/* ============================================================
   problem.css — problem card and step timeline
   ============================================================ */

#problem {
  border-top: 1px solid var(--border);
}

.problem-card {
  max-width: 780px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px;
  box-shadow: 0 0 80px rgba(239, 68, 68, 0.08), 0 0 30px rgba(239, 68, 68, 0.05);
}

.problem-card .section-label {
  margin-bottom: 20px;
}

.problem-card h2 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 28px;
}

/* Step list */
.problem-steps {
  list-style: none;
  border-left: 2px solid var(--border);
  padding-left: 24px;
  margin: 32px 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
}

.problem-step {
  position: relative;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Bullet dot on the left border */
.problem-step::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  box-shadow: 0 0 0 3px var(--surface);
}

.problem-step.red::before {
  background: var(--red);
}

.problem-step strong {
  color: var(--text);
  font-weight: 600;
}

/* Resolution paragraph */
.problem-resolution {
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
  border-top: 1px solid var(--border);
  padding-top: 24px;
}