body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: yellow;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  text-align: center;
  padding: 20px;
}

header img {
  width: 80px;
  height: auto;
}

header h1 {
  color: black;
  margin: 10px 0 0 0;
}

header p {
  margin: 5px 0 0;
  font-size: 14px;
  color: #444;
}

.signal-card, .bonus-card {
  background-color: #003366;
  padding: 20px;
  border-radius: 12px;
  margin: 20px;
  width: 90%;
  max-width: 400px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.6);
}

.signal-card h2 {
  font-size: 18px;
  text-align: center;
  margin-bottom: 15px;
}

.label {
  font-weight: bold;
  margin-top: 10px;
  display: block;
  color: white;
}

select, .output, #getSignalBtn {
  width: 100%;
  padding: 10px;
  margin: 8px 0;
  border-radius: 8px;
  border: none;
  font-size: 16px;
}

select {
  background-color: white;
  color: black;
}

.output {
  text-align: center;
  background-color: #222;
  color: white;
}

#directionBox.direction-up {
  color: lightgreen;
  font-weight: bold;
}

#directionBox.direction-down {
  color: red;
  font-weight: bold;
}

#getSignalBtn {
  background-color: black;
  color: white;
  cursor: pointer;
  transition: 0.3s;
  font-weight: bold;
  font-size: 14px;
  padding: 10px 16px;
  width: 100%;
  border-radius: 6px;
}

#getSignalBtn:hover {
  transform: scale(1.05);
}

.bonus-card h3 {
  margin: 0;
  font-size: 18px;
  text-align: center;
}

.bonus-card button {
  margin-top: 12px;
  background-color: black;
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  width: 100%;
}

footer {
  background-color: black;
  width: 100%;
  padding: 15px;
  text-align: center;
  color: white;
}

.socials img {
  width: 24px;
  height: 24px;
  margin: 0 10px;
  vertical-align: middle;
  filter: drop-shadow(0 2px 4px black);
}

@media screen and (max-width: 500px) {
  header img {
    width: 60px;
  }

  .signal-card, .bonus-card {
    width: 95%;
  }
}