.expedition-sound {
  position: relative;
  z-index: 5;
  width: min(100%, 330px);
  color: #fff;
}
.expedition-sound__button {
  width: 100%; min-height: 54px; display: flex; align-items: center; gap: 11px;
  padding: 8px 12px; border: 1px solid rgba(255,255,255,.32); border-radius: 16px;
  background: rgba(7,25,61,.72); color: #fff; text-align: left; cursor: pointer;
  box-shadow: 0 12px 30px rgba(3,15,43,.18); backdrop-filter: blur(16px);
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.expedition-sound__button:hover { transform: translateY(-2px); background: rgba(10,44,104,.86); border-color: rgba(255,255,255,.55); }
.expedition-sound__button:focus-visible { outline: 3px solid #9fd5ff; outline-offset: 3px; }
.expedition-sound__icon { flex: 0 0 36px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: #fff; color: #1761d4; }
.expedition-sound__icon svg { width: 20px; height: 20px; }
.expedition-sound__copy { min-width: 0; display: grid; line-height: 1.15; }
.expedition-sound__copy strong { overflow: hidden; font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.expedition-sound__action { margin-bottom: 3px; color: #bfd9ff; font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.expedition-sound__wave { display: flex; align-items: center; gap: 3px; height: 24px; margin-left: auto; opacity: .55; }
.expedition-sound__wave i { width: 3px; height: 8px; border-radius: 3px; background: currentColor; }
.expedition-sound__details { display: none; margin: 8px 10px 0; padding: 10px 12px; border-radius: 12px; background: rgba(7,25,61,.78); backdrop-filter: blur(12px); }
.expedition-sound__details strong, .expedition-sound__details span, .expedition-sound__details small { display: block; }
.expedition-sound__details strong { font-size: 13px; }
.expedition-sound__details span { margin-top: 2px; color: #c9dcfb; font-size: 11px; }
.expedition-sound__details small { margin-top: 5px; color: #e6efff; font-size: 11px; line-height: 1.4; }
.expedition-sound.is-playing .expedition-sound__details, .expedition-sound.is-paused .expedition-sound__details { display: block; }
.expedition-sound .icon-pause, .expedition-sound__spinner { display: none; }
.expedition-sound.is-playing .icon-play { display: none; }
.expedition-sound.is-playing .icon-pause { display: block; }
.expedition-sound.is-loading .icon-play { display: none; }
.expedition-sound.is-loading .expedition-sound__spinner { display: block; width: 18px; height: 18px; border: 2px solid rgba(23,97,212,.25); border-top-color: #1761d4; border-radius: 50%; animation: sound-spin .75s linear infinite; }
.expedition-sound.is-playing .expedition-sound__wave { opacity: 1; }
.expedition-sound.is-playing .expedition-sound__wave i { animation: sound-wave .65s ease-in-out infinite alternate; }
.expedition-sound.is-playing .expedition-sound__wave i:nth-child(2) { animation-delay: -.22s; }
.expedition-sound.is-playing .expedition-sound__wave i:nth-child(3) { animation-delay: -.42s; }
.expedition-sound.is-playing .expedition-sound__wave i:nth-child(4) { animation-delay: -.12s; }
@keyframes sound-spin { to { transform: rotate(360deg); } }
@keyframes sound-wave { from { height: 5px; } to { height: 22px; } }
.expedition-sound-list { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
@media (prefers-reduced-motion: reduce) { .expedition-sound, .expedition-sound * { animation: none !important; transition: none !important; } }