:root {
  color-scheme: dark;
  --ink: #071019;
  --paper: #e9edf0;
  --muted: #9aa9b4;
  --line: rgba(219, 235, 240, .16);
  --glow: #5dc2a7;
  --violet: #8e78c8;
  --amber: #d5ad69;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--paper);
  background: var(--ink);
  font-family: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-weight: 400;
  line-height: 1.75;
}
a { color: inherit; }
.skip { position: fixed; left: 1rem; top: -5rem; z-index: 20; padding: .7rem 1rem; background: white; color: #071019; }
.skip:focus { top: 1rem; }

.masthead {
  position: fixed;
  z-index: 10;
  inset: 0 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 4.5rem;
  padding: 0 clamp(1.2rem, 4vw, 4rem);
  background: linear-gradient(#071019e8, transparent);
}
.brand { text-decoration: none; font-family: "Shippori Mincho", "Yu Mincho", serif; letter-spacing: .2em; font-size: 1.05rem; font-weight: 500; }
nav { display: flex; gap: 1.5rem; }
nav a { text-decoration: none; color: #c2ccd2; font-size: .82rem; }
nav a:hover, nav a:focus-visible { color: white; }
.menu { display: none; color: white; background: transparent; border: 1px solid var(--line); padding: .55rem .8rem; }

.hero { min-height: 100svh; position: relative; display: grid; place-items: center; overflow: hidden; isolation: isolate; }
.hero-image { position: absolute; inset: 0; z-index: -4; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-video { position: absolute; inset: 0; z-index: -3; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.veil { position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, #071019a8, #07101935 48%, #07101982), linear-gradient(0deg, #071019 0%, transparent 42%, #0710195d); }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(circle at 54% 50%, transparent 0 18%, #07101950 68%); }
.hero-copy { width: min(90%, 60rem); text-align: center; transform: translateY(-3vh); text-shadow: 0 3px 22px #000; }
.eyebrow, .section-head p { margin: 0 0 .7rem; color: #aabcc5; font-size: .72rem; letter-spacing: .34em; }
h1 { margin: 0; font-family: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(3.2rem, 10vw, 8.6rem); font-weight: 400; letter-spacing: .11em; line-height: 1.1; }
.intro { margin: 2rem auto 2.6rem; font-family: "Shippori Mincho", "Yu Mincho", serif; font-size: clamp(1rem, 1.8vw, 1.2rem); letter-spacing: .08em; }
.enter { display: inline-flex; gap: 1rem; align-items: center; text-decoration: none; border-bottom: 1px solid #a9c0c8; padding: .55rem .1rem; font-size: .9rem; }
.paw { position: absolute; right: 3vw; bottom: 2rem; opacity: .33; filter: grayscale(1); transform: rotate(-14deg); }

.works { max-width: 78rem; margin: 0 auto; padding: clamp(6rem, 12vw, 10rem) clamp(1.2rem, 5vw, 4rem); }
.section-head { margin-bottom: 3rem; }
.section-head h2 { margin: 0; font: 400 clamp(2rem, 5vw, 3.8rem)/1.3 "Shippori Mincho", "Yu Mincho", serif; letter-spacing: .06em; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.card { position: relative; min-height: 19rem; padding: clamp(1.5rem, 4vw, 3.2rem); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; transition: background .3s ease, transform .3s ease; }
.card-link { position: absolute; inset: 0; z-index: 2; }
.card-link:focus-visible { outline: 1px solid var(--paper); outline-offset: -6px; }
.card > .number, .card > .kind, .card > h3, .card > p { position: relative; z-index: 1; }
.card > .status { z-index: 1; }
.card-art { position: absolute; z-index: 0; pointer-events: none; user-select: none; }
.tamamushi-card-art { right: -3%; bottom: -11%; width: auto; height: 112%; opacity: .78; filter: drop-shadow(-1rem 0 1.8rem #02070ba8); transition: opacity .3s ease, transform .4s ease; }
.beetle:hover .tamamushi-card-art { opacity: .92; transform: translateX(-2%) scale(1.025); }
.card::before { content: ""; position: absolute; width: 14rem; height: 14rem; right: -8rem; top: -8rem; border-radius: 50%; filter: blur(28px); opacity: .13; transition: opacity .3s, transform .3s; }
.card:hover { background: #0b1722; }
.card:hover::before { opacity: .35; transform: scale(1.15); }
.myth::before { background: #8f7ac8; }
.beetle::before { background: #52c6a3; }
.zero::before { background: #d4a862; }
.cats::before { background: #4b96b3; }
.art::before { background: #b58571; }
.manga::before { background: #e7a25f; }
.number { color: #6f7c84; font: 1rem/1 monospace; }
.kind { margin: 3rem 0 .3rem; color: var(--muted); font-size: .8rem; letter-spacing: .14em; }
.card h3 { margin: 0; font: 400 clamp(1.65rem, 3vw, 2.4rem)/1.3 "Shippori Mincho", "Yu Mincho", serif; }
.card > p:last-of-type { max-width: 25rem; margin: 1.2rem 0; color: #bac5cb; }
.status { position: absolute; left: clamp(1.5rem, 4vw, 3.2rem); bottom: 1.6rem; color: #77858e; font-size: .75rem; letter-spacing: .1em; }
.card:hover .status { color: var(--paper); }

.detail-page { min-height: 100vh; background: radial-gradient(circle at 78% 12%, var(--page-glow, #17302f) 0, transparent 28rem), var(--ink); }
.detail-page .masthead { background: linear-gradient(#071019f5, #071019a8 70%, transparent); }
.detail-main { width: min(72rem, calc(100% - 2.4rem)); margin: 0 auto; padding: clamp(8rem, 14vw, 11rem) 0 7rem; }
.detail-hero { max-width: 49rem; padding-bottom: clamp(4rem, 9vw, 7rem); }
.back-link { display: inline-block; margin-bottom: 3rem; color: var(--muted); text-decoration: none; font-size: .82rem; letter-spacing: .1em; }
.back-link:hover, .back-link:focus-visible { color: var(--paper); }
.detail-number { margin: 0 0 .8rem; color: var(--muted); font: .8rem/1 monospace; letter-spacing: .18em; }
.detail-title { margin: 0; font-size: clamp(2.8rem, 8vw, 6.8rem); font-weight: 400; letter-spacing: .07em; line-height: 1.2; }
.detail-intro { max-width: 38rem; margin: 2rem 0 0; color: #bac5cb; font-size: 1rem; }
.detail-section { padding: clamp(3.5rem, 7vw, 5.5rem) 0; border-top: 1px solid var(--line); }
.detail-section h2 { margin: 0 0 2.2rem; font-size: clamp(1.55rem, 4vw, 2.4rem); font-weight: 400; letter-spacing: .07em; }
.placeholder { color: #71808a; }
.work-slots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.work-slot { min-height: 13rem; display: flex; align-items: flex-end; padding: 1.3rem; border: 1px solid var(--line); color: #71808a; font-size: .78rem; letter-spacing: .09em; background: #0b17224d; }
.episode-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem; }
.episode-card { display: block; border: 1px solid var(--line); color: inherit; text-decoration: none; background: #0b17224d; transition: border-color .25s ease, background .25s ease, transform .25s ease; }
.episode-card[href]:hover { transform: translateY(-3px); border-color: #8e78c88c; background: #101b2a; }
.episode-card[href]:focus-visible { outline: 1px solid var(--paper); outline-offset: 4px; }
.episode-card.is-placeholder { cursor: default; }
.episode-thumb { aspect-ratio: 16 / 9; display: grid; place-items: center; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 50% 40%, #31294a 0, #121724 48%, #09111b 100%); color: #65727c; font-size: .78rem; letter-spacing: .12em; }
.episode-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.episode-copy { display: grid; gap: .45rem; padding: 1.25rem 1.35rem 1.4rem; }
.episode-number { color: #a898ce; font-size: .78rem; letter-spacing: .13em; }
.episode-title { color: var(--paper); font-size: 1.15rem; }
.episode-link-state { margin-top: .3rem; color: #596872; font-size: .72rem; letter-spacing: .08em; }
.external-slots { display: flex; flex-wrap: wrap; gap: .8rem; }
.external-slot { padding: .8rem 1.2rem; border: 1px solid var(--line); color: #71808a; font-size: .82rem; }
.detail-note { margin-top: 1.4rem; color: #596872; font-size: .75rem; }

.art-main { width: min(82rem, calc(100% - 2.4rem)); }
.art-main .detail-hero { padding-bottom: clamp(3rem, 7vw, 5rem); }
.art-gallery { columns: 3; column-gap: clamp(1rem, 2.4vw, 1.8rem); }
.art-card { break-inside: avoid; margin: 0 0 clamp(1rem, 2.4vw, 1.8rem); border: 1px solid var(--line); background: #0b17224d; }
.art-image { aspect-ratio: 4 / 5; display: grid; place-items: center; overflow: hidden; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 50% 38%, #33262b 0, #151821 50%, #09111b 100%); color: #65727c; font-size: .78rem; letter-spacing: .12em; }
.art-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.art-image-original { aspect-ratio: auto; display: block; }
.art-image-original img { width: 100%; height: auto; object-fit: contain; }
.art-open { width: 100%; padding: 0; border: 0; border-bottom: 1px solid var(--line); color: inherit; font: inherit; cursor: zoom-in; }
.art-open:focus-visible { outline: 1px solid var(--paper); outline-offset: -5px; }
.art-caption { margin: 0; padding: 1rem 1.1rem 1.15rem; color: #7d8991; font-size: .92rem; letter-spacing: .06em; }
.art-lightbox { width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: clamp(1rem, 3vw, 2.5rem); border: 0; color: var(--paper); background: rgba(2, 6, 10, .96); }
.art-lightbox[open] { display: grid; place-items: center; }
.art-lightbox::backdrop { background: rgba(0, 0, 0, .82); }
.art-lightbox-figure { max-width: 100%; max-height: 100%; margin: 0; display: grid; place-items: center; gap: .8rem; }
.art-lightbox-image { display: block; max-width: calc(100vw - 3rem); max-height: calc(100vh - 6rem); width: auto; height: auto; object-fit: contain; }
.art-lightbox-caption { color: #c8d0d5; font-size: .9rem; letter-spacing: .08em; text-align: center; }
.art-lightbox-close { position: fixed; z-index: 2; top: 1rem; right: 1rem; width: 2.8rem; height: 2.8rem; padding: 0; border: 1px solid rgba(255,255,255,.28); border-radius: 50%; color: white; background: rgba(7,16,25,.75); font: 300 1.7rem/1 sans-serif; cursor: pointer; }
.art-lightbox-close:hover, .art-lightbox-close:focus-visible { background: rgba(255,255,255,.13); border-color: rgba(255,255,255,.65); }

.manga-main { width: min(82rem, calc(100% - 2.4rem)); }
.manga-main .detail-hero { padding-bottom: clamp(3rem, 7vw, 5rem); }
.manga-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1rem, 2.5vw, 1.7rem); }
.manga-card { padding: 0; overflow: hidden; border: 1px solid var(--line); color: inherit; background: #0b17224d; text-align: left; font: inherit; cursor: zoom-in; transition: transform .25s ease, border-color .25s ease, background .25s ease; }
.manga-card:hover { transform: translateY(-3px); border-color: rgba(231,162,95,.58); background: #101b2a; }
.manga-card:focus-visible { outline: 1px solid var(--paper); outline-offset: 4px; }
.manga-thumb { position: relative; aspect-ratio: 1 / 1.05; overflow: hidden; border-bottom: 1px solid var(--line); background: #e8e5df; }
.manga-thumb img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: top center; transition: transform .35s ease; }
.manga-card:hover .manga-thumb img { transform: scale(1.015); }
.manga-pages { position: absolute; right: .75rem; bottom: .75rem; padding: .28rem .58rem; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; color: white; background: rgba(7,16,25,.82); font: .72rem/1.4 sans-serif; }
.manga-copy { display: grid; gap: .5rem; padding: 1.15rem 1.25rem 1.35rem; }
.manga-episode { color: #d8a06b; font-size: .76rem; letter-spacing: .12em; }
.manga-title { color: var(--paper); font-size: clamp(1rem, 2vw, 1.2rem); line-height: 1.6; }
.manga-open-state { color: #66757e; font-size: .72rem; letter-spacing: .08em; }
.manga-viewer { width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; color: var(--paper); background: rgba(2,6,10,.97); }
.manga-viewer[open] { display: grid; grid-template-rows: auto minmax(0, 1fr); }
.manga-viewer::backdrop { background: rgba(0,0,0,.86); }
.manga-viewer-head { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.4rem; padding: .8rem clamp(1rem, 4vw, 2.5rem); border-bottom: 1px solid var(--line); background: rgba(7,16,25,.96); }
.manga-viewer-label { margin: 0; color: #cbd3d7; font-size: .88rem; letter-spacing: .05em; }
.manga-viewer-close { flex: 0 0 auto; width: 2.7rem; height: 2.7rem; padding: 0; border: 1px solid rgba(255,255,255,.28); border-radius: 50%; color: white; background: transparent; font: 300 1.65rem/1 sans-serif; cursor: pointer; }
.manga-viewer-close:hover, .manga-viewer-close:focus-visible { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.62); }
.manga-pages-view { overflow-y: auto; overscroll-behavior: contain; padding: clamp(1rem, 3vw, 2.2rem); }
.manga-pages-inner { width: min(72rem, 100%); margin: 0 auto; display: grid; gap: 1rem; }
.manga-page-image { width: 100%; height: auto; display: block; background: white; }

.about { min-height: 55vh; display: grid; place-content: center; gap: 1.2rem; padding: 5rem 1.5rem; text-align: center; border-top: 1px solid var(--line); background: radial-gradient(circle at center, #17302f 0, #071019 52%); }
.about p { margin: 0; }
.motto { color: var(--amber); font: 400 clamp(1.5rem, 4vw, 2.6rem)/1.4 "Shippori Mincho", "Yu Mincho", serif; letter-spacing: .18em; }
footer { display: flex; justify-content: space-between; padding: 2rem clamp(1.2rem, 5vw, 4rem); color: #71808a; border-top: 1px solid var(--line); font-size: .78rem; }
footer a { text-decoration: none; }

@media (max-width: 720px) {
  .masthead { min-height: 4rem; background: #071019da; }
  .menu { display: block; }
  nav { position: absolute; top: 4rem; left: 0; right: 0; display: none; flex-direction: column; gap: 0; padding: .7rem 1.2rem 1.2rem; background: #071019f5; border-bottom: 1px solid var(--line); }
  nav.open { display: flex; }
  nav a { padding: .75rem 0; font-size: .9rem; border-bottom: 1px solid var(--line); }
  .hero { min-height: 92svh; }
  .hero-image { object-position: 44% center; }
  .hero-video { object-position: center; }
  h1 { font-size: clamp(2.8rem, 15vw, 5rem); letter-spacing: .06em; }
  .intro br { display: none; }
  .grid { grid-template-columns: 1fr; }
  .card { min-height: 17rem; }
  .tamamushi-card-art { right: -7%; bottom: -8%; height: 105%; opacity: .68; }
  .detail-main { width: min(100% - 2.4rem, 72rem); padding-top: 7rem; }
  .detail-title { font-size: clamp(2.5rem, 13vw, 4.5rem); }
  .work-slots { grid-template-columns: 1fr; }
  .work-slot { min-height: 9rem; }
  .episode-grid { grid-template-columns: 1fr; }
  .art-gallery { columns: 2; }
  .manga-grid { grid-template-columns: 1fr; }
  .manga-thumb { aspect-ratio: 1 / .92; }
  footer { gap: 1rem; flex-direction: column; }
}

@media (max-width: 480px) {
  .art-gallery { columns: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
  .hero-video { display: none; }
}