/*
 * INSANOS — MÚSICA EN VIVO
 * Botón de reproducción con ecualizador animado, FAB flotante global y modal
 * del reproductor. Usa los tokens semánticos de theme-system.css para vivir
 * en ambos temas sin tocar las capas existentes.
 */

/* ============================================================
 * ECUALIZADOR (barras animadas)
 * ============================================================ */
.music-eq {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  height: 16px;
}
.music-eq i {
  display: block;
  width: 3px;
  height: 100%;
  border-radius: 2px;
  background: var(--insanos-muted);
  transform-origin: center;
  animation: insanos-eq-breathe 1.15s ease-in-out infinite;
}
.music-eq i:nth-child(1) { animation-delay: 0s;    animation-duration: 1.1s; }
.music-eq i:nth-child(2) { animation-delay: .16s;  animation-duration: 1.35s; }
.music-eq i:nth-child(3) { animation-delay: .32s;  animation-duration: .95s; }
.music-eq i:nth-child(4) { animation-delay: .08s;  animation-duration: 1.22s; }

.music-eq.is-playing i {
  background: var(--insanos-accent);
  animation-name: insanos-eq-bounce;
}
.music-eq.is-playing i:nth-child(1) { animation-duration: .62s; }
.music-eq.is-playing i:nth-child(2) { animation-duration: .82s; }
.music-eq.is-playing i:nth-child(3) { animation-duration: .58s; }
.music-eq.is-playing i:nth-child(4) { animation-duration: .74s; }

@keyframes insanos-eq-breathe {
  0%, 100% { transform: scaleY(.42); }
  50%      { transform: scaleY(.78); }
}
@keyframes insanos-eq-bounce {
  0%, 100% { transform: scaleY(.32); }
  50%      { transform: scaleY(1); }
}

@media (prefers-reduced-motion: reduce) {
  .music-eq i { animation: none !important; }
  .music-eq.is-playing i { animation: none !important; transform: scaleY(.62); }
}

/* ============================================================
 * BOTÓN EN HEADERS (lector y estudio)
 * ============================================================ */
.music-toggle {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  padding: 0;
  border: 1px solid var(--insanos-line-strong);
  border-radius: 10px;
  background: transparent;
  color: var(--insanos-muted);
  cursor: pointer;
  transition: color .2s, border-color .2s, background .2s, transform .2s;
}
.music-toggle:hover {
  color: var(--insanos-ink);
  border-color: var(--insanos-accent);
  background: var(--insanos-panel-hover);
  transform: translateY(-1px);
}
.music-toggle .music-eq i { animation-play-state: paused; }
.music-toggle:hover .music-eq i { animation-play-state: running; }
.music-toggle.is-playing .music-eq i { animation-play-state: running; }
.music-toggle.is-playing {
  color: var(--insanos-accent-ink);
  border-color: var(--insanos-accent);
  background: var(--insanos-accent-soft);
}

/* ============================================================
 * FAB FLOTANTE GLOBAL
 * ============================================================ */
.music-fab {
  position: fixed;
  right: 18px;
  bottom: 76px;
  z-index: 1950;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--insanos-line-strong);
  border-radius: 50%;
  background: var(--insanos-panel-raised);
  color: var(--insanos-muted);
  box-shadow: var(--insanos-shadow);
  cursor: pointer;
  transition: color .2s, border-color .2s, transform .2s, box-shadow .2s;
}
.music-fab:hover {
  color: var(--insanos-ink);
  border-color: var(--insanos-accent);
  transform: translateY(-2px);
}
.music-fab.is-playing {
  color: var(--insanos-accent-ink);
  border-color: var(--insanos-accent);
  background: var(--insanos-accent-soft);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--insanos-accent) 16%, transparent), var(--insanos-shadow);
}
.music-fab .music-eq { height: 18px; }

@media (max-width: 720px) {
  .music-fab { right: 12px; bottom: 68px; }
}

/* El lector inmersivo mueve el control de tema a su propio carril;
   el FAB sube para no pisarlo. */
.chapter-reader .music-fab { bottom: 128px; }
@media (max-width: 720px) {
  .chapter-reader .music-fab { bottom: 120px; }
}

/* ============================================================
 * PANEL FLOTANTE DEL REPRODUCTOR
 * Panel no bloqueante: la app de detrás sigue siendo navegable
 * mientras suena la música. El contenedor no captura clics.
 * ============================================================ */
.music-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2100;
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  padding: 14px;
  pointer-events: none;
}

.music-modal {
  pointer-events: auto;
  width: min(620px, 100%);
  max-height: calc(100dvh - 20px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--insanos-line-strong);
  border-radius: 18px;
  background: var(--insanos-panel-raised);
  color: var(--insanos-ink);
  box-shadow: var(--insanos-shadow-raised);
  opacity: 0;
  visibility: hidden;
  transform: translateY(18px) scale(.97);
  transition: opacity .28s ease, transform .34s cubic-bezier(.22,.9,.32,1), visibility .28s;
}
.music-modal-backdrop.open .music-modal {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.music-modal-head {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--insanos-line);
  background: var(--insanos-panel-soft);
}
.music-modal-head .music-eq { height: 20px; }
.music-modal-head-copy { min-width: 0; }
.music-modal-head-copy span {
  color: var(--insanos-accent);
  font: 800 .6rem var(--insanos-sans);
  text-transform: uppercase;
  letter-spacing: .1em;
}
.music-modal-head-copy h2 {
  margin: .2rem 0 0;
  font: 760 1.3rem/1.1 var(--insanos-display);
}
.music-modal-close {
  margin-left: auto;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--insanos-line-strong);
  border-radius: 9px;
  background: var(--insanos-panel);
  color: var(--insanos-muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}
.music-modal-close:hover {
  color: var(--insanos-ink);
  border-color: var(--insanos-accent);
}
.music-modal-body {
  height: min(540px, calc(100dvh - 170px));
  background: var(--insanos-canvas);
}
.music-modal-body iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: var(--insanos-canvas);
}
.music-modal-error {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .6rem 1.2rem;
  background: color-mix(in srgb, #ff7d7d 10%, transparent);
  border-top: 1px solid color-mix(in srgb, #ff7d7d 32%, transparent);
  color: #ff8f8f;
  font: 600 .72rem/1.4 var(--insanos-sans);
}
.music-modal-error[hidden] { display: none; }
.music-modal-error span { flex: 1; }
.music-modal-retry {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 0 .85rem;
  border: 1px solid color-mix(in srgb, #ff7d7d 42%, var(--insanos-line));
  border-radius: 9px;
  background: var(--insanos-panel);
  color: var(--insanos-ink);
  font: 700 .68rem var(--insanos-sans);
  cursor: pointer;
}
.music-modal-retry:hover { border-color: #ff8f8f; }
.music-modal-backdrop.has-player-error .music-modal-body { min-height: 220px; }
.music-modal-note {
  padding: .7rem 1.2rem;
  border-top: 1px solid var(--insanos-line);
  color: var(--insanos-muted);
  font: 550 .68rem/1.5 var(--insanos-sans);
}

@media (max-width: 720px) {
  .music-modal-backdrop { padding: 10px; }
  .music-modal { width: 100%; }
}

/* ============================================================
 * HALO DEL FAB MIENTRAS SUENA
 * ============================================================ */
body.insanos-music-playing .music-fab {
  color: var(--insanos-accent-ink);
  border-color: var(--insanos-accent);
  background: var(--insanos-accent-soft);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--insanos-accent) 16%, transparent), var(--insanos-shadow);
  animation: insanos-fab-breathe 2.4s ease-in-out infinite;
}
body.insanos-music-playing .music-fab::before {
  content: "";
  position: absolute;
  inset: -7px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--insanos-accent) 38%, transparent), transparent 66%);
  animation: insanos-fab-pulse 2.4s ease-in-out infinite;
  z-index: -1;
}
@keyframes insanos-fab-pulse {
  0%, 100% { opacity: .5; transform: scale(.9); }
  50%      { opacity: 1; transform: scale(1.2); }
}
@keyframes insanos-fab-breathe {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-3px); }
}

/* ============================================================
 * MINI-REPRODUCTOR PERSISTENTE
 * Aparece al colapsar el panel con música en curso: la app queda
 * libre y una pastilla flotante mantiene el control y el detalle.
 * ============================================================ */
.insanos-mini {
  position: fixed;
  left: 50%;
  bottom: 14px;
  z-index: 2050;
  display: flex;
  align-items: center;
  gap: 12px;
  width: min(560px, calc(100vw - 24px));
  padding: 10px 14px;
  border: 1px solid color-mix(in srgb, var(--insanos-accent) 50%, var(--insanos-line));
  border-radius: 18px;
  background: color-mix(in srgb, var(--insanos-panel-raised) 90%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: 0 18px 44px -18px color-mix(in srgb, var(--insanos-accent) 45%, transparent), var(--insanos-shadow-raised);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, calc(100% + 22px));
  transition: opacity .28s ease, transform .42s cubic-bezier(.22,.9,.32,1), visibility .28s;
  isolation: isolate;
}
.insanos-mini.open {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
.insanos-mini.is-playing::before {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: -1;
  border-radius: 20px;
  background: linear-gradient(120deg,
    color-mix(in srgb, var(--insanos-accent) 62%, transparent),
    color-mix(in srgb, var(--insanos-accent) 12%, transparent),
    color-mix(in srgb, var(--insanos-accent) 62%, transparent));
  background-size: 300% 300%;
  filter: blur(14px);
  animation: insanos-aurora 6s ease-in-out infinite;
}
@keyframes insanos-aurora {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

.insanos-mini-progress {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 0;
  height: 3px;
  border-radius: 3px;
  overflow: hidden;
  background: color-mix(in srgb, var(--insanos-accent) 16%, transparent);
}
.insanos-mini-progress-bar {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--insanos-accent), color-mix(in srgb, var(--insanos-accent) 55%, #fff));
  transition: width .9s linear;
}

.insanos-mini .music-eq { height: 22px; gap: 3px; }
.insanos-mini-eq {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--insanos-muted);
  cursor: pointer;
}
.insanos-mini-copy { flex: 1; min-width: 0; }
.insanos-mini-label {
  display: block;
  color: var(--insanos-accent);
  font: 800 .56rem var(--insanos-sans);
  text-transform: uppercase;
  letter-spacing: .12em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.insanos-mini-title {
  display: block;
  margin-top: 1px;
  color: var(--insanos-ink);
  font: 700 .92rem/1.25 var(--insanos-sans);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.insanos-mini-play,
.insanos-mini-next,
.insanos-mini-stop {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--insanos-line-strong);
  border-radius: 50%;
  background: var(--insanos-panel);
  color: var(--insanos-muted);
  cursor: pointer;
  transition: color .2s, border-color .2s, transform .15s;
}
.insanos-mini-play {
  border-color: transparent;
  background: linear-gradient(135deg, var(--insanos-accent), color-mix(in srgb, var(--insanos-accent) 60%, #6a4df0));
  color: var(--insanos-accent-ink);
  box-shadow: 0 6px 16px -6px color-mix(in srgb, var(--insanos-accent) 65%, transparent);
}
.insanos-mini-play:hover,
.insanos-mini-next:hover,
.insanos-mini-stop:hover { transform: translateY(-1px); }
.insanos-mini-next:hover { color: var(--insanos-accent); border-color: color-mix(in srgb, var(--insanos-accent) 55%, transparent); }
.insanos-mini-stop:hover { color: #ff7d7d; border-color: color-mix(in srgb, #ff7d7d 55%, transparent); }
.insanos-mini-play:active,
.insanos-mini-next:active,
.insanos-mini-stop:active { transform: scale(.93); }
.insanos-mini svg { width: 17px; height: 17px; }

@media (max-width: 720px) {
  .insanos-mini { bottom: 10px; width: calc(100vw - 20px); }
}

@media (prefers-reduced-motion: reduce) {
  body.insanos-music-playing .music-fab { animation: none; }
  body.insanos-music-playing .music-fab::before { animation: none; }
  .insanos-mini.is-playing::before { animation: none; }
  .insanos-mini-progress-bar { transition: none; }
}