body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #1e1e2f;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  gap: 20px;
}

.canvas-container {
  width: 100%;
  max-width: 600px;
  /* max-height: 300px; */
  aspect-ratio: 2 / 1;
  background: #1a1a2d;
  border: 2px solid #333;
  border-radius: 8px;
  margin: 0 auto;
  overflow: hidden;
}

canvas {
  background-color: #12121c;
  /* border: 2px solid #444; */
  /* border-radius: 8px; */
  width: 100%;
  height: 100%;
  display: block;
}

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  max-width: 1200px;
  width: 100%;
}

.control-panel {
  background-color: #2b2b3d;
  border-radius: 16px;
  padding: 20px;
  width: 300px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
}

.control-panel h2 {
  margin: 0 0 10px;
  font-size: 20px;
  border-bottom: 1px solid #444;
  padding-bottom: 5px;
}

.stock-info,
.bank-info {
  background-color: #1a1a2d;
  padding: 12px;
  border-radius: 12px;
  font-size: 16px;
}

.buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.buttons button {
  padding: 10px;
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
  border: none;
  color: white;
  transition: background 0.2s;
}

/* Utility (start/stop) buttons */
.utility-btn {
  background-color: #3c88f7;
}

.utility-btn:hover {
  background-color: #1f6ed4;
}

.start-btn {
  grid-column: 1;
}

.stop-btn {
  grid-column: 2;
}

/* Buy buttons (green) */
.buy-btn {
  background-color: #2ecc71;
}

.buy-btn:hover {
  background-color: #27ae60;
}

/* Sell buttons (red) */
.sell-btn {
  background-color: #e74c3c;
}

.sell-btn:hover {
  background-color: #c0392b;
}

.leaderboard-box,
.submit-form {
  background: #2b2b3d;
  border-radius: 16px;
  padding: 20px;
  width: 350px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
}

.leaderboard-box h2,
.submit-form h2 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 20px;
  border-bottom: 1px solid #444;
  padding-bottom: 5px;
}

.leaderboard-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.leaderboard-item {
  background: #1a1a2d;
  padding: 10px 12px;
  margin-bottom: 8px;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

/* Highlight top 3 */
.gold {
  background: #3e3217;
  color: #f8d96c;
}

.silver {
  background: #3a3a3a;
  color: #cfcfcf;
}

.bronze {
  background: #402d22;
  color: #e5a97f;
}

.submit-form input,
.submit-form button {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  font-size: 14px;
  border-radius: 10px;
  border: none;
}

.submit-form input {
  background-color: #1a1a2d;
  color: white;
}

.submit-form button {
  background-color: #3498db;
  color: white;
  cursor: pointer;
}

.submit-form button:hover {
  background-color: #2980b9;
}