/* ==========================================================================
   header.css — top header / navbar section
   Self-contained: includes its own responsive rules so other pages can skip it.
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: var(--tp-white);
  border-bottom: 1px solid var(--tp-border);
  transition: box-shadow 0.2s ease-in-out;
}

/* subtle shadow once the page is scrolled */
.site-header.is-stuck {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
}

.site-header .navbar {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

/* ---- Brand / logo ---- */
.tp-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0;
}

.tp-brand__icon {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
}

.tp-brand__name {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--tp-text);
  letter-spacing: -0.01em;
}

.tp-brand__tagline {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--tp-muted);
  line-height: 1.1;
}

/* ---- Nav links ---- */
.tp-nav .nav-link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--tp-text);
  padding: 0.5rem 0.9rem;
  transition: color 0.15s ease-in-out;
}

.tp-nav .nav-link:hover,
.tp-nav .nav-link:focus {
  color: var(--tp-green);
}

/* active item: green text + underline */
.tp-nav .nav-link.active {
  color: var(--tp-green);
  font-weight: 600;
}

.tp-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--tp-green);
}

/* ---- Dropdown caret (downloaded svg via mask so it inherits link color) ---- */
.tp-nav .dropdown-toggle::after {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-left: 0.35rem;
  vertical-align: middle;
  border: 0;
  background-image: url("../images/svg/chevron-down.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  transition: transform 0.15s ease;
}

/* flip caret while the menu is open */
.tp-nav .dropdown-toggle[aria-expanded="true"]::after,
.tp-nav .dropdown:hover .dropdown-toggle::after {
  transform: rotate(180deg);
}

.tp-nav .dropdown-menu {
  border: 1px solid var(--tp-border);
  border-radius: 0.5rem;
  padding: 0.35rem;
  margin-top: 0.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  font-size: 0.92rem;
}

/* Open dropdowns on hover (desktop only) */
@media (min-width: 992px) {
  .tp-nav .dropdown:hover > .dropdown-menu {
    display: block;
  }
  /* invisible bridge so the menu doesn't close in the gap under the toggle */
  .tp-nav .dropdown-toggle::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    height: 0.6rem;
  }
}

.tp-nav .dropdown-item {
  border-radius: 0.35rem;
  padding: 0.5rem 0.75rem;
  font-weight: 500;
  color: var(--tp-text);
}

.tp-nav .dropdown-item:hover,
.tp-nav .dropdown-item:focus,
.tp-nav .dropdown-item.active {
  background-color: rgba(9, 119, 54, 0.08);
  color: var(--tp-green);
}

/* ---- Search button ---- */
.tp-search-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 0.5rem;
  background-image: var(--tp-green-gradient);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25),
              0 4px 12px rgba(9, 119, 54, 0.25);
  transition: background-image 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.tp-search-btn:hover,
.tp-search-btn:focus {
  background-image: var(--tp-green-gradient-hover);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25),
              0 6px 16px rgba(9, 119, 54, 0.3);
}

.tp-search-btn__icon {
  width: 17px;
  height: 17px;
}

/* ---- Hamburger toggler ---- */
.site-header .navbar-toggler {
  border-color: var(--tp-border);
  padding: 0.35rem 0.5rem;
}

.site-header .navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(9, 119, 54, 0.2);
}

/* ==========================================================================
   Responsive — header
   ========================================================================== */
@media (max-width: 991.98px) {
  .tp-nav {
    padding-top: 0.5rem;
  }

  .tp-nav .nav-link {
    padding: 0.6rem 0.25rem;
  }

  .tp-nav .nav-link.active::after {
    left: 0.25rem;
    right: auto;
    width: 24px;
  }

  .tp-search-btn {
    margin-top: 0.75rem;
  }
}

@media (max-width: 575.98px) {
  .tp-brand__name {
    font-size: 1.15rem;
  }

  .tp-brand__tagline {
    font-size: 0.65rem;
  }
}