phanpy/src/pages/welcome.css

#welcome {
  text-align: center;
  background-image: radial-gradient(
      circle at center,
      var(--bg-color),
      transparent 16em
    ),
    radial-gradient(circle at center, var(--bg-color), transparent 8em);
  background-repeat: no-repeat;
  background-attachment: fixed;
  padding: 16px;
  cursor: default;
}

#welcome .hero-container {
  padding-block: 60px;
  height: 100vh;
  height: 100svh;
  display: flex;
  flex-direction: column;
}

#welcome h1 {
  margin: 0;
  padding: 0;
  font-size: 5em;
  line-height: 1;
  letter-spacing: -1px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  mix-blend-mode: multiply;
}
@keyframes shine2 {
  0% {
    left: -100%;
  }
  20% {
    left: 100%;
  }
  100% {
    left: 100%;
  }
}
#welcome h1:before {
  content: '';
  position: absolute;
  z-index: 2;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(
    100deg,
    rgba(255, 255, 255, 0) 30%,
    rgba(255, 255, 255, 0.4),
    rgba(255, 255, 255, 0) 70%
  );
  top: 0;
  left: -100%;
  pointer-events: none;
  animation: shine2 5s ease-in-out 1s infinite;
}
@media (prefers-color-scheme: dark) {
  #welcome {
    background-image: none;
  }
  #welcome h1 {
    mix-blend-mode: normal;
  }
  #welcome h1:before {
    content: none;
  }
}
#welcome img {
  vertical-align: top;
  transition: transform 0.3s ease-out;
}
#welcome h1 img {
  filter: drop-shadow(-1px -1px var(--bg-blur-color))
    drop-shadow(0 -1px 1px #fff)
    drop-shadow(0 16px 32px var(--drop-shadow-color));
}
@media (prefers-color-scheme: dark) {
  #welcome h1 img {
    filter: none;
  }
}

#welcome h1:hover img {
  transform: scale(1.05);
}
#welcome .desc {
  font-size: 1.4em;
  text-wrap: balance;
  opacity: 0.7;
}
#welcome .hero-container > p {
  margin-top: 0;
}

#why-container .sections {
  padding-inline: 16px;
}
#why-container .sections section {
  text-align: start;
  max-width: 480px;
  background-color: var(--bg-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 17px 20px 40px var(--drop-shadow-color);
  margin-bottom: 48px;
}
#why-container .sections section h4 {
  margin: 0;
  padding: 30px 30px 0;
  font-size: 1.4em;
  font-weight: 600;
}
#why-container .sections section p {
  margin-inline: 30px;
  margin-bottom: 30px;
  opacity: 0.7;
  text-wrap: balance;
}
#why-container .sections section img {
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--outline-color);
}
@media (prefers-color-scheme: dark) {
  #why-container .sections section img {
    filter: invert(0.85) hue-rotate(180deg);
  }
}