/* ================================================================
   CRIS LANDING — HEADER / NAV
   Rules: no inline styles, no !important, no media queries.
          State: data-scrolled and data-open on .plx-header.
          Responsive values are set per range in responsive.css
          under ".plx-header":
     --hdr-toggler-display --hdr-links-display --hdr-links-dir
     --hdr-links-gap --hdr-links-pad --hdr-links-w --hdr-actions-display
     --hdr-actions-wrap --hdr-actions-gap --hdr-actions-pad
     --hdr-actions-w --hdr-actions-justify --hdr-inner-wrap --hdr-logo-h
   ================================================================ */

.plx-header {
  /* surfaces */

  /* shape + type */

  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  transition: background var(--t-default), box-shadow var(--t-default);
  z-index: var(--z-1000);
}
.plx-header[data-scrolled="true"] {
  background: var(--bg);
  box-shadow: 0 2px 36px var(--black-a65);
}

.plx-nav-inner {
  align-items: center;
  display: flex;
  flex-wrap: nowrap;
  padding-bottom: var(--sp-20);
  padding-top: var(--sp-20);
}
.plx-brand { align-items: center; display: flex; flex-shrink: 0; gap: var(--sp-12); }
.plx-header .logo img { height: var(--size-60); max-width: 100%; }
.plx-powered-link { display: block; }
.plx-powered { display: block; height: var(--size-60); width: auto; }

/* Links */
.plx-nav-links {
  align-items: center;
  display: flex;
  flex-direction: row;
  gap: var(--sp-2);
  list-style: none;
  margin: 0 auto;
  padding: 0;
  width: auto;
}
.plx-nav-link {
  border-radius: var(--br-inner);
  color: var(--t3);
  display: block;
  font-size: var(--fs-14);
  font-weight: 500;
  padding: var(--sp-6) var(--sp-16);
  transition: var(--t-fast), background-color var(--t-default) ease, color var(--t-default) ease;
}
.plx-nav-link:hover { background: var(--bg-mid); color: var(--t1); }
.plx-nav-link[aria-current="page"] { color: var(--lime); }

/* Actions */
.plx-nav-actions {
  align-items: center;
  display: flex;
  flex-shrink: 0;
  flex-wrap: nowrap;
  gap: var(--sp-10);
  justify-content: flex-start;
  padding: 0;
  width: auto;
}
.plx-nav-login {
  align-items: center;
  border: 1px solid var(--border-md);
  display: inline-flex;
  border-radius: var(--br-inner);
  color: var(--t3);
  font-size: var(--fs-14);
  font-weight: 500;
  padding: var(--sp-12) var(--sp-20);
  transition: var(--t-fast), border-color var(--t-default) ease, color var(--t-default) ease;
}
.plx-nav-login:hover { border-color: var(--lime-bd); color: var(--t1); }

/* Collapsible panels (menu collapsed ranges): closed = zero height, hidden; open animates in */
.plx-nav-links,
.plx-nav-actions {
  max-height: none;
  opacity: 1;
  overflow: visible;
  transition: max-height var(--t-medium) cubic-bezier(0.4,0,0.2,1), opacity var(--t-medium) cubic-bezier(0.4,0,0.2,1), padding var(--t-medium) cubic-bezier(0.4,0,0.2,1), visibility var(--t-medium);
  visibility: visible;
}
.plx-header[data-open="false"] .plx-nav-links,
.plx-header[data-open="false"] .plx-nav-actions { padding-bottom: 0; padding-top: 0; }
.plx-header[data-open="true"] .plx-nav-links,
.plx-header[data-open="true"] .plx-nav-actions {
  max-height: var(--size-420);
  opacity: 1;
  visibility: visible;
}

/* Hamburger */
.plx-toggler {
  background: transparent;
  border: 1px solid var(--border-md);
  border-radius: var(--br-inner);
  display: none;
  flex-direction: column;
  gap: var(--sp-4);
  height: var(--size-40);
  justify-content: center;
  margin-left: auto;
  padding: var(--sp-6) var(--sp-12);
  width: var(--size-40);
}
.plx-toggler span {
  background: var(--t2);
  border-radius: var(--br-inner);
  display: block;
  height: 2px;
  transition: var(--t-default);
  width: 100%;
}
.plx-header[data-open="true"] .plx-toggler span:nth-child(1) { transform: translateY(var(--size-7)) rotate(45deg); }
.plx-header[data-open="true"] .plx-toggler span:nth-child(2) { opacity: 0; }
.plx-header[data-open="true"] .plx-toggler span:nth-child(3) { transform: translateY(calc(var(--size-7) * -1)) rotate(-45deg); }