:root {
  --bg-top: #fff2d9;
  --bg-bottom: #ffd7a8;
  --card: rgba(255, 255, 255, 0.72);
  --ink: #3a2918;
  --accent: #ff7a00;
  --accent-2: #19a974;
  --shadow: 0 18px 45px rgba(122, 64, 8, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Comic Sans MS", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, #fff9ec 0, transparent 28%),
    radial-gradient(circle at top right, #ffe1be 0, transparent 24%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

.app {
  width: min(100% - 16px, 680px);
  margin: 0 auto;
  padding: 10px 0 24px;
}

.button {
  border-radius: 20px;
  border: none;
  font: inherit;
}

.button {
  cursor: pointer;
  width: 100%;
  min-height: 54px;
  padding: 14px 18px;
  background: var(--accent);
  color: white;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(255, 122, 0, 0.28);
}

.button.secondary {
  background: var(--accent-2);
  box-shadow: 0 8px 18px rgba(25, 169, 116, 0.28);
}

.board {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.animal-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 10px;
  padding: 10px;
  min-height: 168px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.84);
  color: inherit;
  box-shadow: var(--shadow);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.animal-card:hover,
.animal-card:focus-visible {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 24px 45px rgba(122, 64, 8, 0.22);
}

.card-hitarea {
  display: grid;
  gap: 12px;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  color: inherit;
  cursor: pointer;
}

.card-image-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 18px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.4);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-badge {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 6px 18px rgba(58, 41, 24, 0.18);
  font-size: 1.4rem;
}

.card-body {
  padding: 0 4px 0 2px;
}

.animal-card.active::after {
  content: "";
  position: absolute;
  inset: auto -12px -12px auto;
  width: 78px;
  height: 78px;
  background: radial-gradient(circle, rgba(255, 122, 0, 0.28), transparent 65%);
}

.animal-card h2 {
  margin: 0 0 6px;
  font-size: 1.2rem;
}

.animal-card p {
  margin: 0;
  font-size: 0.92rem;
  opacity: 0.8;
}

.photo-credit {
  padding: 0 4px 2px 2px;
  color: rgba(58, 41, 24, 0.72);
  font-size: 0.72rem;
  text-decoration: none;
}

.photo-credit:hover,
.photo-credit:focus-visible {
  text-decoration: underline;
}

.quiz {
  margin-top: 16px;
  padding: 18px;
  border-radius: 24px;
  background: rgba(58, 41, 24, 0.9);
  color: white;
  box-shadow: var(--shadow);
}

.quiz h3 {
  font-size: 1.2rem;
}

.quiz h3,
.quiz p {
  margin: 0;
}

.quiz-feedback,
.quiz-choices {
  margin-top: 12px;
}

.quiz-actions {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.footer-note {
  margin-top: 14px;
  font-size: 0.9rem;
  opacity: 0.86;
}

@media (min-width: 640px) {
  .app {
    width: min(100% - 28px, 860px);
    padding-top: 18px;
  }

  .quiz {
    padding: 24px;
  }

  .quiz-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .animal-card {
    min-height: 190px;
    padding: 12px;
  }

  .animal-card h2 {
    font-size: 1.35rem;
  }
}

@media (min-width: 960px) {
  .app {
    width: min(100% - 40px, 1100px);
    padding-top: 24px;
    padding-bottom: 40px;
  }

  .board {
    margin-top: 24px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .animal-card {
    min-height: 210px;
    border-radius: 28px;
  }

  .quiz {
    margin-top: 24px;
    padding: 24px;
    border-radius: 32px;
  }

  .quiz-actions {
    grid-template-columns: repeat(2, max-content);
    justify-content: flex-start;
  }

  .button {
    width: auto;
    min-width: 170px;
  }
}