header,.site-shell header{height:auto;min-height:90px;flex-wrap:wrap}.topic-nav{display:flex;flex-wrap:wrap;gap:8px 18px;width:100%;border-top:1px solid var(--line);padding-top:12px}.topic-nav a{display:inline-flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:7px;font-size:14px;color:#b8c7d9;line-height:1.4}.topic-nav a[aria-current=page]{color:#8de2f1;background:#193348;border:1px solid #478196}.topic-nav a:hover{background:#142335;color:#eef4fa}.page-index{padding:16px 20px;margin:0 0 30px;border:1px solid var(--line);border-radius:9px;background:#101925}.page-index summary{font-size:15px;color:#9fe2ef;cursor:pointer}.page-index nav{display:flex;flex-wrap:wrap;gap:8px 16px;padding-top:12px}.page-index a{display:flex;align-items:center;min-height:44px;font-size:14px;color:#c3d0e0;text-decoration:underline;text-underline-offset:4px}h2[id]{scroll-margin-top:25px}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding-bottom:55px}.topic-card{display:block;padding:28px;border:1px solid var(--line);border-radius:12px;background:#101925}.topic-card:hover{border-color:#68d7ed;text-decoration:none}.topic-card>span{font:12px monospace;color:#68d7ed}.topic-card h2{font-size:28px}.topic-card p{font-size:17px;line-height:1.8;color:#b0bed0}.topic-card:focus-visible{outline:2px solid #68d7ed;outline-offset:5px}@media(max-width:650px){.topic-grid{grid-template-columns:1fr}.topic-nav,header .topic-nav{flex-wrap:nowrap;overflow-x:auto;max-width:100%;gap:8px;padding-bottom:10px;overscroll-behavior-x:contain}.topic-nav a{white-space:nowrap;flex-shrink:0;font-size:13px}.page-index nav{flex-direction:column;gap:5px}.topic-card{padding:23px}}
/* Compact page navigation with room for additional topics. */
header .grouped-navigation{overflow:visible;flex-wrap:wrap;align-items:center;gap:8px 15px}.grouped-navigation>a{flex-shrink:0}.theme-menu{position:relative;margin-left:auto}.theme-menu>summary{display:flex;align-items:center;gap:18px;list-style:none;cursor:pointer;padding:10px 15px;border:1px solid #714529;background:#261a13;border-radius:6px;color:#ffad7c;font-size:14px;min-height:44px}.theme-menu>summary::-webkit-details-marker{display:none}.theme-menu>summary:after{content:'+';font-size:20px}.theme-menu[open]>summary:after{content:'−'}.theme-panel{position:absolute;right:0;top:calc(100% + 12px);z-index:20;width:min(780px,85vw);padding:25px;background:#161311;border:1px solid #60402a;border-radius:10px;box-shadow:0 18px 65px #000b}.theme-panel label{display:block;font-size:14px;color:#ded0c4;margin-bottom:8px}.theme-panel input{display:block;width:100%;min-height:46px;background:#0c0c0c;border:1px solid #57402e;border-radius:6px;color:#f5eadd;font-size:16px;padding:12px}.theme-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:22px}.theme-group h2{font-size:14px;color:#e9b08c;line-height:1.6;margin:0 0 12px;letter-spacing:0;font-weight:500}.theme-group a{display:flex;white-space:normal;font-size:14px;min-height:44px;padding:10px;line-height:1.6}.theme-search-status{font-size:12px;color:#b5afa9;margin:18px 0 0}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;padding:18px 0 0;font-size:13px;color:#a99c91}.breadcrumbs a{min-height:36px;display:inline-flex;align-items:center;color:#dfb499}.breadcrumbs span[aria-current]{color:#e3d8ce}.topic-pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;border-top:1px solid var(--line);padding:28px 0 40px}.topic-pager a{display:flex;align-items:center;min-height:64px;border:1px solid #453224;padding:18px;color:#ffad7c;background:#16120f;border-radius:8px;font-size:15px;line-height:1.6}.topic-pager a:last-child{justify-content:flex-end;text-align:right}.theme-group[hidden],.theme-group a[hidden]{display:none!important}@media(max-width:650px){header .grouped-navigation{overflow:visible;flex-wrap:wrap;gap:5px}.grouped-navigation>a{font-size:13px;padding:8px}.theme-menu{position:static;margin-left:auto}.theme-menu>summary{font-size:13px;padding:8px 10px}.theme-panel{position:relative;top:auto;right:auto;width:100%;margin-top:14px;box-shadow:none;padding:18px}.theme-menu[open]{width:100%;margin-left:0}.theme-groups{grid-template-columns:1fr;gap:16px}.theme-group a{padding:10px 12px}.topic-pager{grid-template-columns:1fr;gap:12px}.breadcrumbs{font-size:12px}}
.reading-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:40px;align-items:start}.page-content{min-width:0}.section-rail{position:sticky;top:24px;padding:0;border:0;min-width:0;margin:32px 0;max-height:calc(100vh - 48px);overflow-y:auto;scrollbar-width:thin}.section-index{border:1px solid #453224;border-radius:9px;background:#14110f;padding:16px}.section-index summary{font-size:14px;color:#ffad7c;line-height:1.6;min-height:40px;cursor:pointer;list-style:none}.section-index summary::-webkit-details-marker{display:none}.section-index nav{display:flex;flex-direction:column;gap:6px;margin-top:12px}.section-index nav a{display:block;font-size:13px;line-height:1.6;color:#b5afa9;padding:10px 12px;min-height:44px;border-left:2px solid transparent;border-radius:0 5px 5px 0;text-decoration:none;overflow-wrap:anywhere}.section-index nav a:hover{color:#f3dfd0;background:#261a13}.section-index nav a[aria-current=location]{color:#ffad7c;background:#291b12;border-left-color:#ff965e}.section-top{display:block;color:#c9a98e;font-size:12px;margin-top:20px;padding:12px 0;border-top:1px solid #35291f;min-height:44px}.section-index a:focus-visible{outline:2px solid #ffad7c;outline-offset:2px}main:has(.reading-layout){max-width:1600px}.page-content .workspace{grid-template-columns:minmax(0,1fr)}.page-content .workspace>aside{border-left:0;border-top:1px solid var(--line)}.page-content .workspace .modes{grid-template-columns:repeat(3,minmax(0,1fr))}.page-content .interactive-visual{grid-template-columns:1fr}.page-content .interactive-visual svg{max-width:650px;margin:auto}.page-content .sensor-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.page-content .explanation{gap:28px}.page-content .comms-calculator{gap:25px}@media(max-width:1099px){.reading-layout{display:block}.section-rail{position:static;margin:20px 0;max-height:none;overflow:visible}.section-index summary:after{content:'+';float:right;font-size:20px}.section-index[open] summary:after{content:'−'}.section-index nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.page-content .interactive-visual{grid-template-columns:1fr 1fr}}@media(max-width:750px){.section-index nav{grid-template-columns:1fr}.page-content .sensor-grid,.page-content .interactive-visual,.page-content .workspace .modes{grid-template-columns:1fr}.section-index{padding:14px}.reading-layout{gap:0}}
.section-current{font-size:12px;line-height:1.6;color:#d4b399;margin:0 0 10px;padding-bottom:12px;border-bottom:1px solid #35291f;overflow-wrap:anywhere}.section-rail{overscroll-behavior:contain;scroll-padding:12px}@media(max-width:1099px){.section-rail{position:sticky;top:10px;z-index:8;max-height:calc(100dvh - 30px);overflow-y:auto;margin:12px 0 24px;background:#14110f;border-radius:9px;box-shadow:0 6px 24px #0006}.section-index{padding:10px 14px}.section-index:not([open]) .section-current{display:none}.section-index summary{min-height:44px;display:flex;justify-content:space-between;align-items:center;gap:12px}.section-index[open] nav{padding-bottom:8px}.section-index summary:after{float:none}.section-current{font-size:13px}}
.section-mobile-current{display:none}@media(max-width:1099px){.section-index summary{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:3px 12px}.section-index summary:after{grid-column:2;grid-row:1/3}.section-mobile-current{display:block;grid-column:1;font-size:12px;color:#cfb197;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;font-weight:400}}
.development-notice{width:min(480px,calc(100% - 36px));max-height:calc(100dvh - 40px);overflow:auto;padding:30px;background:#171310;color:#f3e8df;border:1px solid #76482b;border-radius:12px;box-shadow:0 20px 90px #0009}.development-notice::backdrop{background:#000b;backdrop-filter:blur(4px)}.development-label{font-size:12px;color:#ffad7c;letter-spacing:2px}.development-notice h2{font-size:29px;font-weight:500;line-height:1.25;letter-spacing:-.5px;margin:20px 0 16px}.development-notice p{font-size:16px;line-height:1.85;color:#c5b6aa;margin:0 0 24px}.development-notice button{background:#ff965e;color:#1b0e06;border:0;border-radius:6px;padding:13px 20px;min-height:48px;font-size:15px;font-weight:600;cursor:pointer;width:100%}.development-notice button:focus-visible{outline:2px solid #ffe0c8;outline-offset:5px}@media(max-width:480px){.development-notice{padding:24px}.development-notice h2{font-size:26px}}