/* Atelier Nirin（架空の教室の制作見本）
   コンセプト「花の図録」：写真を図版のように、静かに大きく見せる。
   色は写真から取った（霧のような灰緑・植物の緑黒・ラナンキュラスの赤み）。 */

@font-face { font-family: "Nirin Serif Fallback"; src: local("Times New Roman"), local("Times"), local("Noto Serif"); size-adjust: 72%; }

:root {
  --paper: #E6EAE5;      /* 背景の壁（花瓶の後ろの灰緑の壁から） */
  --paper-2: #EFF2ED;    /* 一段明るい面 */
  --ink: #14201A;        /* 葉の影の緑黒 */
  --ink-2: #46564C;
  --mute: #5C6B61;
  --line: #C3CAC3;
  --accent: #A8344F;     /* 濃い赤のラナンキュラスのつぼみ */
  --accent-l: #E8A9B5;   /* 暗い面で使う淡い赤み */
  --rose: #DDBEC0;       /* 最初の画面の壁の色 */
  --dark: #0F1612;       /* 図録の暗い区間 */
  --on-dark: #ECEFE9;
  --on-dark-2: #A9B4AC;
  --serif: "Instrument Serif", "Nirin Serif Fallback", "Times New Roman", serif;
  --sans: "Zen Kaku Gothic New", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --gutter: clamp(20px, 5.2vw, 76px);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 12px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.9;
  letter-spacing: .04em;
  overflow-x: hidden;
  overflow-wrap: anywhere;
}
body.viewer-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: .22em; text-decoration-thickness: 1px; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; letter-spacing: inherit; }
i { font-style: italic; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.dark :focus-visible, .plates :focus-visible, .viewer :focus-visible { outline-color: var(--accent-l); }

.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -80px; z-index: 100; background: var(--ink); color: var(--paper); padding: .6rem 1rem; }
.skip:focus { top: 8px; }
.br-pc { display: none; }
@media (min-width: 840px) { .br-pc { display: inline; } .br-sp { display: none; } }

/* ---- 入場の動き（これ1つだけ） ---- */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- 見本の表示 ---- */
.demo-bar { background: var(--ink); color: var(--paper); font-size: .75rem; line-height: 1.6; letter-spacing: .05em; padding: .55rem var(--gutter); text-align: left; }
.demo-bar strong { font-weight: 500; margin-right: .5em; }

/* ---- ヘッダー ---- */
.site-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem var(--gutter); }
.mark { text-decoration: none; display: inline-block; line-height: 1; }
.mark-en { font-family: var(--serif); font-size: 1.6rem; letter-spacing: .01em; }
.gnav { display: none; }
.idx-btn { background: none; border: 0; padding: .6rem 0 .6rem 1rem; min-height: 44px; font-size: .8125rem; letter-spacing: .12em; cursor: pointer; text-decoration: underline; text-underline-offset: .3em; text-decoration-thickness: 1px; }
.idx { padding: 0 var(--gutter) 1.25rem; border-bottom: 1px solid var(--line); }
.idx ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.5rem; }
.idx a { display: block; padding: .7rem 0; border-top: 1px solid var(--line); text-decoration: none; font-size: .9375rem; }
@media (min-width: 900px) {
  .gnav { display: block; }
  .gnav ul { display: flex; gap: 2.2rem; }
  .gnav a { text-decoration: none; font-size: .8125rem; letter-spacing: .1em; padding: .5rem 0; background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: background-size .5s var(--ease); }
  .gnav a:hover { background-size: 100% 1px; }
  .idx-btn, .idx { display: none; }
}

/* ---- 最初の画面 ---- */
.hero { position: relative; }
.hero-media { position: relative; overflow: hidden; background: var(--rose); height: min(74vh, 128vw); height: min(74dvh, 128vw); }
.hero-media picture, .hero-media img { display: block; width: 100%; height: 100%; }
.hero-media img { object-fit: cover; object-position: 50% 40%; }
.hero-title { padding: 1.5rem var(--gutter) 0; }
.h1-en { display: block; font-family: var(--serif); font-weight: 400; font-size: clamp(3.4rem, 17vw, 5.5rem); line-height: .92; letter-spacing: -.012em; }
.h1-jp { display: block; margin-top: .9rem; font-size: .8125rem; font-weight: 500; letter-spacing: .28em; color: var(--ink-2); }
.hero-foot { padding: 1.4rem var(--gutter) 0; display: grid; gap: .8rem; }
.hero-line { font-size: 1.0625rem; line-height: 1.85; font-weight: 400; letter-spacing: .04em; }
.hero-sub { font-size: .8125rem; line-height: 1.8; color: var(--ink-2); }
.text-link { justify-self: start; font-size: .875rem; letter-spacing: .14em; padding: .5rem 0; min-height: 44px; display: inline-flex; align-items: center; }
@media (min-width: 840px) {
  .hero-media { height: min(76vh, 58vw); height: min(76dvh, 58vw); min-height: 480px; }
  .hero-media img { object-position: 50% 6%; }
  .hero-title { position: absolute; left: 0; top: 0; padding: clamp(24px, 3.6vw, 56px) var(--gutter); pointer-events: none; }
  .h1-en { font-size: clamp(4.6rem, 10.4vw, 10rem); }
  .h1-jp { font-size: .875rem; margin-top: 1.1rem; margin-left: .35rem; color: var(--ink); }
  .hero-foot { grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: .5rem 3rem; padding-top: 1.8rem; padding-bottom: .5rem; }
  .hero-line { grid-column: 1 / -1; }
  .hero-sub { grid-column: 1; }
  .text-link { grid-column: 2; }
  .hero-line { font-size: 1.1875rem; }
  .hero-sub { padding-bottom: .15rem; }
  .text-link { justify-self: end; }
}
@media (min-width: 1200px) {
  .hero-foot { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr) auto; }
  .hero-line { grid-column: auto; }
  .hero-sub { grid-column: auto; }
  .text-link { grid-column: auto; }
}

/* ---- 共通の見出し ---- */
.eyebrow { font-family: var(--serif); font-style: italic; font-size: 1.0625rem; letter-spacing: .02em; color: var(--accent); line-height: 1; margin-bottom: 1rem; }
.sec-head, .teacher-body, .lessons-head, .sns-head, .trial-flow, .access-body { max-width: 40rem; }
h2 { font-size: clamp(1.5rem, 5.6vw, 2.15rem); font-weight: 500; line-height: 1.5; letter-spacing: .06em; }
h3 { font-size: 1.0625rem; font-weight: 500; line-height: 1.6; letter-spacing: .06em; }
.note { font-size: .8125rem; line-height: 1.8; color: var(--ink-2); }
.lead { font-size: .9375rem; line-height: 1.95; color: var(--ink-2); }

/* ---- 作品（暗い区間） ---- */
.plates { background: var(--dark); color: var(--on-dark); padding: clamp(72px, 14vw, 168px) var(--gutter) clamp(72px, 12vw, 150px); }
.plates .eyebrow { color: var(--accent-l); }
.plates h2 { display: flex; flex-direction: column; gap: .4rem; font-weight: 400; }
.h-big { font-family: var(--serif); font-style: italic; font-weight: 400; font-size: clamp(3.6rem, 15vw, 9.5rem); line-height: .9; letter-spacing: -.01em; }
.h-sm { font-size: .875rem; letter-spacing: .3em; color: var(--on-dark-2); font-weight: 400; padding-left: .2rem; }
.plates .lead { margin-top: 1.6rem; color: var(--on-dark-2); max-width: 30rem; }
.plate-grid { margin-top: clamp(56px, 10vw, 120px); }

.plate { margin-top: clamp(56px, 13vw, 104px); }
.plate:first-child { margin-top: 0; }
.plate-link { display: block; position: relative; text-decoration: none; cursor: zoom-in; background: #1a221d; }
.plate-link img { width: 100%; height: auto; }
.plate-link:hover img { opacity: .94; }
.plate img { transition: opacity .4s var(--ease); }
.plate figcaption { display: grid; grid-template-columns: auto minmax(0, 1fr); column-gap: .9rem; row-gap: .05rem; margin-top: .85rem; font-size: .8125rem; line-height: 1.65; color: var(--on-dark-2); }
.plate .no { grid-row: 1 / span 3; font-family: var(--serif); font-style: italic; font-size: 1.5rem; line-height: 1; color: var(--accent-l); padding-top: .1rem; letter-spacing: 0; }
.plate .nm { color: var(--on-dark); font-weight: 500; letter-spacing: .06em; }
.plate .lat { font-family: var(--serif); font-size: .9375rem; letter-spacing: .02em; }
.plate .meta { letter-spacing: .06em; }

/* スマホ：同じ幅で並べず、左右にずらす */
.pl-1 { margin-inline: calc(var(--gutter) * -1); }
.pl-1 figcaption { padding-inline: var(--gutter); }
.pl-2 { width: 84%; }
.pl-3 { width: 58%; margin-left: auto; }
.pl-4 { width: 100%; }
.pl-5 { width: 52%; }
.pl-6 { width: 78%; margin-left: auto; }
.pl-7 { width: 66%; }
.pl-8 { margin-inline: calc(var(--gutter) * -1); }
.pl-8 figcaption { padding-inline: var(--gutter); }
.pl-9 { width: 60%; margin-left: auto; }

@media (min-width: 900px) {
  .plate-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(12px, 2vw, 32px); align-items: start; }
  .plate { width: auto; margin: 0; }
  .pl-1 { grid-column: 1 / -1; grid-row: 1; margin-inline: calc(var(--gutter) * -1); }
  .pl-2 { grid-column: 2 / 7; grid-row: 2; margin-top: clamp(80px, 11vw, 168px); }
  .pl-3 { grid-column: 9 / 12; grid-row: 2; align-self: end; margin-bottom: clamp(24px, 6vw, 96px); }
  .pl-5 { grid-column: 1 / 4; grid-row: 3; align-self: end; margin-top: clamp(80px, 12vw, 190px); }
  .pl-4 { grid-column: 5 / 11; grid-row: 3; margin-top: clamp(80px, 12vw, 190px); }
  .pl-6 { grid-column: 3 / 8; grid-row: 4; margin-top: clamp(80px, 12vw, 190px); }
  .pl-7 { grid-column: 9 / 13; grid-row: 4; align-self: end; margin-top: clamp(80px, 12vw, 190px); }
  .pl-8 { grid-column: 1 / 10; grid-row: 5; margin-inline: calc(var(--gutter) * -1) 0; margin-top: clamp(80px, 12vw, 190px); }
  .pl-8 figcaption { padding-inline: var(--gutter) 0; }
  .pl-9 { grid-column: 10 / 13; grid-row: 5; align-self: end; margin-top: clamp(80px, 12vw, 190px); }
  .pl-1 figcaption { padding-inline: var(--gutter); }
}

.plate-more { margin-top: clamp(64px, 11vw, 130px); display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 2rem; }
.btn-line { background: none; border: 1px solid var(--on-dark-2); color: var(--on-dark); padding: .85rem 1.5rem; min-height: 48px; font-size: .9375rem; letter-spacing: .12em; cursor: pointer; display: inline-flex; align-items: baseline; gap: .8rem; transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease); }
.btn-line:hover { background: var(--on-dark); color: var(--dark); border-color: var(--on-dark); }
.btn-line .count { font-family: var(--serif); font-style: italic; font-size: 1.25rem; letter-spacing: 0; }
.btn-quiet { background: none; border: 0; padding: .6rem 0; min-height: 44px; font-size: .875rem; letter-spacing: .1em; cursor: pointer; text-decoration: underline; text-underline-offset: .3em; text-decoration-thickness: 1px; color: inherit; }

/* 絞り込みと全作品の一覧 */
.index-panel { margin-top: 2.2rem; padding-top: 1.8rem; border-top: 1px solid #2c372f; }
.filters { display: grid; gap: 1.2rem 3rem; }
.f-group { display: grid; gap: .5rem; }
.f-label { font-size: .75rem; letter-spacing: .24em; color: var(--on-dark-2); }
.chips { display: flex; flex-wrap: wrap; gap: .5rem .55rem; }
.chip { background: none; border: 1px solid #3a463d; color: var(--on-dark); min-height: 44px; padding: .35rem 1rem; font-size: .875rem; letter-spacing: .08em; cursor: pointer; display: inline-flex; align-items: center; gap: .5rem; transition: background-color .25s var(--ease), border-color .25s var(--ease); }
.chip:hover { border-color: var(--on-dark-2); }
.chip[aria-pressed="true"] { background: var(--on-dark); color: var(--dark); border-color: var(--on-dark); }
.dot { width: .7rem; height: .7rem; border-radius: 50%; display: inline-block; border: 1px solid rgba(255,255,255,.28); }
.dot-red { background: #B8283F; } .dot-pink { background: #E7A1B0; } .dot-white { background: #F3F1EA; }
.dot-violet { background: #8A74C2; } .dot-yellow { background: #E7C23A; } .dot-green { background: #5E8E5F; }
.chip[aria-pressed="true"] .dot { border-color: rgba(0,0,0,.35); }
.f-result { display: flex; align-items: center; flex-wrap: wrap; gap: .4rem 1.5rem; font-size: .875rem; color: var(--on-dark-2); }
.f-result .btn-quiet { color: var(--on-dark); }
.index-grid { margin-top: 1.6rem; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.4rem .9rem; }
.index-grid li[hidden] { display: none; }
.ix-item { display: block; width: 100%; background: none; border: 0; padding: 0; text-align: left; cursor: zoom-in; color: inherit; }
.ix-thumb { display: block; aspect-ratio: 4 / 5; overflow: hidden; background: #1a221d; }
.ix-thumb img { width: 100%; height: 100%; object-fit: cover; }
.ix-cap { display: flex; gap: .6rem; align-items: baseline; margin-top: .55rem; font-size: .8125rem; line-height: 1.5; color: var(--on-dark); }
.ix-cap .n { flex: none; white-space: nowrap; font-family: var(--serif); font-style: italic; font-size: 1.0625rem; color: var(--accent-l); letter-spacing: 0; }
.ix-empty { grid-column: 1 / -1; color: var(--on-dark-2); font-size: .9375rem; }
@media (min-width: 700px) { .index-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } .filters { grid-template-columns: auto 1fr; } .f-result { grid-column: 1 / -1; } }
@media (min-width: 1100px) { .index-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); } }

/* ---- 先生 ---- */
.teacher { padding: clamp(72px, 13vw, 160px) var(--gutter); display: grid; gap: 2.2rem; }
.teacher-photo { width: 72%; }
.teacher-photo img { width: 100%; height: auto; }
.teacher-photo figcaption, .lessons-photo figcaption { margin-top: .6rem; font-size: .75rem; color: var(--ink-2); letter-spacing: .08em; }
.who { margin-top: 1.1rem; display: flex; align-items: baseline; flex-wrap: wrap; gap: .3rem 1rem; }
.who-jp { font-size: 1.125rem; font-weight: 500; letter-spacing: .14em; }
.who-en { font-family: var(--serif); font-style: italic; font-size: 1.1875rem; color: var(--ink-2); letter-spacing: .02em; }
.prose { margin-top: 1.4rem; line-height: 2; text-align: left; }
.facts { margin-top: 2rem; border-top: 1px solid var(--line); }
.facts > div { display: grid; grid-template-columns: 6.5rem minmax(0, 1fr); gap: 1rem; padding: .8rem 0; border-bottom: 1px solid var(--line); font-size: .875rem; line-height: 1.7; }
.facts dt { color: var(--ink-2); letter-spacing: .1em; font-size: .8125rem; }
@media (min-width: 900px) {
  .teacher { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(12px, 2vw, 32px); align-items: end; }
  .teacher-photo { grid-column: 2 / 6; width: auto; }
  .teacher-body { grid-column: 7 / 12; padding-bottom: 1rem; max-width: none; }
}

/* ---- レッスン ---- */
.lessons { padding: clamp(24px, 4vw, 48px) var(--gutter) clamp(72px, 13vw, 160px); display: grid; gap: 2.4rem; }
.lessons-head .note { margin-top: 1rem; }
.lessons-photo { margin-top: 2rem; width: 60%; margin-left: auto; }
.lessons-photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% 78%; }
.lessons-table table { width: 100%; border-collapse: collapse; }
.lessons-table thead { display: none; }
.lessons-table tr { display: block; padding: 1.3rem 0; border-top: 1px solid var(--ink); }
.lessons-table tr:last-child { border-bottom: 1px solid var(--ink); }
.lessons-table tbody th { display: block; text-align: left; font-weight: 500; font-size: 1.0625rem; letter-spacing: .08em; margin-bottom: .5rem; }
.c-en { display: block; font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 1.0625rem; color: var(--accent); line-height: 1.2; letter-spacing: .01em; }
.lessons-table td { display: block; position: relative; padding: .15rem 0 .15rem 6.5rem; font-size: .875rem; line-height: 1.8; }
.lessons-table td::before { content: attr(data-label); position: absolute; left: 0; top: .3rem; color: var(--ink-2); font-size: .75rem; letter-spacing: .1em; }
.lessons-table .price { padding-top: .1rem; }
.lessons-table .price { font-family: var(--serif); font-size: 1.375rem; line-height: 1.4; letter-spacing: .01em; }
.lessons-table .price small { font-family: var(--sans); font-size: .75rem; color: var(--ink-2); letter-spacing: .06em; white-space: nowrap; }
@media (min-width: 900px) {
  .lessons { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(12px, 2vw, 32px); align-items: start; }
  .lessons-head { grid-column: 1 / 5; }
  .lessons-photo { width: auto; margin-left: 0; margin-top: 3rem; }
  .lessons-table { grid-column: 6 / 13; padding-top: .4rem; }
  .lessons-table thead { display: table-header-group; }
  .lessons-table th[scope="col"] { text-align: left; font-weight: 400; font-size: .75rem; letter-spacing: .14em; color: var(--ink-2); padding: 0 1rem .7rem 0; }
  .lessons-table tr { display: table-row; padding: 0; border: 0; }
  .lessons-table tbody tr > * { border-top: 1px solid var(--ink); vertical-align: top; padding: 1.4rem 1rem 1.4rem 0; }
  .lessons-table tbody tr:last-child > * { border-bottom: 1px solid var(--ink); }
  .lessons-table tbody th { display: table-cell; margin: 0; width: 24%; }
  .lessons-table td { display: table-cell; position: static; padding: 1.4rem 1rem 1.4rem 0; font-size: .875rem; }
  .lessons-table td::before { content: none; }
  .lessons-table td:nth-child(3) { width: 18%; white-space: normal; }
  .lessons-table .price { width: 16%; padding-top: 1.4rem; }
}

/* ---- SNSの写真 ---- */
.sns { background: var(--paper-2); padding: clamp(72px, 13vw, 160px) var(--gutter); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sns-head { max-width: none; }
.sns h2 { font-size: clamp(1.3rem, 5vw, 2rem); line-height: 1.6; }
@media (min-width: 840px) { .sns h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); } }
.sns .lead { margin-top: 1rem; }
.flow { margin-top: clamp(40px, 8vw, 80px); display: grid; gap: 1rem; justify-items: start; align-items: center; }
.flow-src { display: flex; gap: 1.4rem; }
.src { display: grid; gap: .55rem; width: 6.5rem; }
.src-name { font-size: .8125rem; letter-spacing: .1em; }
.frame { display: block; aspect-ratio: 1; overflow: hidden; border: 1px solid var(--ink); padding: 3px; background: var(--paper-2); }
.frame img { width: 100%; height: 100%; object-fit: cover; }
.flow-arrow { display: flex; align-items: center; gap: .8rem; color: var(--accent); }
.flow-word { font-size: .75rem; letter-spacing: .14em; writing-mode: horizontal-tb; color: var(--ink-2); }
.arrow-h { display: none; }
.arrow-v { display: block; }
.flow-dst { display: grid; gap: .6rem; width: 100%; max-width: 30rem; }
.dst-name { font-size: .8125rem; letter-spacing: .1em; }
.strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; padding: 8px; border: 1px solid var(--ink); background: var(--paper); }
.strip img { width: 100%; aspect-ratio: 1; object-fit: cover; }
@media (min-width: 840px) {
  .flow { grid-template-columns: auto auto minmax(0, 1fr); gap: 2.2rem; justify-items: stretch; }
  .arrow-h { display: block; } .arrow-v { display: none; }
  .flow-arrow { flex-direction: column; gap: .5rem; }
  .src { width: 9rem; }
  .flow-dst { max-width: 38rem; }
  .strip { gap: 8px; padding: 10px; }
}
.posts-head { margin-top: clamp(64px, 10vw, 120px); max-width: 44rem; }
.posts-head h3 { font-size: 1.125rem; }
.posts-head .en { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--accent); font-size: 1.25rem; margin-left: .4rem; letter-spacing: .01em; }
.posts-head .note { margin-top: .6rem; }
.handle { font-family: var(--serif); font-size: .9375rem; letter-spacing: .02em; }
.posts { margin-top: 2rem; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem 1rem; align-items: start; }
.post img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.post-meta { margin-top: .65rem; display: flex; align-items: baseline; gap: .8rem; font-size: .75rem; color: var(--ink-2); letter-spacing: .06em; }
.post-meta time { font-family: var(--serif); font-size: .9375rem; letter-spacing: .02em; color: var(--ink); }
.post-src { letter-spacing: .08em; }
.post-cap { margin-top: .3rem; font-size: .8125rem; line-height: 1.75; letter-spacing: .04em; }
.posts .post:nth-child(2n) { margin-top: 2.2rem; }
@media (min-width: 840px) {
  .posts { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3rem clamp(16px, 2.4vw, 40px); }
  .posts .post:nth-child(2n) { margin-top: 0; }
  .posts .post:nth-child(3n+2) { margin-top: 3.5rem; }
  .posts .post:nth-child(3n) { margin-top: 1.2rem; }
}

/* ---- 体験の流れと予定 ---- */
.trial { padding: clamp(72px, 13vw, 160px) var(--gutter); display: grid; gap: 3rem; }
.steps { margin-top: 1.6rem; border-top: 1px solid var(--ink); }
.steps li { display: grid; grid-template-columns: 3.4rem minmax(0, 1fr); gap: 1rem; padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
.s-no { font-family: var(--serif); font-style: italic; font-size: 2rem; line-height: 1; color: var(--accent); letter-spacing: 0; }
.steps p { margin-top: .15rem; font-size: .875rem; line-height: 1.85; color: var(--ink-2); }
.cal-title { font-size: 1.125rem; font-weight: 500; display: flex; align-items: baseline; flex-wrap: wrap; gap: .4rem .9rem; }
.cal-title .en { font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 2rem; letter-spacing: 0; line-height: 1; color: var(--accent); }
.cal-title small { font-size: .75rem; font-weight: 400; color: var(--ink-2); letter-spacing: .06em; }
.cal { margin-top: 1.2rem; width: 100%; max-width: 30rem; border-collapse: collapse; table-layout: fixed; }
.cal th { font-size: .75rem; font-weight: 400; color: var(--ink-2); padding: .4rem 0; border-bottom: 1px solid var(--ink); letter-spacing: .1em; }
.cal th abbr { text-decoration: none; }
.cal td { text-align: center; padding: 0; height: 3.1rem; font-family: var(--serif); font-size: 1.125rem; color: var(--mute); border-bottom: 1px solid var(--line); letter-spacing: 0; }
.cal td.blank { border-bottom-color: transparent; }
.cal .day { width: 100%; max-width: 3rem; height: 2.75rem; min-width: 44px; margin: 0 auto; background: none; border: 1px solid var(--ink); color: var(--ink); font-family: var(--serif); font-size: 1.1875rem; line-height: 1; letter-spacing: 0; cursor: pointer; transition: background-color .25s var(--ease), color .25s var(--ease); }
.cal .day:hover { background: var(--paper-2); }
.cal .day[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.cal-legend { margin-top: .9rem; display: flex; align-items: center; gap: .6rem; font-size: .75rem; color: var(--ink-2); }
.legend-mark { width: 1.1rem; height: .9rem; border: 1px solid var(--ink); display: inline-block; }
.cal-status { margin-top: 1.3rem; min-height: 1.9em; font-size: .9375rem; }
.btn-solid { margin-top: .6rem; background: var(--accent); color: #F6F8F4; border: 0; padding: .85rem 1.6rem; min-height: 48px; font-size: .9375rem; letter-spacing: .12em; cursor: pointer; transition: background-color .25s var(--ease); }
.btn-solid:hover:not(:disabled) { background: #8C2A41; }
.btn-solid:disabled { background: #B9C0B9; color: #3C4A41; cursor: not-allowed; }
.cal-demo { margin-top: .8rem; min-height: 1.9em; font-size: .875rem; color: var(--accent); font-weight: 500; }
@media (min-width: 900px) {
  .trial { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(12px, 2vw, 32px); align-items: start; }
  .trial-flow { grid-column: 1 / 6; }
  .trial-cal { grid-column: 7 / 13; }
}

/* ---- アクセス・フッター ---- */
.access { padding: 0 var(--gutter) clamp(72px, 12vw, 140px); }
.access-body { max-width: none; border-top: 1px solid var(--ink); padding-top: clamp(40px, 7vw, 72px); display: grid; gap: 1.4rem; }
.info > div { display: grid; grid-template-columns: 5rem minmax(0, 1fr); gap: 1rem; padding: .85rem 0; border-bottom: 1px solid var(--line); font-size: .9375rem; line-height: 1.8; }
.info { border-top: 1px solid var(--line); }
.info dt { font-size: .8125rem; color: var(--ink-2); letter-spacing: .1em; padding-top: .1rem; }
@media (min-width: 900px) {
  .access-body { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(12px, 2vw, 32px); align-items: start; }
  .access-head { grid-column: 1 / 5; }
  .info { grid-column: 6 / 13; }
  .access-body .note { grid-column: 6 / 13; margin-top: -.6rem; }
}

.site-foot { background: var(--paper-2); border-top: 1px solid var(--line); padding: clamp(40px, 7vw, 72px) var(--gutter); display: grid; gap: 2rem; font-size: .8125rem; line-height: 1.9; color: var(--ink-2); }
.foot-demo { border-left: 3px solid var(--accent); padding-left: 1.1rem; max-width: 46rem; color: var(--ink); }
.foot-demo-title { font-weight: 500; letter-spacing: .12em; margin-bottom: .3rem; }
.foot-cols { display: grid; gap: .5rem; max-width: 46rem; }

/* ---- 作品の拡大表示 ---- */
.viewer { position: fixed; inset: 0; width: 100vw; height: 100vh; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: #0A0F0C; color: var(--on-dark); overflow: hidden; }
.viewer[open] { display: flex; flex-direction: column; }
.viewer::backdrop { background: #0A0F0C; }
.v-bar { flex: none; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .35rem .6rem .35rem 1rem; min-height: 56px; }
.v-count { display: flex; align-items: baseline; gap: .9rem; }
.v-no { font-family: var(--serif); font-style: italic; font-size: 1.5rem; line-height: 1; color: var(--accent-l); letter-spacing: 0; }
.v-pos { font-size: .75rem; letter-spacing: .12em; color: var(--on-dark-2); }
.v-tools { display: flex; align-items: center; gap: .2rem; }
.v-tools button { background: none; border: 0; min-width: 44px; min-height: 44px; padding: 0 .6rem; font-size: 1.375rem; line-height: 1; cursor: pointer; color: var(--on-dark); }
.v-tools .v-close { font-size: .875rem; letter-spacing: .14em; text-decoration: underline; text-underline-offset: .3em; text-decoration-thickness: 1px; margin-left: .4rem; }
.v-tools button:disabled { color: #4b564e; cursor: default; }
.v-stage { position: relative; flex: 1 1 auto; min-height: 0; overflow: hidden; display: flex; align-items: center; justify-content: center; touch-action: none; overscroll-behavior: contain; user-select: none; -webkit-user-select: none; cursor: zoom-in; outline-offset: -3px; }
.v-stage.is-zoomed { cursor: grab; }
.v-stage.is-dragging { cursor: grabbing; }
.v-stage img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; transform-origin: 50% 50%; will-change: transform; -webkit-user-drag: none; pointer-events: none; }
.v-nav { position: absolute; top: 50%; transform: translateY(-50%); background: none; border: 0; width: 48px; height: 80px; padding: 0; display: flex; align-items: center; justify-content: center; color: var(--on-dark); cursor: pointer; opacity: .85; z-index: 2; filter: drop-shadow(0 0 3px rgba(0,0,0,.55)); }
.v-nav svg { display: block; }
.v-nav[hidden] { display: none; }
.v-nav:hover { opacity: 1; }
.v-prev { left: .1rem; } .v-next { right: .1rem; }
.v-cap { flex: none; padding: .7rem 1rem calc(.9rem + env(safe-area-inset-bottom)); display: grid; grid-template-columns: auto minmax(0, 1fr); column-gap: .9rem; font-size: .8125rem; line-height: 1.65; color: var(--on-dark-2); min-height: 4.6rem; }
.v-cap .no { grid-row: 1 / span 3; font-family: var(--serif); font-style: italic; font-size: 1.5rem; line-height: 1; color: var(--accent-l); letter-spacing: 0; }
.v-cap .nm { color: var(--on-dark); font-weight: 500; letter-spacing: .06em; }
.v-cap .lat { font-family: var(--serif); font-size: .9375rem; letter-spacing: .02em; }
@media (min-width: 900px) {
  .v-cap { grid-template-columns: auto auto auto 1fr; align-items: baseline; column-gap: 1.4rem; min-height: 3.2rem; padding-inline: 1.4rem; }
  .v-cap .no { grid-row: auto; }
  .v-bar { padding-inline: 1.4rem; }
  .v-nav { width: 72px; }
  .v-prev { left: .8rem; } .v-next { right: .8rem; }
}
@media (prefers-reduced-motion: reduce) { .plate img, .btn-line, .chip, .cal .day { transition: none; } }