/* ==========================================================================
   Features section — pills + détails alternés
   ========================================================================== */
.features-pills {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 3rem;
}
.feat-pill {
  background: white;
  border: 1px solid var(--border);
  padding: 0.55rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.feat-pill:hover {
  color: var(--text-dark);
  border-color: var(--primary);
  transform: translateY(-1px);
}
.feat-pill.active {
  background: var(--gradient);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(99,102,241,0.35);
}
.feat-pill svg { width: 14px; height: 14px; }

.feat-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-md);
}
.feat-detail-text h3 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.feat-detail-text p {
  color: var(--text-light);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  line-height: 1.65;
}
.feat-detail-list {
  display: flex; flex-direction: column; gap: 0.65rem;
}
.feat-detail-list li {
  display: flex; gap: 0.6rem; align-items: flex-start;
  font-size: 0.92rem;
  color: var(--text-main);
  list-style: none;
}
.feat-detail-list svg {
  flex-shrink: 0;
  width: 18px; height: 18px;
  color: var(--primary);
  margin-top: 2px;
}
.feat-detail-visual {
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  padding: 2rem;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.feat-detail-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(99,102,241,0.08), transparent 70%);
}

/* Routing visual */
.routing-viz {
  position: relative;
  width: 100%;
  max-width: 320px;
}
.routing-node {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.7rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dark);
  display: flex; align-items: center; gap: 0.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 2;
}
.routing-node .badge {
  margin-left: auto;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  font-family: var(--mono);
}
.routing-node.in .badge { background: rgba(99,102,241,0.12); color: var(--primary); }
.routing-node.r1 .badge { background: rgba(16,185,129,0.12); color: var(--success); }
.routing-node.r2 .badge { background: rgba(245,158,11,0.12); color: var(--warning); }
.routing-node.r3 .badge { background: rgba(236,72,153,0.12); color: var(--accent); }
.routing-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
  margin-top: 1.5rem;
  position: relative;
}
.routing-row::before {
  content: '';
  position: absolute;
  top: -1.2rem;
  left: 50%;
  height: 1.2rem;
  width: 2px;
  background: var(--border-strong);
}
.routing-row::after {
  content: '';
  position: absolute;
  top: -0.7rem;
  left: 16.66%;
  right: 16.66%;
  height: 2px;
  background: var(--border-strong);
}
.routing-row .routing-node {
  font-size: 0.78rem;
  padding: 0.55rem 0.7rem;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
}
.routing-row .routing-node .badge { margin-left: 0; font-size: 0.62rem; }

@media (max-width: 880px) {
  .feat-detail { grid-template-columns: 1fr; gap: 2rem; padding: 2rem; }
}