* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  background-color: #000;
  color: #FB00FF;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  min-height: 100vh;
  padding: 2rem;
}

.card {
  background-color: #000000;
  padding: 2rem;
  border-radius: 12px;
  width: 100%;
  max-width: 420px;
  text-align: center;
  box-shadow: 0 0 15px #FB00FF44;
}

h1 {
  margin-bottom: 1.5rem;
  font-weight: normal;
  font-size: 1.5rem;
  color: #FB00FF;
}

select {
  width: 100%;
  padding: 0.8rem;
  margin-bottom: 1rem;
  border: solid #FB00FF 2px;
  border-radius: 6px;
  font-size: 1rem;
  background-color: #000000;
  color: #FB00FF;

  transition: background-color 0.3s ease, transform 0.2s ease;
}

button {
  width: 100%;
  padding: 0.8rem;
  margin-bottom: 1rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  background-color: #000000;
  color: #FB00FF;

  transition: background-color 0.3s ease, transform 0.2s ease;
}

select:hover {
  background-color: #000000;
  transform: scale(1.01);
}

button:hover{
  transform: scale(1.01);
}

button {
  background-color: #FB00FF;
  color: #000;
  font-weight: bold;
}

button:disabled {
  background-color: #333;
  color: #888;
  cursor: not-allowed;
}

.chords {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  background-color: #111;
  padding: 1rem;
  border-radius: 8px;
  font-size: 1.2rem;
}

.chord {
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  background-color: #222;
  transition: background-color 0.3s, transform 0.3s;
}

.chord.active {
  background-color: #FB00FF;
  color: #000;
  transform: scale(1.1);
  font-weight: bold;
}

/* === FOOTER === */
.footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  background-color: #000000;
  border-top: 1px solid #333;
  padding: 0.5rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  gap: 1rem;
  box-sizing: border-box;
  flex-wrap: wrap;
}

.crypto-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 100%;
  padding: 0 1rem;
  box-sizing: border-box;
}

.crypto-btn {
  flex: 1 1 48px;
  max-width: 48px;
  height: 48px;
  background-color: #222;
  border: none;
  border-radius: 8px;
  color: #ccc;
  font-size: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
  min-width: 40px;
}

.crypto-btn:hover {
  background-color: #FB00FF;
  color: #000;
}

.crypto-btn img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
  filter: grayscale(100%);
  transition: filter 0.3s ease;
}

.crypto-btn:hover img {
  filter: none;
}

/* Message copie */
.copy-msg {
  position: fixed;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #FB00FF;
  color: #000;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-weight: bold;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  user-select: none;
  font-size: 14px;
  z-index: 200;
}

.copy-msg.visible {
  opacity: 1;
  pointer-events: auto;
}

/* === GO TO BUTTON === */
.GT-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  background-color: #FB00FF;
  color: #000;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: bold;
  z-index: 999;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.GT-btn:hover {
  background-color: #FF33FF;
  transform: scale(1.05);
}

/* === RESPONSIVE === */
@media (max-width: 480px) {
  body {
    padding: 0.5rem;
  }

  .card {
    max-width: 100%;
    padding: 1.5rem;
  }

  .crypto-buttons {
    gap: 0.5rem;
    padding: 0 0.5rem;
  }

  .crypto-btn {
    flex: 1 1 40px;
    max-width: 40px;
    height: 40px;
    font-size: 20px;
    min-width: 36px;
  }

  .crypto-btn img {
    width: 20px;
    height: 20px;
  }

  select {
    font-size: 0.9rem;
    padding: 0.5rem;
  }
}

@media (max-width: 768px) {
  .card {
    max-width: 90%;
  }

  .crypto-buttons {
    max-width: 100%;
  }

  select {
    font-size: 1rem;
  }
}

@media (min-width: 1200px) {
  .card {
    max-width: 400px;
  }

  .crypto-buttons {
    max-width: 400px;
  }
}