/* ==========================================================================
   IVMS MARITIME — site.css
   Site-wide overrides loaded AFTER each page's own stylesheet.
   Purpose: one correct responsive navigation for every page, plus a few
   small-screen safety rules. Keeping it in one file means the header behaves
   identically across index / about / service / contact / gallery pages.
   ========================================================================== */

/* Never allow a sideways scrollbar, whatever the viewport width. */
html, body { overflow-x: hidden; }
*, *::before, *::after { min-width: 0; }
img, video, iframe { max-width: 100%; }

/* --------------------------------------------------------------------------
   DESKTOP NAV — tightened so all seven links + brand + CTA always fit 1220px
   -------------------------------------------------------------------------- */
.navlinks { gap: 26px; align-items: center; }
.navlinks a { white-space: nowrap; }

/* --------------------------------------------------------------------------
   HAMBURGER BUTTON — hidden on desktop, shown on tablet / mobile
   -------------------------------------------------------------------------- */
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line, rgba(10, 37, 64, .12));
  border-radius: 3px;
  background: transparent;
  color: var(--navy, #0A2540);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.nav-toggle .bar,
.nav-toggle .bar::before,
.nav-toggle .bar::after {
  display: block;
  width: 20px; height: 2px;
  background: currentColor;
  transition: transform .2s ease, opacity .2s ease, background .2s ease;
}
.nav-toggle .bar { position: relative; }
.nav-toggle .bar::before,
.nav-toggle .bar::after { content: ""; position: absolute; left: 0; }
.nav-toggle .bar::before { top: -6px; }
.nav-toggle .bar::after  { top: 6px; }

.site-header.nav-open .nav-toggle .bar { background: transparent; }
.site-header.nav-open .nav-toggle .bar::before { transform: translateY(6px) rotate(45deg); }
.site-header.nav-open .nav-toggle .bar::after  { transform: translateY(-6px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   TABLET / MOBILE  (<= 1024px) — links collapse into a drop panel
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .site-header .wrap { position: relative; }

  .nav-toggle { display: inline-flex; }

  /* push the Contact button + hamburger together to the right */
  .nav-cta { margin-left: auto; padding: 10px 14px; font-size: .74rem; }
  .nav-toggle { margin-left: 8px; }

  .navlinks {
    position: absolute;
    top: 100%; left: 0; right: 0;
    display: none;                 /* revealed by .nav-open */
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0 10px;
    background: var(--white, #fff);
    border-bottom: 1px solid var(--line, rgba(10, 37, 64, .12));
    box-shadow: 0 14px 30px rgba(10, 37, 64, .12);
  }
  .site-header.nav-open .navlinks { display: flex; }

  .navlinks a {
    padding: 14px 32px;
    font-size: .98rem;
    color: var(--navy, #0A2540) !important;
  }
  .navlinks a::after { display: none; }
  .navlinks a.active {
    color: var(--ocean, #1478B0) !important;
    background: var(--foam, #F4F7FA);
    box-shadow: inset 3px 0 0 var(--amber, #FFB100);
  }

  /* When the panel is open, force a solid bar even on the transparent
     home-page header, and flip its contents to the dark-on-light treatment. */
  .site-header.nav-open {
    background: var(--white, #fff) !important;
    box-shadow: 0 6px 20px rgba(10, 37, 64, .10);
  }
  .site-header.nav-open .brand-text,
  .site-header.nav-open .brand-text small { color: var(--navy, #0A2540) !important; }
  .site-header.nav-open .brand-logo { filter: none !important; }
  .site-header.nav-open .nav-toggle { color: var(--navy, #0A2540); }
  .site-header.nav-open .nav-cta {
    background: var(--navy, #0A2540) !important;
    border-color: var(--navy, #0A2540) !important;
    color: #fff !important;
  }
}

/* Home page only: while the header is transparent over the hero video,
   the hamburger needs to be white to stay visible. */
body.home .site-header:not(.scrolled):not(.nav-open) .nav-toggle {
  color: #fff;
  border-color: rgba(255, 255, 255, .4);
}

/* --------------------------------------------------------------------------
   "OFFICE" NAV DROPDOWN
   Desktop: opens on hover / keyboard focus.
   Tablet / mobile: folds into the collapsible panel, tap the label to expand.
   -------------------------------------------------------------------------- */
.nav-dropdown { position: relative; display: inline-flex; }

.nav-dropdown-toggle {
  font-family: inherit;
  font-size: .9rem;
  font-weight: 500;
  line-height: 1;
  color: var(--navy, #0A2540);
  background: none;
  border: 0;
  padding: 6px 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.nav-dropdown.active .nav-dropdown-toggle { color: var(--ocean, #1478B0); }

.nav-caret {
  width: 7px; height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform .2s ease;
}
.nav-dropdown:hover .nav-caret,
.nav-dropdown:focus-within .nav-caret,
.nav-dropdown.open .nav-caret { transform: translateY(1px) rotate(-135deg); }

.nav-dropdown-menu {
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 168px;
  display: flex;
  flex-direction: column;
  padding: 6px 0;
  background: var(--white, #fff);
  border: 1px solid var(--line, rgba(10, 37, 64, .12));
  border-radius: 4px;
  box-shadow: 0 14px 34px rgba(10, 37, 64, .16);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
  z-index: 120;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(2px);
}
.nav-dropdown-menu a {
  padding: 9px 18px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--navy, #0A2540) !important;
  white-space: nowrap;
}
.nav-dropdown-menu a::after { display: none !important; }
.nav-dropdown-menu a:hover { background: var(--foam, #F4F7FA); }
.nav-dropdown-menu a.active {
  color: var(--ocean, #1478B0) !important;
  background: var(--foam, #F4F7FA);
}

/* Home page: keep the label white while the header floats over the hero. */
body.home .site-header:not(.scrolled):not(.nav-open) .nav-dropdown-toggle {
  color: rgba(255, 255, 255, .88);
}

@media (max-width: 1024px) {
  .nav-dropdown {
    display: flex;
    flex-direction: column;
    position: static;
    width: 100%;
  }
  .nav-dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    padding: 14px 32px;
    font-size: .98rem;
    color: var(--navy, #0A2540);
  }
  .nav-dropdown-menu {
    position: static;
    transform: none;
    min-width: 0;
    display: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
    background: var(--foam, #F4F7FA);
  }
  .nav-dropdown.open .nav-dropdown-menu { display: flex; }
  .nav-dropdown-menu a { padding: 12px 32px 12px 48px; }
}

/* --------------------------------------------------------------------------
   SMALL PHONES  (<= 560px)
   -------------------------------------------------------------------------- */
@media (max-width: 560px) {
  .wrap { padding-left: 20px; padding-right: 20px; }
  .footer-bottom { justify-content: flex-start; }
}