:root {
  --color-bg: #efe6ce;
  --color-surface: #f8f2e3;
  --color-border: #dbcba0;
  --color-text: #2b2620;
  --color-text-muted: #6e6248;
  --color-primary: #a8631f;
  --color-primary-hover: #8b5119;
  --color-primary-contrast: #fbf3e2;
  --color-accent: #55704a;
  --color-badge-bg: #e4d6ae;
  --color-badge-text: #6e4a1e;
  --color-warn-bg: #efd3c0;
  --color-warn-text: #8a4322;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --shadow-card: 0 2px 8px rgba(43, 38, 32, 0.12);
  --max-width: 640px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #211f1a;
    --color-surface: #2c2a22;
    --color-border: #423e30;
    --color-text: #f1e9d8;
    --color-text-muted: #b3a585;
    --color-primary: #e3a23b;
    --color-primary-hover: #edb259;
    --color-primary-contrast: #241c0d;
    --color-accent: #8fae7d;
    --color-badge-bg: #3a3626;
    --color-badge-text: #e3a23b;
    --color-warn-bg: #3d2a1d;
    --color-warn-text: #e0a876;
    --shadow-card: 0 2px 14px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, "Yu Gothic", sans-serif;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

.app {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.app-header {
  text-align: center;
  margin-bottom: 24px;
}

.app-header__eyebrow {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin: 0 0 8px;
}

.app-header__title {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0 0 12px;
}

.app-header__lead {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin: 0;
}

.main { display: block; }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 24px 20px;
  margin-bottom: 16px;
}

.card--intro { text-align: center; }

.intro-points {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  text-align: left;
  display: inline-block;
}

.intro-points li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  color: var(--color-text);
}

.intro-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.intro-disclaimer {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin: 16px 0 0;
}

.btn {
  display: inline-block;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 20px;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}
.btn--primary:hover { background: var(--color-primary-hover); }
.btn--primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover { color: var(--color-text); border-color: var(--color-text-muted); }

.btn--large { width: 100%; padding: 14px 20px; font-size: 1.05rem; }
.btn--skip { margin-left: auto; }

.progress {
  height: 6px;
  background: var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress__bar {
  height: 100%;
  width: 0%;
  background: var(--color-primary);
  transition: width 0.25s ease;
}

.progress__label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin: 0 0 16px;
  text-align: right;
}

.card--quiz { min-height: 220px; }

.quiz-question {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 6px;
}

.quiz-question__note {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin: 0 0 18px;
}

.quiz-options {
  display: grid;
  gap: 10px;
}

.quiz-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.quiz-option:hover {
  border-color: var(--color-primary);
}

.quiz-option.is-selected {
  border-color: var(--color-primary);
  background: var(--color-badge-bg);
  font-weight: 700;
}

.quiz-select {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.95rem;
}

.quiz-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.result-summary {
  text-align: center;
  margin-bottom: 20px;
}

.result-summary__count {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0 0 4px;
}

.result-summary__note {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin: 0;
}

.result-list {
  display: grid;
  gap: 14px;
  margin-bottom: 20px;
}

.result-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 18px 18px 16px;
}

.result-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--color-badge-bg);
  color: var(--color-badge-text);
}

.badge--accent {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}

.badge--warn {
  background: var(--color-warn-bg);
  color: var(--color-warn-text);
}

.result-card__name {
  font-size: 1.05rem;
  font-weight: 800;
  margin: 0 0 6px;
}

.result-card__benefit {
  color: var(--color-accent);
  font-weight: 700;
  margin: 0 0 4px;
}

.result-card__org {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0 0 12px;
}

.result-card__summary {
  font-size: 0.88rem;
  margin: 0 0 10px;
}

.result-card__conditions {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin: 0 0 14px;
}

.result-card__checked {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--color-border);
}

.result-card__related {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
}

.result-card__related-heading {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin: 0 0 6px;
}

.result-card__related-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.result-card__related-list a {
  font-size: 0.85rem;
  color: var(--color-primary);
  text-decoration: none;
}

.result-card__related-list a:hover { text-decoration: underline; }

.cross-link-banner {
  display: block;
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--color-badge-bg);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--color-badge-text);
  text-decoration: none;
  font-weight: 700;
}

.cross-link-banner:hover { opacity: 0.85; }

.result-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.result-card__link {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  padding: 8px 14px;
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.result-card__link:hover { background: var(--color-badge-bg); }

.result-card__link--offer {
  color: var(--color-accent);
  border-color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge--pr {
  background: var(--color-accent);
  color: var(--color-primary-contrast);
  font-size: 0.62rem;
  padding: 2px 6px;
}

.result-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 24px 12px;
}

.ad-slot {
  min-height: 90px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  margin-bottom: 20px;
}

.card--lead { text-align: center; }
.card__title { font-size: 1rem; margin: 0 0 8px; }

.lead-form {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.lead-form__input {
  flex: 1;
  padding: 10px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
}

.app-footer {
  margin-top: 24px;
  text-align: center;
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.sp-only { display: inline; }

@media (min-width: 640px) {
  .app-header__title { font-size: 2rem; }
  .sp-only { display: none; }
}

/* --- SEO個別ページ・一覧ページ用 --- */

.breadcrumb {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }

.detail-card__title {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 4px 0 8px;
  text-wrap: balance;
}
.detail-card__org {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0 0 14px;
}
.detail-card__summary { margin: 0 0 18px; }

.detail-fields { margin: 0 0 18px; }
.detail-field { margin-bottom: 14px; }
.detail-field dt {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.detail-field dd { margin: 0; }

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.detail-cta { text-align: center; }
.detail-back {
  text-align: center;
  font-size: 0.85rem;
  margin: 8px 0 24px;
}
.detail-back a { color: var(--color-primary); }

.result-card__link--detail {
  color: var(--color-text-muted);
  border-color: var(--color-border);
}
.result-card__link--detail:hover { background: var(--color-badge-bg); }

.seido-list__section { margin-bottom: 28px; }
.seido-list__heading {
  font-size: 1.1rem;
  font-weight: 800;
  margin: 0 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}
.seido-list__group {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.seido-list__link {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  text-decoration: none;
  color: var(--color-text);
  box-shadow: var(--shadow-card);
}
.seido-list__link:hover { border-color: var(--color-primary); }
.seido-list__name {
  display: block;
  font-weight: 700;
  margin: 6px 0 4px;
}
.seido-list__summary {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* --- 解説記事セクション(トップページ・一覧ページ) --- */

.article-lead {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin: -8px 0 20px;
}

.card--article h2 {
  font-size: 1.05rem;
  margin: 0 0 12px;
}
.card--article p {
  font-size: 0.9rem;
  margin: 0 0 12px;
}
.card--article p:last-child { margin-bottom: 0; }
.card--article ul {
  font-size: 0.9rem;
  margin: 0 0 12px;
  padding-left: 22px;
}

.faq-item {
  border-bottom: 1px dashed var(--color-border);
  padding: 12px 0;
}
.faq-item:first-of-type { padding-top: 0; }
.faq-item:last-child { border-bottom: none; padding-bottom: 0; }
.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 0.9rem;
  list-style: revert;
}
.faq-item summary::marker { color: var(--color-primary); }
.faq-item p {
  margin: 8px 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}