/* ===================================================
   simulation-pps.com — Main Stylesheet
   Japanese business simulation training content site
   Mobile-first, pure CSS, no frameworks
   =================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #1a365d;
  --color-primary-light: #2a4a7f;
  --color-primary-dark: #0f2240;
  --color-accent: #e8f0fe;
  --color-accent-mid: #c5d8fc;
  --color-link: #1a56db;
  --color-link-hover: #1245b5;
  --color-text: #1a202c;
  --color-text-muted: #4a5568;
  --color-text-light: #718096;
  --color-border: #e2e8f0;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f9fc;
  --color-bg-dark: #1a365d;
  --color-success: #276749;

  --font-base: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans',
    Meiryo, 'Yu Gothic', sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 1.875rem;
  --font-size-3xl: 2.25rem;
  --font-size-4xl: 3rem;

  --line-height-tight: 1.4;
  --line-height-base: 1.8;
  --line-height-loose: 2.0;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;

  --container-max: 1100px;
  --container-narrow: 720px;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Skip link for accessibility --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: #fff;
  font-size: var(--font-size-sm);
  z-index: 9999;
  text-decoration: none;
}
.skip-link:focus {
  top: 0;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--line-height-tight);
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-md); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

@media (min-width: 768px) {
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
}

p {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-base);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-link-hover);
}

ul, ol {
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-xs);
  line-height: var(--line-height-base);
}

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

strong {
  font-weight: 700;
}

em {
  font-style: italic;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

.container--narrow {
  max-width: var(--container-narrow);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
  }
}

/* ===================================================
   HEADER & NAVIGATION
   =================================================== */

.site-header {
  background-color: var(--color-primary);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

@media (min-width: 768px) {
  .site-header .container {
    height: 70px;
  }
}

/* Logo */
.site-logo {
  text-decoration: none;
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.site-logo__name {
  font-size: var(--font-size-md);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  letter-spacing: 0.01em;
}

.site-logo__tagline {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.2;
  letter-spacing: 0.02em;
}

@media (min-width: 768px) {
  .site-logo__name {
    font-size: var(--font-size-lg);
  }
  .site-logo__tagline {
    font-size: var(--font-size-sm);
  }
}

/* Desktop Nav */
.site-nav {
  display: none;
}

@media (min-width: 768px) {
  .site-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
  }
}

.site-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: var(--spacing-xs);
}

.site-nav__link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link--active {
  background-color: rgba(255, 255, 255, 0.15);
  color: #fff;
}

/* Mobile menu button */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.menu-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #fff;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  background-color: var(--color-primary-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav__list {
  list-style: none;
  padding: var(--spacing-sm) 0;
  margin: 0;
}

.mobile-nav__link {
  display: block;
  padding: var(--spacing-md) var(--spacing-xl);
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: var(--font-size-base);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-nav__link:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #fff;
}

/* ===================================================
   BREADCRUMBS
   =================================================== */

.breadcrumb {
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
}

.breadcrumb__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.breadcrumb__item:not(:last-child)::after {
  content: '›';
  color: var(--color-text-light);
}

.breadcrumb__link {
  color: var(--color-link);
  text-decoration: none;
}

.breadcrumb__link:hover {
  text-decoration: underline;
}

.breadcrumb__current {
  color: var(--color-text-muted);
}

/* ===================================================
   HERO SECTION
   =================================================== */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  text-align: center;
}

.hero__eyebrow {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 100px;
  margin-bottom: var(--spacing-lg);
  letter-spacing: 0.05em;
}

.hero__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--spacing-lg);
  line-height: 1.3;
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--font-size-4xl);
  }
}

.hero__subtitle {
  font-size: var(--font-size-md);
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin: 0 auto var(--spacing-2xl);
  line-height: var(--line-height-base);
}

@media (min-width: 768px) {
  .hero__subtitle {
    font-size: var(--font-size-lg);
  }
}

.hero__cta {
  display: inline-block;
  background-color: #fff;
  color: var(--color-primary);
  font-size: var(--font-size-base);
  font-weight: 700;
  padding: var(--spacing-md) var(--spacing-2xl);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  color: var(--color-primary-dark);
}

/* ===================================================
   SECTIONS
   =================================================== */

.section {
  padding: var(--spacing-3xl) 0;
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--dark {
  background-color: var(--color-primary);
  color: #fff;
}

.section__header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section__eyebrow {
  display: inline-block;
  color: var(--color-link);
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-sm);
}

.section--dark .section__eyebrow {
  color: var(--color-accent-mid);
}

.section__title {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
  .section__title {
    font-size: var(--font-size-2xl);
  }
}

.section--dark .section__title {
  color: #fff;
}

.section__lead {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--line-height-base);
}

.section--dark .section__lead {
  color: rgba(255, 255, 255, 0.75);
}

/* ===================================================
   ARTICLE CARDS GRID
   =================================================== */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 540px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Card */
.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__image-wrap {
  aspect-ratio: 16/9;
  overflow: hidden;
  background-color: var(--color-accent);
  position: relative;
}

.card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.card:hover .card__image-wrap img {
  transform: scale(1.04);
}

.card__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-mid) 100%);
  color: var(--color-primary);
  font-size: 2.5rem;
}

.card__body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card__category {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 2px var(--spacing-sm);
  border-radius: 100px;
  margin-bottom: var(--spacing-sm);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.card__category:hover {
  background-color: var(--color-accent-mid);
  color: var(--color-primary-dark);
}

.card__title {
  font-size: var(--font-size-md);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.5;
  flex: 1;
}

.card__title a {
  color: inherit;
  text-decoration: none;
}

.card__title a:hover {
  color: var(--color-link);
  text-decoration: underline;
}

.card__excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.card__date {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

.card__read-more {
  font-size: var(--font-size-sm);
  color: var(--color-link);
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}

.card__read-more:hover {
  gap: 8px;
  color: var(--color-link-hover);
}

/* Featured card (full-width) */
.card--featured {
  grid-column: 1 / -1;
  flex-direction: row;
}

@media (max-width: 539px) {
  .card--featured {
    flex-direction: column;
  }
}

.card--featured .card__image-wrap {
  flex: 0 0 45%;
  aspect-ratio: auto;
  min-height: 220px;
}

.card--featured .card__title {
  font-size: var(--font-size-xl);
}

/* ===================================================
   CATEGORY GRID
   =================================================== */

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .category-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.category-card {
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  transition: border-color var(--transition-base), background-color var(--transition-base),
    transform var(--transition-base);
}

.category-card:hover {
  border-color: var(--color-primary);
  background-color: var(--color-accent);
  transform: translateY(-3px);
}

.category-card__icon {
  font-size: 2.25rem;
  line-height: 1;
}

.category-card__name {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-primary);
  line-height: var(--line-height-tight);
}

.category-card__count {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ===================================================
   ARTICLE PAGE LAYOUT
   =================================================== */

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  padding: var(--spacing-2xl) 0;
}

@media (min-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr 300px;
    align-items: start;
  }
}

/* Article */
.article__header {
  margin-bottom: var(--spacing-xl);
}

.article__category {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 3px var(--spacing-sm);
  border-radius: 100px;
  margin-bottom: var(--spacing-md);
  text-decoration: none;
}

.article__title {
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.35;
}

@media (min-width: 768px) {
  .article__title {
    font-size: var(--font-size-3xl);
  }
}

.article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  padding: var(--spacing-md) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.article__meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.article__cover {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
}

/* Article body content */
.article__body {
  font-size: var(--font-size-md);
  line-height: var(--line-height-loose);
  color: var(--color-text);
}

.article__body h2 {
  font-size: var(--font-size-xl);
  margin-top: var(--spacing-3xl);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 3px solid var(--color-primary);
  color: var(--color-primary);
}

.article__body h3 {
  font-size: var(--font-size-lg);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
  padding-left: var(--spacing-md);
  border-left: 4px solid var(--color-accent-mid);
}

.article__body h4 {
  font-size: var(--font-size-md);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.article__body p {
  margin-bottom: var(--spacing-lg);
}

.article__body ul,
.article__body ol {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.article__body li {
  margin-bottom: var(--spacing-sm);
}

.article__body blockquote {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg) var(--spacing-xl);
  background-color: var(--color-accent);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text-muted);
}

.article__body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-sm);
  overflow-x: auto;
  display: block;
}

.article__body th {
  background-color: var(--color-primary);
  color: #fff;
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  font-weight: 700;
}

.article__body td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

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

/* Table of contents */
.toc {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.toc__title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--spacing-md);
}

.toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: toc;
}

.toc__list li {
  counter-increment: toc;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  display: flex;
  gap: var(--spacing-sm);
}

.toc__list li::before {
  content: counter(toc) ".";
  color: var(--color-primary);
  font-weight: 700;
  min-width: 20px;
}

.toc__list a {
  color: var(--color-link);
  text-decoration: none;
}

.toc__list a:hover {
  text-decoration: underline;
}

/* ===================================================
   SIDEBAR
   =================================================== */

.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.sidebar__widget {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.sidebar__widget-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-border);
}

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

.sidebar__list li {
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
  margin: 0;
  font-size: var(--font-size-sm);
}

.sidebar__list li:last-child {
  border-bottom: none;
}

.sidebar__list a {
  color: var(--color-link);
  text-decoration: none;
  display: block;
  line-height: 1.5;
}

.sidebar__list a:hover {
  text-decoration: underline;
}

/* ===================================================
   AD SLOTS — AdSense ready
   =================================================== */

.ad-slot {
  width: 100%;
  min-height: 90px;
  background-color: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: var(--font-size-xs);
  text-align: center;
  margin: var(--spacing-xl) 0;
}

.ad-slot--leaderboard {
  min-height: 90px;
}

.ad-slot--rectangle {
  min-height: 250px;
}

.ad-slot--sidebar {
  min-height: 600px;
}

/* Hide placeholder text in production */
.ad-slot--active {
  background-color: transparent;
  border: none;
  display: block;
}

.ad-slot--active .ad-slot__placeholder {
  display: none;
}

/* ===================================================
   ABOUT SECTION (homepage)
   =================================================== */

.about-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

@media (min-width: 768px) {
  .about-block {
    grid-template-columns: 1fr 1fr;
  }
}

.about-block__text h2 {
  margin-bottom: var(--spacing-md);
}

.about-block__text p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.about-block__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.stat-item {
  background-color: var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
}

.stat-item__number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
  display: block;
}

.stat-item__label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* ===================================================
   PAGE HEADER (inner pages)
   =================================================== */

.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
}

.page-header__title {
  font-size: var(--font-size-2xl);
  color: #fff;
  margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
  .page-header__title {
    font-size: var(--font-size-3xl);
  }
}

.page-header__lead {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-md);
  max-width: 600px;
}

/* ===================================================
   CONTACT FORM
   =================================================== */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
}

.form-group label .required {
  color: #c53030;
  margin-left: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  font-family: var(--font-base);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  -webkit-appearance: none;
}

.form-group textarea {
  resize: vertical;
  min-height: 160px;
  line-height: var(--line-height-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-light);
}

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-2xl);
  font-family: var(--font-base);
  font-size: var(--font-size-base);
  font-weight: 700;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* ===================================================
   PRIVACY / LEGAL PAGE
   =================================================== */

.legal-content {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: var(--spacing-3xl) 0;
}

.legal-content h2 {
  font-size: var(--font-size-lg);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.legal-content h2:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.legal-content p,
.legal-content li {
  color: var(--color-text-muted);
  font-size: var(--font-size-base);
}

.legal-content .last-updated {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-2xl);
}

/* ===================================================
   FOOTER
   =================================================== */

.site-footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand__logo {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-md);
}

.footer-brand__desc {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-base);
  color: rgba(255, 255, 255, 0.6);
}

.footer-col__title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--spacing-md);
}

.footer-col__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-col__list a {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-col__list a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.footer-bottom__copy {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom__links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-bottom__links a {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
}

.footer-bottom__links a:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* ===================================================
   UTILITY CLASSES
   =================================================== */

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-2xl) 0;
}

/* Tag list */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  list-style: none;
  padding: 0;
  margin: var(--spacing-lg) 0;
}

.tag {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: 500;
  padding: 4px var(--spacing-md);
  border-radius: 100px;
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.tag:hover {
  background-color: var(--color-accent-mid);
  color: var(--color-primary-dark);
}

/* Alert / notice box */
.notice {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.notice--info {
  background-color: var(--color-accent);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.notice--success {
  background-color: #f0fff4;
  border-color: #48bb78;
  color: var(--color-success);
}

/* ===================================================
   PRINT STYLES
   =================================================== */

@media print {
  .site-header,
  .site-footer,
  .menu-toggle,
  .mobile-nav,
  .sidebar,
  .ad-slot,
  .breadcrumb {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  h1, h2, h3, h4 {
    color: #000;
    page-break-after: avoid;
  }

  .article__body p,
  .article__body li {
    orphans: 3;
    widows: 3;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }
}