/* 己書 有楽人道場
   デザインの考え方: 丸みのある、やわらかい教室。淡い桜色のヘッダー、桜から藤へのグラデーションの帯、
   角の大きく丸い白いパネルに内容をまとめる。色は桜から藤へ。ロゴは先生の筆文字の画像、キャッチコピーは Yuji Syuku。
   色と書体はすべて下のトークンで管理する。 */

:root {
  --bg-a: #fbf1f1;          /* 背景の左側(淡い桜) */
  --bg-b: #f1eef5;          /* 背景の右側(淡い藤) */
  --band: #f7e4e6;          /* ヘッダーの桜色 */
  --panel: #ffffff;         /* 白いパネル */
  --soft: #fbf3f4;          /* 写真の仮置き・薄い面 */
  --mint: #fcf6f7;          /* メニューの背景 */
  --ink: #46393d;           /* 文字(真っ黒にしない) */
  --ink-soft: #76666b;
  --line: #ecdde0;
  --g1: #c97b8b;            /* グラデーション: 桜 */
  --g2: #9a7fa6;            /* グラデーション: 藤 */
  --on-g: #ffffff;
  --accent: #8c5a74;        /* リンクとアイコン */
  --focus: #7d5f8f;

  --grad: linear-gradient(90deg, var(--g1), var(--g2));
  --r-panel: 40px;
  --r-card: 24px;
  --r-pill: 999px;

  --font-body: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --font-brush: "Yuji Syuku", "Hiragino Mincho ProN", "Yu Mincho", serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-a: #1c1719;
    --bg-b: #18161c;
    --band: #2e2226;
    --panel: #251e21;
    --soft: #2e2529;
    --mint: #1d181b;
    --ink: #f1e8ea;
    --ink-soft: #c2b2b7;
    --line: #3d3236;
    --g1: #b16a7b;
    --g2: #84699a;
    --on-g: #ffffff;
    --accent: #e7a9b8;
    --focus: #e7a9b8;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg-a: #1c1719;
  --bg-b: #18161c;
  --band: #2e2226;
  --panel: #251e21;
  --soft: #2e2529;
  --mint: #1d181b;
  --ink: #f1e8ea;
  --ink-soft: #c2b2b7;
  --line: #3d3236;
  --g1: #b16a7b;
  --g2: #84699a;
  --on-g: #ffffff;
  --accent: #e7a9b8;
  --focus: #e7a9b8;
  color-scheme: dark;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: linear-gradient(90deg, var(--bg-a), var(--bg-b)) fixed;
  background-color: var(--bg-a);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.95;
  letter-spacing: 0.04em;
}
body.menu-open { overflow: hidden; }

img, svg { max-width: 100%; }

a { color: var(--accent); text-underline-offset: 0.25em; }
a:hover { color: var(--g1); }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 8px; }

h1, h2, h3 {
  font-family: var(--font-body);
  font-weight: 700;
  line-height: 1.55;
  text-wrap: balance;
  margin: 0;
}

p { margin: 0 0 1em; }

.wrap {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

/* ---------- ヘッダー ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  background: var(--band);
  z-index: 30;
}

.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 20;
  background: var(--band);
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 10px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  min-width: 0;
}
.brand:hover { color: var(--ink); }

/* 筆文字ロゴ: 画像の形で切り抜き、文字色(--ink)で塗る。明るい背景でも暗い背景でも同じ画像で使える */
.logo {
  display: block;
  height: 64px;
  aspect-ratio: 655 / 720;
  background: var(--ink);
  -webkit-mask: url("../img/logo.png") center / contain no-repeat;
  mask: url("../img/logo.png") center / contain no-repeat;
}
.brand-tag {
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  white-space: nowrap;
}
.foot-top .logo { height: 96px; }
.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;
}
@media (min-width: 960px) { .logo { height: 72px; } }

.menu-btn {
  flex: none;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border: 0;
  border-radius: 50%;
  background: var(--grad);
  color: var(--on-g);
  cursor: pointer;
}
.menu-btn svg { width: 24px; height: 24px; }

/* スマホのメニュー: 全画面に大きく並べる */
.site-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  overflow-y: auto;
  background: var(--mint);
  padding: calc(env(safe-area-inset-top, 0px) + 20px) max(24px, env(safe-area-inset-right, 0px)) calc(env(safe-area-inset-bottom, 0px) + 40px) max(24px, env(safe-area-inset-left, 0px));
}
.site-nav.open { display: block; }

.nav-inner {
  max-width: 440px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  text-align: center;
}

.menu-close {
  align-self: flex-end;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 12px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
}
.menu-close svg { width: 30px; height: 30px; }

.nav-main { display: flex; flex-direction: column; gap: 4px; margin-bottom: 28px; }
.nav-main a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.1em;
  padding: 12px 0;
  border-radius: var(--r-pill);
}
.nav-main a:hover { background: var(--panel); color: var(--ink); }
.nav-main a[aria-current="page"] { color: var(--accent); }

.nav-extra { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.nav-extra .btn { width: 100%; }
.nav-extra .btn-white { width: min(100%, 320px); }
.nav-sub { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 24px; margin-top: 16px; }
.nav-sub a { color: var(--ink-soft); font-size: 15px; font-weight: 700; text-decoration: none; }

.site-nav .nav-reserve { display: none; }

@media (min-width: 960px) {
  .menu-btn, .menu-close, .nav-extra { display: none !important; }
  .site-nav {
    display: flex;
    position: static;
    inset: auto;
    overflow: visible;
    background: transparent;
    padding: 0;
  }
  .nav-inner { max-width: none; flex-direction: row; align-items: center; gap: 28px; }
  .nav-main { flex-direction: row; gap: 4px; margin: 0; }
  .nav-main a { font-size: 15px; padding: 8px 14px; }
  .nav-main a[href$="index.html"]:first-child { display: none; }
  .site-nav .nav-reserve { display: inline-flex; }
}

/* ---------- ボタン ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 60px;
  padding: 0 40px;
  background: var(--grad);
  color: var(--on-g);
  border: 0;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-align: center;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { color: var(--on-g); transform: translateY(-2px); box-shadow: 0 8px 20px -10px var(--g2); }
.btn .arrow { width: 22px; height: 22px; flex: none; }
.btn-small { min-height: 46px; padding: 0 24px; font-size: 15px; }
.btn-white {
  background: var(--panel);
  color: var(--accent);
  border-radius: 16px;
}
.btn-white:hover { color: var(--accent); }
.btn-white svg { width: 26px; height: 26px; flex: none; }

/* ---------- 写真の仮置き ---------- */
.ph {
  position: relative;
  margin: 0;
  overflow: hidden;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 12px;
  background: var(--soft);
  border-radius: var(--r-card);
  color: var(--ink-soft);
  text-align: center;
}
.ph .enso { width: 34%; max-width: 140px; color: var(--g1); opacity: 0.55; }
.ph figcaption { font-size: 13px; padding: 0 16px; }
.ph img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* ---------- トップの最初の画面 ---------- */
.hero { position: relative; }
.hero-ph {
  border-radius: 0;
  aspect-ratio: 4 / 5;
  max-height: 78vh;
  width: 100%;
  align-content: end;
  padding-bottom: 28px;
}
.hero-pills {
  position: absolute;
  left: 0;
  right: 0;
  top: 18%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  margin: 0;
}
.hero-pills span {
  display: inline-block;
  background: var(--grad);
  color: var(--on-g);
  font-family: var(--font-brush);
  font-size: clamp(26px, 7.4vw, 44px);
  line-height: 1.35;
  letter-spacing: 0.14em;
  padding: 10px 30px 10px 26px;
  border-radius: var(--r-pill);
  box-shadow: 0 10px 24px -14px rgba(0, 0, 0, .45);
}
@media (min-width: 860px) {
  .hero-ph { aspect-ratio: 16 / 8; }
  .hero-pills { top: 26%; }
}

.news-line { padding-block: 40px 8px; }
.news-line a {
  display: grid;
  gap: 2px;
  color: var(--ink);
  text-decoration: none;
  max-width: 760px;
  margin-inline: auto;
}
.news-line time { color: var(--ink-soft); font-size: 14px; font-variant-numeric: tabular-nums; }
.news-line span { font-size: 18px; }
.news-line a:hover span { color: var(--accent); }

.intro { padding-block: 32px 8px; text-align: center; }
.intro .role { font-size: 14px; color: var(--ink-soft); margin-bottom: 8px; }
.intro h1 { font-size: clamp(22px, 5vw, 30px); margin-bottom: 16px; }
.intro p { max-width: 32em; margin-inline: auto; }

/* ---------- 白いパネルと、丸い帯の見出し ---------- */
.section { padding-block: 28px; }
.panel {
  background: var(--panel);
  border-radius: var(--r-panel);
  padding: 0 0 clamp(32px, 6vw, 56px);
  overflow: hidden;
}
.panel-body { padding-inline: clamp(22px, 6vw, 64px); }

.pill-title {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 92px;
  margin: 0 0 clamp(28px, 5vw, 44px);
  padding: 16px 24px;
  background: var(--grad);
  color: var(--on-g);
  border-radius: var(--r-pill);
  font-size: clamp(22px, 5.4vw, 30px);
  letter-spacing: 0.18em;
  text-align: center;
}

.panel-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 32px; }
.more-link { display: flex; justify-content: flex-end; margin-top: 20px; }
.more-link a { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; text-decoration: none; }
.more-link svg { width: 20px; height: 20px; }

.note { font-size: 14px; color: var(--ink-soft); }

/* 幸座の日程 */
.koza-list { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 12px; }
.koza-row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 12px 20px 12px 12px;
  background: var(--soft);
  border-radius: var(--r-card);
}
.koza-date {
  display: grid;
  place-items: center;
  align-content: center;
  aspect-ratio: 1 / 1;
  background: var(--panel);
  border-radius: 50%;
  line-height: 1.15;
}
.koza-date .m { font-size: 12px; color: var(--ink-soft); }
.koza-date .d { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
.koza-date .w { font-size: 12px; color: var(--accent); font-weight: 700; }
.koza-info h3 { font-size: 18px; margin-bottom: 2px; }
.koza-info p { margin: 0; font-size: 14px; color: var(--ink-soft); }

/* ブログ一覧 */
.post-list { list-style: none; margin: 0; padding: 0; }
.post-row { border-bottom: 1px solid var(--line); }
.post-row:first-child { border-top: 1px solid var(--line); }
.post-row a { display: grid; gap: 2px 28px; padding: 22px 4px; color: var(--ink); text-decoration: none; }
.post-row time { font-size: 14px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.post-row h3 { font-size: 18px; }
.post-row p { margin: 4px 0 0; color: var(--ink-soft); font-size: 15px; }
.post-row a:hover h3 { color: var(--accent); }
@media (min-width: 720px) {
  .post-row a { grid-template-columns: 120px minmax(0, 1fr); }
}

/* はじめての方へ */
.steps { list-style: none; counter-reset: step; margin: 0 0 8px; padding: 0; display: grid; gap: 16px; }
.steps li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px;
  background: var(--soft);
  border-radius: var(--r-card);
}
.steps li::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--grad);
  color: var(--on-g);
  font-size: 22px;
  font-weight: 700;
}
.steps h3 { font-size: 18px; margin-bottom: 2px; }
.steps p { margin: 0; color: var(--ink-soft); font-size: 15px; }
@media (min-width: 860px) {
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .steps li { grid-template-columns: 1fr; justify-items: center; text-align: center; }
}

/* 作品 */
.gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.gallery .ph { aspect-ratio: 1 / 1; }
.gallery .g3 { aspect-ratio: 16 / 9; grid-column: span 2; }
@media (min-width: 720px) {
  .gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .gallery .g3 { grid-column: auto; aspect-ratio: 1 / 1; }
}

/* 横並びのカード(LINE、教室紹介など) */
.split {
  display: grid;
  overflow: hidden;
  border-radius: var(--r-card);
  background: var(--panel);
}
.split .ph { border-radius: 0; aspect-ratio: 16 / 10; }
.split-body {
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 28px;
  background: var(--g2);
  color: var(--on-g);
}
.split-body h2 { font-size: 22px; letter-spacing: 0.14em; }
.split-body p { margin: 0; }
.split-body .btn { justify-self: start; margin-top: 8px; }
.split-body .btn-white { color: var(--g2); border-radius: var(--r-pill); }
@media (min-width: 720px) {
  .split { grid-template-columns: 1fr 1fr; }
  .split .ph { aspect-ratio: auto; min-height: 260px; }
}

/* ---------- 下層ページ ---------- */
.page-top { padding-top: 36px; }
.narrow { max-width: 820px; }
.prose-grid { display: grid; gap: 32px; align-items: start; }
.portrait { aspect-ratio: 4 / 5; width: 100%; max-width: 380px; margin-inline: auto; }
@media (min-width: 860px) {
  .prose-grid { grid-template-columns: 5fr 7fr; gap: 56px; }
}
.prose h2 { font-size: 21px; margin: 1.8em 0 0.6em; }
.prose h2:first-child { margin-top: 0; }

.venue-grid { list-style: none; margin: 0 0 20px; padding: 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); }
.venue { background: var(--soft); border-radius: var(--r-card); padding: 22px; min-width: 0; }
.v-area {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--on-g);
  background: var(--grad);
  border-radius: var(--r-pill);
  padding: 2px 12px;
  margin-bottom: 10px;
}
.venue h3 { font-size: 19px; margin-bottom: 6px; }
.v-place { margin-bottom: 2px; font-size: 15px; }
.v-muted { color: var(--ink-soft); }
.v-station { margin: 0; font-size: 14px; color: var(--ink-soft); }

.contact { margin: 0; }
.contact div { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 12px; padding: 18px 4px; border-bottom: 1px solid var(--line); }
.contact div:first-child { border-top: 1px solid var(--line); }
.contact dt { color: var(--ink-soft); font-size: 14px; font-weight: 700; }
.contact dd { margin: 0; overflow-wrap: anywhere; }

.crumb { font-size: 14px; margin-bottom: 16px; }
.post-title { font-size: clamp(22px, 5vw, 32px); margin-bottom: 6px; }
.post-date { display: block; color: var(--ink-soft); font-size: 14px; margin-bottom: 28px; }
.post-ph { aspect-ratio: 16 / 9; width: 100%; margin-bottom: 32px; }
.back { margin-top: 40px; }

/* ---------- フッター ---------- */
.site-footer { margin-top: 48px; }
.foot-top { background: var(--panel); padding-block: 40px; }
.foot-top-inner { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 28px; }
.foot-quick { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; justify-items: end; }
.foot-quick a { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; text-decoration: none; letter-spacing: 0.1em; }
.foot-quick a:hover { color: var(--accent); }
.foot-quick svg { width: 24px; height: 24px; color: var(--ink-soft); }

.foot-band {
  background: var(--grad);
  color: var(--on-g);
  padding-top: 40px;
  padding-bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  text-align: center;
}
.foot-nav { list-style: none; margin: 0 0 24px; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 28px; }
.foot-nav a { color: var(--on-g); font-weight: 700; font-size: 16px; letter-spacing: 0.14em; text-decoration: none; }
.foot-nav a:hover { text-decoration: underline; color: var(--on-g); }
.foot-band p { margin: 0 0 6px; font-size: 14px; }
.foot-band small { display: block; margin-top: 16px; font-size: 12px; opacity: 0.9; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- 先生のこと ---------- */
.intro .face {
  display: block;
  width: 120px;
  height: 120px;
  margin: 0 auto 16px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--panel);
}

.sensei { display: grid; gap: 32px; align-items: start; }
.sensei-visual { display: flex; align-items: flex-start; gap: 14px; justify-content: center; }
.sensei-photo {
  display: block;
  width: min(100%, 360px);
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--r-card);
}
.sensei-role { font-size: 14px; color: var(--ink-soft); margin-bottom: 2px; }
.sensei-name { font-size: 26px; font-weight: 700; letter-spacing: 0.14em; margin-bottom: 12px; }
@media (min-width: 860px) {
  .sensei { grid-template-columns: 5fr 6fr; gap: 56px; }
}

/* ---------- Instagram ---------- */
.insta-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .insta-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1040px) { .insta-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.insta-grid .instagram-media,
.insta-grid iframe {
  min-width: 0 !important;
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 !important;
  border-radius: var(--r-card) !important;
}
.insta-empty { grid-column: 1 / -1; display: grid; justify-items: center; gap: 14px; padding: 12px 0; text-align: center; }
.insta-empty p { margin: 0; color: var(--ink-soft); }
.insta-card {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 6px;
  min-height: 160px;
  padding: 20px;
  background: var(--soft);
  border-radius: var(--r-card);
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  text-align: center;
}

/* 会場の住所と地図リンク */
.v-addr { margin: 0 0 2px; font-size: 14px; }
.v-maps { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.v-map {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 0 16px 0 12px;
  background: var(--panel);
  color: var(--accent);
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.v-map:hover { color: var(--accent); box-shadow: 0 0 0 2px var(--g1) inset; }
.v-map svg { width: 18px; height: 18px; flex: none; }

/* ---------- トップの作品(描き下ろし) ---------- */
.hero { padding-block: 24px 8px; }
.hero-inner { position: relative; }
.hero-art {
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-card);
  background: var(--soft);
}
.hero-art img { display: block; width: 100%; height: auto; }

/* スマホ: 帯は作品の下に少し重ねる */
.hero .hero-pills {
  position: static;
  margin-top: -26px;
  padding-left: 12px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}
.hero .hero-pills h1 { display: contents; }
.hero .hero-pills span { font-size: clamp(22px, 6.6vw, 30px); padding: 8px 24px 8px 22px; }

/* パソコン: 作品の左の余白に帯を重ねる */
@media (min-width: 860px) {
  .hero-art { border-radius: var(--r-panel); }
  .hero .hero-pills {
    position: absolute;
    top: 13%;
    left: calc(max(16px, env(safe-area-inset-left, 0px)) + 2.5%);
    margin: 0;
    padding: 0;
    gap: 12px;
  }
  .hero .hero-pills span { font-size: clamp(18px, 2.3vw, 26px); padding: 8px 22px 8px 20px; }
}