@charset "UTF-8";

/* ============================================================
   BASE / RESET
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* ============================================================
   共通変数
   ============================================================ */
:root {
  /* ── カラー ── */
  --color-primary: #1a5c3a;
  --color-primary-light: #e8f5ee;
  --color-primary-dark: #0e3d25;
  --color-accent: #c4320a;          /* コントラスト比改善: 旧#d4380d → 4.5:1以上を確保 */
  --color-accent-light: #fff2e8;
  --color-text: #222222;            /* 本文コントラスト強化 */
  --color-text-light: #555555;      /* 補助テキストコントラスト強化: 旧#666→#555 */
  --color-bg: #ffffff;
  --color-bg-gray: #f7f8fa;
  --color-border: #d5d5d5;          /* わずかに濃く */
  --color-law-bg: #f9f9f9;
  --color-law-border: #999999;      /* 引用ボーダー視認性改善 */
  --color-focus: #1a5c3a;

  /* ── 角丸 ── */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* ── 影 ── */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);

  /* ── フォント ── */
  --font-base: "Shippori Mincho", "Noto Serif JP", serif;
  --font-sans: "Noto Sans JP", "Hiragino Sans", sans-serif;

  /* ── アニメーション ── */
  --transition-base: 0.25s ease;

  /* ── レイアウト ── */
  --content-max-width: 820px;
  --content-pad-x: 1.5rem;
  --content-pad-x-sp: 1rem;
}

/* ============================================================
   共通ユーティリティ
   ============================================================ */
.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;
}

/* ============================================================
   記事要約（speakable対応）
   ============================================================ */
.article-summary {
  max-width: var(--content-max-width);
  margin: 0 auto 2rem;
  padding: 1.25rem var(--content-pad-x);
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  font-family: var(--font-base);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text);
}

.article-summary p {
  margin: 0;
}

/* ============================================================
   重要ボックス
   ============================================================ */
.box-important {
  max-width: var(--content-max-width);
  margin: 2rem auto;
  padding: 1.25rem var(--content-pad-x) 1.25rem 3.5rem;
  background: var(--color-accent-light);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  position: relative;
  font-family: var(--font-base);
  font-size: 0.975rem;
  line-height: 1.85;
  color: var(--color-text);
}

.box-important::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 1.15rem;
  width: 1.4rem;
  height: 1.4rem;
  /* SVGアイコン: 絵文字レンダリング差異を排除 */
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23c4320a'%3E%3Cpath d='M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z'/%3E%3C/svg%3E") no-repeat center / contain;
}

.box-important p {
  margin: 0;
}

.box-important strong {
  color: var(--color-accent);
  font-weight: 700;
}

/* ============================================================
   ポイントボックス
   ============================================================ */
.box-point {
  max-width: var(--content-max-width);
  margin: 2rem auto;
  padding: 1.25rem var(--content-pad-x) 1.25rem 3.5rem;
  background: var(--color-primary-light);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  position: relative;
  font-family: var(--font-base);
  font-size: 0.975rem;
  line-height: 1.85;
  color: var(--color-text);
}

.box-point::before {
  content: "";
  position: absolute;
  left: 1.1rem;
  top: 1.15rem;
  width: 1.3rem;
  height: 1.3rem;
  /* SVGチェックマーク: クロスブラウザ互換 */
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%231a5c3a'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") no-repeat center / contain;
}

.box-point p {
  margin: 0;
}

.box-point strong {
  color: var(--color-primary-dark);
  font-weight: 700;
}

/* ============================================================
   条例引用
   ============================================================ */
.box-law {
  max-width: var(--content-max-width);
  margin: 2rem auto;
  padding: 0;
  border: none;
}

.box-law blockquote {
  margin: 0;
  padding: 1.25rem var(--content-pad-x);
  background: var(--color-law-bg);
  border-left: 4px solid var(--color-law-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-base);
  font-size: 0.925rem;
  line-height: 1.9;
  color: var(--color-text-light);
  font-style: normal;
  quotes: none;
}

.box-law blockquote p {
  margin: 0;
}

.box-law figcaption {
  margin-top: 0.5rem;
  padding-left: var(--content-pad-x);
  font-family: var(--font-base);
  font-size: 0.8rem;
  color: #767676;              /* コントラスト比4.5:1確保: 旧#999 → #767676 */
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-section {
  max-width: var(--content-max-width);
  margin: 3rem auto;
}

.faq-section > h2 {
  font-family: var(--font-base);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary);
}

.faq-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.faq-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.faq-q {
  margin: 0;
  padding: 0;
}

.faq-q button {
  display: flex;
  align-items: flex-start;
  width: 100%;
  padding: 1.1rem 3rem 1.1rem 3.25rem;
  background: var(--color-bg-gray);
  border: none;
  cursor: pointer;
  font-family: var(--font-base);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--color-text);
  text-align: left;
  position: relative;
  transition: background var(--transition-base);
}

.faq-q button:hover,
.faq-q button:focus-visible {
  background: var(--color-primary-light);
}

.faq-q button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}

/* Q バッジ */
.faq-q button::before {
  content: "Q";
  position: absolute;
  left: 1.1rem;
  top: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

/* 開閉アロー */
.faq-q button::after {
  content: "";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--color-text-light);
  border-bottom: 2px solid var(--color-text-light);
  transform: translateY(-65%) rotate(45deg);
  transition: transform var(--transition-base);
}

.faq-q button[aria-expanded="true"]::after {
  transform: translateY(-35%) rotate(-135deg);
}

/* 回答エリア: CLS防止 + アニメーション */
.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
  contain: layout style;
}

.faq-a > .faq-a-inner {
  overflow: hidden;
  padding: 0 var(--content-pad-x) 0 3.25rem;
  transition: padding 0.35s ease;
}

.faq-a.is-open {
  grid-template-rows: 1fr;
}

.faq-a.is-open > .faq-a-inner {
  padding: 1rem var(--content-pad-x) 1.25rem 3.25rem;
}

/* A バッジ */
.faq-a-inner::before {
  content: "A";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 50%;
  margin-right: 0.5rem;
  margin-left: -1.75rem;
  float: left;
  margin-top: 0.15rem;
  flex-shrink: 0;
}

.faq-a p {
  margin: 0;
  font-family: var(--font-base);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--color-text);
}

/* ============================================================
   手順フロー
   ============================================================ */
.flow-section {
  max-width: var(--content-max-width);
  margin: 3rem auto;
}

.flow-section > h2 {
  font-family: var(--font-base);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary);
}

.flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  counter-reset: flow-step;
}

/* 縦の接続ライン */
.flow-list::before {
  content: "";
  position: absolute;
  left: 1.25rem;
  top: 2.5rem;
  bottom: 2.5rem;
  width: 2px;
  background: var(--color-border);
}

.flow-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.25rem 0;
  position: relative;
  counter-increment: flow-step;
}

.flow-step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  min-width: 2.5rem;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 50%;
  position: relative;
  z-index: 1;
}

.flow-content {
  flex: 1;
  padding-top: 0.25rem;
}

.flow-content h3 {
  font-family: var(--font-base);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin: 0 0 0.4rem;
  line-height: 1.5;
}

.flow-content p {
  margin: 0;
  font-family: var(--font-base);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--color-text);
}

/* ============================================================
   CTA
   ============================================================ */
.cta-box {
  max-width: var(--content-max-width);
  margin: 3rem auto;
  padding: 2rem;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.cta-box h3 {
  font-family: var(--font-base);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.75rem;
}

.cta-box > p {
  font-family: var(--font-base);
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.92);
  margin: 0 0 1.5rem;
}

.cta-box > p strong {
  color: #fff;
  font-size: 1.1em;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.cta-tel {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: #fff;
  transition: opacity var(--transition-base);
}

.cta-tel:hover {
  opacity: 0.85;
}

.cta-tel:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.cta-tel-icon {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.cta-tel-number {
  font-family: var(--font-sans);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.cta-tel-hours {
  font-family: var(--font-base);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.78);
  margin-top: 0.2rem;
}

.btn-cta {
  display: inline-block;
  padding: 0.9rem 2.5rem;
  background: #fff;
  color: var(--color-primary-dark);
  font-family: var(--font-base);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 100px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.btn-cta:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================================
   レスポンシブ
   ============================================================ */
@media screen and (max-width: 768px) {
  :root {
    --content-pad-x: var(--content-pad-x-sp);
  }

  .article-summary,
  .box-important,
  .box-point,
  .box-law,
  .faq-section,
  .flow-section,
  .cta-box {
    margin-left: var(--content-pad-x-sp);
    margin-right: var(--content-pad-x-sp);
  }

  .box-important,
  .box-point {
    padding-left: 3rem;
  }

  .box-important::before {
    left: 0.75rem;
  }

  .box-point::before {
    left: 0.85rem;
  }

  .faq-q button {
    padding: 1rem 2.5rem 1rem 2.75rem;
    font-size: 0.95rem;
  }

  .faq-q button::before {
    left: 0.75rem;
    width: 1.4rem;
    height: 1.4rem;
    font-size: 0.78rem;
  }

  .faq-a.is-open > .faq-a-inner {
    padding-left: 2.75rem;
  }

  .faq-a-inner::before {
    width: 1.4rem;
    height: 1.4rem;
    font-size: 0.78rem;
    margin-left: -1.5rem;
  }

  .flow-list::before {
    left: 1rem;
  }

  .flow-step-number {
    width: 2rem;
    height: 2rem;
    min-width: 2rem;
    font-size: 0.95rem;
  }

  .flow-content h3 {
    font-size: 1rem;
  }

  .cta-box {
    padding: 1.5rem 1.25rem;
  }

  .cta-tel-number {
    font-size: 1.5rem;
  }

  .btn-cta {
    width: 100%;
    text-align: center;
    padding: 0.85rem 1.5rem;
  }
}

/* 360px以下：さらに小さい端末対応 */
@media screen and (max-width: 360px) {
  .faq-q button {
    padding-left: 2.5rem;
    font-size: 0.9rem;
  }

  .cta-box h3 {
    font-size: 1.15rem;
  }

  .cta-tel-number {
    font-size: 1.3rem;
  }
}

/* ============================================================
   print対応
   ============================================================ */
@media print {
  .cta-box {
    display: none;
  }

  .faq-a {
    grid-template-rows: 1fr !important;
  }

  .faq-a > .faq-a-inner {
    padding: 1rem var(--content-pad-x) 1.25rem 3.25rem !important;
    overflow: visible;
  }

  .box-important,
  .box-point {
    border-width: 1px;
    box-shadow: none;
  }

  .flow-list::before {
    background: #ccc;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #555;
  }
}

/* ============================================================
   アクセシビリティ：モーション低減
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   ダークモード（OS設定連動）
   ============================================================ */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #e8e8e8;
    --color-text-light: #b0b0b0;
    --color-bg: #1a1a1a;
    --color-bg-gray: #242424;
    --color-border: #3a3a3a;
    --color-primary-light: #1a3328;
    --color-accent-light: #2d1a0e;
    --color-law-bg: #222222;
    --color-law-border: #555555;
  }

  .box-law figcaption {
    color: #999;
  }

  .faq-q button::before {
    color: #fff;
  }

  .btn-cta {
    background: var(--color-bg);
    color: #e8e8e8;
  }
}

/* ============================================================
   ハイコントラストモード対応
   ============================================================ */
@media (forced-colors: active) {
  .box-important,
  .box-point,
  .faq-item {
    border: 2px solid CanvasText;
  }

  .btn-cta {
    border: 2px solid LinkText;
  }

  .flow-step-number,
  .faq-q button::before,
  .faq-a-inner::before {
    forced-color-adjust: none;
  }
}