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

body {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  min-height: 100vh;
  text-align: center;
  background: #1abc9c;
  background-image: linear-gradient(to top left, #9b59b6, #000000);
  font-family: arial;
  position: relative;
  text-align: center;
}

/* HEADER */
header {
  color: whitesmoke;
  letter-spacing: 0.4em;
  font-size: 22px;
  padding: 10px 5px;
}
@media only screen and (min-width: 768px) {
  header {
    font-size: 28px;
  }
}
@media only screen and (min-width: 1024px) {
  header {
    font-size: 32px;
    padding: 10px;
  }
}

/* main SECTION */
.main {
  background: black;
  width: 250px;
  height: 345px;
  box-shadow: 3px 3px 3px 1px rgba(0,0,0,0.4);
  margin: auto;
}
@media only screen and (min-width: 768px) {
  .main {
    width: 310px;
    height: 285px;
  }
}
@media only screen and (min-width: 1024px) {
  .main {
    width: 410px;
    height: 375px;
  }
}

.box {
  background: #9b59b6;
  background-image: linear-gradient(to top left, #9b59b6, #1abc9c);
  background-size: 250%;
  width: 50px;
  height: 50px;
  float: left;
  margin: 10px 0 0 10px;
  cursor: pointer;
}
@media only screen and (min-width: 1024px) {
  .box {
    width: 70px;
    height: 70px;
  }
}
.play:hover {
  background: #2ecc71;
  background-image: linear-gradient(to top left, #9b59b6, #1abc9c);
  background-size: 100%;
}

img {
  width: 100%;
  display: block;
}

/* STATUS bar */
#state {
  background: #9b59b6;
  background-image: linear-gradient(to top left, #9b59b6, #1abc9c);
  background-size: 250%;
  width: 230px;
  line-height: 25px;
  float: left;
  margin: 10px 0 0 10px;
  padding: 0 10px;
  color: whitesmoke;
  font-size: 16px;
}
@media only screen and (min-width: 768px) {
  #state {
    width: 290px;
  }
}
@media only screen and (min-width: 1024px) {
  #state {
    width: 390px;
    line-height: 35px;
  }
}

#time {
  float: left;
}
#score {
  float: right;
}

/* FOOTER */
footer p {
  color: whitesmoke;
  padding: 5px;
  font-size: 14px;
  clear: both;
}

footer p a {
  color: #333;
  text-decoration: none;
}
footer p a:hover {
  color: whitesmoke;
  text-decoration: underline;
}

.hidden {
  display: none;
}
.show {
  display: block;
}
.outlined {
  outline: solid 2px #34495e;
}

/* PRE modal window */
#pre {
  position: absolute;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  text-align: center;
}
#themes {
  margin: auto;
  padding: 25px 20px;
  width: 260px;
  background: whitesmoke;
  color: #36a7a2;
  font-weight: bold;
  letter-spacing: .05em;
  border-radius: 2px;
}

#themes p {
  margin: 10px auto;
  padding: 5px 40px;
  border: solid #36a7a2 1px;
  border-radius: 2px;
  background: whitesmoke;
  color: #36a7a2;
  cursor: pointer;
  font-weight: normal;
}
#themes p:hover {
  background-image: linear-gradient(to top left, #9b59b6, #1abc9c);
  background-size: 250%;
  color: whitesmoke;
}

/* POST modal window */
#post {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  display: none;
}

#post > div {
  width: 300px;
  padding: 20px 0 40px;
  background: whitesmoke;
  color: #36a7a2;
  border-radius: 2px;
}

#post p:first-child, #post #final {
  font-weight: bold;
  letter-spacing: 0.1em;
  margin: auto;
  padding: 10px 20px;
}

#post #again a {
  color: #36a7a2;
  text-decoration: none;
  margin: auto;
  padding: 10px 20px;
  width: 160px;
  border: solid #36a7a2 1px;
  border-radius: 2px;
}
#post #again a:hover {
  background: #27ae60;
  background-image: linear-gradient(to top left, #9b59b6, #1abc9c);
  background-size: 250%;
  color: whitesmoke;
  cursor: pointer;
}