:root {
  /* default font size in browsers is 16px = 1em, we make
     things easier for us and make 10px our base size.
     We have 10/16 = 0.625 = 1rem as it is set on root element.
     So 1rem is now 10px throughout our stylesheet.*/
  font-size: 0.625em;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Montserrat", sans-serif;
  font-size: 1.6rem;
  margin: auto;
  max-width: 60rem;
  color: #000000;
  background: radial-gradient(
    circle,
    rgba(0, 255, 255, 100) 0%,
    rgba(10, 204, 191, 1) 89%,
    rgba(94, 191, 178, 1) 100%
  );
}

header {
  text-align: center;
  margin-top: 3rem;
}

div {
  height: 2rem;
  width: 2rem;
}

/* some utility classes */
.t-ucase {
  text-transform: uppercase;
}

.t-big {
  font-size: 1.5em;
}

.t-wide {
  letter-spacing: 1.5rem;
}

.t-close {
  letter-spacing: 1rem;
}

.fw-300 {
  font-weight: 300;
}

.fw-400 {
  font-weight: 400;
}

.score-display {
  font-size: 5rem;
  color: rgb(0,0,0);
}

.game-area {
  display: flex;
  justify-content: center;
}

.game {
  height: 0;
  width: 300px;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  width: 20rem;
  height: 40rem;
}

.previous-shape {
  width: 10rem;
  padding-left: 2rem;
  margin-top: -5rem;
}

.previous-grid {
  display: flex;
  flex-wrap: wrap;
  width: 8rem;
  height: 8rem;
}

.block {
  background-image: url(../images/blue_block.png);
}

.block2 {
  background-image: url(../images/purple_block.png);
}

.block3 {
  background-image: url(../images/green_block.png);
}

.block4 {
  background-image: url(../images/navy_block.png);
}

.block5 {
  background-image: url(../images/pink_block.png);
}

.end {
  background-color: #d8edea;
}

.button {
  position: relative;
  width: 22rem;
  height: 2.2rem;
  text-align: center;
  color: #fff;
  letter-spacing: 1px;
  text-decoration: none;
  line-height: 23px;
  font-size: 10px;
  display: block;
  margin: 30px;
  text-shadow: -1px -1px 0 #a84155;
  background: #d25068;
  border: 1px solid #d25068;
  width: 12rem;
  background-image: linear-gradient(to bottom, #f66c7b, #d25068);
  border-radius: 5px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.5) inset,
    0 -1px 0 rgba(255, 255, 255, 0.1) inset, 0 4px 0 #ad4257,
    0 4px 2px rgba(0, 0, 0, 0.5);
}

.button:before {
  background: #f00000;
  background-image: linear-gradient(#d0d0d0, #f0f0f0);
  border-radius: 5px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5) inset, 0 1px 0 #fff;
  position: absolute;
  content: "";
  left: -6px;
  right: -6px;
  top: -6px;
  bottom: -10px;
  z-index: -1;
}

.button:active {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.5) inset,
    0 -1px 0 rgba(255, 255, 255, 0.1) inset;
  top: 5px;
}

.button:active:before {
  top: -11px;
  bottom: -5px;
  content: "";
}

.button:hover {
  background: #f66c7b;
  background-image: linear-gradient(top, #d25068, #f66c7b);
}

.end {
  background-image: url(/Users/limit/development/Tetris/images/blue_block.png);
}

.display {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  text-align: center;
  margin-top: 1rem;
  width: 17.5rem;
  height: 25rem;
  background: #f0f0f0;
  background-image: linear-gradient(#d0d0d0, #f0f0f0);
  border-radius: 5px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5) inset, 0 1px 0 #fff;
  color: #85796b;
}

.score,
.lines-display {
  padding-top: 1rem;
  font-size: 1.2rem;
}

/*menu*/
.container {
  max-width: 600px;
  padding: 0 3rem;
  margin: auto;
  overflow: hidden;
}

.btn:hover {
  opacity: 0.7;
}

/* START of MENU STYLING */
.menu-wrap {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1;
}

.menu-wrap .toggler {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  width: 50px;
  height: 50px;
  opacity: 0;
  cursor: pointer;
}

.menu-wrap .hamburger {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: flex;
  width: 40px;
  height: 40px;
  padding: 1rem;
  background: rgba(13, 110, 139, 0.75);
  align-items: center;
  justify-content: center;
}

/* Hamburger Line */
.menu-wrap .hamburger > div {
  position: relative;
  display: flex;
  width: 150%;
  height: 2px;
  background: #fff;
  flex: none;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
}

/* Hamburger Lines - Top & Bottom */
.menu-wrap .hamburger > div:before,
.menu-wrap .hamburger > div:after {
  position: absolute;
  top: -7px;
  z-index: 1;
  width: 100%;
  height: 2px;
  background: inherit;
  content: "";
}

/* Moves Line Down */
.menu-wrap .hamburger > div:after {
  top: 7px;
}

/* Toggler Animation */
.menu-wrap .toggler:checked + .hamburger > div {
  transform: rotate(135deg);
}

/* Turns Lines Into X */
.menu-wrap .toggler:checked + .hamburger > div:before,
.menu-wrap .toggler:checked + .hamburger > div:after {
  top: 0;
  transform: rotate(90deg);
}

/* Rotate On Hover When Checked */
.menu-wrap .toggler:checked:hover + .hamburger > div {
  transform: rotate(225deg);
}

.menu {
  display: flex;
  justify-content: center;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(24, 39, 51, 0.85);
}

.menu-content {
  text-align: center;
  width: 600px;
  align-items: center;
  margin-top: 230px;
  justify-content: center;
  width: 200vw;
  height: 200vh;
  border-radius: 50%;
  transition: all 0.8s ease;
}

.rules {
  font-size: 12px;
  transition: color 0.4s ease;
}

.key {
  color: #f8de7e;
}

.close {
  border-radius: 5px;
  color: rgba(24, 39, 51, 0.85);
}