/* ============================================================
   VENVITY — System Page Styles
   ============================================================ */

/* ---- Hero ---- */
.system-hero {
  padding-bottom: clamp(3rem, 6vw, 6rem);
}

.system-hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding-top: 2rem;
}

/* ---- Ecosystem Diagram ---- */
.ecosystem-diagram {
  position: relative;
  width: 340px;
  height: 340px;
  margin: 0 auto;
}

.eco-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 100px; height: 100px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 2;
  box-shadow: 0 4px 20px rgba(111,143,134,.4);
}

.eco-center span {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  line-height: 1.4;
}

.eco-orbit {
  position: absolute;
  inset: 0;
}

.eco-orbit::before {
  content: '';
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(111,143,134,.2);
  border-radius: 50%;
}

.eco-node {
  position: absolute;
  width: 72px; height: 72px;
  background: var(--bg-white);
  border: 1.5px solid var(--border-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  z-index: 2;
  transform: translate(-50%, -50%);
}

.eco-node span {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--text-dark);
  text-align: center;
  line-height: 1.3;
  padding: 0 5px;
}

/* 5 nodes at 72° intervals on r=120px, center=170px (container 340px) */
/* Angles: -90°, -18°, 54°, 126°, 198° */
.eco-node--1 { top:  50px; left: 170px; } /* top         0° offset */
.eco-node--2 { top: 133px; left: 284px; } /* top-right  72° offset */
.eco-node--3 { top: 267px; left: 241px; } /* btm-right 144° offset */
.eco-node--4 { top: 267px; left:  99px; } /* btm-left  216° offset */
.eco-node--5 { top: 133px; left:  56px; } /* top-left  288° offset */

/* ---- System Products ---- */
.sys-product {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 1rem 0;
}

.sys-product--reversed .sys-product__visual {
  order: 2;
}

.sys-product--reversed .sys-product__content {
  order: 1;
}

.sys-product__visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.sys-product__visual .visual-hero {
  height: 320px;
}

.sys-product__number {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.875rem;
}

.sys-product__features {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  list-style: none;
}

.sys-product__features li {
  font-size: 0.9rem;
  color: var(--text-mid);
  padding-left: 1.25rem;
  position: relative;
  line-height: 1.5;
}

.sys-product__features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 0.75rem;
}

.sys-product__meta {
  display: flex;
  gap: 2.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.sys-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.sys-meta-item span:last-child {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-dark);
}

.sys-product__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---- Connection Timeline ---- */
.timeline {
  position: relative;
  max-width: 680px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 15px;
  width: 1px;
  background: linear-gradient(to bottom, var(--primary), var(--accent), var(--primary));
  opacity: 0.3;
}

.timeline-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 1.5rem;
  padding-bottom: 2.5rem;
  position: relative;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-marker {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg-white);
  box-shadow: 0 0 0 2px var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.timeline-marker--accent {
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-content {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.timeline-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .system-hero__inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .ecosystem-diagram {
    width: 280px;
    height: 280px;
  }

  /* 5 nodes at 72° intervals on r=100px, center=140px (container 280px) */
  .eco-node--1 { top:  40px; left: 140px; }
  .eco-node--2 { top: 109px; left: 235px; }
  .eco-node--3 { top: 221px; left: 199px; }
  .eco-node--4 { top: 221px; left:  81px; }
  .eco-node--5 { top: 109px; left:  45px; }
}

@media (max-width: 768px) {
  .sys-product,
  .sys-product--reversed .sys-product__visual,
  .sys-product--reversed .sys-product__content {
    grid-template-columns: 1fr;
    order: unset;
  }

  .sys-product { gap: 2rem; }

  .sys-product__visual .visual-hero { height: 220px; }

  .sys-product__meta { flex-direction: column; gap: 1rem; }

  .timeline::before { left: 12px; }
  .timeline-item { grid-template-columns: 36px 1fr; }
  .timeline-marker { width: 24px; height: 24px; }
}