.lock-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: lockFadeIn 0.4s ease;
}
@keyframes lockFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.lock-container {
  text-align: center;
  max-width: 360px;
  width: 90%;
}
.lock-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid rgba(255,255,255,0.3);
  object-fit: cover;
  margin-bottom: 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.lock-name {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0 0 4px;
}
.lock-msg {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  margin: 0 0 24px;
}
#lockForm {
  display: flex;
  flex-direction: column;
}
.lock-input {
  padding: 12px 16px;
  border: none;
  border-radius: 8px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 1rem;
  outline: none;
  transition: background 0.2s;
  box-sizing: border-box;
}
.lock-input::placeholder { color: rgba(255,255,255,0.35); }
.lock-input:focus { background: rgba(255,255,255,0.2); }
.lock-btn {
  margin-top: 12px;
  padding: 14px;
  border: none;
  border-radius: 10px;
  background: #4f7cff;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
}
.lock-btn:hover { background: #3a66e0; }
.lock-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.lock-error {
  color: #ff6b6b;
  font-size: 0.85rem;
  margin: 12px 0 0;
  min-height: 20px;
}
.lock-logout {
  display: inline-block;
  margin-top: 24px;
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.2s;
}
.lock-logout:hover { color: #ff6b6b; text-decoration: none; }