:root {
  color-scheme: light;
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
  background: #f5f7fa;
  color: #1d2430;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.panel {
  width: min(100%, 560px);
  background: #ffffff;
  border: 1px solid #d9e0ea;
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 18px 45px rgb(31 41 55 / 10%);
}

.heading {
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 6px;
  color: #5b6575;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: 0;
}

.form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 7px;
  color: #303948;
  font-size: 14px;
  font-weight: 650;
}

input {
  width: 100%;
  min-height: 42px;
  border: 1px solid #b8c2d1;
  border-radius: 6px;
  padding: 9px 11px;
  font: inherit;
  color: #1d2430;
  background: #ffffff;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  background: #146c5d;
  color: #ffffff;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

button:hover {
  background: #0f5e51;
}

.result {
  margin-top: 18px;
  display: grid;
  gap: 8px;
  border: 1px solid #bedbd4;
  border-radius: 6px;
  background: #eef9f6;
  padding: 13px;
  overflow-wrap: anywhere;
}

.result.error {
  border-color: #f2b6b6;
  background: #fff0f0;
}