body {
  margin: 0;
  background: #0f1028;
  font-family: 'Segoe UI', sans-serif;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  width: 100%;
  padding: 270px 270px 20px 40px;
  position: relative;
  box-sizing: border-box;
  height: 90px;
}

.header-text {
  font-size: 3rem;
  font-family: 'Orbitron', sans-serif;
  color: #fff;
  text-shadow: 0 1px 0 #999,
               0 2px 2px rgba(0, 0, 0, 0.7),
               0 0 10px rgba(0, 255, 255, 0.4);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  user-select: none;
}

.digital-clock {
  font-family: 'Orbitron', monospace;
  font-size: 1.8rem;
  color: #6ef;
  background: radial-gradient(circle at top left, #444, #222);
  border: 3px solid #e0e0e0;
  border-radius: 12px;
  padding: 10px 20px;
  width: 160px;
  text-align: center;
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.5),
              0 4px 12px rgba(0, 0, 0, 0.7),
              0 0 20px rgba(255, 255, 255, 0.05);
  user-select: none;
  position: absolute;
  top: 50%;
  right: 180px;
  transform: translateY(-50%);
}

.timezone-box {
  font-family: 'Orbitron', monospace;
  font-size: 1.8rem;
  color: #6ef;
  background: radial-gradient(circle at top left, #444, #222);
  border: 3px solid #e0e0e0;
  border-radius: 12px;
  padding: 10px 20px;
  text-align: center;
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.5),
              0 4px 12px rgba(0, 0, 0, 0.7),
              0 0 20px rgba(255, 255, 255, 0.05);
  user-select: none;
  position: absolute;
  top: 50%;
  left: 180px;
  transform: translateY(-50%);
  width: auto;
}

.timezone-box select {
  background: none;
  color: #6ef;
  border: none;
  outline: none;
  width: 100%;
  min-width: 0;
  font-family: 'Orbitron', monospace;
  font-size: 1.8rem;
  cursor: pointer;
}

.timezone-box select option {
  background: #222;
  color: #6ef;
  font-size: 1.6rem;
  font-family: 'Orbitron', monospace;
  cursor: pointer;
}

.timezone-box select option:hover {
  background-color: #0f1028;
  color: #fff;
  cursor: pointer;
}

.timezone-box select option:checked {
  background-color: #0c0c1e;
  color: #fff;
  cursor: pointer;
}

main {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 30px;
}

.clock {
  position: relative;
  width: 650px;
  height: 650px;
  border: 18px solid #e0e0e0;
  border-radius: 50%;
  background: radial-gradient(circle at center, #444, #222);
  box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.6),
              0 10px 25px rgba(0, 0, 0, 0.8),
              0 0 30px rgba(255, 255, 255, 0.05);
}

.hand {
  position: absolute;
  bottom: 50%;
  left: 50%;
  transform-origin: bottom;
  border-radius: 6px;
  z-index: 10;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.8);
}

.hour {
  width: 8px;
  height: 24%;
  background: #fff;
}

.minute {
  width: 5px;
  height: 32%;
  background: #00ccff;
}

.second {
  width: 3px;
  height: 39%;
  background: red;
}

.center-dot {
  position: absolute;
  width: 20px;
  height: 20px;
  background: #111;
  border: 4px solid #fff;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 15;
  box-shadow: 0 0 8px #000;
}

.marks,
.numbers {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

.number {
  position: absolute;
  font-size: 1.8rem;
  font-family: 'Orbitron', monospace;
  color: #6ef;
  text-shadow: 0 0 4px rgba(0, 255, 255, 0.4),
               0 0 10px rgba(0, 255, 255, 0.2);
  user-select: none;
  transform: translate(-50%, -50%);
}

.date-block {
  margin-top: 100px;
  text-align: center;
}

.date-line {
  font-size: 3rem;
  font-family: 'Orbitron', sans-serif;
  color: #fff;
  text-shadow: 0 1px 0 #999,
               0 2px 2px rgba(0, 0, 0, 0.7),
               0 0 10px rgba(0, 255, 255, 0.4);
  user-select: none;
  margin-top: 10px;
}