body {
  font-family: Inter, Arial, sans-serif;
  background: #0d0d0d;
  color: #e6e6e6;
  margin: 0;
  padding: 0;
}

header {
  text-align: center;
  padding: 30px 0;
}

.subtitle {
  color: #888;
  margin-top: -10px;
}

main {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding: 20px;
  justify-content: center;
}

.card {
  background: #1a1a1a;
  padding: 20px;
  width: 420px;
  border-radius: 10px;
  border: 1px solid #333;
}

h2 {
  margin-top: 0;
}

label {
  display: block;
  margin-top: 10px;
  margin-bottom: 5px;
  color: #bbb;
}

input, textarea {
  width: 100%;
  padding: 10px;
  background: #111;
  border: 1px solid #333;
  border-radius: 6px;
  color: #eee;
}

textarea {
  height: 120px;
  resize: vertical;
}

button.primary {
  width: 100%;
  margin-top: 15px;
  padding: 12px;
  background: #0a84ff;
  border: none;
  border-radius: 6px;
  color: white;
  font-size: 16px;
  cursor: pointer;
}

button.secondary {
  padding: 10px 20px;
  background: #333;
  border: none;
  border-radius: 6px;
  color: #eee;
  cursor: pointer;
}

button.primary:hover,
.help-button:hover {
  background: #1b8fff;
}

.output {
  background: #111;
  padding: 15px;
  border-radius: 6px;
  margin-top: 15px;
  height: 200px;
  overflow-y: auto;
  border: 1px solid #333;
}

/* Floating Help Button */
.help-button {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  background: #0a84ff;
  color: white;
  font-size: 24px;
  border: none;
  cursor: pointer;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
}

.modal-content {
  background: #1a1a1a;
  margin: 80px auto;
  padding: 25px;
  width: 500px;
  border-radius: 10px;
  border: 1px solid #333;
}

.format-block {
  background: #111;
  padding: 15px;
  border-radius: 6px;
  border: 1px solid #333;
  font-family: monospace;
  font-size: 14px;
  white-space: pre;
  overflow-x: auto;
  margin-bottom: 20px;
}