:root {
  --color-primary: #07d31a;
  --color-dark-green: #008040;
  --color-black: #000000;
  --color-white: #ffffff;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--color-white);
  color: #1b1b1b;
}

.glass-nav {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.gradient-button {
  background: linear-gradient(135deg, var(--color-dark-green) 0%, var(--color-primary) 100%);
  transition: all 0.3s ease;
}

.fade-in-section {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s, transform 0.7s;
}

.fade-in-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.label-span {
  font-size: 0.7rem;
  color: white;
  opacity: 0.55;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: opacity 0.3s, color 0.3s;
}

.label-span.active {
  opacity: 1;
  color: var(--color-primary);
}

/* FAQ accordion */
details.faq-item {
  border-bottom: 1px solid #e4e4e4;
}

details.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.25rem 0;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: #1b1b1b;
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

details.faq-item summary::after {
  content: '+';
  font-size: 1.75rem;
  font-weight: 300;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform 0.3s;
  line-height: 1;
}

details.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1rem 1.5rem 0;
  color: #555;
  font-size: 0.95rem;
  line-height: 1.8;
}

/* Mobile menu */
#mobile-menu {
  display: none;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem 2rem 1.75rem;
  background: rgba(255, 255, 255, 0.98);
  border-top: 1px solid #eeeeee;
}

#mobile-menu.open {
  display: flex;
}

#mobile-menu a {
  text-decoration: none;
  color: #1b1b1b;
  font-weight: 700;
  font-size: 1rem;
}

/* ── Text phases ── */
.text-phase {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  pointer-events: none;
}

.text-phase.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.phase-heading {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: clamp(3.5rem, 10vw, 9rem);
  color: #fff;
  line-height: 0.92;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin: 1.5rem 0 0;
}

.phase-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.22em;
}

.phase-sub {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

/* Energy ring pulse */
@keyframes ring-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.4;
  }

  50% {
    transform: scale(1.06);
    opacity: 0.8;
  }
}

#energy-ring.pulsing {
  animation: ring-pulse 2.2s ease-in-out infinite;
}

@keyframes panMove {
  0% {
    background-position: left center;
    transform: scale(1.05);
  }

  100% {
    background-position: right center;
    transform: scale(1.15);
  }
}

@media (max-width: 480px) {
  .label-span {
    display: none;
  }

  .phase-heading {
    font-size: clamp(2.8rem, 14vw, 5rem);
  }
}