/* ============================================
   SANDERS CAPITAL — Design System
   Premium Editorial / Finance Knowledge Platform
   ============================================ */


/* --- Tokens --- */
:root {
  --color-bg:         #0a0c10;
  --color-bg-elevated:#0f1218;
  --color-bg-card:    #13161d;
  --color-bg-hover:   #1a1e28;
  --color-surface:    #1a1e28;
  --color-border:     #1e2230;
  --color-border-light:#2a2e3a;

  --color-text:       #c8ccd8;
  --color-text-muted: #6b7084;
  --color-text-dim:   #4a4f62;
  --color-heading:    #e8eaf0;

  --color-accent:     #3d6ea5;
  --color-accent-light:#4d82bd;
  --color-accent-dim: #2a4d75;
  --color-accent-glow: rgba(61, 110, 165, 0.12);

  --color-gold:       #b8935a;
  --color-gold-dim:   rgba(184, 147, 90, 0.15);

  --font-display:     'Cormorant Garamond', Georgia, serif;
  --font-body:        'DM Sans', -apple-system, sans-serif;
  --font-mono:        'JetBrains Mono', monospace;

  --max-width:        1200px;
  --max-width-narrow: 780px;
  --spacing-xs:       0.5rem;
  --spacing-sm:       1rem;
  --spacing-md:       1.5rem;
  --spacing-lg:       2.5rem;
  --spacing-xl:       4rem;
  --spacing-2xl:      6rem;
  --spacing-3xl:      8rem;

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

  --transition:       0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-slow:  0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-heading); }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--color-heading);
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 400; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.7rem); }

p { margin-bottom: 1.2em; }

::selection {
  background: var(--color-accent-dim);
  color: var(--color-heading);
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

/* --- Grain overlay --- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 12, 16, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  height: 72px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-logo img {
  height: 42px;
  width: auto;
}

.site-logo__text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.1;
}

.site-logo__text span {
  display: block;
  font-weight: 400;
  font-size: 0.72em;
  letter-spacing: 0.22em;
  color: var(--color-text-muted);
}

.site-nav { display: flex; align-items: center; gap: 2rem; }

.site-nav a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-heading);
}

.site-nav a:hover::after,
.site-nav a.active::after {
  width: 100%;
}

/* Mobile menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  transition: var(--transition);
}

@media (max-width: 768px) {
  .mobile-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    transform: translateY(-120%);
    transition: transform var(--transition-slow);
  }
  .site-nav.open { transform: translateY(0); }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(61, 110, 165, 0.1), transparent),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(184, 147, 90, 0.04), transparent);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 34, 48, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 34, 48, 0.2) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  text-align: center;
}

.hero__left {
  max-width: 680px;
  margin: 0 auto;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-md);
}

.hero__eyebrow::before,
.hero__eyebrow::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--color-accent);
}

.hero__title {
  font-size: clamp(2.8rem, 5.5vw, 4.2rem);
  font-weight: 300;
  line-height: 1.08;
  margin-bottom: var(--spacing-md);
  color: var(--color-heading);
}

.hero__title em {
  font-style: italic;
  color: var(--color-accent-light);
}

.hero__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--spacing-lg);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.hero__right {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.hero__visual {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.hero__visual img {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
}

.hero__visual::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(61, 110, 165, 0.15);
  pointer-events: none;
}

@media (max-width: 900px) {
  .hero__left { max-width: 100%; }
  .hero__subtitle { max-width: 100%; }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

.btn--primary:hover {
  background: var(--color-accent-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(61, 110, 165, 0.25);
}

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

.btn--ghost:hover {
  color: var(--color-heading);
  border-color: var(--color-text-muted);
}

/* ============================================
   SECTION FOUNDATIONS
   ============================================ */
.section {
  padding: var(--spacing-3xl) 0;
}

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

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

.section__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-sm);
}

.section__label::before,
.section__label::after {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--color-accent-dim);
}

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

.section__desc {
  color: var(--color-text-muted);
  max-width: 540px;
  margin: 0 auto;
  font-size: 0.95rem;
}

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
}

.stats-bar__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  text-align: center;
}

.stat__label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

@media (max-width: 600px) {
  .stats-bar__inner { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-lg); }
}

/* ============================================
   CONTENT CARDS (Blog, Kennisbank)
   ============================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--spacing-md);
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.card__tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
  padding: 4px 10px;
  border-radius: 3px;
  margin-bottom: var(--spacing-sm);
  width: fit-content;
}

.card__tag--gold {
  color: var(--color-gold);
  background: var(--color-gold-dim);
}

.card__title {
  font-size: 1.35rem;
  margin-bottom: var(--spacing-xs);
  transition: color var(--transition);
}

.card:hover .card__title { color: var(--color-accent-light); }

.card__excerpt {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: var(--spacing-md);
}

.card__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}

.card__meta span { display: flex; align-items: center; gap: 4px; }

/* ============================================
   PHILOSOPHY / PILLARS SECTION
   ============================================ */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.pillar {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  transition: all var(--transition);
}

.pillar:hover {
  border-color: var(--color-accent-dim);
  background: var(--color-bg-hover);
}

.pillar__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-bg-hover), var(--color-surface));
}

.pillar__icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-accent-light);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.pillar__title {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
}

.pillar__desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  text-align: center;
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, var(--color-accent-glow), transparent);
  pointer-events: none;
}

.cta-section h2 {
  position: relative;
  margin-bottom: var(--spacing-sm);
}

.cta-section p {
  position: relative;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  background: var(--color-bg);
}

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

.footer__brand p {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  margin-top: var(--spacing-sm);
  max-width: 300px;
}

.footer__heading {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.footer__links {
  list-style: none;
}

.footer__links li { margin-bottom: 10px; }

.footer__links a {
  color: var(--color-text-dim);
  font-size: 0.88rem;
  transition: color var(--transition);
}

.footer__links a:hover { color: var(--color-heading); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.78rem;
  color: var(--color-text-dim);
}

.footer__bottom a { color: var(--color-text-dim); }
.footer__bottom a:hover { color: var(--color-text); }

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); }
  .footer__bottom { flex-direction: column; gap: var(--spacing-xs); text-align: center; }
}

/* ============================================
   ARTICLE / CONTENT PAGES
   ============================================ */
.article-header {
  padding: calc(72px + var(--spacing-3xl)) 0 var(--spacing-2xl);
  border-bottom: 1px solid var(--color-border);
}

.article-header__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.article-header__tag {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
  padding: 3px 10px;
  border-radius: 3px;
}

.article-header h1 {
  font-weight: 400;
  max-width: 720px;
}

.article-header__lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-md);
  max-width: 640px;
  line-height: 1.75;
}

/* Article body */
.article-body {
  padding: var(--spacing-2xl) 0;
}

.article-body h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid var(--color-border);
}

.article-body h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-xs);
}

.article-body p {
  font-size: 1.02rem;
  line-height: 1.82;
  color: var(--color-text);
}

.article-body ul, .article-body ol {
  margin-bottom: 1.2em;
  padding-left: 1.5rem;
}

.article-body li {
  margin-bottom: 0.5em;
  line-height: 1.7;
  color: var(--color-text);
}

.article-body blockquote {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-elevated);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-text-muted);
}

.article-body .callout {
  background: var(--color-accent-glow);
  border: 1px solid var(--color-accent-dim);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.article-body .callout p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* Disclaimer badge */
.disclaimer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-dim);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: 3px;
  margin-top: var(--spacing-sm);
}

/* ============================================
   PAGE HEADERS (Blog list, Kennisbank, etc.)
   ============================================ */
.page-header {
  padding: calc(72px + var(--spacing-3xl)) 0 var(--spacing-2xl);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(61,110,165,0.06), transparent);
  pointer-events: none;
}

.page-header h1 {
  position: relative;
  margin-bottom: var(--spacing-xs);
}

.page-header p {
  position: relative;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ============================================
   KENNISBANK
   ============================================ */
.kb-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.kb-category {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition);
}

.kb-category:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
}

.kb-category__title {
  font-size: 1.15rem;
  margin-bottom: var(--spacing-xs);
}

.kb-category__list {
  list-style: none;
  padding: 0;
}

.kb-category__list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.kb-category__list a {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.kb-category__list a::before {
  content: '→';
  font-size: 0.75rem;
  color: var(--color-accent-dim);
  transition: color var(--transition);
}

.kb-category__list a:hover { color: var(--color-heading); }
.kb-category__list a:hover::before { color: var(--color-accent-light); }

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.contact-info h3 { margin-bottom: var(--spacing-sm); }
.contact-info p { color: var(--color-text-muted); font-size: 0.92rem; }

.contact-detail {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.contact-detail__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

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

.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea { min-height: 140px; resize: vertical; }

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

/* ============================================
   DISCLAIMER PAGE
   ============================================ */
.disclaimer-content {
  padding: var(--spacing-2xl) 0;
}

.disclaimer-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.disclaimer-content p {
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger.visible > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.12s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.19s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.26s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.33s; opacity: 1; transform: none; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.40s; opacity: 1; transform: none; }

/* ============================================
   SCROLL INDICATOR
   ============================================ */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  z-index: 1001;
  transition: width 0.1s linear;
}

/* ============================================
   PREMIUM / MEMBERSHIP
   ============================================ */
.premium-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

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

.tier-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  position: relative;
  transition: all var(--transition);
}

.tier-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
}

.tier-card--premium {
  border-color: var(--color-accent-dim);
  background: linear-gradient(135deg, var(--color-bg-card), rgba(61, 110, 165, 0.06));
}

.tier-card--premium:hover {
  border-color: var(--color-accent);
}

.tier-badge {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 3px;
  margin-bottom: var(--spacing-md);
}

.tier-badge--free {
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.tier-badge--premium {
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
  border: 1px solid var(--color-accent-dim);
}

.tier-card h3 {
  font-size: 1.4rem;
  margin-bottom: var(--spacing-xs);
}

.tier-card__price {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-heading);
  font-weight: 400;
  margin-bottom: var(--spacing-md);
}

.tier-card__price span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-family: var(--font-body);
}

.tier-features {
  list-style: none;
  padding: 0;
  margin-bottom: var(--spacing-lg);
}

.tier-features li {
  padding: 8px 0;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--color-border);
}

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

.tier-features .check {
  color: var(--color-accent-light);
  font-weight: 700;
  flex-shrink: 0;
}

.tier-features .lock {
  color: var(--color-text-dim);
  flex-shrink: 0;
}

/* Stat counter animation */
.stat__value {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--color-heading);
  line-height: 1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

/* ============================================
   SOCIAL LINKS
   ============================================ */
.social-links {
  display: flex;
  gap: 12px;
  margin-top: var(--spacing-md);
}

.social-link {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-dim);
  transition: all var(--transition);
}

.social-link:hover {
  border-color: var(--color-accent-dim);
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
}

.social-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ============================================
   KB CATEGORY ICON (non-emoji)
   ============================================ */
.kb-category__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-bg-hover), var(--color-surface));
  margin-bottom: var(--spacing-sm);
}

.kb-category__icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-accent-light);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}