/* FN SOLUTIONS — css/booster-about.css
   About/explainer section for network-booster.html */

.about-booster {
  background: var(--bg-page);
}

.about-booster-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

/* Visual card on the left */
.booster-visual {
  background: var(--bg-section-blue);
  border-radius: var(--r-2xl);
  padding: 36px;
  border: 1px solid var(--border-brand);
  position: relative;
  overflow: hidden;
}

.booster-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 30%, rgba(37, 99, 235, .1), transparent 60%);
}

.booster-diagram {
  position: relative;
  z-index: 1;
}

.bd-box {
  background: var(--white);
  border: 1.5px solid var(--border-brand);
  border-radius: var(--r-lg);
  padding: 14px 16px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  transition: all var(--t-slow);
}

.bd-box:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-brand-strong);
}

.bd-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r-md);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bd-icon svg {
  width: 16px;
  height: 16px;
  color: var(--accent-primary);
}

.bd-label {
  font-size: .82rem;
  font-weight: 700;
  color: var(--text-primary);
}

.bd-sub {
  font-size: .68rem;
  color: var(--text-muted);
}

.bd-arrow {
  text-align: center;
  margin: 4px 0 4px 24px;
  color: var(--brand-300);
  font-size: .72rem;
  letter-spacing: .05em;
}

.bd-strength {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 8px;
}

.bd-bar {
  height: 4px;
  border-radius: 2px;
  background: var(--border-light);
  overflow: hidden;
  flex: 1;
}

.bd-bar-fill {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(to right, var(--brand-600), var(--brand-300));
}

.bd-bar-label {
  font-size: .6rem;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 40px;
  text-align: right;
}

/* Benefit list on the right */
.bp-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.bp-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.bp-num {
  width: 32px;
  height: 32px;
  border-radius: var(--r-md);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 800;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.bp-item h4 {
  font-size: .88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.bp-item p {
  font-size: .78rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

@media(max-width:900px) {
  .about-booster-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}