.included {
  --bg: #07090a;
  --cyan: #51FBFD;
  --cyan-dim: rgba(81,251,253,0.12);
  --card-border: rgba(81,251,253,0.16);
  --white: #f5f7f7;
  --muted: #9aa3a3;
  --muted2: #6c7676;
}

.included {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--white);
  font-family: 'Inter', sans-serif;
}

.included .glow {
  position: absolute;
  width: 520px;
  height: 520px;
  background: var(--cyan);
  opacity: 0.06;
  filter: blur(150px);
  top: -160px;
  right: -120px;
  pointer-events: none;
}

.included .wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}

.included .mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}

.included .mono::before {
  content: '—';
}

.included .sec-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.included h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 36px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--white);
}

.included .sec-head p {
  color: var(--muted);
  margin-top: 16px;
  font-size: 15.5px;
}

.included .showcase {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 50px;
  align-items: stretch;
}

/* LEFT: list of items */
.included .item-list {
  display: flex;
  flex-direction: column;
}

.included .item {
  position: relative;
  padding: 20px 0 20px 22px;
  cursor: pointer;
  border-left: 2px solid rgba(255,255,255,0.08);
  transition: border-color .35s ease;
}

.included .item.active {
  border-left-color: var(--cyan);
}

/* progress fill */
.included .item-progress {
  position: absolute;
  left: -2px;
  top: 20px;
  width: 2px;
  height: 0%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(81,251,253,0.6);
  transition: height linear;
}

.included .item-top {
  display: flex;
  align-items: center;
  gap: 14px;
}

.included .item-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted2);
  transition: color .3s ease;
  width: 22px;
  flex-shrink: 0;
}

.included .item.active .item-num {
  color: var(--cyan);
}

.included .item h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--muted);
  transition: color .3s ease;
  margin: 0;
}

.included .item.active h4 {
  color: var(--white);
}

.included .item p {
  color: var(--muted2);
  font-size: 13px;
  margin: 0 0 0 36px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .4s ease, opacity .3s ease, margin .4s ease;
}

.included .item.active p {
  max-height: 60px;
  opacity: 1;
  margin-top: 8px;
}

/* RIGHT: dynamic preview panel */
.included .preview {
  position: relative;
  border-radius: 22px;
  border: 1px solid var(--card-border);
  background: radial-gradient(circle at 25% 15%, rgba(81,251,253,0.08), transparent 55%), rgba(255,255,255,0.02);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  min-height: 420px;
}

.included .preview-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--cyan-dim);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 26px;
}

.included .preview-icon i,
.included .preview-icon svg {
  font-size: 30px;
  width: 30px;
  height: 30px;
  color: var(--cyan);
  fill: var(--cyan);
}

.included .preview-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 27px;
  margin-bottom: 12px;
  color: var(--white);
}

.included .preview-desc {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  max-width: 460px;
  min-height: 78px;
}

/* decorative animated bars */
.included .preview-viz {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 70px;
  margin-top: 36px;
}

.included .viz-bar {
  flex: 1;
  background: linear-gradient(180deg, var(--cyan), rgba(81,251,253,0.15));
  border-radius: 4px 4px 0 0;
  height: 20%;
  transition: height .6s cubic-bezier(.16,.8,.3,1);
}

.included .preview-title, 
.included .preview-desc, 
.included .preview-icon, 
.included .preview-viz {
  opacity: 0;
  transform: translateY(10px);
  animation: panelIn 0.5s ease forwards;
}

.included .preview-icon { animation-delay: 0s; }
.included .preview-title { animation-delay: .05s; }
.included .preview-desc { animation-delay: .1s; }
.included .preview-viz { animation-delay: .15s; }

@keyframes panelIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media(max-width:900px){
  .included .showcase { grid-template-columns: 1fr; gap: 30px; }
  .included .preview { min-height: 320px; padding: 30px; }
  .included h2 { font-size: 28px; }
}