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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

/* Animated background grid */
.grid-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.1) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
  z-index: 1;
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

/* Floating geometric shapes */
.floating-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  animation: floatShape 8s ease-in-out infinite;
}

.shape:nth-child(1) {
  width: 100px;
  height: 100px;
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.shape:nth-child(2) {
  width: 60px;
  height: 60px;
  top: 20%;
  right: 15%;
  animation-delay: 2s;
  border-radius: 10px;
}

.shape:nth-child(3) {
  width: 80px;
  height: 80px;
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
  border-radius: 0;
}

@keyframes floatShape {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

/* Main container */
.container {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
  text-align: center;
}

/* Vector illustration container */
.illustration-container {
  margin-bottom: 3rem;
  animation: fadeInScale 1s ease-out;
}

@keyframes fadeInScale {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* Vector illustration SVG */
.upgrade-illustration {
  width: 300px;
  height: 300px;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

/* Main heading */
.main-heading {
  font-size: 3.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  letter-spacing: -1px;
  animation: slideInUp 1s ease-out 0.5s both;
}

.gradient-text {
  background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 3s ease-in-out infinite;
}

@keyframes gradientShift {
  0%,
  100% {
    filter: hue-rotate(0deg);
  }
  50% {
    filter: hue-rotate(90deg);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Subtitle */
.subtitle {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  font-weight: 300;
  animation: slideInUp 1s ease-out 1s both;
}

@keyframes progressLoad {
  0% {
    width: 0%;
  }
  50% {
    width: 85%;
  }
  100% {
    width: 100%;
  }
}

/* Status text */
.status-text {
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  font-style: italic;
}

/* CTA Button */
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  margin: 2rem 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  animation: slideInUp 1s ease-out 2s both;
}

.cta-button:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.cta-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50px;
  background: linear-gradient(
    45deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.cta-button:hover::before {
  transform: translateX(100%);
}

/* Music control bar */
.music-bar {
  /* position: fixed; */
  bottom: 0;
  left: 0;
  right: 0;
  /* background: rgba(0, 0, 0, 0.9); */
  backdrop-filter: blur(20px);
  padding: 15px 25px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 1000;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.music-info {
  display: flex;
  align-items: center;
  color: white;
}

.music-visualizer {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-right: 15px;
}

.bar {
  width: 3px;
  background: #4ecdc4;
  border-radius: 3px;
  animation: visualizer 1s ease-in-out infinite;
}

.bar:nth-child(1) {
  height: 20px;
  animation-delay: 0.1s;
}
.bar:nth-child(2) {
  height: 15px;
  animation-delay: 0.2s;
}
.bar:nth-child(3) {
  height: 25px;
  animation-delay: 0.3s;
}
.bar:nth-child(4) {
  height: 18px;
  animation-delay: 0.4s;
}
.bar:nth-child(5) {
  height: 22px;
  animation-delay: 0.5s;
}

@keyframes visualizer {
  0%,
  100% {
    transform: scaleY(1);
  }
  50% {
    transform: scaleY(0.3);
  }
}

.song-title {
  font-weight: 600;
  margin-bottom: 2px;
}

.song-artist {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
}

.control-btn {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  padding: 10px 20px;
  border-radius: 25px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

.control-btn.muted {
  background: rgba(255, 107, 107, 0.3);
  border-color: rgba(255, 107, 107, 0.5);
}

/* Copyright */
.copyright {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  font-weight: 400;
  animation: slideInUp 1s ease-out 2.5s both;
}

/* Responsive design */
@media (max-width: 768px) {
  .main-heading {
    font-size: 2.5rem;
  }

  .upgrade-illustration {
    width: 250px;
    height: 250px;
  }

  .progress-container {
    width: 280px;
  }

  .music-bar {
    padding: 12px 20px;
  }

  .music-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
  }
}