* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0d1117;
  color: #e6edf3;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 480px;
}

.logo {
  font-size: 32px;
  margin-bottom: 8px;
}

h1 {
  font-size: 24px;
  margin-bottom: 8px;
}

p {
  color: #8b949e;
  margin-bottom: 24px;
  font-size: 14px;
}

label {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
  color: #c9d1d9;
}

input {
  width: 100%;
  padding: 10px 14px;
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  color: #e6edf3;
  font-size: 14px;
  margin-bottom: 16px;
  outline: none;
}

input:focus {
  border-color: #58a6ff;
}

button {
  width: 100%;
  padding: 10px;
  background: #238636;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  background: #2ea043;
}

button:disabled {
  background: #21262d;
  color: #8b949e;
  cursor: not-allowed;
}

.message {
  margin-top: 16px;
  padding: 12px;
  border-radius: 6px;
  font-size: 14px;
  display: none;
}

.message.success {
  background: #0f2a1a;
  border: 1px solid #238636;
  color: #3fb950;
}

.message.error {
  background: #2a0f0f;
  border: 1px solid #f85149;
  color: #f85149;
}