@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;500&display=swap");

:root {
  --ink: #292927;
  --muted-ink: #6f6d68;
  --paper: #fff;
  --header-height: 112px;
  --page-gutter: clamp(28px, 5.8vw, 96px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Serif JP", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  z-index: 10;
  inset: 0 0 auto;
  height: var(--header-height);
  padding: 0 var(--page-gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgb(255 255 255 / 92%);
}

.site-logo { display: inline-flex; align-items: center; position: relative; z-index: 12; }

.site-logo img { display: block; width: 120px; height: auto; }

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(25px, 2.7vw, 48px);
  margin-left: 48px;
  font-family: "Noto Serif JP", "Yu Mincho", serif;
  font-size: 13px;
  letter-spacing: .09em;
}

.site-nav a {
  position: relative;
  padding: 10px 0;
  white-space: nowrap;
}

.site-nav a::after {
  content: "";
  position: absolute;
  inset: auto 0 4px;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .45s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }

.home-page .site-nav a[aria-current="page"]::after { transform: scaleX(1); }

.menu-button { display: none; }

.coming-soon-modal {
  position: fixed;
  z-index: 20;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--page-gutter);
  background: rgb(35 34 31 / 42%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .2s ease-out, visibility 0s linear .2s;
}

.coming-soon-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}

.coming-soon-modal__panel {
  position: relative;
  width: min(88vw, 390px);
  padding: clamp(58px, 9vw, 78px) clamp(32px, 7vw, 62px);
  color: var(--ink);
  border: 1px solid rgb(255 253 247 / 24%);
  background: rgb(250 247 239 / 62%);
  box-shadow: 0 12px 42px rgb(29 28 25 / 4%);
  backdrop-filter: blur(3px);
  text-align: center;
  outline: none;
  opacity: 1;
  visibility: visible;
  transform: none;
}

.coming-soon-modal__message {
  margin: 0;
  font-size: clamp(18px, 3vw, 23px);
  font-weight: 400;
  line-height: 2.15;
  letter-spacing: .2em;
  text-indent: .2em;
}

.coming-soon-modal__message span { display: block; }

.coming-soon-modal__close {
  position: absolute;
  top: 12px;
  right: 13px;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 0;
  color: var(--muted-ink);
  background: transparent;
  font: 300 15px/1 "Noto Serif JP", "Yu Mincho", serif;
  cursor: pointer;
  opacity: .42;
}

.coming-soon-modal__close:hover,
.coming-soon-modal__close:focus-visible { opacity: 1; }

body.modal-open { overflow: hidden; }

.hero {
  position: relative;
  min-height: 100svh;
  padding: calc(var(--header-height) + 48px) var(--page-gutter) 68px;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-background {
  position: absolute;
  z-index: -1;
  inset: var(--header-height) 0 0;
  background-image: url("%E7%92%B0.PNG");
  background-position: center;
  background-repeat: no-repeat;
  background-size: clamp(640px, 68vw, 1040px) auto;
  opacity: .07;
  pointer-events: none;
}

.hero-message {
  width: min(100%, 920px);
  text-align: center;
  opacity: 0;
  transform: translateY(12px);
  animation: quiet-entrance 4.2s cubic-bezier(.22, .6, .3, 1) .35s forwards;
}

.hero h1 {
  margin: 0;
  font-size: clamp(25px, 2.8vw, 43px);
  font-weight: 500;
  line-height: 2.05;
  letter-spacing: clamp(.1em, .35vw, .2em);
}

.hero h1 span { display: block; }

.signature-lockup {
  width: fit-content;
  margin: clamp(46px, 7vh, 76px) auto 0;
  display: flex;
  align-items: flex-end;
  gap: clamp(5px, .65vw, 8px);
}

.signature {
  margin: 0;
  color: var(--muted-ink);
  font-size: clamp(13px, 1.1vw, 16px);
  letter-spacing: .28em;
  text-indent: .28em;
}

.signature-seal {
  display: block;
  width: clamp(24px, 2.25vw, 32px);
  height: auto;
}

.hero-orbit-nav { display: none; }

@keyframes quiet-entrance {
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 901px) {
  .home-page .site-nav { display: none; }

  .home-page .hero-message {
    animation: hero-message-sequence 8s cubic-bezier(.22, .6, .3, 1) .35s forwards;
  }

  .hero-orbit-nav {
    position: absolute;
    inset: calc(var(--header-height) + 2vh) 4vw 2vh;
    display: block;
    pointer-events: none;
  }

  .hero-orbit-nav a {
    position: absolute;
    color: var(--muted-ink);
    font-size: calc(clamp(15px, 1.18vw, 18px) + 2pt);
    letter-spacing: .16em;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateY(9px);
    animation: orbit-menu-entrance 1.8s cubic-bezier(.22, .6, .3, 1) var(--entrance-delay) forwards;
    pointer-events: auto;
  }

  .hero-orbit-nav a::after {
    content: "";
    position: absolute;
    inset: auto .16em -7px 0;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .55s ease;
  }

  .hero-orbit-nav a:hover::after,
  .hero-orbit-nav a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .hero-orbit-nav__profile { --entrance-delay: 8.55s; top: 17%; left: 29%; }
  .hero-orbit-nav__kindle { --entrance-delay: 8.75s; top: 10%; right: 33%; }
  .hero-orbit-nav__youtube { --entrance-delay: 8.95s; top: 35%; right: 22%; }
  .hero-orbit-nav__movie { --entrance-delay: 9.15s; right: 30%; bottom: 16%; }
  .hero-orbit-nav__friends { --entrance-delay: 9.35s; bottom: 10%; left: 35%; }
  .hero-orbit-nav__contact { --entrance-delay: 9.55s; top: 51%; left: 21%; }

  .home-intro-seen .home-page .hero-message {
    opacity: 0;
    visibility: hidden;
    animation: none;
  }

  .home-intro-seen .home-page .hero-orbit-nav a {
    opacity: 1;
    visibility: visible;
    transform: none;
    animation: none;
  }
}

@keyframes hero-message-sequence {
  0% { opacity: 0; transform: translateY(12px); }
  34%, 58% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-8px); visibility: hidden; }
}

@keyframes orbit-menu-entrance {
  from { visibility: visible; }
  to { opacity: 1; visibility: visible; transform: translateY(0); }
}

@media (max-width: 900px) {
  :root { --header-height: 88px; }

  .hero-background { background-size: clamp(520px, 82vw, 720px) auto; }

  .menu-button {
    position: relative;
    z-index: 12;
    width: 38px;
    height: 38px;
    padding: 10px 5px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    border: 0;
    background: transparent;
    color: var(--ink);
    cursor: pointer;
  }

  .menu-button__line {
    display: block;
    width: 28px;
    height: 1px;
    background: currentColor;
    transition: transform .35s ease;
  }

  .menu-button[aria-expanded="true"] .menu-button__line:first-child { transform: translateY(4.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] .menu-button__line:nth-child(2) { transform: translateY(-4.5px) rotate(-45deg); }

  .site-nav {
    position: fixed;
    z-index: 11;
    inset: 0;
    margin: 0;
    padding: 110px var(--page-gutter) 60px;
    flex-direction: column;
    justify-content: center;
    gap: 25px;
    background: var(--paper);
    font-size: 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .4s ease, visibility .4s, transform .4s ease;
  }

  .site-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  body.menu-open { overflow: hidden; }
}

@media (max-width: 600px) {
  :root { --header-height: 78px; --page-gutter: 24px; }
  .site-logo img { width: 94px; }
  .hero { padding-bottom: 42px; }
  .hero-background { background-size: clamp(440px, 115vw, 620px) auto; }
  .hero-message { margin-top: -1vh; }
  .hero h1 { font-size: clamp(20px, 6vw, 27px); line-height: 2.15; letter-spacing: .08em; }
  .signature-lockup { margin-top: 42px; gap: 5px; }
  .signature { font-size: 13px; }
  .signature-seal { width: 25px; }
  .coming-soon-modal__panel { width: min(86vw, 340px); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-message { opacity: 1; transform: none; animation: none; }
  .site-nav, .site-nav a::after, .menu-button__line { transition: none; }

  .home-page .hero-message { opacity: 1; transform: none; animation: none; }
  .hero-orbit-nav a { opacity: 1; visibility: visible; transform: none; animation: none; }
  .coming-soon-modal { transition: none; }
}