body {
  font-family: 'Helvetica', 'Arial', sans-serif;
  background-color: #03010c;
  color: #ffffff;
  text-align: center;
  padding: 1rem;
  margin: 0;
  min-height: 100vh;
  width: 100%;
}

h1 {
  font-size: 1.3rem;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  font-weight: normal;
}

p {
  font-size: 1.1rem;
  margin-bottom: 3rem;
  line-height: 1.6;
  opacity: 0.9;
}

.cards {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  margin: 2rem 0;
  flex-wrap: nowrap;
}

.card {
  width: 200px;
  height: 344px;
  cursor: pointer;
  border: none;
  padding: 0;
  background: none;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border: 1px solid #444;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  transition: filter 0.2s ease;
  background-color: #03010c;
}

.card:hover .card-img {
  filter: brightness(1.1);
}

#reading-output {
  max-width: 600px;
  margin: 2rem auto;
  font-size: 1.3rem;
  line-height: 1.6;
  opacity: 0;
  transition: opacity 1s ease;
  padding: 0 1rem;
}

#reading-output.visible {
  opacity: 1;
}

.loading {
  display: inline-block;
  position: relative;
  width: 80px;
  height: 20px;
  margin: 2rem auto;
}

.loading div {
  position: absolute;
  top: 8px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #ffffff;
  animation-timing-function: cubic-bezier(0, 1, 1, 0);
}

.loading div:nth-child(1) {
  left: 8px;
  animation: loading1 0.6s infinite;
}

.loading div:nth-child(2) {
  left: 8px;
  animation: loading2 0.6s infinite;
}

.loading div:nth-child(3) {
  left: 32px;
  animation: loading2 0.6s infinite;
}

.loading div:nth-child(4) {
  left: 56px;
  animation: loading3 0.6s infinite;
}

@keyframes loading1 {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}

@keyframes loading3 {
  0% { transform: scale(1); }
  100% { transform: scale(0); }
}

@keyframes loading2 {
  0% { transform: translate(0, 0); }
  100% { transform: translate(24px, 0); }
}

#reset-btn {
  background: none;
  border: 1px solid #ffffff;
  color: #ffffff;
  padding: 0.6rem 1.2rem;
  font-size: 1.1rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 1rem;
}

#reset-btn:hover {
  background: #ffffff;
  color: #03010c;
}

/* Mobile styles */
@media (max-width: 768px) {
  body {
    padding: 0.5rem;
  }

  h1 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
  }

  .cards {
    flex-direction: column;
    gap: 1rem;
    margin: 1rem 0;
  }

  .card {
    width: 240px;
    height: 412px;
  }

  #reading-output {
    font-size: 1.1rem;
    margin: 1rem auto;
    padding: 0 1rem;
  }

  #reset-btn {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    font-size: 1rem;
  }

  .side-reset {
    margin-left: 0;
  }
}

/* Extra small mobile styles */
@media (max-width: 480px) {
  h1 {
    font-size: 1rem;
    letter-spacing: 1px;
  }

  .card {
    width: 200px;
    height: 344px;
  }

  #reading-output {
    font-size: 1rem;
  }
}