/* ============== PRODUCT BLOCKS ============== */
.product-block { padding: 90px 0; }
.product-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
}
.product-aside { position: sticky; top: 140px; }
.product-aside .p-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--cobalt); margin-bottom: 12px;
}
.product-aside .p-meta {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.1em;
  color: var(--mute); margin-bottom: 18px;
  padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px;
}
.product-aside h2 {
  font-size: clamp(1.9rem, 3.2vw, 2.5rem);
  margin-bottom: 12px;
}
.product-aside .p-sub {
  font-size: 17px; color: var(--cobalt); font-weight: 500;
  margin-bottom: 18px;
}
.product-aside .p-lede {
  font-size: 15.5px; color: var(--soft); line-height: 1.65;
  margin-bottom: 24px;
}
.product-aside .p-cta {
  display: flex; flex-wrap: wrap; gap: 10px;
}

.product-body h3 {
  font-size: 20px; margin-bottom: 22px;
  padding-bottom: 14px; border-bottom: 1px solid var(--line);
}

/* Problem / Solution box pair */
.problem-solution {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 40px;
}
.ps-box {
  padding: 24px 26px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
}
.ps-problem {
  background: var(--paper);
  border-left: 3px solid var(--c-warn);
}
.s-paper .ps-problem { background: #fff; }
.ps-solution {
  background: var(--paper);
  border-left: 3px solid var(--cobalt);
}
.s-paper .ps-solution { background: #fff; }
.ps-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--mute); margin-bottom: 10px;
}
.ps-box p {
  font-size: 14.5px; color: var(--soft); line-height: 1.6;
  margin-bottom: 10px;
}
.ps-box p:last-child { margin-bottom: 0; }

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.feature-item {
  padding: 22px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: border-color 0.2s, transform 0.2s;
}
.s-paper .feature-item { background: #fff; }
.s-white .feature-item { background: var(--paper); }
.feature-item:hover {
  border-color: var(--cobalt);
  transform: translateY(-2px);
}
.feature-item .f-name {
  font-family: 'Inter Tight', sans-serif;
  font-size: 15px; font-weight: 700;
  color: var(--l-text); margin-bottom: 8px;
}
.feature-item p {
  font-size: 14px; color: var(--soft); line-height: 1.55;
}

/* How-it-works flow — vertical timeline */
.flow {
  list-style: none; counter-reset: flow;
  margin: 0; padding: 0;
}
.flow li {
  counter-increment: flow;
  position: relative;
  padding: 6px 0 26px 60px;
  font-size: 14.5px; color: var(--soft);
  line-height: 1.6;
}
.flow li:last-child { padding-bottom: 0; }
.flow li::before {
  content: counter(flow, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; font-weight: 600;
  color: var(--cobalt);
  background: rgba(0, 112, 243, 0.08);
  border: 1px solid rgba(0, 112, 243, 0.28);
  border-radius: 50%;
  letter-spacing: 0.04em;
  z-index: 1;
}
.flow li::after {
  content: '';
  position: absolute; left: 18.5px; top: 42px; bottom: -4px;
  width: 1px;
  background: var(--line);
}
.flow li:last-child::after { display: none; }
.flow li strong { color: var(--l-text); font-weight: 600; }

/* Spec table */
.spec-table {
  width: 100%; border-collapse: collapse;
  font-size: 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}
.spec-table th {
  text-align: left;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--mute); font-weight: 500;
  padding: 12px 16px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  width: 30%;
  vertical-align: top;
}
.s-paper .spec-table th { background: #fff; }
.spec-table td {
  padding: 12px 16px;
  color: var(--l-text);
  border-bottom: 1px solid var(--line);
}
.spec-table tr:last-child th,
.spec-table tr:last-child td { border-bottom: none; }

/* Bullet list reusable */
.bullet-list {
  list-style: none; display: grid; gap: 10px;
}
.bullet-list li {
  font-size: 14.5px; color: var(--l-text);
  padding-left: 22px; position: relative;
}
.bullet-list li::before {
  content: ''; position: absolute; left: 0; top: 9px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cobalt);
}

/* ============== RESPONSIVE ============== */
@media (max-width: 980px) {
  .product-grid { grid-template-columns: 1fr; gap: 32px; }
  .product-aside { position: static; }
  .problem-solution { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .product-block { padding: 60px 0; }
  .spec-table th, .spec-table td { padding: 10px 12px; font-size: 13px; }
  .spec-table th { width: 38%; }
}