:root {
  --ink: #22333b;
  --paper: #faf7f2;
  --card: #ffffff;
  --accent: #b6543a;
  --accent-dark: #94412c;
  --muted: #5c6b73;
  --ok: #2e6e4e;
  --line: #dcd4c8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.55;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 40px;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 2px 10px rgba(34, 51, 59, 0.07);
}

h1 {
  font-size: 1.9rem;
  margin: 0 0 8px;
  line-height: 1.2;
}

h2 { font-size: 1.3rem; margin: 32px 0 8px; }

.lead { color: var(--muted); margin: 0 0 28px; }

label {
  display: block;
  font-weight: bold;
  margin-bottom: 6px;
}

input[type="email"] {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
}

input[type="email"]:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

button {
  margin-top: 16px;
  width: 100%;
  padding: 12px;
  font: inherit;
  font-weight: bold;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

button:hover { background: var(--accent-dark); }
button[disabled] { opacity: 0.6; cursor: wait; }

.msg { min-height: 1.4em; margin: 14px 0 0; font-size: 0.95rem; }
.msg.ok { color: var(--ok); }
.msg.info { color: var(--muted); }
.msg.err { color: var(--accent-dark); font-weight: bold; }

.count { color: var(--muted); margin: 0 0 10px; }

.sub-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 240px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.sub-list li {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
  word-break: break-all;
}

.sub-list li:last-child { border-bottom: none; }
.sub-list li time { color: var(--muted); font-size: 0.85rem; }

@media (max-width: 480px) {
  .card { padding: 24px; }
}