:root {
  --yb-bg: #12110f;
  --yb-bg-layer1: #333333;
  --yb-bg-layer2: #262626;
  --yb-bg-layer3: #1a1a1a;
  --yb-text-primary: #d9d9d9;
  --yb-text-secondary: #b5b5b5;
  --yb-text-tertiary: #919191;
  --yb-text-highlight: #49c4c9;
  --yb-border: #333333;
  --yb-border-light: #404040;
  --yb-accent: #49c4c9;
  --yb-accent-dark: #35999d;
  --yb-font-body: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --yb-font-mono: "Geist Mono", SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --yb-font-geist: Geist, Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* ============================================
   FAQ SECTION ON INDEX.HTML
   ============================================ */

.yb-faq-section {
  max-width: 100%;
  overflow-x: hidden;
  margin-top: 80px;
  margin-bottom: 80px;
  padding-inline: 0;
  background: var(--yb-bg);
}

.yb-faq-inner {
  max-width: 90rem;
  width: 100%;
  margin-inline: auto;
  padding-inline: 1rem;
  padding-block: 3rem;
}

@media (min-width: 768px) {
  .yb-faq-inner {
    padding-inline: 1.5rem;
  }
}

/* H1 Hero Heading */
.yb-hero-h1 {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--yb-text-primary);
  margin-bottom: 0.5rem;
  text-align: left;
}

.yb-hero-h1 span {
  color: var(--yb-accent);
}

.yb-hero-subtitle {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--yb-text-secondary);
  margin-bottom: 2.5rem;
  text-align: left;
}

.yb-faq-divider {
  width: 100%;
  height: 1px;
  background: var(--yb-border);
  margin-bottom: 2rem;
}

/* Accordion Container */
.yb-accordion {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--yb-border);
}

/* Accordion Item */
.yb-accordion-item {
  border-bottom: 1px solid var(--yb-border);
  overflow: hidden;
}

/* Accordion Question (H2) */
.yb-accordion-question {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1.4;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--yb-text-primary);
  margin: 0;
  padding: 0;
}

.yb-accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.125rem 0;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  gap: 1rem;
  transition: color 0.2s ease;
}

.yb-accordion-trigger:hover .yb-accordion-question {
  color: var(--yb-accent);
}

.yb-accordion-trigger:hover .yb-accordion-icon {
  color: var(--yb-accent);
}

.yb-accordion-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--yb-text-secondary);
  transition: transform 0.3s ease, color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.yb-accordion-icon svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.3s ease;
}

.yb-accordion-item.is-open .yb-accordion-icon svg {
  transform: rotate(180deg);
}

.yb-accordion-item.is-open .yb-accordion-question {
  color: var(--yb-accent);
}

.yb-accordion-item.is-open .yb-accordion-icon {
  color: var(--yb-accent);
}

/* Accordion Answer (H3 wrapper) */
.yb-accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.3s ease, padding 0.3s ease;
  opacity: 0;
}

.yb-accordion-item.is-open .yb-accordion-body {
  max-height: 600px;
  opacity: 1;
  padding-bottom: 1.125rem;
}

.yb-accordion-answer {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--yb-text-secondary);
  margin: 0;
  padding-right: 2rem;
}

.yb-accordion-answer a {
  color: var(--yb-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.yb-accordion-answer a:hover {
  color: var(--yb-text-primary);
}

/* FAQ Footer Links */
.yb-faq-footer {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.yb-faq-footer-label {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 0.8125rem;
  color: var(--yb-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.yb-faq-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0;
  color: var(--yb-text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--yb-border-light);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.yb-faq-link:hover {
  color: var(--yb-accent);
  border-bottom-color: var(--yb-accent);
}

.yb-faq-link svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ============================================
   SUBPAGE BASE LAYOUT (FAQ & ABOUT PAGES)
   ============================================ */

.yb-page {
  min-height: 100vh;
  background: var(--yb-bg);
  color: var(--yb-text-primary);
  font-family: var(--yb-font-body);
  -webkit-font-smoothing: antialiased;
}

/* Subpage Navigation */
.yb-subnav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  background: var(--yb-bg-layer1);
  border-bottom: 1px solid var(--yb-border);
  padding-inline: 1rem;
}

@media (min-width: 768px) {
  .yb-subnav {
    padding-inline: 1.5rem;
  }
}

.yb-subnav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 90rem;
  width: 100%;
  margin-inline: auto;
}

.yb-subnav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.yb-subnav-logo {
  height: 22px;
  width: auto;
  display: block;
}

.yb-subnav-brand-text {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0;
  color: var(--yb-text-primary);
}

.yb-subnav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.yb-subnav-link {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0;
  color: var(--yb-text-secondary);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  transition: color 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
}

.yb-subnav-link:hover {
  color: var(--yb-text-primary);
  background: var(--yb-bg-layer2);
}

.yb-subnav-link.is-active {
  color: var(--yb-text-primary);
  border-bottom-color: var(--yb-text-primary);
}

.yb-subnav-btn {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0;
  color: #0f0f0f;
  background: var(--yb-accent);
  text-decoration: none;
  padding: 0.5rem 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: background 0.2s ease, color 0.2s ease;
  border: none;
  cursor: pointer;
}

.yb-subnav-btn:hover {
  background: var(--yb-text-primary);
  color: #0f0f0f;
}

/* Subpage Hero */
.yb-subpage-hero {
  width: 100%;
  background: var(--yb-bg-layer2);
  border-bottom: 1px solid var(--yb-border);
  padding-block: 3rem 2.5rem;
  padding-inline: 1rem;
}

@media (min-width: 768px) {
  .yb-subpage-hero {
    padding-inline: 1.5rem;
  }
}

.yb-subpage-hero-inner {
  max-width: 90rem;
  width: 100%;
  margin-inline: auto;
}

.yb-subpage-label {
  display: inline-block;
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--yb-accent);
  margin-bottom: 0.75rem;
}

.yb-subpage-h1 {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--yb-text-primary);
  margin: 0 0 1rem;
}

.yb-subpage-h1 span {
  color: var(--yb-accent);
}

.yb-subpage-lead {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--yb-text-secondary);
  max-width: 52ch;
  margin: 0;
}

/* Subpage Content Wrapper */
.yb-subpage-content {
  max-width: 90rem;
  width: 100%;
  margin-inline: auto;
  padding-inline: 1rem;
  padding-block: 3rem;
}

@media (min-width: 768px) {
  .yb-subpage-content {
    padding-inline: 1.5rem;
  }
}

/* Content Sections */
.yb-section {
  margin-bottom: 3rem;
}

.yb-section-title {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--yb-text-tertiary);
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--yb-border);
}

.yb-section-h2 {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--yb-text-primary);
  margin: 0 0 0.875rem;
}

.yb-section-h2 span {
  color: var(--yb-accent);
}

.yb-section-h3 {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--yb-text-primary);
  margin: 0 0 0.5rem;
}

.yb-section-p {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--yb-text-secondary);
  margin: 0 0 1rem;
  max-width: 72ch;
}

.yb-section-p:last-child {
  margin-bottom: 0;
}

.yb-section-p a {
  color: var(--yb-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.yb-section-p a:hover {
  color: var(--yb-text-primary);
}

/* Card Grid */
.yb-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--yb-border);
  border: 1px solid var(--yb-border);
  margin-bottom: 2rem;
}

@media (min-width: 480px) {
  .yb-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.yb-card {
  background: var(--yb-bg-layer2);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.yb-card-icon {
  width: 32px;
  height: 32px;
  color: var(--yb-accent);
  margin-bottom: 0.25rem;
  flex-shrink: 0;
}

.yb-card-icon svg {
  width: 100%;
  height: 100%;
}

.yb-card-title {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0;
  color: var(--yb-text-primary);
  margin: 0;
}

.yb-card-desc {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--yb-text-secondary);
  margin: 0;
}

/* Stats Row */
.yb-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  background: var(--yb-border);
  border: 1px solid var(--yb-border);
  margin-bottom: 2rem;
}

.yb-stat {
  background: var(--yb-bg-layer2);
  padding: 1.25rem 1.5rem;
  flex: 1 1 140px;
  border-right: 1px solid var(--yb-border);
  border-bottom: 1px solid var(--yb-border);
}

.yb-stat:last-child {
  border-right: none;
}

.yb-stat-value {
  font-family: var(--yb-font-mono);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--yb-text-primary);
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.yb-stat-label {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--yb-text-tertiary);
}

/* Info Block */
.yb-infoblock {
  background: var(--yb-bg-layer2);
  border: 1px solid var(--yb-border);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.yb-infoblock-label {
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--yb-accent);
  margin-bottom: 0.75rem;
}

.yb-infoblock p {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--yb-text-secondary);
  margin: 0 0 0.75rem;
  max-width: 72ch;
}

.yb-infoblock p:last-child {
  margin-bottom: 0;
}

/* Horizontal Rule */
.yb-hr {
  border: none;
  border-top: 1px solid var(--yb-border);
  margin-block: 2.5rem;
}

/* Subpage FAQ Accordion (reuses base accordion, slight size tweak) */
.yb-subpage-content .yb-accordion-question {
  font-size: 0.875rem;
}

.yb-subpage-content .yb-accordion-answer {
  font-size: 0.875rem;
}

/* Subpage Footer / CTA */
.yb-subpage-footer {
  background: var(--yb-bg-layer2);
  border-top: 1px solid var(--yb-border);
  padding-block: 2.5rem;
  padding-inline: 1rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .yb-subpage-footer {
    padding-inline: 1.5rem;
  }
}

.yb-subpage-footer-inner {
  max-width: 90rem;
  width: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.yb-subpage-footer-text {
  font-family: var(--yb-font-geist);
  font-weight: 400;
  font-size: 0.875rem;
  color: var(--yb-text-tertiary);
}

.yb-subpage-footer-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.yb-footer-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0;
  color: #0f0f0f;
  background: var(--yb-accent);
  text-decoration: none;
  padding: 0.625rem 1.25rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.yb-footer-cta:hover {
  background: var(--yb-text-primary);
  color: #0f0f0f;
}

.yb-footer-cta svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.yb-footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--yb-font-geist);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0;
  color: var(--yb-text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--yb-border-light);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.yb-footer-link:hover {
  color: var(--yb-accent);
  border-bottom-color: var(--yb-accent);
}

.yb-footer-link svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

/* Breadcrumb */
.yb-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-family: var(--yb-font-geist);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--yb-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.yb-breadcrumb a {
  color: var(--yb-text-tertiary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.yb-breadcrumb-sep {
  color: var(--yb-border-light);
}

.yb-breadcrumb-current {
  color: var(--yb-text-secondary);
}

/* Two-column layout for about page */
.yb-two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .yb-two-col {
    grid-template-columns: 1fr 1fr;
  }
}

.yb-two-col-wide {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .yb-two-col-wide {
    grid-template-columns: 2fr 1fr;
  }
}

/* List styles */
.yb-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.yb-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-family: var(--yb-font-geist);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--yb-text-secondary);
}

.yb-list li::before {
  content: "→";
  color: var(--yb-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05em;
}

/* Tag / Badge */
.yb-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  background: var(--yb-bg-layer1);
  border: 1px solid var(--yb-border-light);
  font-family: var(--yb-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--yb-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.yb-tag--accent {
  color: var(--yb-accent);
  border-color: var(--yb-accent-dark);
  background: rgba(73, 196, 201, 0.08);
}

/* Ticker / highlight inline */
.yb-highlight {
  color: var(--yb-accent);
  font-weight: 700;
}

/* Scroll margin for anchor targets */
.yb-anchor-target {
  scroll-margin-top: 64px;
}

/* ============================================
   RESPONSIVE HELPERS
   ============================================ */

@media (max-width: 479px) {
  .yb-stat {
    flex-basis: 100%;
    border-right: none;
  }

  .yb-subpage-footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 767px) {
  .yb-subnav-links {
    display: none;
  }

  .yb-hero-h1 {
    font-size: 1.5rem;
  }

  .yb-subpage-h1 {
    font-size: 1.75rem;
  }
}