/*
  OMF connected navigation
  ------------------------
  This file is intentionally isolated from the page composition. It carries
  Concept 02's persistent green-glass treatment into Concept 03 and prepares
  the final site routes without changing any homepage sections.
*/

:root {
  --nav-enter: cubic-bezier(0.16, 1, 0.3, 1);
  --nav-exit: cubic-bezier(0.7, 0, 0.84, 0);
  --nav-glass: rgba(7, 34, 27, 0.82);
  --nav-glass-strong: rgba(6, 31, 25, 0.92);
  --nav-line: rgba(255, 253, 248, 0.16);
  --nav-muted: rgba(255, 253, 248, 0.64);
}

body.is-nav-open {
  overflow: hidden;
}

/* Keep the navigation glassy at every scroll position. */
.site-header,
.site-header.is-scrolled {
  color: var(--white);
  background: linear-gradient(135deg, rgba(8, 37, 30, 0.42), rgba(8, 37, 30, 0.24));
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 16px 48px rgba(4, 24, 19, 0.16);
  backdrop-filter: blur(22px) saturate(145%);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
}

.site-header.is-scrolled {
  background: linear-gradient(135deg, rgba(7, 34, 27, 0.66), rgba(7, 34, 27, 0.44));
}

/* The header already owns the frame; suppress the legacy inset highlight. */
.site-header::after {
  content: none;
}

.site-header .brand-logo,
.site-header.is-scrolled .brand-logo {
  filter: brightness(0) invert(1);
}

.site-header .nav-cta,
.site-header.is-scrolled .nav-cta {
  color: var(--forest);
  background: var(--white);
  border-color: rgba(255, 255, 255, 0.3);
}

.site-header .nav-cta:hover,
.site-header.is-scrolled .nav-cta:hover {
  color: var(--forest);
  background: var(--acid);
}

.desktop-nav {
  align-self: stretch;
  gap: 0;
}

.nav-primary,
.nav-primary ul,
.nav-country-grid,
.nav-about-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav-primary {
  display: flex;
  align-items: stretch;
  gap: clamp(0.75rem, 1.35vw, 1.35rem);
}

.nav-primary > li {
  display: flex;
  align-items: center;
}

.nav-trigger-row {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}

.desktop-nav .nav-overview,
.desktop-nav .nav-direct {
  position: relative;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0.4rem 0.05rem;
}

.desktop-nav .nav-overview::after,
.desktop-nav .nav-direct::after,
.phone-link::after {
  bottom: 0.45rem;
}

.nav-toggle {
  position: relative;
  display: grid;
  width: 28px;
  height: 36px;
  flex: 0 0 auto;
  padding: 0;
  place-items: center;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle::before {
  position: absolute;
  inset: -4px -6px;
  content: "";
}

.nav-toggle > span,
.mobile-nav-section summary > span {
  width: 7px;
  height: 7px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 220ms var(--nav-enter);
}

.nav-toggle[aria-expanded="true"] > span {
  transform: translateY(2px) rotate(225deg);
}

.nav-panel {
  position: absolute;
  z-index: 120;
  top: calc(100% + 0.7rem);
  left: 50%;
  display: grid;
  width: min(62rem, calc(100vw - 2rem));
  padding: 1rem;
  color: var(--white);
  background: linear-gradient(142deg, rgba(7, 35, 28, 0.94), rgba(5, 27, 22, 0.88));
  border: 1px solid rgba(255, 253, 248, 0.16);
  border-radius: 0.85rem;
  box-shadow: 0 24px 64px rgba(2, 16, 13, 0.3), inset 0 1px rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(28px) saturate(145%);
  -webkit-backdrop-filter: blur(28px) saturate(145%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, -8px) scale(0.985);
  transform-origin: 50% 0;
  transition: opacity 180ms var(--nav-exit), transform 180ms var(--nav-exit), visibility 180ms;
  white-space: normal;
}

.nav-item.is-open .nav-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0) scale(1);
  transition-duration: 280ms;
  transition-timing-function: var(--nav-enter);
}

.nav-panel--services {
  grid-template-columns: minmax(12rem, 0.72fr) repeat(2, minmax(0, 1fr));
  gap: 0;
}

.nav-panel--countries {
  width: min(50rem, calc(100vw - 2rem));
  grid-template-columns: minmax(13rem, 0.72fr) minmax(0, 1.65fr);
}

.nav-panel--about {
  width: min(42rem, calc(100vw - 2rem));
  grid-template-columns: minmax(13rem, 0.85fr) minmax(0, 1.15fr);
}

.nav-panel a::after {
  content: none;
}

.nav-panel__lead {
  display: flex;
  min-width: 0;
  padding: 1.25rem 1.5rem 1.25rem 1.15rem;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.85rem;
  border-right: 1px solid var(--nav-line);
}

.nav-panel__lead > p,
.nav-panel__group > p {
  color: var(--acid);
  font-family: var(--sans);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.nav-panel__lead > strong {
  max-width: 13ch;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2vw, 2rem);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.nav-panel__lead > a {
  display: inline-flex;
  min-height: 44px;
  margin-top: auto;
  align-items: center;
  gap: 0.65rem;
  color: var(--acid);
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-panel__lead > a span {
  font-size: 0.9rem;
  transition: transform 220ms var(--nav-enter);
}

.nav-panel__lead > a:hover span {
  transform: translate(2px, -2px);
}

.nav-panel__group {
  min-width: 0;
  padding: 1.25rem 1.05rem 0.7rem;
}

.nav-panel__group + .nav-panel__group {
  border-left: 1px solid var(--nav-line);
}

.nav-panel__group > p {
  padding: 0 0.55rem 0.7rem;
  color: var(--nav-muted);
}

.nav-sub-link {
  display: grid;
  min-height: 3.35rem;
  padding: 0.62rem 0.55rem;
  gap: 0.12rem;
  border-top: 1px solid rgba(255, 253, 248, 0.1);
  transition: color 150ms, background 150ms, transform 220ms var(--nav-enter);
}

.nav-sub-link > span {
  font-family: var(--sans);
  font-size: 0.76rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.nav-sub-link > small {
  color: var(--nav-muted);
  font-family: var(--text);
  font-size: 0.68rem;
  line-height: 1.45;
}

.nav-sub-link:hover {
  color: var(--acid);
  background: rgba(220, 255, 117, 0.055);
  transform: translateX(3px);
}

.nav-sub-link:hover > small {
  color: rgba(255, 253, 248, 0.78);
}

.nav-country-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0.7rem 0.85rem;
}

.nav-country-grid > li:last-child {
  grid-column: 1 / -1;
}

.nav-country-grid a {
  display: grid;
  min-height: 5.6rem;
  padding: 0.8rem 0.9rem;
  grid-template-columns: 2rem 1fr;
  align-content: center;
  column-gap: 0.35rem;
  border-bottom: 1px solid rgba(255, 253, 248, 0.1);
  transition: color 150ms, background 150ms;
}

.nav-country-grid > li:nth-child(odd):not(:last-child) a {
  border-right: 1px solid rgba(255, 253, 248, 0.1);
}

.nav-country-grid small {
  grid-row: 1 / 3;
  align-self: start;
  padding-top: 0.15rem;
  color: var(--acid);
  font-family: var(--sans);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.nav-country-grid span {
  font-family: var(--serif);
  font-size: 1.28rem;
  font-style: italic;
  line-height: 1;
}

.nav-country-grid em {
  margin-top: 0.25rem;
  color: var(--nav-muted);
  font-family: var(--text);
  font-size: 0.68rem;
  font-style: normal;
  line-height: 1.4;
}

.nav-country-grid a:hover {
  color: var(--acid);
  background: rgba(220, 255, 117, 0.055);
}

.nav-about-list {
  padding: 0.85rem 1rem;
}

.nav-about-list .nav-sub-link {
  min-height: 4.5rem;
  align-content: center;
}

.desktop-nav a:focus-visible,
.nav-toggle:focus-visible,
.phone-link:focus-visible,
.nav-cta:focus-visible,
.menu-button:focus-visible,
.mobile-menu a:focus-visible,
.mobile-menu button:focus-visible,
.mobile-nav-section summary:focus-visible {
  outline: 2px solid var(--acid);
  outline-offset: 3px;
}

@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav,
  .phone-link {
    display: none;
  }

  .menu-button {
    display: flex;
    width: 44px;
    height: 44px;
    padding: 0 11px;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    color: var(--white);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.56);
    border-radius: 0.4rem;
    cursor: pointer;
  }

  .menu-button span {
    width: 100%;
    height: 1px;
    background: currentColor;
    transition: transform 260ms var(--nav-enter), translate 260ms var(--nav-enter);
  }

  .menu-button[aria-expanded="true"] span:first-child {
    transform: rotate(45deg);
    translate: 0 3.5px;
  }

  .menu-button[aria-expanded="true"] span:last-child {
    transform: rotate(-45deg);
    translate: 0 -3.5px;
  }

  .mobile-menu {
    position: absolute;
    z-index: 120;
    top: calc(100% + 0.65rem);
    right: 0;
    left: auto;
    display: grid;
    width: min(30rem, calc(100vw - 2rem));
    max-height: calc(100svh - 6.4rem - env(safe-area-inset-bottom, 0px));
    padding: 0;
    overflow: hidden;
    color: var(--white);
    background: linear-gradient(145deg, rgba(7, 35, 28, 0.97), rgba(5, 27, 22, 0.92));
    border: 1px solid rgba(255, 253, 248, 0.18);
    border-radius: 0.85rem;
    box-shadow: 0 26px 68px rgba(2, 16, 13, 0.36), inset 0 1px rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(26px) saturate(145%);
    -webkit-backdrop-filter: blur(26px) saturate(145%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px) scale(0.985);
    transform-origin: 100% 0;
    transition: opacity 180ms var(--nav-exit), transform 180ms var(--nav-exit), visibility 180ms;
  }

  .mobile-menu.is-open {
    display: grid;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
    animation: none;
    transition-duration: 320ms;
    transition-timing-function: var(--nav-enter);
  }

  .mobile-menu__scroll {
    padding: 0.65rem 1.2rem max(1.2rem, env(safe-area-inset-bottom, 0px));
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: rgba(220, 255, 117, 0.55) transparent;
  }

  .mobile-nav-section {
    border-bottom: 1px solid var(--nav-line);
  }

  .mobile-nav-section summary,
  .mobile-direct {
    display: flex;
    min-height: 3.75rem;
    padding: 0.8rem 0;
    align-items: center;
    justify-content: space-between;
    color: var(--white);
    font-family: var(--sans);
    font-size: 1rem;
    font-weight: 650;
    list-style: none;
    cursor: pointer;
  }

  .mobile-nav-section summary::-webkit-details-marker {
    display: none;
  }

  .mobile-nav-section[open] summary > span {
    transform: translateY(2px) rotate(225deg);
  }

  .mobile-nav-section__links {
    display: grid;
    padding: 0 0 1rem;
    grid-template-columns: 1fr;
    gap: 0;
  }

  .mobile-nav-section__links a {
    min-height: 44px;
    padding: 0.7rem 0.5rem;
    color: rgba(255, 253, 248, 0.76);
    border-bottom: 1px solid rgba(255, 253, 248, 0.08);
    font-family: var(--text);
    font-size: 0.88rem;
    line-height: 1.35;
  }

  .mobile-nav-section__links a:last-child {
    border-bottom: 0;
  }

  .mobile-nav-section__links .mobile-overview {
    color: var(--acid);
    font-family: var(--sans);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .mobile-direct {
    border-bottom: 1px solid var(--nav-line);
  }

  .mobile-direct > span {
    color: var(--acid);
  }

  .mobile-menu__actions {
    display: grid;
    padding-top: 1.1rem;
    gap: 0.8rem;
  }

  .mobile-menu__actions > a {
    display: grid;
    min-height: 52px;
    padding: 0.25rem 0;
    align-content: center;
    gap: 0.1rem;
    border-bottom: 0;
  }

  .mobile-menu__actions small {
    color: var(--nav-muted);
    font-family: var(--text);
    font-size: 0.7rem;
  }

  .mobile-menu__actions strong {
    font-family: var(--sans);
    font-size: 1rem;
    font-weight: 650;
  }

  .mobile-menu__actions > button {
    min-height: 52px;
    margin: 0;
    color: var(--forest);
    background: var(--acid);
    border: 0;
    border-radius: 0.45rem;
    cursor: pointer;
    font-family: var(--sans);
    font-size: 0.82rem;
    font-weight: 700;
  }
}

@media (max-width: 780px) {
  .site-header,
  .site-header.is-scrolled {
    color: var(--white);
  }

  .mobile-menu {
    right: 0;
    left: 0;
    width: auto;
    max-height: calc(100svh - 5.4rem - env(safe-area-inset-bottom, 0px));
    transform-origin: 50% 0;
  }
}

@media (hover: hover) and (pointer: fine) {
  .nav-toggle:hover {
    color: var(--acid);
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-panel,
  .mobile-menu,
  .nav-toggle > span,
  .mobile-nav-section summary > span,
  .nav-sub-link,
  .menu-button span {
    transition-duration: 0.01ms !important;
  }
}