:root {
  --bg: #0d1117;
  --text: #e6edf3;
  --accent: #58a6ff;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
}

h1 {
  text-align: center;
  padding: 20px;
  color: var(--accent);
  font-size: 1.6em;
  background: #161b22;
  border-bottom: 1px solid #30363d;
}

section {
  background: #161b22;
  margin: 16px;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid #21262d;
}

label {
  margin-top: 12px;
  display: block;
  color: var(--text);
  font-weight: 600;
}

input, select {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid #30363d;
}

button {
  margin-top: 16px;
  padding: 12px;
  width: 100%;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  font-size: 1em;
  background: linear-gradient(to right, #238636, #2ea043);
  color: white;
  cursor: pointer;
}

textarea {
  width: 100%;
  min-height: 120px;
  background: var(--bg);
  color: var(--text);
  font-family: monospace;
  border: 1px solid #30363d;
}