style.css

@font-face {
  font-family: recharge;
  src: url("./assets/fonts/recharge/recharge\ bd.otf");
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  max-height: 100vh;
  width: 100%;
  background-color: #8bbef0;
}

.heading {
  text-align: center;
  margin: 10px 0;
  font-family: recharge;
  font-size: 3rem;
}

.container {
  width: 80%;
  height: calc(100vh - 120px);
  margin: 20px auto 0;
  padding: 35px;
  background-color: #0984e3;
  border-radius: 20px;
  box-shadow: 10px 10px 3px #2f3640;
}

.board-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.board-header form {
  flex-basis: 70%;
}

.board-header p {
  flex-basis: 25%;
  text-align: end;
  font-family: recharge;
  font-weight: bold;
  color: white;
}

input[type="text"] {
  width: 65%;
  padding: 10px 15px;
  border-radius: 20px;
  border: none;
  box-shadow: 3px 3px 3px #273c75;
  font-family: recharge;
}

input[type="text"]::placeholder {
  font-family: recharge;
}

input[type="text"]:focus {
  outline: 2px solid #353b48;
}

input[type="submit"] {
  padding: 10px 15px;
  border-radius: 20px;
  border: none;
  background-color: #fbc531;
  cursor: pointer;
  box-shadow: 3px 3px 5px #fbc531;
  font-weight: bold;
  transition: 1s;
  margin: 0 20px;
  font-family: recharge;
}

input[type="reset"] {
  padding: 10px 15px;
  border-radius: 20px;
  border: none;
  background-color: #2f3640;
  cursor: pointer;
  box-shadow: 3px 3px 3px #2f3640;
  font-weight: bold;
  color: white;
  transition: 1s;
  font-family: recharge;
}

input[type="submit"]:hover,
input[type="reset"]:hover {
  box-shadow: none;
}

.board-main {
  width: 100%;
  height: 350px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.board-play {
  width: 50%;
  padding: 30px;
  margin: 70px auto 30px;
  background-color: #273c75;
  border-radius: 20px;
}

.board-play .player-point {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: recharge;
  color: white;
}

.board-btn {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  margin-top: 55px;
}

.board-btn button {
  padding: 15px 30px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: 1s;
  font-family: recharge;
  background-color: #fbc531;
  box-shadow: 3px 3px 3px gray;
}

.board-btn .player-2 {
  background-color: #2d3436;
  color: white;
  box-shadow: 3px 3px 3px #2d3436;
}

.board-btn .player-2:disabled {
  color: gray;
}

.board-btn button:hover {
  box-shadow: none;
}

button:disabled {
  cursor: not-allowed;
}

.winning-msg,
.player-turn {
  text-align: center;
  font-family: recharge;
  color: white;
  font-size: 1.4rem;
  margin-top: 35px;
}

.winning-msg {
  display: none;
}

/* Small devices such as large phones (640px and up) */
@media only screen and (max-width: 640px) {
  .heading {
    font-size: 1.6rem;
  }

  .container {
    width: 90%;
    padding: 35px 15px;
  }

  .board-header {
    flex-direction: column;
    gap: 25px;
  }

  .board-header form,
  .board-header p {
    flex-basis: 100%;
  }

  .board-header p {
    margin-top: 30px;
    font-size: 1.3rem;
  }

  input[type="text"] {
    width: 100%;
    margin-bottom: 30px;
  }

  input[type="submit"] {
    margin-right: 30%;
  }

  .board-play {
    width: 100%;
  }

  .board-play .player-point {
    font-size: 0.9rem;
  }

  .board-main {
    height: 250px;
  }

  .player-turn {
    font-size: 1.3rem;
  }
}

/* Medium devices such as tablets (768px and up) */
@media only screen and (max-width: 968px) {
  .container {
    padding: 20px;
    width: 95%;
  }
  .board-header {
    flex-direction: column;
    align-items: start;
    gap: 80px;
  }

  .board-header form {
    width: 100%;
  }

  .board-header p {
    width: 100%;
    text-align: center;
  }
}