/* ==========================================================================
   DataPumpBridge – Design System
   1. Tokens  2. Base  3. Buttons  4. Badges  5. Cards & icons
   6. Sections  7. Header  8. Hero  9. Workflow  10. Download  11. Footer
   ========================================================================== */

/* 1. Tokens */

:root {
  --dpb-white: #ffffff;
  --dpb-surface: #f6f9fd;
  --dpb-surface-tint: #eef5ff;
  --dpb-gray-100: #f1f4f8;
  --dpb-border: #dde7f3;
  --dpb-ink: #1b2a41;
  --dpb-muted: #5b6b82;
  --dpb-blue-50: #e8f1ff;
  --dpb-blue-500: #3b82f6;
  --dpb-blue-600: #2563eb;
  --dpb-blue-700: #1d4ed8;
  --dpb-turquoise-50: #dff7f4;
  --dpb-turquoise-500: #14b8a6;
  --dpb-turquoise-700: #0f766e;
  --dpb-amber-50: #fff4dc;
  --dpb-amber-700: #92620a;
  --dpb-gradient-accent: linear-gradient(135deg, var(--dpb-blue-600), var(--dpb-turquoise-500));
  --dpb-gradient-soft: linear-gradient(135deg, var(--dpb-blue-50), var(--dpb-turquoise-50));
  --dpb-font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --dpb-radius-sm: 0.625rem;
  --dpb-radius-md: 1rem;
  --dpb-radius-lg: 1.5rem;
  --dpb-radius-pill: 999px;
  --dpb-shadow-sm: 0 1px 2px rgba(27, 42, 65, 0.05), 0 2px 8px rgba(27, 42, 65, 0.05);
  --dpb-shadow-md: 0 10px 30px rgba(37, 99, 235, 0.10);
  --dpb-shadow-lg: 0 20px 50px rgba(37, 99, 235, 0.14);
  --dpb-section-space: 4rem;
  --dpb-transition: 0.2s ease;
}

@media (min-width: 48rem) {
  :root { --dpb-section-space: 6rem; }
}

/* 2. Base */

body {
  font-family: var(--dpb-font-body);
  color: var(--dpb-ink);
  background: var(--dpb-white);
  -webkit-font-smoothing: antialiased;
}

.dpb-skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 2000;
  padding: 0.6rem 1rem;
  background: var(--dpb-blue-600);
  color: var(--dpb-white);
  border-radius: var(--dpb-radius-sm);
  text-decoration: none;
}

.dpb-skip-link:focus { top: 1rem; color: var(--dpb-white); }

.dpb-eyebrow {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dpb-turquoise-700);
}

.dpb-lead {
  max-width: 38rem;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--dpb-muted);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--dpb-blue-500);
  outline-offset: 3px;
}

/* 3. Buttons */

.dpb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: var(--dpb-radius-pill);
  transition: transform var(--dpb-transition), box-shadow var(--dpb-transition), background-color var(--dpb-transition);
}

.dpb-btn--primary {
  color: var(--dpb-white);
  background: var(--dpb-blue-600);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}

.dpb-btn--primary:hover,
.dpb-btn--primary:focus-visible {
  color: var(--dpb-white);
  background: var(--dpb-blue-700);
  transform: translateY(-1px);
}

.dpb-btn--primary:disabled {
  color: var(--dpb-muted);
  background: var(--dpb-white);
  border-color: var(--dpb-border);
  box-shadow: none;
  opacity: 1;
  cursor: not-allowed;
}

.dpb-btn--ghost {
  color: var(--dpb-blue-700);
  background: var(--dpb-white);
  border-color: var(--dpb-border);
}

.dpb-btn--ghost:hover,
.dpb-btn--ghost:focus-visible {
  color: var(--dpb-blue-700);
  border-color: var(--dpb-blue-500);
  box-shadow: var(--dpb-shadow-sm);
}

.dpb-btn--sm { padding: 0.5rem 1.15rem; font-size: 0.9375rem; }

.dpb-btn--lg { padding: 1rem 2rem; font-size: 1.0625rem; }

/* 4. Badges */

.dpb-badge {
  display: inline-block;
  padding: 0.35rem 0.8rem;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--dpb-radius-pill);
}

.dpb-badge--testing { color: var(--dpb-turquoise-700); background: var(--dpb-turquoise-50); }

.dpb-badge--dev { color: var(--dpb-blue-700); background: var(--dpb-blue-50); }

.dpb-badge--planned { color: var(--dpb-amber-700); background: var(--dpb-amber-50); }

/* 5. Cards & icons */

.dpb-card {
  padding: 1.75rem;
  background: var(--dpb-white);
  border: 1px solid var(--dpb-border);
  border-radius: var(--dpb-radius-lg);
  box-shadow: var(--dpb-shadow-sm);
  transition: transform var(--dpb-transition), box-shadow var(--dpb-transition);
}

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

.dpb-card__title {
  margin-bottom: 0.5rem;
  font-size: 1.375rem;
  font-weight: 700;
}

.dpb-card__text {
  margin-bottom: 0;
  line-height: 1.65;
  color: var(--dpb-muted);
}

.dpb-icon-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  color: var(--dpb-blue-600);
  background: var(--dpb-gradient-soft);
  border-radius: var(--dpb-radius-md);
}

.dpb-icon-tile--lg {
  width: 5rem;
  height: 5rem;
  border-radius: var(--dpb-radius-lg);
}

/* 6. Sections */

.dpb-section { padding: var(--dpb-section-space) 0; }

.dpb-section--tint { background: var(--dpb-surface-tint); }

.dpb-section__head { margin-bottom: 3rem; }

.dpb-section__title {
  font-size: clamp(1.75rem, 1.2rem + 2vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* 7. Header */

.dpb-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--dpb-border);
  backdrop-filter: blur(8px);
}

.dpb-navbar { padding: 0.75rem 0; }

.dpb-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.1875rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--dpb-ink);
  text-decoration: none;
}

.dpb-brand:hover { color: var(--dpb-ink); }

.dpb-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--dpb-white);
  background: var(--dpb-gradient-accent);
  border-radius: 0.75rem;
}

.dpb-navbar .nav-link {
  padding: 0.5rem 0.9rem;
  font-weight: 500;
  color: var(--dpb-muted);
  border-radius: var(--dpb-radius-pill);
}

.dpb-navbar .nav-link:hover,
.dpb-navbar .nav-link.active { color: var(--dpb-blue-700); }

@media (min-width: 62rem) {
  .dpb-navbar .nav-link:hover,
  .dpb-navbar .nav-link.active { background: var(--dpb-blue-50); }
}

.dpb-navbar__toggler { border-color: var(--dpb-border); }

/* 8. Hero */

.dpb-hero {
  padding: 3rem 0 4rem;
  background:
    radial-gradient(60rem 30rem at 85% -10%, var(--dpb-turquoise-50), transparent 60%),
    linear-gradient(180deg, var(--dpb-surface-tint), var(--dpb-white));
}

@media (min-width: 48rem) {
  .dpb-hero { padding: 5rem 0 6rem; }
}

.dpb-hero__title {
  margin-bottom: 1.25rem;
  font-size: clamp(2.25rem, 1.5rem + 3.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.dpb-hero__visual {
  padding: 1rem;
  background: var(--dpb-white);
  border: 1px solid var(--dpb-border);
  border-radius: 2rem;
  box-shadow: var(--dpb-shadow-lg);
}

.dpb-hero__visual svg { display: block; width: 100%; height: auto; }

/* 9. Workflow */

.dpb-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.dpb-flow__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 17rem;
  padding: 1.75rem 1.5rem;
  text-align: center;
  background: var(--dpb-white);
  border: 1px solid var(--dpb-border);
  border-radius: var(--dpb-radius-lg);
  box-shadow: var(--dpb-shadow-md);
}

.dpb-flow__number {
  margin: 1.25rem 0 0.25rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dpb-turquoise-700);
}

.dpb-flow__title {
  margin: 0;
  font-size: 1.1875rem;
  font-weight: 700;
}

.dpb-flow__arrow {
  display: flex;
  color: var(--dpb-blue-500);
  transform: rotate(90deg);
}

@media (min-width: 62rem) {
  .dpb-flow {
    flex-direction: row;
    justify-content: center;
    gap: 1.5rem;
  }
  .dpb-flow__step { width: auto; flex: 1 1 0; }
  .dpb-flow__arrow { transform: none; }
}

/* 10. Download */

.dpb-download {
  padding: 2rem;
  background: var(--dpb-gradient-soft);
  border: 1px solid var(--dpb-border);
  border-radius: 2rem;
  box-shadow: var(--dpb-shadow-md);
}

@media (min-width: 48rem) {
  .dpb-download { padding: 3.5rem; }
}

/* 11. Footer */

.dpb-footer {
  padding: 3.5rem 0 2rem;
  background: var(--dpb-gray-100);
  border-top: 1px solid var(--dpb-border);
}

.dpb-footer__text { color: var(--dpb-muted); }

.dpb-footer__title {
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dpb-ink);
}

.dpb-footer__link {
  display: inline-block;
  padding: 0.25rem 0;
  color: var(--dpb-muted);
  text-decoration: none;
}

.dpb-footer__link:hover { color: var(--dpb-blue-700); text-decoration: underline; }

.dpb-footer__rule {
  margin: 2rem 0 1.25rem;
  border-color: var(--dpb-border);
  opacity: 1;
}

.dpb-footer__small { font-size: 0.875rem; color: var(--dpb-muted); }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .dpb-card, .dpb-btn { transition: none; }
}

/* 12. Software Screenshot & Video Frames (Reusable) */

/* Software window frame container */

.dpb-screenshot-frame {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--dpb-white);
  border: 1px solid var(--dpb-border);
  border-radius: 1.5rem;
  box-shadow: var(--dpb-shadow-lg);
  transition: box-shadow var(--dpb-transition);
}

.dpb-screenshot-frame:hover {
  box-shadow: 0 30px 60px rgba(37, 99, 235, 0.15);
}

/* Window title bar */

.dpb-screenshot-frame__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: var(--dpb-surface);
  border-bottom: 1px solid var(--dpb-border);
  flex-shrink: 0;
}

/* Traffic light dots (macOS style) */

.dpb-screenshot-frame__dots {
  display: flex;
  gap: 0.5rem;
}

.dpb-screenshot-frame__dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.dpb-screenshot-frame__dot--red { background: #ff5f56; }

.dpb-screenshot-frame__dot--amber { background: #ffbd2e; }

.dpb-screenshot-frame__dot--green { background: #27c93f; }

/* Window title text */

.dpb-screenshot-frame__title {
  flex: 1;
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dpb-muted);
  text-align: center;
}

/* Content area with 16:9 aspect ratio */

.dpb-screenshot-frame__content {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #f0f4f8, #f8fbff);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Placeholder content (for screenshots, charts, etc.) */

.dpb-screenshot-frame__placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dpb-muted);
  font-size: 0.9375rem;
  text-align: center;
  padding: 2rem;
}

/* Video preview overlay (optional) */

.dpb-screenshot-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 1.25rem;
}

/* SVG play button for video preview */

.dpb-screenshot-video__play {
  position: absolute;
  width: 4rem;
  height: 4rem;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--dpb-transition), background var(--dpb-transition);
  z-index: 10;
}

.dpb-screenshot-video__play:hover {
  transform: scale(1.08);
  background: var(--dpb-white);
}

.dpb-screenshot-video__play svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--dpb-blue-600);
  margin-left: 0.2rem;
}

/* Product-specific data attribute support */

.dpb-screenshot-frame[data-product="freequotes"] .dpb-screenshot-frame__title::after {
  content: " – FreeQuotes";
}

.dpb-screenshot-frame[data-product="taipan"] .dpb-screenshot-frame__title::after {
  content: " – TaiPan";
}

.dpb-screenshot-frame[data-product="ib"] .dpb-screenshot-frame__title::after {
  content: " – Interactive Brokers";
}

/* Responsive adjustments */

@media (max-width: 575px) {
  .dpb-screenshot-frame__header { padding: 0.75rem 1rem; }
  .dpb-screenshot-frame__title { font-size: 0.8125rem; }
  .dpb-screenshot-video__play { width: 3rem; height: 3rem; }
  .dpb-screenshot-video__play svg { width: 1.1rem; height: 1.1rem; }
}

/* ==========================================================================
   13. Spacing system, header rebuild, homepage refinements
   ========================================================================== */

:root {
  --dpb-space-1: 0.5rem;
  --dpb-space-2: 1rem;
  --dpb-space-3: 1.5rem;
  --dpb-space-4: 2rem;
  --dpb-space-5: 3rem;
  --dpb-space-6: 4rem;
  --dpb-header-height: 4.75rem;
  --dpb-container-max: 72rem;
  --dpb-section-space: 4rem;
  --dpb-section-head-space: 2.5rem;
  --dpb-card-padding: 1.5rem;
}

@media (min-width: 48rem) {
  :root {
    --dpb-section-space: 5.5rem;
    --dpb-section-head-space: 3.5rem;
    --dpb-card-padding: 2rem;
  }
}

html { scroll-padding-top: calc(var(--dpb-header-height) + 1rem); }

.container {
  --bs-gutter-x: 2rem;
  max-width: var(--dpb-container-max);
}

/* Header */

.dpb-navbar {
  min-height: var(--dpb-header-height);
  padding: 0;
}

.dpb-navbar > .container { min-height: var(--dpb-header-height); }

.dpb-navbar .navbar-brand {
  margin-right: var(--dpb-space-2);
  padding: 0;
}

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

.dpb-navbar .nav-link {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 0.6rem 0.9rem;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.25;
  text-align: left;
  color: var(--dpb-muted);
  background: transparent;
  border: 0;
  border-radius: var(--dpb-radius-pill);
  transition: color var(--dpb-transition), background-color var(--dpb-transition);
}

.dpb-navbar .nav-link:hover,
.dpb-navbar .nav-link:focus-visible,
.dpb-navbar .nav-link.show {
  color: var(--dpb-blue-700);
  background: var(--dpb-blue-50);
}

.dpb-navbar .nav-link:focus-visible {
  outline: 3px solid var(--dpb-blue-500);
  outline-offset: 2px;
}

.dpb-navbar__toggler {
  padding: 0.5rem 0.65rem;
  border-radius: var(--dpb-radius-sm);
}

.dpb-navbar__toggler:focus { box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.35); }

.dpb-dropdown {
  min-width: 12rem;
  padding: 0.5rem;
  background: var(--dpb-white);
  border: 1px solid var(--dpb-border);
  border-radius: var(--dpb-radius-md);
  box-shadow: var(--dpb-shadow-lg);
}

.dpb-dropdown .dropdown-item {
  padding: 0.6rem 0.85rem;
  font-weight: 500;
  color: var(--dpb-ink);
  border-radius: var(--dpb-radius-sm);
}

.dpb-dropdown .dropdown-item:hover,
.dpb-dropdown .dropdown-item:focus-visible {
  color: var(--dpb-blue-700);
  background: var(--dpb-blue-50);
}

.dpb-lang {
  display: inline-flex;
  gap: 0.15rem;
  padding: 0.2rem;
  background: var(--dpb-gray-100);
  border-radius: var(--dpb-radius-pill);
}

.dpb-lang__link {
  padding: 0.3rem 0.7rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--dpb-muted);
  text-decoration: none;
  border-radius: var(--dpb-radius-pill);
  transition: color var(--dpb-transition), background-color var(--dpb-transition);
}

.dpb-lang__link:hover { color: var(--dpb-blue-700); }

.dpb-lang__link:focus-visible {
  outline: 3px solid var(--dpb-blue-500);
  outline-offset: 2px;
}

.dpb-lang__link.is-active {
  color: var(--dpb-blue-700);
  background: var(--dpb-white);
  box-shadow: var(--dpb-shadow-sm);
}

@media (max-width: 61.999rem) {
  .dpb-navbar { padding: 0.5rem 0; }
  .dpb-navbar > .container { min-height: 3.75rem; }
  .dpb-navbar__panel {
    margin-top: 0.5rem;
    padding: 0.75rem 0 1rem;
    border-top: 1px solid var(--dpb-border);
  }
  .dpb-nav { gap: 0.125rem; }
  .dpb-nav__lang { padding: 0.75rem 0.9rem 0; }
  .dpb-dropdown {
    padding: 0 0 0 0.75rem;
    background: transparent;
    border: 0;
    box-shadow: none;
  }
}

@media (min-width: 62rem) {
  .dpb-navbar > .container { height: var(--dpb-header-height); }
  .dpb-nav { align-items: center; gap: 0.25rem; }
  .dpb-navbar .nav-link { width: auto; }
  .dpb-dropdown { margin-top: 0.25rem; }
  .dpb-nav__lang {
    margin-left: 0.75rem;
    padding-left: 1rem;
    border-left: 1px solid var(--dpb-border);
  }
}

/* Sections and headings */

.dpb-section { padding: var(--dpb-section-space) 0; }

.dpb-section--surface { background: var(--dpb-surface); }

.dpb-section__head {
  max-width: 46rem;
  margin: 0 auto var(--dpb-section-head-space);
}

.dpb-section__title { margin-bottom: 1rem; }

.dpb-section__head .dpb-lead { margin-bottom: 0; }

/* Hero */

.dpb-hero { padding: 3rem 0 4rem; }

@media (min-width: 62rem) {
  .dpb-hero { padding: 5.5rem 0 6.5rem; }
}

.dpb-hero__title { margin-bottom: 1.25rem; }

.dpb-hero .dpb-lead { margin-bottom: 0; }

.dpb-hero__actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

@media (min-width: 36rem) {
  .dpb-hero__actions {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2.5rem;
  }
}

.dpb-hero .dpb-screenshot-frame {
  max-width: 36rem;
  margin: 0 auto;
}

@media (min-width: 62rem) {
  .dpb-hero .dpb-screenshot-frame { margin: 0 0 0 auto; }
}

/* Cards */

.dpb-card { padding: var(--dpb-card-padding); }

.dpb-card__icon {
  display: flex;
  margin-bottom: 1.25rem;
}

.dpb-card--product {
  display: flex;
  flex-direction: column;
}

.dpb-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.dpb-card--product .dpb-card__text { flex: 1 1 auto; }

.dpb-card__link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.4rem;
  margin-top: 1.5rem;
  font-weight: 600;
  color: var(--dpb-blue-700);
  text-decoration: none;
}

.dpb-card__link svg { transition: transform var(--dpb-transition); }

.dpb-card__link:hover { text-decoration: underline; }

.dpb-card__link:hover svg { transform: translateX(3px); }

/* Workflow */

.dpb-flow {
  max-width: 60rem;
  margin: 0 auto;
}

@media (prefers-reduced-motion: reduce) {
  .dpb-card__link svg, .dpb-navbar .nav-link, .dpb-lang__link { transition: none; }
}

.container {
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 576px) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 768px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

@media (min-width: 1200px) {
  .container {
    padding-left: 3rem;
    padding-right: 3rem;
  }
}

@media (min-width: 1400px) {
  .container {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

/* 14. FAQ (details/summary) */

.dpb-faq { display: grid; gap: 1rem; }

.dpb-faq__item {
  background: var(--dpb-white);
  border: 1px solid var(--dpb-border);
  border-radius: var(--dpb-radius-md);
  box-shadow: var(--dpb-shadow-sm);
  transition: box-shadow var(--dpb-transition), border-color var(--dpb-transition);
}

.dpb-faq__item[open] {
  border-color: var(--dpb-blue-500);
  box-shadow: var(--dpb-shadow-md);
}

.dpb-faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.5rem;
  font-weight: 600;
  color: var(--dpb-ink);
  cursor: pointer;
  list-style: none;
  border-radius: var(--dpb-radius-md);
}

.dpb-faq__question::-webkit-details-marker { display: none; }

.dpb-faq__question::after {
  content: "+";
  flex-shrink: 0;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--dpb-blue-600);
}

.dpb-faq__item[open] > .dpb-faq__question::after { content: "\2212"; }

.dpb-faq__question:focus-visible {
  outline: 3px solid var(--dpb-blue-500);
  outline-offset: 3px;
}

.dpb-faq__answer {
  margin: 0;
  padding: 0 1.5rem 1.25rem;
  line-height: 1.65;
  color: var(--dpb-muted);
}

@media (prefers-reduced-motion: reduce) {
  .dpb-faq__item { transition: none; }
}

/* 15. Language selector: unavailable translations */

.dpb-lang__link.is-disabled,
.dpb-lang__link.is-disabled:hover {
  color: var(--dpb-muted);
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

span.dpb-lang__link { display: inline-block; }

/* 16. Header: compact spacing on laptop widths so the 6-item nav stays on one line */

@media (min-width: 62rem) and (max-width: 74.999rem) {
  .dpb-navbar .nav-link { padding: 0.5rem 0.6rem; font-size: 0.9rem; }
  .dpb-nav { gap: 0.1rem; }
  .dpb-nav__lang { margin-left: 0.4rem; padding-left: 0.6rem; }
  .dpb-navbar .navbar-brand { margin-right: 0.5rem; }
}

@media (min-width: 62rem) {
  .dpb-navbar .nav-link { white-space: nowrap; }
}

/* ==========================================================================
   17. Knowledge Center – article system (scoped; reuses design tokens)
   ========================================================================== */

/* Card preview (shared by Knowledge Center cards) */

.dpb-card__preview {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  color: var(--dpb-blue-500);
  background: var(--dpb-gradient-soft);
  border-radius: var(--dpb-radius-md);
}

.dpb-card__preview svg { opacity: 0.4; }

/* Unpublished / non-interactive card state */

.dpb-card--static:hover {
  transform: none;
  box-shadow: var(--dpb-shadow-sm);
}

.dpb-card__link.is-disabled,
.dpb-card__link.is-disabled:hover {
  color: var(--dpb-muted);
  text-decoration: none;
  cursor: default;
}

.dpb-card__link.is-disabled:hover svg { transform: none; }

/* Article wrapper */

.dpb-article {
  display: block;
  color: var(--dpb-ink);
}

/* Article hero */

.dpb-article__hero {
  padding: 2.5rem 0 3rem;
  background: var(--dpb-surface);
  border-bottom: 1px solid var(--dpb-border);
}

@media (min-width: 48rem) {
  .dpb-article__hero { padding: 4rem 0 4.5rem; }
}

.dpb-article__hero .dpb-hero__title {
  max-width: 48rem;
  font-size: clamp(2rem, 1.4rem + 2.5vw, 3rem);
}

.dpb-article__hero .dpb-lead { margin-bottom: 0; }

.dpb-article__back {
  display: inline-block;
  margin-bottom: 1.25rem;
  font-weight: 600;
  color: var(--dpb-blue-700);
  text-decoration: none;
}

.dpb-article__back:hover { text-decoration: underline; }

.dpb-article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.9375rem;
  color: var(--dpb-muted);
}

.dpb-article__byline {
  margin: 1.5rem 0 0;
  font-size: 0.9375rem;
  color: var(--dpb-muted);
}

/* Featured figure + layout */

.dpb-article__featured { padding: 2rem 0 0; }

@media (min-width: 48rem) {
  .dpb-article__featured { padding-top: 3rem; }
}

.dpb-article__layout { padding: 2.5rem 0 var(--dpb-section-space); }

/* Article body typography */

.dpb-article__body {
  max-width: 46rem;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--dpb-ink);
}

.dpb-article__body h2 {
  margin: 2.5rem 0 1rem;
  font-size: clamp(1.5rem, 1.25rem + 1vw, 1.75rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.dpb-article__body h2:first-child { margin-top: 0; }

.dpb-article__body h3 {
  margin: 1.75rem 0 0.75rem;
  font-size: 1.3125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--dpb-blue-700);
}

.dpb-article__body p,
.dpb-article__body ul,
.dpb-article__body ol {
  margin-bottom: 1rem;
  color: var(--dpb-muted);
}

.dpb-article__body ul,
.dpb-article__body ol { padding-left: 1.25rem; }

.dpb-article__body li { margin-bottom: 0.35rem; }

.dpb-article__body a {
  color: var(--dpb-blue-700);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.dpb-article__body a:hover { color: var(--dpb-blue-600); }

.dpb-article__body blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  color: var(--dpb-muted);
  background: var(--dpb-surface-tint);
  border-left: 4px solid var(--dpb-turquoise-500);
  border-radius: var(--dpb-radius-sm);
}

/* Table of contents */

.dpb-article__toc {
  padding: 1.5rem;
  background: var(--dpb-surface);
  border: 1px solid var(--dpb-border);
  border-radius: var(--dpb-radius-md);
}

@media (min-width: 62rem) {
  .dpb-article__toc {
    position: sticky;
    top: calc(var(--dpb-header-height) + 1.5rem);
  }
}

.dpb-article__aside-title {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dpb-turquoise-700);
}

.dpb-article__toc-list,
.dpb-article__toc-list ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.dpb-article__toc-list li { margin-bottom: 0.5rem; }

.dpb-article__toc-list li:last-child { margin-bottom: 0; }

.dpb-article__toc-list a {
  display: inline-block;
  padding: 0.125rem 0;
  font-weight: 500;
  color: var(--dpb-blue-700);
  text-decoration: none;
}

.dpb-article__toc-list a:hover { text-decoration: underline; }

.dpb-article__toc-list ul {
  margin-top: 0.5rem;
  padding-left: 1rem;
}

.dpb-article__toc-list ul a {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--dpb-muted);
}

/* Sources */

.dpb-article__sources {
  max-width: 46rem;
  margin-top: 3rem;
  padding: 1.5rem;
  background: var(--dpb-surface-tint);
  border-left: 4px solid var(--dpb-blue-500);
  border-radius: var(--dpb-radius-md);
}

.dpb-article__sources h2 {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.dpb-article__sources ol {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--dpb-muted);
}

.dpb-article__sources li { margin-bottom: 0.35rem; }

.dpb-article__sources a {
  color: var(--dpb-blue-700);
  overflow-wrap: anywhere;
}

/* Optional contextual product link */

.dpb-article__product {
  max-width: 46rem;
  margin-top: 2rem;
  background: var(--dpb-gradient-soft);
  border-color: var(--dpb-blue-500);
}

/* Related articles */

.dpb-article__related { padding: var(--dpb-section-space) 0; }

/* Figures */

.dpb-figure { margin: 2rem 0; }

.dpb-figure__media {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--dpb-gradient-soft);
  border: 1px solid var(--dpb-border);
  border-radius: var(--dpb-radius-md);
}

.dpb-figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dpb-figure--wide { margin: 0; }

.dpb-figure--wide .dpb-figure__media { border-radius: var(--dpb-radius-lg); }

.dpb-figure__placeholder {
  padding: 1rem;
  font-size: 0.875rem;
  text-align: center;
  color: var(--dpb-muted);
}

.dpb-figure__placeholder svg {
  display: block;
  margin: 0 auto 0.75rem;
  color: var(--dpb-blue-500);
  opacity: 0.4;
}

.dpb-figure__caption {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--dpb-muted);
}

/* 18. Software callout (component: dpb-software-callout) */

.dpb-callout {
  margin: 2.5rem 0;
  padding: 1.25rem;
  font-size: 1rem;
  line-height: 1.65;
  background: var(--dpb-surface-tint);
  border: 1px solid var(--dpb-border);
  border-radius: var(--dpb-radius-lg);
  box-shadow: var(--dpb-shadow-sm);
}

@media (min-width: 48rem) {
  .dpb-callout { padding: 2rem; }
}

.dpb-callout .dpb-callout__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 1rem;
}

.dpb-callout .dpb-callout__icon {
  width: 2.75rem;
  height: 2.75rem;
  background: var(--dpb-white);
  border-radius: var(--dpb-radius-sm);
}

.dpb-callout .dpb-callout__product {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dpb-turquoise-700);
}

.dpb-callout .dpb-callout__status { margin-left: auto; }

.dpb-callout .dpb-callout__title {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--dpb-ink);
}

.dpb-callout .dpb-callout__text {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--dpb-muted);
}

.dpb-callout .dpb-callout__list {
  display: grid;
  gap: 0.5rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.dpb-callout .dpb-callout__item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--dpb-ink);
}

.dpb-callout .dpb-callout__check {
  flex-shrink: 0;
  margin-top: 0.15rem;
  color: var(--dpb-turquoise-700);
}

.dpb-callout .dpb-callout__note {
  margin: 0 0 1.25rem;
  padding-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--dpb-muted);
  border-top: 1px solid var(--dpb-border);
}

.dpb-callout .dpb-callout__action { margin: 0; }

.dpb-callout .dpb-callout__action .dpb-btn {
  padding: 0.65rem 1.35rem;
  font-size: 0.9375rem;
  color: var(--dpb-blue-700);
  text-decoration: none;
}

.dpb-callout .dpb-callout__action .dpb-btn:hover,
.dpb-callout .dpb-callout__action .dpb-btn:focus-visible {
  color: var(--dpb-blue-700);
  text-decoration: none;
}

/* Download buttons stay hidden until a real release URL is activated via the shared download config. */

.dpb-download-btn:disabled,
[data-downloader-setup]:disabled {
  display: none;
}

/* 19. Help FAQ accordion: bold top-level category labels (not nested questions) */

.dpb-faqx__cat-btn .dpb-faqx__cat-title { font-weight: 700; }