/**
 * Roadmap section — dual-protocol tracks
 */
.page-about {
  --rm-gas: #f59e0b;
  --rm-gas-dim: rgba(245, 158, 11, 0.12);
  --rm-gas-border: rgba(245, 158, 11, 0.35);
  --rm-ai: #22d3ee;
  --rm-ai-dim: rgba(34, 211, 238, 0.12);
  --rm-ai-border: rgba(34, 211, 238, 0.35);
  --rm-violet: #8b5cf6;
  --rm-violet-dim: rgba(139, 92, 246, 0.12);
  --rm-violet-border: rgba(139, 92, 246, 0.35);
}

.page-about .rm-section {
  padding: 96px 0;
  position: relative;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.4) 50%, transparent 100%);
}

.page-about .rm-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(600px, 80%);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--proto-border-strong), transparent);
}

.page-about .rm-milestone {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px 32px;
  align-items: center;
  padding: 32px 36px;
  margin-bottom: 48px;
  border-radius: var(--proto-radius);
  border: 1px solid var(--rm-violet-border);
  background: linear-gradient(135deg, var(--rm-violet-dim), rgba(99, 102, 241, 0.06));
  position: relative;
  overflow: hidden;
}

.page-about .rm-milestone::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--rm-violet), #6366f1);
}

.page-about .rm-milestone__date {
  font-family: var(--proto-font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--rm-violet);
  letter-spacing: -0.02em;
  grid-row: span 2;
  align-self: center;
  padding-left: 12px;
}

.page-about .rm-milestone__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}

.page-about .rm-milestone__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--proto-text-muted);
  margin: 0;
}

.page-about .rm-dual-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.page-about .rm-track {
  border-radius: var(--proto-radius);
  border: 1px solid var(--proto-border);
  background: var(--proto-surface);
  padding: 32px;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .rm-track:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.page-about .rm-track--gas {
  border-top: 3px solid var(--rm-gas);
}

.page-about .rm-track--gas:hover {
  box-shadow: 0 20px 60px rgba(245, 158, 11, 0.1);
}

.page-about .rm-track--ai {
  border-top: 3px solid var(--rm-ai);
}

.page-about .rm-track--ai:hover {
  box-shadow: 0 20px 60px rgba(34, 211, 238, 0.1);
}

.page-about .rm-track__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.page-about .rm-track__title {
  font-family: var(--proto-font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
}

.page-about .rm-track--gas .rm-track__title { color: #fbbf24; }
.page-about .rm-track--ai .rm-track__title { color: var(--rm-ai); }

.page-about .rm-track__badge {
  font-family: var(--proto-font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
}

.page-about .rm-track--gas .rm-track__badge {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.page-about .rm-track--ai .rm-track__badge {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.page-about .rm-track__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--proto-text-muted);
  margin: 0 0 24px;
}

.page-about .rm-steps {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.page-about .rm-steps::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--proto-border);
}

.page-about .rm-track--gas .rm-steps::before {
  background: linear-gradient(180deg, var(--rm-gas), rgba(245, 158, 11, 0.2));
}

.page-about .rm-track--ai .rm-steps::before {
  background: linear-gradient(180deg, var(--rm-ai), rgba(34, 211, 238, 0.15));
}

.page-about .rm-step {
  display: grid;
  grid-template-columns: 24px 1fr auto;
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  position: relative;
}

.page-about .rm-step__dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--proto-border);
  background: var(--proto-bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--proto-font-mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--proto-text-muted);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.page-about .rm-track--gas .rm-step--done .rm-step__dot {
  border-color: var(--rm-gas);
  background: var(--rm-gas-dim);
  color: var(--rm-gas);
}

.page-about .rm-track--ai .rm-step--active .rm-step__dot {
  border-color: var(--rm-ai);
  background: var(--rm-ai-dim);
  color: var(--rm-ai);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.25);
}

.page-about .rm-step__body h4 {
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 4px;
}

.page-about .rm-step__body p {
  font-size: 11px;
  line-height: 1.5;
  color: var(--proto-text-muted);
  margin: 0;
}

.page-about .rm-step__status {
  font-family: var(--proto-font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
  align-self: start;
  margin-top: 2px;
}

.page-about .rm-step__status--done {
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
}

.page-about .rm-step__status--active {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
}

.page-about .rm-step__status--planned {
  background: rgba(148, 163, 184, 0.12);
  color: #94a3b8;
}

.page-about .rm-track__link {
  color: var(--proto-blue);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease, color 0.2s ease;
}

.page-about .rm-track__link:hover {
  color: var(--proto-cyan);
  gap: 10px;
}

@media (max-width: 900px) {
  .page-about .rm-dual-grid {
    grid-template-columns: 1fr;
  }

  .page-about .rm-milestone {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .page-about .rm-milestone__date {
    grid-row: auto;
    padding-left: 12px;
  }
}

@media (max-width: 600px) {
  .page-about .rm-section {
    padding: 52px 0;
  }

  .page-about .rm-track__header {
    margin-bottom: 24px;
  }

  .page-about .rm-step {
    grid-template-columns: 24px 1fr;
    gap: 12px;
    padding: 16px 0;
  }

  .page-about .rm-step__status {
    grid-column: 2;
    margin-top: 6px;
    justify-self: start;
  }

  .page-about .rm-milestone {
    gap: 14px;
    padding: 22px 18px;
    margin-bottom: 32px;
  }

  .page-about .rm-track {
    padding: 24px 20px;
  }

  .page-about .rm-dual-grid {
    gap: 20px;
  }
}