/* Simple sub pages (company, guides, articles, training list …) in the AI研修.com UI. */
.mock-page {
  --mock-navy: var(--color-navy, #102A43);
  --mock-text: var(--color-text, #1E3A50);
  --mock-muted: var(--color-text-muted, #587083);
  --mock-primary: var(--color-primary, #2E4A61);
  --mock-primary-hover: var(--color-primary-hover, #26415A);
  --mock-border: var(--color-border, #D9E5E8);
  --mock-soft: var(--color-bg-blue, #F7FAFC);
  --mock-radius: 12px;
  --mock-shadow: 0 1px 3px rgba(15, 39, 62, .06), 0 8px 24px rgba(15, 39, 62, .05);
  margin: 0;
  color: var(--mock-text);
  background: var(--color-bg-page, #F7FAFC);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.mock-page *,
.mock-page *::before,
.mock-page *::after { box-sizing: border-box; }
.mock-page img { max-width: 100%; height: auto; }
.mock-page a { color: inherit; }

.mock-container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

/* Header */
.mock-header { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid var(--c-border); background: rgba(255, 255, 255, .96); backdrop-filter: blur(8px); }
.mock-header__inner { display: flex; width: min(1276px, calc(100% - 40px)); min-height: 64px; align-items: center; gap: 40px; margin: 0 auto; }
.mock-header__brand { display: block; width: 164px; flex: 0 0 164px; }
.mock-header__brand img { display: block; width: 100%; height: auto; }
.mock-header__nav { display: flex; flex: 1; align-items: center; gap: clamp(18px, 2.2vw, 36px); }
.mock-header__nav a { color: var(--mock-navy); font-size: 14px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.mock-header__nav a:hover,
.mock-header__nav a[aria-current="page"] { color: var(--mock-primary); }
.mock-header__cta { display: inline-flex; min-height: 44px; align-items: center; padding: 0 22px; border: 1px solid rgba(255, 255, 255, .18); border-radius: 9px; color: #fff !important; background: var(--gradient-accent-cta, linear-gradient(135deg, #0A8B82 0%, #066962 100%)); box-shadow: 0 5px 14px rgba(15, 125, 118, .2); font-size: 14px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.mock-header__cta:hover { background: var(--gradient-accent-cta-hover, linear-gradient(135deg, var(--c-ai-deep) 0%, var(--c-action) 100%)); }
.mock-header__menu { display: none; width: 42px; height: 42px; padding: 9px; border: 1px solid var(--mock-border); border-radius: 8px; background: #fff; cursor: pointer; }
.mock-header__menu span { display: block; height: 2px; margin: 4px 0; background: var(--mock-navy); }

/* Hero */
.mock-hero { padding: 28px 0 40px; border-bottom: 1px solid var(--mock-border); background: linear-gradient(155deg, var(--c-bg) 0%, var(--c-surface-muted) 100%); }
.mock-breadcrumb { display: flex; flex-wrap: wrap; gap: 6px; color: var(--mock-muted); font-size: 13px; }
.mock-breadcrumb a { color: var(--mock-primary); text-decoration: none; }
.mock-breadcrumb span:last-child { overflow: hidden; max-width: 40ch; text-overflow: ellipsis; white-space: nowrap; }
.mock-hero__eyebrow { margin: 22px 0 4px; color: var(--mock-primary); font-size: 14px; font-weight: 700; letter-spacing: .08em; }
.mock-hero__title { max-width: 900px; margin: 0; color: var(--mock-navy); font-size: clamp(24px, 3.2vw, 36px); font-weight: 800; line-height: 1.4; letter-spacing: -.01em; }
.mock-hero__lead { max-width: 820px; margin: 12px 0 0; color: var(--mock-muted); font-size: 15px; line-height: 1.8; }

/* Layout */
.mock-main { padding-bottom: 72px; }
.mock-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; align-items: start; gap: 32px; margin-top: 36px; }
.mock-layout--single { grid-template-columns: minmax(0, 1fr); }
.mock-content { display: grid; min-width: 0; gap: 24px; }
.mock-card { padding: 32px; border: 1px solid var(--mock-border); border-radius: var(--mock-radius); background: #fff; box-shadow: var(--mock-shadow); }
.mock-section-title { display: flex; align-items: baseline; gap: 10px; margin: 0 0 16px; color: var(--mock-navy); font-size: 20px; font-weight: 800; line-height: 1.5; }
.mock-section-title span { color: var(--mock-muted); font-size: 13px; font-weight: 500; }
.mock-count { margin: 0; color: var(--mock-muted); font-size: 14px; }

/* Rich text extracted from the legacy pages */
.mock-body > :first-child { margin-top: 0; }
.mock-body > :last-child { margin-bottom: 0; }
.mock-body h2 { margin: 36px 0 14px; padding-left: 12px; border-left: 4px solid var(--mock-primary); color: var(--mock-navy); font-size: 20px; font-weight: 800; line-height: 1.5; }
.mock-body h3 { margin: 28px 0 10px; color: var(--mock-navy); font-size: 17px; font-weight: 700; line-height: 1.6; }
.mock-body h4 { margin: 20px 0 8px; font-size: 16px; }
.mock-body p { margin: 0 0 14px; }
.mock-body ul, .mock-body ol { margin: 0 0 14px; padding-left: 0; list-style: none; }
.mock-body li { margin: 4px 0; }
.mock-body li ul { margin: 6px 0 6px 1em; }
.mock-body a { color: var(--mock-primary); text-decoration: underline; text-underline-offset: 3px; }
.mock-body small { color: var(--mock-muted); font-size: 13px; }
.mock-body .mock-accent { color: var(--mock-primary); font-weight: 700; }
.mock-body dl { display: grid; grid-template-columns: 200px minmax(0, 1fr); margin: 0; border-top: 1px solid var(--mock-border); }
.mock-body dl:last-of-type { border-bottom: 1px solid var(--mock-border); }
.mock-body dl + dl { border-top: 0; }
.mock-body dt, .mock-body dd { margin: 0; padding: 14px 16px; border-bottom: 1px solid var(--mock-border); }
.mock-body dl > :nth-last-child(-n+2) { border-bottom: 0; }
.mock-body dt { color: var(--mock-navy); background: var(--mock-soft); font-size: 15px; font-weight: 700; }
.mock-body dd { min-width: 0; }
.mock-body dd:first-child { grid-column: 1 / -1; }
.mock-body dd > :last-child { margin-bottom: 0; }
.mock-body .mock-q { margin: 32px 0 10px; padding: 12px 16px; border-radius: 8px; color: var(--mock-navy); background: var(--mock-soft); font-size: 16px; }
.mock-body .mock-a { margin: 0 0 8px; }

/* Buttons */
.mock-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
.mock-actions--center { justify-content: center; }
.mock-button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid var(--color-accent, #087D76); border-radius: 8px; color: #fff !important; background: var(--color-accent, #087D76); font: inherit; font-size: 15px; font-weight: 700; line-height: 1.4; text-decoration: none !important; cursor: pointer; transition: background .2s ease; }
.mock-button:hover { background: var(--color-accent-hover, #066962); border-color: var(--color-accent-hover, #066962); }
.mock-button--outline { color: var(--color-accent-deep, #0A8B82) !important; background: #fff; }
.mock-button--outline:hover { background: var(--color-accent-bg, #EAF7F5); }
.mock-button--large { min-width: 280px; min-height: 56px; font-size: 16px; }
.mock-button[disabled], .mock-button[aria-disabled="true"] { border-color: var(--btn-disabled-border, #D9E5E8); color: var(--btn-disabled-text, #8C9BA6) !important; background: var(--btn-disabled-bg, #EEF2F5); cursor: not-allowed; }

/* Aside */
.mock-aside { position: sticky; top: 88px; display: grid; gap: 16px; }
.mock-aside__card { padding: 22px; border: 1px solid var(--mock-border); border-radius: var(--mock-radius); background: #fff; box-shadow: var(--mock-shadow); font-size: 14px; line-height: 1.7; }
.mock-aside__card p { margin: 0 0 12px; }
.mock-aside__card .mock-button { width: 100%; }
.mock-aside__card--primary { border-color: transparent; color: #fff; background: var(--gradient-accent-cta, linear-gradient(145deg, var(--c-ai-deep), #0A8B82)); }
.mock-aside__card--primary .mock-button { color: var(--color-accent-deep, #0A8B82) !important; background: #fff; border-color: #fff; }
.mock-aside__kicker { font-size: 12px; font-weight: 700; opacity: .9; }
.mock-aside__title { color: inherit; font-size: 16px; font-weight: 800; }
.mock-aside__card:not(.mock-aside__card--primary) .mock-aside__title { color: var(--mock-navy); }
.mock-aside__links { display: grid; gap: 2px; }
.mock-aside__links a { padding: 8px 0; border-top: 1px solid var(--mock-border); color: var(--mock-text); text-decoration: none; }
.mock-aside__links a::after { content: "›"; float: right; color: var(--mock-primary); }

/* Tags */
.mock-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.mock-tag { display: inline-flex; min-height: 24px; align-items: center; padding: 2px 9px; border-radius: 999px; color: var(--c-ink-body); background: var(--c-surface-muted); font-size: 12px; font-weight: 700; line-height: 1.4; }
.mock-tag--time { color: var(--mock-muted); background: var(--c-surface-muted); }

/* Article cards */
.mock-article-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin: 0; padding: 0; list-style: none; }
.mock-article-grid--compact { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.mock-article-card a { display: flex; height: 100%; flex-direction: column; overflow: hidden; border: 1px solid var(--mock-border); border-radius: var(--mock-radius); background: #fff; box-shadow: var(--mock-shadow); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.mock-article-card a:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(15, 39, 62, .1); }
.mock-article-card img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.mock-article-card__body { display: flex; flex: 1; flex-direction: column; gap: 8px; padding: 16px 18px 18px; }
.mock-article-card__title { margin: 0; color: var(--mock-navy); font-size: 16px; font-weight: 700; line-height: 1.55; }
.mock-article-grid--compact .mock-article-card__title { font-size: 14px; }
.mock-article-card__text { display: -webkit-box; overflow: hidden; margin: 0; color: var(--mock-muted); font-size: 14px; line-height: 1.7; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.mock-article-card__date { margin: auto 0 0; color: var(--mock-muted); font-size: 13px; }
.mock-related { margin-top: 8px; }

/* Article detail */
.mock-article__meta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 18px; color: var(--mock-muted); font-size: 14px; }
.mock-article__visual { margin: 0 0 28px; }
.mock-article__visual img { display: block; width: 100%; aspect-ratio: 16 / 7; border-radius: 10px; object-fit: cover; }
.mock-article__visual figcaption { margin-top: 6px; color: var(--mock-muted); font-size: 12px; text-align: right; }

/* Training list and detail */
.mock-group + .mock-group { margin-top: 12px; }
.mock-training-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 0; padding: 0; list-style: none; }
.mock-training-card a { display: flex; height: 100%; flex-direction: column; overflow: hidden; border: 1px solid var(--mock-border); border-radius: var(--mock-radius); background: #fff; box-shadow: var(--mock-shadow); text-decoration: none; }
.mock-training-card img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.mock-training-card__body { display: flex; flex: 1; flex-direction: column; gap: 10px; padding: 14px 16px 16px; }
.mock-training-card__name { color: var(--mock-navy); font-size: 15px; font-weight: 700; line-height: 1.55; }
.mock-training-summary { display: grid; grid-template-columns: 240px minmax(0, 1fr); align-items: center; gap: 28px; }
.mock-training-summary img { display: block; width: 100%; aspect-ratio: 4 / 3; border-radius: 10px; object-fit: cover; }
.mock-training-summary__category { margin: 0; color: var(--mock-primary); font-size: 14px; font-weight: 700; }
.mock-training-summary__name { margin: 4px 0 0; color: var(--mock-navy); font-size: 22px; font-weight: 800; line-height: 1.5; }

/* Login form */
.mock-form { display: grid; max-width: 520px; gap: 18px; margin: 0 auto; }
.mock-form label { display: grid; gap: 6px; color: var(--mock-navy); font-size: 14px; font-weight: 700; }
.mock-form input { min-height: 48px; padding: 0 14px; border: 1px solid var(--c-border); border-radius: 8px; font: inherit; font-weight: 400; }
.mock-form input:focus { border-color: var(--mock-primary); outline: 3px solid rgba(55, 85, 113, .18); }
.mock-form__status { min-height: 1.8em; margin: 0; color: var(--mock-primary); font-size: 14px; text-align: center; }
.mock-form__links { margin: 12px 0 0; font-size: 14px; text-align: center; }
.mock-form__links a { color: var(--mock-primary); }

/* Sitemap */
.mock-sitemap { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 32px; }
.mock-sitemap__group h2 { margin: 0 0 10px; padding-bottom: 8px; border-bottom: 2px solid var(--mock-primary); color: var(--mock-navy); font-size: 17px; }
.mock-sitemap__group ul { margin: 0; padding: 0; list-style: none; }
.mock-sitemap__group li { padding: 5px 0; font-size: 15px; line-height: 1.6; }
.mock-sitemap__group a { color: var(--mock-text); text-decoration: none; }
.mock-sitemap__group a:hover { color: var(--mock-primary); text-decoration: underline; }
.mock-sitemap__group a::before { content: "›"; margin-right: 6px; color: var(--mock-primary); }
.mock-sitemap__group--wide { grid-column: 1 / -1; }
.mock-sitemap__group--wide ul { columns: 2; column-gap: 32px; }
.mock-sitemap__group--wide li { break-inside: avoid; }

/* Footer: the shared top-page footer only needs list/link resets here. */
.mock-page .ai-footer ul { margin: 0; padding: 0; list-style: none; }
.mock-page .ai-footer a { text-decoration: none; }
.mock-page .ai-footer h2, .mock-page .ai-footer p { margin: 0; }

@media (max-width: 1100px) {
  .mock-header__inner { gap: 20px; }
  .mock-header__nav { gap: 16px; }
  .mock-header__nav a { font-size: 13px; }
  .mock-layout { grid-template-columns: minmax(0, 1fr); }
  .mock-aside { position: static; grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .mock-header__inner { position: relative; min-height: 58px; }
  .mock-header__brand { width: 128px; flex-basis: 128px; }
  .mock-header__nav { position: absolute; top: 64px; right: 0; left: 0; display: none; padding: 8px 12px; border: 1px solid var(--mock-border); border-radius: 10px; background: #fff; box-shadow: var(--mock-shadow); }
  .mock-header__nav.is-open { display: grid; }
  .mock-header__nav a { display: flex; min-height: 44px; align-items: center; border-bottom: 1px solid var(--c-surface-muted); font-size: 15px; }
  .mock-header__cta { margin-left: auto; min-height: 40px; padding: 0 14px; font-size: 13px; }
  .mock-header__menu { display: block; flex-shrink: 0; }
  .mock-training-grid, .mock-article-grid--compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mock-sitemap { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  .mock-container { width: calc(100% - 32px); }
  .mock-header__inner { width: calc(100% - 32px); gap: 10px; }
  .mock-hero { padding: 18px 0 28px; }
  .mock-hero__eyebrow { margin-top: 16px; font-size: 12px; }
  .mock-hero__lead { font-size: 14px; }
  .mock-layout { gap: 20px; margin-top: 20px; }
  .mock-content { gap: 16px; }
  .mock-card { padding: 20px 16px; }
  .mock-body { font-size: 15px; }
  .mock-body h2 { margin-top: 28px; font-size: 18px; }
  .mock-body dl { grid-template-columns: minmax(0, 1fr); }
  .mock-body dt { padding: 10px 12px; border-bottom: 0; }
  .mock-body dd { padding: 10px 12px 14px; }
  .mock-body dl > :nth-last-child(2):is(dt) { border-bottom: 0; }
  .mock-aside { grid-template-columns: minmax(0, 1fr); }
  .mock-article-grid, .mock-article-grid--compact, .mock-training-grid { grid-template-columns: minmax(0, 1fr); }
  .mock-training-summary { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .mock-training-summary__name { font-size: 19px; }
  .mock-actions .mock-button, .mock-button--large { width: 100%; min-width: 0; }
  .mock-sitemap { grid-template-columns: minmax(0, 1fr); }
  .mock-sitemap__group--wide ul { columns: 1; }
  .mock-breadcrumb span:last-child { max-width: 20ch; }
}

@media (max-width: 400px) {
  .mock-header__cta { padding: 0 10px; font-size: 12px; }
  .mock-header__brand { width: 108px; flex-basis: 108px; }
}

@media (prefers-reduced-motion: reduce) {
  .mock-article-card a, .mock-button { transition: none; }
  .mock-article-card a:hover { transform: none; }
}