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

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  color: #fff;
}

.container {
  width: 100%;
  max-width: 800px;
  padding: 20px;
}

.clock-container {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border-radius: 25px;
  padding: 40px;
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 0 20px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.clock-container::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(120, 119, 198, 0.1) 0%,
    transparent 70%
  );
  animation: pulse 8s infinite alternate;
}

@keyframes pulse {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.header {
  font-family: "Orbitron", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 30px;
  color: #64dfdf;
  text-shadow: 0 0 10px rgba(100, 223, 223, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
}

.header i {
  font-size: 2rem;
  animation: spin 10s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.greeting {
  font-size: 2.5rem;
  color: #ffd166;
  margin-bottom: 20px;
  font-weight: 500;
  text-shadow: 0 0 15px rgba(255, 209, 102, 0.4);
  letter-spacing: 1px;
}

.time-display {
  font-family: "Orbitron", sans-serif;
  font-size: 5.5rem;
  font-weight: 700;
  color: #06d6a0;
  margin: 30px 0;
  text-shadow: 0 0 20px rgba(6, 214, 160, 0.7);
  letter-spacing: 3px;
  background: rgba(0, 0, 0, 0.3);
  padding: 20px;
  border-radius: 15px;
  border: 2px solid rgba(6, 214, 160, 0.3);
  position: relative;
  overflow: hidden;
}

.time-display::after {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(
    45deg,
    transparent,
    rgba(6, 214, 160, 0.2),
    transparent
  );
  z-index: -1;
  animation: shine 3s infinite;
}

@keyframes shine {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.date-display {
  font-size: 1.8rem;
  color: #a9def9;
  margin: 25px 0 40px;
  padding: 15px 30px;
  background: rgba(169, 222, 249, 0.1);
  border-radius: 12px;
  display: inline-block;
  font-weight: 400;
  border: 1px solid rgba(169, 222, 249, 0.2);
}

.footer {
  font-size: 1rem;
  color: #cdb4db;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(205, 180, 219, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.footer i {
  color: #ff6b6b;
  animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .clock-container {
    padding: 30px 20px;
  }

  .header {
    font-size: 1.5rem;
  }

  .greeting {
    font-size: 2rem;
  }

  .time-display {
    font-size: 3.5rem;
    padding: 15px;
    letter-spacing: 2px;
  }

  .date-display {
    font-size: 1.4rem;
    padding: 12px 20px;
  }
}

@media (max-width: 480px) {
  .clock-container {
    padding: 25px 15px;
  }

  .time-display {
    font-size: 2.8rem;
    letter-spacing: 1px;
  }

  .date-display {
    font-size: 1.2rem;
  }

  .greeting {
    font-size: 1.8rem;
  }
}

/* Sekunder dan milidetik (opsional untuk efek tambahan) */
.separator {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}