/* =====================================================================
   Problem Cards — 3-variant risk/failure-mode card section.
   Variants:
     A — Editorial Authority (light, asymmetric 40/60, sticky header)
     B — Confident Dark (charcoal w/ glass tiles, gradient mark)
     C — Stat-Lead Proof (3-col bento, oversized animated numbers)

   All selectors scoped under .dl-redesign .problem-cards to beat the
   global .dl-redesign h2/h3/p (specificity 0,1,1) rules in dl-redesign.css.
   --module-* properties cascade from inline style on root with brand-token
   fallbacks via var(--module-x, var(--color-x)).
   Glass tiles on Variant B carry .dl-glass for the global @supports
   not (backdrop-filter) opaque fallback in dl-redesign.css.
   ===================================================================== */

.dl-redesign .problem-cards {
  position: relative;
  padding: var(--space-16) var(--space-6);
  border-radius: var(--radius-2xl);
  /* overflow:clip (not hidden) — preserves position:sticky on the
     Variant A header. overflow:hidden creates a scroll-container that
     silently disables sticky on descendants. */
  overflow: clip;

  --pc-primary: var(--module-primary, var(--color-primary));
  --pc-accent:  var(--module-accent,  var(--color-accent-cta));
  --pc-surface: var(--module-surface, var(--color-surface));
  --pc-cta:     var(--module-cta,     var(--color-primary));
}

/* ============================================================
   Shared header copy (pill, headline, mark, intro)
   ============================================================ */
.dl-redesign .problem-cards__pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: color-mix(in srgb, var(--pc-primary) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--pc-primary) 18%, transparent);
  color: var(--color-primary-dark);
  border-radius: var(--radius-full);
  padding: 5px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.dl-redesign .problem-cards__pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pc-primary);
}

.dl-redesign .problem-cards__headline h1,
.dl-redesign .problem-cards__headline h2,
.dl-redesign .problem-cards__headline h3 {
  font-size: clamp(2rem, 4.4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--color-dark);
  margin: 0 0 var(--space-4);
}

/* <mark> = animated teal underline draw on light variants */
.dl-redesign .problem-cards__headline mark {
  background: transparent;
  color: inherit;
  position: relative;
  padding-bottom: 2px;
}
.dl-redesign .problem-cards__headline mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0.18em;
  background: var(--pc-primary);
  border-radius: 2px;
  transform-origin: left center;
  animation: pc-underline-draw 800ms cubic-bezier(0.65, 0, 0.35, 1) 600ms backwards;
}
@keyframes pc-underline-draw {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

.dl-redesign .problem-cards__intro,
.dl-redesign .problem-cards__intro p {
  font-size: 1.0625rem;
  color: var(--color-medium);
  line-height: 1.55;
  margin: 0 0 var(--space-2);
  max-width: 540px;
}

/* ============================================================
   Shared card content (icon, h3, body, inline link)
   ============================================================ */
.dl-redesign .problem-cards__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.dl-redesign .problem-cards__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--pc-primary) 10%, transparent);
  color: var(--pc-primary);
  margin-bottom: var(--space-1);
  flex-shrink: 0;
}
.dl-redesign .problem-cards__icon svg {
  width: 24px;
  height: 24px;
}

.dl-redesign .problem-cards__card-headline,
.dl-redesign .problem-cards .problem-cards__card-headline {
  font-size: 1.1875rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--color-dark);
  margin: 0;
}

.dl-redesign .problem-cards__body,
.dl-redesign .problem-cards__body p {
  font-size: 0.9375rem;
  color: var(--color-medium);
  line-height: 1.55;
  margin: 0;
}
.dl-redesign .problem-cards__body p + p {
  margin-top: var(--space-2);
}

.dl-redesign .problem-cards__card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: auto;
  padding-top: var(--space-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--pc-primary);
  text-decoration: none;
  border-bottom: 1.5px solid transparent;
  align-self: flex-start;
  transition: color 150ms ease-out, border-color 150ms ease-out;
}
.dl-redesign .problem-cards__card-link svg {
  width: 14px;
  height: 14px;
  transition: transform 200ms ease-out;
}
.dl-redesign .problem-cards__card-link:hover {
  color: var(--color-primary-dark);
  border-bottom-color: currentColor;
}
.dl-redesign .problem-cards__card-link:hover svg {
  transform: translateX(3px);
}

/* ============================================================
   VARIANT A — Editorial Authority
   40/60 grid with sticky left header + stacked card list.
   ============================================================ */
.dl-redesign .problem-cards[data-variant="a"] {
  background: #ffffff;
}
.dl-redesign .problem-cards[data-variant="a"] .problem-cards__inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-10);
  align-items: start;
  max-width: 1180px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.dl-redesign .problem-cards[data-variant="a"] .problem-cards__header {
  position: sticky;
  top: var(--space-8);
  align-self: start;
}
.dl-redesign .problem-cards[data-variant="a"] .problem-cards__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.dl-redesign .problem-cards[data-variant="a"] .problem-cards__card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform 200ms ease-out, box-shadow 200ms ease-out, border-color 200ms ease-out;
}
.dl-redesign .problem-cards[data-variant="a"] .problem-cards__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--pc-primary);
  border-top-left-radius: var(--radius-lg);
  border-bottom-left-radius: var(--radius-lg);
  transition: width 220ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.dl-redesign .problem-cards[data-variant="a"] .problem-cards__card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: color-mix(in srgb, var(--pc-primary) 30%, var(--color-border));
}
.dl-redesign .problem-cards[data-variant="a"] .problem-cards__card:hover::before {
  width: 4px;
}

/* Subtle SVG noise overlay (Variant A) */
.dl-redesign .problem-cards__noise {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  z-index: 0;
}

/* ============================================================
   VARIANT B — Confident Dark
   Charcoal section, full-width header, 3-col glass-tile grid.
   ============================================================ */
.dl-redesign .problem-cards[data-variant="b"] {
  background: #1a1d24;
  color: #ffffff;
  isolation: isolate;
}
/* Soft teal corner glow */
.dl-redesign .problem-cards[data-variant="b"]::after {
  content: "";
  position: absolute;
  top: -180px;
  right: -180px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, color-mix(in srgb, var(--pc-primary) 22%, transparent) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  max-width: 1180px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__header {
  max-width: 720px;
}
/* Glass kicker pill on dark */
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__pill {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: #ffffff;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
/* Headline + mark on dark — gradient text-fill replaces underline-draw */
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__headline h1,
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__headline h2,
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__headline h3 {
  color: #ffffff;
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__headline mark {
  background: linear-gradient(135deg, var(--pc-primary) 0%, var(--pc-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding-bottom: 0;
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__headline mark::after {
  display: none;
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__intro,
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__intro p {
  color: rgba(255,255,255,0.65);
}
/* Glass card grid */
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform 200ms ease-out, background 200ms ease-out, border-color 200ms ease-out;
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__card:hover {
  transform: translateY(-3px);
  background: rgba(255,255,255,0.08);
  border-color: color-mix(in srgb, var(--pc-primary) 40%, rgba(255,255,255,0.08));
}
/* Icon on dark — primary tint over dark glass */
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__icon {
  background: color-mix(in srgb, var(--pc-primary) 18%, transparent);
  color: var(--pc-primary);
  border: 1px solid color-mix(in srgb, var(--pc-primary) 30%, transparent);
}
/* Card text on dark */
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__card-headline {
  color: #ffffff;
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__body,
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__body p {
  color: rgba(255,255,255,0.65);
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__card-link {
  color: var(--pc-primary);
}
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__card-link:hover {
  color: #ffffff;
}
/* Dotted-grid texture override on Variant B */
.dl-redesign .problem-cards[data-variant="b"] .problem-cards__noise {
  opacity: 1;
  mix-blend-mode: normal;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.06) 1px, transparent 0);
  background-size: 24px 24px;
  z-index: 0;
}

/* ============================================================
   VARIANT C — Stat-Lead Proof
   Off-white section, full-width header, 3-col bento with
   oversized animated stat at top of each card.
   ============================================================ */
.dl-redesign .problem-cards[data-variant="c"] {
  background:
    radial-gradient(ellipse at 0% 100%, color-mix(in srgb, var(--pc-primary) 8%, transparent) 0%, transparent 55%),
    #FAFAF7;
}
.dl-redesign .problem-cards[data-variant="c"] .problem-cards__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  max-width: 1180px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.dl-redesign .problem-cards[data-variant="c"] .problem-cards__header {
  max-width: 720px;
}
.dl-redesign .problem-cards[data-variant="c"] .problem-cards__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.dl-redesign .problem-cards[data-variant="c"] .problem-cards__card {
  position: relative;
  background: var(--pc-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  overflow: hidden;
  transition: transform 220ms ease-out, box-shadow 220ms ease-out;
}
.dl-redesign .problem-cards[data-variant="c"] .problem-cards__card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 50%;
  background: radial-gradient(ellipse at top right, color-mix(in srgb, var(--pc-primary) 6%, transparent) 0%, transparent 70%);
  pointer-events: none;
}
.dl-redesign .problem-cards[data-variant="c"] .problem-cards__card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
/* Stat block */
.dl-redesign .problem-cards__stat {
  margin-bottom: var(--space-2);
}
.dl-redesign .problem-cards__stat-numwrap {
  display: inline-flex;
  align-items: baseline;
  gap: 1px;
  color: var(--pc-primary);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.95;
  font-size: clamp(3rem, 5vw, 4.5rem);
}
.dl-redesign .problem-cards__counter {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}
.dl-redesign .problem-cards__stat-prefix {
  font-size: 0.65em;
  color: var(--pc-primary);
}
.dl-redesign .problem-cards__stat-suffix {
  font-size: 0.55em;
  color: var(--pc-primary);
}
.dl-redesign .problem-cards__stat-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-medium);
  line-height: 1.4;
  margin: var(--space-2) 0 0;
  max-width: 240px;
}

/* ============================================================
   Footer CTA — magnetic-feel button
   ============================================================ */
.dl-redesign .problem-cards__footer {
  display: flex;
  justify-content: center;
  margin-top: var(--space-10);
}
.dl-redesign .problem-cards .dl-btn.problem-cards__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--pc-cta);
  color: #ffffff;
  padding: 14px 26px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  text-decoration: none;
  box-shadow: 0 8px 16px -8px color-mix(in srgb, var(--pc-cta) 45%, transparent);
  transition: transform 200ms cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 200ms ease-out,
              background 150ms ease-out;
}
.dl-redesign .problem-cards .dl-btn.problem-cards__cta:hover {
  background: color-mix(in srgb, var(--pc-cta) 82%, black);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 16px 32px -12px color-mix(in srgb, var(--pc-cta) 60%, transparent);
}
.dl-redesign .problem-cards__cta-arrow {
  width: 16px;
  height: 16px;
  transition: transform 200ms ease-out;
}
.dl-redesign .problem-cards .dl-btn.problem-cards__cta:hover .problem-cards__cta-arrow {
  transform: translateX(3px);
}
/* Variant B footer CTA — white pill on dark */
.dl-redesign .problem-cards[data-variant="b"] .dl-btn.problem-cards__cta {
  background: #ffffff;
  color: var(--color-dark);
  box-shadow: 0 8px 20px -8px rgba(255,255,255,0.25);
}
.dl-redesign .problem-cards[data-variant="b"] .dl-btn.problem-cards__cta:hover {
  background: #ffffff;
  color: var(--color-dark);
  box-shadow: 0 16px 36px -12px rgba(255,255,255,0.35);
}

/* ============================================================
   Page-load stagger animation on cards (CSS-only, fires on
   DOMContentLoaded — not IntersectionObserver-driven; subtle).
   ============================================================ */
@keyframes pc-rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.dl-redesign .problem-cards__card {
  animation: pc-rise 600ms cubic-bezier(0.22, 1, 0.36, 1) backwards;
}
.dl-redesign .problem-cards__card:nth-child(1) { animation-delay: 100ms; }
.dl-redesign .problem-cards__card:nth-child(2) { animation-delay: 180ms; }
.dl-redesign .problem-cards__card:nth-child(3) { animation-delay: 260ms; }
.dl-redesign .problem-cards__card:nth-child(4) { animation-delay: 340ms; }
.dl-redesign .problem-cards__card:nth-child(5) { animation-delay: 420ms; }
.dl-redesign .problem-cards__card:nth-child(6) { animation-delay: 500ms; }

/* ============================================================
   Reduced-motion (self-contained; also covered globally)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .dl-redesign .problem-cards__card,
  .dl-redesign .problem-cards[data-variant="a"] .problem-cards__card::before {
    animation: none;
    transition: none;
  }
  .dl-redesign .problem-cards__headline mark::after {
    animation: none;
    transform: scaleX(1);
  }
  .dl-redesign .problem-cards__card-link svg,
  .dl-redesign .problem-cards__cta-arrow {
    transition: none;
  }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .dl-redesign .problem-cards {
    padding: var(--space-10) var(--space-4);
  }
  .dl-redesign .problem-cards[data-variant="a"] .problem-cards__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .dl-redesign .problem-cards[data-variant="a"] .problem-cards__header {
    position: static;
  }
  .dl-redesign .problem-cards[data-variant="b"] .problem-cards__list,
  .dl-redesign .problem-cards[data-variant="c"] .problem-cards__list {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .dl-redesign .problem-cards__headline h1,
  .dl-redesign .problem-cards__headline h2,
  .dl-redesign .problem-cards__headline h3 {
    font-size: 1.75rem;
  }
  .dl-redesign .problem-cards[data-variant="b"] .problem-cards__list,
  .dl-redesign .problem-cards[data-variant="c"] .problem-cards__list {
    grid-template-columns: 1fr;
  }
  .dl-redesign .problem-cards__card {
    padding: var(--space-4);
  }
  .dl-redesign .problem-cards__stat-numwrap {
    font-size: clamp(2.5rem, 9vw, 3.5rem);
  }
}

/* ============================================================
   color-mix() fallback for older browsers
   ============================================================ */
@supports not (color: color-mix(in srgb, red, blue)) {
  .dl-redesign .problem-cards__pill {
    background: var(--color-primary-light);
    border-color: rgba(70,154,173,0.18);
  }
  .dl-redesign .problem-cards__icon {
    background: var(--color-primary-light);
  }
  .dl-redesign .problem-cards[data-variant="a"] .problem-cards__card:hover {
    border-color: rgba(70,154,173,0.4);
  }
  .dl-redesign .problem-cards[data-variant="b"]::after {
    background: radial-gradient(circle, rgba(70,154,173,0.22) 0%, transparent 70%);
  }
  .dl-redesign .problem-cards[data-variant="b"] .problem-cards__pill {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.12);
  }
  .dl-redesign .problem-cards[data-variant="b"] .problem-cards__headline mark {
    background: var(--color-primary);
    color: #ffffff;
    -webkit-background-clip: initial;
    background-clip: initial;
    padding: 0 4px;
    border-radius: 2px;
  }
  .dl-redesign .problem-cards[data-variant="b"] .problem-cards__icon {
    background: rgba(70,154,173,0.18);
    border-color: rgba(70,154,173,0.3);
  }
  .dl-redesign .problem-cards[data-variant="b"] .problem-cards__card:hover {
    border-color: rgba(70,154,173,0.4);
  }
  .dl-redesign .problem-cards[data-variant="c"] {
    background: linear-gradient(160deg, #FAFAF7 60%, var(--color-primary-light) 100%);
  }
  .dl-redesign .problem-cards[data-variant="c"] .problem-cards__card::before {
    background: radial-gradient(ellipse at top right, rgba(70,154,173,0.06) 0%, transparent 70%);
  }
  .dl-redesign .problem-cards .dl-btn.problem-cards__cta {
    box-shadow: 0 8px 16px -8px rgba(70,154,173,0.45);
  }
  .dl-redesign .problem-cards .dl-btn.problem-cards__cta:hover {
    /* color-mix() unavailable: keep editor-chosen --pc-cta unchanged
       rather than reverting to brand teal (which would override a
       custom CTA color the editor picked). Only the shadow intensifies. */
    background: var(--pc-cta);
    box-shadow: 0 16px 32px -12px rgba(70,154,173,0.55);
  }
}

/* ============================================================
   Variant B — backdrop-filter fallback (dark-opaque cards/pill)
   The global @supports not (backdrop-filter) rule in dl-redesign.css
   forces .dl-glass elements to white at 0.95 opacity — that produces
   white cards on the #1a1d24 charcoal section (jarring break). This
   block restores a dark-opaque substitute scoped to Variant B only.
   ============================================================ */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .dl-redesign .problem-cards[data-variant="b"] .problem-cards__card.dl-glass {
    background: #2d3040;
    border-color: rgba(255,255,255,0.10);
  }
  .dl-redesign .problem-cards[data-variant="b"] .problem-cards__pill.dl-glass {
    background: rgba(255,255,255,0.10);
    border-color: rgba(255,255,255,0.16);
  }
}