:root {
  --ink: #1b2a4a;
  --paper: #f7f5f2;
  --card: #ffffff;
  --accent: #c8532b;
  --accent-dark: #a53f1d;
  --error: #a02a2a;
  --ok: #1f6b3a;
  --border: #d8d2c8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: 4rem 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 28rem;
}

h1 {
  font-size: 1.75rem;
  margin: 0 0 0.5rem;
}

.lede {
  margin: 0 0 1.5rem;
  color: #4a5568;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

input[type="email"] {
  width: 100%;
  padding: 0.7rem 0.8rem;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
}

input[type="email"]:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button {
  margin-top: 1rem;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

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

button:disabled { opacity: 0.6; cursor: default; }

.message {
  margin: 0.8rem 0 0;
  font-size: 0.95rem;
}

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

.message--ok {
  color: var(--ok);
  font-weight: 600;
}

@media (max-width: 480px) {
  body { padding: 2rem 1rem; }
  .card { padding: 1.5rem; }
}