body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #111;
  color: #eee;
  padding: 18px;
}

h1, h2, h3 { color: #f5c400; margin: 10px 0; }

.card {
  background: #222;
  padding: 16px;
  border-radius: 10px;
  margin-top: 14px;
  max-width: 560px;
}

label { display: block; margin-bottom: 12px; }

input, select, button {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  border-radius: 8px;
  border: 1px solid #444;
  background: #111;
  color: #eee;
  box-sizing: border-box;
}

button {
  background: #f5c400;
  border: none;
  cursor: pointer;
  color: #111;
  font-weight: 800;
}

button.sub { background: #555; color: #eee; }

.hidden { display: none; }
.muted { opacity: 0.85; font-size: 0.95em; }