/* TanziTech dropdown navigation */
.tt-nav {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.tt-nav a,
.tt-nav button {
  font: inherit;
  color: rgba(220, 255, 230, 0.92);
  background: transparent;
  border: 0;
  text-decoration: none;
  cursor: pointer;
}

.tt-nav > a,
.tt-nav > .tt-nav-group > button {
  padding: 9px 10px;
  border-radius: 999px;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}

.tt-nav > a:hover,
.tt-nav > .tt-nav-group > button:hover,
.tt-nav > a:focus-visible,
.tt-nav > .tt-nav-group > button:focus-visible {
  background: rgba(88, 255, 134, 0.10);
  color: #ffffff;
  outline: 1px solid rgba(88, 255, 134, 0.25);
}

.tt-nav-group {
  position: relative;
}

.tt-nav-group button::after {
  content: "▾";
  margin-left: 6px;
  font-size: .78em;
  color: #58ff86;
}

.tt-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 260px;
  display: none;
  padding: 10px;
  border: 1px solid rgba(88, 255, 134, 0.20);
  border-radius: 18px;
  background: rgba(3, 12, 7, 0.96);
  box-shadow: 0 20px 60px rgba(0,0,0,.35), 0 0 28px rgba(88,255,134,.08);
  backdrop-filter: blur(14px);
}

.tt-nav-group:hover .tt-dropdown,
.tt-nav-group:focus-within .tt-dropdown,
.tt-nav-group.is-open .tt-dropdown {
  display: grid;
  gap: 4px;
}

.tt-dropdown a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: rgba(220, 255, 230, 0.90);
  line-height: 1.25;
}

.tt-dropdown a:hover,
.tt-dropdown a:focus-visible {
  background: rgba(88, 255, 134, 0.12);
  color: #fff;
  outline: none;
}

.tt-nav-cta {
  border: 1px solid rgba(88, 255, 134, 0.35) !important;
  background: rgba(88, 255, 134, 0.12) !important;
  color: #eaffef !important;
  font-weight: 700;
}

@media (max-width: 760px) {
  .tt-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 8px;
    margin-top: 14px;
  }

  .tt-nav-group {
    position: static;
  }

  .tt-dropdown {
    left: 16px;
    right: 16px;
    min-width: auto;
    width: auto;
  }
}

/* Fix dropdown stacking above hero/content panels */
.topbar {
  position: sticky;
  top: 0;
  z-index: 9999 !important;
  overflow: visible !important;
}

.tt-nav,
.tt-nav-group {
  z-index: 10000 !important;
}

.tt-dropdown {
  z-index: 10001 !important;
}

.layout,
.panel,
.hero {
  position: relative;
  z-index: 1;
}

/* Mobile-friendly navigation refinements */
@media (max-width: 860px) {
  .topbar {
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
  }

  .brand {
    width: 100%;
    font-size: 14px;
    line-height: 1.2;
  }

  .tt-nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 4px;
  }

  .tt-nav > a,
  .tt-nav > .tt-nav-group > button {
    width: 100%;
    min-height: 42px;
    padding: 10px 12px;
    justify-content: center;
    text-align: center;
    border: 1px solid rgba(88, 255, 134, 0.16);
    background: rgba(3, 12, 7, 0.72);
  }

  .tt-nav-group {
    position: relative;
    width: 100%;
  }

  .tt-nav-group > button {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .tt-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: auto;
    width: min(92vw, 360px);
    min-width: 0;
    max-height: 60vh;
    overflow-y: auto;
  }

  .tt-nav-group:nth-child(even) .tt-dropdown {
    left: auto;
    right: 0;
  }

  .tt-dropdown a {
    padding: 12px;
    font-size: 15px;
  }
.tt-nav-cta {
    grid-column: 1 / -1;
    min-height: 46px;
  }
}

@media (max-width: 420px) {
  .tt-nav {
    grid-template-columns: 1fr;
  }

  .tt-dropdown {
    left: 0 !important;
    right: 0 !important;
    width: 100%;
  }

  .tt-nav-cta {
    grid-column: auto;
  }
}