/* =========================================================
   LAYOUT — grid system, header, footer, structural shells
   ========================================================= */

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding-inline:var(--gutter);
}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12, 1fr);
  gap:20px;
}

/* ---------- Header ---------- */
.site-header{
  position:fixed; inset:0 0 auto 0;
  height:var(--header-h);
  z-index:500;
  display:flex; align-items:center;
  background:transparent;
  transition:background .35s ease, box-shadow .35s ease, height .35s ease, border-color .35s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-solid{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--border);
  box-shadow:0 8px 24px -18px rgba(13,47,111,.25);
  height:72px;
}
.header-inner{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-inline:var(--gutter);
  display:flex; align-items:center; justify-content:space-between;
  gap:24px;
}
.brand{ display:flex; align-items:center; gap:10px; flex:none; }
.brand svg{ height:30px; width:auto; }
.brand-word{
  font-family:var(--font-ui); font-weight:600; font-size:.95rem;
  color:var(--text); letter-spacing:-.01em; white-space:nowrap;
}
.site-header:not(.is-solid) .brand-word,
.site-header:not(.is-solid) .brand svg .logo-ink{ fill:var(--primary); }

.primary-nav{ display:flex; align-items:center; gap:2px; }
.primary-nav > ul{ display:flex; align-items:center; gap:4px; }
.nav-link{
  font-family:var(--font-ui); font-size:.9rem; font-weight:500;
  color:var(--text); padding:10px 14px; border-radius:8px;
  display:inline-flex; align-items:center; gap:6px;
  transition:background .2s ease, color .2s ease;
}
.nav-link:hover{ background:rgba(13,47,111,.06); }
.nav-item{ position:relative; }
.nav-caret{ width:9px; height:9px; transition:transform .25s ease; opacity:.6; }
.nav-item:hover .nav-caret{ transform:rotate(180deg); }

.header-actions{ display:flex; align-items:center; gap:10px; flex:none; }
.icon-btn{
  width:40px; height:40px; border-radius:10px; border:1px solid var(--border);
  background:rgba(255,255,255,.6); display:flex; align-items:center; justify-content:center;
  cursor:pointer; transition:border-color .2s ease, background .2s ease;
}
.icon-btn:hover{ border-color:var(--secondary); background:#fff; }

.scroll-progress{
  position:fixed; top:0; left:0; height:2px; background:var(--primary);
  width:0%; z-index:600; transition:width .1s linear;
}

/* ---------- Mega menu ---------- */
.mega-panel{
  position:absolute; top:calc(100% + 14px); left:50%; transform:translateX(-50%) translateY(6px);
  width:min(760px, 82vw);
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md);
  box-shadow:var(--panel-shadow-hover);
  padding:26px;
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .22s ease, transform .22s ease, visibility .22s;
  z-index:50;
}
.nav-item:hover .mega-panel,
.nav-item:focus-within .mega-panel{
  opacity:1; visibility:visible; pointer-events:auto; transform:translateX(-50%) translateY(0);
}
.mega-grid{ display:grid; grid-template-columns:1.1fr 1fr 1fr; gap:22px; }
.mega-col h4{ font-size:.72rem; text-transform:uppercase; letter-spacing:.1em; font-family:var(--font-mono); color:var(--secondary); margin-bottom:12px; }
.mega-col a{ display:block; padding:9px 0; font-size:.92rem; color:var(--text); border-bottom:1px solid var(--border); }
.mega-col a:last-child{ border-bottom:none; }
.mega-col a:hover{ color:var(--primary); }
.mega-feature{
  background:var(--background); border-radius:var(--radius-sm); padding:18px;
  display:flex; flex-direction:column; gap:8px; grid-column:1;
}
.mega-feature .eyebrow{ margin-bottom:2px; }

/* ---------- Search overlay ---------- */
.search-overlay{
  position:fixed; inset:0; background:rgba(13,47,111,.28);
  backdrop-filter:blur(4px);
  display:flex; align-items:flex-start; justify-content:center;
  padding-top:14vh;
  z-index:700; opacity:0; visibility:hidden; transition:opacity .25s ease, visibility .25s;
}
.search-overlay.is-open{ opacity:1; visibility:visible; }
.search-panel{
  width:min(640px,90vw); background:var(--surface); border-radius:var(--radius-md);
  box-shadow:var(--panel-shadow-hover); padding:8px; transform:translateY(-14px);
  transition:transform .3s ease;
}
.search-overlay.is-open .search-panel{ transform:translateY(0); }
.search-panel input{
  width:100%; border:none; background:transparent; padding:16px 18px;
  font-family:var(--font-ui); font-size:1.05rem; color:var(--text); outline:none;
}
.search-hint{ padding:10px 18px 16px; font-family:var(--font-mono); font-size:.72rem; color:var(--ink-muted); border-top:1px solid var(--border); }

/* ---------- Breadcrumbs ---------- */
.breadcrumb-bar{
  padding:calc(var(--header-h) + 26px) 0 18px;
  background:var(--background);
}
.breadcrumb-list{ display:flex; align-items:center; flex-wrap:wrap; gap:6px; font-family:var(--font-mono); font-size:.76rem; color:var(--ink-muted); }
.breadcrumb-list a:hover{ color:var(--primary); }
.breadcrumb-sep{ opacity:.5; }
.breadcrumb-list [aria-current="page"]{ color:var(--text); }

/* ---------- Page shells ---------- */
main{ display:block; }
.section{ padding-block:96px; position:relative; }
.section--tight{ padding-block:64px; }
.section--panel{
  background:var(--surface);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head.align-right{ margin-left:auto; text-align:right; }

/* ---------- Footer: Command Footer ---------- */
.command-footer{
  background:var(--primary);
  color:var(--text-light);
  padding-top:80px;
  position:relative;
  overflow:hidden;
}
.command-footer::before{
  content:'';
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom, black, transparent 75%);
  pointer-events:none;
}
.footer-statement{
  position:relative;
  border-bottom:1px solid rgba(255,255,255,.16);
  padding-bottom:56px;
  margin-bottom:48px;
}
.footer-statement h2{ color:var(--text-light); max-width:16ch; margin-bottom:20px; }
.footer-statement p{ color:rgba(255,255,255,.72); max-width:52ch; }

.footer-grid{
  position:relative;
  display:grid; grid-template-columns:1.3fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:52px;
}
.footer-col h4{
  font-family:var(--font-mono); font-size:.7rem; text-transform:uppercase; letter-spacing:.12em;
  color:rgba(255,255,255,.55); margin-bottom:16px;
}
.footer-col a, .footer-col p{ color:rgba(255,255,255,.85); font-size:.92rem; }
.footer-col ul li{ margin-bottom:10px; }
.footer-col ul a:hover{ text-decoration:underline; text-underline-offset:3px; }
.footer-office{ font-style:normal; color:rgba(255,255,255,.75); font-size:.9rem; line-height:1.7; }

.newsletter-row{
  display:flex; gap:10px; margin-top:14px; flex-wrap:wrap;
}
.newsletter-row input{
  flex:1 1 220px; background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.22);
  border-radius:8px; padding:12px 14px; color:#fff; font-family:var(--font-ui); font-size:.88rem;
}
.newsletter-row input::placeholder{ color:rgba(255,255,255,.5); }
.newsletter-row button{
  background:#fff; color:var(--primary); border:none; border-radius:8px; padding:12px 18px;
  font-family:var(--font-ui); font-weight:600; font-size:.85rem; cursor:pointer; transition:opacity .2s;
}
.newsletter-row button:hover{ opacity:.88; }

.footer-base{
  position:relative;
  border-top:1px solid rgba(255,255,255,.16);
  padding-block:22px;
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:.8rem; color:rgba(255,255,255,.6);
}
.footer-base a{ color:rgba(255,255,255,.6); }
.footer-base a:hover{ color:#fff; }
.footer-legal-links{ display:flex; gap:18px; flex-wrap:wrap; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px){
  .primary-nav{ display:none; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 720px){
  .footer-grid{ grid-template-columns:1fr; }
  .section{ padding-block:64px; }
  h1{ font-size:2.4rem; }
}