:root{--font-sans: "DM Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--font-serif: "Instrument Serif", "Times New Roman", Georgia, serif;--font-mono: "DM Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;--topbar-h: 60px;--sidebar-w: 268px;--toc-w: 216px;--content-w: 720px;--r-xs: 6px;--r-sm: 8px;--r-md: 12px;--r-lg: 16px;--r-xl: 20px;--ease: cubic-bezier(.22, .61, .36, 1);--dur: .22s;--dur-slow: .42s}:root,html.dark{color-scheme:dark;--bg: #000000;--bg-soft: #080808;--bg-raised: #0e0e0e;--bg-raised-2: #151515;--bg-hover: rgba(255, 255, 255, .05);--bg-active: rgba(255, 255, 255, .075);--bg-blur: rgba(0, 0, 0, .72);--line: rgba(255, 255, 255, .08);--line-soft: rgba(255, 255, 255, .055);--line-strong: rgba(255, 255, 255, .15);--fg: #f2f2f2;--text: #bcbcbc;--muted: #9a9a9a;--dim: #666666;--faint: #3a3a3a;--invert-bg: #f0f0f0;--invert-fg: #000000;--btn-bg: rgb(37, 37, 37);--btn-outline: rgb(89, 89, 89);--btn-border: #000;--shadow-pop: 0 24px 80px rgba(0, 0, 0, .7), 0 2px 10px rgba(0, 0, 0, .5);--scrim: rgba(0, 0, 0, .62);--mark: rgba(255, 255, 255, .16)}html.light{color-scheme:light;--bg: #f4f4f3;--bg-soft: #eeeeed;--bg-raised: #fbfbfa;--bg-raised-2: #ffffff;--bg-hover: rgba(0, 0, 0, .04);--bg-active: rgba(0, 0, 0, .065);--bg-blur: rgba(244, 244, 243, .78);--line: rgba(0, 0, 0, .09);--line-soft: rgba(0, 0, 0, .06);--line-strong: rgba(0, 0, 0, .17);--fg: #0d0d0d;--text: #333333;--muted: #646464;--dim: #8f8f8f;--faint: #c9c9c7;--invert-bg: #111111;--invert-fg: #f4f4f3;--btn-bg: #ffffff;--btn-outline: rgba(0, 0, 0, .16);--btn-border: rgba(0, 0, 0, .02);--shadow-pop: 0 24px 70px rgba(0, 0, 0, .16), 0 2px 8px rgba(0, 0, 0, .08);--scrim: rgba(20, 20, 20, .28);--mark: rgba(0, 0, 0, .1)}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--topbar-h) + 24px);background:var(--bg)}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:15px;line-height:1.7;font-optical-sizing:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;overflow-x:hidden}html.fd-switching *,html.fd-switching *:before,html.fd-switching *:after{transition:none!important}a{color:inherit;text-decoration:none}img,svg,video{display:block;max-width:100%}button{font:inherit;color:inherit}input{font:inherit}::selection{background:var(--mark);color:var(--fg)}:focus-visible{outline:2px solid var(--fg);outline-offset:2px;border-radius:var(--r-xs)}*{scrollbar-width:thin;scrollbar-color:var(--faint) transparent}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--faint);border-radius:8px;border:2px solid transparent;background-clip:content-box}::-webkit-scrollbar-track{background:transparent}.fd-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.fd-btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;height:2.25rem;padding:0 .95rem;border-radius:var(--r-md);background:var(--btn-bg);color:var(--fg);border:1px solid var(--btn-border);outline:1px solid var(--btn-outline);outline-offset:0;font-family:var(--font-serif);font-size:1.08rem;line-height:1;white-space:nowrap;cursor:pointer;transition:background .35s ease-in-out,color .35s ease-in-out,outline-color .35s ease-in-out}.fd-btn:hover{background:var(--invert-bg);color:var(--invert-fg);outline-color:transparent}.fd-btn svg{width:.9rem;height:.9rem}.fd-icon-btn{display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;flex:0 0 auto;border-radius:var(--r-md);border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;transition:color var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease)}.fd-icon-btn:hover{color:var(--fg);background:var(--bg-hover);border-color:var(--line-strong)}.fd-icon-btn svg{width:1.05rem;height:1.05rem}.fd-kbd,kbd{display:inline-flex;align-items:center;justify-content:center;min-width:1.45rem;height:1.45rem;padding:0 .36rem;border-radius:var(--r-xs);border:1px solid var(--line-strong);border-bottom-width:2px;background:var(--bg-raised);color:var(--fg);font-family:var(--font-mono);font-size:.72rem;font-weight:500;line-height:1;vertical-align:.08em;white-space:nowrap}.fd-badge{display:inline-flex;align-items:center;gap:.35rem;height:1.4rem;padding:0 .55rem;border-radius:var(--r-xs);border:1px solid var(--line-strong);color:var(--fg);font-family:var(--font-mono);font-size:.66rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;line-height:1;white-space:nowrap;vertical-align:.15em}.fd-badge.is-soft{color:var(--muted);border-color:var(--line)}.fd-label{font-family:var(--font-mono);font-size:.68rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}.fd-doc{color:var(--text);font-size:15.5px;line-height:1.75;overflow-wrap:break-word}.fd-doc>:first-child{margin-top:0}.fd-doc h1,.fd-doc h2,.fd-doc h3,.fd-doc h4{position:relative;color:var(--fg);scroll-margin-top:calc(var(--topbar-h) + 24px)}.fd-doc h1{font-family:var(--font-serif);font-weight:400;font-size:2.6rem;line-height:1.05;letter-spacing:-.01em;margin:0 0 1rem}.fd-doc h2{font-family:var(--font-serif);font-weight:400;font-size:2rem;line-height:1.12;letter-spacing:-.005em;margin:3.6rem 0 .9rem}.fd-doc h3{font-family:var(--font-sans);font-weight:600;font-size:1.05rem;line-height:1.4;letter-spacing:-.005em;margin:2.4rem 0 .6rem}.fd-doc h4{font-family:var(--font-mono);font-weight:500;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:2rem 0 .5rem}.fd-doc h2+h3{margin-top:1.4rem}.fd-doc .header-anchor{position:absolute;left:-.95em;top:0;padding-right:.3em;color:var(--dim);font-family:var(--font-mono);font-weight:400;opacity:0;text-decoration:none;transition:opacity var(--dur) var(--ease),color var(--dur) var(--ease);-webkit-user-select:none;user-select:none}.fd-doc .header-anchor:before{content:"#"}.fd-doc h2 .header-anchor{font-size:.6em;top:.5em;left:-1.1em}.fd-doc h3 .header-anchor{font-size:.85em}.fd-doc :is(h1,h2,h3,h4):hover .header-anchor,.fd-doc .header-anchor:focus{opacity:1}.fd-doc .header-anchor:hover{color:var(--fg)}.fd-doc p{margin:0 0 1.15rem}.fd-doc strong{color:var(--fg);font-weight:600}.fd-doc em{font-style:italic}.fd-doc a:not(.header-anchor):not(.fd-card):not(.fd-btn){color:var(--fg);text-decoration:underline;text-decoration-color:var(--line-strong);text-decoration-thickness:1px;text-underline-offset:.22em;transition:text-decoration-color var(--dur) var(--ease)}.fd-doc a:not(.header-anchor):not(.fd-card):not(.fd-btn):hover{text-decoration-color:var(--fg)}.fd-doc ul,.fd-doc ol{margin:0 0 1.25rem;padding-left:1.35rem}.fd-doc li{margin:.38rem 0;padding-left:.2rem}.fd-doc li>p{margin-bottom:.5rem}.fd-doc ul{list-style:none;padding-left:1.2rem}.fd-doc ul>li{position:relative}.fd-doc ul>li:before{content:"";position:absolute;left:-1.05rem;top:.72em;width:5px;height:5px;border-radius:1.5px;background:var(--dim)}.fd-doc ol>li::marker{color:var(--dim);font-family:var(--font-mono);font-size:.85em}.fd-doc li ul,.fd-doc li ol{margin:.35rem 0 .4rem}.fd-doc hr{border:0;border-top:1px solid var(--line);margin:3rem 0}.fd-doc blockquote{margin:1.5rem 0;padding:.1rem 0 .1rem 1.1rem;border-left:2px solid var(--line-strong);color:var(--muted)}.fd-doc blockquote p:last-child{margin-bottom:0}.fd-doc :not(pre)>code{font-family:var(--font-mono);font-size:.84em;color:var(--fg);background:var(--bg-raised-2);border:1px solid var(--line);border-radius:var(--r-xs);padding:.12em .38em;white-space:nowrap}.fd-doc a code{text-decoration:none}.fd-doc .fd-table{width:100%;overflow-x:auto;margin:1.5rem 0 1.8rem;border:1px solid var(--line);border-radius:var(--r-md);-webkit-overflow-scrolling:touch}.fd-doc table{width:100%;border-collapse:separate;border-spacing:0;font-size:.9rem;line-height:1.55}.fd-doc th{text-align:left;font-family:var(--font-mono);font-weight:500;font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);background:var(--bg-soft);padding:.7rem 1rem;border-bottom:1px solid var(--line);white-space:nowrap}.fd-doc td{padding:.7rem 1rem;border-bottom:1px solid var(--line-soft);vertical-align:top;color:var(--text)}.fd-doc tr:last-child td{border-bottom:0}.fd-doc td:first-child{color:var(--fg)}.fd-doc td kbd+kbd,.fd-doc p kbd+kbd{margin-left:.2rem}.fd-doc img{border-radius:var(--r-lg);border:1px solid var(--line);margin:1.6rem 0;height:auto}.fd-doc figure{margin:1.8rem 0}.fd-doc figure img{margin:0}.fd-doc figcaption{margin-top:.7rem;font-size:.82rem;color:var(--dim)}.fd-doc .custom-block{position:relative;margin:1.6rem 0;padding:1rem 1.15rem 1rem 3rem;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-raised);font-size:.94rem;line-height:1.65}.fd-doc .custom-block:before{content:"";position:absolute;left:1.1rem;top:1.14rem;width:1.05rem;height:1.05rem;background:var(--muted);-webkit-mask:var(--fd-icon) center / contain no-repeat;mask:var(--fd-icon) center / contain no-repeat}.fd-doc .custom-block p{margin:0 0 .6rem}.fd-doc .custom-block p:last-child{margin-bottom:0}.fd-doc .custom-block .custom-block-title{font-family:var(--font-mono);font-weight:500;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--fg);margin-bottom:.35rem}.fd-doc .custom-block ul{margin-bottom:.4rem}.fd-doc .custom-block.tip{--fd-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M15 14c.2-1 .7-1.7 1.5-2.5 1-.9 1.5-2.2 1.5-3.5A6 6 0 0 0 6 8c0 1 .2 2.2 1.5 3.5.7.7 1.3 1.5 1.5 2.5'/%3E%3Cpath d='M9 18h6'/%3E%3Cpath d='M10 22h4'/%3E%3C/svg%3E")}.fd-doc .custom-block.info{--fd-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='6'/%3E%3Cpath d='M12 16v-4'/%3E%3Cpath d='M12 8h.01'/%3E%3C/svg%3E")}.fd-doc .custom-block.warning{--fd-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m21.7 18-8-14a2 2 0 0 0-3.5 0l-8 14A2 2 0 0 0 4 21h16a2 2 0 0 0 1.7-3Z'/%3E%3Cpath d='M12 9v4'/%3E%3Cpath d='M12 17h.01'/%3E%3C/svg%3E");border-color:var(--line-strong)}.fd-doc .custom-block.warning:before,.fd-doc .custom-block.danger:before{background:var(--fg)}.fd-doc .custom-block.danger{--fd-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7.9 2h8.2L22 7.9v8.2L16.1 22H7.9L2 16.1V7.9z'/%3E%3Cpath d='M12 8v4'/%3E%3Cpath d='M12 16h.01'/%3E%3C/svg%3E");border-color:var(--line-strong)}.fd-doc details.custom-block{padding:0}.fd-doc details.custom-block:before{display:none}.fd-doc details.custom-block>summary{list-style:none;cursor:pointer;padding:.95rem 1.15rem;color:var(--fg);font-weight:500;display:flex;align-items:center;justify-content:space-between;gap:1rem}.fd-doc details.custom-block>summary::-webkit-details-marker{display:none}.fd-doc details.custom-block>summary:after{content:"";width:.9rem;height:.9rem;flex:0 0 auto;background:var(--dim);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") center / contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") center / contain no-repeat;transition:transform var(--dur) var(--ease)}.fd-doc details.custom-block[open]>summary:after{transform:rotate(180deg)}.fd-doc details.custom-block>:not(summary){margin-left:1.15rem;margin-right:1.15rem}.fd-doc details.custom-block>:last-child{margin-bottom:1rem}.fd-doc .fd-steps>ol{list-style:none;counter-reset:fd-step;padding-left:0;margin:1.6rem 0 2rem}.fd-doc .fd-steps>ol>li{position:relative;counter-increment:fd-step;padding:0 0 1.4rem 2.85rem;margin:0}.fd-doc .fd-steps>ol>li:before{content:counter(fd-step);position:absolute;left:0;top:.05rem;width:1.75rem;height:1.75rem;border-radius:var(--r-sm);border:1px solid var(--line-strong);background:var(--bg-raised);color:var(--fg);font-family:var(--font-mono);font-size:.74rem;display:flex;align-items:center;justify-content:center}.fd-doc .fd-steps>ol>li:after{content:"";position:absolute;left:calc(.875rem - .5px);top:2.2rem;bottom:.35rem;width:1px;background:var(--line)}.fd-doc .fd-steps>ol>li:last-child{padding-bottom:.2rem}.fd-doc .fd-steps>ol>li:last-child:after{display:none}.fd-doc .fd-steps>ol>li>p:first-child,.fd-doc .fd-steps>ol>li>strong:first-child{color:var(--fg)}.fd-doc div[class*=language-]{position:relative;margin:1.4rem 0 1.6rem;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-soft);overflow:hidden}.fd-doc div[class*=language-] pre{margin:0;padding:1.1rem 1.2rem;overflow-x:auto;background:transparent!important;font-family:var(--font-mono);font-size:.82rem;line-height:1.75;-moz-tab-size:2;tab-size:2}.fd-doc div[class*=language-] code{font-family:inherit;display:block;width:fit-content;min-width:100%}.fd-doc .shiki span{color:var(--shiki-dark)}html.light .fd-doc .shiki span{color:var(--shiki-light)}.fd-doc div[class*=language-]>span.lang{position:absolute;top:.6rem;right:3rem;font-family:var(--font-mono);font-size:.64rem;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);pointer-events:none;transition:opacity var(--dur) var(--ease)}.fd-doc div[class*=language-]>button.copy{position:absolute;top:.45rem;right:.45rem;width:2rem;height:2rem;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--bg-raised) center / .95rem no-repeat;cursor:pointer;opacity:.85;transition:opacity var(--dur) var(--ease),border-color var(--dur) var(--ease)}.fd-doc div[class*=language-]>button.copy:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--muted);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect width='13' height='13' x='9' y='9' rx='3'/%3E%3Cpath d='M5 15c-1.1 0-2-.9-2-2V5c0-1.1.9-2 2-2h8c1.1 0 2 .9 2 2'/%3E%3C/svg%3E") center / .95rem no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect width='13' height='13' x='9' y='9' rx='3'/%3E%3Cpath d='M5 15c-1.1 0-2-.9-2-2V5c0-1.1.9-2 2-2h8c1.1 0 2 .9 2 2'/%3E%3C/svg%3E") center / .95rem no-repeat}.fd-doc div[class*=language-]>button.copy:hover{opacity:1;border-color:var(--line-strong)}.fd-doc div[class*=language-]>button.copy:hover:before{background:var(--fg)}.fd-doc div[class*=language-]>button.copy.copied:before{background:var(--fg);-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E")}.fd-doc div[class*=language-]:hover>span.lang{opacity:0}.fd-doc .fd-two{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1.6rem 0}@media (max-width: 640px){.fd-doc{font-size:15px}.fd-doc h2{font-size:1.75rem;margin-top:3rem}.fd-doc .header-anchor{display:none}.fd-doc .custom-block{padding:.95rem 1rem .95rem 2.7rem}.fd-doc .custom-block:before{left:.95rem}.fd-doc .fd-two{grid-template-columns:1fr}.fd-doc div[class*=language-]{border-radius:var(--r-md);margin-left:-4px;margin-right:-4px}}.fd-wordmark{display:inline-flex;align-items:center;color:inherit;line-height:0}.fd-wordmark svg{height:100%;width:auto;display:block}.fd-top{position:sticky;top:0;z-index:50;height:var(--topbar-h);background:var(--bg-blur);-webkit-backdrop-filter:saturate(140%) blur(14px);backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid var(--line)}.fd-top.is-home{border-bottom-color:transparent;background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;position:absolute;left:0;right:0}.fd-top-in{height:100%;display:flex;align-items:center;gap:.75rem;padding:0 1.25rem;max-width:1600px;margin:0 auto}.fd-top-menu{display:none}.fd-top-brand{display:flex;align-items:center;gap:.7rem;color:var(--fg);flex:0 0 auto;margin-right:.6rem;width:calc(var(--sidebar-w) - 2.75rem)}.fd-top.is-home .fd-top-brand{width:auto;margin-right:1.4rem}.fd-top-mark{height:1.15rem;width:auto}.fd-top-docs{font-family:var(--font-mono);font-size:.7rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding-left:.7rem;border-left:1px solid var(--line-strong);line-height:1}.fd-top-search{display:flex;align-items:center;gap:.6rem;width:100%;max-width:300px;height:2.25rem;padding:0 .45rem 0 .75rem;border-radius:var(--r-md);border:1px solid var(--line);background:var(--bg-raised);color:var(--dim);font-size:.86rem;cursor:pointer;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease)}.fd-top-search:hover{border-color:var(--line-strong);color:var(--muted)}.fd-top-search>.fd-icon{width:.95rem;height:.95rem;flex:0 0 auto}.fd-top-search-txt{flex:1;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fd-top-search-keys{display:flex;gap:.2rem}.fd-top-search-keys kbd{height:1.3rem;min-width:1.3rem;font-size:.66rem;border-bottom-width:1px;color:var(--muted)}.fd-top-links{display:flex;align-items:center;gap:1.4rem;margin-left:auto;padding-right:.6rem}.fd-top-links a{font-size:.86rem;color:var(--muted);transition:color var(--dur) var(--ease)}.fd-top-links a:hover{color:var(--fg)}.fd-top-end{display:flex;align-items:center;gap:.5rem}.fd-top-search-sm{display:none}.fd-top-cta{margin-left:.25rem}@media (max-width: 1100px){.fd-top-links{display:none}.fd-top-end{margin-left:auto}}@media (max-width: 960px){.fd-top-menu{display:inline-flex}.fd-top-brand,.fd-top.is-home .fd-top-brand{width:auto;margin-right:.4rem}.fd-top-search{max-width:260px}}@media (max-width: 640px){.fd-top-in{padding:0 1rem;gap:.5rem}.fd-top-search{display:none}.fd-top-search-sm{display:inline-flex}.fd-top-docs{display:none}.fd-top-cta{height:2.25rem;padding:0 .75rem;font-size:1rem}}@media (max-width: 380px){.fd-top-cta{display:none}}.fd-side{position:sticky;top:var(--topbar-h);align-self:start;width:var(--sidebar-w);height:calc(100vh - var(--topbar-h));height:calc(100dvh - var(--topbar-h));overflow-y:auto;overscroll-behavior:contain;padding:1.6rem 1rem 3rem 1.25rem;border-right:1px solid var(--line);flex:0 0 auto}.fd-side-group+.fd-side-group{margin-top:1.6rem}.fd-side-label{margin:0 0 .45rem;padding:0 .65rem;font-weight:500}.fd-side ul{list-style:none;margin:0;padding:0}.fd-side-link{position:relative;display:block;padding:.34rem .65rem;border-radius:var(--r-sm);font-size:.875rem;line-height:1.45;color:var(--muted);transition:color var(--dur) var(--ease),background var(--dur) var(--ease)}.fd-side-link:hover{color:var(--fg)}.fd-side-link.is-active{color:var(--fg);background:var(--bg-active);font-weight:500}.fd-side-tag{margin-left:.5rem;padding:.1rem .35rem;border-radius:5px;border:1px solid var(--line);font-family:var(--font-mono);font-size:.6rem;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);vertical-align:.1em}.fd-side-scrim{display:none}@media (max-width: 960px){.fd-side{position:fixed;z-index:60;top:var(--topbar-h);left:0;bottom:0;height:auto;align-self:auto;width:min(320px,86vw);background:var(--bg);transform:translate(-102%);visibility:hidden;transition:transform var(--dur-slow) var(--ease),visibility 0s linear var(--dur-slow);padding-bottom:calc(3rem + env(safe-area-inset-bottom))}.fd-side.is-open{transform:none;visibility:visible;transition:transform var(--dur-slow) var(--ease),visibility 0s}.fd-side-link{padding:.5rem .65rem;font-size:.94rem}.fd-side-scrim{display:block;position:fixed;inset:var(--topbar-h) 0 0 0;z-index:55;background:var(--scrim);opacity:0;pointer-events:none;transition:opacity var(--dur-slow) var(--ease)}.fd-side-scrim.is-open{opacity:1;pointer-events:auto}}.fd-toc-title{margin-bottom:.8rem}.fd-toc-list{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}.fd-toc-list li{margin:0}.fd-toc-list a{display:block;position:relative;padding:.28rem 0 .28rem .9rem;margin-left:-1px;border-left:1px solid transparent;font-size:.8rem;line-height:1.45;color:var(--dim);transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease)}.fd-toc-list .lvl-3 a{padding-left:1.65rem;font-size:.78rem}.fd-toc-list a:hover{color:var(--fg)}.fd-toc-list .is-active a{color:var(--fg);border-left-color:var(--fg)}.fd-toc.is-inline{margin:0 0 2.2rem;border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-raised)}.fd-toc-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 1rem;background:none;border:0;cursor:pointer;color:var(--dim)}.fd-toc-toggle .fd-label{color:var(--muted)}.fd-toc-toggle .fd-icon{width:1rem;height:1rem;transition:transform var(--dur) var(--ease)}.fd-toc.is-inline.is-open .fd-toc-toggle .fd-icon{transform:rotate(180deg)}.fd-toc.is-inline .fd-toc-list{display:none;margin:0 1rem .9rem}.fd-toc.is-inline.is-open .fd-toc-list{display:block}.fd-toc.is-inline .fd-toc-list a{font-size:.86rem;padding-top:.4rem;padding-bottom:.4rem}.fd-docfoot{margin-top:4.5rem}.fd-pager{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}.fd-pager-card{display:flex;flex-direction:column;gap:.55rem;padding:1.05rem 1.2rem 1.15rem;border:1px solid var(--line);border-radius:var(--r-lg);transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease)}.fd-pager-card:hover{border-color:var(--line-strong);background:var(--bg-raised)}.fd-pager-card .fd-label{display:inline-flex;align-items:center;gap:.4rem}.fd-pager-card .fd-icon{width:.8rem;height:.8rem;transition:transform var(--dur) var(--ease)}.fd-pager-card.is-next{text-align:right;align-items:flex-end}.fd-pager-card.is-prev:hover .fd-icon{transform:translate(-3px)}.fd-pager-card.is-next:hover .fd-icon{transform:translate(3px)}.fd-pager-title{font-family:var(--font-serif);font-size:1.45rem;line-height:1.15;color:var(--fg)}.fd-docfoot-meta{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem 1.5rem;margin-top:2rem;padding-top:1.4rem;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:.72rem;color:var(--dim)}.fd-docfoot-meta a{color:var(--dim);transition:color var(--dur) var(--ease)}.fd-docfoot-meta a:hover{color:var(--fg)}@media (max-width: 560px){.fd-pager{grid-template-columns:1fr}.fd-pager>span:empty{display:none}.fd-pager-title{font-size:1.3rem}}.fd-foot{border-top:1px solid var(--line);padding:3.2rem 1.5rem 2rem}.fd-foot-in{max-width:1180px;margin:0 auto;display:flex;justify-content:space-between;gap:3rem;flex-wrap:wrap}.fd-foot-brand{color:var(--fg)}.fd-foot-mark{height:1.3rem}.fd-foot-brand p{margin:.9rem 0 0;font-family:var(--font-serif);font-size:1.3rem;color:var(--muted)}.fd-foot-cols{display:grid;grid-template-columns:repeat(3,minmax(9rem,auto));gap:2.5rem}.fd-foot-cols>div{display:flex;flex-direction:column;gap:.55rem}.fd-foot-cols .fd-label{margin-bottom:.3rem}.fd-foot-cols a{font-size:.86rem;color:var(--muted);transition:color var(--dur) var(--ease)}.fd-foot-cols a:hover{color:var(--fg)}.fd-foot-base{max-width:1180px;margin:2.8rem auto 0;font-family:var(--font-mono);font-size:.7rem;color:var(--dim)}@media (max-width: 640px){.fd-foot{padding:2.6rem 1rem 1.6rem}.fd-foot-cols{grid-template-columns:1fr 1fr;gap:2rem 1.5rem;width:100%}}.fd-search{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:var(--scrim);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;justify-content:center;align-items:flex-start;padding:12vh 1rem 1rem}.fd-search-box{width:100%;max-width:640px;max-height:min(620px,76vh);display:flex;flex-direction:column;background:var(--bg-raised);border:1px solid var(--line-strong);border-radius:var(--r-xl);box-shadow:var(--shadow-pop);overflow:hidden}.fd-search-field{display:flex;align-items:center;gap:.75rem;padding:0 .9rem 0 1.1rem;height:3.6rem;border-bottom:1px solid var(--line);flex:0 0 auto}.fd-search-field>.fd-icon{width:1.15rem;height:1.15rem;color:var(--dim);flex:0 0 auto}.fd-search-field input{flex:1;min-width:0;height:100%;background:none;border:0;outline:none;color:var(--fg);font-size:1.05rem}.fd-search-field input::placeholder{color:var(--dim)}.fd-search-field input::-webkit-search-cancel-button{display:none}.fd-search-close{flex:0 0 auto;height:1.6rem;padding:0 .5rem;border-radius:var(--r-xs);border:1px solid var(--line-strong);background:transparent;color:var(--muted);font-family:var(--font-mono);font-size:.68rem;cursor:pointer}.fd-search-list{overflow-y:auto;padding:.5rem;flex:1 1 auto;overscroll-behavior:contain}.fd-search-head{padding:.6rem .7rem .4rem}.fd-search-item{display:flex;align-items:center;gap:.8rem;padding:.65rem .7rem;border-radius:var(--r-md);color:var(--text)}.fd-search-item.is-sel{background:var(--bg-active)}.fd-search-ico{width:1rem;height:1rem;color:var(--dim);flex:0 0 auto}.fd-search-txt{flex:1;min-width:0;display:flex;flex-direction:column;gap:.12rem}.fd-search-title{color:var(--fg);font-size:.93rem;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.fd-search-title mark{background:none;color:var(--fg);text-decoration:underline;text-decoration-color:var(--line-strong);text-underline-offset:.2em}.fd-search-trail{font-family:var(--font-mono);font-size:.68rem;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fd-search-enter{width:.95rem;height:.95rem;color:var(--dim);opacity:0;flex:0 0 auto}.fd-search-item.is-sel .fd-search-enter{opacity:1}.fd-search-empty{padding:2rem 1rem;text-align:center;color:var(--muted);font-size:.9rem}.fd-search-empty a{color:var(--fg);text-decoration:underline;text-underline-offset:.2em}.fd-search-foot{display:flex;gap:1.2rem;padding:.7rem 1.1rem;border-top:1px solid var(--line);font-size:.74rem;color:var(--dim);flex:0 0 auto}.fd-search-foot span{display:inline-flex;align-items:center;gap:.3rem}.fd-search-foot kbd{height:1.25rem;min-width:1.25rem;font-size:.64rem;border-bottom-width:1px}.fd-search-enter-active,.fd-search-leave-active{transition:opacity var(--dur) var(--ease)}.fd-search-enter-active .fd-search-box,.fd-search-leave-active .fd-search-box{transition:transform var(--dur) var(--ease)}.fd-search-enter-from,.fd-search-leave-to{opacity:0}.fd-search-enter-from .fd-search-box,.fd-search-leave-to .fd-search-box{transform:translateY(-6px) scale(.99)}@media (max-width: 640px){.fd-search{padding:0;align-items:stretch}.fd-search-box{max-width:none;max-height:none;height:100%;border-radius:0;border:0}.fd-search-foot{display:none}.fd-search-field input{font-size:16px}}.fd-home{padding-bottom:5rem}.fd-hero{position:relative;min-height:min(760px,92vh);display:flex;align-items:center;padding:calc(var(--topbar-h) + 3rem) 1.5rem 4rem;overflow:hidden;isolation:isolate}.fd-hero-art{position:absolute;z-index:-1;top:0;right:0;bottom:0;width:58%;pointer-events:none;-webkit-mask-image:linear-gradient(to right,transparent 0%,#000 42%),linear-gradient(to bottom,#000 70%,transparent 100%);-webkit-mask-composite:source-in;mask-image:linear-gradient(to right,transparent 0%,#000 42%),linear-gradient(to bottom,#000 70%,transparent 100%);mask-composite:intersect}.fd-hero-art img{width:100%;height:100%;object-fit:cover;object-position:center 38%;opacity:.9;animation:fd-breathe 14s ease-in-out infinite alternate;transform-origin:70% 40%}html.light .fd-hero-art img{opacity:.5;filter:grayscale(.4) contrast(.9);mix-blend-mode:multiply}.fd-hero-art .fd-hero-scene{position:absolute;top:0;right:0;bottom:0;left:0;display:block;width:100%;height:100%;min-height:100%;opacity:0;transition:opacity 1.2s ease}.fd-hero-art .fd-hero-scene iframe{width:100%;height:100%}.fd-hero-art.is-live .fd-hero-scene{opacity:.9}.fd-hero-art img{transition:opacity 1.2s ease}.fd-hero-art.is-live img{opacity:0!important}html.light .fd-hero-art.is-live .fd-hero-scene{opacity:.5;filter:grayscale(.4) contrast(.9);mix-blend-mode:multiply}@keyframes fd-breathe{0%{transform:scale(1)}to{transform:scale(1.05)}}.fd-hero-in{width:100%;max-width:1180px;margin:0 auto}.fd-hero-kicker{display:block;margin-bottom:1.6rem}.fd-hero-title{margin:0;max-width:none;font-family:var(--font-serif);font-weight:400;font-size:clamp(3rem,7.4vw,6.2rem);line-height:.96;letter-spacing:-.02em;color:var(--fg)}.fd-hero-title em{display:block;font-style:italic;color:var(--muted)}.fd-hero-lead{max-width:34rem;margin:1.8rem 0 2.2rem;font-size:1.08rem;line-height:1.65;color:var(--muted)}.fd-hero-search{display:flex;align-items:center;gap:.75rem;width:100%;max-width:30rem;height:3.2rem;padding:0 .7rem 0 1.1rem;border-radius:var(--r-lg);border:1px solid var(--line-strong);background:var(--bg-blur);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--dim);font-size:.98rem;cursor:pointer;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease)}.fd-hero-search:hover{border-color:var(--fg);color:var(--muted)}.fd-hero-search>.fd-icon{width:1.1rem;height:1.1rem}.fd-hero-search>span:nth-child(2){flex:1;text-align:left}.fd-hero-keys{display:flex;gap:.25rem}.fd-hero-quick{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 1.2rem;margin-top:1.4rem}.fd-hero-quick .fd-label{margin-right:.1rem}.fd-hero-quick a{font-size:.88rem;color:var(--muted);border-bottom:1px solid var(--line-strong);padding-bottom:1px;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease)}.fd-hero-quick a:hover{color:var(--fg);border-color:var(--fg)}.fd-home-sec{max-width:calc(1180px + 3rem);margin:0 auto;padding:0 1.5rem}.fd-home-sec+.fd-home-sec{margin-top:5.5rem}.fd-home-h{margin:0 0 1.6rem;font-family:var(--font-serif);font-weight:400;font-size:2.3rem;line-height:1.1;color:var(--fg)}.fd-start{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.fd-start-card{display:flex;flex-direction:column;min-height:15rem;padding:1.4rem 1.4rem 1.3rem;border:1px solid var(--line);border-radius:var(--r-xl);background:linear-gradient(180deg,var(--bg-raised),transparent 85%);transition:border-color var(--dur) var(--ease),transform var(--dur-slow) var(--ease)}.fd-start-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}.fd-start-n{font-family:var(--font-mono);font-size:.72rem;color:var(--dim)}.fd-start-title{margin-top:auto;font-family:var(--font-serif);font-size:1.9rem;line-height:1.05;color:var(--fg)}.fd-start-text{margin-top:.6rem;font-size:.9rem;line-height:1.55;color:var(--muted)}.fd-start-go{display:inline-flex;align-items:center;gap:.4rem;margin-top:1.2rem;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);transition:color var(--dur) var(--ease)}.fd-start-go .fd-icon{width:.8rem;height:.8rem;transition:transform var(--dur) var(--ease)}.fd-start-card:hover .fd-start-go{color:var(--fg)}.fd-start-card:hover .fd-start-go .fd-icon{transform:translate(3px)}.fd-map{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2.4rem 2rem;padding-top:1.8rem;border-top:1px solid var(--line)}.fd-map-label{margin-bottom:.8rem}.fd-map ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.45rem}.fd-map a{font-size:.9rem;color:var(--muted);transition:color var(--dur) var(--ease)}.fd-map a:hover{color:var(--fg)}.fd-home-help .fd-cards{margin:0}@media (max-width: 1000px){.fd-map{grid-template-columns:repeat(2,minmax(0,1fr))}.fd-hero-art{width:75%;opacity:.75}}@media (max-width: 760px){.fd-hero{min-height:0;padding:calc(var(--topbar-h) + 2.2rem) 1rem 3rem;align-items:flex-start}.fd-hero-art{width:100%;opacity:.5;-webkit-mask-image:linear-gradient(to bottom,#000 10%,transparent 85%);mask-image:linear-gradient(to bottom,#000 10%,transparent 85%)}.fd-hero-title em{display:inline}.fd-hero-lead{font-size:1rem;margin:1.3rem 0 1.7rem}.fd-home-sec{padding:0 1rem}.fd-home-sec+.fd-home-sec{margin-top:4rem}.fd-home-h{font-size:1.9rem}.fd-start{grid-template-columns:1fr}.fd-start-card{min-height:0}.fd-start-title{margin-top:1.6rem;font-size:1.7rem}.fd-map{grid-template-columns:1fr 1fr;gap:2rem 1.2rem}}@media (max-width: 420px){.fd-hero-keys{display:none}}.fd-404{max-width:760px;margin:0 auto;padding:9rem 1.5rem 8rem}.fd-404 h1{margin:1.2rem 0;font-family:var(--font-serif);font-weight:400;font-size:clamp(2.6rem,6vw,4.4rem);line-height:1;letter-spacing:-.015em;color:var(--fg)}.fd-404 h1 em{color:var(--muted)}.fd-404 p{max-width:32rem;color:var(--muted);font-size:1.05rem}.fd-404-actions{display:flex;flex-wrap:wrap;align-items:center;gap:1.4rem;margin-top:2rem}.fd-404-home{display:inline-flex;align-items:center;gap:.4rem;color:var(--muted);font-size:.92rem}.fd-404-home:hover{color:var(--fg)}.fd-404-home .fd-icon{width:.9rem;height:.9rem}.fd-skip{position:fixed;left:1rem;top:-3rem;z-index:200;padding:.6rem .9rem;border-radius:var(--r-md);background:var(--invert-bg);color:var(--invert-fg);font-size:.85rem;transition:top var(--dur) var(--ease)}.fd-skip:focus{top:.6rem}.fd-shell{display:flex;max-width:1600px;margin:0 auto;min-height:calc(100vh - var(--topbar-h))}.fd-main{flex:1;min-width:0;display:flex;justify-content:center;gap:3.5rem;padding:3.2rem 2.5rem 6rem}.fd-article{width:100%;max-width:var(--content-w);min-width:0}.fd-aside{width:var(--toc-w);flex:0 0 auto}.fd-aside-in{position:sticky;top:calc(var(--topbar-h) + 3.2rem);max-height:calc(100vh - var(--topbar-h) - 5rem);overflow-y:auto;padding-bottom:2rem}.fd-crumb{margin-bottom:1.1rem}.fd-title{margin:0;font-family:var(--font-serif);font-weight:400;font-size:3.35rem;line-height:1.02;letter-spacing:-.018em;color:var(--fg);text-wrap:balance}.fd-lead{margin:1.1rem 0 0;max-width:40rem;font-size:1.1rem;line-height:1.6;color:var(--muted);text-wrap:pretty}.fd-plans{display:flex;align-items:center;gap:.5rem;margin-top:1.3rem}.fd-plans-txt{font-size:.82rem;color:var(--dim)}.fd-article>.fd-doc{margin-top:2.6rem}.fd-toc-inline{display:none}@media (max-width: 1240px){.fd-aside{display:none}.fd-article>.fd-toc-inline{display:block;margin-top:2rem}.fd-article>.fd-toc-inline+.fd-doc{margin-top:0}}@media (max-width: 1240px) and (min-width: 961px){.fd-main{padding-left:3rem;padding-right:3rem}}@media (max-width: 960px){.fd-shell{display:block}.fd-main{padding:2.4rem 1.5rem 4.5rem}}@media (max-width: 640px){.fd-main{padding:1.8rem 1rem 4rem}.fd-title{font-size:2.5rem}.fd-lead{font-size:1.02rem}}.fd-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.9rem;margin:1.6rem 0 2rem}.fd-cards.is-3{grid-template-columns:repeat(3,minmax(0,1fr))}.fd-card{position:relative;display:flex;flex-direction:column;gap:.35rem;padding:1.1rem 2.6rem 1.15rem 1.15rem;border:1px solid var(--line);border-radius:var(--r-lg);background:transparent;color:var(--text);text-decoration:none;transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease)}.fd-card:hover{border-color:var(--line-strong);background:var(--bg-raised)}.fd-card-ico{width:2rem;height:2rem;margin-bottom:.45rem;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--fg)}.fd-card-ico .fd-icon{width:1rem;height:1rem}.fd-card-title{color:var(--fg);font-weight:600;font-size:.95rem;line-height:1.35}.fd-card-body{font-size:.86rem;line-height:1.55;color:var(--muted)}.fd-card-body:empty{display:none}.fd-card-arrow{position:absolute;right:1rem;top:1.2rem;width:.95rem;height:.95rem;color:var(--dim);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease)}.fd-card:hover .fd-card-arrow{color:var(--fg);transform:translate(2px)}@media (max-width: 760px){.fd-cards.is-3{grid-template-columns:1fr 1fr}}@media (max-width: 560px){.fd-cards,.fd-cards.is-3{grid-template-columns:1fr}}.fd-map-fig{margin:2rem 0 2.4rem}.fd-map-fig svg{width:100%;height:auto;border-radius:var(--r-xl);background:var(--bg-soft)}.fd-map-fig .m-frame{fill:none;stroke:var(--line)}.fd-map-fig .m-bar{fill:var(--bg-raised);stroke:var(--line)}.fd-map-fig .m-panel{fill:var(--bg-raised-2);stroke:var(--line-strong)}.fd-map-fig .m-canvas{fill:var(--bg);stroke:var(--line)}.fd-map-fig .m-pill{fill:none;stroke:var(--line-strong)}.fd-map-fig .m-pill.dim{stroke:var(--line)}.fd-map-fig .m-pill.solid{fill:var(--fg);stroke:none;opacity:.85}.fd-map-fig .m-dots rect{fill:none;stroke:var(--line-strong)}.fd-map-fig .m-line{fill:var(--faint)}.fd-map-fig .m-line.dim{fill:none;stroke:var(--line)}.fd-map-fig .m-rows rect{fill:none;stroke:var(--line)}.fd-map-fig .m-rows rect:first-child{fill:var(--faint);stroke:none}.fd-map-fig .m-rows rect.hi{fill:var(--bg-active);stroke:var(--line-strong)}.fd-map-fig .m-object path{fill:var(--bg-raised-2);stroke:var(--muted);stroke-width:1.5;stroke-linejoin:round}.fd-map-fig .m-object .m-face{fill:var(--faint)}.fd-map-fig .m-object .m-edge{fill:none}.fd-map-fig .m-shadow{fill:var(--line)}.fd-map-fig .m-ball{fill:var(--muted);opacity:.6}.fd-map-fig .m-num rect{fill:var(--fg)}.fd-map-fig .m-num text{fill:var(--bg);font-family:var(--font-mono);font-size:15px;font-weight:500;text-anchor:middle}.fd-map-legend{list-style:none;margin:1.3rem 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:.9rem 1.6rem}.fd-map-legend li{display:flex;gap:.75rem;margin:0;padding:0;font-size:.88rem;line-height:1.55;color:var(--muted)}.fd-map-legend li:before{display:none}.fd-map-legend strong{color:var(--fg);font-weight:600}.fd-map-n{flex:0 0 auto;width:1.45rem;height:1.45rem;margin-top:.05rem;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--r-xs);background:var(--fg);color:var(--bg);font-family:var(--font-mono);font-size:.72rem;font-weight:500}@media (max-width: 640px){.fd-map-legend{grid-template-columns:1fr}}