/* ===========================
   FORTH Sapporo — すすきののポーカーラウンジ（旧 一隅）
   lp-studio / samples / forth-sapporo
   新ゴールド標準（2026-05-19 再構築）
   方針: 画像に依存せずタイポ＋暗トーン＋グレインで高級感。
         KPI バー廃止＝来歴ストリップ。地図は本物の Google Maps。
=========================== */

/* ── トークン ──
   配色は FORTH の実ポーカーテーブル（images/table.jpg）由来：
   青緑〜水色のフェルト = --water 系、卓に描かれた錦鯉の朱 = --koi 系。
   ドクトリン: ポーカールーム LP の配色はその店の実テーブル/店内色から導く（CLAUDE.md §2.7.1） */
:root {
  color-scheme: dark;

  --ink:      #121a1b;          /* 池の暗がり（やや青緑寄りの黒） */
  --bg:       #16201f;
  --sur1:     #1c2827;
  --sur2:     #243130;
  --paper:    #f0e8d5;
  --paper-dim:#cdc1a6;
  --water:    #2f6f66;          /* テーブルフェルトの青緑＝水色シグネチャ */
  --water-lt: #5fb0a2;          /* 明るい水色（アクセント・判読用） */
  --koi:      #cf4a2c;          /* 卓の錦鯉の朱（authentic な差し色＝本体の温度源） */
  --koi-lt:   #ea7a4f;
  /* 後方互換エイリアス（既存ルールが --copper を参照）＝錦鯉の朱に統一 */
  --copper:   #cf4a2c;
  --copper-lt:#ea7a4f;
  --moss:     #8aaa62;
  --muted:    #9a8c74;
  --void:     #0d1413;

  --border:   rgba(95,176,162,0.18);   /* 構造線は淡い水色＝池の質感 */
  --ripple:   rgba(95,176,162,0.40);

  /* amber — pricing border / hover fill（copper とは別の金黄色） */
  --amber:       #b9894a;
  --amber-07:    rgba(185,137,74,0.07);
  --amber-14:    rgba(185,137,74,0.14);
  --amber-22:    rgba(185,137,74,0.22);
  --amber-40:    rgba(185,137,74,0.40);
  /* pill カラー用セミトランスペアレント値 */
  --water-dk-35: rgba(42,74,92,0.35);
  --water-dk-40: rgba(42,74,92,0.40);
  --olive-30:    rgba(74,94,50,0.30);
  --olive-45:    rgba(74,94,50,0.45);
  --warm-dk-25:  rgba(60,50,40,0.25);

  --radius:   2px;
  /* z-index スケール（6 段名前付き） */
  --z-grain:  50;
  --z-nav:    30;
  --z-sample: 100;
}

/* ── リセット ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  background: var(--ink);
  color: var(--paper);
  line-height: 1.75;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3 { font-weight: inherit; }

/* ── 和紙グレイン（固定オーバーレイ） ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: var(--z-grain);
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='washi'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23washi)' opacity='0.045'/%3E%3C/svg%3E");
}

/* ── サンプルバー ── */
.sample-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-sample);
  background: rgba(14,12,10,0.9);
  border-bottom: 1px solid var(--copper);
  text-align: center;
  padding: 7px 16px;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--copper-lt);
}

/* ── ナビ ── */
.nav {
  position: fixed;
  top: 36px; left: 0; right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 48px;
  background: rgba(20,24,28,0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.4s ease, padding 0.4s ease;
}
.nav.scrolled { background: rgba(14,16,18,0.96); padding: 10px 48px; }
.nav-logo {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--paper);
}
.nav-logo span {
  display: block;
  font-size: 0.5rem;
  letter-spacing: 0.45em;
  color: var(--copper-lt);
  margin-top: 2px;
}
.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--paper-dim);
  transition: color 0.25s;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--copper-lt); }
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span { display: block; width: 24px; height: 1px; background: var(--paper); transition: transform 0.4s ease; }
:focus-visible { outline: 1px solid var(--copper-lt); outline-offset: 3px; }

/* ── ヒーロー（画像なし・CSS のみで暗い水面） ── */
/* ヒーローのみ上品・高級（錦鯉の池の実写＋波紋）。系譜以降は温かい register */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #0d1413;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('images/hero-bg.jpg') center 42% / cover no-repeat;
  filter: brightness(0.5) saturate(0.92) contrast(1.02);
  transform: scale(1.06);
  transition: transform 14s ease-out, filter 1.4s ease;
}
.hero-bg.loaded { transform: scale(1.0); }
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 75% 60% at 50% 42%, transparent 0%, rgba(13,20,19,0.55) 78%),
    linear-gradient(to bottom, rgba(13,20,19,0.55) 0%, rgba(13,20,19,0.15) 38%, rgba(13,20,19,0.78) 100%);
  pointer-events: none;
}
.ripple-container { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
/* 中心光点：波紋の発生源を視覚的に示す */
.ripple-source {
  position: absolute;
  top: 60%; left: 50%;
  transform: translate(-50%,-50%);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(95,176,162,0.85);
  box-shadow: 0 0 14px 4px rgba(95,176,162,0.5);
  animation: sourcePulse 4s ease-in-out infinite;
}
@keyframes sourcePulse {
  0%, 100% { opacity: 0.85; transform: translate(-50%,-50%) scale(1); }
  50%       { opacity: 0.3;  transform: translate(-50%,-50%) scale(0.5); }
}
.ripple-ring {
  position: absolute;
  top: 60%; left: 50%;
  transform: translate(-50%,-50%) scale(0.04);
  width: 500px; height: 500px;
  border-radius: 50%;
  border: 2px solid rgba(95,176,162,1);
  opacity: 0;
  /* 5.5s = 0.45s(ペア間隔) + 5.05s(休止)。2本でタタン→長い間を繰り返す */
  animation: waterRipple 5.5s cubic-bezier(0.08,0,0.75,1) infinite;
}
.ripple-ring--b { animation-delay: 0.45s; }
@keyframes waterRipple {
  0%   { transform: translate(-50%,-50%) scale(0.04); opacity: 1;    border-color: rgba(95,176,162,0.9); }
  25%  {                                               opacity: 0.6; }
  100% { transform: translate(-50%,-50%) scale(8);    opacity: 0;   border-color: rgba(95,176,162,0.05); }
}
.hero-content {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  gap: 40px;
  padding: 0 48px;
  max-width: 1100px;
  width: 100%;
}
.hero-kanji {
  writing-mode: vertical-rl;
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  color: var(--paper);
  letter-spacing: -0.05em;
  line-height: 0.9;
  text-shadow: 0 0 80px rgba(42,74,92,0.5), 0 0 120px rgba(42,74,92,0.25);
}
.hero-text { display: flex; flex-direction: column; justify-content: center; padding-top: 24px; }
.hero-en {
  font-size: 0.62rem;
  letter-spacing: 0.5em;
  color: var(--copper-lt);
  margin-bottom: 16px;
}
.hero-name {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}
/* 現名 FORTH が主、旧名「一隅」は縦書きの控えめなアクセント */
.hero-forth {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--paper);
  line-height: 1;
  text-shadow: 0 0 40px rgba(95,176,162,0.35), 0 0 90px rgba(13,20,19,0.6);
}
.hero-old {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(0.72rem, 1.5vw, 0.92rem);
  font-weight: 400;
  letter-spacing: 0.26em;
  color: var(--paper-dim);
}
.hero-divider { width: 40px; height: 1px; background: var(--copper); margin-bottom: 28px; }
.hero-tagline {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  font-weight: 300;
  color: var(--paper-dim);
  letter-spacing: 0.12em;
  line-height: 2;
  margin-bottom: 32px;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 32px;
  border: 1px solid var(--copper);
  color: var(--copper-lt);
  font-size: 0.7rem;
  letter-spacing: 0.38em;
  transition: background-color 0.35s ease, color 0.35s ease;
  border-radius: var(--radius);
  align-self: flex-start;
}
.hero-cta::after { content: '→'; transition: transform 0.3s; }
.hero-scroll {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.58rem;
  letter-spacing: 0.4em;
  color: var(--muted);
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--copper), transparent);
  animation: scrollDrop 2s ease-in-out infinite;
}
@keyframes scrollDrop {
  0%,100% { transform: scaleY(1); opacity: 1; }
  50%     { transform: scaleY(0.5); opacity: 0.4; }
}

/* ── 系譜ストリップ（KPI バーの代替） ── */
.lineage {
  background: var(--void);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 44px 48px;
  text-align: center;
}
.lineage-main {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1rem, 2.4vw, 1.5rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--paper);
  line-height: 1.9;
}
.lineage-sub {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(0.74rem, 1.4vw, 0.9rem);
  font-weight: 300;
  letter-spacing: 0.14em;
  color: var(--copper-lt);
  margin-top: 14px;
}

/* ── 巻物（section 共通） ── */
section { padding: 100px 0; }
#pricing, #events { padding: 80px 0; }
.section-inner { max-width: 1100px; margin: 0 auto; padding: 0 48px; }
.section-head { display: flex; align-items: flex-start; gap: 24px; margin-bottom: 60px; }
.kigo-num {
  writing-mode: vertical-rl;
  font-family: 'Noto Serif JP', serif;
  font-size: 0.62rem;
  letter-spacing: 0.45em;
  color: var(--copper-lt);
  border-left: 1px solid var(--copper);
  padding-left: 8px;
  flex-shrink: 0;
}
.section-titles { display: flex; flex-direction: column; gap: 6px; }
.section-en { font-size: 0.55rem; letter-spacing: 0.42em; color: var(--muted); }
.section-ja {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--paper);
  letter-spacing: 0.1em;
}

/* 区切り線 */
.divider {
  display: flex; align-items: center; gap: 16px;
  margin: 60px 0; color: var(--copper-lt); font-size: 0.7rem;
}
.divider::before, .divider::after {
  content: ''; flex: 1; height: 1px;
  background: linear-gradient(to right, transparent, var(--copper), transparent);
}

/* 共通リード文 */
.lead-note {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.92rem;
  color: var(--paper-dim);
  line-height: 2.2;
  letter-spacing: 0.08em;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

/* ── CONCEPT（壱）：画像なしテキストカード ── */
#concept { background: var(--bg); }
.concept-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.pillar-card {
  position: relative;
  background: var(--sur1);
  border: 1px solid var(--border);
  padding: 44px 32px 40px;
  overflow: hidden;
}
.pillar-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s;
}
.pillar-num {
  writing-mode: vertical-rl;
  position: absolute;
  top: 32px; right: 26px;
  font-family: 'Noto Serif JP', serif;
  font-size: 0.6rem;
  letter-spacing: 0.5em;
  color: var(--copper-lt);
}
.pillar-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--paper);
  margin: 8px 0 16px;
}
.pillar-text {
  font-size: 0.74rem;
  color: var(--paper-dim);
  line-height: 2;
  letter-spacing: 0.05em;
}

/* ── PRICING（弐） ── */
#pricing { background: var(--ink); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.pricing-card {
  background: var(--sur1);
  border: 1px solid var(--border);
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
  transition: background-color 0.35s ease;
}
.pricing-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--copper);
  transform: scaleX(0);
  transition: transform 0.4s;
}
.pricing-tag { font-size: 0.55rem; letter-spacing: 0.4em; color: var(--copper-lt); margin-bottom: 20px; }
.pricing-name {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--paper);
  margin-bottom: 8px;
}
.pricing-price {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--copper-lt);
  margin-bottom: 4px;
}
.price-unit { font-size: 0.45em; color: var(--muted); }
.pricing-note { font-size: 0.66rem; color: var(--muted); margin-bottom: 24px; }
.pricing-divider { width: 100%; height: 1px; background: var(--border); margin-bottom: 24px; }
.pricing-list li {
  font-size: 0.7rem;
  color: var(--paper-dim);
  padding: 6px 0;
  border-bottom: 1px solid var(--amber-07);
  letter-spacing: 0.05em;
}
.pricing-list li::before { content: '◇ '; color: var(--copper-lt); font-size: 0.5em; }
.ring-note {
  margin-top: 32px;
  font-size: 0.74rem;
  color: var(--paper-dim);
  line-height: 1.9;
  letter-spacing: 0.05em;
  border-top: 1px solid var(--copper);
  border-left: none;
  padding: 18px 0 0;
}

/* ── EVENTS（参） ── */
#events { background: var(--bg); }
.event-list { display: flex; flex-direction: column; gap: 2px; }
.event-row {
  display: grid;
  grid-template-columns: 160px 1fr auto;
  background: var(--sur1);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: background-color 0.35s ease, border-color 0.35s ease;
}
.event-badge {
  background: var(--sur2);
  border-right: 1px solid var(--border);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.event-day-vert {
  writing-mode: vertical-rl;
  font-family: 'Noto Serif JP', serif;
  font-size: 0.62rem;
  letter-spacing: 0.4em;
  color: var(--copper-lt);
}
.event-time { font-family: 'Noto Serif JP', serif; font-size: 1rem; color: var(--copper-lt); letter-spacing: 0.05em; }
.event-body { padding: 24px 32px; display: flex; flex-direction: column; justify-content: center; }
.event-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--paper);
  margin-bottom: 6px;
}
.event-desc { font-size: 0.7rem; color: var(--paper-dim); letter-spacing: 0.05em; line-height: 1.8; }
.event-tag { padding: 24px 20px; display: flex; align-items: center; justify-content: center; }
.tag-pill {
  padding: 6px 16px;
  border: 1px solid var(--copper);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--copper-lt);
  border-radius: 1px;
  white-space: nowrap;
}

/* ── ACCESS（四） ── */
#access { background: var(--ink); }
.access-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.map-wrap {
  border: 1px solid var(--border);
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4/3;
}
/* 本物の Google マップを見慣れた見た目で（重いフィルタは掛けない、軽い減光のみ） */
.map-wrap iframe { width: 100%; height: 100%; border: none; filter: brightness(0.94); }
.access-info { display: flex; flex-direction: column; gap: 28px; }
.access-label { font-size: 0.55rem; letter-spacing: 0.4em; color: var(--copper-lt); margin-bottom: 8px; }
.access-val {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.9rem;
  color: var(--paper);
  line-height: 1.85;
  letter-spacing: 0.05em;
}
.access-note { font-size: 0.66rem; color: var(--muted); margin-top: 6px; }

/* 週間スケジュール */
.schedule-wrap { margin-top: 56px; }
.schedule-label { font-size: 0.55rem; letter-spacing: 0.4em; color: var(--copper-lt); margin-bottom: 16px; }
.schedule-week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.schedule-day {
  background: var(--sur1);
  border: 1px solid var(--border);
  padding: 12px 8px;
  text-align: center;
  border-radius: var(--radius);
  min-height: 86px;
}
.schedule-day.closed { opacity: 0.45; }
.schedule-day.event { border-color: rgba(185,137,74,0.5); }
.day-name { font-size: 0.62rem; color: var(--paper-dim); letter-spacing: 0.2em; display: block; margin-bottom: 8px; }
.day-events { display: flex; flex-direction: column; gap: 4px; }
.day-pill {
  font-size: 0.52rem;
  padding: 3px 6px;
  border-radius: 1px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pill-regular { background: var(--water-dk-35); color: var(--water-lt); border: 1px solid var(--water-dk-40); }
.pill-event   { background: var(--amber-22); color: var(--copper-lt); border: 1px solid var(--amber-40); }
.pill-free    { background: var(--olive-30); color: var(--moss); border: 1px solid var(--olive-45); }
.pill-closed  { background: var(--warm-dk-25); color: var(--muted); border: 1px solid var(--border); }
.schedule-foot { margin-top: 14px; font-size: 0.62rem; color: var(--muted); letter-spacing: 0.05em; }

/* ── RECRUIT（五） ── */
#recruit { background: var(--bg); border-top: 1px solid var(--border); }
.recruit-tagline {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.92rem;
  color: var(--paper-dim);
  line-height: 2.2;
  letter-spacing: 0.08em;
  margin-bottom: 40px;
}
.recruit-table {
  background: var(--sur1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 680px;
}
.recruit-row { display: grid; grid-template-columns: 160px 1fr; border-bottom: 1px solid var(--border); }
.recruit-row:last-child { border-bottom: none; }
.recruit-label {
  background: var(--ink);
  padding: 18px 20px;
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  color: var(--copper-lt);
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
}
.recruit-val {
  padding: 18px 24px;
  font-size: 0.8rem;
  color: var(--paper);
  line-height: 1.9;
  letter-spacing: 0.05em;
}
.recruit-val a { color: var(--copper-lt); text-decoration: underline; text-underline-offset: 3px; }

/* ── CONTACT（六） ── */
#contact { background: var(--bg); }
.contact-intro {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.92rem;
  color: var(--paper-dim);
  line-height: 2.2;
  letter-spacing: 0.08em;
  margin-bottom: 36px;
  max-width: 560px;
}
.contact-x { margin-bottom: 44px; }
.contact-x-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 36px;
  background: var(--sur1);
  border: 1px solid var(--copper);
  border-radius: var(--radius);
  color: var(--paper);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  transition: background-color 0.35s ease, color 0.35s ease;
}
.contact-x-link svg { color: var(--copper-lt); flex-shrink: 0; }
.contact-form-wrap {
  background: var(--sur1);
  border: 1px solid var(--border);
  padding: 48px;
  border-radius: var(--radius);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.62rem; letter-spacing: 0.28em; color: var(--paper-dim); }
.form-group input,
.form-group textarea,
.form-group select {
  background: var(--sur2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--paper);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.82rem;
  transition: border-color 0.25s;
  width: 100%;
}
.form-group input:focus-visible,
.form-group textarea:focus-visible,
.form-group select:focus-visible { outline: 1px solid var(--copper-lt); outline-offset: 2px; border-color: var(--copper-lt); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-full { grid-column: 1 / -1; }
.btn-submit {
  padding: 14px 48px;
  background: transparent;
  border: 1px solid var(--copper);
  color: var(--copper-lt);
  font-size: 0.7rem;
  letter-spacing: 0.38em;
  font-family: 'Noto Sans JP', sans-serif;
  cursor: pointer;
  transition: background-color 0.35s ease, color 0.35s ease;
  border-radius: var(--radius);
}

/* ── フッター ── */
footer { background: var(--void); border-top: 1px solid var(--border); padding: 48px; text-align: center; }
.footer-logo {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--paper);
  margin-bottom: 8px;
}
.footer-sub { font-size: 0.55rem; letter-spacing: 0.42em; color: var(--muted); margin-bottom: 24px; }
.footer-copy { font-size: 0.62rem; color: var(--paper-dim); letter-spacing: 0.12em; }
.footer-kicker { margin-top: 16px; font-size: 0.54rem; color: var(--muted); letter-spacing: 0.2em; }

/* ── スクロールリビール ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.revealed { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── 装飾ホバーは hover 可能デバイスのみ（タッチ張り付き防止） ── */
@media (hover: hover) {
  .nav-links a:hover { color: var(--copper-lt); }
  .hero-cta:hover { background: var(--amber-14); color: var(--paper); }
  .hero-cta:hover::after { transform: translateX(4px); }
  .pillar-card:hover { background: var(--sur2); }
  .pillar-card:hover::before { transform: scaleX(1); }
  .pricing-card:hover { background: var(--sur2); }
  .pricing-card:hover::before { transform: scaleX(1); }
  .event-row:hover { background: var(--sur2); border-color: var(--amber-40); }
  .contact-x-link:hover { background: var(--sur2); color: #fff; }
  .btn-submit:hover { background: var(--amber-14); color: var(--paper); }
}

/* ── reduced-motion 対応 ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .ripple-ring, .ripple-source, .scroll-line { animation: none !important; }
  .ripple-container { display: none; }
  * { transition-duration: 0.001s !important; }
}

/* ── レスポンシブ ── */
@media (max-width: 900px) {
  .nav { padding: 12px 24px; }
  .nav.scrolled { padding: 9px 24px; }
  .nav-links { display: none; flex-direction: column; gap: 0; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(14,16,18,0.98);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
  }
  .nav-links.open a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .burger { display: flex; }
  .hero-content { flex-direction: column; align-items: center; text-align: center; padding: 120px 24px 0; }
  .hero-kanji { writing-mode: horizontal-tb; font-size: clamp(2.2rem, 9vw, 3.4rem); }
  .hero-cta { align-self: center; }
  .lineage { padding: 36px 24px; }
  section { padding: 64px 0; }
  .section-inner { padding: 0 24px; }
  .concept-grid { grid-template-columns: 1fr; }
  .pillar-num { position: static; writing-mode: horizontal-tb; margin-bottom: 8px; }
  .pricing-grid { grid-template-columns: 1fr; gap: 16px; }
  .event-row { grid-template-columns: 110px 1fr; }
  .event-tag { display: none; }
  .access-grid { grid-template-columns: 1fr; }
  .schedule-week { grid-template-columns: repeat(4, 1fr); }
  .recruit-row { grid-template-columns: 110px 1fr; }
  .recruit-label { padding: 14px 12px; font-size: 0.55rem; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 24px; }
  footer { padding: 32px 24px; }
  .hero-scroll { display: none; }
}
@media (max-width: 480px) {
  .schedule-week { grid-template-columns: repeat(2, 1fr); }
}