/* Concept C's glass navigation capsule and expandable material selector. */
:root{--cnav-lime:#d8f266;--cnav-ink:#0d1410;--cnav-text:#f2f5e8;--cnav-muted:#a4b19f;--cnav-line:#526047;--cnav-height:82px}
html{scroll-padding-top:calc(var(--cnav-height) + 38px)}
.index-toolbar{top:calc(var(--cnav-height) + 28px);z-index:22}
.cnav-shell{position:sticky;top:14px;z-index:80;display:flex;align-items:center;gap:22px;width:calc(100% - 52px);max-width:1490px;min-height:82px;margin:14px auto 14px;padding:15px 20px;border:1px solid #60705466;border-radius:24px;background:linear-gradient(125deg,#293425dd,#151e16ed 70%);box-shadow:0 18px 55px #0004,inset 0 1px 0 #f0ffd914;backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px)}
.cnav-brand{position:relative;display:grid;grid-template-columns:auto 9px;align-items:center;gap:4px 5px;flex-shrink:0;color:var(--cnav-text);padding:3px 2px}
.cnav-brand-name{font:700 23px/1.05 'Space Grotesk',Arial,sans-serif;letter-spacing:-.06em}
.cnav-brand-dot{width:7px;height:7px;background:var(--cnav-lime);border-radius:50%;align-self:start;margin-top:3px;box-shadow:0 0 15px #d8f26655}
.cnav-brand-caption{grid-column:1/-1;font:500 6.5px/1.5 'Space Grotesk',Arial,sans-serif;letter-spacing:.17em;color:var(--cnav-muted)}
.cnav-panel{display:flex;align-items:center;justify-content:flex-end;gap:18px;flex:1;min-width:0}
.cnav-links{position:relative;isolation:isolate;display:flex;align-items:center;gap:2px;padding:4px;border:1px solid #65745555;background:#080f0b80;border-radius:100px;flex-shrink:0}
.cnav-link{position:relative;z-index:1;display:flex;align-items:center;gap:5px;min-height:40px;padding:10px 15px;color:#bac6b4;border-radius:100px;font-size:12px;white-space:nowrap;line-height:1.4;transition:color .18s}
.cnav-link-label{position:relative}.cnav-link-arrow{display:inline-block;font-size:13px;line-height:1;max-width:0;opacity:0;transform:translate(-3px,3px);transition:opacity .18s,transform .24s,max-width .24s;overflow:hidden}
.cnav-link[aria-current=page]{background:var(--cnav-lime);color:var(--cnav-ink)}
.cnav-links.is-enhanced .cnav-link{background:transparent;color:#bac6b4}
.cnav-links.is-enhanced .cnav-link.is-target{color:var(--cnav-ink)}
.cnav-link:hover .cnav-link-arrow,.cnav-link:focus-visible .cnav-link-arrow{max-width:14px;opacity:1;transform:translate(0,0)}
.cnav-slider{display:none;position:absolute;z-index:0;top:4px;bottom:4px;left:0;width:var(--cnav-slide-width,80px);transform:translateX(var(--cnav-slide-x,4px));background:var(--cnav-lime);border-radius:100px;box-shadow:0 2px 10px #ccea4940;transition:transform .42s cubic-bezier(.22,1.24,.4,1),width .36s cubic-bezier(.22,1.24,.4,1);pointer-events:none}
.cnav-links.is-enhanced .cnav-slider{display:block}
.cnav-languages{display:flex;align-items:center;padding:3px;gap:1px;border:1px solid #65745555;border-radius:100px;background:#121a12;flex-shrink:0}
.cnav-language{display:grid;place-items:center;min-width:30px;min-height:31px;padding:6px 9px;border-radius:100px;color:var(--cnav-muted);font-size:9px;line-height:1.3;white-space:nowrap;transition:background .2s,color .2s}
.cnav-language[aria-current=true]{background:#34402a;color:var(--cnav-lime);box-shadow:inset 0 0 0 1px #82916d44}
.cnav-language:hover{background:#39462e;color:var(--cnav-text)}
.cnav-concepts{display:flex;align-items:center;gap:9px;min-height:38px;color:var(--cnav-muted);font-size:9px;white-space:nowrap;line-height:1.4}
.cnav-concepts-arrow{display:inline-block;font-size:15px;color:var(--cnav-lime);transition:transform .23s}
.cnav-concepts:hover{color:var(--cnav-text)}.cnav-concepts:hover .cnav-concepts-arrow{transform:translate(3px,-3px)}
.cnav-toggle{display:none;align-items:center;justify-content:center;gap:10px;min-width:83px;min-height:42px;padding:10px 13px;background:#d8f266;color:var(--cnav-ink);border:0;border-radius:100px;font:inherit;font-size:11px}
.cnav-toggle-icon{position:relative;display:block;width:16px;height:15px}
.cnav-toggle-icon:before,.cnav-toggle-icon:after{content:'';position:absolute;left:0;right:0;height:1px;background:currentColor;transition:transform .23s,top .23s}
.cnav-toggle-icon:before{top:4px}.cnav-toggle-icon:after{top:10px}
.cnav-toggle[aria-expanded=true] .cnav-toggle-icon:before{top:7px;transform:rotate(45deg)}.cnav-toggle[aria-expanded=true] .cnav-toggle-icon:after{top:7px;transform:rotate(-45deg)}
.cnav-shell a:focus-visible,.cnav-shell button:focus-visible,.cnav-series a:focus-visible,.cnav-series button:focus-visible{outline:2px solid var(--cnav-lime);outline-offset:4px}
.cnav-shell .cnav-link.is-target:focus-visible{outline-color:#fff}.cnav-series [hidden]{display:none!important}
.cnav-series{position:relative;z-index:24;margin:0 var(--gutter,5vw) 36px;color:var(--cnav-text)}
.cnav-series-toolbar{display:flex;align-items:stretch;justify-content:space-between;gap:24px}
.cnav-series-trigger{display:flex;align-items:center;justify-content:space-between;gap:35px;text-align:left;min-width:320px;max-width:530px;min-height:95px;padding:20px 24px;background:linear-gradient(135deg,#2e3c27,#202a1e);border:1px solid #67784e;border-radius:18px;color:var(--cnav-text);transition:border-color .2s,background .2s,box-shadow .2s}
.cnav-series-trigger:hover,.cnav-series-trigger[aria-expanded=true]{border-color:var(--cnav-lime);box-shadow:0 0 0 3px #d8f2660d}
.cnav-series-trigger-copy{display:flex;flex-direction:column;gap:8px;min-width:0}
.cnav-series-eyebrow{font-size:9px;letter-spacing:.1em;line-height:1.4;color:var(--cnav-muted)}
.cnav-series-current{font-size:25px;font-weight:500;line-height:1.3;letter-spacing:-.035em;overflow-wrap:anywhere}
.cnav-series-chevron{display:grid;place-items:center;flex-shrink:0;width:35px;height:35px;border:1px solid #7d8d6533;border-radius:50%;background:#0e180d88;color:var(--cnav-lime);font-size:25px;line-height:1;transition:transform .3s,background .25s}
.cnav-series-trigger[aria-expanded=true] .cnav-series-chevron{transform:rotate(180deg);background:#3c4b2e}
.cnav-page-links{display:flex;align-items:center;gap:12px}
.cnav-page-link{position:relative;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;min-width:160px;min-height:60px;padding:16px 20px;border:1px solid #43513b;border-radius:16px;background:#121b13;color:#c0cbbc;font-size:13px;transition:background .25s,border-color .25s,transform .25s}
.cnav-page-number{font-size:9px;color:#92a07f;line-height:1}
.cnav-page-label{white-space:nowrap}.cnav-page-arrow{font-size:18px;line-height:1;display:inline-block;transition:transform .23s}
.cnav-page-link:hover{border-color:var(--cnav-lime);background:#25321d;transform:translateY(-2px)}.cnav-page-link:hover .cnav-page-arrow{transform:translateY(3px)}
.cnav-page-link.is-current{border-color:#9ba96c;background:#303c23;color:var(--cnav-lime)}.cnav-page-link.is-current .cnav-page-number{color:#c0ce9b}
.cnav-series-panel{position:absolute;top:calc(100% + 13px);left:0;right:0;padding:25px;background:#172017f5;backdrop-filter:blur(25px);border:1px solid #68785499;border-radius:22px;box-shadow:0 30px 80px #0008;transform-origin:top center;animation:cnav-panel-in .22s ease-out}
.cnav-series-panel-label{font-size:10px;letter-spacing:.08em;color:var(--cnav-muted);margin:0 0 19px!important}
.cnav-series-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.cnav-series-item{position:relative;display:grid;grid-template-columns:1fr auto;gap:18px 15px;min-height:153px;padding:18px 17px;border:1px solid #445339;border-radius:13px;background:#202d1d;overflow:hidden;transition:background .23s,border-color .23s,transform .23s}
.cnav-series-index{grid-column:1;font-size:11px;color:#96a383;line-height:1}.cnav-series-item-arrow{grid-column:2;grid-row:1;font-size:19px;color:var(--cnav-lime);display:inline-block;transition:transform .23s}
.cnav-series-name{grid-column:1/-1;grid-row:2;font-size:18px;line-height:1.35;letter-spacing:-.025em;align-self:center;font-weight:500}
.cnav-series-meta{grid-column:1/-1;grid-row:3;font-size:9px;line-height:1.4;color:var(--cnav-muted)}
.cnav-series-item:hover{transform:translateY(-3px);background:#35432a;border-color:var(--cnav-lime);color:var(--cnav-text)}.cnav-series-item:hover .cnav-series-item-arrow{transform:translate(3px,-3px)}
.cnav-series-item[aria-current=page]{background:var(--cnav-lime);border-color:var(--cnav-lime);color:var(--cnav-ink)}.cnav-series-item[aria-current=page] .cnav-series-index,.cnav-series-item[aria-current=page] .cnav-series-meta,.cnav-series-item[aria-current=page] .cnav-series-item-arrow{color:#3c4b28}
@keyframes cnav-panel-in{from{opacity:0;transform:translateY(-8px) scale(.99)}to{opacity:1;transform:translateY(0) scale(1)}}
@media(max-width:1220px){.cnav-shell{gap:15px;padding:13px 16px;width:calc(100% - 40px);min-height:76px}.cnav-panel{gap:12px}.cnav-brand-name{font-size:21px}.cnav-brand-caption{font-size:5.8px}.cnav-link{padding:10px 12px;font-size:11px}.cnav-language{font-size:8px;padding:6px 7px;min-width:27px}.cnav-concepts{font-size:8px;gap:5px}.cnav-series-trigger{min-width:280px;max-width:440px}.cnav-series-current{font-size:22px}.cnav-page-link{min-width:145px;padding:15px 16px;font-size:12px}.cnav-series-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.cnav-series-item{min-height:135px}}
@media(max-width:1020px){.cnav-shell{top:10px;width:calc(100% - 36px);margin:10px auto 12px;padding:14px 17px;min-height:76px;justify-content:space-between;border-radius:22px}.cnav-brand-name{font-size:24px}.cnav-brand-caption{font-size:6.5px}.cnav-toggle{display:flex}.cnav-panel{display:none;position:absolute;top:calc(100% + 10px);left:0;right:0;flex-direction:column;align-items:stretch;gap:22px;max-height:calc(100dvh - 122px);overflow:auto;padding:20px;background:#172017f7;border:1px solid #67764e88;border-radius:22px;box-shadow:0 25px 60px #0009;backdrop-filter:blur(25px)}.cnav-panel.is-open{display:flex;animation:cnav-panel-in .22s ease-out}.cnav-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;background:transparent;border:0;padding:0;border-radius:0}.cnav-link{min-height:60px;padding:17px 18px;font-size:15px;border:1px solid #3e5135;border-radius:15px;justify-content:space-between;background:#22311e}.cnav-link-arrow{opacity:1;max-width:20px;transform:none;font-size:19px;overflow:visible}.cnav-slider,.cnav-links.is-enhanced .cnav-slider{display:none}.cnav-links.is-enhanced .cnav-link[aria-current=page],.cnav-link[aria-current=page]{background:var(--cnav-lime);color:var(--cnav-ink);border-color:var(--cnav-lime)}.cnav-links.is-enhanced .cnav-link{color:#d0dbca;background:#22311e}.cnav-links.is-enhanced .cnav-link.is-target:not([aria-current=page]){color:#d0dbca}.cnav-languages{align-self:flex-start;padding:4px;gap:5px}.cnav-language{min-height:37px;min-width:45px;font-size:11px;padding:9px 13px}.cnav-concepts{align-self:flex-start;font-size:11px;gap:14px}.cnav-concepts-arrow{font-size:18px}.cnav-series{margin-bottom:30px}.cnav-series-toolbar{gap:15px}.cnav-series-trigger{min-width:250px;max-width:45%;min-height:90px;padding:18px 20px;gap:20px}.cnav-series-current{font-size:20px}.cnav-page-link{min-width:0;font-size:11px;gap:9px;padding:14px 15px;min-height:56px}.cnav-page-links{gap:8px}}
@media(max-width:700px){.cnav-shell{width:calc(100% - 24px);top:8px;margin:8px auto 10px;min-height:71px;padding:12px 14px;border-radius:20px;gap:14px}.cnav-brand-name{font-size:22px}.cnav-brand-caption{font-size:5.8px}.cnav-toggle{min-width:77px;min-height:40px;padding:9px 12px;gap:9px;font-size:10px}.cnav-panel{padding:17px;gap:19px;max-height:calc(100dvh - 108px);border-radius:20px;top:calc(100% + 8px)}.cnav-links{grid-template-columns:1fr;gap:8px}.cnav-link{min-height:53px;padding:16px;font-size:15px;border-radius:13px}.cnav-language{font-size:10px;min-height:38px;min-width:47px}.cnav-concepts{font-size:10px}.cnav-series{margin:0 22px 26px}.cnav-series-toolbar{flex-direction:column;gap:13px}.cnav-series-trigger{min-width:0;max-width:none;width:100%;min-height:82px;padding:17px 20px;border-radius:17px;gap:24px}.cnav-series-current{font-size:23px;line-height:1.35}.cnav-series-eyebrow{font-size:8px;letter-spacing:.08em}.cnav-series-trigger-copy{gap:7px}.cnav-series-chevron{width:34px;height:34px;font-size:24px}.cnav-page-links{display:grid;grid-template-columns:1fr 1fr;gap:9px}.cnav-page-link{display:grid;grid-template-columns:auto 1fr auto;gap:9px;padding:15px 14px;font-size:11px;min-height:53px;border-radius:14px}.cnav-page-label{white-space:normal;line-height:1.5}.cnav-page-number{font-size:8px}.cnav-page-arrow{font-size:16px}.cnav-series-panel{top:calc(100% + 10px);padding:16px;max-height:65dvh;overflow-y:auto;border-radius:18px}.cnav-series-panel-label{font-size:9px;margin-bottom:13px!important}.cnav-series-grid{grid-template-columns:minmax(0,1fr);gap:8px}.cnav-series-item{min-height:75px;display:grid;grid-template-columns:24px minmax(0,1fr) 20px;gap:4px 13px;padding:15px 16px;border-radius:12px}.cnav-series-index{grid-column:1;grid-row:1/span 2;align-self:center;font-size:10px}.cnav-series-name{grid-column:2;grid-row:1;font-size:17px;line-height:1.35}.cnav-series-item-arrow{grid-column:3;grid-row:1/span 2;align-self:center;font-size:20px}.cnav-series-meta{grid-column:2;grid-row:2;font-size:8px}.cnav-series-item:hover{transform:none}}
@media(max-width:700px){.index-toolbar{top:calc(var(--cnav-height) + 20px)}}
@media(prefers-reduced-motion:reduce){.cnav-slider,.cnav-link,.cnav-link-arrow,.cnav-language,.cnav-concepts-arrow,.cnav-toggle-icon:before,.cnav-toggle-icon:after,.cnav-series-trigger,.cnav-series-chevron,.cnav-page-link,.cnav-page-arrow,.cnav-series-item,.cnav-series-item-arrow{transition:none}.cnav-panel.is-open,.cnav-series-panel{animation:none}.cnav-page-link:hover,.cnav-series-item:hover{transform:none}}