:root {
  --bg: #f5f7f2;
  --surface: #ffffff;
  --ink: #18211e;
  --muted: #65736e;
  --line: #dbe3de;
  --brand: #187063;
  --brand-strong: #0c4e48;
  --danger: #bd3f3f;
}

* {
  box-sizing: border-box;
}

body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

form {
  display: grid;
  gap: 14px;
  width: min(420px, calc(100vw - 32px));
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 16px 38px rgba(24, 33, 30, 0.08);
}

h1,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
}

p {
  color: var(--muted);
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
button {
  min-height: 44px;
  border-radius: 8px;
  font: inherit;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  padding: 0 12px;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: var(--brand);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  line-height: 1;
}

button:hover {
  background: var(--brand-strong);
}

.error {
  min-height: 20px;
  color: var(--danger);
  font-size: 13px;
  font-weight: 700;
}