/* ==========================================================================
   Flint & Flux static site base. Shared structure; each site sets its own
   tokens and theme in theme.css (loaded after this file).
   ========================================================================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--font-body);font-size:1.0625rem;line-height:1.65;color:var(--ink);background:var(--bg);text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-underline-offset:.15em}
a:hover{color:var(--link-hover)}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.15;margin:0 0 .5em;color:var(--head)}
h1{font-size:clamp(2.1rem,4.5vw,3.2rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.4rem)}
h3{font-size:1.35rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px}

.wrap{width:min(var(--wrap),100% - 32px);margin-inline:auto}
.narrow{width:min(780px,100% - 32px);margin-inline:auto}
.center{text-align:center}
.lead{font-size:1.2rem;color:var(--muted)}
.eyebrow{display:inline-block;font-size:.85rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:.5rem}
.section{padding:clamp(56px,8vw,96px) 0}
.section-tight{padding:clamp(40px,5vw,64px) 0}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ink);color:#fff;padding:10px 16px;border-radius:6px}
.skip-link:focus{top:12px;color:#fff}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.55em;font:700 1rem/1 var(--font-body);padding:.95em 1.5em;border-radius:var(--radius-btn);border:2px solid transparent;text-decoration:none;cursor:pointer;transition:transform .15s ease,background-color .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--btn-bg);color:var(--btn-ink)}
.btn-primary:hover{background:var(--btn-bg-hover);color:var(--btn-ink)}
.btn-ghost{background:transparent;border-color:currentColor;color:var(--ink)}
.btn-ghost:hover{background:rgba(0,0,0,.05);color:var(--ink)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:var(--header-bg);box-shadow:var(--header-shadow)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:var(--header-h)}
.brand{display:block;flex:0 0 auto}
.brand img{height:var(--logo-h);width:auto}
.nav{display:flex;align-items:center}
.nav ul{list-style:none;display:flex;gap:4px;margin:0;padding:0}
.nav a{display:block;padding:10px 14px;border-radius:8px;font-weight:700;text-decoration:none;color:var(--nav-ink)}
.nav a:hover,.nav a[aria-current="page"]{color:var(--nav-active);background:var(--nav-hover-bg)}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;line-height:1;padding:10px;color:var(--nav-ink);cursor:pointer;border-radius:8px}
.nav .has-sub{position:relative}
.nav .sub{position:absolute;top:100%;left:0;min-width:250px;background:#fff;border-radius:10px;box-shadow:0 14px 34px rgba(0,0,0,.14);padding:8px;display:none;flex-direction:column;gap:0}
.nav .sub a{color:var(--ink);font-weight:600}
.nav .has-sub:hover .sub,.nav .has-sub:focus-within .sub{display:flex}
@media (max-width:900px){
  .nav-toggle{display:block}
  .nav{position:absolute;left:0;right:0;top:100%;background:var(--header-bg);box-shadow:0 14px 24px rgba(0,0,0,.12);display:none}
  .nav.open{display:block}
  .nav ul{flex-direction:column;padding:8px 16px 16px;gap:0}
  .nav a{padding:12px 8px}
  .nav .sub{position:static;display:flex;box-shadow:none;background:transparent;padding:0 0 0 16px;min-width:0}
  .nav .sub a{color:var(--nav-ink);font-weight:500}
}

/* Cards and grids */
.grid{display:grid;gap:clamp(20px,3vw,32px)}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr))}
.card{background:var(--surface);border-radius:var(--radius);padding:clamp(20px,3vw,32px);box-shadow:var(--card-shadow)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,64px);align-items:center}
@media (max-width:860px){.split{grid-template-columns:1fr}}
.photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--card-shadow)}
.photo img{width:100%}

/* Page hero (interior pages) */
.page-hero{padding:clamp(48px,7vw,84px) 0 clamp(36px,5vw,56px);background:var(--page-hero-bg);color:var(--page-hero-ink)}
.page-hero h1{color:inherit;margin-bottom:.2em}
.page-hero p{margin:0;font-size:1.15rem;opacity:.9}

/* Article / prose */
.page-hero + .section,.page-hero + article.section{padding-top:clamp(32px,4vw,48px)}
.prose > figure:first-child{margin-top:0}
.prose{font-size:1.075rem}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose img{border-radius:var(--radius)}
.prose figure{margin:2em 0}
.prose figcaption{font-size:.9rem;color:var(--muted);margin-top:.5em}

/* FAQ / accordions */
.accordion details{border-bottom:1px solid var(--line);padding:18px 4px}
.accordion summary{cursor:pointer;font-weight:700;font-size:1.15rem;list-style:none;display:flex;justify-content:space-between;gap:16px}
.accordion summary::-webkit-details-marker{display:none}
.accordion summary>span{flex:1;min-width:0}
.accordion summary::after{content:"+";flex:0 0 1em;text-align:center;font-size:1.5rem;line-height:1;color:var(--accent)}
.accordion details[open] summary::after{content:"\2212"}
.accordion details p{margin:12px 0 0}

/* Footer */
.site-footer{background:var(--foot-bg);color:var(--foot-ink);padding:56px 0 0;font-size:.98rem}
.site-footer a{color:var(--foot-link)}
.site-footer a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding-bottom:40px}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr}}
.foot-grid h2{font-size:1.05rem;color:var(--foot-head);margin-bottom:.8em;letter-spacing:.04em}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{margin-bottom:6px}
.foot-logo{height:auto;width:200px;margin-bottom:14px}
.foot-bot{border-top:1px solid var(--foot-line);padding:18px 0 22px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;font-size:.9rem;color:var(--foot-muted)}
.foot-bot a{color:var(--foot-muted)}
.foot-bot a:hover{color:#fff}

/* Icon fallbacks while the Font Awesome kit loads */
.fa-solid,.fa-regular,.fa-brands,.fa-duotone{display:inline-block;min-width:1em}