/* ─── CHALLENGES ─── */
.s_nexus_challenges {
  background: linear-gradient(180deg, var(--deep) 0%, #130844 100%);
  position: relative;
  padding: 100px 0;
}

.s_nexus_section_label {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 16px;
}

.s_nexus_section_title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.5px;
  color: var(--white);
  margin-bottom: 16px;
}

.s_nexus_section_sub {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: 20px;
}

.s_nexus_section_link {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  color: var(--red);
  text-decoration: none;
  font-weight: 500;
}

.s_nexus_section_link:hover {
  text-decoration: underline;
}

.s_nexus_challenges_grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 60px;
}

.s_nexus_challenge_item {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: border-color 0.3s, background 0.3s, transform 0.3s;
  cursor: default;
}

.s_nexus_challenge_item:hover {
  border-color: rgba(224,32,64,0.4);
  background: rgba(224,32,64,0.04);
  transform: translateY(-3px);
}

.s_nexus_challenge_solution {
  background: rgba(224,32,64,0.06) !important;
  border-color: rgba(224,32,64,0.25) !important;
}

.s_nexus_ch_icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(224,32,64,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.s_nexus_ch_icon .s_nexus_icon_img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  display: block;
}

.s_nexus_ch_icon_solution {
  background: rgba(224,32,64,0.2) !important;
}

.s_nexus_ch_tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 6px;
}

.s_nexus_ch_tag_white {
  color: var(--white) !important;
}

.s_nexus_ch_title {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}

.s_nexus_ch_desc {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  font-weight: 300;
}