/* ---------------------------------------------
   DiPStrategy -- General Problems Section
   style/problems.css
   --------------------------------------------- */

.accordion-item {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.55s ease, transform 0.55s ease,
              box-shadow 0.3s, background 0.3s;
  border: 1px solid rgba(9,53,100,0.15);
  border-radius: 8px;
  margin-bottom: 10px;
  background: rgba(255,255,255,0.82);
  overflow: hidden;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.accordion-item.revealed {
  opacity: 1;
  transform: translateY(0);
}

.accordion-item.revealed.active {
  background: var(--item-color);
  box-shadow: 0 4px 28px rgba(9,53,100,0.1);
}

.problems-section {
  position: relative;
  background-color: #E8357A;
  padding: 96px 56px 0;
  overflow: hidden;
}

/* Navy bar di bagian bawah */
.problems-section::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 170px;
  background: #093564;
  z-index: 1;
}

.problems-inner {
  position: relative;
  z-index: 3;
  max-width: 1300px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 80px;
  align-items: start;
  padding-bottom: 50px;
}

.problems-pattern {
  position: absolute; inset: 0;
  background-image: url('../assets/pattern-01.png');
  background-repeat: repeat; background-size: auto;
  opacity: 0.2; z-index: 2;
  pointer-events: none;
}

/* --- LEFT --- */
.problems-left { position: sticky; top: 20px; }

.problems-label {
  display: flex; align-items: center; gap: 8px;
  font-family: 'Barlow', sans-serif; font-weight: 500; font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.7); margin-bottom: 20px;
}

.problems-star { width: 18px; height: 18px; animation: spin 12s linear infinite; stroke: rgba(255,255,255,0.7); }

.problems-headline {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px, 3.2vw, 44px);
  font-weight: 200; line-height: 1.2; color: #fff;
}

.problems-headline strong { font-weight: 900; }

/* --- ACCORDION --- */
.problems-right { display: flex; flex-direction: column; gap: 4px; }

.accordion-item {
  background: var(--item-color, #fff);
  border-radius: 4px;
  overflow: hidden;
  transition: box-shadow 0.25s;
}

.accordion-item.active {
  box-shadow: 0 4px 24px rgba(9,53,100,0.12);
}

.accordion-trigger {
  width: 100%; display: flex; align-items: center;
  justify-content: space-between; padding: 20px 24px;
  background: transparent; border: none; cursor: pointer;
  text-align: left; gap: 16px;
}

.accordion-title {
  font-family: 'Barlow', sans-serif; font-weight: 700; font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--item-text, #093564);
  transition: color 0.2s;
  margin: 0; padding: 0;
}

.accordion-icon {
  flex-shrink: 0; width: 24px; height: 24px;
  color: var(--item-text, #093564); position: relative;
}

.accordion-icon svg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  transition: opacity 0.25s;
}

.icon-minus { opacity: 0; }
.icon-plus  { opacity: 1; }

.accordion-item.active .icon-minus { opacity: 1; }
.accordion-item.active .icon-plus  { opacity: 0; }

.accordion-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.accordion-item.active .accordion-body { max-height: 500px; }

.accordion-content {
  display: grid; grid-template-columns: 1fr auto;
  gap: 32px; padding: 0 24px 28px; align-items: start;
  background: var(--item-color);
}

.accordion-sub-headline {
  font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 15px;
  color: var(--item-text, #093564); margin-bottom: 12px; line-height: 1.4;
  margin-top: 0;
}

.accordion-text {
  font-family: 'Barlow', sans-serif; font-weight: 300; font-size: 13px;
  line-height: 1.7; color: var(--item-text, #444);
  opacity: 0.8; margin-bottom: 12px;
}

.accordion-cta-text {
  font-family: 'Barlow', sans-serif; font-weight: 500; font-size: 13px;
  line-height: 1.6; color: var(--item-text, #093564);
}

.accordion-subnav {
  display: flex; flex-direction: column; gap: 0;
  min-width: 160px;
  border-left: 1px solid rgba(255,255,255,0.35);
  padding-left: 20px; flex-shrink: 0;
}

.subnav-item {
  font-family: 'Barlow', sans-serif; font-weight: 400; font-size: 12px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--item-text, #093564);
  opacity: 0.55;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  transition: opacity 0.2s;
}

.subnav-item:last-child { border-bottom: none; }
.subnav-item.active, .subnav-item:hover { opacity: 1; font-weight: 600; }

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
  .problems-section  { padding: 64px 24px; }
  .problems-inner    { grid-template-columns: 1fr; gap: 40px; }
  .problems-left     { position: static; }
  .accordion-content { grid-template-columns: 1fr; }
  .accordion-subnav  {
    border-left: none; border-top: 1px solid rgba(9,53,100,0.1);
    padding-left: 0; padding-top: 16px;
    flex-direction: row; flex-wrap: wrap; gap: 8px;
  }
}