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

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: hsl(0, 0%, 15%);
}

.postcard {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.sky {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 65%;
  background: #000000;
  background: linear-gradient(180deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 1) 50%, rgba(255, 150, 0, 1) 100%);
}

.sun {
  position: absolute;
  top: 60px;
  right: 80px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: rgb(100, 100, 100);
  box-shadow: 2px 7px 40px 33px rgba(125, 125, 125);
  z-index: 99;
  /* TODO: sun shape and glow */
  /* TODO: sun color experiment */
}

.hills {
  position: absolute;
  bottom: 20%;
  left: -10%;
  width: 120%;
  height: 40%;
  background: rgb(150, 75, 20);
  border-radius: 80%;
  z-index: 0;
  /* TODO: hills shape */
}

.water {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 30%;
  z-index: 0;
  background-color: rgb(128, 0, 128);
  /* TODO: water color and transparency */
}

.text-overlay {
  position: absolute;
  bottom: 40px;
  left: 0;
  width: 100%;
  text-align: center;
  font-family: Georgia, serif;
  /* TODO: text styling and shadow */
  /* TODO: text color experiment */
}

.star {
  position: absolute;
  top: 40%;
  left: 20%;
  z-index: 200;
  width: 80px;
  aspect-ratio: 1;
  background: rgb(75, 50, 5);
  clip-path: polygon(50% 0, 79% 90%, 2% 35%, 98% 35%, 21% 90%);
}

.triangle {
  width: 60px;
  position: absolute;
  top: 50%;
  right: 20%;
  z-index: 2;
  aspect-ratio: 1/cos(30deg);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  background-color: rgb(100, 100, 100);
}

.square {
  position: absolute;
  z-index: 99;
  width: 15px;
  height: 60px;
  background-color: rgb(75, 50, 5);
  bottom: 33%;
  left: 28%;
}