:root {
  color-scheme: dark;
  --ink: #f5f8ff;
  --muted: #aeb9d6;
  --night: #070a16;
  --panel: #10162b;
  --line: #27345d;
  --blue: #9bdcff;
  --blue-strong: #65c2f2;
  --slime: #9ad353;
  --slime-deep: #609a32;
  --red: #dd5770;
  --gold: #f0ba58;
  --shadow: rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--night);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 12%, rgba(101, 194, 242, 0.13), transparent 30rem),
    linear-gradient(180deg, #090d1d 0%, var(--night) 72%);
  font-family:
    -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Yu Gothic", "Noto Sans JP", sans-serif;
  line-height: 1.75;
}

a {
  color: var(--blue);
}

a:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

main,
footer {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.hero {
  min-height: 670px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: center;
  gap: 72px;
  padding: 72px 0 56px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--slime);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 10ch;
  margin-bottom: 24px;
  font-size: clamp(3.2rem, 9vw, 7.1rem);
  line-height: 0.98;
  letter-spacing: -0.07em;
  text-wrap: balance;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  line-height: 1.25;
}

.lead {
  max-width: 38rem;
  margin-bottom: 32px;
  color: #dbe5ff;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 800;
  text-decoration: none;
  transition:
    transform 150ms ease,
    border-color 150ms ease,
    background-color 150ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  color: #0d1a0a;
  background: var(--slime);
  box-shadow: 0 12px 34px rgba(96, 154, 50, 0.24);
}

.button--primary:hover {
  background: #afe56a;
}

.button--secondary {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(16, 22, 43, 0.72);
}

.button--secondary:hover {
  border-color: var(--blue-strong);
}

.preview-notice {
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.86rem;
}

.pet-stage {
  position: relative;
  min-height: 480px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(rgba(101, 194, 242, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(101, 194, 242, 0.08) 1px, transparent 1px),
    #0c1123;
  background-size: 24px 24px;
  box-shadow: 0 28px 80px var(--shadow);
}

.pet-stage img {
  position: relative;
  z-index: 2;
  width: min(67%, 310px);
  height: auto;
  image-rendering: pixelated;
  filter: drop-shadow(0 18px 22px rgba(0, 0, 0, 0.42));
}

.slime-glow {
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  background: rgba(154, 211, 83, 0.16);
  filter: blur(30px);
}

.pet-stage__label {
  position: absolute;
  right: 18px;
  bottom: 16px;
  left: 18px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-align: center;
}

code {
  color: #dfffb9;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.verify {
  display: grid;
  grid-template-columns: minmax(250px, 0.72fr) minmax(0, 1.28fr);
  gap: 64px;
  padding: 76px 0;
}

.verify {
  align-items: start;
}

.verify pre {
  overflow-x: auto;
  margin: 0 0 20px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #050812;
}

.verify p {
  grid-column: 2;
  color: var(--muted);
}

footer {
  padding: 26px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-align: center;
}

.verification-page {
  max-width: 820px;
  padding: 72px 0 64px;
}

.verification-page h1 {
  max-width: none;
  font-size: clamp(2.6rem, 7vw, 5rem);
}

.verification-page h2 {
  margin-top: 48px;
}

.verification-page pre {
  overflow-x: auto;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #050812;
}

.verification-page .back-link {
  display: inline-block;
  margin-bottom: 32px;
  font-weight: 700;
}

.verification-page .fingerprint {
  overflow-wrap: anywhere;
}

@media (max-width: 800px) {
  main,
  footer {
    width: min(100% - 28px, 680px);
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-top: 52px;
  }

  .hero__copy {
    order: 2;
  }

  .pet-stage {
    min-height: 380px;
  }

  .verify {
    grid-template-columns: 1fr;
  }

  .verify {
    gap: 24px;
    padding: 52px 0;
  }

  .verify p {
    grid-column: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}