:root {
  --ink: #1f2430;
  --paper: #f4f1ea;
  --accent: #2c5d63;
  --accent-dark: #21474c;
  --error: #a63a2b;
  --line: #d8d2c4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.55;
}

.card {
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 2.5rem 2rem;
  max-width: 26rem;
  width: 100%;
}

h1 {
  font-size: 1.7rem;
  margin: 0 0 0.4rem;
  line-height: 1.2;
}

.lede { margin: 0 0 1.5rem; color: #4a5060; }

label {
  display: block;
  font-weight: bold;
  margin-bottom: 0.35rem;
}

input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  font: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
}

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

button {
  margin-top: 0.9rem;
  width: 100%;
  padding: 0.7rem 1rem;
  font: inherit;
  font-weight: bold;
  color: #fffdf8;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

button:hover { background: var(--accent-dark); }

button:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

button[disabled] { opacity: 0.6; cursor: wait; }

.message { min-height: 1.5em; margin: 1rem 0 0; }
.message.success { color: var(--accent-dark); font-weight: bold; }
.message.error { color: var(--error); font-weight: bold; }

@media (max-width: 400px) {
  .card { padding: 1.75rem 1.25rem; }
}