex;align-items:center;gap:8px}.chair-paper .mech-name{font-size:.8rem;color:var(--near-black);width:150px;flex-shrink:0}.chair-paper .mech-bg{flex:1;height:7px;background:var(--border-color);border-radius:3px;overflow:hidden}.chair-paper .mech-fill{height:100%;border-radius:3px;background:var(--brand-deep)}.chair-paper .mech-fill.amber{background:var(--amber)}.chair-paper .mech-pct{font-size:.8rem;font-weight:600;color:var(--near-black);width:34px;text-align:right;flex-shrink:0}.chair-paper .callout-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;margin-bottom:30px}.chair-paper .cbox{border-radius:9px;padding:20px;margin-bottom:0}.chair-paper .cbox.green{background:#f0fdf4;border:1px solid var(--green-border)}.chair-paper .cbox.amber{background:var(--amber-tint);border:1px solid #fcd34d}.chair-paper .cbox.red{background:#fef2f2;border:1px solid #fca5a5}.chair-paper .cbox h4{font-size:.74rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;margin-bottom:9px}.chair-paper .cbox.green h4{color:var(--green)}.chair-paper .cbox.amber h4{color:#92400e}.chair-paper .cbox.red h4{color:var(--red)}.chair-paper .cbox p{font-size:.87rem;line-height:1.6;color:var(--near-black)}.chair-paper .gate-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}.chair-paper .gate-badge{display:flex;align-items:center;gap:5px;padding:5px 11px;border-radius:5px;font-size:.74rem;font-weight:600;font-family:DM Mono,monospace;background:var(--green-bg);color:var(--green);border:1px solid var(--green-border)}.chair-paper .gate-badge .dot{width:5px;height:5px;border-radius:50%;background:currentColor}.chair-paper .steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:13px;margin-top:8px}.chair-paper .step-card{background:var(--white);border:1px solid var(--border-color);border-radius:9px;padding:18px}.chair-paper .step-n{font-family:DM Mono,monospace;font-size:.67rem;color:var(--brand-deep);font-weight:500;letter-spacing:.1em;margin-bottom:7px}.chair-paper .step-card h4{font-family:"DM Serif Display",serif;font-size:1rem;color:var(--near-black);margin-bottom:7px}.chair-paper .step-card p{font-size:.82rem;color:var(--gray-mid);line-height:1.5}hr.div{border:none;border-top:1px solid var(--border-color);margin:30px 0}.chair-paper .model-tbl{width:100%;border-collapse:collapse;font-size:.82rem;font-family:DM Mono,monospace;margin-top:12px}.chair-paper .model-tbl thead th{background:var(--dark-bg);color:var(--white);padding:8px 11px;text-align:left;font-weight:500}.chair-paper .model-tbl tbody td{padding:7px 11px;border-bottom:1px solid var(--border-color);vertical-align:top}.chair-paper .model-tbl tbody tr:nth-child(2n) td{background:var(--purple-tint)}.chair-paper .model-tbl tbody tr.primary td{background:var(--amber-tint);font-weight:600}.chair-paper .rr-hi{color:var(--amber);font-weight:700}.chair-paper .rr-ok{color:var(--brand-deep);font-weight:600}.chair-paper .rr-na{color:var(--gray-mid);font-style:italic}.chair-paper .paper-page{background:#f8f8f6}.chair-paper .paper-wrap{max-width:800px;margin:0 auto;background:var(--white);padding:52px 64px 72px;box-shadow:0 2px 12px #00000012}.chair-paper .paper-header{border-bottom:2px solid var(--near-black);padding-bottom:18px;margin-bottom:26px}.chair-paper .paper-label{font-family:DM Mono,monospace;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--brand-deep);margin-bottom:10px}.chair-paper .paper-wrap h1{font-family:"DM Serif Display",serif;font-size:1.5rem;line-height:1.28;font-weight:700;color:var(--near-black);margin-bottom:13px}.chair-paper .paper-wrap .authors{font-size:.91rem;color:var(--near-black);margin-bottom:3px}.chair-paper .paper-wrap .affil{font-size:.82rem;color:var(--gray-mid);font-style:italic;margin-bottom:3px}.chair-paper .paper-wrap .pubdate{font-size:.82rem;color:var(--gray-mid)}.chair-paper .meta-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:10px}.chair-paper .ptag{font-family:DM Mono,monospace;font-size:.68rem;padding:.2rem .55rem;border:1px solid var(--border-color);border-radius:3px;color:var(--gray-mid);background:var(--purple-tint)}.chair-paper .paper-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem;margin:18px 0 26px}.chair-paper .pstat{background:var(--purple-tint);border:1px solid var(--border-color);border-radius:6px;padding:.85rem 1rem;text-align:center}.chair-paper .pstat .n{font-family:Instrument Sans,DM Sans,sans-serif;font-size:1.45rem;font-weight:700;color:var(--brand-deep);line-height:1}.chair-paper .pstat .n.warn{color:var(--amber)}.chair-paper .pstat .d{font-size:.68rem;color:var(--gray-mid);font-family:DM Mono,monospace;margin-top:2px}.chair-paper .pstat .l{font-size:.75rem;color:var(--near-black);margin-top:4px}.chair-paper .abstract-box{background:var(--purple-tint);border-left:3px solid var(--brand-deep);padding:16px 20px;margin-bottom:12px;border-radius:0 4px 4px 0}.chair-paper .abstract-box h2{font-family:DM Sans,sans-serif;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--brand-deep);margin-bottom:9px;font-weight:700}.chair-paper .abstract-box p{font-size:.91rem;margin-bottom:7px;line-height:1.65}.chair-paper .key-msgs{background:var(--amber-tint);border-left:3px solid var(--amber);padding:13px 20px;margin:0 0 26px;border-radius:0 4px 4px 0;font-size:.87rem}.chair-paper .key-msgs h2{font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:9px;color:#92400e;font-family:DM Sans,sans-serif;font-weight:700}.chair-paper .key-msgs ul{margin:0;padding-left:16px}.chair-paper .key-msgs li{margin:5px 0;color:var(--near-black);line-height:1.6}.chair-paper .sec-head{font-size:1rem;font-weight:700;color:var(--near-black);text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid #ccc;padding-bottom:3px;margin-top:36px;margin-bottom:12px;font-family:DM Sans,sans-serif}.chair-paper .sub-head{font-size:.97rem;font-weight:700;color:var(--brand-deep);margin-top:20px;margin-bottom:7px;font-family:DM Sans,sans-serif}.chair-paper .paper-wrap p{margin-bottom:11px;font-size:.93rem;line-height:1.7;color:var(--near-black)}.chair-paper .paper-wrap code{font-family:DM Mono,monospace;font-size:.84em;background:var(--purple-tint);padding:.1em .35em;border-radius:3px;color:var(--brand-deep)}.chair-paper .paper-wrap .tnote{font-size:.79rem;color:var(--gray-mid);font-style:italic;margin-top:-14px;margin-bottom:22px}.chair-paper .tbl-wrap{overflow-x:auto;margin:16px 0 20px}.chair-paper .ptbl{width:100%;border-collapse:collapse;font-size:.82rem}.chair-paper .ptbl caption{caption-side:top;text-align:left;font-weight:700;font-size:.85rem;color:var(--near-black);padding-bottom:5px;font-family:"DM Serif Display",serif}.chair-paper .ptbl thead th{background:var(--dark-bg);color:var(--white);padding:8px 11px;text-align:left;font-weight:600}.chair-paper .ptbl tbody tr:nth-child(2n){background:var(--purple-tint)}.chair-paper .ptbl tbody tr:hover{background:var(--lavender)}.chair-paper .ptbl td,.ptbl th{padding:7px 11px;border:1px solid var(--border-color);vertical-align:top}.chair-paper .ptbl td.ne{color:var(--gray-mid);font-style:italic}.chair-paper .fig-box{background:var(--white);border:1px solid var(--border-color);border-radius:8px;padding:20px}.chair-paper .fig-title{font-family:DM Sans,sans-serif;font-size:.8rem;font-weight:700;text-align:center;margin-bottom:18px;color:var(--near-black);letter-spacing:.02em;line-height:1.4}figure{margin:20px 0}.chair-paper figcaption{font-family:DM Sans,sans-serif;font-size:.78rem;color:var(--gray-mid);margin-top:10px;margin-bottom:6px;line-height:1.5}.chair-paper figcaption strong{color:var(--near-black)}.chair-paper .paper-refs ol{padding-left:20px}.chair-paper .paper-refs li{font-size:.82rem;margin-bottom:7px;color:var(--near-black);line-height:1.5}.chair-paper .paper-footer{margin-top:44px;border-top:1px solid #ccc;padding-top:12px;font-size:.77rem;color:var(--gray-mid);font-family:DM Sans,sans-serif;text-align:center}.chair-paper .guide-hero{background:var(--dark-bg);padding:54px 28px 42px;position:relative;overflow:hidden}.chair-paper .guide-hero:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,255,255,.015) 0,rgba(255,255,255,.015) 1px,transparent 1px,transparent 22px);pointer-events:none}.chair-paper .guide-inner{max-width:860px;margin:0 auto;position:relative;z-index:1}.chair-paper .guide-hero h1{font-family:"DM Serif Display",serif;font-size:clamp(1.6rem,3.3vw,2.3rem);color:var(--white);margin-bottom:14px;line-height:1.2}.chair-paper .guide-hero p{color:#ffffff8c;font-size:.96rem;max-width:540px;line-height:1.6}.chair-paper .guide-body{max-width:860px;margin:0 auto;padding:44px 28px 60px}.chair-paper .guide-sec{margin-bottom:44px}.chair-paper .guide-sec-head{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}.chair-paper .gicon{width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0}.chair-paper .gicon.purple{background:var(--purple-tint)}.chair-paper .gicon.amber{background:#fef3c7}.chair-paper .gicon.red{background:#fee2e2}.chair-paper .gicon.navy{background:#dbeafe}.chair-paper .guide-sec-head h2{font-family:"DM Serif Display",serif;font-size:1.25rem;color:var(--near-black)}.chair-paper .guide-sec-head .sn{font-family:DM Mono,monospace;font-size:.67rem;color:var(--gray-mid)}.chair-paper .acc{margin-bottom:9px}.chair-paper .acc-hd{width:100%;text-align:left;background:var(--white);border:1px solid var(--border-color);border-radius:7px;padding:12px 18px;cursor:pointer;font-family:DM Sans,sans-serif;font-size:.9rem;font-weight:500;color:var(--near-black);display:flex;align-items:center;justify-content:space-between;transition:all .15s}.chair-paper .acc-hd:hover{background:var(--purple-tint)}.chair-paper .acc-hd.open{border-radius:7px 7px 0 0;border-bottom-color:transparent}.chair-paper .acc-chev{font-size:.7rem;color:var(--gray-mid);transition:transform .2s}.chair-paper .acc-hd.open .acc-chev{transform:rotate(180deg)}.chair-paper .acc-body{display:none;background:var(--white);border:1px solid var(--border-color);border-top:none;border-radius:0 0 7px 7px;padding:14px 18px 18px}.chair-paper .acc-body.open{display:block}.chair-paper .acc-body p,.acc-body li{font-size:.86rem;line-height:1.7;color:var(--near-black)}.chair-paper .acc-body ul{padding-left:15px}.chair-paper .acc-body li{margin-bottom:5px}.chair-paper .acc-body p+p{margin-top:9px}.chair-paper .acc-body code{font-family:DM Mono,monospace;font-size:.84em;background:var(--purple-tint);padding:.1em .35em;border-radius:3px;color:var(--brand-deep)}.chair-paper .lim-tbl{width:100%;border-collapse:collapse;font-size:.84rem}.chair-paper .lim-tbl th{background:var(--dark-bg);color:var(--white);padding:9px 13px;text-align:left;font-weight:500;font-size:.78rem;letter-spacing:.04em}.chair-paper .lim-tbl td{padding:9px 13px;border-bottom:1px solid var(--border-color);color:var(--near-black);line-height:1.5;vertical-align:top}.chair-paper .lim-tbl tr:nth-child(2n) td{background:var(--purple-tint)}.chair-paper .badge{display:inline-block;padding:2px 7px;border-radius:3px;font-size:.7rem;font-weight:600;font-family:DM Mono,monospace}.chair-paper .badge.material{background:#fee2e2;color:var(--red)}.chair-paper .badge.moderate{background:#fef3c7;color:#92400e}.chair-paper .badge.low{background:var(--green-bg);color:var(--green)}.chair-paper .chklist{list-style:none;padding:0;display:flex;flex-direction:column;gap:7px}.chair-paper .chklist li{display:flex;align-items:flex-start;gap:9px;background:var(--white);border:1px solid var(--border-color);border-radius:7px;padding:11px 15px;font-size:.86rem;color:var(--near-black);line-height:1.5}.chair-paper .chk{width:17px;height:17px;border-radius:3px;background:var(--green-bg);border:1px solid var(--green-border);flex-shrink:0;display:flex;align-items:center;justify-content:center;color:var(--green);font-size:.62rem;margin-top:1px}.chair-paper .chk.warn{background:#fef3c7;border-color:#fcd34d;color:#92400e}.chair-paper .guide-footer{background:var(--dark-bg);padding:20px 28px;text-align:center;font-size:.77rem;color:#ffffff4d;font-family:DM Mono,monospace;letter-spacing:.04em}.chair-paper{overflow-x:hidden}.chair-paper svg{max-width:100%;height:auto}.chair-paper .tbl-wrap,.chair-paper .fig-box{overflow-x:auto;-webkit-overflow-scrolling:touch}@media(max-width:680px){.chair-paper .paper-nav{padding:0 8px}.chair-paper .nav-tab{padding:6px 10px;font-size:.75rem}.chair-paper .nav-draft{font-size:.6rem;padding:2px 6px}.chair-paper .kpi-inner{grid-template-columns:repeat(2,1fr)}.chair-paper .kpi-item{padding:14px 12px}.chair-paper .kpi-num{font-size:1.5rem}.chair-paper .grid2,.chair-paper .card.full>div[style*=grid]{grid-template-columns:1fr!important}.chair-paper .callout-grid{grid-template-columns:1fr}.chair-paper .body-wrap{padding:28px 14px;max-width:100%}.chair-paper .hero,.chair-paper .guide-hero{padding:36px 14px 28px}.chair-paper .paper-wrap{padding:28px 16px 48px;max-width:100%;overflow-x:hidden}.chair-paper .steps{grid-template-columns:1fr}.chair-paper .paper-stats{grid-template-columns:1fr 1fr}.chair-paper .guide-body{padding:28px 14px}.chair-paper .model-tbl{font-size:.72rem}.chair-paper .model-tbl thead th,.chair-paper .model-tbl tbody td{padding:5px 7px}.chair-paper .ptbl{font-size:.72rem}.chair-paper .ptbl td,.chair-paper .ptbl th{padding:5px 7px}.chair-paper .mech-name{width:100px;font-size:.72rem}.chair-paper .rate-visual{flex-wrap:wrap}.chair-paper .hero h1{font-size:1.4rem}.chair-paper .hero .sub{font-size:.85rem}.chair-paper .hero .meta{font-size:.68rem}.chair-paper .guide-sec-head h2{font-size:1.05rem}.chair-paper .acc-hd{padding:10px 12px;font-size:.82rem}.chair-paper .acc-body{padding:10px 12px 14px}.chair-paper .lim-tbl{font-size:.75rem}.chair-paper .lim-tbl td,.chair-paper .lim-tbl th{padding:7px 8px}}