/* M3. O Pulso do Evento */

/* ============================================================
   M3. O PULSO DO EVENTO (dados vivos)
   ============================================================ */
.pulse-section {
  position: relative;
  padding: clamp(80px, 12vw, 140px) clamp(24px, 6vw, 80px);
  background: var(--brn-surface);
  overflow: hidden;
}

/* Grid background */
.pulse-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 70%);
}

.pulse-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
}

.pulse-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brn-blue-accent);
  text-align: center;
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s var(--ease-out);
}
.pulse-eyebrow.visible { opacity: 1; transform: translateY(0); }

.pulse-title {
  font-family: 'Instrument Sans', 'Inter', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  text-align: center;
  margin-bottom: 60px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s 0.1s var(--ease-out);
}
.pulse-title.visible { opacity: 1; transform: translateY(0); }

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

.stat-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.4s var(--ease-smooth);
  opacity: 0;
  transform: translateY(20px) scale(0.98);
}
.stat-card.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.stat-card:hover {
  border-color: rgba(91, 155, 255, 0.2);
  background: rgba(91, 155, 255, 0.03);
  transform: translateY(-2px) scale(1.01);
}

.stat-number {
  font-family: 'Instrument Sans', 'Inter', sans-serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 8px;
  animation: breathe 4s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

/* Heartbeat divider */
.heartbeat-line {
  position: relative;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 20px 0;
  opacity: 0;
  transition: opacity 0.8s;
}
.heartbeat-line.visible { opacity: 1; }

.heartbeat-line svg {
  width: 200px;
  height: 40px;
}
.heartbeat-path {
  fill: none;
  stroke: var(--brn-blue-accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  opacity: 0.4;
}
.heartbeat-line.visible .heartbeat-path {
  animation: drawLine 2s var(--ease-out) forwards;
}
@keyframes drawLine {
  to { stroke-dashoffset: 0; }
}

/* Social stats row */
.social-stats {
  display: flex;
  justify-content: center;
  gap: clamp(24px, 4vw, 48px);
  flex-wrap: wrap;
}
.social-stat {
  text-align: center;
  opacity: 0;
  transform: translateY(15px);
  transition: all 0.5s var(--ease-out);
}
.social-stat.visible { opacity: 1; transform: translateY(0); }

.social-stat-number {
  font-family: 'Instrument Sans', 'Inter', sans-serif;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.social-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
}
.social-stat-source {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 32px;
  opacity: 0.5;
}