.landing-nav {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  box-sizing: border-box;
  width: 100%;
  height: 64px;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 12px 64px;
  background: #000;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  transform: translateZ(0);
}

.landing-nav__container { display: flex; width: 100%; height: 40px; max-width: 1024px; align-items: center; gap: 48px; }
.landing-nav__brand { display: flex; width: 132px; flex: none; align-items: center; }
.landing-nav__brand svg { display: block; width: 100%; height: auto; }
.landing-nav__links { display: flex; align-items: center; gap: 4px; }

.landing-nav__link {
  display: inline-flex;
  height: 40px;
  align-items: center;
  padding: 0 16px;
  border-radius: 999px;
  color: #b9bfcc;
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
  text-decoration: none;
  transition: color 150ms ease, background-color 150ms ease;
}

.landing-nav__link:hover,
.landing-nav__link:focus-visible { background: #1f1f1f; color: #fff; outline: none; }

.landing-nav__contact {
  display: inline-flex;
  width: max-content;
  height: 40px;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  padding: 12px 16px;
  border-radius: 999px;
  background: #fff;
  color: #10131b;
  font-size: 16px;
  font-weight: 700;
  line-height: 24px;
  text-decoration: none;
}

.landing-nav__contact:focus-visible { outline: 2px solid #777; outline-offset: 3px; }
.landing-nav__mobile-menu { display: none; }

@media (max-width: 820px) {
  .landing-nav { height: 64px; padding: 12px 24px; }
  .landing-nav__container { gap: 16px; }
  .landing-nav__brand { width: 120px; }
  .landing-nav__links, .landing-nav__contact { display: none; }
  .landing-nav__mobile-menu { display: block; margin-left: auto; }
  .landing-nav__mobile-menu summary {
    display: flex;
    width: 40px;
    height: 40px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border-radius: 50%;
    list-style: none;
  }
  .landing-nav__mobile-menu summary::-webkit-details-marker { display: none; }
  .landing-nav__mobile-menu summary span {
    display: block;
    width: 15px;
    height: 1.5px;
    border-radius: 2px;
    background: #fff;
    transition: transform 150ms ease, opacity 150ms ease;
  }
  .landing-nav__mobile-menu[open] summary span:first-child { transform: translateY(6.5px) rotate(45deg); }
  .landing-nav__mobile-menu[open] summary span:nth-child(2) { opacity: 0; }
  .landing-nav__mobile-menu[open] summary span:last-child { transform: translateY(-6.5px) rotate(-45deg); }
  .landing-nav__mobile-panel {
    position: absolute;
    z-index: 20;
    top: 64px;
    right: 0;
    left: 0;
    display: flex;
    min-height: calc(100dvh - 64px);
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 22px 24px 40px;
    background: #000;
  }
  .landing-nav__mobile-panel > a {
    padding: 15px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    color: #b9bfcc;
    font-size: 16px;
    font-weight: 500;
    line-height: 24px;
    text-decoration: none;
  }
  .landing-nav__mobile-panel .landing-nav__mobile-contact {
    display: flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    margin-top: 22px;
    padding: 0 18px;
    border: 0;
    border-radius: 999px;
    background: #fff;
    color: #10131b;
    font-size: 16px;
    font-weight: 700;
  }
}

@media (prefers-reduced-motion: reduce) {
  .landing-nav__link { transition: none; }
}