/* Shared site chrome: nav + footer. Used on every page.
   Prefixed .bt- so it never collides with page styles. */
.bt-nav, .bt-nav *, .bt-foot, .bt-foot * { box-sizing: border-box; margin: 0; padding: 0; }

.bt-nav {
  background: #0f3440;
  font-family: 'DM Sans', system-ui, sans-serif;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding: 14px 32px;
  position: relative; z-index: 300;
}
.bt-brand {
  font-family: 'Playfair Display', Georgia, serif;
  color: #fff; text-decoration: none; font-size: 20px; font-weight: 600;
  white-space: nowrap; letter-spacing: 0.01em;
}
.bt-brand em { font-style: italic; font-weight: 400; color: #8fd3dd; }
.bt-links { display: flex; align-items: center; gap: 4px; }
.bt-links a {
  color: rgba(255,255,255,0.78); text-decoration: none;
  font-size: 14px; font-weight: 500; letter-spacing: 0.02em;
  padding: 8px 12px; border-radius: 50px; white-space: nowrap;
  transition: color .2s, background .2s;
}
.bt-links a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.bt-links a[aria-current="page"] { color: #fff; box-shadow: inset 0 -2px 0 #2a9aad; border-radius: 0; }
.bt-links a.bt-cta {
  background: #e07a5f; color: #fff; margin-left: 8px; padding: 9px 18px;
}
.bt-links a.bt-cta:hover { background: #cf6a50; }

/* Snorkeling dropdown: a menu on desktop, two plain links on phones */
.bt-drop { position: relative; }
.bt-drop-btn {
  font: inherit; font-size: 14px; font-weight: 500; letter-spacing: 0.02em;
  color: rgba(255,255,255,0.78); background: none; border: 0; cursor: pointer;
  padding: 8px 12px; border-radius: 50px; white-space: nowrap; transition: color .2s, background .2s;
}
.bt-drop-btn::after { content: ""; display: inline-block; margin-left: 6px; vertical-align: 2px; border: 4px solid transparent; border-top-color: currentColor; border-bottom: 0; }
.bt-drop:hover .bt-drop-btn, .bt-drop:focus-within .bt-drop-btn { color: #fff; background: rgba(255,255,255,0.08); }
.bt-drop:has(a[aria-current="page"]) .bt-drop-btn { color: #fff; box-shadow: inset 0 -2px 0 #2a9aad; border-radius: 0; }
.bt-drop-menu {
  display: none; position: absolute; top: 100%; left: 0; min-width: 190px;
  background: #0f3440; border: 1px solid rgba(255,255,255,0.14); border-radius: 10px;
  padding: 6px; box-shadow: 0 12px 30px rgba(0,0,0,0.35);
}
.bt-drop:hover .bt-drop-menu, .bt-drop:focus-within .bt-drop-menu { display: block; }
.bt-drop-menu a { display: block; border-radius: 6px; }
.bt-drop-menu a[aria-current="page"] { box-shadow: none; background: rgba(42,154,173,0.25); border-radius: 6px; }

@media (max-width: 860px) {
  .bt-nav { flex-direction: column; align-items: stretch; gap: 8px; padding: 12px 0 10px; }
  .bt-brand { padding: 0 16px; font-size: 18px; }
  .bt-links {
    overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none;
    padding: 0 9px; gap: 0;
  }
  .bt-links::-webkit-scrollbar { display: none; }
  .bt-links a { font-size: 13px; padding: 7px 7px; }
  .bt-links a.bt-cta { position: absolute; top: 9px; right: 16px; margin: 0; padding: 7px 14px; }
  .bt-drop, .bt-drop-menu { display: contents; }
  .bt-drop-btn { display: none; }
  .bt-drop-menu a, .bt-drop-menu a[aria-current="page"] { display: inline; background: none; border-radius: 50px; }
  .bt-drop-menu a[aria-current="page"] { box-shadow: inset 0 -2px 0 #2a9aad; border-radius: 0; }
}

.bt-foot {
  background: #08222b; color: rgba(255,255,255,0.55);
  font-family: 'DM Sans', system-ui, sans-serif; font-size: 13px; line-height: 1.6;
  text-align: center; padding: 36px 20px 30px;
}
.bt-foot a { color: #8fd3dd; text-decoration: none; }
.bt-foot a:hover { color: #fff; }
.bt-foot-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 22px; margin-bottom: 14px; font-size: 14px; }
.bt-foot-links a { color: rgba(255,255,255,0.85); }
.bt-foot p + p { margin-top: 4px; }