:root {
  --narration-safe-top: env(safe-area-inset-top, 0px);
  --narration-safe-right: env(safe-area-inset-right, 0px);
  --narration-safe-bottom: env(safe-area-inset-bottom, 0px);
  --narration-safe-left: env(safe-area-inset-left, 0px);
}

.reveal .controls,
.reveal .slide-menu-button {
  display: none !important;
}

.narration-player-overlay[hidden],
.narration-player__menu[hidden] {
  display: none !important;
}

.narration-player-overlay {
  position: fixed;
  inset: 0;
  z-index: 10002;
  display: grid;
  min-height: 100vh;
  place-items: center;
  box-sizing: border-box;
  padding:
    calc(24px + var(--narration-safe-top))
    calc(24px + var(--narration-safe-right))
    calc(24px + var(--narration-safe-bottom))
    calc(24px + var(--narration-safe-left));
  overflow-y: auto;
  background: rgba(15, 23, 42, 0.14);
  font-family: "Source Sans Pro", "Helvetica Neue", Arial, sans-serif;
  -webkit-overflow-scrolling: touch;
}

@supports (min-height: 100dvh) {
  .narration-player-overlay {
    min-height: 100dvh;
  }
}

.narration-player-overlay__panel {
  width: min(470px, 100%);
  max-height: 100%;
  box-sizing: border-box;
  padding: 30px 34px 32px;
  overflow-y: auto;
  border: 1px solid rgba(148, 163, 184, 0.7);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 18px 55px rgba(15, 23, 42, 0.22);
  color: #172033;
  text-align: center;
  -webkit-overflow-scrolling: touch;
}

.narration-player-overlay__eyebrow {
  margin: 0 0 8px;
  color: #4f6f8f;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.narration-player-overlay__panel h1 {
  margin: 0;
  color: #0f172a;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.15;
}

.narration-player-overlay__panel p:not(.narration-player-overlay__eyebrow) {
  margin: 14px 0 22px;
  color: #475569;
  font-size: 17px;
  line-height: 1.4;
}

.narration-player-overlay__primary,
.narration-player__button {
  appearance: none;
  border: 1px solid #9db2c7;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  color: #17324d;
  cursor: pointer;
  font: inherit;
  font-weight: 650;
  touch-action: manipulation;
}

.narration-player-overlay__primary {
  min-width: 190px;
  min-height: 44px;
  padding: 11px 18px;
  border-color: #1f6fb2;
  background: #1f6fb2;
  color: #ffffff;
  font-size: 16px;
}

.narration-player-overlay__primary:hover,
.narration-player-overlay__primary:focus-visible {
  background: #185d96;
}

.narration-player-overlay__resources {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-top: 16px;
  font-size: 14px;
}

.narration-player-overlay__resources a,
.narration-player__menu-resources a {
  color: #145f9f;
  font-weight: 650;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.narration-player-overlay__primary:focus-visible,
.narration-player__button:focus-visible,
.narration-player__menu button:focus-visible,
.narration-player-overlay__resources a:focus-visible,
.narration-player__menu-resources a:focus-visible {
  outline: 3px solid #f59e0b;
  outline-offset: 2px;
}

.narration-player {
  position: fixed;
  left: 50%;
  bottom: calc(14px + var(--narration-safe-bottom));
  z-index: 10001;
  display: flex;
  align-items: center;
  gap: 7px;
  width: min(
    650px,
    calc(100vw - 30px - var(--narration-safe-left) - var(--narration-safe-right))
  );
  min-height: 52px;
  box-sizing: border-box;
  padding: 8px 10px 7px;
  overflow: visible;
  transform: translateX(-50%);
  border: 1px solid rgba(148, 163, 184, 0.82);
  border-radius: 12px;
  background: rgba(248, 250, 252, 0.95);
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.18);
  color: #172033;
  font-family: "Source Sans Pro", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1;
  transition: opacity 180ms ease, box-shadow 180ms ease;
}

.narration-player__progress {
  position: absolute;
  top: -1px;
  right: 10px;
  left: 10px;
  height: 3px;
  overflow: hidden;
  border-radius: 999px;
  background: #d9e2ec;
}

.narration-player__progress-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: #1f6fb2;
  transition: width 120ms linear;
}

.narration-player__transport,
.narration-player__meta {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}

.narration-player__transport {
  flex: 0 1 auto;
}

.narration-player__meta {
  flex: 1 0 auto;
  justify-content: flex-end;
}

.narration-player__button {
  min-height: 36px;
  padding: 7px 12px;
  white-space: nowrap;
}

.narration-player__button:hover,
.narration-player__button:focus-visible {
  border-color: #1f6fb2;
  color: #145f9f;
}

.narration-player__button:disabled {
  cursor: default;
  opacity: 0.42;
}

.narration-player__button--primary {
  min-width: 78px;
  border-color: #1f6fb2;
  background: #1f6fb2;
  color: #ffffff;
}

.narration-player__button--primary:hover,
.narration-player__button--primary:focus-visible {
  background: #185d96;
  color: #ffffff;
}

.narration-player__step-icon {
  display: none;
  font-size: 20px;
  line-height: 1;
}

.narration-player__count {
  min-width: 62px;
  color: #475569;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  text-align: center;
  white-space: nowrap;
}

.narration-player__menu-wrap {
  position: relative;
}

.narration-player__menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 12px);
  width: min(
    430px,
    calc(100vw - 30px - var(--narration-safe-left) - var(--narration-safe-right))
  );
  max-height: min(
    520px,
    calc(100vh - 100px - var(--narration-safe-top) - var(--narration-safe-bottom))
  );
  box-sizing: border-box;
  padding: 8px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid #b9c7d5;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.22);
  -webkit-overflow-scrolling: touch;
}

@supports (max-height: 100dvh) {
  .narration-player__menu {
    max-height: min(
      520px,
      calc(100dvh - 100px - var(--narration-safe-top) - var(--narration-safe-bottom))
    );
  }
}

.narration-player__menu ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.narration-player__menu-resources {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-bottom: 7px;
  padding-bottom: 8px;
  border-bottom: 1px solid #d9e2ec;
}

.narration-player__menu-resources a {
  display: grid;
  min-height: 44px;
  padding: 6px 8px;
  box-sizing: border-box;
  place-items: center;
  border-radius: 6px;
  background: #edf4fa;
  line-height: 1.2;
  text-align: center;
  touch-action: manipulation;
}

.narration-player__menu-resources a:hover,
.narration-player__menu-resources a:focus-visible {
  background: #dbeaf6;
}

.narration-player__menu button {
  width: 100%;
  min-height: 44px;
  padding: 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #26364a;
  cursor: pointer;
  font: inherit;
  line-height: 1.25;
  text-align: left;
  touch-action: manipulation;
}

.narration-player__menu button:hover,
.narration-player__menu button:focus-visible,
.narration-player__menu button[aria-current="true"] {
  background: #edf4fa;
  color: #145f9f;
}

.narration-player__status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

#narration-audio {
  display: none;
}

@media (pointer: coarse) {
  .narration-player {
    min-height: 58px;
  }

  .narration-player__button {
    min-height: 44px;
  }
}

@media (hover: hover) and (pointer: fine) {
  .narration-player[data-state="playing"]:not(:hover):not(:focus-within) {
    opacity: 0.42;
    box-shadow: 0 4px 18px rgba(15, 23, 42, 0.12);
  }
}

@media (max-width: 620px) {
  .narration-player {
    right: calc(8px + var(--narration-safe-right));
    left: calc(8px + var(--narration-safe-left));
    bottom: calc(8px + var(--narration-safe-bottom));
    gap: 5px;
    width: auto;
    min-height: 58px;
    padding: 8px 7px 7px;
    transform: none;
  }

  .narration-player__transport,
  .narration-player__meta {
    gap: 5px;
  }

  .narration-player__transport {
    flex: 1 1 auto;
  }

  .narration-player__meta {
    flex: 0 0 auto;
  }

  .narration-player__button {
    min-height: 44px;
    padding-right: 10px;
    padding-left: 10px;
  }

  .narration-player__button--step {
    display: inline-grid;
    flex: 0 0 44px;
    width: 44px;
    padding: 0;
    place-items: center;
  }

  .narration-player__step-icon {
    display: inline;
  }

  .narration-player__step-label {
    display: none;
  }

  .narration-player__button--primary {
    flex: 1 1 72px;
    min-width: 72px;
    padding-right: 8px;
    padding-left: 8px;
  }

  .narration-player__count {
    min-width: 48px;
    font-size: 13px;
  }

  #narration-slides-button {
    padding-right: 9px;
    padding-left: 9px;
  }

  .narration-player__menu {
    width: calc(
      100vw - 16px - var(--narration-safe-left) - var(--narration-safe-right)
    );
  }

  .narration-player-overlay {
    padding:
      calc(16px + var(--narration-safe-top))
      calc(16px + var(--narration-safe-right))
      calc(16px + var(--narration-safe-bottom))
      calc(16px + var(--narration-safe-left));
  }

  .narration-player-overlay__panel {
    padding: 24px 20px 26px;
    border-radius: 12px;
  }

  .narration-player-overlay__panel h1 {
    font-size: 27px;
  }

  .narration-player-overlay__panel p:not(.narration-player-overlay__eyebrow) {
    font-size: 16px;
  }
}

@media (max-width: 350px) {
  .narration-player {
    gap: 4px;
    padding-right: 5px;
    padding-left: 5px;
  }

  .narration-player__transport,
  .narration-player__meta {
    gap: 4px;
  }

  .narration-player__count {
    min-width: 44px;
    font-size: 12px;
  }

  #narration-slides-button {
    padding-right: 7px;
    padding-left: 7px;
  }
}

@media (max-height: 430px) {
  .narration-player {
    bottom: calc(5px + var(--narration-safe-bottom));
  }

  .narration-player-overlay {
    place-items: start center;
    padding:
      calc(10px + var(--narration-safe-top))
      calc(12px + var(--narration-safe-right))
      calc(10px + var(--narration-safe-bottom))
      calc(12px + var(--narration-safe-left));
  }

  .narration-player-overlay__panel {
    margin: auto 0;
    padding: 18px 22px 20px;
  }

  .narration-player-overlay__eyebrow {
    margin-bottom: 5px;
    font-size: 12px;
  }

  .narration-player-overlay__panel h1 {
    font-size: 25px;
  }

  .narration-player-overlay__panel p:not(.narration-player-overlay__eyebrow) {
    margin: 9px 0 14px;
    font-size: 15px;
  }

  .narration-player-overlay__resources {
    margin-top: 12px;
  }

  .narration-player__menu {
    max-height: calc(
      100vh - 82px - var(--narration-safe-top) - var(--narration-safe-bottom)
    );
  }
}

@supports (max-height: 100dvh) {
  @media (max-height: 430px) {
    .narration-player__menu {
      max-height: calc(
        100dvh - 82px - var(--narration-safe-top) - var(--narration-safe-bottom)
      );
    }
  }
}

/*
 * Short landscape screens have almost the same aspect ratio as the slides, so
 * a bottom toolbar necessarily covers content. Reserve a narrow side rail
 * instead: this preserves substantially more slide scale than a bottom rail.
 */
@media (orientation: landscape) and (max-height: 430px) {
  .reveal {
    width: calc(
      100% - 64px - var(--narration-safe-left) - var(--narration-safe-right)
    );
    height: calc(
      100% - var(--narration-safe-top) - var(--narration-safe-bottom)
    );
    margin-top: var(--narration-safe-top);
    margin-left: var(--narration-safe-left);
  }

  .narration-player {
    top: calc(50% - 114px);
    right: calc(5px + var(--narration-safe-right));
    bottom: auto;
    left: auto;
    flex-direction: column;
    gap: 5px;
    width: 54px;
    height: 228px;
    min-height: 228px;
    padding: 8px 5px 7px;
    transform: none;
  }

  .narration-player__progress {
    right: 5px;
    left: 5px;
  }

  .narration-player__transport,
  .narration-player__meta {
    flex: 0 0 auto;
    flex-direction: column;
    gap: 5px;
    width: 44px;
  }

  .narration-player__button {
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    font-size: 12px;
  }

  .narration-player__button--step {
    display: inline-grid;
    width: 44px;
    padding: 0;
    place-items: center;
  }

  .narration-player__step-icon {
    display: inline;
  }

  .narration-player__step-label {
    display: none;
  }

  .narration-player__button--primary {
    flex: 0 0 44px;
    width: 44px;
    min-width: 44px;
  }

  .narration-player__count {
    width: 44px;
    min-width: 44px;
    font-size: 12px;
  }

  #narration-slides-button {
    width: 44px;
    padding: 0;
    font-size: 12px;
  }

  .narration-player__menu {
    position: fixed;
    top: calc(5px + var(--narration-safe-top));
    right: calc(67px + var(--narration-safe-right));
    bottom: calc(5px + var(--narration-safe-bottom));
    width: min(
      430px,
      calc(
        100vw - 78px - var(--narration-safe-left) - var(--narration-safe-right)
      )
    );
    max-height: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .narration-player,
  .narration-player__progress-fill {
    transition: none;
  }
}