/* Optical glass layers tuned to the AMHI navigation reference. */
:root{--glass-paper:rgba(248,246,239,.62);--glass-edge:rgba(255,255,255,.76);--glass-ink:#272824;--glass-shadow:rgba(38,34,27,.16)}
.site-header{position:fixed;z-index:100;inset:15px 3.2% auto;height:72px;padding:0 clamp(22px,3vw,42px);display:grid;grid-template-columns:minmax(170px,1fr) auto minmax(145px,1fr);align-items:center;border:1px solid var(--glass-edge);border-radius:42px;background:var(--glass-paper);backdrop-filter:blur(28px) saturate(190%);-webkit-backdrop-filter:blur(28px) saturate(190%);box-shadow:0 12px 40px var(--glass-shadow),inset 0 1px 0 rgba(255,255,255,.75),inset 0 -1px 0 rgba(255,255,255,.13);isolation:isolate;overflow:hidden;transition:background-color .28s,border-color .28s,box-shadow .28s}
.site-header:before{content:"";position:absolute;z-index:-1;inset:0;border-radius:inherit;background:radial-gradient(ellipse 58% 175% at 12% -36%,rgba(255,255,255,.62),transparent 72%),radial-gradient(ellipse 32% 90% at 89% 140%,rgba(255,255,255,.24),transparent 76%),linear-gradient(155deg,rgba(255,255,255,.20),transparent 46%,rgba(255,255,255,.07));pointer-events:none}
.site-header:after{content:"";position:absolute;z-index:2;left:5%;right:5%;top:1px;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.96) 22%,rgba(255,255,255,.52) 76%,transparent);filter:blur(.3px);pointer-events:none}.site-header>*{position:relative;z-index:1}
.site-header .brand{gap:11px;font-size:28px;letter-spacing:-1.4px}.site-header .brand-isotipo{width:30px;height:29px}.brand-wordmark img{width:clamp(112px,10vw,142px)}
.site-header nav{justify-self:center;align-self:stretch;display:flex;align-items:center;gap:clamp(12px,2.25vw,32px)}.nav-link{position:relative;display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 3px;color:var(--glass-ink);font-size:11px;letter-spacing:.015em;white-space:nowrap;transition:color .2s,background-color .25s,box-shadow .25s,border-color .25s}.nav-link svg{display:none}.nav-link:before{content:"";position:absolute;inset:3px -9px;border-radius:24px;background:radial-gradient(ellipse 72% 95% at 50% 0,rgba(255,255,255,.34),transparent 78%);opacity:0;transition:opacity .2s;pointer-events:none}.nav-link:hover:before,.nav-link:focus-visible:before{opacity:1}.nav-link:hover{color:var(--accent)}
.site-header .nav-link-cta{padding-inline:22px;min-height:39px;border:1px solid rgba(255,255,255,.46);border-radius:999px;background:linear-gradient(145deg,rgba(255,255,255,.28),rgba(255,255,255,.06) 40%),rgba(194,90,49,.78);color:#fffdf8;box-shadow:inset 0 1px 0 rgba(255,255,255,.49),0 4px 14px rgba(139,69,37,.16);text-shadow:0 1px 5px rgba(48,33,24,.22)}.site-header .nav-link-cta:hover{color:#fff;background-color:rgba(194,90,49,.95);box-shadow:inset 0 1px 0 #ffffffa6,0 5px 18px rgba(139,69,37,.24)}.site-header .edition{justify-self:end;font-size:8px;letter-spacing:1.4px}.site-header .edition i{width:6px;height:6px}
.theme-toggle{z-index:120;right:23px;bottom:22px;min-width:45px;height:45px;border:1px solid rgba(255,255,255,.7);background:rgba(248,246,239,.68);backdrop-filter:blur(22px) saturate(180%);-webkit-backdrop-filter:blur(22px) saturate(180%);box-shadow:0 8px 28px rgba(32,30,25,.13),inset 0 1px 0 rgba(255,255,255,.9);transition:background .25s,transform .2s,border-color .25s}.theme-toggle:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.95)}
html[data-theme=dark]{color-scheme:dark;--paper:#000;--ink:#f2efe9;--muted:#b9b6ae;--accent:#f1a782;--line:rgba(255,255,255,.20);--soft-orbit:rgba(255,255,255,.17);--glass-paper:rgba(13,13,13,.64);--glass-edge:rgba(255,255,255,.23);--glass-ink:#f2efe9;--glass-shadow:rgba(0,0,0,.52)}
html[data-theme=dark] .lab{background:#000}html[data-theme=dark] .theme-toggle{background:rgba(15,15,15,.73);color:#f5f3ee;border-color:rgba(255,255,255,.25);box-shadow:0 8px 28px #000,inset 0 1px 0 rgba(255,255,255,.17)}html[data-theme=dark] .theme-toggle:hover{border-color:rgba(255,255,255,.52)}html[data-theme=dark] .site-header:before{background:radial-gradient(ellipse 58% 175% at 12% -36%,rgba(255,255,255,.16),transparent 72%),radial-gradient(ellipse 32% 90% at 89% 140%,rgba(255,255,255,.09),transparent 76%),linear-gradient(155deg,rgba(255,255,255,.08),transparent 46%,rgba(255,255,255,.025))}html[data-theme=dark] .site-header:after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.53) 22%,rgba(255,255,255,.22) 76%,transparent)}html[data-theme=dark] .brand .brand-isotipo{filter:none}html[data-theme=dark] .site-header .nav-link-cta{background:linear-gradient(145deg,rgba(255,255,255,.19),rgba(255,255,255,.025) 44%),rgba(153,66,37,.78)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.site-header,.theme-toggle{background:rgba(245,242,233,.94)}html[data-theme=dark] .site-header,html[data-theme=dark] .theme-toggle{background:rgba(0,0,0,.94)}}
@media(max-width:900px){.site-header{grid-template-columns:minmax(135px,1fr) auto;height:65px;padding-inline:23px;inset-inline:2.1%}.site-header>.edition{display:none}.site-header nav{justify-self:end;gap:clamp(13px,2.3vw,23px)}.site-header .brand{font-size:25px;gap:8px}.site-header .brand-isotipo{width:27px;height:26px}.brand-wordmark img{width:116px}.nav-link{font-size:10px}.site-header .nav-link-cta{padding-inline:17px;min-height:37px}}
@media(max-width:700px){
  .site-header{inset:13px auto auto 13px;width:auto;height:auto;min-height:0;padding:0;display:block;background:transparent;border:0;border-radius:0;backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;overflow:visible;isolation:auto}
  .site-header:before,.site-header:after{display:none}
  .site-header .brand{height:48px;gap:8px;padding:0 14px;background:var(--glass-paper);border:1px solid var(--glass-edge);border-radius:999px;backdrop-filter:blur(24px) saturate(190%);-webkit-backdrop-filter:blur(24px) saturate(190%);box-shadow:0 8px 28px var(--glass-shadow),inset 0 1px 0 rgba(255,255,255,.78);font-size:22px}
  .site-header .brand-isotipo{width:23px;height:22px}.brand-wordmark img{width:104px}
  .site-header nav{position:fixed;z-index:110;left:max(12px,calc(50% - 150px));right:auto;top:auto;bottom:calc(13px + env(safe-area-inset-bottom));width:min(252px,calc(100vw - 82px));height:61px;justify-self:auto;display:flex;align-items:center;justify-content:space-around;gap:5px;padding:7px;border:1px solid var(--glass-edge);border-radius:999px;background:var(--glass-paper);backdrop-filter:blur(30px) saturate(200%);-webkit-backdrop-filter:blur(30px) saturate(200%);box-shadow:0 11px 36px var(--glass-shadow),inset 0 1px 0 rgba(255,255,255,.85),inset 0 -1px 0 rgba(255,255,255,.16);isolation:isolate}
  .site-header nav:before{content:"";position:absolute;z-index:-1;inset:0;border-radius:inherit;background:radial-gradient(ellipse 70% 130% at 15% -35%,rgba(255,255,255,.57),transparent 73%),radial-gradient(ellipse 44% 95% at 90% 130%,rgba(255,255,255,.25),transparent 78%),linear-gradient(145deg,rgba(255,255,255,.17),transparent 55%);pointer-events:none}
  .site-header nav:after{content:"";position:absolute;top:1px;left:10%;right:10%;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.93),transparent);pointer-events:none}
  .site-header .nav-link,.site-header .nav-link-cta{isolation:isolate;overflow:hidden;width:48px;min-width:0;height:45px;min-height:45px;flex:1;padding:0;display:grid;place-items:center;border:1px solid transparent;border-radius:999px;background:transparent;box-shadow:none;color:var(--glass-ink);text-shadow:none}
  .site-header nav .nav-link:first-child{display:grid}
  .site-header .nav-link:before{inset:0;background:radial-gradient(ellipse 75% 65% at 50% 0,rgba(255,255,255,.55),transparent 100%),linear-gradient(135deg,rgba(255,255,255,.24),transparent 62%);border:1px solid rgba(255,255,255,.43);box-shadow:inset 0 1px 0 rgba(255,255,255,.77),0 3px 10px rgba(39,35,27,.08);opacity:0}
  .site-header .nav-link:hover:before,.site-header .nav-link:focus-visible:before,.site-header .nav-link[aria-current=page]:before{opacity:1}
  .site-header .nav-link svg{position:relative;z-index:1;display:block;width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}
  .site-header .nav-link-cta{color:var(--glass-ink)}.site-header .nav-link-cta:hover{background:transparent;color:var(--accent)}
  .site-header .nav-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
  .theme-toggle{right:13px;bottom:calc(20px + env(safe-area-inset-bottom));min-width:47px;width:47px;height:47px;padding:0;justify-content:center;border-radius:50%}
  .theme-toggle #theme-label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.theme-toggle #theme-icon{font-size:20px}
  .chapter-nav{display:none}.no-script{padding-right:72px}
}
@media(max-width:700px) and (max-height:480px) and (orientation:landscape){.site-header{inset:8px auto auto 9px}.site-header .brand{height:39px}.site-header .brand-wordmark img{width:84px}.site-header nav{bottom:9px;height:49px}.site-header .nav-link,.site-header .nav-link-cta{height:36px;min-height:36px}.site-header .nav-link svg{width:16px;height:16px}.theme-toggle{bottom:11px;right:11px;width:40px;height:40px}}
@media(prefers-reduced-motion:reduce){.site-header,.site-header *,.theme-toggle{transition:none!important}}