* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: #111318;
  color: #f2f2f2;
}

.centered-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-box {
  background: #1b1e26;
  padding: 2.5rem;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: min(90vw, 340px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.auth-box h1 {
  margin: 0 0 0.5rem;
  font-size: 1.3rem;
  text-align: center;
}

input, select, textarea {
  background: #0f1117;
  border: 1px solid #2c2f3a;
  color: #f2f2f2;
  padding: 0.7rem 0.9rem;
  border-radius: 8px;
  font-size: 1rem;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 0.7rem 1.1rem;
  font-size: 1rem;
  font-weight: 600;
  background: #4f7cff;
  color: white;
  transition: filter 0.15s;
}

button:hover { filter: brightness(1.1); }

.btn-ghost {
  background: transparent;
  border: 1px solid #3a3d4a;
  color: #ccc;
}

.error {
  color: #ff5c5c;
  font-size: 0.9rem;
  margin: 0;
}

.muted {
  color: #888;
}