:root {
  --ink: #07141a;
  --bay: #0d2a33;
  --reef: #1a4a52;
  --foam: #e8efe8;
  --mist: #b7c5c0;
  --light: #e2c48a;
  --light-dim: #a88955;
  --line: rgba(232, 239, 232, 0.14);
  --max: 72rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--foam);
  background: var(--ink);
  font-family: "Zen Kaku Gothic New", "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.02em;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

a:hover {
  color: var(--light);
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 20;
  background: var(--ink);
  padding: 0.5rem 0.75rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 20, 26, 0.84);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  text-decoration: none;
}

.brand:hover {
  color: var(--foam);
}

.brand-ja {
  font-family: "Zen Old Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.35rem;
  letter-spacing: 0.28em;
  line-height: 1.2;
}

.brand-en {
  font-size: 0.68rem;
  letter-spacing: 0.34em;
  color: var(--mist);
  text-transform: uppercase;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  font-size: 0.86rem;
  letter-spacing: 0.12em;
}

.nav a {
  text-decoration: none;
  color: var(--mist);
}

.nav a[aria-current="page"],
.nav a:hover {
  color: var(--light);
}

.hero {
  position: relative;
  min-height: calc(100vh - 4.5rem);
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(7, 20, 26, 0.18) 0%, rgba(7, 20, 26, 0.72) 55%, rgba(7, 20, 26, 0.96) 100%),
    radial-gradient(ellipse 80% 55% at 70% 20%, rgba(226, 196, 138, 0.22), transparent 55%),
    radial-gradient(ellipse 70% 60% at 15% 80%, rgba(26, 74, 82, 0.55), transparent 60%),
    linear-gradient(145deg, #0a222b 0%, #07141a 45%, #12363c 100%);
  background-size: cover;
  background-position: center;
  transform: scale(1.04);
  animation: drift 18s var(--ease) infinite alternate;
}

.hero-media.has-image {
  background-image:
    linear-gradient(180deg, rgba(7, 20, 26, 0.2) 0%, rgba(7, 20, 26, 0.78) 58%, rgba(7, 20, 26, 0.96) 100%),
    url("../images/hero.jpg");
}

.hero-inner {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: 4rem 0 3.5rem;
}

.hero-brand {
  margin: 0;
  font-family: "Zen Old Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(3.4rem, 12vw, 7.5rem);
  font-weight: 600;
  letter-spacing: 0.22em;
  line-height: 1.05;
  opacity: 0;
  transform: translateY(18px);
  animation: rise 1.1s var(--ease) 0.15s forwards;
}

.hero-romaji {
  margin: 0.85rem 0 0;
  font-size: 0.8rem;
  letter-spacing: 0.42em;
  color: var(--light);
  text-transform: uppercase;
  opacity: 0;
  animation: rise 1.1s var(--ease) 0.35s forwards;
}

.hero-lead {
  margin: 1.6rem 0 0;
  max-width: 28rem;
  font-size: 1.02rem;
  color: var(--mist);
  opacity: 0;
  animation: rise 1.1s var(--ease) 0.5s forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
  opacity: 0;
  animation: rise 1.1s var(--ease) 0.65s forwards;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--light-dim);
  color: var(--ink);
  background: var(--light);
  text-decoration: none;
  letter-spacing: 0.14em;
  font-size: 0.84rem;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.button:hover {
  background: var(--foam);
  border-color: var(--foam);
  color: var(--ink);
}

.button-ghost {
  color: var(--foam);
  background: transparent;
  border-color: var(--line);
}

.button-ghost:hover {
  color: var(--light);
  border-color: var(--light-dim);
  background: transparent;
}

main {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: 3.5rem 0 4.5rem;
}

.page-hero {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.5rem;
}

.page-hero h1 {
  margin: 0;
  font-family: "Zen Old Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 0.18em;
  font-weight: 600;
}

.page-hero p {
  margin: 0.9rem 0 0;
  max-width: 36rem;
  color: var(--mist);
}

.section + .section {
  margin-top: 3.5rem;
}

.section h2 {
  margin: 0 0 0.85rem;
  font-family: "Zen Old Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.55rem;
  letter-spacing: 0.16em;
  font-weight: 600;
}

.section p {
  margin: 0 0 1rem;
  color: var(--mist);
  max-width: 40rem;
}

.grid-works {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.work-slot {
  aspect-ratio: 4 / 5;
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(26, 74, 82, 0.35), rgba(7, 20, 26, 0.2)),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 10px,
      rgba(232, 239, 232, 0.03) 10px,
      rgba(232, 239, 232, 0.03) 11px
    );
  display: grid;
  place-items: end start;
  padding: 1rem;
  color: var(--mist);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.sku-list {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.sku-list li {
  display: grid;
  gap: 0.35rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
}

.sku-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.sku-id {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--light-dim);
}

.sku-name {
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.sku-meta {
  color: var(--mist);
  font-size: 0.92rem;
}

.note {
  margin-top: 2rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.92rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 1.25rem 2.75rem;
}

.footer-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 2rem;
  color: var(--mist);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
}

.footer-links a {
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes drift {
  to {
    transform: scale(1.08) translate3d(-1.2%, 1%, 0);
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-brand {
    letter-spacing: 0.14em;
  }

  .hero-romaji {
    letter-spacing: 0.28em;
  }
}