/* ============================================================
   みなと自動車整備工場 - main stylesheet
   モバイルファースト / 320px〜480px ベース → 768px / 1024px で拡張
   ============================================================ */

/* ============================================================
   1. デザイントークン（CSS変数）
   ============================================================ */
:root {
  /* 配色（F-02 で確定） */
  --color-primary: #0e2a3f;          /* 深いネイビー */
  --color-accent:  #c8302a;          /* 朱赤 */
  --color-base:    #f7f3ec;          /* クリーム */
  --color-text:    #1a1f24;          /* 炭墨 */
  --color-sub:     #5e6b7a;          /* 鈍い藍鼠 */
  --color-border:  rgba(14, 42, 63, 0.14);
  --color-white:   #ffffff;
  --color-base-rgb: 247, 243, 236;

  /* レイアウト */
  --header-h: 64px;
  --container-w: 1200px;
  --radius: 4px;
  --radius-pill: 999px;

  /* タイポ */
  --font-sans:  "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-num:   "Cormorant Garamond", "Noto Serif JP", serif;

  /* ポートフォリオ告知バナー（指示書.md 準拠） */
  --pn-bg: var(--color-primary);
  --pn-fg: var(--color-base);
  --pn-fg-rgb: 247, 243, 236;
  --pn-accent: var(--color-accent);
  --pn-font: var(--font-sans);
}

/* ============================================================
   2. リセット & ベース
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-base);
  line-height: 1.85;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.br-pc { display: none; }
.br-sp { display: inline; }
@media (min-width: 768px) {
  .br-pc { display: inline; }
  .br-sp { display: none; }
}

/* ============================================================
   3. ポートフォリオ告知バナー（指示書.md 準拠）
   ============================================================ */
.portfolio-notice {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 300;
  background: var(--pn-bg);
  color: var(--pn-fg);
  padding: 0.55rem 1rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-align: center;
  line-height: 1.6;
  border-bottom: 1px solid var(--pn-accent);
  font-family: var(--pn-font);
}
.portfolio-notice strong {
  color: var(--pn-accent);
  letter-spacing: 0.2em;
  margin-right: 0.6rem;
  font-weight: 700;
}
.portfolio-notice .pn-close {
  background: transparent;
  border: 1px solid rgba(var(--pn-fg-rgb), 0.4);
  color: var(--pn-fg);
  font-size: 0.7rem;
  padding: 2px 8px;
  margin-left: 0.8rem;
  cursor: pointer;
  letter-spacing: 0.1em;
  transition: all 0.3s;
  font-family: inherit;
}
.portfolio-notice .pn-close:hover {
  background: var(--pn-accent);
  border-color: var(--pn-accent);
  color: var(--pn-bg);
}

/* バナー表示時の押し下げ */
body.notice-visible { padding-top: 64px; }
body.notice-visible .site-header { top: 64px; }

@media (min-width: 720px) {
  body.notice-visible { padding-top: 44px; }
  body.notice-visible .site-header { top: 44px; }
  .portfolio-notice { font-size: 0.78rem; padding: 0.55rem 1rem; }
}

/* ============================================================
   4. ヘッダー
   site-header に backdrop-filter / transform / filter を直接かけない（包含ブロック事故回避）
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 200;
  border-bottom: 1px solid var(--color-border);
  transition: top 0.3s;
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(247, 243, 236, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: -1;
}
.header-inner {
  height: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ロゴ */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  font-weight: 700;
}
.logo-mark {
  display: inline-grid;
  place-items: center;
  width: 32px; height: 32px;
  background: var(--color-primary);
  color: var(--color-base);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}
@media (max-width: 380px) {
  .logo-text { font-size: 0.82rem; }
}

/* PCナビ（モバイルでは非表示） */
.pc-nav { display: none; }
.header-cta { display: none; }

@media (min-width: 1024px) {
  .pc-nav { display: block; }
  .pc-nav ul {
    display: flex;
    gap: 1.6rem;
  }
  .pc-nav a {
    color: var(--color-text);
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    transition: color 0.2s;
  }
  .pc-nav a:hover { color: var(--color-accent); }

  .header-cta {
    display: inline-flex;
    align-items: center;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 0.6rem 1.4rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    transition: background 0.2s;
  }
  .header-cta:hover { background: #a82820; }
}

/* ============================================================
   5. ハンバーガー（パターンB: 右ドロワー）
   z-index序列: hamburger(220) > drawer(215) > mask(210)
   ============================================================ */
.hamburger {
  width: 44px; height: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  position: relative;
  z-index: 220;
  background: transparent;
  border: 0;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform 0.35s cubic-bezier(.4,0,.2,1), opacity 0.35s;
  transform-origin: center;
}
.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .hamburger { display: none; }
}

/* マスク */
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(14, 42, 63, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
  z-index: 210;
}
.drawer-mask.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* ドロワー本体 */
.drawer {
  position: fixed;
  top: 0; right: 0;
  width: 80vw;
  max-width: 360px;
  height: 100dvh;
  background: var(--color-base);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(.4,0,.2,1);
  z-index: 215;
  padding: calc(var(--header-h) + 1rem) 1.5rem 2rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.drawer.is-open {
  transform: translateX(0);
  box-shadow: -8px 0 32px rgba(14, 42, 63, 0.18);
}

/* 告知バナー併設時の押し下げ */
body.notice-visible .drawer {
  padding-top: calc(var(--header-h) + 64px + 1rem);
}
@media (min-width: 720px) {
  body.notice-visible .drawer {
    padding-top: calc(var(--header-h) + 44px + 1rem);
  }
}

.drawer-list {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  margin-bottom: 2rem;
}
.drawer-list a {
  display: block;
  padding: 1rem 0.4rem;
  border-bottom: 1px solid var(--color-border);
  font-weight: 500;
  font-size: 1rem;
  color: var(--color-text);
  font-family: var(--font-serif);
  letter-spacing: 0.06em;
  transition: color 0.2s;
}
.drawer-list a:hover { color: var(--color-accent); }

.drawer-cta {
  margin-top: 1rem;
  background: var(--color-accent);
  color: var(--color-white) !important;
  border-radius: var(--radius);
  text-align: center;
  padding: 1rem !important;
  border: none !important;
  font-weight: 700 !important;
  letter-spacing: 0.1em;
}
.drawer-cta:hover { color: var(--color-white) !important; }

.drawer-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-sub);
}
.drawer-tel {
  display: flex;
  flex-direction: column;
  margin-bottom: 0.8rem;
}
.drawer-tel-label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.2rem;
}
.drawer-tel a {
  font-family: var(--font-num);
  font-size: 1.4rem;
  color: var(--color-primary);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.drawer-tel small {
  display: block;
  font-size: 0.7rem;
  margin-top: 0.2rem;
}
.drawer-hours { font-size: 0.78rem; }

/* ============================================================
   6. ヒーロー
   ============================================================ */
.hero {
  position: relative;
  min-height: 88vh;
  min-height: 88dvh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--color-white);
  padding: 2rem 0 3rem;
}
.hero-img {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(14, 42, 63, 0.3) 0%,
    rgba(14, 42, 63, 0.55) 50%,
    rgba(14, 42, 63, 0.85) 100%
  );
}
.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.hero-eyebrow {
  font-family: var(--font-num);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  margin-bottom: 1rem;
  opacity: 0.9;
}
.hero-eyebrow .num {
  font-size: 1.05rem;
}
.hero-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2rem, 8vw, 3.4rem);
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin-bottom: 1.4rem;
}
.hero-lead {
  font-size: 0.95rem;
  line-height: 2;
  margin-bottom: 2rem;
  max-width: 540px;
  opacity: 0.95;
}
.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 360px;
}
@media (min-width: 768px) {
  .hero-cta { flex-direction: row; max-width: none; }
  .hero-title { font-size: clamp(2.4rem, 5vw, 3.8rem); }
}

/* ============================================================
   7. ボタン
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 52px;
  padding: 0 1.5rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  transition: all 0.2s;
  text-align: center;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn-primary:hover {
  background: #a82820;
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.6);
}
.btn-ghost:hover {
  background: var(--color-white);
  color: var(--color-primary);
}
.btn-large {
  height: 64px;
  font-size: 1.1rem;
  padding: 0 2.5rem;
}
.btn-icon {
  font-size: 1.1em;
  margin-right: 0.2rem;
}

/* ============================================================
   8. セクション共通
   ============================================================ */
.section {
  padding: 4rem 0;
}
@media (min-width: 768px) { .section { padding: 6rem 0; } }

.section-eyebrow {
  font-family: var(--font-num);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  margin-bottom: 0.6rem;
}
.section-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  line-height: 1.4;
  margin-bottom: 1.2rem;
  position: relative;
  padding-left: 1rem;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 0.4em;
  width: 4px; height: 0.9em;
  background: var(--color-accent);
}
.section-lead {
  color: var(--color-sub);
  font-size: 0.95rem;
  line-height: 2;
  margin-bottom: 2.5rem;
}

/* ============================================================
   9. About（お約束）
   ============================================================ */
.section-about {
  background: var(--color-white);
}
.promise-grid {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .promise-grid { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
}
.promise-card {
  background: var(--color-base);
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  border-top: 3px solid var(--color-accent);
}
.promise-num {
  font-family: var(--font-num);
  font-size: 2rem;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
  line-height: 1;
}
.promise-heading {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-primary);
}
.promise-body {
  font-size: 0.92rem;
  line-height: 1.95;
  color: var(--color-text);
}

/* ============================================================
   10. Service（サービス）
   ============================================================ */
.service-grid {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
}
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.service-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(14, 42, 63, 0.08);
}
.service-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-border);
}
.service-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}
.service-card:hover .service-img img { transform: scale(1.05); }
.service-body { padding: 1.5rem; }
.service-tag {
  font-family: var(--font-num);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 0.4rem;
}
.service-heading {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: var(--color-primary);
}
.service-text {
  font-size: 0.9rem;
  line-height: 1.95;
  color: var(--color-text);
}

/* ============================================================
   11. Facility（工場紹介ギャラリー）
   ============================================================ */
.section-facility {
  background: var(--color-white);
}
.facility-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
@media (min-width: 768px) {
  .facility-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: 1fr 1fr;
    gap: 1rem;
  }
  .facility-item-large {
    grid-column: span 2;
    grid-row: span 2;
  }
}
.facility-item {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius);
}
.facility-item-large {
  grid-column: span 2;
  aspect-ratio: 16 / 10;
}
@media (min-width: 768px) {
  .facility-item-large { aspect-ratio: auto; }
  .facility-item { aspect-ratio: 1 / 1; }
}
.facility-item img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.facility-item figcaption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(14,42,63,0.9), transparent);
  color: var(--color-white);
  padding: 1.5rem 1rem 0.8rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

/* ============================================================
   12. Price（料金目安）
   ============================================================ */
.price-table {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}
.price-row:last-child { border-bottom: none; }
@media (min-width: 768px) {
  .price-row { padding: 1.5rem 2rem; }
}
.price-label h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  color: var(--color-primary);
}
.price-label p {
  font-size: 0.78rem;
  color: var(--color-sub);
  line-height: 1.5;
}
.price-value {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
  white-space: nowrap;
}
.price-num {
  font-family: var(--font-num);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}
.price-unit {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-sub);
}
.price-note {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--color-sub);
  text-align: right;
}

/* ============================================================
   13. News（お知らせ）
   ============================================================ */
.section-news { background: var(--color-white); }
.news-list {
  border-top: 1px solid var(--color-border);
}
.news-item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 0.4rem 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: center;
}
.news-item time {
  font-family: var(--font-num);
  font-size: 0.95rem;
  color: var(--color-sub);
  letter-spacing: 0.04em;
}
.news-tag {
  display: inline-block;
  font-size: 0.7rem;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius);
  letter-spacing: 0.1em;
  width: fit-content;
}
.news-title {
  grid-column: 1 / -1;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.7;
}
@media (min-width: 768px) {
  .news-item {
    grid-template-columns: auto auto 1fr;
    grid-template-rows: auto;
    gap: 0 1.5rem;
  }
  .news-title { grid-column: auto; }
}
.news-note {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--color-sub);
}

/* ============================================================
   14. FAQ
   ============================================================ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item summary {
  padding: 1.2rem 1.5rem;
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--color-primary);
  cursor: pointer;
  position: relative;
  list-style: none;
  font-size: 0.95rem;
  line-height: 1.6;
  padding-right: 3rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 1.5rem;
  color: var(--color-accent);
  font-weight: 400;
  transition: transform 0.3s;
}
.faq-item[open] summary::after {
  content: "−";
}
.faq-item p {
  padding: 0 1.5rem 1.4rem;
  font-size: 0.9rem;
  line-height: 1.95;
  color: var(--color-text);
  border-top: 1px solid var(--color-border);
  padding-top: 1.2rem;
}

/* ============================================================
   15. Access（アクセス・会社概要）
   ============================================================ */
.section-access { background: var(--color-white); }
.access-grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 768px) {
  .access-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}
.company-dl {
  display: grid;
  grid-template-columns: 6em 1fr;
  gap: 0.5rem 1.2rem;
  font-size: 0.9rem;
  line-height: 1.85;
}
.company-dl dt {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--color-primary);
  padding-top: 0.15rem;
}
.company-dl dd {
  border-bottom: 1px dashed var(--color-border);
  padding-bottom: 0.7rem;
}
.company-dl dt {
  border-bottom: 1px dashed var(--color-border);
  padding-bottom: 0.7rem;
}
.company-dl small {
  font-size: 0.75rem;
  color: var(--color-sub);
}
.company-dl a {
  font-family: var(--font-num);
  font-size: 1.2rem;
  color: var(--color-accent);
  font-weight: 500;
}

.access-map {
  background: var(--color-base);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  min-height: 280px;
  display: grid;
  place-items: center;
  padding: 2rem;
}
.map-placeholder {
  text-align: center;
  color: var(--color-sub);
}
.map-pin {
  display: block;
  font-size: 3rem;
  margin-bottom: 0.5rem;
  filter: grayscale(0.3);
}
.map-text {
  font-family: var(--font-serif);
  font-size: 0.9rem;
}

/* ============================================================
   16. Contact
   ============================================================ */
.section-contact {
  background: var(--color-primary);
  color: var(--color-base);
}
.section-title-light {
  color: var(--color-base);
}
.section-title-light::before {
  background: var(--color-accent);
}
.section-contact .section-eyebrow {
  color: var(--color-accent);
}
.contact-lead {
  font-size: 1rem;
  line-height: 2;
  margin-bottom: 2.5rem;
  text-align: center;
  color: rgba(247, 243, 236, 0.9);
}
.contact-cta {
  text-align: center;
  margin-bottom: 3rem;
}
.contact-hours {
  margin-top: 1rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: rgba(247, 243, 236, 0.7);
}
.disclaimer {
  background: rgba(247, 243, 236, 0.08);
  border: 1px solid rgba(247, 243, 236, 0.18);
  border-radius: var(--radius);
  padding: 1.5rem;
  font-size: 0.82rem;
  line-height: 1.8;
  color: rgba(247, 243, 236, 0.85);
}
.disclaimer strong {
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* ============================================================
   17. Footer
   ============================================================ */
.site-footer {
  background: #07182a;
  color: rgba(247, 243, 236, 0.7);
  padding: 3rem 0 1.5rem;
}
.footer-inner {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-base);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.footer-logo-mark {
  display: inline-grid;
  place-items: center;
  width: 32px; height: 32px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 1.05rem;
  border-radius: var(--radius);
}
.footer-tag {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}
.footer-nav ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 1.5rem;
}
.footer-nav a {
  font-size: 0.85rem;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--color-accent); }

.copyright {
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  line-height: 1.8;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(247, 243, 236, 0.1);
  color: rgba(247, 243, 236, 0.5);
}

/* ============================================================
   18. アクセシビリティ補助
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}