/* ================================================================
   鍼灸院SAKINO — サイトスタイル
   コンセプト: 生成りの紙 × 蓬色 × 灸の金
   方針: 全年齢対応（大きめ文字・高コントラスト・大きいタップ領域）、文字より図で見せる
================================================================ */

:root {
  --paper: #f8f5ee;        /* 生成り（ベース背景） */
  --paper-2: #fdfcf8;      /* カード背景 */
  --ink: #2b2a24;          /* 墨（本文） */
  --ink-2: #55524a;        /* 補足テキスト */
  --ink-3: #8a867a;        /* 弱い補足 */
  --green: #44573f;        /* 蓬色（アクセント） */
  --green-deep: #2f3e2e;   /* 深蓬（ボタン・フッター） */
  --gold: #8f7132;         /* 灸の金（小さな強調のみ） */
  --gold-soft: #d9c79a;    /* 金の淡色（線・図） */
  --rust: #a0614a;         /* 「しないこと」の印 */
  --line: #e3ddcd;         /* 罫線 */
  --radius: 14px;
  --shadow: 0 4px 24px rgba(43, 42, 36, 0.07);
  --font-serif: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; line-height: 1.5; margin: 0; }
p, ul, ol, dl, figure { margin: 0; }
a { color: inherit; }
svg { display: block; }

:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; border-radius: 4px; }

.pc-only { display: none; }

/* ---------------- お知らせバー ---------------- */

.notice-bar {
  background: var(--green-deep);
  color: #f4f1e6;
  text-align: center;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  padding: 0.55em 1em;
}

/* ---------------- ヘッダー ---------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  background: rgba(248, 245, 238, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 34px; height: 34px; color: var(--green); }
.brand-dot { fill: var(--gold); }
.brand-text { font-family: var(--font-serif); font-size: 1.375rem; letter-spacing: 0.06em; }
.brand-sub { font-size: 0.72em; margin-right: 0.4em; color: var(--ink-2); }

.site-nav { display: none; }
.site-nav a { text-decoration: none; font-size: 0.9375rem; letter-spacing: 0.04em; padding: 0.4em 0.2em; }
.site-nav a:not(.btn):hover { color: var(--green); }

.nav-toggle {
  display: grid;
  place-content: center;
  gap: 7px;
  width: 48px;
  height: 48px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); transition: transform 0.25s ease; }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4.5px) rotate(-45deg); }

.site-nav.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  padding: 12px 20px 20px;
  box-shadow: var(--shadow);
}
.site-nav.is-open a { padding: 0.8em 0.2em; border-bottom: 1px solid var(--line); }
.site-nav.is-open a.btn { margin-top: 14px; border-bottom: none; }

/* ---------------- ボタン ---------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0.6em 1.6em;
  border-radius: 999px;
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.btn:hover { opacity: 0.88; transform: translateY(-1px); }
.btn svg { width: 21px; height: 21px; }
.btn-primary { background: var(--green-deep); color: #fbf9f2; }
.btn-ghost { border: 1.5px solid var(--green-deep); color: var(--green-deep); }
.btn-light { background: #fbf9f2; color: var(--green-deep); }
.nav-cta { min-height: 46px; font-size: 0.9375rem; }

.soon {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  background: var(--line);
  color: var(--ink-2);
  border-radius: 999px;
  padding: 0.1em 0.7em;
  margin-left: 2px;
}

/* ---------------- ヒーロー ---------------- */

.hero { overflow: hidden; }

.hero-inner {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 24px 40px;
  display: flex;
  flex-direction: column-reverse;
  gap: 36px;
}

.hero-visual { position: relative; display: grid; place-items: center; padding: 24px 0; }

/* 円相（ロゴのモチーフ）— 見出しの背景に薄く */
.enso {
  position: absolute;
  width: min(380px, 92vw);
  height: auto;
  color: var(--gold-soft);
  opacity: 0.9;
}
.enso-dot { fill: var(--gold-soft); }

/* 縦書き見出し — このサイトの顔 */
.hero-title {
  position: relative;
  writing-mode: vertical-rl;
  font-size: clamp(1.875rem, 7vw, 2.75rem);
  letter-spacing: 0.16em;
  height: max-content;
  margin: 0 auto;
  color: var(--ink);
}
.hero-title .v-line { display: block; }
.hero-title .v-line + .v-line { margin-block-start: 0.55em; }
.hero-title .v-line:nth-child(2) { padding-top: 1.1em; }
.hero-title .v-line:nth-child(3) { padding-top: 2.2em; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  letter-spacing: 0.1em;
  color: var(--green);
  border: 1px solid var(--green);
  border-radius: 999px;
  padding: 0.35em 1.1em;
  margin-bottom: 22px;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); }

.hero-lead { font-size: 1.125rem; margin-bottom: 14px; }

.hero-tagline {
  font-family: var(--font-serif);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
}
.hero-tagline::before { content: ""; width: 28px; height: 1px; background: var(--gold); flex-shrink: 0; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

/* 3つの約束 */
.proof-strip {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
}
.proof-strip li {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 24px;
  font-weight: 500;
  letter-spacing: 0.03em;
}
.proof-strip li + li { border-top: 1px dashed var(--line); }
.proof-strip svg { width: 28px; height: 28px; color: var(--green); flex-shrink: 0; }

/* ---------------- セクション共通 ---------------- */

.section { max-width: 1080px; margin: 0 auto; padding: 72px 24px; }

.section-alt {
  max-width: none;
  background: var(--paper-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-alt > * { max-width: 1032px; margin-left: auto; margin-right: auto; }

.section-head { margin-bottom: 36px; }

.section-eyebrow {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.9375rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 8px;
}

.section-head h2 {
  font-size: clamp(1.625rem, 4.5vw, 2.125rem);
  letter-spacing: 0.08em;
  position: relative;
  padding-left: 20px;
}
.section-head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.25em;
  bottom: 0.25em;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(var(--gold) 0 22%, var(--green) 22% 100%);
}

.section-lead { color: var(--ink-2); margin-top: 14px; max-width: 640px; }

/* ---------------- こんな不調に ---------------- */

.symptom-grid {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.symptom-grid li {
  display: grid;
  justify-items: center;
  gap: 6px;
  padding: 22px 10px 18px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-align: center;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
}
.symptom-grid .glyph {
  font-family: var(--font-serif);
  font-size: 2.375rem;
  line-height: 1;
  color: var(--green);
  width: 68px;
  height: 68px;
  display: grid;
  place-content: center;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--gold-soft);
}
.symptom-note { margin-top: 26px; color: var(--ink-2); text-align: center; }

/* ---------------- しないこと／すること ---------------- */

.compare { display: grid; gap: 0; }
.compare-row { display: grid; gap: 8px; padding: 20px 0; }
.compare-row + .compare-row { border-top: 1px dashed var(--line); }

.compare p { display: flex; align-items: flex-start; gap: 12px; }
.compare .mark {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-content: center;
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: 500;
  margin-top: 0.15em;
}
.compare .no { color: var(--ink-3); font-size: 1rem; }
.compare .no .mark { border: 1px solid var(--rust); color: var(--rust); }
.compare .yes { font-weight: 500; }
.compare .yes .mark { background: var(--green); color: #fbf9f2; }

/* ---------------- 初回の流れ（図） ---------------- */

.flow {
  list-style: none;
  padding: 0;
  position: relative;
  display: grid;
  gap: 0;
}
.flow li {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  column-gap: 16px;
  padding-bottom: 28px;
}
.flow li::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 52px;
  bottom: 0;
  border-left: 1px dashed var(--gold-soft);
}
.flow li:last-child { padding-bottom: 0; }
.flow li:last-child::before { display: none; }

.flow-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-content: center;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--green);
  color: var(--green);
  grid-row: span 2;
}
.flow-icon svg { width: 26px; height: 26px; }

.flow h3 {
  font-size: 1.125rem;
  letter-spacing: 0.06em;
  padding-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.flow h3 small {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--gold);
  border: 1px solid var(--gold-soft);
  border-radius: 999px;
  padding: 0.1em 0.7em;
}
.flow p { color: var(--ink-2); font-size: 0.9375rem; line-height: 1.7; }

/* 身体の記録（イメージ） */
.record { margin-top: 44px; display: grid; justify-items: center; gap: 16px; }
.record-card {
  width: min(420px, 100%);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  display: grid;
  gap: 10px;
}
.record-title { font-family: var(--font-serif); font-size: 1.125rem; letter-spacing: 0.1em; }
.record-meta { font-size: 0.8125rem; color: var(--ink-3); letter-spacing: 0.08em; margin-top: -6px; }
.record-row { display: grid; grid-template-columns: 7em 1fr; align-items: center; gap: 12px; font-size: 0.875rem; color: var(--ink-2); }
.record-row svg { width: 100%; height: 14px; }
.record-row .track { fill: var(--line); }
.record-row .before { fill: #c9c2ad; }
.record-row .after { fill: var(--green); opacity: 0.85; }
.record-legend { font-size: 0.8125rem; color: var(--ink-2); display: flex; align-items: center; gap: 6px; margin-top: 4px; }
.record-legend i { width: 14px; height: 6px; border-radius: 3px; display: inline-block; }
.lg-before { background: #c9c2ad; }
.lg-after { background: var(--green); }
.record-note {
  margin-top: 6px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 0.875rem;
  color: var(--ink);
}
.record figcaption { font-size: 0.9375rem; color: var(--ink-2); text-align: center; max-width: 520px; }

/* ---------------- 料金 ---------------- */

.price-cards { display: grid; gap: 14px; }
.price-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.price-label { font-size: 1.0625rem; font-weight: 500; letter-spacing: 0.06em; color: var(--green); line-height: 1.4; }
.price-label span { display: block; margin-top: 2px; font-size: 0.75rem; letter-spacing: 0.12em; color: var(--gold); }
.price-desc { font-size: 0.9375rem; color: var(--ink-2); }
.price-rows { margin: 8px 0 0; }
.price-rows > div { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.price-rows > div:last-child { padding-bottom: 0; }
.price-rows dt { display: flex; align-items: center; gap: 8px; font-weight: 500; letter-spacing: 0.06em; }
.price-rows dt small { font-size: 0.75rem; letter-spacing: 0.08em; color: var(--gold); border: 1px solid var(--gold-soft); border-radius: 999px; padding: 0.1em 0.7em; }
.price-rows dd { margin: 0; font-family: var(--font-serif); font-size: 1.625rem; letter-spacing: 0.02em; line-height: 1.2; }
.price-rows dd em { font-style: normal; font-size: 0.55em; margin-left: 0.15em; }
.price-note { font-size: 0.9375rem; color: var(--ink-2); margin-top: 22px; }

/* ---------------- 院長 ---------------- */

.profile { display: grid; gap: 28px; }
.profile-photo {
  width: min(220px, 60vw);
  aspect-ratio: 1;
  margin: 0 auto;
  display: grid;
  place-content: center;
  gap: 10px;
  background: var(--paper-2);
  border: 1px dashed var(--line);
  border-radius: 50%;
  color: var(--ink-2);
  text-align: center;
}
.profile-photo svg { width: 72px; height: 72px; margin: 0 auto; opacity: 0.5; }
.profile-photo p { font-size: 0.875rem; }

.profile-message {
  margin: 0 0 18px;
  padding: 20px 24px;
  background: var(--paper-2);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.profile-message p { font-family: var(--font-serif); font-size: 1.125rem; letter-spacing: 0.04em; line-height: 1.9; }
.profile-text { color: var(--ink-2); font-size: 1rem; }
.profile-name { margin-top: 16px; font-family: var(--font-serif); font-size: 1.25rem; letter-spacing: 0.1em; }
.profile-name span { font-family: var(--font-sans); font-size: 0.8125rem; color: var(--gold); letter-spacing: 0.1em; margin-right: 12px; }

/* ---------------- よくある質問 ---------------- */

.faq-list { display: grid; gap: 14px; }
.faq-item { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  font-weight: 500;
  letter-spacing: 0.03em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "Q";
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--gold);
  font-size: 1.25rem;
  flex-shrink: 0;
}
.faq-item summary::after {
  content: "";
  flex-shrink: 0;
  margin-left: auto;
  width: 11px;
  height: 11px;
  border-right: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
}
.faq-item[open] summary::after { transform: rotate(225deg) translate(-2px, -2px); }
.faq-item p {
  padding: 16px 24px 22px;
  color: var(--ink-2);
  font-size: 1rem;
  border-top: 1px dashed var(--line);
}

/* ---------------- アクセス ---------------- */

.access { display: grid; gap: 28px; }
.access-map {
  min-height: 240px;
  display: grid;
  place-content: center;
  gap: 12px;
  background: var(--paper-2);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--ink-2);
  text-align: center;
}
.access-map svg { width: 44px; height: 44px; margin: 0 auto; opacity: 0.5; }
.access-map p { font-size: 0.9375rem; }
.access-info > div {
  display: grid;
  grid-template-columns: 6.5em 1fr;
  gap: 16px;
  padding: 16px 4px;
  border-bottom: 1px dashed var(--line);
}
.access-info dt { font-weight: 500; color: var(--green); letter-spacing: 0.04em; }
.access-info dd { margin: 0; color: var(--ink-2); }

/* ---------------- 相談・予約 ---------------- */

.reserve { max-width: none; background: var(--green-deep); color: #f4f1e6; text-align: center; padding: 80px 24px; }
.reserve-inner { max-width: 640px; margin: 0 auto; }
.reserve h2 { font-size: clamp(1.625rem, 4.5vw, 2rem); letter-spacing: 0.1em; margin-bottom: 20px; }
.reserve-lead { margin-bottom: 32px; color: #ddd8c6; }
.reserve-cta { display: grid; justify-items: center; gap: 22px; }
.reserve .btn-light { font-size: 1.25rem; min-height: 62px; padding: 0.6em 2em; }
.reserve-line { font-size: 0.9375rem; color: #b9b5a2; }

/* ---------------- フッター ---------------- */

.site-footer { text-align: center; padding: 48px 24px 120px; border-top: 1px solid var(--line); }
.footer-brand { font-family: var(--font-serif); font-size: 1.25rem; letter-spacing: 0.1em; margin-bottom: 14px; }
.footer-note { font-size: 0.875rem; color: var(--ink-2); margin-bottom: 18px; }
.footer-copy { font-size: 0.8125rem; color: var(--ink-2); letter-spacing: 0.08em; }

/* ---------------- スマホ用固定バー ---------------- */

.mobile-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(253, 252, 248, 0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
}
.mobile-bar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
}
.mobile-bar-btn svg { width: 19px; height: 19px; }
.mobile-bar-tel { background: var(--green-deep); color: #fbf9f2; }
.mobile-bar-reserve { border: 1.5px solid var(--green-deep); color: var(--green-deep); }

/* ---------------- スクロール時のふわっと表示（JS有効時のみ） ---------------- */

@media (prefers-reduced-motion: no-preference) {
  .js .section, .js .hero-body, .js .hero-visual {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .js .is-visible { opacity: 1; transform: none; }
}

/* ================================================================
   タブレット〜PC
================================================================ */

@media (min-width: 720px) {
  .proof-strip { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 1080px; margin: 0 auto; border-left: none; border-right: none; }
  .proof-strip li { padding: 18px 24px; justify-content: center; }
  .proof-strip li + li { border-top: none; border-left: 1px dashed var(--line); }

  .symptom-grid { grid-template-columns: repeat(4, 1fr); gap: 16px; }

  .compare-row { grid-template-columns: 1fr 1.3fr; gap: 24px; align-items: center; }

  /* 初回の流れ: 横並びの図に */
  .flow { grid-template-columns: repeat(5, 1fr); gap: 12px; }
  .flow::before {
    content: "";
    position: absolute;
    left: 10%;
    right: 10%;
    top: 26px;
    border-top: 1px dashed var(--gold-soft);
  }
  .flow li { grid-template-columns: 1fr; justify-items: center; text-align: center; padding-bottom: 0; }
  .flow li::before { display: none; }
  .flow-icon { grid-row: auto; position: relative; z-index: 1; }
  .flow h3 { justify-content: center; padding-top: 14px; font-size: 1.0625rem; }
  .flow p { font-size: 0.875rem; }

  .price-cards { grid-template-columns: repeat(2, 1fr); }

  .profile { grid-template-columns: 240px 1fr; align-items: center; }
  .access { grid-template-columns: 1fr 1.2fr; align-items: start; }
}

@media (min-width: 900px) {
  .pc-only { display: inline; }
  .nav-toggle { display: none; }
  .site-header { padding: 14px 36px; }
  .site-nav { display: flex; align-items: center; gap: 24px; }

  .hero-inner { flex-direction: row; align-items: center; justify-content: space-between; padding: 72px 36px 72px; gap: 48px; }
  .hero-visual { flex-shrink: 0; padding: 30px 40px; }
  .hero-title { margin: 0; }
  .hero-body { max-width: 520px; }
  .hero-lead { font-size: 1.25rem; }

  .section { padding: 96px 36px; }
  .site-footer { padding-bottom: 48px; }
  .mobile-bar { display: none; }
}