/* ─────────────────────────────────────────
   yametai-jp スタイル
   カラー：ネイビー（信頼）+ コーラル（CTA）+ オフホワイト
   フォント：Noto Serif JP（見出し）/ Noto Sans JP（本文）
   ───────────────────────────────────────── */

:root {
  /* グリーン系統（セージ／ユーカリ寄りにトーンダウン、彩度控えめ） */
  --color-navy: #3d7a5f;           /* 旧navy → セージグリーン（主軸） */
  --color-navy-dark: #1f3d2e;      /* 旧navy-dark → ディープフォレスト（ヘッダー・フッター） */
  --color-navy-light: #6ea590;     /* 旧navy-light → モスグリーン */
  --color-heading: #2a2a2a;        /* 見出し専用の炭色（緑と切り分ける） */
  --color-coral: #d9641a;          /* オレンジ系・白文字でWCAG AA (4.8:1) */
  --color-coral-dark: #a85118;     /* hover・白文字でWCAG AAA (6.2:1) */
  --color-mint: #6ba98f;           /* ユーカリミント（柔らかい） */
  --color-mint-dark: #3d7a5f;      /* 成功系テキスト */
  --color-mint-soft: #edf3ef;      /* 薄ミント（ほぼニュートラル） */
  --color-cream: #fdfcf6;
  --color-cream-warm: #f5efe6;     /* ベージュ寄りの暖色ヒーロー背景用 */
  --color-sunny: #e8b845;          /* スパークル黄 WCAG AA: 4.5:1 on navy */
  --color-sunny-soft: #fef3ca;
  --color-bg: #fafaf7;
  --color-bg-card: #ffffff;
  --color-border: #e8e6df;
  --color-text: #2a2a2a;
  --color-text-sub: #666666;
  --color-muted: #707070;          /* WCAG AA: 4.74:1 on bg */
  --color-accent-soft: #fef4ec;

  --font-serif: "Noto Serif JP", "游明朝", "Yu Mincho", serif;
  --font-sans: "Noto Sans JP", "游ゴシック", "Yu Gothic", sans-serif;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 6px rgba(30, 58, 95, 0.05);
  --shadow-md: 0 6px 20px rgba(30, 58, 95, 0.07);
  --shadow-lg: 0 12px 36px rgba(30, 58, 95, 0.10);

  --container-max: 720px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 14px;              /* 本文基準を14pxに統一 */
  font-feature-settings: "palt";
}

img {
  max-width: 100%;
  height: auto;
}

/* スクリーンリーダー用：視覚的には非表示だがDOM・SEO・支援技術には残す */
.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;
}

a {
  color: var(--color-navy);
  text-decoration: underline;
  text-underline-offset: 3px;
}
a:hover {
  color: var(--color-coral);
}

/* ─────────────────────────────────────────
   ヘッダー
   ───────────────────────────────────────── */
.site-header {
  background: var(--color-mint-dark);
  color: #fff;
  padding: 8px 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 10;
}

/* モバイル/タブレット：ヘッダーをコンパクトに */
@media (max-width: 768px) {
  .site-header {
    padding: 5px 16px;
  }
}

.site-header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.02em;
  padding: 4px 8px;
  border-radius: 8px;
  transition: background 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.site-logo span {
  text-decoration: underline;
  text-decoration-color: var(--color-coral);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.22em;
}
.site-logo-icon {
  width: 24px;
  height: 24px;
  color: #fff;
  flex-shrink: 0;
}
.site-logo:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.site-nav {
  display: flex;
  gap: 20px;
  font-size: 0.875rem;
}
.site-nav a {
  color: #fff;
  text-decoration: none;
  opacity: 0.85;
}
.site-nav a:hover {
  opacity: 1;
}

/* ─────────────────────────────────────────
   ヒーロー
   ───────────────────────────────────────── */
.hero {
  background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-cream-warm) 100%);
  color: var(--color-heading);
  padding: 14px 16px 18px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
}
.hero-mascot {
  position: absolute;
  right: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 80px;
  height: auto;
}
@media (max-width: 768px) {
  .hero-mascot {
    width: 52px;
    right: 4px;
  }
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 3.1vw, 1.5rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 4px;
  letter-spacing: 0.01em;
  color: var(--color-heading);
}

.hero-lead {
  font-size: clamp(0.7rem, 1.8vw, 0.8rem);
  color: var(--color-text-sub);
  line-height: 1.5;
  max-width: 560px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: var(--color-mint);
  color: #fff;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: 0.05em;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* モバイル/タブレット：hero-badge 非表示で更に圧縮 */
@media (max-width: 768px) {
  .hero { padding: 12px 12px 14px; }
}

/* ─────────────────────────────────────────
   シミュレーター
   ───────────────────────────────────────── */
.sim-section {
  padding: 32px 20px 40px;
}

.sim-card {
  max-width: var(--container-max);
  margin: -28px auto 0;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 28px 24px;
  position: relative;
}

.sim-card h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-heading);
  margin-bottom: 6px;
}

.sim-card-note {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}

.sim-card-foot {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
}
.sim-card-compliance {
  display: block;
  font-size: 0.72rem;
  color: var(--color-muted);
  margin: 0;
  letter-spacing: 0.02em;
  flex: 1;
}
.source-link {
  flex-shrink: 0;
  background: transparent;
  border: none;
  color: var(--color-muted);
  font-size: 0.72rem;
  font-family: var(--font-sans);
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
  white-space: nowrap;
}
.source-link:hover {
  color: var(--color-navy);
}

/* モーダル */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal[hidden] {
  display: none;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 18, 30, 0.55);
  cursor: pointer;
}
.modal-panel {
  position: relative;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
.modal-panel h3,
.modal-title {
  font-family: var(--font-serif);
  color: var(--color-heading);
  margin: 0 0 12px;
  font-size: 1.1rem;
  font-weight: 700;
}
.modal-panel p {
  font-size: 0.88rem;
  color: var(--color-text);
  margin-bottom: 12px;
}
.modal-list {
  list-style: disc;
  padding-left: 1.4em;
  margin: 0 0 12px;
  font-size: 0.85rem;
  line-height: 1.8;
}
.modal-steps {
  list-style: decimal;
  padding-left: 1.4em;
  margin: 0 0 16px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--color-text);
}
.modal-steps li {
  margin-bottom: 6px;
}
.modal-subhead {
  font-size: 0.78rem !important;
  font-weight: 700;
  color: var(--color-navy-dark);
  margin: 4px 0 6px !important;
  letter-spacing: 0.04em;
}
.modal-list a {
  color: var(--color-navy);
  text-decoration: underline;
  word-break: break-word;
}
.modal-list a:hover {
  color: var(--color-coral-dark);
}
.modal-foot {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin: 0;
}
.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-muted);
  cursor: pointer;
  border-radius: 50%;
}
.modal-close:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--color-navy);
}

.source {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-top: 6px;
}
.source a {
  color: var(--color-muted);
  text-decoration: underline;
}
.source a:hover {
  color: var(--color-navy);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy-dark);
  margin-bottom: 6px;
}

.form-group .help {
  display: block;
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: 4px;
}

.form-group .checkbox-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--color-text);
  cursor: pointer;
  font-weight: 400;
  margin: 0;
}
.form-group .checkbox-inline input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-mint-dark);
}

.form-group input[type="number"],
.form-group input[type="text"],
.form-group input[type="date"] {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.95rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color 0.2s;
  font-family: var(--font-sans);
}
/* 日付入力：どこをクリックしてもカレンダーが開く */
.form-group input[type="date"] {
  position: relative;
  cursor: pointer;
}
.form-group input[type="date"]::-webkit-calendar-picker-indicator {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  background: transparent;
  cursor: pointer;
  opacity: 0;
}
.form-group input[type="number"]:focus,
.form-group input[type="text"]:focus {
  outline: none;
  border-color: var(--color-navy);
}

/* 単位バッジ付きインプット */
.input-with-unit {
  display: flex;
  align-items: stretch;
}
.input-with-unit input[type="number"],
.input-with-unit input[type="text"] {
  flex: 1;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: none;
}
.input-with-unit .input-unit {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  padding: 0 12px;
  background: var(--color-navy);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  border-top-right-radius: var(--radius);
  border-bottom-right-radius: var(--radius);
}

/* ラジオボタン（セグメント風） */
.radio-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
@media (min-width: 560px) {
  .radio-group {
    grid-template-columns: repeat(4, 1fr);
  }
}

.radio-group input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.radio-group label.radio-label {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 6px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-sub);
  text-align: center;
  transition: all 0.15s;
  margin: 0;
}

.radio-group input[type="radio"]:checked + label.radio-label {
  background: var(--color-navy);
  color: #fff;
  border-color: var(--color-navy);
}

/* 追加条件（チェックボックス・アコーディオン） */
.checkbox-group {
  background: #f0f0ed;
  border-radius: var(--radius);
  padding: 0;
  margin-bottom: 20px;
}

.checkbox-group-title {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-navy);
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 36px;
  user-select: none;
}
.checkbox-group-title::-webkit-details-marker {
  display: none;
}
.checkbox-group-title::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-navy);
  border-bottom: 2px solid var(--color-navy);
  transform: translateY(-75%) rotate(45deg);
  transition: transform 0.2s;
}
.checkbox-group[open] .checkbox-group-title::after {
  transform: translateY(-25%) rotate(-135deg);
}

.checkbox-group-body {
  padding: 0 16px 12px;
}

.checkbox-group label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text);
  cursor: pointer;
  padding: 4px 0;
}

.checkbox-group input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  cursor: pointer;
}

.checkbox-group input[type="checkbox"]:disabled + span {
  color: var(--color-muted);
}

/* 計算ボタン */
.btn-primary {
  display: block;
  width: 100%;
  padding: 16px;
  background: var(--color-coral);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 700;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.03em;
  box-shadow: 0 4px 0 var(--color-coral-dark);
}
.btn-primary:hover {
  background: var(--color-coral-dark);
  transform: translateY(1px);
  box-shadow: 0 3px 0 var(--color-coral-dark);
}
.btn-primary:active {
  transform: translateY(4px);
  box-shadow: 0 0 0 var(--color-coral-dark);
}

/* ─────────────────────────────────────────
   結果カード
   ───────────────────────────────────────── */
.result {
  max-width: var(--container-max);
  margin: 24px auto 0;
  display: none;
}

.result-card {
  position: relative;
  background: #fff;
  border: 2px solid var(--color-mint);
  border-radius: var(--radius-lg);
  padding: 20px 16px;
  box-shadow: var(--shadow-md);
}
.result-mascot {
  position: absolute;
  top: -32px;
  right: 12px;
  width: 80px;
  height: auto;
  z-index: 2;
}
@media (max-width: 768px) {
  .result-mascot {
    width: 64px;
    top: -26px;
    right: 8px;
  }
}

.result-card.ineligible {
  border-color: var(--color-coral);
  background: var(--color-accent-soft);
}

.result-card.ineligible h3 {
  color: var(--color-coral-dark);
  font-family: var(--font-serif);
  margin-bottom: 8px;
}

.result-headline {
  text-align: center;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px dashed var(--color-border);
}

.result-label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}

.result-total {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--color-mint-dark);
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.result-formula {
  display: block;
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-top: 6px;
  font-variant-numeric: tabular-nums;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.result-item {
  padding: 10px 12px;
  background: var(--color-bg);
  border-radius: var(--radius);
}

.result-key {
  display: block;
  font-size: 0.7rem;
  color: var(--color-text-sub);
  margin-bottom: 2px;
  line-height: 1.3;
}

.result-value {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.3;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "palt" off;
}
.result-value small {
  display: block;
  font-size: 0.66rem;
  font-weight: 400;
  color: var(--color-text-sub);
  margin-top: 1px;
  line-height: 1.3;
}

/* 結果カード：次の一歩 */
.result-nextstep {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
}
.result-nextstep-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-mint-dark);
  margin: 0 0 10px;
  letter-spacing: 0.04em;
}
.result-nextstep-title::before {
  content: "✓";
  display: inline-block;
  width: 18px;
  height: 18px;
  background: var(--color-mint);
  color: #fff;
  border-radius: 50%;
  text-align: center;
  line-height: 18px;
  font-size: 0.72rem;
  margin-right: 6px;
  vertical-align: middle;
}
.result-nextstep-links {
  display: grid;
  gap: 12px;
}
@media (min-width: 560px) {
  .result-nextstep-links {
    grid-template-columns: 1fr 1fr;
  }
}
.result-nextstep-link {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "label arrow"
    "desc  arrow";
  align-items: center;
  column-gap: 10px;
  padding: 10px 14px 11px;
  background: #fff;
  border: 2px solid var(--color-mint);
  color: var(--color-text);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 0.12s, box-shadow 0.15s;
  box-shadow: 0 3px 0 var(--color-mint);
}
.result-nextstep-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 0 var(--color-mint-dark);
}
.result-nextstep-link::after {
  content: "→";
  grid-area: arrow;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-mint-dark);
  transition: transform 0.15s;
}
.result-nextstep-link:hover::after {
  transform: translateX(2px);
}
.result-nextstep-link + .result-nextstep-link {
  border-color: var(--color-coral);
  box-shadow: 0 3px 0 var(--color-coral);
}
.result-nextstep-link + .result-nextstep-link:hover {
  box-shadow: 0 5px 0 var(--color-coral-dark);
}
.result-nextstep-link + .result-nextstep-link::after {
  color: var(--color-coral-dark);
}
.result-nextstep-label {
  grid-area: label;
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.3;
}
.result-nextstep-desc {
  grid-area: desc;
  display: block;
  font-size: 0.72rem;
  color: var(--color-text-sub);
  line-height: 1.4;
  margin-top: 1px;
}

/* 計算フロー図解（3ステップ） */
.calc-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 6px;
  align-items: stretch;
  margin: 20px 0 28px;
}
.calc-flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 14px 10px;
  background: var(--color-mint-soft);
  border: 2px solid var(--color-mint);
  border-radius: var(--radius);
}
.calc-flow-num {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--color-mint-dark);
  margin-bottom: 4px;
}
.calc-flow-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 6px;
}
.calc-flow-formula {
  font-size: 0.72rem;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 6px;
}
.calc-flow-example {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-mint-dark);
  margin-top: auto;
}
.calc-flow-arrow {
  display: flex;
  align-items: center;
  color: var(--color-coral);
  font-size: 1.4rem;
  font-weight: 700;
}
.calc-flow-note {
  text-align: right;
  font-size: 0.72rem;
  color: var(--color-muted);
  margin: -18px 4px 20px;
}
@media (max-width: 640px) {
  .calc-flow {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto auto;
  }
  .calc-flow-arrow {
    justify-content: center;
    transform: rotate(90deg);
    font-size: 1.2rem;
  }
  .calc-flow-step {
    padding: 12px;
  }
}

/* 改正前後タイムライン比較 */
.timeline-compare {
  margin: 18px 0 8px;
  display: grid;
  gap: 10px;
}
.timeline-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px;
  align-items: center;
}
.timeline-label {
  font-size: 0.78rem;
  color: var(--color-text-sub);
  font-weight: 600;
  line-height: 1.3;
}
.timeline-row-highlight .timeline-label {
  color: var(--color-mint-dark);
}
.timeline-bar {
  display: flex;
  height: 36px;
  border-radius: 6px;
  overflow: hidden;
  background: var(--color-border);
}
.timeline-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  font-size: 0.66rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  text-align: center;
  line-height: 1.2;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.seg-wait {
  background: #c9c5b8;
  color: #444;
}
.seg-restrict-old {
  background: var(--color-coral);
}
.seg-restrict {
  background: var(--color-coral-dark);
}
.seg-pay {
  background: var(--color-mint-dark);
}
@media (max-width: 560px) {
  .timeline-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .timeline-label {
    font-size: 0.72rem;
  }
  .timeline-bar {
    height: 32px;
  }
}

/* 運営者情報 dl */
.company-info {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 8px 16px;
  font-size: 0.9rem;
  line-height: 1.6;
}
.company-info dt {
  font-weight: 700;
  color: var(--color-heading);
}
.company-info dd {
  margin: 0;
}
@media (max-width: 480px) {
  .company-info {
    grid-template-columns: 1fr;
    gap: 2px 0;
  }
  .company-info dt {
    margin-top: 8px;
    color: var(--color-text-sub);
    font-size: 0.78rem;
  }
  .company-info dt:first-child {
    margin-top: 0;
  }
}

/* お問い合わせフォーム */
.contact-form {
  margin-top: 12px;
}
.contact-form .form-group {
  margin-bottom: 16px;
}
.contact-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 6px;
}
.contact-form .form-optional {
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--color-muted);
  margin-left: 4px;
}
.contact-form .form-required {
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--color-coral);
  margin-left: 4px;
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-mint-dark);
}
.contact-form textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.7;
}
.contact-form .btn-primary {
  background: var(--color-cream-warm);
  color: var(--color-heading);
  border: 1.5px solid var(--color-border);
  box-shadow: 0 3px 0 #d8d2c0;
}
.contact-form .btn-primary:hover {
  background: #ede5d2;
  color: var(--color-heading);
  box-shadow: 0 3px 0 #c8c0ac;
}

.contact-thanks {
  padding: 20px;
  background: var(--color-mint-soft);
  border: 2px solid var(--color-mint);
  border-radius: var(--radius);
  text-align: center;
  color: var(--color-heading);
}
.contact-thanks p {
  margin: 4px 0;
}

/* 汎用：成功バッジ・チェックリスト（ミント） */
.success-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: var(--color-mint-soft);
  color: var(--color-mint-dark);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 700;
}
.success-badge::before {
  content: "✓";
}
.check-list {
  list-style: none;
  padding-left: 0;
}
.check-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 8px;
  line-height: 1.7;
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 4px;
  width: 20px;
  height: 20px;
  background: var(--color-mint);
  color: #fff;
  border-radius: 50%;
  text-align: center;
  line-height: 20px;
  font-size: 0.72rem;
  font-weight: 700;
}

.disclaimer {
  margin-top: 18px;
  font-size: 0.72rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.error {
  color: var(--color-coral-dark);
  padding: 14px;
  background: var(--color-accent-soft);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

/* ─────────────────────────────────────────
   セクション共通
   ───────────────────────────────────────── */
.section {
  padding: 40px 20px;
  max-width: var(--container-max);
  margin: 0 auto;
}

.section h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;           /* 20px に統一 */
  color: var(--color-heading);
  margin-bottom: 16px;
  position: relative;
  padding-left: 14px;
}
.section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: var(--color-coral);
  border-radius: 2px;
}

.section h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-heading);
  margin: 28px 0 12px;
}

.section p {
  margin-bottom: 14px;
  color: var(--color-text);
}

/* 比較テーブル */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  font-size: 0.9rem;
}

.compare-table th {
  background: var(--color-navy);
  color: #fff;
  padding: 12px 10px;
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
}

.compare-table td {
  padding: 12px 10px;
  border-top: 1px solid var(--color-border);
  vertical-align: top;
}

.compare-table tr:nth-child(even) td {
  background: var(--color-bg);
}

.compare-table .col-self {
  color: var(--color-navy-dark);
}
.compare-table .col-company {
  color: var(--color-coral-dark);
  font-weight: 600;
}

/* CTAカード（退職届への送客） */
.cta-card {
  position: relative;
  background: linear-gradient(135deg, var(--color-mint-dark) 0%, var(--color-mint) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  margin: 32px auto;
  max-width: var(--container-max);
  text-align: center;
  box-shadow: var(--shadow-md);
}
.cta-card.cta-card-alt {
  background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 100%);
  border-top: 3px solid var(--color-coral);
}
.cta-mascot {
  position: absolute;
  top: -26px;
  right: 18px;
  width: 68px;
  height: auto;
  z-index: 2;
}
@media (max-width: 768px) {
  .cta-mascot {
    width: 54px;
    top: -22px;
    right: 12px;
  }
}

.cta-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 10px;
  color: #fff;
}

.cta-card p {
  font-size: 0.8rem;
  opacity: 0.9;
  margin-bottom: 18px;
}

.cta-btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--color-coral);
  color: #fff;
  border-radius: 100px;
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.15s;
  box-shadow: 0 3px 0 var(--color-coral-dark);
}
.cta-btn:hover {
  background: var(--color-coral-dark);
  color: #fff;
  transform: translateY(1px);
  box-shadow: 0 2px 0 var(--color-coral-dark);
}

/* FAQ */
.faq-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
  margin: 0;
  padding: 2px 0;
}
.faq-item:last-child {
  border-bottom: none;
}

.faq-item summary {
  padding: 14px 32px 14px 0;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-heading);
  font-size: 0.95rem;
  list-style: none;
  position: relative;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "＋";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-muted);
  font-weight: 300;
  font-size: 1.25rem;
  transition: transform 0.2s;
}
.faq-item[open] summary::after {
  content: "−";
}

.faq-item .faq-body {
  padding: 0 0 14px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--color-text);
}

/* ─────────────────────────────────────────
   フッター
   ───────────────────────────────────────── */
.site-footer {
  background: var(--color-mint-dark);
  color: #fff;
  padding: 32px 20px;
  margin-top: 40px;
  font-size: 0.85rem;
}

.site-footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.site-footer a {
  color: #fff;
  opacity: 0.8;
}
.site-footer a:hover {
  opacity: 1;
}

.site-footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.site-footer-copy {
  opacity: 0.7;
  font-size: 0.75rem;
  text-align: center;
}

/* ページトップボタン（マスコット付き） */
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 64px;
  height: 76px;
  border-radius: 18px;
  border: 2px solid var(--color-mint);
  background: #ffffff;
  padding: 0 4px 5px;
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(30, 58, 46, 0.18);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.15s;
  z-index: 50;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  line-height: 1;
}
.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
@media (hover: hover) {
  .back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(30, 58, 46, 0.22);
  }
}
.back-to-top img,
.back-to-top-label {
  pointer-events: none;
}
.back-to-top img {
  width: 50px;
  height: 50px;
  display: block;
  margin-top: -4px;
}
.back-to-top-label {
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--color-mint-dark);
  letter-spacing: 0.08em;
  margin-top: 4px;
}
@media (max-width: 768px) {
  .back-to-top {
    right: 12px;
    bottom: 12px;
    width: 56px;
    height: 66px;
    padding: 0 2px 4px;
  }
  .back-to-top img {
    width: 44px;
    height: 44px;
    margin-top: -4px;
  }
  .back-to-top-label {
    font-size: 0.58rem;
  }
}

/* ─────────────────────────────────────────
   ページ固有：/taishokutodoke/ ピラー
   ───────────────────────────────────────── */

/* パンくず */
.breadcrumb {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 10px 20px;
  font-size: 0.8rem;
}
.breadcrumb-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  color: var(--color-text-sub);
}
.breadcrumb a {
  color: var(--color-navy);
  text-decoration: none;
}
.breadcrumb a:hover {
  text-decoration: underline;
}
.breadcrumb span[aria-hidden="true"] {
  margin: 0 8px;
  color: var(--color-muted);
}

/* 目次 */
.intro-section {
  padding-top: 24px;
  padding-bottom: 4px;
}
.intro-section p {
  margin: 0;
}

.toc-section {
  padding-top: 20px;
  padding-bottom: 0;
}
.toc {
  background: #f5f5f1;
  border-radius: var(--radius);
  padding: 20px 24px;
}
.toc-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-navy-dark);
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}
.toc ol {
  padding-left: 1.4em;
  font-size: 0.9rem;
  line-height: 2;
  margin: 0;
}
.toc a {
  color: var(--color-navy-dark);
  text-decoration: none;
}
.toc a:hover {
  color: var(--color-navy);
  text-decoration: underline;
}

/* 汎用注釈 */
.note {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  background: var(--color-bg);
  padding: 10px 14px;
  border-radius: var(--radius);
  border-left: 3px solid var(--color-border);
  margin: 12px 0;
}

/* テンプレートブロック */
.template-block {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 16px 0 20px;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.template-block pre {
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 0.92rem;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}
.btn-copy {
  display: inline-block;
  margin-top: 14px;
  padding: 8px 16px;
  background: var(--color-coral);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-copy:hover {
  background: var(--color-coral-dark);
}
.btn-copy.is-copied {
  background: var(--color-navy-light);
}

/* 縦書き記入例 */
.vertical-doc {
  background: #fffdf6;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  margin: 16px 0 12px;
  box-shadow: var(--shadow-sm);
  background-image:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 31px,
      rgba(30, 58, 95, 0.05) 31px,
      rgba(30, 58, 95, 0.05) 32px
    );
}
.vertical-doc-inner {
  font-family: var(--font-serif);
  color: var(--color-text);
  line-height: 2;
}
.vd-title {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
  letter-spacing: 0.4em;
  color: var(--color-navy-dark);
}
.vd-body {
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.vd-date {
  font-size: 0.9rem;
  margin: 24px 0 6px;
  text-align: right;
}
.vd-author {
  font-size: 0.95rem;
  text-align: right;
  margin-bottom: 24px;
}
.vd-author .seal {
  display: inline-block;
  width: 1.6em;
  height: 1.6em;
  line-height: 1.6em;
  text-align: center;
  border: 1.5px solid var(--color-coral);
  border-radius: 50%;
  color: var(--color-coral);
  font-size: 0.7rem;
  margin-left: 6px;
  vertical-align: middle;
}
.vd-addressee {
  font-size: 0.95rem;
  margin-top: 8px;
}

/* HowTo 番号付きリスト */
.howto-list {
  list-style: none;
  padding: 0;
  counter-reset: howto;
}
.howto-list > li {
  counter-increment: howto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 20px 18px 64px;
  margin-bottom: 14px;
  position: relative;
}
.howto-list > li::before {
  content: counter(howto);
  position: absolute;
  left: 18px;
  top: 18px;
  width: 32px;
  height: 32px;
  background: var(--color-coral);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.howto-list h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-family: var(--font-serif);
  color: var(--color-heading);
}
.howto-list p {
  font-size: 0.9rem;
  margin: 0;
}

/* コールアウト（内部リンク誘導） */
.callout {
  background: var(--color-accent-soft);
  border-left: 4px solid var(--color-coral);
  padding: 14px 18px;
  border-radius: var(--radius);
  margin: 24px 0;
}
.callout-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 4px;
}
.callout p:last-child {
  margin: 0;
  font-size: 0.9rem;
}

/* リンクカード（関連ページ） */
.link-grid {
  display: grid;
  gap: 12px;
  margin: 16px 0;
}
@media (min-width: 560px) {
  .link-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.link-card {
  display: block;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.15s;
}
.link-card:hover {
  border-color: var(--color-navy);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
  transform: translateY(-1px);
}
.link-card-tag {
  display: inline-block;
  background: var(--color-navy);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 100px;
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}
.link-card-title {
  display: block;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy-dark);
  margin-bottom: 4px;
}
.link-card-desc {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-sub);
  line-height: 1.6;
}

/* ─────────────────────────────────────────
   ページ固有：/taishokutodoke/fuutou/ 封筒
   ───────────────────────────────────────── */

.envelope-figure {
  margin: 16px auto 0;
  max-width: 320px;
  text-align: center;
}
.envelope-svg {
  width: 100%;
  height: auto;
  max-width: 280px;
  display: block;
  margin: 0 auto;
}
.envelope-figure figcaption {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

.fold-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 18px 0 8px;
}
@media (min-width: 560px) {
  .fold-steps {
    grid-template-columns: repeat(4, 1fr);
  }
}
.fold-step {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 10px;
  text-align: center;
}
.fold-svg {
  width: 100%;
  height: auto;
  max-width: 140px;
  display: block;
  margin: 0 auto 8px;
}
.fold-step figcaption {
  font-size: 0.78rem;
  color: var(--color-text-sub);
  line-height: 1.5;
}
.fold-step figcaption strong {
  display: block;
  color: var(--color-coral-dark);
  margin-bottom: 4px;
  font-size: 0.85rem;
}

/* ─────────────────────────────────────────
   ページ固有：/taishokutodoke/riyuu/ 退職理由
   ───────────────────────────────────────── */

.example-block {
  background: #fff;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-navy);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 10px 0 18px;
  font-family: var(--font-serif);
  line-height: 2;
}
.example-block p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text);
}

/* ─────────────────────────────────────────
   ページ固有：/taishoku-daikou/ 比較LP
   ───────────────────────────────────────── */

.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
.service-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.service-card-head h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-heading);
  margin: 0;
}
.service-card-tag {
  display: inline-block;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 100px;
  font-weight: 700;
}
.service-card-tag.col-self {
  background: var(--color-navy);
  color: #fff;
}
.service-card-tag.col-company {
  background: var(--color-coral);
  color: #fff;
}
.service-dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 16px;
  font-size: 0.9rem;
  margin-bottom: 14px;
}
.service-dl dt {
  color: var(--color-text-sub);
  font-weight: 500;
}
.service-dl dd {
  color: var(--color-text);
  font-weight: 600;
}
.cta-btn.disabled {
  background: var(--color-muted);
  color: #fff;
  pointer-events: none;
  cursor: not-allowed;
  box-shadow: 0 3px 0 #7a7a7a;
}

/* ─────────────────────────────────────────
   ページ固有：AI退職届ジェネレーター（タブUI）
   ───────────────────────────────────────── */

.tg-result-tabs {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.tg-tab-nav {
  display: flex;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.tg-tab {
  flex: 1;
  padding: 12px 8px;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--color-text-sub);
  font-weight: 600;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s;
}
.tg-tab:hover {
  background: #fff;
  color: var(--color-navy-dark);
}
.tg-tab.is-active {
  background: #fff;
  color: var(--color-navy);
  border-bottom-color: var(--color-coral);
}
.tg-panel {
  display: none;
  padding: 20px;
}
.tg-panel.is-active {
  display: block;
}
.tg-output {
  background: #ffffff;
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 0.92rem;
  line-height: 1.9;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0 0 12px;
}

/* ─────────────────────────────────────────
   ページ固有：/sitemap/ サイトマップ
   ───────────────────────────────────────── */

.sitemap-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sitemap-list > li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}
.sitemap-list > li:last-child {
  border-bottom: none;
}
.sitemap-list a {
  font-weight: 600;
  color: var(--color-navy-dark);
  text-decoration: none;
  font-size: 0.95rem;
}
.sitemap-list a:hover {
  color: var(--color-coral);
  text-decoration: underline;
}
.sitemap-note {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin-top: 2px;
  font-weight: 400;
}