/* SHIZUKA Adult LP — visual language mirrored from original landscape LP */
:root {
  --paper: #f6f3ee;
  --paper-deep: #ebe6de;
  --card: #faf9f6;
  --ink: #171c21;
  --ink-soft: #34322d;
  --muted: #e8e4dc;
  --muted-fg: #686860;
  --accent: #dce6ea;
  --accent-deep: #aec1c3;
  --blue-gray: #637987;
  --veil: #0d1b1fcc;
  --danger: #a33b31;
  --header-h: 4.25rem;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-mincho: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans: "Zen Kaku Gothic New", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --font-mono: "DM Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

[hidden] {
  display: none !important;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: var(--paper);
}
.skip-link:focus {
  top: 1rem;
}

/* ---------- Age gate ---------- */
.age-gate {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    radial-gradient(ellipse at 30% 20%, #dce6ea55, transparent 50%),
    radial-gradient(ellipse at 80% 80%, #ebe6de, transparent 45%),
    var(--paper);
}

.age-gate__panel,
.age-gate__under {
  width: min(440px, 100%);
  text-align: center;
  padding: 2.5rem 1.75rem;
  background: var(--card);
  border: 1px solid #d8d3ca;
  box-shadow: 0 24px 60px #0912130a;
}

.age-gate__brand {
  font-family: var(--font-mincho);
  letter-spacing: 0.35em;
  font-size: 0.85rem;
  margin: 0 0 1.5rem;
}

.age-gate__title {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(1.35rem, 3.5vw, 1.75rem);
  line-height: 1.55;
  margin: 0 0 1rem;
}

.age-gate__text {
  color: var(--muted-fg);
  font-size: 0.95rem;
  margin: 0 0 1.75rem;
}

.age-gate__actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.age-gate__note {
  margin: 1.25rem 0 0;
  font-size: 0.75rem;
  color: var(--muted-fg);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: #f6f3eef0;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #0000000d;
}

.site-header__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.logo__mark {
  font-family: var(--font-mincho);
  font-weight: 600;
  letter-spacing: 0.28em;
  font-size: 0.95rem;
}

.logo__badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  line-height: 1.2;
}

.nav {
  display: none;
  gap: 1.75rem;
  font-size: 0.875rem;
  color: var(--ink-soft);
}

.nav a {
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav a:hover {
  color: var(--ink);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 1px;
  background: var(--accent-deep);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav a:hover::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-toggle {
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.75px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1.25rem 1.25rem;
  background: var(--paper);
  border-bottom: 1px solid #0000000d;
}
.mobile-nav a {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--muted);
  font-size: 0.95rem;
}

@media (min-width: 860px) {
  .nav {
    display: flex;
  }
  .nav-toggle,
  .mobile-nav {
    display: none !important;
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.2s var(--ease);
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn--primary:hover {
  background: #141d21;
}

.btn--ghost {
  background: transparent;
  border-color: #171c2133;
  color: var(--ink);
}
.btn--ghost:hover {
  background: var(--accent);
  border-color: var(--accent-deep);
}

.btn--text {
  padding: 0.4rem 0.6rem;
  font-size: 0.8rem;
  color: var(--muted-fg);
}
.btn--text[aria-pressed="true"] {
  color: var(--danger);
}

.btn--lg {
  min-width: 11rem;
  padding: 1rem 1.75rem;
}

.text-link {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--accent-deep);
  color: var(--blue-gray);
  transition: color 0.2s;
}
.text-link:hover {
  color: var(--ink);
}

/* ---------- Layout ---------- */
.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 5.5rem 1.25rem;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-gray);
  margin: 0 0 1rem;
}

.section-title {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(1.85rem, 4.5vw, 2.75rem);
  line-height: 1.45;
  letter-spacing: 0.04em;
  margin: 0 0 1.25rem;
}

.section-title--sm {
  font-size: clamp(1.4rem, 3vw, 1.85rem);
}

.section-lead,
.body-copy {
  color: var(--ink-soft);
  font-size: 0.98rem;
  max-width: 36rem;
  margin: 0 0 1rem;
}

.section-head {
  margin-bottom: 2rem;
}

/* ---------- Hero ---------- */
.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
    padding-top: 4.5rem;
    padding-bottom: 5.5rem;
  }
}

.hero__title {
  font-family: var(--font-mincho);
  font-weight: 500;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.35;
  letter-spacing: 0.06em;
  margin: 0 0 1.5rem;
}

.hero__line {
  display: block;
}

.hero__lead {
  font-size: 1.02rem;
  color: var(--ink-soft);
  margin: 0 0 2rem;
  max-width: 28rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.photo-frame {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  overflow: hidden;
  background: #192126;
  border-radius: var(--radius);
  text-align: left;
}

.photo-frame img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.75) contrast(1.05);
  transition: transform 0.7s var(--ease), filter 0.4s;
}

.photo-frame:hover img {
  transform: scale(1.03);
  filter: saturate(0.85) contrast(1.08);
}

.photo-frame__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, #0d1417c7 100%),
    linear-gradient(90deg, #0912135c 0%, transparent 40%);
  pointer-events: none;
}

.photo-frame__veil--soft {
  background: linear-gradient(180deg, transparent 60%, #0d141780 100%);
}

.photo-caption {
  position: absolute;
  left: 1.1rem;
  right: 1.1rem;
  bottom: 1.1rem;
  color: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  z-index: 1;
}
.photo-caption span:first-child {
  font-family: var(--font-mincho);
  font-size: 1rem;
}

.photo-frame--hero {
  max-width: 420px;
  margin-left: auto;
}

@media (max-width: 899px) {
  .photo-frame--hero {
    margin: 0 auto;
  }
}

/* ---------- About ---------- */
.about__grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 900px) {
  .about__grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
  }
  .about__figure {
    margin-top: 2.5rem;
  }
}

.about__figure {
  position: relative;
}

.quote {
  margin: -2.5rem 0 0 1.5rem;
  padding: 1.5rem 1.5rem 1.35rem;
  background: var(--card);
  border: 1px solid var(--muted);
  position: relative;
  z-index: 2;
  max-width: 18rem;
}

.quote p {
  font-family: var(--font-mincho);
  font-size: 1.25rem;
  line-height: 1.55;
  margin: 0 0 0.85rem;
}

.quote cite {
  font-style: normal;
  font-size: 0.8rem;
  color: var(--muted-fg);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- Works ---------- */
.works {
  background: linear-gradient(180deg, transparent, #ebe6de55 20%, #ebe6de55 80%, transparent);
}

.works-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.chip {
  padding: 0.45rem 0.95rem;
  border: 1px solid #171c2133;
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--muted-fg);
  background: transparent;
  transition: all 0.2s var(--ease);
}
.chip:hover,
.chip.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.works-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 980px) {
  .works-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }
  /* subtle stagger on first row only — denser overall for 24 cards */
  .works-grid li:nth-child(2),
  .works-grid li:nth-child(4) {
    margin-top: 1.25rem;
  }
  .works-grid li:nth-child(n + 5) {
    margin-top: 0;
  }
}

.work-card {
  position: relative;
  overflow: hidden;
  background: #192126;
  border-radius: var(--radius);
}
.work-card button {
  display: block;
  width: 100%;
  padding: 0;
  text-align: left;
}
.work-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.92);
  transition: transform 0.6s var(--ease);
}
.work-card:hover img {
  transform: scale(1.04);
}
.work-card__meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.5rem 1rem 1rem;
  background: linear-gradient(transparent, #0d1417c7);
  color: var(--paper);
}
.work-card__title {
  font-family: var(--font-mincho);
  font-size: 1rem;
  margin: 0 0 0.2rem;
}
.work-card__sub {
  margin: 0;
  font-size: 0.75rem;
  opacity: 0.85;
  font-family: var(--font-mono);
}
.work-card.is-hidden {
  display: none;
}


/* ---------- Samples strip ---------- */
.samples {
  padding-top: 3.5rem;
  padding-bottom: 2.5rem;
}

.sample-strip {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

@media (min-width: 640px) {
  .sample-strip {
    grid-template-columns: repeat(4, 1fr);
    gap: 0.95rem;
  }
}

@media (min-width: 980px) {
  .sample-strip {
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
  }
}

.sample-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  background: transparent;
}

.sample-card__thumb {
  display: block;
  width: 100%;
  padding: 0;
  overflow: hidden;
  background: #192126;
  border-radius: var(--radius);
  text-align: left;
}

.sample-card__thumb img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04) brightness(0.96);
  transition: transform 0.55s var(--ease), filter 0.35s;
}

.sample-card__thumb:hover img {
  transform: scale(1.04);
  filter: saturate(0.82) contrast(1.06) brightness(1);
}

.sample-card__link {
  font-family: var(--font-mincho);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sample-card__link:hover {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.works {
  padding-top: 3.5rem;
}

/* ---------- Purchase ---------- */
.purchase__grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 900px) {
  .purchase__grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: 4rem;
  }
}

.specs {
  margin: 2rem 0;
  padding: 0;
  border-top: 1px solid var(--muted);
}

.specs > div {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--muted);
  font-size: 0.92rem;
}

.specs dt {
  color: var(--muted-fg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  align-self: center;
}

.specs dd {
  margin: 0;
  font-family: var(--font-mincho);
  letter-spacing: 0.03em;
}

.price-tax {
  margin-left: 0.35rem;
  font-size: 0.8rem;
  color: var(--muted-fg);
  font-family: var(--font-sans);
}

.purchase__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.purchase__note {
  font-size: 0.75rem;
  color: var(--muted-fg);
  margin: 0;
}

.cover-card {
  background: var(--card);
  border: 1px solid var(--muted);
  padding: 1.25rem;
  max-width: 360px;
  margin: 0 auto;
  box-shadow: 0 20px 50px #0912130a;
}

.cover-card img {
  width: 100%;
  aspect-ratio: 5 / 7;
  object-fit: cover;
  background: #192126;
  filter: saturate(0.7);
}

.cover-card__meta {
  padding: 1.1rem 0.25rem 0.25rem;
}

.cover-card__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--blue-gray);
  margin: 0 0 0.4rem;
  text-transform: uppercase;
}

.cover-card__title {
  font-family: var(--font-mincho);
  font-size: 1.15rem;
  margin: 0 0 0.35rem;
}

.cover-card__price {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* ---------- Footer ---------- */
.site-footer {
  position: relative;
  border-top: 1px solid var(--muted);
  background: var(--paper-deep);
  padding: 3rem 1.25rem 4rem;
}

.site-footer__inner {
  max-width: 1120px;
  margin: 0 auto;
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.25rem;
}

.site-footer__disclaimer {
  max-width: 48rem;
  font-size: 0.8rem;
  color: var(--muted-fg);
  line-height: 1.7;
  margin: 0 0 1.5rem;
}

.site-footer__copy {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #85877f;
  margin: 0;
}

.to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  z-index: 40;
}
.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ---------- Modals ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: #0d1417c7;
  backdrop-filter: blur(4px);
}

.modal__panel {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  max-height: min(90vh, 900px);
  overflow: auto;
  background: var(--paper);
  padding: 1.5rem;
  border: 1px solid #d8d3ca;
}

.modal__panel--wide {
  width: min(920px, 100%);
  padding: 2rem 1.5rem 1.75rem;
}

.modal__close {
  position: absolute;
  top: 0.75rem;
  right: 0.9rem;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--muted-fg);
}

.modal__panel img {
  width: 100%;
  max-height: 70vh;
  object-fit: contain;
  background: #192126;
}

.modal__caption {
  margin: 0.85rem 0 0;
  text-align: center;
  font-family: var(--font-mincho);
  font-size: 0.95rem;
}

.preview-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 1.5rem 0;
}

@media (min-width: 700px) {
  .preview-strip {
    grid-template-columns: repeat(4, 1fr);
  }
}

.preview-strip button {
  padding: 0;
  overflow: hidden;
  background: #192126;
}
.preview-strip img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.7);
  max-height: none;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  z-index: 150;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  font-size: 0.85rem;
  border-radius: var(--radius);
  box-shadow: 0 10px 30px #00000033;
}

body.is-locked {
  overflow: hidden;
}

.br-sp {
  display: none;
}
@media (min-width: 600px) {
  .br-sp {
    display: inline;
  }
}

.work-card__cta {
  display: inline-block;
  margin-top: 0.55rem;
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: #5a5248;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}
.work-card__cta:hover {
  color: #1c1916;
}
.work-card--empty {
  grid-column: 1 / -1;
  padding: 1.5rem;
  color: #7a7268;
}
.preview-card {
  display: block;
  overflow: hidden;
  border-radius: 2px;
}
.preview-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.preview-card:hover img {
  transform: scale(1.04);
}