/* SPI Lab — spilib.com. One stylesheet, no external resources. */
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2")}

:root{--bg:#FBFBF9;--fg:#16181B;--mute:#565B63;--rule:#D5D7DA;--panel:#F1F2F1;--accent:#00687F;--accent-ink:#FFFFFF;--err:#A3261B;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--bg:#121417;--fg:#E6E8EA;--mute:#A3A9B1;--rule:#353A41;--panel:#1A1D21;--accent:#4FC3DB;--accent-ink:#0B1214;--err:#FF8A7A}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 "IBM Plex Sans",Arial,sans-serif}
[hidden]{display:none!important}
a{color:var(--accent)}
a:hover{color:var(--fg)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.skip{position:absolute;left:-9999px;top:8px}
.skip:focus{left:16px;background:var(--bg);padding:8px 12px;z-index:10}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:480px){.wrap{padding:0 16px}}
.mono,code{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-size:.92em}
h1{margin:0;font-size:32px;font-weight:600;line-height:1.25}
h2{margin:0;font-size:22px;font-weight:600;line-height:1.3}
h3{margin:0;font-size:17px;font-weight:600}
p{margin:0}

/* Header */
.site-header{border-bottom:1px solid var(--rule)}
.site-header .wrap{min-height:64px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 32px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--fg);font-weight:600;font-size:18px;padding:10px 0}
.brand:hover{color:var(--fg)}
.menu{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:center;gap:0 24px;font-size:15px}
.menu a:not(.btn){color:var(--fg);text-decoration:none;padding:10px 0;display:inline-block}
.menu a:not(.btn):hover{color:var(--accent)}
.menu a[aria-current=page]:not(.btn){box-shadow:inset 0 -2px 0 var(--accent)}

/* Buttons */
.btn,.btn2{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1px solid var(--accent);background:var(--accent);color:var(--accent-ink);text-decoration:none;font:inherit;font-weight:500;border-radius:2px;cursor:pointer}
.btn:hover{color:var(--accent-ink);filter:brightness(1.12)}
.btn2{background:transparent;border-color:var(--fg);color:var(--fg)}
.btn2:hover{color:var(--accent);border-color:var(--accent)}
.actions{display:flex;flex-wrap:wrap;gap:12px}

/* Page head */
.page-head{display:flex;flex-direction:column;gap:12px;padding:24px 0 28px;border-bottom:1px solid var(--rule)}
.crumb{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--mute)}
.crumb li+li::before{content:"/";margin-right:6px}
.lede{font-size:18px;color:var(--mute);max-width:40em}

/* Blocks */
.prose{max-width:44em}
.stack{display:flex;flex-direction:column;gap:14px}
.section{padding:48px 0;border-bottom:1px solid var(--rule)}
.section.last{border-bottom:0}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(380px,100%),1fr));gap:32px 56px}
.split{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:8px 24px}
.note{color:var(--mute);font-size:15px}
.feat{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px;max-width:44em}
.ruled{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:0 32px;font-size:15px}
.ruled li{padding:10px 0;border-top:1px solid var(--rule)}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:0 24px}
.steps li{display:flex;flex-direction:column;gap:6px;padding:16px 16px 18px 0;border-top:2px solid var(--fg)}
.steps .n{font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--mute)}
.cta{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px 48px;padding:48px 0}
.cta .stack{gap:8px}

/* Tables */
.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:15px}
.tbl table{min-width:640px}
.tbl.wide table{min-width:960px}
.tbl.narrow table{min-width:480px}
th,td{border-bottom:1px solid var(--rule);padding:10px 14px 10px 0;text-align:left;vertical-align:top}
thead th{border-bottom:2px solid var(--fg);font-weight:600;font-size:13px;letter-spacing:.02em}
tbody th{font-weight:500}
caption{caption-side:bottom;text-align:left;color:var(--mute);font-size:13px;padding-top:10px}
td.na{color:var(--mute)}
th.w34{width:34%}
th.w24{width:24%}

/* Figures and SVG */
figure{margin:0}
.fig{display:flex;flex-direction:column;gap:10px;border:1px solid var(--rule);background:var(--panel);padding:20px 16px 14px}
.fig svg{width:100%;height:auto;display:block}
.fig .scroll{overflow-x:auto}
.fig .scroll svg{min-width:620px}
figcaption{color:var(--mute);font-size:13px}
figcaption b{color:var(--fg);font-weight:500}
svg .tr{fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linejoin:round}
svg .ah{fill:var(--accent)}
svg .z{fill:none;stroke:var(--mute);stroke-width:1.2;stroke-dasharray:3 3}
svg .g{stroke:var(--rule);stroke-width:1;stroke-dasharray:2 4}
svg .bx{fill:var(--bg);stroke:var(--fg);stroke-width:1.2}
svg .bd{fill:none;stroke:var(--mute);stroke-width:1;stroke-dasharray:6 4}
svg .bt{font:600 13px "IBM Plex Sans",Arial,sans-serif;fill:var(--fg)}
svg .bs{font:11px "IBM Plex Mono",monospace;fill:var(--mute)}
svg .lbl{font:12px "IBM Plex Mono",monospace;fill:var(--fg)}
svg .bit{font:11px "IBM Plex Mono",monospace;fill:var(--fg)}

/* Home hero */
.hero{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(460px,100%),1fr));gap:48px;align-items:center;padding:64px 0 56px;border-bottom:1px solid var(--rule)}
.hero .stack{gap:20px;align-items:flex-start}
.hero h1{font-size:38px;line-height:1.2;letter-spacing:-.01em;text-wrap:balance}
.hero .intro{font-size:17px;max-width:34em;text-wrap:pretty}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--mute)}
@media (max-width:480px){.hero{padding:40px 0;gap:32px}.hero h1{font-size:30px}}

/* Sidebar layout */
.with-side{display:flex;flex-wrap:wrap;gap:48px 56px;padding-top:36px;align-items:flex-start}
.with-side>.main{flex:999 1 560px;min-width:0;display:flex;flex-direction:column;gap:44px}
.side{flex:1 1 260px;display:flex;flex-direction:column;gap:28px;border-left:1px solid var(--rule);padding-left:24px}
@media (max-width:900px){.side{border-left:0;padding-left:0;border-top:1px solid var(--rule);padding-top:24px}}
.side h2{font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--mute);margin-bottom:8px;font-weight:600}
.side ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;font-size:15px}
.side .small{font-size:14px}
.side p{font-size:15px;margin-bottom:12px}
section[id]{scroll-margin-top:16px}

/* Forms */
.form{display:flex;flex-direction:column;gap:32px}
fieldset{border:0;border-top:1px solid var(--rule);margin:0;padding:24px 0 0;display:flex;flex-direction:column;gap:16px;min-width:0}
legend{font-size:20px;font-weight:600;padding:0;float:left;width:100%}
legend+*{clear:both}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr));gap:16px 24px}
.grid2.tight{gap:0 24px}
.f{display:flex;flex-direction:column;gap:6px;font-size:15px}
.f>span:first-child{font-weight:500}
.hint{color:var(--mute);font-size:14px;font-weight:400}
.e{color:var(--err);font-size:14px;font-weight:500}
input[type=text],input[type=email],select,textarea{font:inherit;font-size:16px;min-height:44px;border:1px solid var(--mute);background:var(--bg);color:var(--fg);padding:8px 10px;border-radius:2px;width:100%}
textarea{min-height:140px;resize:vertical}
input[aria-invalid=true],select[aria-invalid=true],textarea[aria-invalid=true]{border:2px solid var(--err)}
.opt{display:flex;align-items:flex-start;gap:10px;min-height:44px;padding-top:10px;font-size:15px}
.opt input{width:18px;height:18px;margin:2px 0 0;flex:none;accent-color:var(--accent)}
.col{display:flex;flex-direction:column}
.errbox{border:2px solid var(--err);padding:16px 20px;display:flex;flex-direction:column;gap:8px}
.errbox ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:4px;font-size:15px}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.submit{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px}
dl.addr{margin:0;display:grid;grid-template-columns:max-content 1fr;gap:10px 24px;font-size:15px}
dl.addr dt{color:var(--mute)}
dl.addr dd{margin:0}
address{font-style:normal}
.big{font-size:20px}

/* Privacy rows */
.row{display:flex;flex-wrap:wrap;gap:8px 40px;padding:24px 0;border-top:1px solid var(--rule)}
.row h2{flex:1 1 240px;font-size:20px}
.row>div{flex:2 1 480px;min-width:0;max-width:46em}

/* Footer */
.site-footer{border-top:1px solid var(--rule);margin-top:64px}
.site-footer .wrap{padding-top:32px;padding-bottom:40px;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:24px;font-size:14px;color:var(--mute)}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.site-footer .who{display:flex;flex-direction:column;gap:4px}
.site-footer strong{color:var(--fg);font-weight:600}

@media print{.site-header nav,.site-footer nav,.actions,.side{display:none}a{color:inherit}}