/* Hylē v4 · public shell: nav + footer. */
.pnav { position: fixed; z-index: var(--z-nav); top: 0; left: 0; right: 0; height: var(--nav-h); display: flex; align-items: center; transition: background-color var(--d-3) var(--ease-out), box-shadow var(--d-3), color var(--d-3), backdrop-filter var(--d-3); }
.pnav-inner { width: 100%; max-width: calc(var(--page-max) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; }
.pnav .wordmark { justify-self: start; height: 44px; }
.pnav-links { display: flex; align-items: center; gap: 4px; }
.pnav-links a { position: relative; display: inline-flex; align-items: center; height: 36px; padding: 0 12px; border-radius: var(--r-pill); font-size: var(--fs-ui); font-weight: 500; color: var(--ink-2); transition: color var(--d-2), background var(--d-2); }
.pnav-links a:hover { color: var(--ink); background: rgba(20,20,19,.05); }
.pnav-links a[aria-current="page"], .pnav-links a[aria-current="true"] { color: var(--ink); background: rgba(20,20,19,.05); }
.pnav-actions { justify-self: end; display: flex; align-items: center; gap: 6px; }
.pnav-menu-btn { display: none; }
/* Solid = frosted paper that hides what scrolls under it (97% + blur), a hairline and a soft drop (Audit-fix A: was 82%,
   which ghosted headings through the bar on 20+ pages). */
.pnav.is-solid { background: rgba(250,249,245,.97); -webkit-backdrop-filter: saturate(1.5) blur(20px); backdrop-filter: saturate(1.5) blur(20px); box-shadow: 0 1px 0 var(--hairline), 0 10px 24px -20px rgba(20,20,19,.35); }

/* Overlay variant: white over the field until the sheet scrolls under it. */
.pnav.on-field:not(.is-solid) { color: #fff; }
.pnav.on-field:not(.is-solid) .pnav-links a { color: #fff; }
.pnav.on-field:not(.is-solid) .pnav-links a:hover { color: #fff; background: rgba(255,255,255,.12); }
.pnav.on-field:not(.is-solid) .pnav-links a[aria-current="page"] { color: #fff; background: rgba(255,255,255,.12); }
.pnav.on-field:not(.is-solid) .btn-ghost { color: #fff; }
.pnav.on-field:not(.is-solid) .btn-ghost:hover { background: rgba(255,255,255,.14); }
.pnav.on-field:not(.is-solid) .pnav-cta { background: #fff; color: var(--ink); box-shadow: 0 1px 2px rgba(11,24,48,.25); }
.pnav.on-field:not(.is-solid) .icon-btn { color: #fff; }
.pnav.on-field:not(.is-solid) .icon-btn:hover { background: rgba(255,255,255,.14); }

.pnav.on-field.is-scrolled:not(.is-solid) { background: rgba(11,24,48,.42); -webkit-backdrop-filter: blur(18px) saturate(1.3); backdrop-filter: blur(18px) saturate(1.3); box-shadow: 0 1px 0 rgba(255,255,255,.12); }

/* Phone menu: full-height paper sheet with large brand links */
.pmenu { position: fixed; inset: 0; z-index: calc(var(--z-nav) + 1); background: var(--paper); display: flex; flex-direction: column; padding: 0 var(--gutter) calc(24px + env(safe-area-inset-bottom)); }
.pmenu[hidden] { display: none; }
.pmenu-top { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; }
.pmenu-links { display: flex; flex-direction: column; margin-top: 24px; border-top: 1px solid var(--hairline); }
.pmenu-links a { display: flex; align-items: center; justify-content: space-between; min-height: 64px; border-bottom: 1px solid var(--hairline); }
.pmenu-links a svg { width: 20px; height: 20px; color: var(--ink-3); }
.pmenu-foot { margin-top: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

/* Footer */
.pfoot { position: relative; z-index: 2; background: var(--paper); color: var(--ink-2); padding: 72px 0 32px; border-top: 1px solid var(--hairline); }
.pfoot-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 40px; }
.pfoot-brand p { margin-top: 14px; max-width: 34ch; font-size: var(--fs-ui); color: var(--ink-2); }
.pfoot-sources { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 6px; }
.pfoot h2 { font-size: var(--fs-small); font-weight: 500; color: var(--ink-3); margin-bottom: 14px; }
.pfoot ul { display: flex; flex-direction: column; gap: 2px; }
.pfoot li a { display: inline-flex; align-items: center; min-height: 32px; font-size: var(--fs-ui); color: var(--ink-2); transition: color var(--d-2); }
.pfoot li a:hover { color: var(--ink); }
.pfoot li a[aria-current="page"] { color: var(--ink); font-weight: 500; }
.pfoot-bottom { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--hairline); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; font-size: var(--fs-small); color: var(--ink-3); }
.pfoot-bottom .status { display: inline-flex; align-items: center; gap: 8px; }
.pfoot-bottom .status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 3px var(--success-tint); }
/* 10-09 C2: the binding disclaimer is a footer row on the grid's left edge (components.js puts it inside .container, before
   .pfoot-bottom). The direct-child rule is the fallback if a page renders it straight into the footer. */
.pfoot .v31-site-disclaimer { display: flex; align-items: flex-start; gap: 10px; max-width: 76ch; margin: 48px 0 0; padding: 0; background: none; border-radius: 0; font-size: var(--fs-small); line-height: var(--lh-desc); color: var(--ink-2); }
.pfoot .v31-site-disclaimer::before { content: ""; flex: none; width: 16px; height: 16px; margin-top: 1px; background: var(--ink-3);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 16v-4M12 8h.01'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 16v-4M12 8h.01'/%3E%3C/svg%3E") center / contain no-repeat; }
.pfoot .v31-site-disclaimer + .pfoot-bottom { margin-top: 16px; }
.pfoot > .v31-site-disclaimer { width: min(var(--page-max), 100% - var(--gutter) * 2); margin: 24px auto 0; }

@media (max-width: 960px) {
  .pnav-inner { grid-template-columns: 1fr auto; }
  .pnav-links { display: none; }
  .pnav-signin { display: none; }
  .pnav-menu-btn { display: inline-grid; }
  .pfoot-grid { grid-template-columns: 1fr 1fr; }
  .pfoot-brand { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .pfoot { padding-top: 56px; }
  .pfoot-grid { gap: 32px 16px; }
  .pfoot li a, .pfoot-bottom a { min-height: 44px; min-width: 44px; display: inline-flex; align-items: center; }
  .pfoot-bottom { gap: 4px 24px; }
  .pnav-cta { padding: 0 14px; }
}