/* Badminton Raw — shared styles for content pages.
   Tokens mirror the inline system in index.html / roadmap.html. */

:root{
  --ivory:#F5F1E9; --ivory-deep:#EFE8DC; --shell:#FCFAF6;
  --ink:#14110F; --ink-soft:#5B534C; --raw:#D5372C;
  --sans:"Inter Tight",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --serif:"Instrument Serif",ui-serif,Georgia,serif;
  --pad:20px;
}
@media(min-width:1024px){:root{--pad:32px}}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--ivory);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden;position:relative}
::selection{background:var(--ink);color:var(--ivory)}
:focus-visible{outline:2px solid var(--raw);outline-offset:3px;border-radius:4px}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

/* backdrop */
.backdrop{position:fixed;inset:0;z-index:-1;overflow:hidden;background:var(--ivory);pointer-events:none}
.blob{position:absolute;border-radius:50%}
.b1{left:-18%;top:-22%;width:70vmax;height:70vmax;background:radial-gradient(circle at 35% 35%,rgba(201,194,230,.42),rgba(201,194,230,0) 62%);filter:blur(40px)}
.b2{right:-22%;top:6%;width:62vmax;height:62vmax;background:radial-gradient(circle at 60% 40%,rgba(190,211,232,.40),rgba(190,211,232,0) 60%);filter:blur(50px)}
.b3{left:8%;top:52%;width:55vmax;height:55vmax;background:radial-gradient(circle at 50% 50%,rgba(242,205,182,.38),rgba(242,205,182,0) 60%);filter:blur(60px)}
.veilTop{position:absolute;inset:0;background:radial-gradient(120% 80% at 50% 0%,rgba(245,241,233,0) 35%,rgba(245,241,233,.75) 100%)}

/* type */
.display{font-weight:600;letter-spacing:-.035em;line-height:.94;text-wrap:balance}
.it{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.01em}
.label{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:rgba(20,17,15,.5)}
.eyebrow{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--raw)}
.lede{color:var(--ink-soft);line-height:1.65}
.wrap{max-width:1240px;margin:0 auto;padding:0 var(--pad)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;transition:transform .3s,border-color .3s,color .3s;cursor:pointer;border:0}
.btn-dark{background:var(--ink);color:var(--ivory);padding:16px 28px}
.btn-dark:hover{transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(20,17,15,.15);color:rgba(20,17,15,.75);padding:16px 28px;background:transparent}
.btn-ghost:hover{border-color:rgba(20,17,15,.35);color:var(--ink)}

/* header — scoped to #hdr, the public site header, on purpose.
   A bare `header` selector position:fixed'd EVERY <header> on any page that
   loads this file, including section headers inside the portal, which took
   them out of flow and let the content below render on top of them. */
header#hdr{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .5s,border-color .5s;border-bottom:1px solid transparent}
header#hdr.scrolled{background:rgba(245,241,233,.72);backdrop-filter:blur(18px);border-bottom-color:rgba(20,17,15,.08)}
.hd{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:1240px;margin:0 auto;padding:0 var(--pad)}
@media(min-width:1024px){.hd{height:76px}}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:30px;height:auto}
.brand b{display:block;font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;line-height:1}
.brand span span{display:block;margin-top:4px;font-size:11px;letter-spacing:.06em;color:var(--ink-soft);line-height:1}
/* Scoped to the public header on purpose. A bare `nav` selector also caught
   the portal sidebar and the module progress rail, laying them out as
   horizontal flex rows and hiding them below 1024px. `header nav` was still
   wide enough to catch a <nav> inside any portal <header>, so it is #hdr too. */
header#hdr nav{display:none;align-items:center;gap:32px}
@media(min-width:1024px){header#hdr nav{display:flex}}
header#hdr nav a{font-size:14px;color:var(--ink-soft);transition:color .3s}
header#hdr nav a:hover{color:var(--ink)}
nav a.btn{color:var(--ivory);padding:10px 20px;font-size:12px;letter-spacing:.12em}

/* page shell */
.page{padding:132px 0 24px}
@media(min-width:1024px){.page{padding:168px 0 32px}}
.page h1{font-size:clamp(2.4rem,6vw,4rem)}
.page .lede{margin-top:20px;max-width:56ch;font-size:clamp(1rem,2vw,1.15rem)}
.meta{margin-top:24px;font-size:13px;color:rgba(20,17,15,.5)}

/* prose */
.prose{max-width:68ch;padding-bottom:40px}
.prose h2{margin-top:52px;font-size:1.45rem;font-weight:600;letter-spacing:-.02em}
.prose h3{margin-top:32px;font-size:1.05rem;font-weight:600}
.prose p{margin-top:16px;color:var(--ink-soft);line-height:1.75}
.prose ul{margin-top:16px;padding-left:22px}
.prose li{margin-top:10px;color:var(--ink-soft);line-height:1.7}
.prose a{color:var(--raw);text-decoration:underline;text-underline-offset:3px}
.prose strong{color:var(--ink);font-weight:600}
.prose hr{margin-top:48px;border:0;border-top:1px solid rgba(20,17,15,.1)}

/* cards */
.cards{display:grid;gap:20px;margin-top:44px}
@media(min-width:768px){.cards{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--shell);border:1px solid rgba(20,17,15,.08);border-radius:18px;padding:26px}
.card h3{margin-top:12px;font-size:1.1rem;font-weight:600;letter-spacing:-.01em}
.card p{margin-top:10px;font-size:15px;color:var(--ink-soft);line-height:1.65}

/* footer */
footer{margin-top:96px;border-top:1px solid rgba(20,17,15,.1);padding:56px 0}
.fgrid{display:grid;gap:40px;margin-top:56px}
@media(min-width:640px){.fgrid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.fgrid{grid-template-columns:repeat(4,1fr)}}
.fgrid ul{list-style:none;margin-top:16px}
.fgrid li{margin-top:10px;font-size:15px;color:var(--ink-soft)}
.fgrid a:hover{color:var(--ink)}
.fbot{margin-top:56px;border-top:1px solid rgba(20,17,15,.08);padding-top:24px;display:flex;flex-direction:column;gap:12px;font-size:12px;color:rgba(20,17,15,.55)}
@media(min-width:640px){.fbot{flex-direction:row;justify-content:space-between;align-items:center}}

/* Portal sign-in entry point. On narrow screens the rest of the nav is hidden
   by design, but sign-in stays reachable. */
.nav-signin{display:inline-flex;align-items:center;padding:9px 18px;border:1px solid rgba(20,17,15,.22);
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink);transition:border-color .3s,transform .3s}
.nav-signin:hover{border-color:var(--ink);transform:translateY(-1px)}
@media(max-width:1023px){
  header nav{display:flex}
  header nav > *:not(.nav-signin){display:none}
}
