* {
  position: relative;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #2C3A47;
  background: #f4f4f4;
}

.centered {
  text-align: center;
}

h1, h2, h3, h4, h5, h6, p {
  margin: 0 0 1em;
}

.app-wrapper {
  margin: 0 auto;
  padding: 60px 0 120px;
  max-width: 400px;
}

.app-panel {
  margin: 0 0 60px;
  padding: 26px 30px 32px;
  border-radius: 6px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  background: #ffffff;
}

.input-label {
  margin: 0 0 4px;
  font-size: 13px;
  color: #777777;
  display: block;
}

.input-field {
  margin: 0 0 24px;
  padding: 7px 12px 7px;
  width: 100%;
  font-size: 16px;
  line-height: 1.5;
  border: 1px solid #cccccc;
  border-radius: 4px;
  display: block;
  transition: border-color .2s ease;
}

.input-field:focus {
  border-color: #2C3A47;
}

.btn {
  padding: 10px 20px 11px;
  font-size: 16px;
  color: #ffffff;
  border: none;
  border-radius: 4px;
  outline: none;
  box-shadow: none;
  cursor: pointer;
  display: inline-block;
  background: #2bcbba;
  transition: background-color .2s ease;
}

.btn:hover {
  background: #10ddc9;
}

.btn[type="submit"] {
  margin-top: 6px;
}

.success-message {
  padding: 12px 30px 11px;
  text-align: center;
  color: #044e48;
  border-radius: 4px;
  display: none;
  background: #e0f8f6;
}