@charset "UTF-8";

/* ==========================================
   基本設定・リセット
   ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "BIZ UDPGothic", Meiryo, sans-serif;
  line-height: 1.8;
  color: #2c2620;
  background-color: #f9f6f0;
}

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

/* ==========================================
   リンク・ボタンの明確な視認性
   ========================================== */
a {
  color: #0051a8;
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

a:visited {
  color: #4a2c82;
}

a:hover, a:focus {
  color: #c94a00;
  background-color: #fff3d6;
  text-decoration: underline;
}

/* 立体感のある押しやすいボタン */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none !important;
  color: #ffffff !important;
  background-color: #1f6b3b;
  border: 2px solid #144927;
  border-bottom-width: 5px;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.1s ease, background-color 0.15s ease;
}

.btn:hover, .btn:focus {
  background-color: #278549;
  color: #ffffff !important;
  transform: translateY(1px);
}

.btn:active {
  transform: translateY(3px);
  border-bottom-width: 2px;
}

.btn-secondary {
  background-color: #0051a8;
  border-color: #003570;
}

.btn-secondary:hover, .btn-secondary:focus {
  background-color: #0066d1;
}

.btn-craft {
  background-color: #a35d22;
  border-color: #6e3d14;
}

.btn-craft:hover, .btn-craft:focus {
  background-color: #bc6e2b;
}

/* ==========================================
   レイアウトコンテナ（最大幅1000px）
   ========================================== */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ==========================================
   ヘッダー・グローバルナビゲーション
   ========================================== */
.site-header {
  background-color: #ffffff;
  border-top: 6px solid #a35d22;
  border-bottom: 2px solid #dfd5c5;
}

.header-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.site-logo {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.3;
}

.site-logo a {
  color: #2c2620 !important;
  text-decoration: none;
  display: inline-block;
  background: transparent !important;
}

.site-logo .logo-sub {
  display: block;
  font-size: 0.8rem;
  color: #6b5844;
  font-weight: normal;
  margin-top: 2px;
}

.global-nav {
  background-color: #ede4d4;
  border-top: 1px solid #d5c7b2;
}

.nav-list {
  max-width: 1000px;
  margin: 0 auto;
  padding: 10px 16px;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-list li {
  flex: 1 1 auto;
}

.nav-list a {
  display: block;
  padding: 10px 12px;
  text-align: center;
  background-color: #ffffff;
  color: #0051a8 !important;
  border: 2px solid #b8a68e;
  border-bottom-width: 4px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.35;
}

.nav-list a .step-badge {
  display: inline-block;
  background-color: #a35d22;
  color: #ffffff;
  font-size: 0.75rem;
  padding: 1px 6px;
  border-radius: 4px;
  margin-right: 4px;
}

.nav-list a:hover, .nav-list a:focus {
  background-color: #fff8e7;
  border-color: #a35d22;
  color: #c94a00 !important;
}

.nav-list a.active {
  background-color: #2c5e3b;
  border-color: #193822;
  color: #ffffff !important;
}

.nav-list a.active .step-badge {
  background-color: #ffffff;
  color: #2c5e3b;
}

/* ==========================================
   パンくずリスト・学習ステップバー
   ========================================== */
.breadcrumb {
  max-width: 1000px;
  margin: 12px auto 0;
  padding: 0 16px;
  font-size: 0.88rem;
  color: #5c5043;
}

.breadcrumb ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb li + li::before {
  content: "＞";
  margin-right: 6px;
  color: #8c7b68;
}

.step-tracker {
  background-color: #fffdf9;
  border: 2px solid #d5c7b2;
  border-radius: 10px;
  padding: 16px;
  margin: 16px 0 24px;
}

.step-tracker-title {
  margin: 0 0 10px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #5a4632;
}

.step-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.step-flow li {
  position: relative;
}

.step-flow a {
  display: block;
  padding: 10px;
  background-color: #f4efe6;
  border: 2px solid #c5b49b;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.88rem;
  color: #0051a8;
  height: 100%;
}

.step-flow a strong {
  display: block;
  color: #7d4518;
  font-size: 0.8rem;
  margin-bottom: 2px;
}

.step-flow li.current a {
  background-color: #fff3d6;
  border-color: #c94a00;
  color: #2c2620;
  box-shadow: 0 0 0 2px rgba(201, 74, 0, 0.2);
}

.step-flow li.current a strong {
  color: #c94a00;
}

/* ==========================================
   メインコンテンツ領域・見出しデザイン
   ========================================== */
.main-content {
  background-color: #ffffff;
  border: 1px solid #dfd5c5;
  border-radius: 10px;
  padding: 28px 24px;
  margin: 16px 0 32px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.page-header {
  border-bottom: 4px solid #a35d22;
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.page-step-label {
  display: inline-block;
  background-color: #a35d22;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 8px;
}

h1 {
  margin: 0;
  font-size: 1.75rem;
  line-height: 1.4;
  color: #241e18;
}

.lead-box {
  background-color: #fdf8ee;
  border: 2px solid #e0cba8;
  border-radius: 8px;
  padding: 18px 20px;
  margin-bottom: 28px;
  font-size: 1.02rem;
}

.lead-box p {
  margin: 0 0 10px;
}

.lead-box p:last-child {
  margin-bottom: 0;
}

/* 目次ボックス */
.toc-box {
  background-color: #f4f7f9;
  border: 2px solid #b8cad8;
  border-radius: 8px;
  padding: 18px 22px;
  margin: 24px 0 32px;
}

.toc-title {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #1c3d5a;
}

.toc-list {
  margin: 0;
  padding-left: 22px;
}

.toc-list li {
  margin-bottom: 6px;
}

h2 {
  font-size: 1.4rem;
  line-height: 1.4;
  color: #241e18;
  background-color: #f3ece1;
  border-left: 8px solid #a35d22;
  border-bottom: 2px solid #d5c7b2;
  padding: 12px 16px;
  margin: 40px 0 20px;
  border-radius: 0 6px 6px 0;
}

h3 {
  font-size: 1.18rem;
  line-height: 1.45;
  color: #1f4e30;
  border-bottom: 2px dashed #9ab8a4;
  padding-bottom: 6px;
  margin: 28px 0 14px;
}

p {
  margin: 0 0 16px;
}

/* ==========================================
   図解・イラスト表示枠
   ========================================== */
.figure-box {
  margin: 24px 0 28px;
  padding: 16px;
  background-color: #faf7f2;
  border: 2px solid #dfd5c5;
  border-radius: 8px;
  text-align: center;
}

.figure-box img {
  border-radius: 4px;
  border: 1px solid #d5c7b2;
  max-height: 540px;
  width: auto;
}

.figure-caption {
  margin-top: 10px;
  font-size: 0.9rem;
  color: #524639;
  text-align: left;
  background-color: #ffffff;
  padding: 8px 12px;
  border-radius: 4px;
  border-left: 4px solid #a35d22;
}

/* ==========================================
   ポイント解説・豆知識・比較表
   ========================================== */
.point-box {
  background-color: #f2f9f5;
  border: 2px solid #88bfa0;
  border-radius: 8px;
  padding: 18px 20px;
  margin: 24px 0;
}

.point-title {
  margin: 0 0 8px;
  font-weight: 700;
  font-size: 1.05rem;
  color: #1a5c35;
}

.warn-box {
  background-color: #fff9f2;
  border: 2px solid #e0a96d;
  border-radius: 8px;
  padding: 18px 20px;
  margin: 24px 0;
}

.warn-title {
  margin: 0 0 8px;
  font-weight: 700;
  font-size: 1.05rem;
  color: #9c4700;
}

.table-scroll {
  overflow-x: auto;
  margin: 20px 0 28px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
  background-color: #ffffff;
}

.data-table th,
.data-table td {
  border: 1px solid #c5b49b;
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background-color: #ede4d4;
  color: #2c2620;
  font-weight: 700;
  width: 26%;
}

.data-table tr:nth-child(even) td {
  background-color: #fcfaf7;
}

/* 順序案内カードグリッド（トップページ等） */
.guide-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 24px 0;
}

.guide-card {
  border: 2px solid #c9b79c;
  border-radius: 10px;
  background-color: #fffdf9;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.guide-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 2px solid #ece3d5;
  padding-bottom: 10px;
}

.guide-step-num {
  background-color: #a35d22;
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  padding: 6px 14px;
  border-radius: 6px;
  white-space: nowrap;
}

.guide-card-title {
  margin: 0;
  font-size: 1.25rem;
}

.guide-card-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 18px;
  align-items: center;
}

.guide-card-img img {
  border-radius: 6px;
  border: 1px solid #d5c7b2;
  width: 100%;
}

.guide-card-action {
  margin-top: 8px;
}

/* ==========================================
   前後のページ送りナビゲーション（順序案内）
   ========================================== */
.pager-nav {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 3px solid #dfd5c5;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.pager-item {
  flex: 1 1 280px;
}

.pager-item.next {
  text-align: right;
}

.pager-label {
  display: block;
  font-size: 0.85rem;
  color: #6b5844;
  margin-bottom: 6px;
  font-weight: 700;
}

/* ==========================================
   フッター（全ページ共通＋AI免責表記）
   ========================================== */
.site-footer {
  background-color: #2c2620;
  color: #f4efe6;
  padding: 32px 0 24px;
  border-top: 6px solid #a35d22;
  font-size: 0.92rem;
}

.footer-nav-section {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid #524639;
}

.footer-title {
  margin: 0 0 12px;
  font-size: 1rem;
  color: #f3c88b;
  font-weight: 700;
}

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

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #a8d4ff !important;
  text-decoration: underline;
}

.footer-links a:hover,
.footer-links a:focus {
  color: #2c2620 !important;
  background-color: #fff3d6;
}

.footer-disclaimer {
  margin-top: 20px;
  padding: 12px 16px;
  background-color: #3b332b;
  border-left: 4px solid #f3c88b;
  border-radius: 4px;
  font-size: 0.84rem;
  color: #e6ddd0;
  line-height: 1.6;
}

.footer-copy {
  margin-top: 16px;
  text-align: center;
  font-size: 0.82rem;
  color: #b8a998;
}

/* ==========================================
   レスポンシブ対応（タブレット・スマホ）
   ========================================== */
@media (max-width: 768px) {
  h1 {
    font-size: 1.4rem;
  }

  h2 {
    font-size: 1.2rem;
    padding: 10px 12px;
  }

  .main-content {
    padding: 20px 16px;
  }

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

  .guide-card-body {
    grid-template-columns: 1fr;
  }

  .footer-nav-section {
    grid-template-columns: 1fr;
  }

  .pager-item.next {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .nav-list {
    flex-direction: column;
  }

  .step-flow {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }
}