body {
  font-family: 'Roboto', sans-serif;
  background-color: #2c3e50;
  color: #ecf0f1;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background-color: #34495e;
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: #3498db;
}

.options-container {
  margin-bottom: 1.5rem;
}

#zoneSelector {
  width: 10rem;
  font-size: 7rem;
}

.timer-container {
  background-color: #2c3e50;
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

#timer {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

#status {
  font-size: 1.2rem;
  font-weight: 300;
  color: #bdc3c7;
}

.button-container {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

button {
  font-size: 1rem;
  padding: 0.7rem 1.5rem;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.1s;
}

button:hover {
  transform: translateY(-2px);
}

button:active {
  transform: translateY(0);
}

#toggleBtn {
  background-color: #2ecc71;
  color: white;
}

#toggleBtn:hover {
  background-color: #27ae60;
}

#resetBtn {
  background-color: #e74c3c;
  color: white;
}

#resetBtn:hover {
  background-color: #c0392b;
}

#fastForwardBtn {
  background-color: #f39c12;
  color: white;
}

#fastForwardBtn:hover {
  background-color: #d35400;
}

#sessionCount {
  font-size: 1.2rem;
  color: #bdc3c7;
}

#extendBtn {
  background-color: #9b5;
  color: white;
}

#extendBtn:hover {
  background-color: #8e44ad;
}

#nextSessionBtn {
  background-color: #3498db;
  color: white;}

#nextSessionBtn:hover {
  background-color: #2980b9;
}

#nextSessionBtn:disabled {
  background-color: #95a5a6;
  cursor: not-allowed;
}

#enableNotifsBtn {
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: #007BFF;
  cursor: pointer;
  transition: background-color 0.3s;
}
#enableNotifsBtn:hover {
  background-color: #0056b3;
}
#enableNotifsBtn svg {
  fill: #fff;
  width: 24px;
  height: 24px;
}