:root {
  --color-bg-studio: #121420;
  --color-bg-puzzle: #000000;
  --color-text: #667C99;
  --color-link: #8FB8E8;
  --color-border: rgba(102, 124, 153, 0.15);

  --font-jp: 'Kiwi Maru', "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  --font-en: 'Outfit', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

  --container-max: 480px;
  --container-pad: 24px;

  --s-1: 8px;
  --s-2: 16px;
  --s-3: 24px;
  --s-4: 32px;
  --s-5: 40px;
  --s-6: 48px;
  --s-8: 64px;
  --s-12: 96px;

  --r-card: 20px;
  --r-button: 28px;
  --r-icon: 12px;

  --tr-base: 0.2s ease;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-jp);
  color: var(--color-text);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.02em;
  min-height: 100vh;

  overscroll-behavior: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--tr-base);
}

a:hover {
  opacity: 0.7;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  border: 0;
  background: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

ul {
  list-style: none;
}

.page--studio { background: var(--color-bg-studio); }
.page--puzzle { background: var(--color-bg-puzzle); }

@media (min-width: 481px) {
  .page--puzzle { position: relative; }
  .page--puzzle::before {
    content: "";
    position: fixed;
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: var(--container-max);
    pointer-events: none;
    z-index: 0;

    box-shadow:
      -40px 0 80px 0 rgba(102, 124, 153, 0.18),
       40px 0 80px 0 rgba(102, 124, 153, 0.18);
  }

  .page--puzzle > main,
  .page--puzzle > footer { position: relative; z-index: 1; }
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.t-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.t-caption {
  font-size: 13px;
  letter-spacing: 0.05em;
}

.t-poetic {
  line-height: 2.0;
  letter-spacing: 0.04em;
}

.sns-row {
  display: flex;
  justify-content: center;
  gap: var(--s-2);
}

.sns-row a {
  display: block;
  width: 48px;
  height: 48px;
}

.sns-row img {
  width: 100%;
  height: 100%;
}

.copyright {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-align: center;
  opacity: 0.6;
  padding: var(--s-4) 0 var(--s-3);
}

.studio-hero {
  display: flex;
  justify-content: center;
  padding-top: var(--s-6);
}

.studio-hero__moon {
  width: 320px;
  max-width: 90%;
  height: auto;
}

.studio-mission {
  text-align: center;
  padding-top: var(--s-6);
}

.studio-mission__primary {
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: 0.04em;
}

.studio-mission__secondary {
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: 0.04em;
  margin-top: var(--s-2);
}

.studio-divider {
  display: flex;
  justify-content: center;
  padding: var(--s-6) 0;
}

.studio-divider__arrow {
  width: 21px;
  height: 12px;
  opacity: 0.7;
}

.puzzle-card {
  display: block;
  background: #000;
  border-radius: var(--r-card);
  padding: var(--s-4) var(--s-3) var(--s-4);
  margin: 0 auto var(--s-6);
  max-width: 100%;
  box-shadow: 0 0 80px rgba(143, 184, 232, 0.06);
  transition: opacity var(--tr-base);
}

.puzzle-card:hover { opacity: 1; }
.puzzle-card:hover .puzzle-card__cta { opacity: 0.85; }

.puzzle-card__eyebrow {
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.08em;
  margin-bottom: var(--s-2);
  opacity: 0.85;
}

.puzzle-card__logo {
  width: 165px;
  height: auto;
  margin: 0 auto var(--s-4);
}

.puzzle-card__screenshots {
  width: 100%;
  height: auto;
  margin: 0 auto var(--s-4);
}

.puzzle-card__desc {
  font-size: 14px;
  line-height: 1.85;
  margin-bottom: var(--s-4);
  padding: 0 var(--s-1);
}

.puzzle-card__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-1);
  background: var(--color-text);
  color: var(--color-bg-studio);
  border-radius: var(--r-button);
  padding: 18px var(--s-3);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: opacity var(--tr-base);
}

.puzzle-card__cta-arrow {
  width: 8px;
  height: 14px;

  filter: brightness(0) saturate(100%);
  opacity: 0.9;
}

.studio-sns {
  text-align: center;
  padding: var(--s-3) 0 var(--s-4);
}

.studio-sns__label {
  font-size: 14px;
  letter-spacing: 0.04em;
  margin-bottom: var(--s-3);
}

.puzzle-hero {
  text-align: center;
  padding-top: 80px;
}

.puzzle-hero__eyebrow {
  font-size: 13px;
  letter-spacing: 0.08em;
  margin-bottom: var(--s-2);
  opacity: 0.9;
}

.puzzle-hero__logo {
  width: 165px;
  height: auto;
  margin: 0 auto var(--s-8);
}

.puzzle-hero__lead {
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: 0.03em;
  margin: 0 auto;
}

.puzzle-hero__lead--strong {
  font-weight: 500;
  margin-bottom: 12px;
}

.puzzle-hero__lead--secondary {
  font-size: 14px;
  margin-bottom: var(--s-5);
}

.appstore-link {
  display: inline-block;
}

.appstore-link img {
  width: 220px;
  height: auto;
}

.appstore-note {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.04em;
  opacity: 0.5;
  position: relative;
  z-index: 2;
}

.puzzle-hero__sleeping {
  display: block;

  width: calc(100% + var(--container-pad) * 2);
  max-width: var(--container-max);
  height: auto;
  margin-left: calc(var(--container-pad) * -1);
  margin-top: -32px;
}

.puzzle-illust {
  position: relative;
  margin: -64px auto 0;
  padding: 0;
  max-width: var(--container-max);
  overflow: hidden;
}

.puzzle-illust__screenshots {
  display: block;
  width: 112%;
  max-width: none;
  height: auto;
  margin-left: -6%;
}

.puzzle-points {
  padding: var(--s-6) 0 var(--s-4);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.puzzle-point {
  width: 100%;
  max-width: 320px;
  text-align: left;
}

.puzzle-point + .puzzle-point {
  margin-top: var(--s-4);
}

.puzzle-point__num {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  margin-bottom: 6px;
  opacity: 0.6;
}

.puzzle-point__title {
  font-size: 19px;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 10px;
}

.puzzle-point__body {
  font-size: 14px;
  line-height: 1.85;
  border-left: 4px solid var(--color-border);
  border-radius: 1px;
  padding-left: 12px;
  opacity: 0.85;
}

.puzzle-producedby {
  display: flex;
  justify-content: flex-start;
  margin-top: 8px;
  padding-left: 12px;
}

.puzzle-producedby img {
  width: 110px;
  height: auto;
  opacity: 0.8;
}

.puzzle-dlcard {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--s-5);
  background: transparent;
  border: 2px solid var(--color-text);
  border-radius: var(--r-card);
  padding: var(--s-4) var(--s-3);
  margin: var(--s-6) auto var(--s-5);
}

.puzzle-dlcard__poetic {
  width: 100%;
  font-size: 15px;
  line-height: 2.0;
  letter-spacing: 0.04em;
}

.puzzle-dlcard__poetic p + p {
  margin-top: var(--s-2);
}

.puzzle-dlcard__row {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
}

.puzzle-dlcard__icon {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  flex-shrink: 0;
}

.puzzle-dlcard__body {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  align-items: flex-start;
  text-align: left;
}

.puzzle-dlcard__name {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.puzzle-dlcard__cta {
  align-self: flex-start;
}

.puzzle-dlcard__cta img {
  width: 156px;
  height: auto;
}

.puzzle-footer {
  padding-top: var(--s-3);
}

.puzzle-footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: var(--s-5);
}

.puzzle-footer__links a {
  font-size: 14px;
  letter-spacing: 0.04em;
}

.puzzle-footer__sns {
  margin-bottom: var(--s-5);
  justify-content: center;
  gap: var(--s-2);
}

.puzzle-footer__sns a {
  width: 44px;
  height: 44px;
}

.puzzle-footer__yokohama-wrap {
  position: relative;
  margin: 0 calc(var(--container-pad) * -1);
  max-width: var(--container-max);
}

.puzzle-footer__yokohama {
  display: block;
  width: 100%;
  height: auto;
}

.puzzle-footer__copyright {
  position: absolute;
  top: 40px;
  right: 40px;
  margin: 0;
  padding: 0;
  text-align: right;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.1em;
  opacity: 0.6;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 4px;
  border-radius: 4px;
}