/* Shared public navigation. Links remain in the HTML without JavaScript. */
.treo-site-header {
  --nav-ink: #1b2821;
  --nav-muted: #536158;
  --nav-rule: #d9e2da;
  --nav-accent: #355c47;
  position: relative;
  z-index: 20;
  color: var(--nav-ink);
  background: #f8faf7;
  border-bottom: 1px solid var(--nav-rule);
}
.treo-site-header--dark {
  --nav-ink: #f5f4ee;
  --nav-muted: #d5d5ca;
  --nav-rule: #ffffff26;
  --nav-accent: #d5bb95;
  position: absolute;
  inset: 0 0 auto;
  background: transparent;
  border-bottom: 0;
}
.treo-nav__inner {
  min-height: 94px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.treo-site-header--dark .treo-nav__inner {
  min-height: 100px;
  border-bottom: 1px solid var(--nav-rule);
}
.treo-nav__brand { display: inline-flex; flex: 0 0 auto; }
.treo-nav__logo { display: block; width: 174px; height: auto; }
.treo-site-header--dark .treo-nav__logo { width: 150px; }
.treo-nav__panel { display: flex; align-items: center; gap: 36px; }
.treo-nav__primary {
  display: flex;
  align-items: center;
  gap: 27px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.treo-site-header a { text-decoration: none; }
.treo-nav__link, .treo-nav__services > summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  color: var(--nav-ink);
  font-size: 14px;
  line-height: 1.4;
  font-weight: 650;
  white-space: nowrap;
  cursor: pointer;
}
.treo-nav__link:hover, .treo-nav__services > summary:hover { color: var(--nav-accent); }
.treo-nav__services { position: relative; }
.treo-nav__services > summary { list-style: none; }
.treo-nav__services > summary::-webkit-details-marker { display: none; }
.treo-nav__chevron { width: 13px; height: 13px; transition: transform .18s ease; }
.treo-nav__services[open] .treo-nav__chevron { transform: rotate(180deg); }
.treo-nav__popup {
  position: absolute;
  top: calc(100% + 13px);
  left: -23px;
  width: 358px;
  padding: 21px 10px 9px;
  border: 1px solid #3b433f;
  border-radius: 16px;
  background: #171d1b;
  color: #f7f6f1;
  box-shadow: 0 22px 55px #08130e30;
}
.treo-nav__label {
  margin: 0 15px 12px;
  color: #bca785;
  font-size: 10px;
  letter-spacing: .16em;
  font-weight: 750;
  text-transform: uppercase;
}
.treo-nav__services-list { padding: 0; margin: 0; list-style: none; }
.treo-nav__service-link {
  display: grid;
  grid-template-columns: 25px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 11px;
  padding: 16px 15px;
  border-radius: 9px;
  color: #f7f6f1;
  transition: background .18s ease;
}
.treo-nav__service-link:hover, .treo-nav__service-link[aria-current="page"] { background: #ffffff0a; }
.treo-nav__number { color: #ab9676; font-size: 10px; font-weight: 650; }
.treo-nav__service-link strong { display: block; font-size: 15px; font-weight: 650; line-height: 1.4; }
.treo-nav__service-link small { display: block; margin-top: 5px; color: #b6c0b7; font-size: 12px; line-height: 1.45; }
.treo-nav__arrow { color: #cab693; font-size: 17px; }
.treo-nav__all {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 47px;
  margin: 8px 15px 0;
  padding-block: 15px 10px;
  border-top: 1px solid #ffffff1a;
  color: #d9c4a2;
  font-size: 12px;
  line-height: 1.5;
  font-weight: 600;
}
.treo-nav__all:hover { color: #fff; }
.treo-nav__actions { display: flex; align-items: center; gap: 21px; }
.treo-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 17px;
  border: 1px solid #253c2e;
  border-radius: 8px;
  color: #fff;
  background: #1b2b22;
  font-size: 13px;
  line-height: 1.4;
  font-weight: 650;
  white-space: nowrap;
  transition: background .18s ease;
}
.treo-nav__cta:hover { background: #304737; }
.treo-site-header--dark .treo-nav__cta { background: #ece8de; border-color: #ece8de; color: #17211b; }
.treo-site-header--dark .treo-nav__cta:hover { background: #fff; }
.treo-nav__login { color: var(--nav-muted); font-size: 12px; font-weight: 600; white-space: nowrap; }
.treo-nav__login:hover { color: var(--nav-accent); }
.treo-nav__toggle { display: none; }
.treo-site-header :is(a, summary, button):focus-visible { outline: 2px solid #b68e59; outline-offset: 5px; }
.treo-nav__popup a:focus-visible { outline-color: #decaa7; outline-offset: -2px; }
.method__diagnostic-link {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  min-height: 44px;
  margin-top: 21px;
  color: #e2cba9;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  text-underline-offset: 6px;
}
.method__diagnostic-link:hover { color: #fff; text-decoration: underline; }
@media (max-width: 1200px) {
  .treo-nav__inner { gap: 25px; }
  .treo-nav__panel { gap: 25px; }
  .treo-nav__primary { gap: 21px; }
  .treo-nav__actions { gap: 16px; }
  .treo-nav__logo { width: 150px; }
}
@media (max-width: 1000px) {
  .treo-site-header--dark:not(.is-enhanced) { position: relative; background: #141716; }
  .treo-nav__inner { min-height: 76px; flex-wrap: wrap; gap: 0 20px; }
  .treo-site-header--dark .treo-nav__inner { min-height: 78px; }
  .treo-nav__logo, .treo-site-header--dark .treo-nav__logo { width: 135px; }
  .treo-nav__panel { flex: 1 0 100%; flex-direction: column; align-items: stretch; gap: 15px; padding: 0 0 22px; }
  .treo-nav__primary { flex-direction: column; align-items: stretch; gap: 0; }
  .treo-nav__link, .treo-nav__services > summary { display: flex; justify-content: space-between; min-height: 48px; }
  .treo-nav__popup { position: static; width: 100%; margin: 5px 0 11px; box-shadow: none; }
  .treo-nav__actions { align-items: stretch; flex-direction: column; gap: 19px; }
  .treo-nav__login { display: inline-flex; align-items: center; justify-content: center; min-height: 36px; }
  .treo-site-header.is-enhanced .treo-nav__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 44px;
    padding: 7px 0 7px 12px;
    border: 0;
    color: var(--nav-ink);
    background: transparent;
    font: inherit;
    font-size: 13px;
    font-weight: 650;
    cursor: pointer;
  }
  .treo-nav__toggle svg { width: 21px; height: 21px; }
  .treo-site-header.is-enhanced .treo-nav__panel { display: none; }
  .treo-site-header.is-menu-open .treo-nav__panel {
    --nav-ink: #f7f6f1;
    --nav-muted: #bac3bb;
    --nav-accent: #d5bb95;
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100svh - 78px);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 14px 24px 25px;
    border-top: 1px solid #3b433f;
    background: #171d1b;
    box-shadow: 0 22px 35px #08130e30;
  }
  .treo-site-header.is-menu-open .treo-nav__popup { padding-top: 12px; border-color: #3b433f; background: #111714; }
  .treo-site-header.is-menu-open .treo-nav__cta { background: #ece8de; border-color: #ece8de; color: #17211b; }
  .treo-site-header.is-menu-open .treo-nav__cta:hover { background: #fff; }
}
@media (prefers-reduced-motion: reduce) {
  .treo-nav__chevron, .treo-nav__service-link, .treo-nav__cta { transition: none; }
}