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

:root {
  --font-w: 700;
  --font-fam: "Red Hat Text", sans-serif;
  --primary-1: hsl(237, 18%, 59%);
  --primary-2: hsl(345, 95%, 68%);
  --neutral-1: hsl(0, 0%, 100%);
  --neutral-2: hsl(236, 21%, 26%);
  --neutral-3: hsl(235, 16%, 14%);
  --neutral-4: hsl(234, 17%, 12%); }

html {
  font-size: 62.5%; }

body {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-fam);
  font-size: 1.4rem;
  background-color: var(--neutral-3);
  z-index: -1; }

main {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 98vh;
  width: 100%;
  background-image: url(../images/pattern-hills.svg), url(../images/bg-stars.svg);
  background-position: bottom;
  background-repeat: no-repeat;
  background-size: contain, cover; }
  main .container {
    display: flex;
    flex-direction: column;
    align-items: center; }
    main .container h1 {
      text-transform: uppercase;
      font-weight: var(--font-w);
      color: var(--neutral-1);
      letter-spacing: 0.8rem;
      margin: 5rem 0 2rem 0; }
    main .container .countdown {
      margin: 15rem 0;
      display: flex;
      list-style: none; }

.time-section {
  font-size: 3rem;
  text-align: center; }
  .time-section .time-group {
    display: flex; }
    .time-section .time-group .time-segment {
      display: block;
      letter-spacing: 1rem;
      font-weight: var(--font-w);
      font-size: var(--timeSegment-font-s);
      width: var(--timeSegment-width);
      color: var(--primary-2); }
  .time-section #txt {
    color: var(--primary-1);
    padding: var(--subTitle-pad);
    font-size: var(--subTitle-font-s);
    text-transform: uppercase;
    letter-spacing: 0.4rem; }

.segment-display {
  position: relative;
  height: 100%; }
  .segment-display .segment-display__top {
    line-height: var(--lineHeight-top);
    height: 50%;
    width: 100%;
    text-align: center;
    overflow: hidden;
    background-color: #404363;
    border-top-left-radius: 1rem;
    border-top-right-radius: 1rem;
    border-bottom: 2px solid var(--neutral-4);
    position: relative; }
  .segment-display .segment-display__bottom {
    line-height: 0;
    height: 50%;
    width: 100%;
    text-align: center;
    overflow: hidden;
    background-color: #343650;
    box-shadow: 0rem 0.8rem 0.4rem 0.4rem #191a24;
    border-top: 1px solid var(--neutral-4);
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;
    position: relative; }

.segment-display__top::before,
.segment-display__top::after,
.segment-display__bottom::before,
.segment-display__bottom::after {
  position: absolute;
  content: " ";
  height: var(--notch-height);
  aspect-ratio: 1;
  background-color: var(--neutral-4); }

.segment-display__top::before {
  bottom: 0%;
  left: 0%;
  border-radius: 0 100% 0 0; }

.segment-display__top::after {
  right: 0;
  bottom: 0%;
  border-radius: 100% 0 0 0; }

.segment-display__bottom::before {
  top: 0;
  left: 0;
  border-radius: 0 0 100% 0; }

.segment-display__bottom::after {
  right: 0;
  top: 0;
  border-radius: 0 0 0 100%; }

.segment-overlay {
  position: absolute;
  top: 0;
  perspective: 40rem;
  height: 100%;
  width: var(--timeSegment-width); }
  .segment-overlay .segment-overlay__top {
    line-height: var(--lineHeight-top);
    height: 50%;
    width: 100%;
    text-align: center;
    overflow: hidden;
    background-color: #404363;
    border-top-left-radius: 1rem;
    border-top-right-radius: 1rem;
    border-bottom: 1px solid var(--neutral-4);
    top: 0;
    transform-origin: bottom;
    position: relative; }
  .segment-overlay .segment-overlay__bottom {
    line-height: 0;
    height: 50%;
    width: 100%;
    text-align: center;
    overflow: hidden;
    background-color: #343650;
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;
    border-top: 1px solid var(--neutral-4);
    bottom: 0;
    transform-origin: top;
    position: relative; }

.segment-overlay__top::before,
.segment-overlay__top::after,
.segment-overlay__bottom::before,
.segment-overlay__bottom::after {
  position: absolute;
  content: " ";
  height: var(--notch-height);
  aspect-ratio: 1;
  background-color: var(--neutral-4); }

.segment-overlay__top::before {
  bottom: 0%;
  left: 0%;
  border-radius: 0 100% 0 0; }

.segment-overlay__top::after {
  right: 0%;
  bottom: 00%;
  border-radius: 100% 0 0 0; }

.segment-overlay__bottom::before {
  left: 0;
  top: 0%;
  border-radius: 0 0 100% 0; }

.segment-overlay__bottom::after {
  top: 0%;
  right: 0;
  border-radius: 0 0 0 100%; }

.segment-overlay.flip .segment-overlay__top {
  animation: flip-top 0.8s linear; }

.segment-overlay.flip .segment-overlay__bottom {
  animation: flip-bottom 0.8s linear; }

@keyframes flip-top {
  0% {
    transform: rotateX(0deg); }
  50%,
  100% {
    transform: rotateX(-90deg); } }

@keyframes flip-bottom {
  0%,
  50% {
    transform: rotateX(90deg); }
  100% {
    transform: rotateX(0deg); } }

footer {
  background-color: var(--neutral-4);
  height: 100%;
  width: 100%; }
  footer .attribution {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
 Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue",
 sans-serif;
    font-size: 11px;
    text-align: center;
    color: var(--primary-1); }
    footer .attribution a {
      color: var(--primary-1); }

@media only screen and (min-width: 721px) {
  main h1 br {
    display: none; }
  main .countdown {
    gap: 4rem; }
  :root {
    --timeSegment-font-s: 12rem;
    --timeSegment-width: 24rem;
    --subTitle-pad: 4rem;
    --lineHeight-top: 2;
    --notch-height: 1.2rem;
    --subTitle-font-s: 1.2rem; } }

@media only screen and (max-width: 720px) {
  main h1 {
    text-align: center; }
    main h1 br {
      display: inline-block; }
  main .countdown {
    gap: 1.4rem; }
  :root {
    --timeSegment-font-s: 6rem;
    --timeSegment-width: 12rem;
    --subTitle-pad: 2rem;
    --lineHeight-top: 1.8;
    --notch-height: 1rem;
    --subTitle-font-s: 1rem; } }

.social-icon {
  display: flex;
  gap: 2rem; }
  .social-icon .my-icons:hover {
    cursor: pointer;
    fill: var(--primary-2); }