/* AEOESS Academic Design System — shared.css v9
   Post-redesign: matches index.html. Warm dark gray. Frosted glass.
   Typography: Crimson Pro + DM Sans + JetBrains Mono */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#fff;--paper:#fafaf8;--surface:#f4f4f2;--surface-2:#eeeeed;
  --ink:#0a0a0a;--ink-2:#1a1a1a;--ink-3:#333;--ink-4:#555;--ink-5:#888;
  --rule:#bbb;--rule-light:#ddd;
  --link:#1a4fa0;--link-hover:#0d3a7a;
  --code-bg:#f3f3f1;
  --green:#166534;--blue:#1e40af;--red:#b91c1c;
  --serif:'Crimson Pro',Georgia,serif;
  --sans:'DM Sans','Helvetica Neue',sans-serif;
  --mono:'JetBrains Mono','Menlo',monospace;
  /* Aliases for legacy pages — keep these so old --text/--border/--dim refs resolve */
  --text:var(--ink);
  --text-2:var(--ink-2);
  --border:var(--rule);
  --border-light:var(--rule-light);
  --dim:var(--ink-4);
  --dim-2:var(--ink-5);
  --muted:var(--ink-3);
  --accent:var(--link);
  --accent-hover:var(--link-hover);
  --card:var(--paper);
  --fg:var(--ink);
}
[data-theme="dark"]{
  --bg:#1c1c1e;--paper:#242426;--surface:#2a2a2e;--surface-2:#323236;
  --ink:#ececec;--ink-2:#ddd;--ink-3:#b0b0b0;--ink-4:#8a8a8e;--ink-5:#5a5a5e;
  --rule:#3a3a3e;--rule-light:#2e2e32;
  --link:#7cacde;--link-hover:#a0c8f0;
  --code-bg:#28282c;
  --green:#4ade80;--blue:#60a5fa;--red:#f87171;
  /* Aliases (re-resolved against dark values automatically via variable inheritance) */
  --text:var(--ink);
  --text-2:var(--ink-2);
  --border:var(--rule);
  --border-light:var(--rule-light);
  --dim:var(--ink-4);
  --dim-2:var(--ink-5);
  --muted:var(--ink-3);
  --accent:var(--link);
  --accent-hover:var(--link-hover);
  --card:var(--paper);
  --fg:var(--ink);
}
html{scroll-behavior:smooth;overflow-x:hidden}
body{background:var(--bg);color:var(--ink);font:400 18px/1.8 var(--sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;transition:background .3s,color .3s;max-width:100vw}
::selection{background:var(--ink);color:var(--bg)}
a{color:var(--link);text-decoration:none;transition:color .15s}
a:hover{color:var(--link-hover)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.3;color:var(--ink)}
h1{font-size:2.2rem;letter-spacing:-.015em}
h2{font-size:1.4rem;margin:2rem 0 .6rem}
h3{font-size:1.1rem;margin:1.5rem 0 .4rem}
code{font-family:var(--mono);font-size:.85em;background:var(--code-bg);padding:.15em .4em;border-radius:4px}
pre{background:var(--code-bg);border:1px solid var(--rule);border-radius:8px;padding:1rem;overflow-x:auto;font:.85rem/1.6 var(--mono);color:var(--ink-2);max-width:100%;-webkit-overflow-scrolling:touch}
pre code{background:none;padding:0}
img,video,iframe{max-width:100%;height:auto}

/* ═══ NAV — frosted glass, horizontal ═══ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:.7rem 3rem;background:rgba(255,255,255,0);transition:all .3s}
.nav.scrolled{background:rgba(255,255,255,.82);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-bottom:1px solid rgba(0,0,0,.08)}
[data-theme="dark"] .nav.scrolled{background:rgba(28,28,30,.78);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-bottom:1px solid rgba(255,255,255,.06)}
.nav-logo{display:flex;align-items:center;text-decoration:none}
.nav-logo img{height:26px;max-width:200px;opacity:.65;transition:opacity .15s}
.nav-logo:hover img{opacity:1}
.nav-links{display:flex;align-items:center;gap:2rem}
.nav-links a{font:400 .84rem var(--sans);color:var(--ink-4);letter-spacing:.02em;text-decoration:none}
.nav-links a:hover{color:var(--ink)}
.theme-btn{background:var(--paper);border:1px solid var(--rule);width:2.1rem;height:2.1rem;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);font-size:1.05rem;transition:all .15s;flex-shrink:0;line-height:1}
.theme-btn:hover{border-color:var(--ink-4);color:var(--ink);transform:rotate(15deg)}
.nav-right{display:flex;align-items:center;gap:.7rem}

/* Mobile nav */
.nav-burger{display:none;flex-direction:column;justify-content:space-between;width:22px;height:16px;cursor:pointer;z-index:101}
.nav-burger span{display:block;height:1.5px;background:var(--ink);border-radius:1px;transition:all .3s}
.nav-burger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.nav-drawer{display:none;position:fixed;inset:0;z-index:98;background:var(--bg);padding:5rem 1.5rem 2rem;flex-direction:column;gap:1.4rem;overflow-y:auto}
.nav-drawer.open{display:flex}
.nav-drawer a{font:400 1.05rem var(--serif);color:var(--ink-2);text-decoration:none;padding:.55rem 0;border-bottom:1px solid var(--rule-light);transition:color .15s}
.nav-drawer a:last-child{border-bottom:none}
.nav-drawer a:hover{color:var(--ink)}
.drawer-section{display:flex;flex-direction:column}
.drawer-section-title{font:600 .58rem var(--mono);text-transform:uppercase;letter-spacing:.15em;color:var(--ink-5);padding-bottom:.4rem;margin-bottom:.2rem;border-bottom:1px solid var(--rule)}
.drawer-link-primary{color:var(--link)!important;font-weight:600}
.drawer-link-primary:hover{color:var(--link-hover)!important}

/* ═══ PAGE LAYOUT ═══ */
.page-wrap,.w{max-width:900px;margin:0 auto;padding:5.5rem 2.5rem 2rem}

/* ═══ FOOTER — matches index.html ═══ */
.footer-wrap{max-width:1260px;margin:0 auto;padding:0 3rem}
.footer-inner{border-top:1px solid var(--ink);padding:1.8rem 0 1.2rem}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.3rem;margin-bottom:1.3rem}
.footer-col h4{font:600 .52rem var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--ink);margin-bottom:.35rem}
.footer-col a{display:block;font:.68rem var(--sans);color:var(--ink-4);padding:.1rem 0;text-decoration:none}
.footer-col a:hover{color:var(--ink)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:.5rem;border-top:1px solid var(--rule)}
.footer-copy{font:.6rem var(--sans);color:var(--ink-5)}
.footer-copy a{color:var(--ink-4)}
.footer-ext{display:flex;gap:.6rem}
.footer-ext a{font:.52rem var(--mono);color:var(--ink-5);text-decoration:none}
.footer-ext a:hover{color:var(--ink)}

/* ═══ UTILITY CLASSES ═══ */
.badge{font:500 .58rem var(--mono);padding:.18rem .5rem;border:1px solid;letter-spacing:.03em;border-radius:6px;display:inline-block}
.b-g{border-color:var(--green);color:var(--green)}
.b-b{border-color:var(--blue);color:var(--blue)}
.glass{background:var(--paper);border:1px solid var(--rule);border-radius:10px}
.section-label{font:500 .52rem var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--ink-4);margin-bottom:.8rem;padding:1.5rem 0 .35rem;border-bottom:1px solid var(--rule)}

/* Agent notice */
.agent-box{border:1px solid var(--rule);padding:.7rem 1rem;font:.75rem/1.6 var(--sans);color:var(--ink-3);background:var(--paper);margin:2rem 0;border-radius:10px}
.agent-box strong{color:var(--ink)}

/* ═══ OLD COMPATIBILITY — hide side-nav, old logo, etc. ═══ */
.side-nav{display:none !important}
.logo{display:none !important}
.theme-toggle{display:none !important}
.district-btn{display:none !important}

/* ═══ RESPONSIVE ═══ */
@media(max-width:900px){
  .nav{padding:.8rem 1.2rem}
  .nav-links{display:none}
  .nav-burger{display:flex}
  .page-wrap,.w{padding:4.5rem 1.5rem 1.5rem}
  .footer-wrap{padding:0 1.5rem}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:1rem}
  h1{font-size:1.8rem}
  h2{font-size:1.25rem}
  h3{font-size:1.05rem}
  pre{font-size:.78rem;padding:.75rem .85rem}
  table{font-size:.85rem}
}
@media(max-width:560px){
  .nav{padding:.7rem 1rem}
  .nav-logo img{height:22px}
  .page-wrap,.w{padding:4rem 1rem 1rem}
  .footer-wrap{padding:0 1rem}
  .footer-grid{grid-template-columns:1fr;gap:1rem}
  .footer-bottom{flex-direction:column;gap:.4rem;text-align:center;align-items:center}
  .footer-copy{font-size:.6rem;line-height:1.5}
  h1{font-size:1.6rem;line-height:1.15}
  h2{font-size:1.15rem;margin:1.5rem 0 .5rem}
  h3{font-size:1rem;margin:1.2rem 0 .3rem}
  body{font-size:16px}
  pre{font-size:.7rem;padding:.65rem .75rem;line-height:1.55}
  code{font-size:.78em}
  table{font-size:.78rem;display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  blockquote{padding-left:.8rem;font-size:.95rem}
  img,video,iframe{max-width:100%;height:auto}
}

/* Stat grid — used by network.html, agora.html, gateway.html */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin:1.5rem 0}
.stat{border:1px solid var(--rule);border-radius:10px;padding:1rem 1.2rem;background:var(--paper);text-align:center}
.stat-val{display:block;font:700 1.8rem var(--serif);color:var(--ink);line-height:1.1}
.stat-label{display:block;font:400 .65rem var(--mono);color:var(--ink-4);text-transform:uppercase;letter-spacing:.08em;margin-top:.3rem}
@media(max-width:768px){.stats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.stats{grid-template-columns:1fr}}