/* =============================================
   PROBLEMI-HUB.CSS
   Pagina hub "Problemi che risolviamo"
   ============================================= */

/* -----------------------------------------------
   HERO
----------------------------------------------- */
.prb-hero {
  padding-top: calc(var(--navbar-h) + var(--sp-xl));
  padding-bottom: var(--sp-xl);
}

.prb-hero__inner {
  max-width: 700px;
  text-align: center;
  margin: 0 auto;
}

.prb-hero__title {
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.08;
  margin-bottom: var(--sp-md);
}

.prb-hero__desc {
  font-size: var(--t-md);
  color: var(--c-gray);
  line-height: 1.75;
}

/* -----------------------------------------------
   GRIGLIA CARD PROBLEMI
----------------------------------------------- */
.prb-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}

.prb-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition:
    transform .35s cubic-bezier(.22,1,.36,1),
    box-shadow .35s cubic-bezier(.22,1,.36,1),
    border-color .35s ease,
    background .35s ease;
}

.prb-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,.35) 50%, transparent 100%);
  transform: translateX(-120%);
  transition: transform .7s ease;
  pointer-events: none;
}


.prb-card__top {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-sm);
  margin-bottom: var(--sp-xs);
}

.prb-card__icon {
  font-size: 36px;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.prb-card__problem {
  font-family: var(--f-heading);
  font-size: var(--t-lg);
  font-weight: 700;
  color: var(--c-dark);
  line-height: 1.3;
}

.prb-card__desc {
  font-size: var(--t-base);
  color: var(--c-gray);
  line-height: 1.65;
  flex-grow: 1;
  margin: 0;
}

.prb-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--t-sm);
  font-weight: 700;
  color: var(--c-gray-light);
  margin-top: auto;
  padding-top: var(--sp-xs);
  transition: color var(--tr), gap var(--tr);
}

/* -----------------------------------------------
   STATISTICHE
----------------------------------------------- */
.prb-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-md);
}

.prb-stat {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
  text-align: center;
}

.prb-stat__value {
  font-family: var(--f-heading);
  font-size: var(--t-3xl);
  font-weight: 800;
  color: var(--c-orange);
  line-height: 1;
  margin-bottom: var(--sp-sm);
}

.prb-stat__label {
  font-size: var(--t-sm);
  color: var(--c-gray);
  line-height: 1.55;
}

/* -----------------------------------------------
   STEP COME LAVORIAMO
----------------------------------------------- */
.prb-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
  position: relative;
}

.prb-steps::before {
  content: '';
  position: absolute;
  top: 18px;
  left: calc(16.67% + 18px);
  right: calc(16.67% + 18px);
  height: 1px;
  background: var(--c-border);
  z-index: 0;
}

.prb-step {
  position: relative;
  z-index: 1;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
}

.prb-step__num {
  width: 36px;
  height: 36px;
  background: var(--c-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-heading);
  font-size: var(--t-base);
  font-weight: 800;
  color: var(--c-white);
  margin-bottom: var(--sp-md);
}

.prb-step__title {
  font-size: var(--t-xl);
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: var(--sp-xs);
}

.prb-step__desc {
  font-size: var(--t-base);
  color: var(--c-gray);
  line-height: 1.65;
  margin: 0;
}

/* -----------------------------------------------
   SEZIONE MARKETING
----------------------------------------------- */
.prb-marketing {
  max-width: 780px;
  margin: 0 auto;
}

.prb-marketing__intro {
  font-size: var(--t-md);
  color: var(--c-gray);
  line-height: 1.75;
  margin-bottom: var(--sp-lg);
}

.prb-marketing__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px var(--sp-lg);
  margin-bottom: var(--sp-xl);
  list-style: none;
  padding: 0;
}

.prb-marketing__list li {
  font-size: var(--t-base);
  color: var(--c-gray);
  padding-left: 22px;
  position: relative;
  line-height: 1.5;
}

.prb-marketing__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--c-orange);
  font-size: 12px;
  top: 2px;
}

/* -----------------------------------------------
   RESPONSIVE
----------------------------------------------- */
@media (max-width: 1024px) {
  .prb-cards { grid-template-columns: repeat(2, 1fr); }
  .prb-stats { grid-template-columns: repeat(2, 1fr); }
  .prb-steps { grid-template-columns: 1fr; }
  .prb-steps::before { display: none; }
  .prb-marketing__list { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .prb-cards { grid-template-columns: 1fr; }
  .prb-stats { grid-template-columns: 1fr; }
}