/* ==== Global Styles ==== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  height: 100vh;
  background-color: #000;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  position: relative;
}

/* ==== Animated Icon ==== */
span {
  background: url("https://cdn4.iconfinder.com/data/icons/general-office/91/General_Office_54-512.png") no-repeat center/cover;
  width: 8vw;
  height: 8vw;
  min-width: 50px;
  min-height: 50px;
  max-width: 100px;
  max-height: 100px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: floatUp 6s linear infinite;
}

/* ==== Keyframes Animation ==== */
@keyframes floatUp {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
    opacity: 1;
    filter: hue-rotate(0deg);
  }
  100% {
    transform: translate(-50%, -5000%) rotate(720deg);
    opacity: 0;
    filter: hue-rotate(360deg);
  }
}

/* ==== Watermark ==== */
.watermark {
  position: fixed;
  bottom: 10%;
  right: 10%;
  font-size: clamp(3rem, 10vw, 8rem);
  color: rgba(255, 255, 255, 0.05);
  transform: rotate(-20deg);
  pointer-events: none;
  user-select: none;
  z-index: 1;
}

/* ==== Footer ==== */
.footer {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  font-size: clamp(0.8rem, 2vw, 1rem);
  font-weight: 600;
  color: orangered;
  text-align: right;
  z-index: 2;
}

/* ==== Responsive Enhancements ==== */
@media (max-width: 768px) {
  span {
    width: 10vw;
    height: 10vw;
  }
}

@media (max-width: 480px) {
  span {
    width: 12vw;
    height: 12vw;
  }
}