body {
  background-color: #1e1e1e;
  color: #f0f0f0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0;
  padding: 12px; /* smaller padding for mobile */
  min-height: 100vh;
  text-align: center;
}

header { margin-bottom: 16px; }
header img { max-width: 100px; display:block; margin: 0 auto; } /* shrink logo slightly */
h1 { color: #ffcc00; margin: 10px 0 16px; font-size: 1.5rem; }

.center-card {
  background: #2a2a2a;
  border-radius: 12px;
  padding: 16px;
  width: 100%;
  max-width: 480px;
  margin-bottom: 14px;
  box-sizing: border-box; /* prevents overflow on small screens */
}

input {
  margin: 6px 0;
  padding: 8px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  text-align: center;
  width: 100%; /* full width on mobile */
  max-width: 200px;
  background: #1f1f1f;
  color: #fff;
  box-sizing: border-box;
}

button, .btn {
  padding: 10px 16px;
  margin: 6px;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  background-color: #ffcc00;
  color: #1e1e1e;
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
  width: auto;
  max-width: 100%;
}

#logsContainer {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.logBox {
  flex: 1;
  min-width: 160px; /* smaller minimum so both fit side-by-side on mobile */
  background: #232323;
  border-radius: 10px;
  padding: 2px;
  text-align: left;
}

.logBox h3 {
  margin-top: 0;
  color: #ffcc00;
  font-size: 1rem;
  text-align: center;
}

#logP1 p, #logP2 p {
  background: #1f1f1f;
  padding: 8px;
  border-radius: 6px;
  margin: 6px 0;
  font-size: 0.9rem;
}

.btn.small { 
  padding: 6px 10px; 
  font-size: 0.8rem; 
  background:#444; 
  color:#fff; 
  border-radius:6px; 
}

button:hover, .btn:hover { opacity: 0.95; }

.hidden { display: none; }
.result { margin-top: 10px; font-weight: bold; font-size: 0.95rem; color: #66ff99; }
.error { color: #ff6666; font-size: 0.85rem; margin: 6px 0; }
#onlineHistory p, #history p { 
  background: #232323; 
  padding: 8px; 
  border-radius: 6px; 
  margin: 6px 0; 
  text-align:left; 
  color:#fff; 
  font-size: 0.9rem;
}
.link { color: #ddd; text-decoration: underline; font-size:0.85rem; }

/* Mobile-specific adjustments */
@media (max-width: 550px) {
  h1 { font-size: 1.25rem; }
  header img { max-width: 80px; }
  .center-card { padding: 12px; }
  #logsContainer { flex-direction: column; }
  .logBox { width: 100%; min-width: 90%; }
}