* {
  margin: 0;
  padding: 0;
}
:root {
  --c-hour: #00dbfe;
  --c-min: white;
  --c-sec: #0c7196;
  --c-gradient-1: #005c83;
  --c-gradient-2: #013c6a;
  --c-time: #e2ffff;
  --c-line: #2f97b6;
  --c-weekday: #2895b2;
  --c-ampm: #2c6d8e;
}
.white-mode {
  --c-gradient-1: white;
  --c-gradient-2: white;
  --c-hour: #0aa5d7;
  --c-min: #1bbec7;
  --c-sec: #d5e0e3;
  --c-time: #08364d;
  --c-line: #cdd4d4;
  --c-weekday: #90dee9;
  --c-ampm: #becad1;
}
.container {
  background-image: radial-gradient(var(--c-gradient-1), var(--c-gradient-2));
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.timezone {
  margin-bottom: 20px;
  padding: 3px 5px;
  border-radius: 10px;
}
.pointer {
  position: absolute;
  top: 50%;
  transform: rotate(90deg);
  transition: 0.5s;
}
.clock {
  position: relative;
  width: 300px;
  height: 300px;
}
.hours__circle {
  height: 100%;
  transform: rotate(270deg);
}
.hours__circle--color {
  width: 100%;
  height: 100%;
  fill: transparent;
  stroke-width: 5;
  stroke: url(#bluegradient);
  stroke-dasharray: 848;
  filter: drop-shadow(0 0 5px var(--c-hour));
}
.hours__circle--line {
  stroke: var(--c-line);
  stroke-width: 2;
}
.hours {
  height: 5px;
  width: 45%;
  background: var(--c-hour);
  transform-origin: right center;
  left: 5%;
  border-radius: 2px;
  filter: drop-shadow(0 0 5px var(--c-hour));
}
.minute {
  height: 4px;
  width: 40%;
  background: var(--c-min);
  transform-origin: right center;
  left: 10%;
  border-radius: 2px;
}
.second {
  height: 3px;
  width: 50%;
  background: var(--c-sec);
  transform-origin: right center;
  left: 0;
  border-radius: 2px;
}
.weekday {
  color: var(--c-weekday);
  font-size: 40px;
  margin-top: 20px;
  font-weight: bold;
  margin-bottom: 2px;
}
.time {
  text-align: center;
  color: var(--c-time);
  font-size: 40px;
  margin-bottom: 2px;
}
.ampm {
  color: var(--c-ampm);
  font-size: 30px;
}
.change-mode {
  border: none;
  cursor: pointer;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: white;
  margin-top: 20px;
  box-shadow: 0 0 10px var(--c-hour);
  color: var(--c-gradient-1);
  font-weight: bold;
}
.change-mode:hover {
  background-color: var(--c-hour);
}
.change-mode:active {
  position: relative;
  top: 2px;
}
.change-mode--blue {
  display: none;
}
.white-mode .hours__circle--color {
  stroke: url(#whitegradient);
}
.white-mode .change-mode--white {
  display: none;
}
.white-mode .change-mode--blue {
  display: inline;
  color: var(--c-min);
}
.white-mode .change-mode:hover .change-mode--blue {
  color: var(--c-time);
}