body {
  font-family: Arial, sans-serif;
  max-width: 850px;
  margin: 0 auto;
  padding: 20px;
  background: #f4f4f4;
  color: #222;
}

.center-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 90vh;
}

.topbar {
  background: white;
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid #ddd;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card, .post, .comment {
  background: white;
  border: 1px solid #ddd;
  padding: 18px;
  margin: 12px 0;
}

.login-card {
  width: 360px;
  text-align: center;
}

.post {
  cursor: pointer;
}

.post:hover {
  background: #eee;
}

input, textarea {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  box-sizing: border-box;
}

textarea {
  height: 120px;
}

button, .btn {
  display: inline-block;
  padding: 10px 14px;
  margin: 8px 4px 8px 0;
  background: #222;
  color: white;
  border: none;
  text-decoration: none;
  cursor: pointer;
}

button:hover, .btn:hover {
  background: #444;
}

small, .meta {
  color: #666;
  word-break: break-all;
}

.qr {
  margin: 10px 0;
}

.empty {
  background: white;
  padding: 20px;
  border: 1px solid #ddd;
}

.settings {
  position: relative;
}

.settings-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  padding: 0;
  font-size: 18px;
}

.menu {
  position: absolute;
  right: 0;
  top: 52px;
  background: white;
  border: 1px solid #ddd;
  padding: 12px;
  width: 190px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.15);
  z-index: 10;
}

.menu p {
  margin: 0 0 6px;
}

.menu small {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
}

.hidden {
  display: none;
}

.policy-box {
  text-align: left;
  background: #fafafa;
  border: 1px solid #ddd;
  padding: 10px;
  font-size: 13px;
  margin: 12px 0;
}