/* Split from staff-portfolio.css + dark.css (Kate Jie Yu portfolio). */

/* ==========================================================================
   COMPONENTS
   ========================================================================== */
/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-2xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  border-radius: var(--border-radius-lg);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  min-height: 48px;
  position: relative;
}
.button--primary {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}
.button--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.button--secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.button--secondary:hover {
  background-color: var(--color-background-secondary);
  border-color: var(--color-text-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
/* Tags */
.tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  background-color: rgba(37, 99, 235, 0.1);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-md);
  text-transform: uppercase;
  letter-spacing: 0.025em;
  margin-right: var(--space-sm);
  margin-bottom: var(--space-sm);
}
/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  z-index: 1000;
}
.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}
.nav__logo img {
  border-radius: var(--border-radius-sm);
}
.nav__logo-text {
  font-size: var(--font-size-lg);
}
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}
.nav__link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--space-sm) 0;
  transition: color var(--transition-fast);
  position: relative;
}
.nav__link:hover {
  color: var(--color-text);
}
.nav__link--cta {
  background-color: var(--color-primary);
  color: white;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius-md);
}
.nav__link--cta:hover {
  background-color: var(--color-primary-dark);
  color: white;
}
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}
.nav__toggle-line {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
  transition: all var(--transition-fast);
}
/* Mobile Navigation */
@media (max-width: 768px) {
  .nav__menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--color-background);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--space-3xl);
    gap: var(--space-lg);
    display: none;
    border-top: 1px solid var(--color-border-light);
  }
  .nav__menu--active {
    display: flex;
  }
  .nav__toggle {
    display: flex;
  }
  .nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(2) {
    opacity: 0;
  }
  .nav__toggle[aria-expanded="true"] .nav__toggle-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
  .nav__link {
    font-size: var(--font-size-lg);
    padding: var(--space-md) var(--space-sm);
  }
  .nav__logo-text {
    display: none;
  }
}
/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  padding: calc(80px + var(--space-5xl)) 0 var(--space-5xl);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(255, 255, 255, 1) 50%, rgba(16, 185, 129, 0.02) 100%);
}
.hero__content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}
.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}
.hero__highlight {
  color: var(--color-primary);
  position: relative;
}
.hero__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-3xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}
/* ==========================================================================
   IMPACT SECTION
   ========================================================================== */
.impact {
  padding: var(--space-5xl) 0;
  background-color: var(--color-background-secondary);
}
.impact__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}
.impact__card {
  text-align: center;
  padding: var(--space-2xl);
  background-color: var(--color-background);
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}
.impact__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border);
}
.impact__metric {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-sm);
}
.impact__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}
.impact__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}
/* ==========================================================================
   WORK SECTION
   ========================================================================== */
.work {
  padding: var(--space-5xl) 0;
}
.work__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}
.work__card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
}
.work__card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-border);
}
.work__image {
  height: 250px;
  background-color: var(--color-background-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  overflow: hidden;
}
.work__image img {
  max-height: 100%;
  width: auto;
  object-fit: contain;
}
.work__content {
  padding: var(--space-2xl);
}
.work__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  line-height: var(--line-height-tight);
}
.work__meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
  font-weight: var(--font-weight-medium);
}
.work__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}
.work__context, .work__actions, .work__impact {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-sm);
}
.work__context {
  color: var(--color-text-secondary);
}
.work__actions {
  color: var(--color-text-secondary);
}
.work__impact {
  color: var(--color-text-secondary);
}
.work__tags {
  margin-bottom: var(--space-lg);
}
.work__link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.work__link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}
.work__footer {
  text-align: center;
  margin-top: var(--space-4xl);
}
/* ==========================================================================
   VENTURES SECTION - FOUNDER & PRODUCT BUILDER
   ========================================================================== */
.ventures {
  padding: var(--space-5xl) 0;
  background-color: var(--color-background-secondary);
}
.ventures__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}
.venture__card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-normal);
}
.venture__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border);
}
.venture__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-lg);
}
.venture__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
}
.venture__role {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  background-color: rgba(37, 99, 235, 0.1);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-md);
  font-weight: var(--font-weight-medium);
  flex-shrink: 0;
}
.venture__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}
.venture__tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}
.venture__card a {
  text-decoration: none;
}
.venture__card a .da__cta:hover {
  text-decoration: underline;
}
.ee-spotlight-card {
  transition: background-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
}
.ee-spotlight-card:hover {
  background-color: rgba(124,58,237,0.10) !important;
  transform: translateY(-2px);
  box-shadow: 4px 8px 28px rgba(124,58,237,0.18) !important;
}
/* ==========================================================================
   LEADERSHIP SECTION
   ========================================================================== */
.leadership {
  padding: var(--space-5xl) 0;
}
.leadership__content {
  max-width: 800px;
  margin: 0 auto;
}
.leadership__list {
  list-style: none;
  margin-top: var(--space-3xl);
}
.leadership__item {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  padding-left: var(--space-lg);
  position: relative;
}
.leadership__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
}
.leadership__item strong {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}
/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about {
  padding: var(--space-5xl) 0;
  background-color: var(--color-background-secondary);
}
.about__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5xl);
  align-items: start;
  max-width: 1000px;
  margin: 0 auto;
}
.about__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}
.about__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}
.about__contact-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-md);
}
.about__contact-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}
.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.contact__link {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.contact__link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}
.contact__link--primary {
  background-color: var(--color-primary);
  color: white;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--space-sm);
}
.contact__link--primary:hover {
  background-color: var(--color-primary-dark);
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border-light);
  background-color: var(--color-background);
}
.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}
.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}
.footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.footer__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}
.footer__link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer__link:hover {
  color: var(--color-text);
  text-decoration: underline;
}
/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
/* Tablet */
@media (max-width: 768px) {
  .hero__title {
    font-size: var(--font-size-4xl);
  }
  .hero__actions {
    flex-direction: column;
    width: 100%;
  }
  .hero__actions .button {
    width: 100%;
    max-width: 300px;
  }
  .impact__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .work__grid {
    grid-template-columns: 1fr;
  }
  .ventures__grid {
    grid-template-columns: 1fr;
  }
  .about__content {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }
  .footer__content {
    flex-direction: column;
    text-align: center;
  }
}
/* Mobile */
@media (max-width: 480px) {
  :root {
    --container-padding: var(--space-md);
  }
  .hero {
    padding: calc(80px + var(--space-3xl)) 0 var(--space-3xl);
  }
  .hero__title {
    font-size: var(--font-size-3xl);
  }
  .section__title {
    font-size: var(--font-size-3xl);
  }
  .work, .impact, .ventures, .leadership, .about {
    padding: var(--space-3xl) 0;
  }
  .impact__grid {
    grid-template-columns: 1fr;
  }
  .work__grid {
    grid-template-columns: 1fr;
  }
  .work__image {
    height: 160px;
  }
  .ventures__grid {
    grid-template-columns: 1fr;
  }
  .leadership__item {
    font-size: var(--font-size-base);
  }
}

/* ==========================================================================
   MIGHTY COUPONS — PLATFORM ARCHITECTURE DIAGRAM v2
   All classes scoped to .arch prefix. Uses site design tokens throughout.
   ========================================================================== */
/* ── Wrapper ── */
.arch {
  margin: 36px 0 0;
  position: relative;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
/* ── Diagram header ── */
.arch__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background: var(--color-background-secondary, #f9fafb);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 10px 10px 0 0;
  flex-wrap: wrap;
  gap: 8px;
}
.arch__header-label {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--color-text-tertiary, #9ca3af);
}
.arch__header-legend {
  display: flex;
  align-items: center;
  gap: 12px;
}
.arch__legend-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 4px;
}
.arch__legend-dot--ai {
  background: #5b67d8;
}
.arch__legend-dot--platform {
  background: #374151;
}
.arch__legend-dot--actors {
  background: #9ca3af;
  border: 1px solid #d1d5db;
}
.arch__legend-text {
  font-size: 0.625rem;
  color: var(--color-text-tertiary, #9ca3af);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-right: 4px;
}
/* ── Bands (layers) ── */
.arch__band {
  display: flex;
  align-items: stretch;
  border-left: 1px solid var(--color-border, #e5e7eb);
  border-right: 1px solid var(--color-border, #e5e7eb);
}
.arch__band--ai {
  background: #f5f6ff;
  border-top: 2px solid #5b67d8;
}
.arch__band--platform {
  background: var(--color-background, #fff);
  border-top: 1px solid var(--color-border, #e5e7eb);
}
.arch__band--actors {
  background: var(--color-background-secondary, #f9fafb);
  border-top: 1px solid var(--color-border, #e5e7eb);
  border-bottom: 1px solid var(--color-border, #e5e7eb);
  border-radius: 0 0 10px 10px;
}
/* ── Band side label ── */
.arch__band-label {
  width: 52px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--color-border, #e5e7eb);
  padding: 16px 0;
}
.arch__band-label-text {
  font-size: 0.5625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-tertiary, #9ca3af);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  text-align: center;
  line-height: 1.3;
}
.arch__band--ai .arch__band-label-text {
  color: #5b67d8;
}
/* ── Band body ── */
.arch__band-body {
  flex: 1;
  padding: 20px 20px 20px 16px;
}
.arch__band-body--actors {
  display: flex;
  gap: 0;
  padding: 0;
}
/* ── Cell grid ── */
.arch__cells {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
/* ── Individual cells ── */
.arch__cell {
  flex: 1;
  min-width: 150px;
  padding: 14px 16px 12px;
  border-radius: 8px;
  border: 1px solid var(--color-border, #e5e7eb);
  background: var(--color-background, #fff);
  text-align: left;
  cursor: pointer;
  position: relative;
  transition: border-color 150ms ease-out, box-shadow 150ms ease-out, transform 150ms ease-out;
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-family: inherit;
}
.arch__cell:hover {
  border-color: #5b67d8;
  box-shadow: 0 0 0 3px rgba(91, 103, 216, 0.08), 0 2px 8px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
  z-index: 2;
}
.arch__cell:focus-visible {
  outline: 2px solid #5b67d8;
  outline-offset: 2px;
}
.arch__cell--ai {
  background: #fff;
  border-color: rgba(91, 103, 216, 0.2);
}
.arch__cell--ai:hover {
  border-color: #5b67d8;
  background: #fafbff;
}
.arch__cell--platform {
  background: var(--color-background-secondary, #f9fafb);
  border-color: var(--color-border, #e5e7eb);
}
.arch__cell--trust {
  border-left: 3px solid #059669;
}
.arch__cell--trust:hover {
  border-color: #059669;
}
/* Cell inner elements */
.arch__cell-icon {
  display: block;
  color: #5b67d8;
  margin-bottom: 4px;
  opacity: 0.7;
}
.arch__cell--platform .arch__cell-icon {
  color: #6b7280;
}
.arch__cell-accent {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text-tertiary, #d1d5db);
  border-radius: 2px;
  margin-bottom: 8px;
}
.arch__cell--trust .arch__cell-accent {
  background: #059669;
}
.arch__cell-name {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text, #111827);
  line-height: 1.3;
}
.arch__cell-sub {
  display: block;
  font-size: 0.6875rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.4;
  margin-top: 1px;
}
.arch__cell-tag {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.5625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary, #9ca3af);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 3px;
  padding: 1px 5px;
  align-self: flex-start;
}
.arch__cell-tag--trust {
  color: #059669;
  border-color: rgba(5, 150, 105, 0.3);
  background: rgba(5, 150, 105, 0.05);
}
/* ── Full-width connector (AI → Platform) ── */
.arch__connector--full {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0;
  height: 28px;
  position: relative;
  background: var(--color-background, #fff);
  border-left: 1px solid var(--color-border, #e5e7eb);
  border-right: 1px solid var(--color-border, #e5e7eb);
}
.arch__connector--full .arch__connector-line {
  width: 1px;
  height: 12px;
  background: #c7caee;
  margin-top: 4px;
}
.arch__connector--full .arch__connector-label {
  position: absolute;
  left: 68px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.5625rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary, #9ca3af);
}
.arch__connector--full .arch__connector-arrow {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid #c7caee;
}
/* ── Split connector (Platform → Actors) ── */
.arch__connector--split {
  display: flex;
  height: 32px;
  background: var(--color-background, #fff);
  border-left: 1px solid var(--color-border, #e5e7eb);
  border-right: 1px solid var(--color-border, #e5e7eb);
}
.arch__connector-half {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 4px 0;
}
.arch__connector-divider {
  width: 1px;
  align-self: stretch;
}
.arch__connector-half .arch__connector-line {
  width: 1px;
  height: 8px;
}
.arch__connector-half .arch__connector-label {
  font-size: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-text-tertiary, #9ca3af);
}
.arch__connector-half .arch__connector-arrow {
  width: 0;
  height: 0;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-top: 4px solid #d1d5db;
}
/* ── Actor panels ── */
.arch__actor {
  flex: 1;
  padding: 22px 22px 20px;
}
.arch__actor + .arch__actor {
  border-left: 1px solid var(--color-border, #e5e7eb);
}
.arch__actor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.arch__actor-badge {
  font-size: 0.5625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 2px 7px;
  border-radius: 3px;
}
.arch__actor-badge--supply {
  background: rgba(37, 99, 235, 0.08);
  color: #1d4ed8;
  border: 1px solid rgba(37, 99, 235, 0.18);
}
.arch__actor-badge--demand {
  background: rgba(5, 150, 105, 0.08);
  color: #059669;
  border: 1px solid rgba(5, 150, 105, 0.18);
}
.arch__actor-device {
  font-size: 0.5625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary, #9ca3af);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 3px;
  padding: 2px 6px;
}
.arch__actor-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text, #111827);
  letter-spacing: -0.015em;
  margin-bottom: 2px;
}
.arch__actor-sub {
  font-size: 0.75rem;
  color: var(--color-text-secondary, #6b7280);
  margin-bottom: 12px;
}
.arch__actor-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.arch__actor-list li {
  font-size: 0.75rem;
  color: var(--color-text-secondary, #6b7280);
  padding-left: 12px;
  position: relative;
  line-height: 1.5;
}
.arch__actor-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
}
/* ── Actor flow column ── */
.arch__actor-flow {
  width: 96px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-left: 1px solid var(--color-border, #e5e7eb);
  border-right: 1px solid var(--color-border, #e5e7eb);
  padding: 0 8px;
}
.arch__flow-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  width: 100%;
}
.arch__flow-line {
  width: 100%;
  height: 1px;
  position: relative;
}
.arch__flow-row--fwd .arch__flow-line::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -3px;
  border-top: 3px solid transparent;
  border-bottom: 3px solid transparent;
  border-left: 5px solid var(--color-border, #d1d5db);
}
.arch__flow-row--back .arch__flow-line::before {
  content: '';
  position: absolute;
  left: -1px;
  top: -3px;
  border-top: 3px solid transparent;
  border-bottom: 3px solid transparent;
  border-right: 5px solid var(--color-border, #d1d5db);
}
.arch__flow-label {
  font-size: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary, #9ca3af);
  white-space: nowrap;
}
/* ── Caption ── */
.arch__caption {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 20px;
  background: var(--color-background, #fff);
  border: 1px solid var(--color-border, #e5e7eb);
  border-top: none;
  border-radius: 0 0 0 0;
}
.arch__caption-label {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary, #9ca3af);
  white-space: nowrap;
  flex-shrink: 0;
}
.arch__caption-text {
  font-size: 0.75rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.55;
  font-style: italic;
}
/* ── Growth loop ── */
.arch__loop {
  margin-top: 24px;
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 10px;
  overflow: hidden;
}
.arch__loop-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 20px;
  background: var(--color-background-secondary, #f9fafb);
  border-bottom: 1px solid var(--color-border, #e5e7eb);
  flex-wrap: wrap;
}
.arch__loop-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text, #111827);
}
.arch__loop-sub {
  font-size: 0.6875rem;
  color: var(--color-text-tertiary, #9ca3af);
}
.arch__loop-track {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  padding: 20px;
  background: var(--color-background, #fff);
}
.arch__loop-step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 8px;
  background: var(--color-background-secondary, #f9fafb);
  min-width: 140px;
  flex: 1;
  transition: border-color 150ms ease-out;
}
.arch__loop-step:hover {
  border-color: #c7caee;
}
.arch__loop-step--highlight {
  border-color: #c7caee;
  background: #f5f6ff;
}
.arch__loop-num {
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--color-text-tertiary, #9ca3af);
  letter-spacing: 0.05em;
  flex-shrink: 0;
  padding-top: 1px;
}
.arch__loop-num--highlight {
  color: #5b67d8;
}
.arch__loop-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.arch__loop-step-title {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text, #111827);
  line-height: 1.3;
}
.arch__loop-step--highlight .arch__loop-step-title {
  color: #5b67d8;
}
.arch__loop-step-desc {
  display: block;
  font-size: 0.6875rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.45;
}
.arch__loop-arrow {
  font-size: 0.75rem;
  color: var(--color-border, #d1d5db);
  padding: 0 6px;
  flex-shrink: 0;
  align-self: center;
}
/* ── Tooltip ── */
.arch-tip {
  position: fixed;
  z-index: 9999;
  width: 280px;
  background: var(--color-background, #fff);
  border: 1px solid var(--color-border, #e5e7eb);
  border-top: 3px solid #5b67d8;
  border-radius: 8px;
  padding: 14px 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.06);
  pointer-events: none;
  opacity: 0;
  transition: opacity 140ms ease-out;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.arch-tip.is-visible {
  opacity: 1;
}
.arch-tip__title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text, #111827);
  margin: 0 0 10px;
}
.arch-tip__body {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
}
.arch-tip__body dt {
  font-size: 0.5625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary, #9ca3af);
  padding-top: 2px;
  white-space: nowrap;
}
.arch-tip__body dd {
  font-size: 0.75rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.55;
  margin: 0;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border, #f3f4f6);
}
.arch-tip__body dd:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
/* ── Dark mode ── */
@media (prefers-color-scheme: dark) {
  .arch__band--ai {
    background: #12143a;
    border-top-color: #5b67d8;
  }
  .arch__band--platform {
    background: #111827;
  }
  .arch__band--actors {
    background: #161b27;
    border-color: #1f2937;
  }
  .arch__band {
    border-left-color: #1f2937;
    border-right-color: #1f2937;
  }
  .arch__header {
    background: #161b27;
    border-color: #1f2937;
  }
  .arch__header-label, .arch__legend-text {
    color: #4b5563;
  }
  .arch__legend-dot--actors {
    background: #374151;
    border-color: #4b5563;
  }
  .arch__band-label {
    border-right-color: #1f2937;
  }
  .arch__cell {
    background: #1a1f2e;
    border-color: #1f2937;
  }
  .arch__cell--ai {
    background: #1a1b3a;
    border-color: rgba(91, 103, 216, 0.25);
  }
  .arch__cell--ai:hover {
    background: #1d1f44;
    border-color: #5b67d8;
  }
  .arch__cell--platform {
    background: #161b27;
  }
  .arch__cell:hover {
    border-color: #5b67d8;
    box-shadow: 0 0 0 3px rgba(91, 103, 216, 0.12);
  }
  .arch__cell-name {
    color: #f3f4f6;
  }
  .arch__cell-sub {
    color: #4b5563;
  }
  .arch__cell-tag {
    border-color: #374151;
    color: #4b5563;
  }
  .arch__cell-accent {
    background: #374151;
  }
  .arch__connector--full, .arch__connector--split {
    background: #111827;
    border-color: #1f2937;
  }
  .arch__connector-divider {
    background: #1f2937;
  }
  .arch__connector-label {
    color: #4b5563;
  }
  .arch__connector-line {
    background: #374151;
  }
  .arch__connector-arrow {
    border-top-color: #374151;
  }
  .arch__connector-half .arch__connector-line {
    background: #374151;
  }
  .arch__connector-half .arch__connector-arrow {
    border-top-color: #374151;
  }
  .arch__actor {}
  .arch__actor + .arch__actor {
    border-left-color: #1f2937;
  }
  .arch__actor-title {
    color: #f3f4f6;
  }
  .arch__actor-sub {
    color: #4b5563;
  }
  .arch__actor-list li {
    color: #6b7280;
  }
  .arch__actor-list li::before {
    background: #374151;
  }
  .arch__actor-device {
    border-color: #374151;
    color: #4b5563;
  }
  .arch__actor-flow {
    border-left-color: #1f2937;
    border-right-color: #1f2937;
  }
  .arch__flow-line {
    background: #374151;
  }
  .arch__flow-row--fwd .arch__flow-line::after {
    border-left-color: #374151;
  }
  .arch__flow-row--back .arch__flow-line::before {
    border-right-color: #374151;
  }
  .arch__flow-label {
    color: #374151;
  }
  .arch__caption {
    background: #111827;
    border-color: #1f2937;
  }
  .arch__caption-text {
    color: #4b5563;
  }
  .arch__loop {
    border-color: #1f2937;
  }
  .arch__loop-header {
    background: #161b27;
    border-bottom-color: #1f2937;
  }
  .arch__loop-title {
    color: #f3f4f6;
  }
  .arch__loop-sub {
    color: #374151;
  }
  .arch__loop-track {
    background: #111827;
  }
  .arch__loop-step {
    background: #161b27;
    border-color: #1f2937;
  }
  .arch__loop-step--highlight {
    background: #1a1b3a;
    border-color: rgba(91, 103, 216, 0.3);
  }
  .arch__loop-step-title {
    color: #f3f4f6;
  }
  .arch__loop-step-desc {
    color: #4b5563;
  }
  .arch__loop-arrow {
    color: #1f2937;
  }
  .arch-tip {
    background: #1f2937;
    border-color: #374151;
    border-top-color: #5b67d8;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  }
  .arch-tip__title {
    color: #f3f4f6;
  }
  .arch-tip__body dt {
    color: #4b5563;
  }
  .arch-tip__body dd {
    color: #9ca3af;
    border-bottom-color: #374151;
  }
}
/* ── Responsive ── */
@media (max-width: 700px) {
  .arch__band {
    flex-direction: column;
  }
  .arch__band-label {
    width: 100%;
    height: 28px;
    border-right: none;
    border-bottom: 1px solid var(--color-border, #e5e7eb);
    writing-mode: horizontal-tb;
    transform: none;
    flex-direction: row;
  }
  .arch__band-label-text {
    writing-mode: horizontal-tb;
    transform: none;
  }
  .arch__band-body {
    padding: 14px;
  }
  .arch__band-body--actors {
    flex-direction: column;
    padding: 0;
  }
  .arch__actor + .arch__actor {
    border-left: none;
    border-top: 1px solid var(--color-border, #e5e7eb);
  }
  .arch__actor-flow {
    width: 100%;
    height: 44px;
    flex-direction: row;
    border-left: none;
    border-right: none;
    border-top: 1px solid var(--color-border, #e5e7eb);
    border-bottom: 1px solid var(--color-border, #e5e7eb);
    padding: 0 16px;
  }
  .arch__cells {
    flex-direction: column;
  }
  .arch__cell {
    min-width: unset;
  }
  .arch__connector--full .arch__connector-label {
    display: none;
  }
  .arch__loop-track {
    flex-direction: column;
    gap: 2px;
  }
  .arch__loop-arrow {
    transform: rotate(90deg);
    align-self: flex-start;
    padding-left: 20px;
  }
  .arch__loop-step {
    min-width: unset;
  }
}
/* ==========================================================================
   SYNCOPRO — AI DECISION SKILLS INFRASTRUCTURE DIAGRAM
   All classes prefixed adl__ / adl-section__ — zero collision with arch__
   ========================================================================== */
.adl-section__header {
  text-align: center;
  margin-bottom: 36px;
}
.adl-section__header-eyebrow {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #7c3aed;
  margin-bottom: 8px;
}
.adl-section__header-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #111827;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.adl-section__header-sub {
  font-size: 0.875rem;
  color: #6b7280;
  line-height: 1.6;
  max-width: 520px;
  margin: 0 auto;
}
/* ── Layer wrapper ── */
.adl {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 0;
}
.adl__label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  padding-left: 4px;
}
.adl__num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 700;
  flex-shrink: 0;
}
.adl__text {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.adl__badge {
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 20px;
}
/* Layer colour schemes */
.adl--entry .adl__num {
  background: #ede9fe;
  color: #6d28d9;
}
.adl--entry .adl__text {
  color: #7c3aed;
}
.adl--engine .adl__num {
  background: #e0f2fe;
  color: #0369a1;
}
.adl--engine .adl__text {
  color: #0284c7;
}
.adl--future .adl__num {
  background: #f0fdf4;
  color: #15803d;
}
.adl--future .adl__text {
  color: #16a34a;
}
.adl__badge--mvp {
  background: #dbeafe;
  color: #1d4ed8;
}
.adl__badge--future {
  background: #d1fae5;
  color: #065f46;
}
/* ── Layer box ── */
.adl__box {
  width: 100%;
  border-radius: 12px;
  padding: 20px 22px;
  border: 1.5px solid transparent;
}
.adl--entry .adl__box {
  background: #faf8ff;
  border-color: #ddd6fe;
}
.adl--engine .adl__box {
  background: #f0f9ff;
  border-color: #bae6fd;
}
.adl--future .adl__box {
  background: #f0fdf4;
  border-color: #bbf7d0;
}
/* ── Cards grid ── */
.adl__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.adl__card {
  background: #ffffff;
  border-radius: 8px;
  padding: 14px 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border: 1.5px solid transparent;
}
.adl__card--entry {
  border-color: #e8e3ff;
}
.adl__card--engine {
  border-color: #bae6fd;
}
.adl__card--future {
  border-color: #bbf7d0;
  opacity: 0.88;
}
.adl__icon {
  display: inline-block;
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 4px;
  margin-bottom: 8px;
  align-self: flex-start;
}
.adl__icon--entry {
  background: rgba(124, 58, 237, 0.10);
  color: #6d28d9;
}
.adl__icon--engine {
  background: rgba(37, 99, 235, 0.10);
  color: #1d4ed8;
}
.adl__icon--future {
  background: rgba(16, 185, 129, 0.10);
  color: #059669;
}
.adl__card strong {
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.3;
  display: block;
}
.adl--entry .adl__card strong {
  color: #3730a3;
}
.adl--engine .adl__card strong {
  color: #075985;
}
.adl--future .adl__card strong {
  color: #14532d;
}
.adl__card p {
  font-size: 0.6875rem;
  color: #6b7280;
  line-height: 1.45;
  margin: 0;
}
/* ── Flow arrows ── */
.adl__arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 0;
}
.adl__arrow-line {
  width: 1.5px;
  height: 22px;
  background: linear-gradient(to bottom, #c4b5fd, #93c5fd);
}
.adl__arrow-line--short {
  height: 12px;
}
.adl__arrow-label {
  font-size: 0.625rem;
  font-weight: 500;
  color: #9ca3af;
  letter-spacing: 0.04em;
  margin: 3px 0;
  white-space: nowrap;
}
.adl__arrow-head {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid #93c5fd;
}
/* ── Execution band ── */
.adl__exec-band {
  width: 100%;
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 8px;
  padding: 12px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.adl__exec-label {
  font-size: 0.6875rem;
  font-weight: 700;
  color: #475569;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.adl__exec-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.adl__chip {
  font-size: 0.6875rem;
  font-weight: 500;
  color: #64748b;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 3px 10px;
}
/* ── Feedback loop ── */
.adl__feedback {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0 0;
}
.adl__feedback-line {
  width: 1.5px;
  height: 16px;
  background: linear-gradient(to bottom, #86efac, #a5b4fc);
}
.adl__feedback-label {
  font-size: 0.625rem;
  font-weight: 700;
  color: #7c3aed;
  letter-spacing: 0.04em;
  margin-top: 4px;
  white-space: nowrap;
}
/* ── Legend ── */
.adl__legend {
  display: flex;
  gap: 18px;
  margin-top: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.adl__legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.6875rem;
  color: #6b7280;
  font-weight: 500;
}
.adl__legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}
.adl__legend-dot--entry {
  background: #a78bfa;
}
.adl__legend-dot--engine {
  background: #38bdf8;
}
.adl__legend-dot--future {
  background: #4ade80;
}
.adl__legend-dot--exec {
  background: #e2e8f0;
  border: 1px solid #cbd5e1;
}
/* =========================
   DIAGRAM — SyncoPro Flywheel (Fig.0)
   ========================= */

.cs-sync-canvas {
  padding: 34px 28px;
  width: 100%;
}

.cs-sync {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
}

.cs-sync__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.cs-sync__kicker {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary, #9ca3af);
}

.cs-sync__pill {
  font-size: 0.75rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.4;
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-border, #e5e7eb);
  background: var(--color-surface, #fff);
}

.cs-sync__grid {
  display: grid;
  grid-template-columns: 1.15fr 1.35fr 1.15fr;
  gap: 14px;
  align-items: stretch;
}

.cs-sync__col {
  background: var(--color-surface, #fff);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 12px;
  padding: 16px 16px 14px;
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.06);
}

.cs-sync__col--core {
  background: rgba(124, 58, 237, 0.06);
  border: 1.5px solid rgba(124, 58, 237, 0.35);
}

.cs-sync__col-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.cs-sync__col-eyebrow {
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-tertiary, #9ca3af);
}

.cs-sync__col-eyebrow--core {
  color: #6d28d9;
}

.cs-sync__badge {
  font-size: 0.625rem;
}

.cs-sync__title {
  font-size: 0.95rem;
  font-weight: 900;
  color: var(--color-text, #111827);
  line-height: 1.2;
  margin: 0 0 8px;
}

.cs-sync__desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.55;
  margin: 0 0 12px;
}

.cs-sync__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cs-sync__sub {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border-light, #f3f4f6);
}

.cs-sync__sub-eyebrow {
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-tertiary, #9ca3af);
  margin-bottom: 6px;
}

.cs-sync__sub-desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.55;
  margin: 0;
}

.cs-sync__mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.cs-sync__mini {
  background: var(--color-surface, #fff);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 10px;
  padding: 12px;
}

.cs-sync__mini--muted {
  background: var(--color-surface-muted, #f9fafb);
}

.cs-sync__mini-kicker {
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-tertiary, #9ca3af);
  margin-bottom: 6px;
}

.cs-sync__mini-title {
  font-size: 0.9rem;
  font-weight: 900;
  color: var(--color-text, #111827);
  margin: 0 0 6px;
}

.cs-sync__mini-desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.5;
  margin: 0;
}

.cs-sync__stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cs-sync__out {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(124, 58, 237, 0.18);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.cs-sync__out-label {
  font-size: 0.75rem;
  font-weight: 800;
  color: #6d28d9;
}

.cs-sync__arrows {
  display: grid;
  grid-template-columns: 1.15fr 1.35fr 1.15fr;
  gap: 14px;
  margin-top: 10px;
  align-items: center;
}

.cs-sync__arrow {
  text-align: center;
  color: var(--color-text-tertiary, #9ca3af);
  font-size: 0.9rem;
}

.cs-sync__arrow--loop {
  font-size: 0.85rem;
}

.cs-sync__bottom {
  margin-top: 10px;
  display: flex;
  justify-content: center;
}

.cs-sync__bottom-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border, #e5e7eb);
  background: var(--color-surface, #fff);
  font-size: 0.8125rem;
  color: var(--color-text-secondary, #6b7280);
  line-height: 1.4;
  flex-wrap: wrap;
  justify-content: center;
}

.cs-sync__bottom-strong {
  font-weight: 900;
  color: var(--color-text, #111827);
}

.cs-sync__dot {
  color: var(--color-text-tertiary, #9ca3af);
}

/* Responsive (replaces your inline <style>@media (max-width:900px)...</style>) */
@media (max-width: 900px) {
  .cs-sync__grid { grid-template-columns: 1fr; }
  .cs-sync__arrows { display: none; }
}
/* ── Responsive ── */
@media (max-width: 768px) {
  .adl__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .adl__exec-band {
    flex-direction: column;
    align-items: flex-start;
  }
  .adl__exec-chips {
    justify-content: flex-start;
  }
  .adl-section__header-title {
    font-size: 1.125rem;
  }
}
@media (max-width: 480px) {
  .adl__grid {
    grid-template-columns: 1fr;
  }
  .adl__arrow-label, .adl__feedback-label {
    font-size: 0.5625rem;
  }
}

/* ==========================================================================
   FOUNDER SYSTEMS DIAGRAM — Branch connector responsive
   ========================================================================== */
.founder-diagram__branch-svg {
  display: block;
}
.founder-diagram__single-arrow {
  display: none;
}

@media (max-width: 600px) {
  .founder-diagram__branch-svg {
    display: none;
  }
  .founder-diagram__single-arrow {
    display: flex !important;
  }
}

/* ==========================================================================
   FOUNDER SYSTEMS DIAGRAM — Dual layout (desktop tree / mobile vertical)
   ========================================================================== */
.founder-diagram__header {
  padding: 14px 28px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-background-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}
.founder-diagram__header-rule {
  flex: 1;
  height: 1px;
}
/* Desktop shown, mobile hidden by default */
.founder-diagram__desktop { display: block; }
.founder-diagram__mobile  { display: none; }

@media (max-width: 600px) {
  .founder-diagram__desktop { display: none; }
  .founder-diagram__mobile  { display: block; }

  .founder-diagram__header {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 4px;
  }
  .founder-diagram__header-rule {
    display: none;
  }
}

/* ==========================================================================
   DECISION ARCHITECTURE 3 LAYERS — Dual layout
   ========================================================================== */
.da3__header {
  padding: 14px 28px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-background-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}
.da3__header-rule {
  flex: 1;
  height: 1px;
}

/* Desktop: horizontal 3-column grid, no connector columns */
.da3__desktop {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: stretch;
}
.da3__mobile { display: none; }

@media (max-width: 600px) {
  .da3__desktop { display: none !important; }
  .da3__mobile  { display: block !important; }

  .da3__header {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 4px;
  }
  .da3__header-rule { display: none; }

  .da3__mobile-layer {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
  }
 /* .da3__mobile-arrow {
    display: flex;
    justify-content: center;
    padding: 4px 0;
    background: var(--color-background-secondary);
  }*/
}

/* ==========================================================================
   HERO PILLAR STRIP — Mobile: outlined pills, no grey background fill
   ========================================================================== */
.hero__pillar-strip {
  margin-bottom: var(--space-xl);
}
.hero__pillar-desktop {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}
.hero__pillar-mobile { display: none; }

@media (max-width: 600px) {
  .hero__pillar-desktop { display: none; }
  .hero__pillar-mobile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
  }
  .hero__pillar-item {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.02em;
    padding: 6px 20px;
    border-radius: 6px;
    white-space: nowrap;
  }
  .hero__pillar-item--blue {
    color: var(--color-primary);
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.2);
    box-shadow: 4px 4px 4px rgba(37, 99, 235, 0.28);
    /*box-shadow: none;*/
  }
  .hero__pillar-item--yellow {
    color: var(--color-warning);
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
    box-shadow: 4px 4px 4px rgba(245, 158, 11, 0.28);
    /*box-shadow: none;*/
  }
  .hero__pillar-item--green {
    color: var(--color-success);
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    box-shadow: 4px 4px 4px rgba(16, 185, 129, 0.28);
    /*box-shadow: none;*/
  }
}

/* ==========================================================================
   ANIMATIONS
   Extends the existing 250ms / ease-out / translateY vocabulary.
   All gated behind prefers-reduced-motion.
   ========================================================================== */

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* -- Hero entrance (index.html) ------------------------------------------ */
@media (prefers-reduced-motion: no-preference) {
  .hero__label {
    animation: fadeSlideUp 0.5s ease-out both;
    animation-delay: 0.05s;
  }
  .hero__title {
    animation: fadeSlideUp 0.55s ease-out both;
    animation-delay: 0.15s;
  }
  .hero__description {
    animation: fadeSlideUp 0.55s ease-out both;
    animation-delay: 0.28s;
  }
  .hero__actions {
    animation: fadeSlideUp 0.5s ease-out both;
    animation-delay: 0.4s;
  }
  .hero__pillar-strip {
    animation: fadeSlideUp 0.5s ease-out both;
    animation-delay: 0.52s;
  }

  /* -- Nav entrance ------------------------------------------------------- */
  .header {
    animation: fadeIn 0.4s ease-out both;
  }

  /* -- Work card tag hover accent ----------------------------------------- */
  .work__link {
    transition: color var(--transition-fast), gap var(--transition-fast);
  }
  .work__link:hover {
    gap: var(--space-md);
  }
}