:root{--fg:#1d1d1f;--muted:#6e6e73;--bg:#fff;--soft:#f5f5f7;--accent:#0071e3;--line:#d2d2d7;--edge:max(22px,env(safe-area-inset-left,0px),env(safe-area-inset-right,0px))}
@media (prefers-color-scheme:dark){:root{--fg:#f5f5f7;--muted:#a1a1a6;--bg:#000;--soft:#1d1d1f;--accent:#2997ff;--line:#424245}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-block-start:64px}
body{margin:0;font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;min-block-size:100dvh;display:flex;flex-direction:column}
a{color:var(--accent);text-decoration:none}
.site-header{position:sticky;inset-block-start:0;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);background:color-mix(in srgb,var(--bg) 80%,transparent);border-block-end:1px solid var(--line);z-index:1;padding-block-start:env(safe-area-inset-top,0px)}
.header-nav{max-inline-size:980px;margin-inline:auto;padding-inline:var(--edge);block-size:52px;display:flex;align-items:center;justify-content:space-between}
.header-nav .brand{font-weight:600;font-size:19px;color:var(--fg)}
.header-nav .nav-links a{color:var(--muted);font-size:14px;margin-inline-start:24px}

.header-nav a{position:relative}
.header-nav a::after{content:"";position:absolute;inset-block-start:50%;inset-inline-start:50%;transform:translate(-50%,-50%);inline-size:max(100%,44px);block-size:44px}
:dir(rtl) .header-nav a::after{transform:translate(50%,-50%)}
main{max-inline-size:720px;margin-inline:auto;padding-block:56px 80px;padding-inline:var(--edge);flex:1 0 auto;inline-size:100%;min-inline-size:0}
.hero{max-inline-size:980px;text-align:center;padding-block:120px 100px}
.hero h1{font-size:clamp(44px,8vw,80px);line-height:1.05;letter-spacing:-.015em;margin:0 0 16px;font-weight:700}
.hero p{font-size:clamp(19px,2.6vw,24px);color:var(--muted);margin:0 auto 36px;max-inline-size:620px;line-height:1.4}
.btn{display:inline-block;background:var(--accent);color:#fff;border-radius:980px;padding:12px 24px;font-size:17px}
.ghost{background:transparent;color:var(--accent)}
.chevron{display:inline-block;direction:ltr;unicode-bidi:isolate}
:dir(rtl) .chevron{transform:scaleX(-1)}
h1{font-size:40px;line-height:1.1;letter-spacing:-.01em;margin:0 0 8px}
h2{font-size:24px;margin:44px 0 8px;letter-spacing:-.005em}
.meta{color:var(--muted);font-size:15px;margin-block-end:32px}
.card{background:var(--soft);border-radius:18px;padding:24px 28px;margin-block:24px}
.document{overflow-wrap:anywhere}
.document a{text-decoration:underline;text-underline-offset:.15em}
.document .card-heading{margin-block-start:0}
ul,ol{padding-inline-start:24px}
.tbl{max-inline-size:100%;margin-block:16px}
table{border-collapse:collapse;inline-size:100%;font-size:14px;line-height:1.45}
th,td{text-align:start;vertical-align:top;padding:10px 12px;border-block-end:1px solid var(--line);overflow-wrap:anywhere}
th{font-weight:600;color:var(--muted);font-size:13px}
caption{text-align:start;font-weight:600;padding:12px}

thead{position:absolute;inline-size:1px;block-size:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
tbody,tbody tr,tbody td{display:block}
tbody tr+tr{border-block-start:2px solid var(--line)}
tbody td{border:0}
.cell-label{display:block;font-weight:600;margin-block-end:4px}
.review-note{padding:16px 20px;border:1px solid var(--line);border-radius:8px}
.error-links{display:flex;flex-wrap:wrap;gap:16px 28px}
summary{cursor:pointer;min-block-size:44px;padding-block:10px}

.document .card a{color:#164db7}
.document .btn{background:#164db7;color:#fff}
@media (prefers-color-scheme:dark){.document .card a{color:#9dbdff}.document .btn{background:#9dbdff;color:#172033}}

.site-footer{margin-block-start:auto;border-block-start:1px solid var(--line);color:var(--muted);font-size:13px;text-align:start;padding-block:32px calc(32px + env(safe-area-inset-bottom,0px));padding-inline:var(--edge)}
.footer-nav,.site-footer p{max-inline-size:1200px;margin-inline:auto}
.footer-nav{display:flex;flex-wrap:wrap;column-gap:22px;row-gap:4px;margin-block-end:24px}
.footer-nav a{color:var(--fg)}
.site-footer a{display:inline-block;min-inline-size:44px;min-block-size:44px;max-inline-size:100%;padding-block:8px;vertical-align:middle;overflow-wrap:anywhere}
.site-footer p{margin-block-start:0;margin-block-end:14px;overflow-wrap:anywhere}
.site-footer p:last-child{margin-block-end:0}
.preview-note{font-weight:600}
@media (max-width:767px){.footer-nav{justify-content:center;gap:8px 16px;text-align:center}}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
main:focus{outline:none}
.skip-link{position:absolute;inset-block-start:max(8px,env(safe-area-inset-top,0px));inset-inline-start:var(--edge);z-index:2;padding:12px 20px;background:var(--bg);color:var(--fg);transform:translateY(calc(-100% - env(safe-area-inset-top,0px) - 16px));border:2px solid var(--accent);border-radius:8px}
.skip-link:focus{transform:none}
@media (min-width:480px){.site-footer{padding-inline:max(clamp(22px,4vw,40px),env(safe-area-inset-left,0px),env(safe-area-inset-right,0px))}}
@media (min-width:768px){.footer-nav{column-gap:26px}}
@media (min-width:1024px){
 thead{position:static;inline-size:auto;block-size:auto;overflow:visible;clip-path:none;white-space:normal}
 tbody{display:table-row-group}tbody tr{display:table-row}tbody td{display:table-cell;border-block-end:1px solid var(--line)}
 tbody tr+tr{border-block-start:0}.cell-label{display:none}
}
@media (min-width:1280px){.footer-nav{column-gap:28px}}
@media (min-width:1536px){.site-footer{padding-block-start:40px}}
@media (hover:hover){a:hover{text-decoration:underline}.header-nav .nav-links a:hover{color:var(--fg);text-decoration:none}.btn:hover{text-decoration:none;opacity:.9}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media (prefers-contrast:more){:root{--muted:#303744;--line:#555f70;--accent:#003b91}a{text-decoration-thickness:2px}}
@media (prefers-contrast:more) and (prefers-color-scheme:dark){:root{--muted:#e3e8f2;--line:#c3cad9;--accent:#c2d5ff}}