/* ===== Header / Nav ===== */
.site-header {
  background: var(--color-bg);
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 999;
  padding: 1.25rem;
  margin: 1.25rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  height: 100%;
  width: 100%;
  z-index: 1;
  margin: 0 20px;
  padding: 0;
}

.nav-logo {
  display: flex;
  align-items: center;
  padding: 0;
}

.nav-logo img {
  height: 100%;
  width: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  text-align: center;
  text-decoration: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-item a {
  color: var(--color-text);
  font-size: var(--heading-lg);
  font-weight: 500;
  text-decoration: none;
  padding: 10px;
  font-family: var(--font-heading);
}

.nav-item a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-services-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-bg);
  width: max-content;
  max-width: 500px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
}

.nav-item:hover .nav-services-dropdown {
  display: block;
  box-shadow: 0 4px 6px rgba(255, 255, 255, 0.1);
}

.nav-services-dropdown a {
  display: block;
  padding: 0.5rem 0;
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-xl);
  font-family: var(--font-body);
  text-align: left;
}

.nav-services-dropdown a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-quote-btn a {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: var(--heading-lg);
  font-family: var(--font-heading);
  cursor: pointer;
  border: none;
  transition: background 0.2s ease;
  text-decoration: none;
  background: var(--color-primary);
  color: #fff;
}

.nav-quote-btn a:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}

/* Hamburger is hidden on desktop, revealed in the mobile breakpoint below */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background: var(--color-text);
  border-radius: 2px;
  padding: 0;
}

@media screen and (max-width: 960px) {
  .site-header {
    margin: 0;
  }

  .nav-container {
    justify-content: space-between;
    align-items: center;
    margin: 10px 0;
    padding: 0 10px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background: var(--color-text);
    border-radius: 2px;
  }

  .nav-logo {
    display: flex;
    align-items: center;
    width: 50%;
    height: 100%;
    padding: 0;
  }

  .nav-logo img {
    height: 100%;
    width: auto;
    padding: 0;
  }

  /* Full-screen overlay menu that slides down under the sticky header */
  .nav-list {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: var(--hero-height);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    background: var(--color-bg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-100%);
    transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s ease;
    z-index: 998;
    padding: 0;
  }

  .nav-list.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    font-size: var(--heading-md);
  }

  .nav-item {
    width: 100%;
  }

  .nav-item a {
    font-size: var(--heading-xl);
  }

  .nav-item:hover .nav-services-dropdown {
    display: none;
  }
}

/* Lock background scrolling while the full-screen menu is open.
   html is targeted too because overflow-x: hidden makes it the scroll container */
html.nav-open,
body.nav-open {
  overflow: hidden;
}