:root{--bg:#F3F6F9;--surface:#FFFFFF;--ink:#1C2733;--muted:#5B6877;--rule:#DCE3EA;--accent:#C8283C;--accent-soft:#FBE9EC;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#11171E;--surface:#19212A;--ink:#E6ECF2;--muted:#9AA7B5;--rule:#2B3540;--accent:#F0566A;--accent-soft:#3A1E24;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#11171E;--surface:#19212A;--ink:#E6ECF2;--muted:#9AA7B5;--rule:#2B3540;--accent:#F0566A;--accent-soft:#3A1E24;color-scheme:dark}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 24px);scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.pulse path{animation:none!important;stroke-dashoffset:0!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:1.0625rem;line-height:1.65}
header.top{background:var(--surface);border-bottom:1px solid var(--rule)}
.wrap{max-width:1080px;margin:0 auto;padding:0 1.25rem}
.hero{padding:2.75rem 0 0}
.app{color:var(--muted);font-size:.95rem;margin:0 0 .5rem}
h1{font-family:"Bricolage Grotesque",system-ui,sans-serif;font-weight:700;font-size:clamp(2.2rem,6vw,3.6rem);line-height:1.05;letter-spacing:-.02em;margin:0}
.meta{color:var(--muted);margin:.85rem 0 0;font-size:.95rem}
.pulse{display:block;width:100%;height:56px;margin-top:1.5rem}
.pulse path{fill:none;stroke:var(--accent);stroke-width:2;stroke-linejoin:round;stroke-linecap:round;stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 1.8s ease-out .2s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.layout{display:grid;grid-template-columns:1fr;gap:2rem;padding:2.5rem 0 4rem}
@media (min-width:900px){.layout{grid-template-columns:230px minmax(0,1fr);gap:3.5rem}}
nav.toc{font-size:.92rem}
nav.toc h2{font-family:inherit;font-size:.95rem;font-weight:700;margin:0 0 .6rem;color:var(--muted)}
nav.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--rule)}
nav.toc a{display:block;padding:.28rem 0 .28rem .85rem;margin-left:-2px;border-left:2px solid transparent;color:var(--muted);text-decoration:none}
nav.toc a:hover{color:var(--ink);border-left-color:var(--accent)}
@media (min-width:900px){nav.toc{position:sticky;top:calc(env(safe-area-inset-top,0px) + 1.5rem);align-self:start;max-height:calc(100vh - 3rem);overflow:auto}}
@media (max-width:899px){nav.toc details{background:var(--surface);border:1px solid var(--rule);border-radius:10px;padding:.75rem 1rem}nav.toc summary{cursor:pointer;font-weight:700}nav.toc ol{margin-top:.6rem}}
@media (min-width:900px){nav.toc summary{display:none}nav.toc details>ol{display:block}}
main{max-width:70ch}
.lede{font-size:1.2rem;line-height:1.55;margin:0 0 2rem;padding-left:1rem;border-left:3px solid var(--accent)}
section{padding:1.75rem 0;border-top:1px solid var(--rule)}
section:first-of-type{border-top:0;padding-top:0}
h2.sec{font-family:"Bricolage Grotesque",system-ui,sans-serif;font-size:1.45rem;line-height:1.25;letter-spacing:-.01em;margin:0 0 .75rem;display:flex;gap:.6rem;align-items:baseline}
h2.sec .n{color:var(--accent);font-variant-numeric:tabular-nums;min-width:1.6em}
h3{font-size:1.1rem;margin:1.5rem 0 .4rem}
p{margin:0 0 .9rem}
ul{margin:0 0 .9rem;padding-left:1.2rem}
li{margin:.3rem 0}
li::marker{color:var(--accent)}
strong{font-weight:700}
.callout{background:var(--accent-soft);border-radius:10px;padding:1rem 1.15rem;margin:1rem 0}
.callout p:last-child{margin:0}
.tbl{overflow-x:auto;margin:1rem 0;border:1px solid var(--rule);border-radius:10px;background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:.95rem}
th,td{text-align:left;vertical-align:top;padding:.7rem .9rem;border-bottom:1px solid var(--rule)}
th{font-weight:700;color:var(--muted);background:var(--bg)}
tr:last-child td{border-bottom:0}
a{color:var(--accent);text-underline-offset:2px}
a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}
dl.contact{display:grid;grid-template-columns:max-content 1fr;gap:.45rem 1.25rem;margin:0;background:var(--surface);border:1px solid var(--rule);border-radius:10px;padding:1.1rem 1.25rem}
dl.contact dt{color:var(--muted)}dl.contact dd{margin:0;overflow-wrap:anywhere}
@media (max-width:480px){dl.contact{grid-template-columns:1fr}dl.contact dd{margin-bottom:.5rem}}
footer{border-top:1px solid var(--rule);color:var(--muted);font-size:.9rem;padding:1.5rem 0 2.5rem}
img{max-width:100%}