.site-nav [data-mega-trigger] {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
}

.site-nav [data-mega-trigger] > i {
  width: 5px;
  height: 5px;
  border: 1px solid currentColor;
  border-radius: 50%;
  transition: background var(--motion-fast) ease, transform var(--motion-standard) var(--ease-standard);
}

.site-nav [data-mega-trigger][aria-expanded="true"] > i {
  background: var(--red);
  border-color: var(--red);
  transform: scale(1.45);
}

.horizon-mega-backdrop {
  position: fixed;
  z-index: 108;
  inset: var(--header-h) 0 0;
  background: rgba(23, 63, 52, .18);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-standard) ease;
  backdrop-filter: blur(3px);
}

.horizon-mega-backdrop.is-visible { opacity: 1; pointer-events: auto; }

.horizon-mega {
  position: fixed;
  z-index: 111;
  top: var(--header-h);
  right: 0;
  left: 0;
  max-height: min(74svh, 690px);
  overflow: auto;
  border-bottom: 1px solid var(--pine);
  background: var(--dawn);
  box-shadow: 0 28px 60px rgba(23, 63, 52, .14);
  opacity: 0;
  transform: translateY(-18px);
  visibility: hidden;
  transition: opacity var(--motion-standard) ease, transform var(--motion-slow) var(--ease-standard), visibility var(--motion-standard) ease;
}

.horizon-mega.is-open { opacity: 1; transform: translateY(0); visibility: visible; }

.horizon-mega-line {
  position: absolute;
  z-index: 3;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  overflow: hidden;
}

.horizon-mega-line i { display: block; width: 100%; height: 1px; background: var(--red); transform: scaleX(0); transform-origin: left; }
.horizon-mega-line b { position: absolute; top: 0; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--red); transform: translate(-50%, -2px); }
.horizon-mega.is-open .horizon-mega-line i { animation: mega-line-arrive .7s var(--ease-standard) forwards; }
.horizon-mega.is-open .horizon-mega-line b { animation: mega-dot-arrive .7s var(--ease-standard) forwards; }

@keyframes mega-line-arrive { to { transform: scaleX(1); } }
@keyframes mega-dot-arrive { to { left: 100%; } }

.horizon-mega-close {
  position: absolute;
  z-index: 4;
  top: 1.35rem;
  right: clamp(1.5rem, 4vw, 4.25rem);
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  padding: .6rem 0;
  background: transparent;
  font: 500 .64rem/1 var(--font-signal);
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: pointer;
}

.horizon-mega-close i,
.horizon-mega-close i::after { display: block; width: 18px; height: 1px; background: currentColor; content: ""; transform: rotate(45deg); }
.horizon-mega-close i::after { transform: rotate(90deg); }

.horizon-mega-panel {
  display: grid;
  grid-template-columns: minmax(240px, .7fr) minmax(0, 2.3fr);
  min-height: 440px;
  padding: clamp(3.2rem, 5vw, 5rem) clamp(1.5rem, 4vw, 4.25rem) 2rem;
}

/* Route boards only need enough room to explain and choose a path. */
#horizon-mega-vision,
#horizon-mega-progress {
  min-height: 0;
  padding-top: clamp(2.25rem, 3vw, 3rem);
  padding-bottom: 1.5rem;
}

#horizon-mega-vision .horizon-mega-lead p,
#horizon-mega-progress .horizon-mega-lead p { margin-bottom: 1.5rem; }

#horizon-mega-vision .horizon-mega-lead,
#horizon-mega-progress .horizon-mega-lead { border-right: 0; }

#horizon-mega-vision .horizon-mega-lead > a,
#horizon-mega-progress .horizon-mega-lead > a { margin-top: 2rem; }

.horizon-mega-panel[hidden] { display: none; }

.horizon-mega-lead {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
  padding: .5rem clamp(2rem, 4vw, 4.5rem) 1rem 0;
  border-right: 1px solid var(--line);
}

.horizon-mega-lead p,
.horizon-destination span,
.horizon-destination small,
.horizon-route-list span,
.horizon-route-list b,
.horizon-contact-board span,
.horizon-contact-board b { font: 500 .64rem/1.35 var(--font-signal); letter-spacing: .1em; text-transform: uppercase; }

.horizon-mega-lead p { margin: 0 0 2.4rem; color: var(--red-dark); }
.horizon-mega-lead p span { margin-right: 1rem; color: var(--ink); }
.horizon-mega-lead h2 { max-width: 9ch; margin: 0; color: var(--pine); font-size: clamp(2.4rem, 3.4vw, 4.7rem); font-weight: 500; line-height: .98; letter-spacing: -.055em; }

.horizon-mega-lead > a {
  display: inline-flex;
  justify-content: space-between;
  gap: 2rem;
  width: 100%;
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--pine);
  color: var(--red-dark);
  font: 500 .68rem/1 var(--font-signal);
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
}

.horizon-destination-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); min-width: 0; }

.horizon-destination {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 360px;
  padding: 1.4rem;
  overflow: hidden;
  border-right: 1px solid rgba(255,255,255,.4);
  color: #fff;
  text-decoration: none;
  isolation: isolate;
}

.horizon-destination:first-child { margin-left: 1.6rem; }
.horizon-destination:last-child { border-right: 0; }
.horizon-destination::before,
.horizon-destination::after { position: absolute; z-index: -2; inset: 0; background-image: var(--menu-image); background-position: center; background-size: cover; content: ""; transition: transform .65s var(--ease-standard), filter .65s ease; }
.horizon-destination::after { z-index: -1; background: linear-gradient(180deg, rgba(10, 38, 31, .15), rgba(10, 38, 31, .84)); }
.horizon-destination:hover::before,
.horizon-destination:focus-visible::before { transform: scale(1.055); filter: saturate(1.12); }
.horizon-destination strong { margin-top: auto; font-size: clamp(1.25rem, 1.55vw, 1.9rem); line-height: 1.08; letter-spacing: -.04em; }
.horizon-destination small { margin-top: .6rem; color: rgba(255,255,255,.75); }
.horizon-destination b { margin-top: 1.5rem; color: #fff; font: 500 .62rem/1 var(--font-signal); letter-spacing: .08em; text-transform: uppercase; }

.horizon-route-list { display: grid; align-content: stretch; margin-left: 1.6rem; border-top: 1px solid var(--pine); }
.horizon-route-list a { display: grid; grid-template-columns: 48px minmax(180px, .8fr) minmax(240px, 1.4fr) 100px; align-items: center; gap: 1.4rem; padding: 1.45rem 1rem; border-bottom: 1px solid var(--line); color: inherit; text-decoration: none; transition: background var(--motion-standard) ease, padding var(--motion-standard) var(--ease-standard); }
.horizon-route-list a:hover,
.horizon-route-list a:focus-visible { padding-right: 1.5rem; padding-left: 1.5rem; background: var(--sky); }
.horizon-route-list strong { color: var(--pine); font-size: clamp(1.2rem, 1.8vw, 2rem); font-weight: 600; line-height: 1.15; letter-spacing: -.035em; }
.horizon-route-list small { max-width: 34ch; color: var(--muted); font-size: .92rem; line-height: 1.55; }
.horizon-route-list span { color: var(--red-dark); }
.horizon-route-list b { justify-self: end; color: var(--pine); }

.horizon-contact-board { display: grid; grid-template-columns: repeat(3, 1fr); margin-left: 1.6rem; border-top: 1px solid var(--pine); border-bottom: 1px solid var(--pine); }
.horizon-contact-board a,
.horizon-contact-board address { display: flex; flex-direction: column; min-width: 0; padding: 1.7rem; border-right: 1px solid var(--line); color: inherit; font-style: normal; text-decoration: none; }
.horizon-contact-board > :last-child { border-right: 0; }
.horizon-contact-board strong { margin-top: 2rem; color: var(--pine); font-size: clamp(1.15rem, 1.65vw, 1.75rem); line-height: 1.2; letter-spacing: -.035em; }
.horizon-contact-board small { margin-top: .75rem; color: var(--muted); font-size: .86rem; line-height: 1.55; overflow-wrap: anywhere; }
.horizon-contact-board b { margin-top: auto; padding-top: 3rem; color: var(--red-dark); }
.horizon-contact-board a:hover { background: var(--sky); }

.chapter-enter { display: inline-flex; align-items: center; justify-content: space-between; gap: 1.5rem; width: 100%; margin: 1.2rem 0 .4rem; padding: .85rem 0; border-top: 1px solid var(--pine); border-bottom: 1px solid var(--pine); color: var(--red-dark); font: 500 .64rem/1 var(--font-signal); letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }

@media (max-width: 1100px) {
  .horizon-mega-panel { grid-template-columns: minmax(220px, .65fr) minmax(0, 2.35fr); }
  .horizon-destination:first-child { margin-left: 1rem; }
  .horizon-destination { min-height: 330px; padding: 1.1rem; }
  .horizon-route-list,
  .horizon-contact-board { margin-left: 1rem; }
  .horizon-route-list a { grid-template-columns: 38px minmax(150px,.8fr) minmax(190px,1.2fr) 80px; gap: 1rem; }
}

@media (max-width: 880px) {
  .horizon-mega,
  .horizon-mega-backdrop { display: none !important; }
  .site-nav [data-mega-trigger] { justify-content: space-between; }
  .site-nav [data-mega-trigger] > i { width: 7px; height: 7px; background: transparent !important; transform: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .horizon-mega,
  .horizon-mega-backdrop,
  .horizon-destination::before { transition: none; }
  .horizon-mega-line i,
  .horizon-mega-line b { animation: none !important; }
  .horizon-mega.is-open .horizon-mega-line i { transform: scaleX(1); }
  .horizon-mega.is-open .horizon-mega-line b { left: 100%; }
}