* {
  font-family: Arial, Helvetica, sans-serif;
}

.panel-content {
  display: flex;
}

.square {
  width: 100px;
  height: 100px;
  background: #05396b;
  font-size: 2.5em;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  margin: 2px;

  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -o-user-select: none;
  user-select: none;
}

#ticktacktoe table,
th,
td {
  border-collapse: collapse;
  border: none;
}

.table-top-labels,
.table-top-labels td {
  font-weight: bold;
  border: 0px;
  text-align: center;
  table-layout: none;
  padding: 20px 0px 10px 0px;
}

.table-side-labels {
  font-weight: bold;
  border: 0px;
  text-align: center;
  table-layout: none;
  padding-right: 10px;
}

/* chat */
#message-board {
  width: 100%;
  margin: 53px 20px 0px 20px;
  display: flex;
  flex-direction: column;
  align-content: stretch;
}

#chat-content {
  border: none;
  border-radius: 20px 0px 0px 0px;
  background-color: #389583;
  padding: 0 10px;
  height: 95%;
  overflow-y: scroll;
  max-height: 800px;
  color: #f2f2f2;
}

#chat-content p {
  margin-top: 25px;
}

#chat-form {
  display: flex;
}

#chat-input,
#chat-input:active,
#chat-input::placeholder {
  border: none;
  outline: none;
  border-radius: 0px 0px 0px 20px;
  background-color: #2c7667;
  padding-left: 20px;
  height: min(38px);
  font-size: 1em;
  width: 90%;
  padding-top: 3px;
  color: #f2f2f2;
}

#send-chat {
  width: 10%;
  background-color: #056162;
  font-size: 1.2em;
  border-radius: 0px 0px 20px 0px;
  border: none;
  outline: none;
  color: white;
  font-weight: bold;
}

#send-chat:hover {
  cursor: pointer;
  opacity: 90%;
}

/* Payoff table*/
.payoff-table {
  border-collapse: collapse;
  width: 44%;
  margin-left: 23px;
  margin-top: 20px;
  text-align: center;
}

.payoff-table td {
  border: none;
  padding: 8px;
}

.payoff-table tr:nth-child(even) {
  background-color: #f2f2f2;
  height: 40px;
}
.payoff-table tr:nth-child(1) {
  background-color: #5cdb94;
  font-weight: bold;
}

/* Buttons */

.btn {
  padding: 10px 15px;
  border-radius: 10px;
  border: none;
  background-color: #056162;
  color: #f2f2f2;
}

.btn:hover {
  cursor: pointer;
  opacity: 90%;
}