/* ==========================================================================
   Cards — unified card system. Variants for service, problem, stat, comparison.
   ========================================================================== */

.card-wfs {
  position: relative;
  background: var(--wfs-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--r-4);
  padding: var(--s-7);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  transition: border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
}
.card-wfs:hover {
  border-color: var(--c-line-strong);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}

.card-wfs__icon {
  width: 44px; height: 44px;
  border-radius: var(--r-2);
  background: var(--wfs-cream-100);
  color: var(--c-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 44px;
}
.card-wfs__icon svg { width: 22px; height: 22px; }

.card-wfs__title {
  font-family: var(--font-display);
  font-size: var(--fs-h5);
  font-weight: var(--fw-medium);
  line-height: var(--lh-snug);
  color: var(--c-fg);
  letter-spacing: var(--tracking-snug);
  margin: 0;
}
.card-wfs__body { color: var(--c-fg-soft); font-size: var(--fs-16); line-height: var(--lh-relaxed); margin: 0; text-wrap: pretty; }
.card-wfs__footer { margin-top: auto; padding-top: var(--s-3); }

.card-wfs--linked {
  text-decoration: none;
  color: inherit;
}
.card-wfs--linked:hover { color: inherit; text-decoration: none; }

/* Service card — three-column row */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-6);
}
.card-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 960px) {
  .card-grid, .card-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .card-grid, .card-grid--2, .card-grid--4 { grid-template-columns: 1fr; }
}

/* Problem card — pain-intent variant, ledger-style */
.problem-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--s-5);
  padding: var(--s-5) var(--s-6);
  background: var(--wfs-paper);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--r-3);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--dur-fast), background var(--dur-fast), transform var(--dur-fast);
}
.problem-card:hover {
  background: var(--wfs-cream-50);
  border-color: var(--c-line-strong);
  border-left-color: var(--c-accent);
  text-decoration: none;
  color: inherit;
}
.problem-card__num {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  color: var(--c-fg-muted);
  font-variant-numeric: tabular-nums;
}
.problem-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: var(--fw-medium);
  margin: 0 0 4px;
  line-height: var(--lh-snug);
  letter-spacing: -0.01em;
}
.problem-card__desc { font-size: var(--fs-14); color: var(--c-fg-soft); margin: 0; line-height: var(--lh-normal); }
.problem-card__arrow {
  color: var(--c-fg-muted);
  font-family: var(--font-sans);
  font-size: 22px;
  transition: color var(--dur-fast), transform var(--dur-fast);
}
.problem-card:hover .problem-card__arrow { color: var(--c-accent); transform: translateX(4px); }
.problem-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-3);
}
@media (max-width: 720px) {
  .problem-card-grid { grid-template-columns: 1fr; }
}

/* Service tile — bigger, featured */
.service-tile {
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
  padding: var(--s-8);
  background: var(--wfs-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--r-4);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur-base), box-shadow var(--dur-base), transform var(--dur-base);
}
.service-tile::before {
  content: "";
  position: absolute;
  inset: -50% -50% auto auto;
  width: 60%; aspect-ratio: 1;
  background: radial-gradient(circle, var(--wfs-cream-100), transparent 65%);
  z-index: 0;
  transition: transform var(--dur-slow) var(--ease-out);
}
.service-tile > * { position: relative; z-index: 1; }
.service-tile:hover {
  border-color: var(--c-fg);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-2);
}
.service-tile:hover::before { transform: scale(1.4); }

.service-tile__category {
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--c-accent);
}
.service-tile__title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-tight);
  color: var(--c-fg);
  margin: 0;
  line-height: var(--lh-tight);
}
.service-tile__desc {
  color: var(--c-fg-soft);
  font-size: var(--fs-16);
  line-height: var(--lh-relaxed);
  margin: 0;
  text-wrap: pretty;
}
.service-tile__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--c-line);
  padding-top: var(--s-5);
}
.service-tile__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-15);
  color: var(--c-fg);
}
.service-tile__list li::before {
  content: "";
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--c-accent);
  flex: 0 0 4px;
}
.service-tile__list a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast), color var(--dur-fast);
}
.service-tile__list a:hover { color: var(--c-accent); border-bottom-color: var(--c-accent); }
.service-tile__cta {
  margin-top: auto;
  padding-top: var(--s-3);
}