/* Hub Qualidade de Energia + blocos de dor + animações */

.pain-dual {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.pain-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  height: 100%;
}

.pain-card--industrial {
  border-left: 5px solid var(--color-primary);
}

.pain-card--silent {
  border-left: 5px solid var(--color-accent);
}

.pain-card__tag {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.pain-card--silent .pain-card__tag { color: var(--color-accent); }

.pain-card h3 {
  font-size: 1.25rem;
  margin: 0;
}

.pain-card p,
.pain-card li {
  font-size: 0.9rem;
  color: var(--color-gray-600);
  line-height: 1.6;
}

.pain-card ul {
  margin: 0;
  padding-left: 1.2rem;
}

.pain-card__cta {
  margin-top: auto;
  padding-top: 0.5rem;
}

/* Wave animations */
.wave-demo {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.wave-demo__panel {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-align: center;
}

.wave-demo__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  margin-bottom: 0.75rem;
}

.wave-demo svg {
  width: 100%;
  height: 56px;
  display: block;
}

.wave-demo__path--clean {
  stroke: var(--color-success);
  stroke-width: 2.5;
  fill: none;
}

.wave-demo__path--dirty {
  stroke: var(--color-accent);
  stroke-width: 2.5;
  fill: none;
  animation: wave-jitter 2s ease-in-out infinite;
}

@keyframes wave-jitter {
  0%, 100% { d: path("M0,28 C20,28 20,4 40,28 S60,52 80,28 S100,4 120,28 S140,52 160,28 S180,4 200,28 S220,52 240,28 S260,4 280,28 S300,52 320,28"); }
  50% { d: path("M0,28 C20,28 20,8 40,24 S60,48 80,32 S100,12 120,28 S140,44 160,24 S180,8 200,32 S220,48 240,28 S260,12 280,28 S300,44 320,28"); }
}

/* Heat flow */
.heat-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: linear-gradient(135deg, #fff7ed, #fef2f2);
  border: 1px solid #fed7aa;
  border-radius: var(--radius-lg);
}

.heat-flow__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  min-width: 72px;
  text-align: center;
}

.heat-flow__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  animation: heat-pulse 2.5s ease-in-out infinite;
}

.heat-flow__step:nth-child(2) .heat-flow__icon { animation-delay: 0.4s; }
.heat-flow__step:nth-child(3) .heat-flow__icon { animation-delay: 0.8s; }
.heat-flow__step:nth-child(4) .heat-flow__icon { animation-delay: 1.2s; }

@keyframes heat-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(242, 101, 34, 0.35); }
  50% { box-shadow: 0 0 0 10px rgba(242, 101, 34, 0); }
}

.heat-flow__step span {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-gray-700);
  max-width: 80px;
  line-height: 1.3;
}

.heat-flow__arrow {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 1.25rem;
}

/* QE page sections */
.qe-section {
  padding: 3.5rem 0;
}

.qe-section--alt {
  background: var(--color-gray-50);
}

.qe-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.qe-market-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

.qe-stat {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-align: center;
}

.qe-stat strong {
  display: block;
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.qe-stat span {
  font-size: 0.8rem;
  color: var(--color-gray-500);
}

.reg-box {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: white;
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.reg-box h3 { color: white; margin-bottom: 0.75rem; }

.reg-box p,
.reg-box li {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  line-height: 1.6;
}

.reg-box a {
  color: var(--color-accent-light);
  font-weight: 600;
}

.reg-box ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.science-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.science-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.science-card h4 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.science-card p {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  margin: 0 0 0.75rem;
  line-height: 1.55;
}

.ref-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.ref-list li {
  font-size: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
}

.ref-list a {
  font-weight: 600;
  color: var(--color-primary);
}

.ref-list span {
  display: block;
  color: var(--color-gray-500);
  font-size: 0.78rem;
  margin-top: 0.2rem;
}

.story-card {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.story-card__head {
  padding: 1.25rem 1.5rem;
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
}

.story-card__head h3 {
  font-size: 1.1rem;
  margin: 0 0 0.25rem;
}

.story-card__head p {
  font-size: 0.8rem;
  color: var(--color-gray-500);
  margin: 0;
}

.story-card__body {
  padding: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-gray-600);
  line-height: 1.65;
}

.story-card__body blockquote {
  margin: 1rem 0 0;
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--color-accent);
  background: rgba(242, 101, 34, 0.06);
  font-style: italic;
  color: var(--color-gray-700);
}

/* Tabelas de decisão (passivo × ativo) */
.qe-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.qe-table th,
.qe-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
  vertical-align: top;
  line-height: 1.45;
}

.qe-table th {
  background: var(--color-primary);
  color: white;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.qe-table tbody tr:nth-child(even) {
  background: var(--color-gray-50);
}

.qe-table tbody tr:last-child td {
  border-bottom: none;
}

.qe-table td:first-child {
  font-weight: 500;
  color: var(--color-gray-800);
  min-width: 12rem;
}

/* Painel claro para listas longas (componentes) */
.pva-panel {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
}

.pva-panel h3 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin: 0 0 1rem;
}

.pva-panel ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--color-gray-600);
  line-height: 1.75;
  font-size: 0.9rem;
}

.pva-panel a {
  font-weight: 600;
  color: var(--color-primary);
}

@media (max-width: 900px) {
  .pain-dual,
  .wave-demo,
  .qe-grid-2,
  .qe-market-stats,
  .science-grid {
    grid-template-columns: 1fr;
  }
  .heat-flow__arrow { display: none; }
}