.signal-player {
  --signal-accent: #7cf6ff;
  --signal-secondary: #ae8cff;
  --signal-magenta: #f576c5;
  --signal-progress: 0%;
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(150px, 184px) minmax(0, 1fr);
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
  width: 100%;
  min-height: 246px;
  overflow: hidden;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(162, 190, 255, 0.2);
  border-radius: clamp(24px, 3vw, 36px);
  background:
    linear-gradient(115deg, rgba(7, 15, 31, 0.94), rgba(17, 18, 48, 0.9)),
    rgba(7, 12, 28, 0.94);
  color: #f5f7ff;
  box-shadow: 0 24px 70px rgba(5, 9, 26, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.signal-player::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 18%, rgba(124, 246, 255, 0.16), transparent 28%),
    radial-gradient(circle at 88% 82%, rgba(245, 118, 197, 0.13), transparent 30%),
    repeating-linear-gradient(90deg, transparent 0 53px, rgba(255, 255, 255, 0.025) 54px),
    repeating-linear-gradient(0deg, transparent 0 53px, rgba(255, 255, 255, 0.02) 54px);
}

.signal-player::after {
  content: "SIGNAL / WSL-01";
  position: absolute;
  top: 17px;
  right: 22px;
  color: rgba(210, 222, 255, 0.28);
  font: 600 9px/1 var(--font-mono, ui-monospace, monospace);
  letter-spacing: 0.18em;
}

.signal-player__visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
}

.signal-player__cover {
  position: relative;
  z-index: 2;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 26px;
  filter: saturate(0.86) contrast(1.04);
  box-shadow: 0 22px 50px rgba(2, 7, 20, 0.44), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.signal-player__disc {
  position: absolute;
  z-index: 1;
  top: 9%;
  right: -18%;
  width: 82%;
  aspect-ratio: 1;
  border: 1px solid rgba(124, 246, 255, 0.2);
  border-radius: 50%;
  background:
    radial-gradient(circle, #0a1021 0 8%, var(--signal-accent) 8.5% 10%, #101329 10.5% 28%, transparent 29%),
    repeating-radial-gradient(circle, rgba(184, 207, 255, 0.14) 0 1px, rgba(6, 10, 24, 0.94) 2px 5px);
  box-shadow: 0 0 32px rgba(124, 246, 255, 0.1);
}

.signal-player__disc i {
  position: absolute;
  inset: 19%;
  border: 1px solid rgba(245, 118, 197, 0.28);
  border-radius: 50%;
}

.signal-player.is-playing .signal-player__disc {
  animation: signal-disc 9s linear infinite;
}

.signal-player__main {
  min-width: 0;
}

.signal-player__topline,
.signal-player__controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.signal-player__topline {
  justify-content: space-between;
  padding-right: 104px;
  color: rgba(220, 229, 255, 0.62);
  font: 600 10px/1.4 var(--font-mono, ui-monospace, monospace);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-player__status::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin: 0 9px 1px 0;
  border-radius: 50%;
  background: var(--signal-accent);
  box-shadow: 0 0 15px rgba(124, 246, 255, 0.8);
}

.signal-player.is-error .signal-player__status::before {
  background: var(--signal-magenta);
  box-shadow: 0 0 15px rgba(245, 118, 197, 0.8);
}

.signal-player__titles {
  margin: 20px 0 18px;
}

.signal-player__titles h3 {
  overflow: hidden;
  margin: 0;
  color: #fff;
  font-family: var(--font-display, sans-serif);
  font-size: clamp(27px, 4.5vw, 48px);
  font-weight: 720;
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.signal-player__titles p {
  margin: 8px 0 0;
  overflow: hidden;
  color: rgba(219, 226, 248, 0.66);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.signal-player__timeline {
  position: relative;
  height: 46px;
}

.signal-player__wave {
  position: absolute;
  inset: 5px 0;
  display: grid;
  grid-template-columns: repeat(32, minmax(2px, 1fr));
  align-items: center;
  gap: clamp(2px, 0.55vw, 6px);
  pointer-events: none;
}

.signal-player__wave i {
  height: 28%;
  min-height: 3px;
  border-radius: 999px;
  background: rgba(166, 183, 221, 0.24);
  transition: height 260ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.signal-player__wave i:nth-child(3n + 1) { height: 56%; }
.signal-player__wave i:nth-child(4n + 2) { height: 84%; }
.signal-player__wave i:nth-child(7n + 3) { height: 38%; }
.signal-player__wave i:nth-child(9n + 4) { height: 100%; }
.signal-player__wave i.is-passed {
  background: linear-gradient(180deg, var(--signal-accent), var(--signal-secondary));
  box-shadow: 0 0 10px rgba(124, 246, 255, 0.24);
}

.signal-player.is-playing .signal-player__wave i:nth-child(3n) {
  animation: signal-pulse 1.4s ease-in-out infinite alternate;
}

.signal-player__timeline input {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
  opacity: 0;
}

.signal-player__timeline:focus-within {
  border-radius: 10px;
  outline: 2px solid var(--signal-accent);
  outline-offset: 4px;
}

.signal-player__controls {
  min-height: 46px;
  margin-top: 8px;
}

.signal-player button,
.signal-player a {
  -webkit-tap-highlight-color: transparent;
}

.signal-player__control,
.signal-player__play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid rgba(185, 206, 255, 0.2);
  color: #f6f8ff;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.signal-player__control {
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.055);
  font-size: 18px;
}

.signal-player__play {
  gap: 9px;
  min-width: 108px;
  padding: 0 18px;
  border-color: rgba(124, 246, 255, 0.38);
  border-radius: 999px;
  background: linear-gradient(125deg, rgba(124, 246, 255, 0.22), rgba(174, 140, 255, 0.2));
  box-shadow: 0 12px 30px rgba(45, 75, 164, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.14);
  font: 650 12px/1 var(--font-body, sans-serif);
}

.signal-player__play [data-player-icon] {
  width: 12px;
  color: var(--signal-accent);
  font: 700 12px/1 var(--font-mono, ui-monospace, monospace);
}

.signal-player__control:hover,
.signal-player__play:hover {
  transform: translateY(-2px);
  border-color: rgba(124, 246, 255, 0.62);
  background-color: rgba(124, 246, 255, 0.1);
  box-shadow: 0 12px 26px rgba(28, 67, 152, 0.25);
}

.signal-player__control:focus-visible,
.signal-player__play:focus-visible,
.signal-player__source:focus-visible {
  outline: 2px solid var(--signal-accent);
  outline-offset: 3px;
}

.signal-player button:disabled {
  cursor: wait;
  opacity: 0.44;
  transform: none;
}

.signal-player__time {
  margin-left: 5px;
  color: rgba(216, 226, 250, 0.62);
  font: 550 11px/1 var(--font-mono, ui-monospace, monospace);
  letter-spacing: 0.04em;
}

.signal-player__time i {
  margin: 0 5px;
  color: rgba(216, 226, 250, 0.3);
  font-style: normal;
}

.signal-player__source {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  margin-left: auto;
  color: rgba(225, 233, 255, 0.76);
  font-size: 12px;
  text-decoration: none;
  transition: color 180ms ease;
}

.signal-player__source:hover {
  color: var(--signal-accent);
}

.signal-player--compact {
  grid-template-columns: 138px minmax(0, 1fr);
  width: min(820px, 100%);
  min-height: 210px;
  text-align: left;
}

.signal-player--compact .signal-player__titles h3 {
  font-size: clamp(26px, 4vw, 40px);
}

.group-music__intro {
  max-width: 610px;
  margin: -4px auto 22px;
  color: var(--shell-muted, #8790aa);
  font-size: 14px;
  line-height: 1.8;
}

@keyframes signal-disc {
  to { transform: rotate(1turn); }
}

@keyframes signal-pulse {
  to { transform: scaleY(0.68); }
}

@media (max-width: 680px) {
  .signal-player,
  .signal-player--compact {
    grid-template-columns: 94px minmax(0, 1fr);
    gap: 18px;
    min-height: 190px;
    padding: 22px 18px;
    border-radius: 26px;
  }

  .signal-player::after {
    top: 14px;
    right: 16px;
    font-size: 8px;
  }

  .signal-player__cover {
    border-radius: 18px;
  }

  .signal-player__topline {
    padding-right: 74px;
    font-size: 8px;
    letter-spacing: 0.08em;
  }

  .signal-player__counter {
    display: none;
  }

  .signal-player__titles {
    margin: 15px 0 10px;
  }

  .signal-player__titles h3,
  .signal-player--compact .signal-player__titles h3 {
    font-size: clamp(23px, 7vw, 32px);
  }

  .signal-player__timeline {
    height: 38px;
  }

  .signal-player__controls {
    flex-wrap: wrap;
    gap: 8px;
  }

  .signal-player__play {
    min-width: 94px;
    padding: 0 14px;
  }

  .signal-player__source {
    margin-left: 0;
  }
}

@media (max-width: 460px) {
  .signal-player,
  .signal-player--compact {
    grid-template-columns: 1fr;
  }

  .signal-player__visual {
    width: 102px;
  }

  .signal-player__disc {
    right: -16%;
  }

  .signal-player__topline {
    position: absolute;
    top: 26px;
    left: 138px;
    right: 16px;
    min-height: 48px;
    align-items: flex-end;
    padding: 0;
  }

  .signal-player__status {
    max-width: 156px;
    line-height: 1.5;
  }

  .signal-player__titles {
    margin-top: 4px;
  }

  .signal-player__controls {
    display: grid;
    grid-template-columns: 44px minmax(94px, auto) 44px 1fr;
  }

  .signal-player--compact .signal-player__controls {
    grid-template-columns: minmax(110px, auto) 1fr;
  }

  .signal-player__source {
    grid-column: 1 / -1;
    min-height: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .signal-player *,
  .signal-player *::before,
  .signal-player *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}