/* Fybr · shared base for the Thread pages (tokens, type, controls, header,
   rail, close, footer). Page styles live in home.css, development.css, ...
   Tokens are the brand's (brand-assets/README.txt). The site's display serif
   (Fraunces) is kept so this page sits with Development, Operations and About. */

@font-face{font-family:Fraunces;src:url('/assets/fonts/Fraunces-Regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Fraunces;src:url('/assets/fonts/Fraunces-Italic.ttf') format('truetype');font-style:italic;font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url('/assets/fonts/Inter-variable.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url('/assets/fonts/JetBrainsMono-variable.woff2') format('woff2');font-weight:100 800;font-display:swap}

:root{
  --ground:#0A0E12; --deep:#07090C; --raised:#10151B; --card:#141A21;
  --brass:#E8B873; --brass-hi:#F1C991; --teal:#5FA8B8;
  --ink:#EAF0F6; --ink-mid:#9BA8B6; --ink-low:#5C6875; --ink-low-text:#808D9B;   /* brand text-low fails AA at small sizes; text uses the lighter step */
  --line:rgba(234,240,246,.12); --line-soft:rgba(234,240,246,.07);
  --serif:Fraunces,Georgia,serif; --sans:Inter,system-ui,-apple-system,Segoe UI,sans-serif; --mono:'JetBrains Mono',ui-monospace,monospace;
  --gutter:clamp(20px,4.2vw,64px);
  --ease-out:cubic-bezier(.23,1,.32,1);
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:auto}
body{margin:0;background:var(--ground);color:var(--ink);font:400 1rem/1.6 var(--sans);letter-spacing:.005em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--serif);font-weight:400;margin:0;text-wrap:balance;letter-spacing:-.02em}
h1 em,h2 em,h3 em{font-style:italic;color:var(--brass)}
p{margin:0;text-wrap:pretty}
::selection{background:rgba(232,184,115,.35);color:#fff}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px;border-radius:2px}
.wrap{width:min(1320px,100% - 2*var(--gutter));margin-inline:auto}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:fixed;left:12px;top:-60px;z-index:100;background:var(--brass);color:#152029;padding:10px 14px;border-radius:3px;font-weight:600}
.skip:focus{top:12px}

/* ---------- shared controls ---------- */
.button{display:inline-flex;align-items:center;gap:22px;background:var(--brass);color:#152029;border:1px solid var(--brass);border-radius:3px;padding:14px 20px;font:550 .92rem/1 var(--sans);white-space:nowrap;transition:background-color .16s var(--ease-out),transform .12s var(--ease-out)}
.button:hover{background:var(--brass-hi)}
.button:active{transform:translateY(1px)}
.text-link{display:inline-flex;align-items:center;gap:18px;font-size:.95rem;line-height:1.4;padding:6px 0;border-bottom:1px solid rgba(234,240,246,.45);transition:border-color .16s var(--ease-out),color .16s var(--ease-out)}
.text-link:hover{border-color:var(--brass);color:#fff}
.eyebrow,.stage-kicker,.proof-kind,.owner-label,.world-caption,.pull-value,.owner-view__title,.pull-input label{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;font-weight:500}
.eyebrow{color:#8FC6D3}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px 30px}

/* ---------- header ---------- */
.site-header{position:fixed;inset:0 0 auto 0;z-index:40;height:var(--header-h);transition:background-color .3s var(--ease-out),border-color .3s var(--ease-out);border-bottom:1px solid transparent}
.site-header.is-solid{background:rgba(10,14,18,.96);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-color:var(--line-soft)}
.nav-row{height:100%;display:flex;align-items:center;gap:36px;padding-inline:var(--gutter)}
.brand img{height:30px;width:auto}
.desktop-nav{margin-left:auto;display:flex;gap:30px;font-size:.9rem;color:var(--ink-mid)}
.desktop-nav a{padding:6px 0;transition:color .16s var(--ease-out)}
.desktop-nav a:hover{color:var(--ink)}
.button--nav{padding:11px 16px;gap:16px;font-size:.86rem}
.mobile-menu{display:none;position:relative}
.mobile-menu summary{list-style:none;cursor:pointer;font:500 .85rem/1 var(--sans);border:1px solid var(--line);padding:11px 14px;border-radius:3px}
.mobile-menu summary::-webkit-details-marker{display:none}
.mobile-menu nav{position:absolute;right:0;top:calc(100% + 10px);display:grid;min-width:210px;background:var(--raised);border:1px solid var(--line);border-radius:4px;padding:8px}
.mobile-menu nav a{padding:12px 12px;border-radius:3px}
.mobile-menu nav a:hover{background:var(--card)}
.menu-motion{margin-top:6px;padding:12px;border:0;border-top:1px solid var(--line-soft);border-radius:0;background:none;color:var(--ink-mid);font:500 .9rem/1.2 var(--sans);text-align:left;cursor:pointer}
.menu-motion:hover{color:var(--ink)}

/* ============================ THE RAIL ============================ */
main{position:relative}
.rail{position:absolute;left:0;right:0;top:0;height:0;pointer-events:none;z-index:2}
.rail-svg{position:absolute;left:0;top:0;overflow:visible}
.rail-line{fill:none;stroke:url(#rail-grad);stroke-width:1.4;stroke-linecap:round}
.rail-glow{fill:none;stroke:url(#rail-grad);stroke-width:6;stroke-linecap:round;opacity:.16}
.rail-knots circle{fill:var(--ground);stroke-width:1.4;transition:fill .5s var(--ease-out)}
.rail-knots circle.is-on{fill:currentColor}
.no-js .rail,.rail[hidden]{display:none}

/* ============================== CLOSE ============================= */
.close{position:relative;padding:clamp(90px,11vw,160px) 0;background:var(--ground);border-top:1px solid var(--line-soft);overflow:hidden}
.close-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(30px,5vw,80px);align-items:center}
.close-mark{position:relative;aspect-ratio:3/2;touch-action:pan-y;cursor:grab}
.close-mark__img{position:absolute;inset:0;width:100%;height:100%}
.close-mark__canvas{position:absolute;inset:0;width:100%;height:100%;display:none}
.strings-on .close-mark__canvas{display:block}
.strings-on .close-mark__img{visibility:hidden}
.close-mark__hint{position:absolute;left:8%;bottom:4%;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-low-text);opacity:0;transition:opacity .6s var(--ease-out)}
.strings-on .close-mark__hint{opacity:1}
.close-mark__hint.is-done{opacity:0}
.close-copy h2{font-size:clamp(2.6rem,5vw,4.8rem);line-height:.98;letter-spacing:-.03em;margin-bottom:24px}
.close-copy p{color:var(--ink-mid);max-width:30rem;margin-bottom:30px;line-height:1.6}
.email-link{color:var(--ink-mid);border-bottom:1px solid var(--line);padding:4px 0;font-size:.95rem}
.email-link:hover{color:var(--ink)}
.close-copy .small{margin:26px 0 0;font-size:.82rem;color:var(--ink-low-text)}

/* ============================= FOOTER ============================= */
.site-footer{background:var(--deep);border-top:1px solid var(--line-soft);padding:48px 0 30px;font-size:.88rem;color:var(--ink-mid)}
.footer-row{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.footer-row .brand img{height:26px}
.footer-links,.legal-links{display:flex;gap:26px;flex-wrap:wrap}
.footer-links a:hover,.legal-links a:hover{color:var(--ink)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:34px;padding-top:24px;border-top:1px solid var(--line-soft);font-size:.8rem;color:var(--ink-low-text)}
.motion-button{background:none;border:1px solid var(--line);color:var(--ink-mid);font:500 .76rem/1 var(--sans);padding:9px 12px;border-radius:3px;cursor:pointer}
.motion-button:hover{color:var(--ink);border-color:var(--ink-low)}


/* ======================= SHARED COMPONENTS ======================= */
.scene-caption{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(234,240,246,.82);background:rgba(6,10,16,.55);padding:5px 9px;border-radius:2px;margin:0}
.disclosure{border-top:1px solid var(--line)}
.disclosure:last-of-type{border-bottom:1px solid var(--line)}
.disclosure summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:16px 0;font-size:.95rem;color:var(--ink);transition:color .16s var(--ease-out)}
.disclosure summary::-webkit-details-marker{display:none}
.disclosure summary::after{content:"";width:9px;height:9px;flex:none;border-right:1.5px solid var(--brass);border-bottom:1.5px solid var(--brass);transform:rotate(45deg) translate(-2px,-2px);transition:transform .25s var(--ease-out)}
.disclosure[open] summary::after{transform:rotate(-135deg) translate(-2px,-2px)}
.disclosure summary:hover{color:var(--brass)}
.detail-body{padding:0 0 18px;color:var(--ink-mid);font-size:.94rem;line-height:1.65}
.detail-body ul{margin:0;padding-left:18px;display:grid;gap:6px}
.detail-body p{margin-top:10px}
.detail-body a{color:var(--ink);border-bottom:1px solid rgba(232,184,115,.6)}
.detail-body a:hover{color:var(--brass)}

/* ============================ RESPONSIVE ============================ */
@media (max-width:1080px){
  .desktop-nav{display:none}
  .mobile-menu{display:block}
  .button--nav{margin-left:auto}
  .close-grid{grid-template-columns:1fr}
  .close-mark{order:2;width:min(100%,420px);margin:6px auto 0}   /* the action first; the mark follows it, smaller */
}
@media (max-width:760px){
  :root{--header-h:64px}
  .button--nav{display:none}
  .mobile-menu{margin-left:auto}
  .brand img{height:26px}
  .footer-bottom{flex-direction:column;align-items:start}
  .close{padding:72px 0 56px}
  .close-mark{width:min(78%,300px)}
}
@media (prefers-reduced-motion:reduce){
  .js [data-reveal]{clip-path:none;transition:none}
}