/* ============================================================
   WhyExplain — Shared Stylesheet
   Design system: DM Serif Display / Poppins, accent #8DB600
   ============================================================ */

/* --- Design tokens (light mode defaults) --- */
:root {
  --c-accent:       #8DB600;
  --c-accent-dark:  #6E8E00;
  --c-accent-soft:  rgba(141, 182, 0, 0.12);

  --c-navy:         #1A3A6B;
  --c-navy-dark:    #112850;
  --c-purple:       #2A0A4A;

  --c-bg:           #F9F9F6;
  --c-bg-raised:    #FFFFFF;
  --c-bg-subtle:    #F2F2EE;
  --c-bg-hero:      #1A3A6B;

  --c-text:         #1C1C1A;
  --c-text-muted:   #5A5A54;
  --c-text-light:   #8A8A82;
  --c-text-on-dark: #F0F0EA;

  --c-border:       #E0E0D8;
  --c-border-strong:#C8C8BF;

  --c-tag-bg:       #EEF0E8;
  --c-tag-text:     #3A4A10;
  --c-tag-accent-bg:#E8F0C0;
  --c-tag-accent-text: #4A5E00;

  --c-badge-bg:     #EEF2F8;
  --c-badge-text:   #1A3A6B;

  --c-stat-bg:      rgba(255,255,255,0.12);

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  14px;
  --radius-xl:  20px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.05);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);

  --font-display: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --font-body:    'Poppins', system-ui, -apple-system, sans-serif;

  --type-scale-xs:   0.75rem;
  --type-scale-sm:   0.875rem;
  --type-scale-base: 1rem;
  --type-scale-md:   1.125rem;
  --type-scale-lg:   1.25rem;
  --type-scale-xl:   1.5rem;
  --type-scale-2xl:  1.875rem;
  --type-scale-3xl:  2.5rem;
  --type-scale-4xl:  3.25rem;

  --nav-height: 64px;
  --content-max: 1140px;
  --prose-max: 720px;
}

/* --- Dark mode (EXPLICIT ONLY — does NOT auto-activate from OS dark mode)
   Users toggle dark mode via the theme button; OS preference is ignored.
   This keeps the site light on phones with dark mode enabled. --- */

:root[data-theme="dark"] {
  --c-bg:           #111110;
  --c-bg-raised:    #1C1C1A;
  --c-bg-subtle:    #222220;
  --c-bg-hero:      #0D2244;

  --c-text:         #EEEEE8;
  --c-text-muted:   #A0A099;
  --c-text-light:   #707068;
  --c-text-on-dark: #EEEEE8;

  --c-border:       #2C2C28;
  --c-border-strong:#3C3C38;

  --c-tag-bg:       #1E2210;
  --c-tag-text:     #B0CC40;
  --c-tag-accent-bg:#1E2A00;
  --c-tag-accent-text: #A8C820;

  --c-badge-bg:     #0E1E3A;
  --c-badge-text:   #7AA4D8;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.30), 0 1px 2px rgba(0,0,0,0.20);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.35), 0 1px 3px rgba(0,0,0,0.20);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.40), 0 2px 6px rgba(0,0,0,0.25);
}

/* --- Global reset & base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  color-scheme: light dark;
}

body {
  margin: 0;
  padding-inline: 0;
  font-family: var(--font-body);
  font-size: var(--type-scale-base);
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--c-navy);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: color 0.15s, text-decoration-color 0.15s;
}

a:hover {
  color: var(--c-accent-dark);
  text-decoration-color: currentColor;
}

a:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  text-wrap: balance;
  color: var(--c-text);
  margin-block: 0;
}

p {
  margin-block: 0;
}

ul, ol {
  margin-block: 0;
  padding-inline-start: 1.5rem;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding-inline-start: 0;
}

strong {
  font-weight: 600;
}

table {
  border-collapse: collapse;
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Utilities --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.container {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 1rem;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--c-accent);
  color: #000;
  padding: 0.5rem 1rem;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-size: var(--type-scale-sm);
  font-weight: 600;
  text-decoration: none;
  z-index: 10000;
  transition: top 0.15s;
}

.skip-link:focus {
  top: 0;
}

/* --- Navigation --- */
.site-nav {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 100;
  background: var(--c-bg-raised);
  border-bottom: 1px solid var(--c-border);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

.nav-inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: 100%;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--c-navy);
  text-decoration: none;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.nav-logo span {
  color: var(--c-accent-dark);
}

.nav-logo:hover {
  color: var(--c-navy-dark);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: block;
  padding: 0.35rem 0.6rem;
  font-size: var(--type-scale-sm);
  font-weight: 500;
  color: var(--c-text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--c-text);
  background: var(--c-bg-subtle);
}

.nav-links a[aria-current="page"] {
  color: var(--c-accent-dark);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.4rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--c-bg-raised);
    border-bottom: 1px solid var(--c-border);
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1rem 1rem;
    gap: 0.25rem;
    box-shadow: var(--shadow-md);
  }
  .nav-links.is-open {
    display: flex;
  }
  .nav-links a {
    font-size: 1rem;
    padding: 0.5rem 0.75rem;
  }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--type-scale-sm);
  font-weight: 600;
  line-height: 1.2;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

.btn--accent {
  background: var(--c-accent);
  color: #1A2000;
  border-color: var(--c-accent);
}

.btn--accent:hover {
  background: var(--c-accent-dark);
  border-color: var(--c-accent-dark);
  color: #111000;
}

.btn--outline {
  background: transparent;
  color: var(--c-navy);
  border-color: var(--c-border-strong);
}

.btn--outline:hover {
  border-color: var(--c-navy);
  background: var(--c-bg-subtle);
}

.btn--lg {
  padding: 0.75rem 1.75rem;
  font-size: var(--type-scale-base);
}

.btn--sm {
  padding: 0.4rem 0.875rem;
  font-size: var(--type-scale-xs);
}

/* --- Category hero (technology/index.html) --- */
.category-hero {
  padding-block: 5rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.tech-hero {
  background: linear-gradient(135deg, var(--c-purple) 0%, var(--c-navy) 100%);
}

/* Finance — deep navy to teal */
.finance-hero {
  background: linear-gradient(135deg, #0D2B52 0%, #1A4A7A 60%, #0E5C6E 100%);
}

/* Marketing — deep burgundy to warm navy */
.marketing-hero {
  background: linear-gradient(135deg, #3D1A00 0%, #6E2C00 60%, #1A3A6B 100%);
}

/* Business — deep forest to navy */
.business-hero {
  background: linear-gradient(135deg, #0D3320 0%, #1A5C38 60%, #1A3A6B 100%);
}

.category-hero .hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 1rem;
}

.hero-eyebrow {
  display: inline-block;
  font-size: var(--type-scale-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 1rem;
  border: 1px solid rgba(141,182,0,0.35);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
}

.category-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--type-scale-2xl), 4vw, var(--type-scale-4xl));
  color: var(--c-text-on-dark);
  margin-bottom: 1.25rem;
  max-width: 820px;
  margin-inline: auto;
}

.hero-subtitle {
  font-size: clamp(var(--type-scale-base), 2vw, var(--type-scale-md));
  color: rgba(240,240,234,0.8);
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-stat {
  background: var(--c-stat-bg);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  min-width: 110px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--type-scale-xl);
  color: var(--c-accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: var(--type-scale-xs);
  color: rgba(240,240,234,0.7);
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* --- About hero (about.html) --- */
.about-hero {
  padding-block: 5rem 4rem;
  text-align: center;
  background: linear-gradient(135deg, var(--c-navy) 0%, var(--c-accent-dark) 100%);
}

.about-hero .hero-inner {
  position: relative;
  z-index: 1;
}

.about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--type-scale-2xl), 4vw, var(--type-scale-4xl));
  color: var(--c-text-on-dark);
  margin-bottom: 1.25rem;
  max-width: 780px;
  margin-inline: auto;
}

.about-hero .hero-eyebrow {
  border-color: rgba(255,255,255,0.3);
  color: rgba(255,255,255,0.85);
}

.about-hero .hero-subtitle {
  color: rgba(240,240,234,0.85);
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

/* --- Filter chips --- */
.filter-bar {
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-bg-raised);
  position: sticky;
  top: var(--nav-height);
  z-index: 50;
}

.filter-chips {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.875rem;
  font-family: var(--font-body);
  font-size: var(--type-scale-sm);
  font-weight: 500;
  color: var(--c-text-muted);
  background: var(--c-bg-subtle);
  border: 1px solid var(--c-border);
  border-radius: 100px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}

.chip:hover {
  color: var(--c-text);
  border-color: var(--c-border-strong);
  background: var(--c-bg);
}

.chip--active,
.chip[aria-pressed="true"] {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #1A2000;
}

.chip:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

/* --- Category layout (hub pages) --- */
.category-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2.5rem;
  align-items: start;
  padding-block: 2.5rem 4rem;
}

@media (max-width: 900px) {
  .category-layout {
    grid-template-columns: 1fr;
  }
  .category-sidebar {
    display: none;
  }
}

.articles-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* --- Article cards --- */
.article-card {
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: box-shadow 0.15s, border-color 0.15s;
}

.article-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--c-border-strong);
}

.card-meta {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  font-size: var(--type-scale-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
  background: var(--c-tag-bg);
  color: var(--c-tag-text);
  border-radius: 100px;
  text-decoration: none;
}

.card-tag--accent {
  background: var(--c-tag-accent-bg);
  color: var(--c-tag-accent-text);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--type-scale-xl);
  font-weight: 400;
  line-height: 1.25;
  margin-bottom: 0.6rem;
}

.card-title a {
  color: var(--c-text);
  text-decoration: none;
}

.card-title a:hover {
  color: var(--c-navy);
}

.card-excerpt {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--c-border);
}

.card-author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--c-navy);
  color: var(--c-accent);
  font-size: 0.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.author-name {
  font-size: var(--type-scale-sm);
  font-weight: 500;
  color: var(--c-text-muted);
}

.card-read-time {
  font-size: var(--type-scale-xs);
  color: var(--c-text-light);
  font-weight: 500;
  white-space: nowrap;
}

/* --- Sidebar widgets --- */
.sidebar-widget {
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.sidebar-newsletter {
  background: var(--c-navy);
  border-color: var(--c-navy);
}

.sidebar-newsletter .widget-title {
  color: var(--c-text-on-dark);
}

.sidebar-newsletter .widget-text {
  color: rgba(240,240,234,0.75);
}

.widget-title {
  font-family: var(--font-display);
  font-size: var(--type-scale-lg);
  font-weight: 400;
  color: var(--c-text);
  margin-bottom: 0.875rem;
}

.widget-text {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  margin-bottom: 0.875rem;
  line-height: 1.55;
}

.tool-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.tool-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tool-icon {
  width: 36px;
  height: 36px;
  background: var(--c-bg-subtle);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--c-text-muted);
}

.tool-info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.tool-name {
  font-size: var(--type-scale-sm);
  font-weight: 600;
  color: var(--c-text);
}

.tool-desc {
  font-size: var(--type-scale-xs);
  color: var(--c-text-muted);
}

/* --- Newsletter forms --- */
.newsletter-form-sm {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.newsletter-form-sm input[type="email"] {
  width: 100%;
  padding: 0.6rem 0.875rem;
  font-family: var(--font-body);
  font-size: var(--type-scale-sm);
  color: var(--c-text);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s;
}

.newsletter-form-sm input[type="email"]:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-soft);
}

.newsletter-form-sm input[type="email"]::placeholder {
  color: var(--c-text-light);
}

.newsletter-fine {
  font-size: var(--type-scale-xs);
  color: rgba(240,240,234,0.5);
}

/* --- Article hero --- */
.article-hero {
  background: var(--c-bg-subtle);
  border-bottom: 1px solid var(--c-border);
  padding-block: 2.5rem 2rem;
}

.article-h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--type-scale-2xl), 4vw, var(--type-scale-4xl));
  line-height: 1.15;
  margin-block: 1rem 1.5rem;
  max-width: 820px;
}

/* --- Breadcrumb --- */
.breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
}

.breadcrumb a {
  color: var(--c-text-muted);
  text-decoration: none;
  font-weight: 500;
}

.breadcrumb a:hover {
  color: var(--c-accent-dark);
}

.breadcrumb [aria-current="page"] {
  color: var(--c-text-light);
}

/* --- Author bar --- */
.author-bar {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  padding: 1.25rem;
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  max-width: 820px;
}

.author-bar-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--c-navy);
  color: var(--c-accent);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.04em;
}

.author-bar-name {
  font-weight: 600;
  font-size: var(--type-scale-md);
  color: var(--c-text);
  margin-bottom: 0.2rem;
}

.author-bar-bio {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  line-height: 1.55;
  margin-bottom: 0.4rem;
}

.author-bar-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: var(--type-scale-xs);
  color: var(--c-text-light);
  font-weight: 500;
}

/* --- Trust bar --- */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  padding-top: 0.75rem;
  border-top: 1px solid var(--c-border);
  max-width: 820px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--type-scale-xs);
  font-weight: 500;
  color: var(--c-text-muted);
}

.trust-item svg {
  color: var(--c-accent-dark);
  flex-shrink: 0;
}

/* --- Article body --- */
.article-body {
  max-width: var(--prose-max);
}

.article-body > * + * {
  margin-top: 1.5rem;
}

.article-body p {
  font-size: var(--type-scale-base);
  line-height: 1.8;
  color: var(--c-text);
}

.article-h2 {
  font-family: var(--font-display);
  font-size: var(--type-scale-2xl);
  color: var(--c-text);
  padding-top: 1rem;
  border-top: 2px solid var(--c-accent);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.article-h3 {
  font-family: var(--font-display);
  font-size: var(--type-scale-xl);
  color: var(--c-text);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

/* --- Key takeaways box --- */
.key-takeaways {
  background: var(--c-bg-subtle);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-accent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.takeaways-title {
  font-family: var(--font-display);
  font-size: var(--type-scale-lg);
  color: var(--c-text);
  margin-bottom: 0.875rem;
  font-weight: 400;
}

.takeaways-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding-left: 1.25rem;
  margin: 0;
}

.takeaways-list li {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  line-height: 1.6;
}

/* --- Stat box --- */
.stat-box {
  background: var(--c-navy);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-block: 2rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-big {
  font-family: var(--font-display);
  font-size: var(--type-scale-3xl);
  color: var(--c-accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-desc {
  font-size: var(--type-scale-xs);
  color: rgba(240,240,234,0.7);
  line-height: 1.4;
}

/* --- Mid-article CTA --- */
.mid-article-cta {
  background: linear-gradient(135deg, var(--c-navy) 0%, var(--c-purple) 100%);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-block: 2.5rem;
}

.cta-eyebrow {
  font-size: var(--type-scale-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 0.5rem;
}

.cta-title {
  font-family: var(--font-display);
  font-size: var(--type-scale-xl);
  color: var(--c-text-on-dark);
  margin-bottom: 0.5rem;
  font-weight: 400;
}

.mid-article-cta p {
  color: rgba(240,240,234,0.75) !important;
  font-size: var(--type-scale-sm) !important;
  margin-bottom: 1rem;
}

/* --- Affiliate box --- */
.affiliate-box {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-block: 2rem;
  background: var(--c-bg-raised);
}

.affiliate-label {
  font-size: var(--type-scale-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-light);
  margin-bottom: 1rem;
}

.affiliate-disclosure {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  font-size: var(--type-scale-xs);
  color: var(--c-text-light);
}

.affiliate-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.affiliate-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

.affiliate-name {
  font-weight: 600;
  font-size: var(--type-scale-sm);
  color: var(--c-text);
  margin-bottom: 0.2rem;
}

.affiliate-desc {
  font-size: var(--type-scale-xs);
  color: var(--c-text-muted);
  line-height: 1.5;
  flex: 1;
  min-width: 200px;
}

/* --- Sidebar TOC --- */
.sidebar-toc {
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.sticky-toc {
  position: sticky;
  top: calc(var(--nav-height) + 1rem);
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-left: 1.25rem;
  margin: 0;
}

.toc-list li {
  font-size: var(--type-scale-sm);
}

.toc-list a {
  color: var(--c-text-muted);
  text-decoration: none;
  font-weight: 400;
  line-height: 1.45;
  display: block;
  transition: color 0.15s;
}

.toc-list a:hover {
  color: var(--c-accent-dark);
}

.related-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-list a {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  text-decoration: none;
  display: block;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--c-border);
  font-weight: 500;
}

.related-list li:last-child a { border-bottom: none; }

.related-list a:hover {
  color: var(--c-accent-dark);
}

/* --- About page sections --- */
.mission-section {
  padding-block: 4rem;
  background: var(--c-bg);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(var(--type-scale-xl), 3vw, var(--type-scale-3xl));
  color: var(--c-text);
  margin-bottom: 0.5rem;
  font-weight: 400;
}

.section-title--centred {
  text-align: center;
}

.section-subtitle {
  font-size: var(--type-scale-base);
  color: var(--c-text-muted);
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 768px) {
  .mission-grid { grid-template-columns: 1fr; }
}

.mission-text {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mission-text h2 {
  margin-bottom: 0.5rem;
}

.mission-text p {
  font-size: var(--type-scale-base);
  line-height: 1.8;
  color: var(--c-text-muted);
}

.pull-quote {
  background: var(--c-navy);
  border-radius: var(--radius-xl);
  padding: 2rem;
  margin: 0;
}

.pull-quote-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 2px solid var(--c-accent);
  color: var(--c-accent);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}

.pull-quote blockquote {
  margin: 0 0 1.25rem;
}

.pull-quote blockquote p {
  font-family: var(--font-display);
  font-size: var(--type-scale-lg);
  color: var(--c-text-on-dark);
  line-height: 1.5;
  font-style: italic;
  margin: 0;
}

.pull-quote figcaption {
  font-size: var(--type-scale-sm);
  color: rgba(240,240,234,0.65);
  line-height: 1.5;
}

.pull-quote figcaption strong {
  display: block;
  color: var(--c-accent);
  font-weight: 600;
  margin-bottom: 0.15rem;
}

/* --- Values grid --- */
.values-section {
  padding-block: 4rem;
  background: var(--c-bg-subtle);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .values-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 540px) {
  .values-grid { grid-template-columns: 1fr; }
}

.value-card {
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: box-shadow 0.15s;
}

.value-card:hover {
  box-shadow: var(--shadow-sm);
}

.value-icon {
  width: 48px;
  height: 48px;
  background: var(--c-accent-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--c-accent-dark);
}

.value-title {
  font-family: var(--font-display);
  font-size: var(--type-scale-lg);
  font-weight: 400;
  color: var(--c-text);
  margin-bottom: 0.5rem;
}

.value-text {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  line-height: 1.65;
  margin: 0;
}

/* --- Team section --- */
.team-section {
  padding-block: 4rem;
  background: var(--c-bg);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 1000px) {
  .team-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 540px) {
  .team-grid { grid-template-columns: 1fr; }
}

.team-card {
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
}

.team-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--c-navy);
  color: var(--c-accent);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.team-name {
  font-family: var(--font-display);
  font-size: var(--type-scale-lg);
  font-weight: 400;
  color: var(--c-text);
  margin-bottom: 0.2rem;
}

.team-role {
  font-size: var(--type-scale-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-accent-dark);
  margin: 0 0 0.75rem;
}

.team-bio {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  line-height: 1.55;
  margin: 0 0 1rem;
}

.team-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
}

.badge {
  display: inline-flex;
  padding: 0.2rem 0.6rem;
  font-size: var(--type-scale-xs);
  font-weight: 600;
  background: var(--c-badge-bg);
  color: var(--c-badge-text);
  border-radius: 100px;
}

/* --- Editorial process --- */
.process-section {
  padding-block: 4rem;
  background: var(--c-bg-subtle);
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 800px;
  margin-inline: auto;
}

.process-step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-navy);
  color: var(--c-accent);
  font-family: var(--font-display);
  font-size: var(--type-scale-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.step-content {
  flex: 1;
  padding-top: 0.25rem;
}

.step-title {
  font-family: var(--font-display);
  font-size: var(--type-scale-lg);
  font-weight: 400;
  color: var(--c-text);
  margin-bottom: 0.4rem;
}

.step-text {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  line-height: 1.65;
  margin: 0;
}

/* --- About newsletter CTA --- */
.about-newsletter {
  padding-block: 3.5rem;
  background: var(--c-bg);
}

.newsletter-block {
  max-width: 520px;
  margin-inline: auto;
  text-align: center;
}

.newsletter-block h2 {
  font-family: var(--font-display);
  font-size: var(--type-scale-2xl);
  margin-bottom: 0.5rem;
}

.newsletter-block p {
  color: var(--c-text-muted);
  margin-bottom: 1.25rem;
  font-size: var(--type-scale-sm);
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.newsletter-form input[type="email"] {
  flex: 1;
  min-width: 220px;
  padding: 0.7rem 1rem;
  font-family: var(--font-body);
  font-size: var(--type-scale-sm);
  color: var(--c-text);
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s;
}

.newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-soft);
}

.newsletter-form input[type="email"]::placeholder {
  color: var(--c-text-light);
}

/* --- Legal pages --- */
.legal-hero {
  background: var(--c-bg-subtle);
  border-bottom: 1px solid var(--c-border);
  padding-block: 2.5rem 2rem;
}

.legal-title {
  font-family: var(--font-display);
  font-size: clamp(var(--type-scale-2xl), 4vw, var(--type-scale-3xl));
  color: var(--c-text);
  margin-bottom: 0.5rem;
}

.legal-updated {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  margin: 0;
}

.legal-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 3rem;
  align-items: start;
  padding-block: 3rem 4rem;
}

@media (max-width: 800px) {
  .legal-layout {
    grid-template-columns: 1fr;
  }
  .legal-sidebar {
    display: none;
  }
}

.legal-content {
  max-width: 760px;
}

.legal-content section {
  margin-bottom: 2.5rem;
}

.legal-content section:last-child {
  margin-bottom: 0;
}

.legal-content h2 {
  font-family: var(--font-display);
  font-size: var(--type-scale-xl);
  font-weight: 400;
  color: var(--c-text);
  margin-bottom: 1rem;
  padding-top: 0.25rem;
}

.legal-content p {
  font-size: var(--type-scale-sm);
  color: var(--c-text-muted);
  line-height: 1.85;
  margin-bottom: 0.875rem;
}

.legal-content p:last-child {
  margin-bottom: 0;
}

.legal-content a {
  color: var(--c-navy);
  font-weight: 500;
}

.sidebar-legal-note {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--c-border);
}

.sidebar-legal-note p {
  font-size: var(--type-scale-xs);
  color: var(--c-text-muted);
  margin: 0 0 0.35rem;
}

/* --- Cookie table --- */
.cookie-table-wrapper {
  overflow-x: auto;
  margin-block: 1.25rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
}

.cookie-table {
  width: 100%;
  min-width: 480px;
  font-size: var(--type-scale-xs);
  border-collapse: collapse;
}

.cookie-table th,
.cookie-table td {
  padding: 0.625rem 0.875rem;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
}

.cookie-table th {
  font-size: var(--type-scale-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  background: var(--c-bg-subtle);
}

.cookie-table tr:last-child td {
  border-bottom: none;
}

.cookie-table td {
  color: var(--c-text-muted);
  vertical-align: top;
}

.cookie-table code {
  font-family: ui-monospace, 'Cascadia Code', monospace;
  font-size: 0.85em;
  background: var(--c-bg-subtle);
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
  color: var(--c-text);
}

/* --- Footer --- */
.site-footer {
  background: var(--c-text);
  padding-top: 3rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .site-footer {
    background: #0C0C0A;
  }
}

:root[data-theme="dark"] .site-footer {
  background: #0C0C0A;
}

.footer-inner {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  align-items: flex-start;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
  flex: 1;
  min-width: 200px;
}

.footer-brand .nav-logo {
  color: #EEE;
  margin-bottom: 0.75rem;
  display: inline-block;
}

.footer-tagline {
  font-size: var(--type-scale-sm);
  color: rgba(238,238,238,0.5);
  max-width: 260px;
  line-height: 1.55;
  margin: 0;
}

.footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-col h4.footer-col-title {
  font-family: var(--font-body);
  font-size: var(--type-scale-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(238,238,238,0.4);
  margin-bottom: 0.75rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-col a {
  font-size: var(--type-scale-sm);
  color: rgba(238,238,238,0.65);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-col a:hover {
  color: var(--c-accent);
  text-decoration: none;
}

.footer-bottom {
  padding-block: 1.25rem;
}

.footer-bottom p {
  font-size: var(--type-scale-xs);
  color: rgba(238,238,238,0.3);
  margin: 0;
}

/* ============================================================
   COMPATIBILITY BRIDGE — aliases for homepage class names
   ============================================================ */

/* Token aliases */
:root {
  --c-surface:   var(--c-bg-subtle);
  --c-surface-2: var(--c-bg-subtle);
  --c-link:      var(--c-navy);
  --c-teal:      var(--c-accent);
  --radius-lg:   var(--radius-lg, 14px);
}

/* Button name aliases (homepage uses .btn-primary, others use .btn--accent) */
.btn-primary  { background: var(--c-accent); color: #1A2000; border: 2px solid var(--c-accent); }
.btn-primary:hover { background: var(--c-accent-dark); border-color: var(--c-accent-dark); color: #111000; }
.btn-outline  { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.55); }
.btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-outline-dark { background: transparent; color: var(--c-text); border: 2px solid var(--c-border-strong); }
.btn-outline-dark:hover { background: var(--c-bg-subtle); }

/* Homepage hero section */
.hero {
  background: linear-gradient(135deg, #1A3A6B 0%, #0A0A2A 55%, #3A5A00 85%, #8DB600 100%);
  color: #fff;
  padding-block: clamp(3rem, 8vw, 6rem);
  padding-inline: 1rem;
  text-align: center;
  overflow: hidden;
}
.hero h1 { color: #fff; font-size: clamp(1.9rem, 5vw, 3.25rem); margin-bottom: 1rem; }
.lead {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  opacity: .88;
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: 2rem;
  line-height: 1.65;
}
.hero-ctas { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }

/* Section padding + header */
.section { padding-block: 3rem; }
.section-lg { padding-block: 4.5rem; }
.section-header { text-align: center; margin-bottom: 2.5rem; }
.section-header h2 { margin-bottom: .5rem; }
.section-header p { color: var(--c-text-muted); max-width: 560px; margin-inline: auto; }

/* Eyebrow label */
.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: .4rem;
}

/* Cards grid (homepage featured articles) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 1.25rem;
}
.card {
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card-body { padding: 1.25rem; }
.card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.3;
  margin-bottom: .5rem;
}
.card-title a { color: var(--c-text); text-decoration: none; }
.card-title a:hover { color: var(--c-navy); text-decoration: underline; }
.card-excerpt { font-size: .9rem; color: var(--c-text-muted); line-height: 1.6; margin-bottom: 0; }

/* Category tags */
.tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: .22rem .6rem;
  border-radius: 4px;
  text-decoration: none;
  background: var(--c-bg-subtle);
  color: var(--c-text-muted);
}
.tag-finance    { background: #EBF3FF; color: #1A5CA8; }
.tag-marketing  { background: #FFF3E0; color: #B86000; }
.tag-business   { background: #F0FFF4; color: #1A7A3F; }
.tag-technology { background: #F5F0FF; color: #5A2DA8; }
.tag-guide      { background: #FFF0F5; color: #A8001A; }

/* Footer aliases (homepage uses .footer-grid, .footer-col, .footer-bottom) */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand-col { grid-column: 1 / -1; }
}
@media (max-width: 420px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-logo { font-family: var(--font-display); font-size: 1.35rem; color: #EEE; text-decoration: none; display: inline-block; margin-bottom: .6rem; }
.footer-logo span { color: var(--c-accent); }

/* Standards strip / trust bar utility */
.standards-strip {
  background: var(--c-navy);
  color: #fff;
  padding-block: 2rem;
  padding-inline: 1rem;
}

/* Reading progress bar */
#readingProgress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0;
  background: var(--c-accent);
  z-index: 9999;
  transition: width .1s linear;
}

/* Newsletter CTA inline form (homepage) */
.nl-inline-form {
  display: flex;
  gap: .5rem;
  max-width: 420px;
  margin-inline: auto;
  flex-wrap: wrap;
}
.nl-inline-form input {
  flex: 1;
  min-width: 0;
  padding: .7rem 1rem;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-body);
  background: var(--c-bg-raised);
  color: var(--c-text);
}
.nl-inline-form input:focus { outline: none; border-color: var(--c-accent); }

/* Ensure nothing bleeds outside viewport on any width */
.container, .hero, .section, .standards-strip,
.site-nav, .site-footer, .category-hero {
  max-width: 100%;
  overflow-x: hidden;
}