:root {
  --text: #1f1d24;
  --bg: #fdfcf9;
  --panel: #fff;
  --border: #d9d5cc;
  --accent: #7a3e1d;
  --danger: #a3261a;
  color-scheme: light dark;
  font: 16px/1.5 system-ui, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #ece9f1;
    --bg: #17151b;
    --panel: #211e26;
    --border: #3a3541;
    --accent: #e0a070;
    --danger: #ff8a7a;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
  box-sizing: border-box;
}

main {
  width: min(100%, 22rem);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

h1 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
}

form {
  display: grid;
  gap: 0.75rem;
}

[hidden] {
  display: none !important;
}

label {
  display: grid;
  gap: 0.25rem;
  font-size: 0.9rem;
}

input {
  font: inherit;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: inherit;
}

button {
  font: inherit;
  font-weight: 600;
  padding: 0.7rem;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--bg);
  cursor: pointer;
}

#error {
  color: var(--danger);
  min-height: 1.5em;
  margin: 0.75rem 0 0;
}