:root {
  --ink: #1f1d1a;
  --muted: #6c675f;
  --line: #dfddd6;
  --accent: #2f46c8;
  --danger: #b3261e;
  --ok: #1d6b3a;
  --paper: #f7f7f5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

.page {
  max-width: 440px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

.page h1 {
  margin: 0 0 1.25rem;
  font-size: 1.4rem;
}

.field {
  margin-bottom: 1rem;
}

label {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.92rem;
  font-weight: 600;
}

input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  font: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

input:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 1px;
}

input[aria-invalid="true"] {
  border-color: var(--danger);
}

.hint,
.error {
  margin: 0.3rem 0 0;
  font-size: 0.85rem;
}

.hint {
  color: var(--muted);
}

.error {
  color: var(--danger);
}

.error:empty {
  display: none;
}

.error:empty {
  display: none;
}

.submit {
  padding: 0.65rem 1.2rem;
  font: inherit;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}

.success {
  margin: 1rem 0 0;
  color: var(--ok);
}