/* ============================================================================
   NATIONAL ANTHEM AUDIO PLAYER — Evident Technologies
   ============================================================================
   
   Respectful audio player for The Star-Spangled Banner.
   Positioned at bottom-right of flag hero section.
   
   Features:
   - Elegant, minimal controls
   - Glass-effect backdrop
   - Smooth transitions
   - Reduced-motion support
   - Responsive design
   
   Last updated: 2026-02-11
   ============================================================================ */

/* ---- Container ---- */
.anthem-player {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  z-index: 10;
  pointer-events: none;
}

.anthem-player__controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 2rem;
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.2),
    0 1px 4px rgba(0, 0, 0, 0.1);
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Enhanced visibility when audio is ready */
.anthem-player.is-ready .anthem-player__controls {
  opacity: 1;
  transform: translateY(0);
  animation: glow-border 3s ease-in forwards;
}

/* ---- Buttons ---- */
.anthem-player__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.anthem-player__btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.anthem-player__btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.8);
  outline-offset: 2px;
}

.anthem-player__btn:active {
  transform: scale(0.95);
}

/* Toggle button (play/pause) */
.anthem-player__btn--toggle {
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255, 255, 255, 0.18);
}

.anthem-player__btn--toggle:hover {
  background: rgba(255, 255, 255, 0.28);
}

/* Icon visibility states */
.anthem-player__icon--play {
  display: none;
}

.anthem-player.is-paused .anthem-player__icon--pause {
  display: none;
}

.anthem-player.is-paused .anthem-player__icon--play {
  display: block;
}

/* Mute button */
.anthem-player__icon--muted {
  display: none;
}

.anthem-player.is-muted .anthem-player__icon--volume {
  display: none;
}

.anthem-player.is-muted .anthem-player__icon--muted {
  display: block;
}

/* Replay button */
.anthem-player__btn--replay {
  display: none;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  border-radius: 1.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.anthem-player.is-ended .anthem-player__btn--replay {
  display: flex;
}

.anthem-player.is-ended .anthem-player__btn--toggle {
  display: none;
}

/* ---- Status indicator ---- */
.anthem-player__status {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0 0.5rem 0 0.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.anthem-player__note {
  font-size: 0.875rem;
  opacity: 0.7;
  animation: pulse-note 2s ease-in-out infinite;
}

@keyframes pulse-note {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.anthem-player.is-paused .anthem-player__note,
.anthem-player.is-ended .anthem-player__note {
  animation: none;
  opacity: 0.5;
}

.anthem-player__label {
  font-size: 0.8125rem;
}

/* ---- Fade animation for audio (visual indicator) ---- */
.anthem-player.is-fading-in .anthem-player__controls {
  animation: glow-border 3s ease-out forwards;
}

@keyframes glow-border {
  0% {
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  }
  50% {
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 4px 24px rgba(11, 115, 210, 0.3), 0 0 20px rgba(255, 255, 255, 0.1);
  }
  100% {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  }
}

/* ---- Mobile responsive ---- */
@media (max-width: 768px) {
  .anthem-player {
    bottom: 1.25rem;
    right: 1.25rem;
    left: 1.25rem;
  }

  .anthem-player__controls {
    justify-content: center;
    width: 100%;
  }

  .anthem-player__status {
    display: none;
  }

  .anthem-player.is-ended .anthem-player__status {
    display: none;
  }
}

@media (max-width: 480px) {
  .anthem-player__controls {
    padding: 0.375rem 0.5rem;
    gap: 0.375rem;
  }

  .anthem-player__btn--toggle {
    width: 2.25rem;
    height: 2.25rem;
  }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .anthem-player__controls {
    transition: none;
    transform: none;
    opacity: 1;
  }

  .anthem-player__btn {
    transition: none;
  }

  .anthem-player__note {
    animation: none;
    opacity: 0.7;
  }

  @keyframes glow-border {
    0%, 100% {
      border-color: rgba(255, 255, 255, 0.2);
    }
  }
}

/* ---- Hidden state (when no audio file or error) ---- */
.anthem-player.is-unavailable {
  display: none;
}

/* ---- Dismiss animation ---- */
.anthem-player.is-dismissing {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
}