/* ===== Cronômetro flutuante (toggle) ===== */
#trainer-timer{
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 220px;
  background: rgba(13,17,23,0.92);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.55);
  backdrop-filter: blur(8px);
  z-index: 9999;
}

#trainer-timer .timer-display{
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-align: center;
  margin: 4px 0 10px;
}

#trainer-timer .timer-controls{
  display: flex;
  gap: 8px;
}

#trainer-timer button{
  flex: 1;
  padding: 10px 10px;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  background: rgba(255,255,255,0.10);
  color: var(--text, #e6edf3);
  font-size: 1.2rem;
  line-height: 1;
}

#trainer-timer button.primary{
  background: linear-gradient(90deg, var(--accent, #58a6ff), var(--accent-2, #2ea043));
  color: #fff;
}

#trainer-timer button:active{
  transform: translateY(1px);
}

#trainer-timer button:focus-visible{
  outline: 2px solid rgba(88,166,255,0.75);
  outline-offset: 2px;
}

@media (max-width: 600px){
  #trainer-timer{
    width: 200px;
    right: 12px;
    bottom: 12px;
  }
  #trainer-timer .timer-display{
    font-size: 1.8rem;
  }
}