.clock {
  --_ow: clamp(5rem, 60vw, 40rem);
  --_w: 88cqi;
  --_r: calc((var(--_w) - var(--_sz)) / 2);
  --_sz: 12cqi;

  background: #222;
  block-size: var(--_ow);
  border-radius: 24%;
  container-type: inline-size;
  display: grid;
  font-family: ui-sans-serif, system-ui, sans-serif;
  inline-size: var(--_ow);
  margin-inline: auto;
  place-content: center;
}

.clock-face {
  aspect-ratio: 1;
  background: var(--_bgc, #fff);
  border-radius: 50%;
  block-size: var(--_w);
  font-size: 6cqi;
  font-weight: 700;
  list-style-type: none;
  inline-size: var(--_w);
  padding: unset;
  position: relative;
}

.clock-face time {
  --_x: calc(var(--_r) + (var(--_r) * cos(var(--_d))));
  --_y: calc(var(--_r) + (var(--_r) * sin(var(--_d))));
  display: grid;
  height: var(--_sz);
  left: var(--_x);
  place-content: center;
  position: absolute;
  top: var(--_y);
  width: var(--_sz);
}

.clock-face time:nth-child(1) {
  --_d: 270deg;
}
.clock-face time:nth-child(2) {
  --_d: 300deg;
}
.clock-face time:nth-child(3) {
  --_d: 330deg;
}
.clock-face time:nth-child(4) {
  --_d: 0deg;
}
.clock-face time:nth-child(5) {
  --_d: 30deg;
}
.clock-face time:nth-child(6) {
  --_d: 60deg;
}
.clock-face time:nth-child(7) {
  --_d: 90deg;
}
.clock-face time:nth-child(8) {
  --_d: 120deg;
}
.clock-face time:nth-child(9) {
  --_d: 150deg;
}
.clock-face time:nth-child(10) {
  --_d: 180deg;
}
.clock-face time:nth-child(11) {
  --_d: 210deg;
}
.clock-face time:nth-child(12) {
  --_d: 240deg;
}

.arm {
  background-color: var(--_abg);
  border-radius: calc(var(--_aw) * 2);
  display: block;
  height: var(--_ah);
  left: calc((var(--_w) - var(--_aw)) / 2);
  position: absolute;
  top: calc((var(--_w) / 2) - var(--_ah));
  transform: rotate(0deg);
  transform-origin: bottom;
  width: var(--_aw);
}
.seconds {
  --_abg: rgb(255, 140, 5);
  --_ah: 40cqi;
  --_aw: 1cqi;
  animation: turn 60s linear infinite;
  animation-delay: var(--_ds, 0ms);
}

.minutes {
  --_abg: #333;
  --_ah: 35cqi;
  --_aw: 2.5cqi;
  animation: turn 3600s steps(60, end) infinite;
  animation-delay: var(--_dm, 0ms);
}

.hours {
  --_abg: #333;
  --_ah: 30cqi;
  --_aw: 2.5cqi;
  animation: turn 43200s linear infinite; /* 60 * 60 * 12 */
  animation-delay: var(--_dh, 0ms);
  position: relative;
}

.hours::before {
  background-color: #fff;
  border: 1cqi solid #333;
  border-radius: 50%;
  content: "";
  display: block;
  height: 4cqi;
  position: absolute;
  bottom: -3cqi;
  left: -1.75cqi;
  width: 4cqi;
}

html {
  display: grid;
  height: 100%;
}
body {
  background-image: linear-gradient(
    175deg,
    rgb(128, 202, 190),
    rgb(85, 170, 160),
    rgb(60, 139, 139)
  );
  padding-block-start: 2em;
}
p {
  display: none;
  font-family: ui-sans-serif, system-ui, sans-serif;
  text-align: center;
}

@keyframes turn {
  to {
    transform: rotate(1turn);
  }
}

@supports not (left: calc(1px * cos(45deg))) {
  time {
    left: 50% !important;
    top: 50% !important;
    transform: translate(-50%, -50%) rotate(var(--_d)) translate(var(--_r))
      rotate(calc(-1 * var(--_d)));
  }
  p {
    display: block;
  }
}