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

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

.card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 40px 36px;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.logo-icon {
  font-size: 48px;
  color: #8b5cf6;
  margin-bottom: 8px;
}

h1 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 4px;
  color: #f0f6fc;
}

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

form {
  display: flex;
  flex-direction: column;
  text-align: left;
}

label {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  color: #c9d1d9;
}

input {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 14px;
  color: #e6edf3;
  margin-bottom: 16px;
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: #8b5cf6;
}

button {
  background: #8b5cf6;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 4px;
}

button:hover {
  background: #7c3aed;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error {
  color: #f85149;
  font-size: 13px;
  margin-top: 12px;
  min-height: 20px;
}

footer {
  color: #484f58;
  font-size: 12px;
  margin-top: 24px;
}