/* ==========================================================================
   guide/index.php のページ固有CSS
   出典: 元HTMLの <style> をそのまま外部化したもの。値の統合・整理はしていない。
   ========================================================================== */

/* ==========================================================================
   Grand Design Tokens & Reset
   ========================================================================== */
:root {
  --color-primary: #3F6654;        /* ディープグリーン (メインCTA・重要要素) */
  --color-primary-hover: #325344;
  --color-sub: #E8F0EB;            /* ソフトグリーン (背景アクセント・タブ) */
  --color-sub-light: #F2F7F4;
  --color-accent: #D9824B;         /* ウォームオレンジ (補足・アクセント) */
  --color-bg-base: #FFFFFF;        /* ベース背景 */
  --color-bg-sub: #F7F8F6;         /* サブ背景 */
  --color-text-main: #2B2B2B;      /* メインテキスト */
  --color-text-sub: #666666;       /* サブテキスト */
  --color-text-muted: #888888;
  --color-border: #E2E6E3;
  --color-border-dark: #C8D1CA;

  --font-family-base: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --max-width: 1000px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-subtle: 0 4px 20px rgba(63, 102, 84, 0.06);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.04);
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-family-base);
  color: var(--color-text-main);
  background-color: var(--color-bg-sub);
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Accessibility Focus */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* ==========================================================================
   Header Component (Grand共通 厳格設計)
   ========================================================================== */
.site-header {
  background-color: var(--color-bg-base);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.brand-logo img {
  width: auto;
  height: 40px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-main);
  border-radius: var(--radius-sm);
}

.header-nav-link:hover {
  background-color: var(--color-sub);
  color: var(--color-primary);
}

.header-nav-link svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.cart-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 10px;
  line-height: 1;
}

/* ==========================================================================
   Breadcrumb Area
   ========================================================================== */
.breadcrumb-area {
  background-color: var(--color-bg-base);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  font-size: 14px;
  color: var(--color-text-sub);
  gap: 8px;
}

.breadcrumb-item a {
  color: var(--color-text-sub);
}

.breadcrumb-item a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-text-muted);
  font-size: 12px;
  user-select: none;
}

.breadcrumb-item[aria-current="page"] {
  color: var(--color-text-main);
  font-weight: 500;
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */
.main-content {
  flex: 1;
  padding: 48px 24px 96px;
}

.guide-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-header-block {
  margin-bottom: 32px;
  text-align: left;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
  position: relative;
  padding-bottom: 14px;
}

.page-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 4px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.page-intro-lead {
  font-size: 16px;
  color: var(--color-text-sub);
  line-height: 1.8;
}

/* Anchor Navigation Card */
.anchor-nav-card {
  background-color: var(--color-bg-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 48px;
  box-shadow: var(--shadow-card);
}

.anchor-nav-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.04em;
}

.anchor-nav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  list-style: none;
}

.anchor-nav-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--color-bg-sub);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-main);
}

.anchor-nav-btn:hover {
  background-color: var(--color-sub);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.anchor-nav-btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  flex-shrink: 0;
}

/* Guide Sections */
.guide-section {
  background-color: var(--color-bg-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px 36px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-card);
}

.section-heading {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--color-sub);
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-heading svg {
  width: 26px;
  height: 26px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.section-lead {
  font-size: 16px;
  color: var(--color-text-sub);
  margin-bottom: 24px;
}

/* Step Flow Grid & Items */
.flow-steps-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 28px;
}

.flow-step-card {
  background-color: var(--color-bg-sub);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-number-badge {
  min-width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.step-content-body {
  flex: 1;
}

.step-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.step-desc {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* Highlight Banner Box */
.highlight-box-green {
  background-color: var(--color-sub-light);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 24px;
  margin-bottom: 24px;
}

.highlight-box-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.highlight-box-desc {
  font-size: 15px;
  color: var(--color-text-main);
  line-height: 1.8;
}

/* Brand List (Cards) */
.brand-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 16px 0 24px;
}

.brand-card {
  background-color: var(--color-bg-base);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
  font-weight: 700;
  font-size: 15px;
  color: var(--color-text-main);
}

/* Subsections */
.sub-block {
  margin-bottom: 28px;
}

.sub-block:last-child {
  margin-bottom: 0;
}

.sub-heading {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sub-heading::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 18px;
  background-color: var(--color-primary);
  border-radius: 3px;
}

.text-paragraph {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.8;
  margin-bottom: 12px;
}

.styled-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  padding-left: 4px;
}

.styled-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.7;
}

.styled-list li::before {
  content: "・";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* Bottom Nav Links Area */
.guide-bottom-navs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.nav-card-block {
  background-color: var(--color-bg-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  text-align: center;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-card-heading {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-main);
}

.nav-card-desc {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.7;
}

.btn-nav-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 32px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
  width: 100%;
  max-width: 280px;
}

.btn-nav-action:hover {
  background-color: var(--color-primary-hover);
}

.btn-nav-action.btn-outline {
  background-color: var(--color-bg-base);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-nav-action.btn-outline:hover {
  background-color: var(--color-sub);
}

/* ==========================================================================
   Footer Component (Grand共通 3グループ構成)
   ========================================================================== */
.site-footer {
  background-color: #ffffff;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
  padding: 64px 24px 32px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 56px;
}

.footer-group-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-text-sub);
}

.footer-links a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
  text-align: center;
}

.copyright {
  font-size: 13px;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 860px) {
  .anchor-nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .guide-bottom-navs {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 600px) {
  .main-content {
    padding: 32px 16px 64px;
  }

  .guide-section {
    padding: 28px 20px;
  }

  .anchor-nav-card {
    padding: 20px 16px;
  }

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

  .flow-step-card {
    flex-direction: column;
    gap: 12px;
    padding: 16px 18px;
  }

  .page-title {
    font-size: 26px;
  }
}