:root {
  color-scheme: dark;
  --bg: #000000;
  --legal: #2b2b2b;
  --logo-width: min(64vw, 720px);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: #ffffff;
  font-family: Arial, Helvetica, sans-serif;
  overflow-x: hidden;
}

.scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.space-bg,
.space-shade,
.starfield {
  position: absolute;
  inset: 0;
}

.space-bg {
  background-image: url("./space-bg.jpeg");
  background-position: center top;
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.22;
  filter: saturate(0.7) brightness(0.82);
  transform: scale(1.03);
  -webkit-mask-image: linear-gradient(
    180deg,
    rgba(0, 0, 0, 1) 0%,
    rgba(0, 0, 0, 0.99) 82%,
    rgba(0, 0, 0, 0.72) 92%,
    rgba(0, 0, 0, 0.2) 98%,
    rgba(0, 0, 0, 0) 100%
  );
  mask-image: linear-gradient(
    180deg,
    rgba(0, 0, 0, 1) 0%,
    rgba(0, 0, 0, 0.99) 82%,
    rgba(0, 0, 0, 0.72) 92%,
    rgba(0, 0, 0, 0.2) 98%,
    rgba(0, 0, 0, 0) 100%
  );
}

.space-shade {
  background:
    radial-gradient(circle at 50% 18%, rgba(0, 0, 0, 0.12), transparent 28%),
    linear-gradient(
      180deg,
      rgba(0, 0, 0, 0.54) 0%,
      rgba(0, 0, 0, 0.34) 26%,
      rgba(0, 0, 0, 0.05) 64%,
      rgba(0, 0, 0, 0.18) 88%,
      rgba(0, 0, 0, 0.66) 100%
    );
}

.starfield {
  z-index: 1;
}

.star {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.98) 0 38%, transparent 72%);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.14);
  opacity: var(--opacity);
  transform: scale(1);
  transition-property: opacity, transform;
  transition-timing-function: ease-out;
}

.moon-anchor {
  position: absolute;
  left: 50%;
  top: 0;
  width: var(--logo-width);
  height: 100%;
  z-index: 0;
  pointer-events: none;
  transform: translateX(-50%);
}

.moon {
  position: absolute;
  left: 39.6%;
  top: clamp(34px, 6.8vh, 76px);
  width: clamp(62px, 6.4vw, 94px);
  height: auto;
  opacity: 0.72;
  filter:
    brightness(0.92)
    contrast(1.02)
    saturate(0.02)
    drop-shadow(0 0 14px rgba(205, 214, 255, 0.08));
  transform: translateX(-50%) rotate(82deg);
}

.page {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px 12px;
}

.hero {
  flex: 1;
  width: 100%;
  min-height: calc(100svh - 56px);
  display: grid;
  place-items: center;
  position: relative;
  isolation: isolate;
}

.turtle {
  position: absolute;
  top: 26%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.72;
}

.turtle-left {
  left: 50%;
  width: min(43vw, 680px);
  transform: translate(calc(-100% - 118px), -35%);
}

.turtle-right {
  left: 50%;
  width: min(43vw, 680px);
  transform: translate(52px, -31%);
}

.turtle-image {
  display: block;
  width: 100%;
  height: auto;
  filter: brightness(1.25) contrast(1.1);
  transform-origin: 50% 56%;
  will-change: transform;
}

.turtle-image-left {
  animation: turtleFloatLeft 8.8s ease-in-out infinite;
}

.turtle-image-right {
  animation: turtleFloatRight 8.8s ease-in-out infinite;
}

.logo-mark {
  position: relative;
  z-index: 1;
  width: var(--logo-width);
  aspect-ratio: 847 / 518;
}

.logo-base {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: auto;
}

.logo-email-link {
  position: absolute;
  left: 25.8%;
  top: 86.9%;
  width: 49.4%;
  height: 8.2%;
  z-index: 3;
  color: transparent;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  cursor: pointer;
}

.logo-email-link:visited,
.logo-email-link:hover,
.logo-email-link:active {
  color: transparent;
  text-decoration: none;
}

.legal {
  position: relative;
  z-index: 3;
  width: 100%;
  text-align: center;
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(7px, 1.1vw, 10px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--legal);
  padding-bottom: env(safe-area-inset-bottom, 0);
  user-select: none;
}

.legal-line {
  display: block;
}

.legal a,
.legal a:visited,
.legal [x-apple-data-detectors],
.legal a[x-apple-data-detectors="true"] {
  color: inherit !important;
  -webkit-text-fill-color: currentColor !important;
  text-decoration: none !important;
}

@keyframes turtleFloatLeft {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(-0.65deg) scale(1);
  }

  28% {
    transform: translate3d(4px, -6px, 0) rotate(1.05deg) scale(1.006);
  }

  62% {
    transform: translate3d(-3px, 4px, 0) rotate(-0.15deg) scale(0.998);
  }
}

@keyframes turtleFloatRight {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(0.65deg) scale(1);
  }

  30% {
    transform: translate3d(-4px, -6px, 0) rotate(-1.05deg) scale(1.006);
  }

  64% {
    transform: translate3d(3px, 4px, 0) rotate(0.15deg) scale(0.998);
  }
}

@media (max-width: 640px) {
  :root {
    --logo-width: min(82vw, 520px);
  }

  .page {
    padding: 18px 12px 10px;
  }

  .hero {
    min-height: calc(78svh - 18px);
  }

  .space-bg {
    opacity: 0.24;
    background-position: center top;
  }

  .moon {
    left: 39.6%;
    top: clamp(46px, 8.9vh, 78px);
    width: clamp(52px, 14vw, 78px);
    transform: translateX(-50%) rotate(70deg);
  }

  .turtle {
    top: 20.5%;
    opacity: 0.82;
  }

  .turtle-left {
    width: min(54vw, 252px);
    transform: translate(calc(-100% - 22px), -18%);
  }

  .turtle-right {
    width: min(54vw, 252px);
    transform: translate(18px, -13%);
  }

  .turtle-image {
    filter: brightness(1.34) contrast(1.12);
  }

  .logo-email-link {
    left: 22.5%;
    width: 55.5%;
    height: 10%;
  }

  .legal {
    font-size: 8px;
  }
}