body {
  background: linear-gradient(-45deg, #086e1e, #087a4b, #0e919b, #0a468a);
  background-size: 300% 300%;
  animation: gradientBG 15s ease infinite;
  color: #e0e0e0;
  font-family: 'Orbitron', sans-serif;
  text-align: center;
  padding: 50px;
  min-height: 100vh;
}

@keyframes gradientBG {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.container {
  max-width: 700px;
  margin: auto;
}

.line, .countdown {
  margin: 20px 0;
  font-size: 1.5em;
  opacity: 0.2;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.line.visible, .countdown.visible {
  opacity: 1;
  transform: translateY(0);
}

.warning {
  color: red;
  display: inline-block;
  animation: shake 0.2s infinite alternate, pulse 0.2s infinite;
}

@keyframes shake {
  0%   { transform: translate(0, 0) rotate(0deg); }
  25%  { transform: translate(2px, -1px) rotate(1deg); }
  50%  { transform: translate(-2px, 2px) rotate(-1deg); }
  75%  { transform: translate(1px, -2px) rotate(1deg); }
  100% { transform: translate(0, 1px) rotate(0deg); }
}

@keyframes pulse {
  0%, 100% { scale: 1; }
  50%      { scale: 1.1; }
}

.hidden {
  visibility: hidden;
}

.visible {
  visibility: visible;
}

.countdown {
  margin-top: 40px;
  font-size: 1.2em;
  color: #d19c08;
}

.door {
  margin-top: 30px;
  padding: 15px 30px;
  font-size: 1.4em;
  color: #fff;
  background: linear-gradient(135deg, #ff0080, #00ffe5);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 0 15px #00ffe580;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  animation: doorPulse 2s infinite;
}

.door:hover {
  transform: scale(1.05);
  box-shadow: 0 0 25px #00ffe5;
}

@keyframes doorPulse {
  0%, 100% { box-shadow: 0 0 15px #00ffe580; }
  50%      { box-shadow: 0 0 30px #ff008080; }
}

.glitch {
  position: relative;
  color: #ff004f;
  font-weight: bold;
  font-size: 1.4em;
  animation: glitch-skew 1s infinite linear alternate-reverse;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  overflow: hidden;
  color: #00ffe5;
  clip: rect(0, 900px, 0, 0);
}

.glitch::before {
  animation: glitch-top 1s infinite linear alternate-reverse;
}

.glitch::after {
  animation: glitch-bottom 1.5s infinite linear alternate-reverse;
  color: #ff00ff;
}

@keyframes glitch-top {
  0% { clip: rect(0, 9999px, 0, 0); }
  5% { clip: rect(5px, 9999px, 15px, 0); left: 2px; }
  10% { clip: rect(10px, 9999px, 20px, 0); left: -2px; }
  15% { clip: rect(5px, 9999px, 15px, 0); left: 1px; }
  100% { clip: rect(0, 9999px, 0, 0); left: 0; }
}

@keyframes glitch-bottom {
  0% { clip: rect(0, 9999px, 0, 0); }
  5% { clip: rect(25px, 9999px, 35px, 0); left: -2px; }
  10% { clip: rect(30px, 9999px, 40px, 0); left: 2px; }
  15% { clip: rect(25px, 9999px, 35px, 0); left: -1px; }
  100% { clip: rect(0, 9999px, 0, 0); left: 0; }
}

@keyframes glitch-skew {
  0% { transform: skew(0deg); }
  50% { transform: skew(2deg); }
  100% { transform: skew(-2deg); }
}