* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  height: 100vh;
  background: url("bg.webp") center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  position: relative;
  text-align: center;
}

.overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.6), rgba(0,0,0,0.85));
  z-index: 0;
}

.hero {
  position: relative;
  z-index: 1;
  max-width: 700px;
  padding: 20px;
}

.logo {
  font-size: 68px;
  font-weight: 900;
  letter-spacing: 6px;
  text-shadow: 0 4px 10px rgba(0,0,0,0.8);
  margin-bottom: 26px;
}

.subtitle {
  font-size: 26px;
  margin-bottom: 40px;
}

.subtitle span {
  color: #ffd900;
  font-weight: bold;
}

.download-btn {
  background: linear-gradient(to bottom, #44c300, #2e9b00);
  border: none;
  padding: 18px 40px;
  font-size: 22px;
  font-weight: bold;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 6px 0 #1f6d00;
  color: white;
}

.download-btn:hover {
  transform: translateY(2px);
  box-shadow: 0 4px 0 #1f6d00;
}

.download-btn:active {
  transform: translateY(6px);
  box-shadow: none;
}

.version {
  margin-top: 20px;
  font-size: 14px;
  opacity: 0.7;
}

@media (max-width: 768px) {
  .logo {
    font-size: 42px;
  }

  .subtitle {
    font-size: 22px;
  }

  .download-btn {
    width: 100%;
  }
}