/* Reset and base */
*, *::before, *::after {
  box-sizing: border-box;
}

/* Page load animation */
body {
  opacity: 0;
  transition: opacity 0.4s ease-out;
}

body.loaded {
  opacity: 1;
}

.carousel-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out 0.2s, transform 0.5s ease-out 0.2s;
}

body.loaded .carousel-card {
  opacity: 1;
  transform: translateY(0);
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  background: var(--theme-bg);
  color: var(--theme-text-primary);
}

/* Header */
.header {
  padding: 1.5rem 1rem 1rem;
  text-align: center;
}

.header-content {
  max-width: 600px;
  margin: 0 auto;
}

.title {
  font-family: var(--theme-font-display);
  font-size: 1.75rem;
  margin: 0;
  color: var(--theme-text-primary);
}

.subtitle {
  font-family: var(--theme-font-body);
  font-size: 0.95rem;
  margin: 0.25rem 0 0;
  color: var(--theme-text-secondary);
}

/* Carousel container */
.carousel-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1rem;
  min-height: 50vh;
}

.carousel {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 400px;
  touch-action: pan-y pinch-zoom;
}

/* Tap zones for navigation */
.carousel-zone {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 20%;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 5;
  opacity: 0;
  transition: opacity 0.2s;
}

.carousel-zone:hover {
  opacity: 1;
}

.carousel-zone--prev {
  left: -10%;
}

.carousel-zone--next {
  right: -10%;
}

/* Chevron icons for navigation zones */
.carousel-zone--prev::after,
.carousel-zone--next::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  border: 2px solid var(--theme-text-secondary);
  border-top: none;
  border-right: none;
  opacity: 0.5;
  transition: opacity 0.2s, transform 0.2s;
}

.carousel-zone--prev::after {
  right: 1rem;
  transform: translateY(-50%) rotate(45deg);
}

.carousel-zone--next::after {
  left: 1rem;
  transform: translateY(-50%) rotate(-135deg);
}

.carousel-zone:hover::after {
  opacity: 0.8;
}

.carousel-zone:active::after {
  transform: translateY(-50%) scale(0.9) rotate(45deg);
}

.carousel-zone--next:active::after {
  transform: translateY(-50%) scale(0.9) rotate(-135deg);
}

/* Card */
.carousel-card {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  perspective: 1000px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: box-shadow 0.3s;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  border-radius: 1rem;
}

.card-front {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 1.5rem;
  background: var(--theme-card-bg);
  border: 1px solid var(--theme-card-border);
  border-radius: 1rem;
}

@media (hover: hover) {
  .carousel-card:hover .card-inner {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  }
}

.phrase-fr {
  font-family: var(--theme-font-display);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  margin: 0;
  color: var(--theme-text-primary);
  flex-shrink: 0;
}

.phrase-en {
  font-family: var(--theme-font-body);
  font-size: 1.25rem;
  line-height: 1.4;
  text-align: center;
  margin: 0;
  color: var(--theme-text-secondary);
  flex-shrink: 0;
}

/* Audio button */
.audio-btn {
  width: 5rem;
  height: 5rem;
  border: none;
  border-radius: 50%;
  background: var(--theme-accent);
  color: var(--theme-accent-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, background-color 0.15s;
  flex-shrink: 0;
}

.audio-btn:hover {
  transform: scale(1.1);
}

.audio-btn:active {
  transform: scale(0.95);
}

.audio-btn.playing {
  animation: pulse 0.6s ease-in-out infinite;
}

.audio-btn.error {
  opacity: 0.4;
  cursor: not-allowed;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.15);
    opacity: 0.8;
  }
}

/* Counter */
.carousel-counter {
  font-family: var(--theme-font-body);
  font-size: 0.85rem;
  color: var(--theme-text-secondary);
  margin-top: 1.5rem;
}

/* Share button */
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
  padding: 0.5rem 1rem;
  font-family: var(--theme-font-body);
  font-size: 0.8rem;
  color: var(--theme-text-secondary);
  background: transparent;
  border: 1px solid var(--theme-card-border);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}

.share-btn:hover {
  background: var(--theme-accent-light);
  border-color: var(--theme-accent);
  color: var(--theme-accent);
}

.share-btn.copied {
  background: var(--theme-accent);
  border-color: var(--theme-accent);
  color: var(--theme-accent-text);
}

.share-btn.copied .share-btn-text::after {
  content: "!";
}

.share-btn-text {
  pointer-events: none;
}

/* Phrase list */
.phrase-list-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
  border-top: 1px solid var(--theme-card-border);
}

.phrase-list-title {
  font-family: var(--theme-font-display);
  font-size: 1rem;
  font-weight: 400;
  font-style: italic;
  margin: 0 0 1.5rem;
  color: var(--theme-text-secondary);
  text-align: center;
}

.phrase-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.phrase-list-item {
  padding: 1rem 1.25rem;
  background: var(--theme-card-bg);
  border: 1px solid var(--theme-card-border);
  border-radius: 0.75rem;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background-color 0.15s;
}

.phrase-list-item:hover {
  transform: translateX(4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  background: var(--theme-accent-light);
}

.phrase-list-item:active {
  transform: translateX(2px);
}

.phrase-list-item-fr {
  font-family: var(--theme-font-display);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--theme-text-primary);
  margin: 0 0 0.25rem;
  line-height: 1.4;
}

/* Responsive adjustments */
@media (max-width: 480px) {
  .header {
    padding: 1rem 0.75rem 0.75rem;
  }

  .title {
    font-size: 1.5rem;
  }

  .subtitle {
    font-size: 0.85rem;
  }

  .carousel-container {
    padding: 1.5rem 0.75rem;
  }

  .carousel-card {
    aspect-ratio: 4 / 5;
  }

  .phrase-fr {
    font-size: 1.25rem;
  }

  .audio-btn {
    width: 4rem;
    height: 4rem;
  }

  .carousel-counter {
    font-size: 0.75rem;
  }

  .share-btn {
    font-size: 0.7rem;
    padding: 0.4rem 0.75rem;
  }

  .phrase-list-container {
    padding: 2rem 0.75rem 3rem;
  }

  .phrase-list-item {
    padding: 0.75rem 1rem;
  }

  .phrase-list-item-fr {
    font-size: 0.85rem;
  }
}

@media (min-width: 768px) {
  .title {
    font-size: 2rem;
  }

  .carousel-card {
    max-width: 360px;
  }

  .phrase-fr {
    font-size: 1.75rem;
  }
}