/* ============================================================
   AGR Robotics — pages/solutions.css
   Solutions overview + Cells + Lines + Tooling
   ============================================================ */

/* --- Solutions Overview Hero ------------------------------- */
.sol-hero {
  padding: 130px 0 80px;
  position: relative;
  overflow: hidden;
}
.sol-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 30% 50%, rgba(200,168,75,0.05) 0%, transparent 70%),
    linear-gradient(180deg, var(--bg-primary) 0%, #0A0F14 100%);
}
.sol-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.sol-hero h1 {
  font-size: clamp(50px, 6.5vw, 84px);
  margin-bottom: 28px;
}
.sol-hero h1 em { color: var(--accent); font-style: normal; }

/* Sub-pages nav shortcuts on overview */
.sol-nav-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.sol-nav-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, background 0.2s;
  text-decoration: none;
}
.sol-nav-card:hover {
  border-color: var(--border);
  background: var(--bg-tertiary);
}
.sol-nav-card-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--accent);
  margin-bottom: 5px;
}
.sol-nav-card-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-primary);
}
.sol-nav-card-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
}
.sol-nav-card-arrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--accent);
  transition: transform 0.2s;
}
.sol-nav-card:hover .sol-nav-card-arrow { transform: translateX(4px); }

/* Comparison grid on overview */
.sol-compare {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 56px;
}
.sol-compare-col {
  padding: 36px 32px;
  border-right: 1px solid var(--border-subtle);
}
.sol-compare-col:last-child { border-right: none; }
.sol-compare-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.sol-compare-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.sol-compare-when {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}
.sol-compare-link {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: gap 0.2s;
}
.sol-compare-col:hover .sol-compare-link { gap: 12px; }

/* --- Sub-page Hero (Cells / Lines / Tooling) --------------- */
.subpage-hero {
  padding: 110px 0 0;
  position: relative;
  background: var(--bg-primary);
  overflow: hidden;
}
.subpage-hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 40% 50% at 20% 60%, rgba(200,168,75,0.04) 0%, transparent 70%);
}
.subpage-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
  position: relative;
  z-index: 1;
  padding-bottom: 72px;
}
.subpage-hero h1 {
  font-size: clamp(48px, 6vw, 78px);
  margin-bottom: 28px;
}
.subpage-hero h1 em { color: var(--accent); font-style: normal; display: block; }

/* Engineering approach — 4-layer grid */
.four-layers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 48px;
}
.layer-card {
  padding: 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s;
}
.layer-card:hover { border-color: var(--border); }
.layer-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--accent);
  margin-bottom: 10px;
}
.layer-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.layer-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Scope of delivery table */
.scope-table {
  width: 100%;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-top: 48px;
}
.scope-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  border-bottom: 1px solid var(--border-subtle);
}
.scope-row:last-child { border-bottom: none; }
.scope-row:nth-child(even) { background: rgba(31,40,53,0.4); }
.scope-cat {
  padding: 16px 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
}
.scope-items {
  padding: 16px 20px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Selection guide */
.sel-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 48px;
}
.sel-col {
  padding: 36px 32px;
  border-right: 1px solid var(--border-subtle);
}
.sel-col:last-child { border-right: none; }
.sel-col-head {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}
.sel-col-head.yes { color: var(--accent); }
.sel-col-head.no  { color: var(--text-muted); }

/* --- Responsive -------------------------------------------- */
@media (max-width: 1024px) {
  .sol-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .sol-compare { grid-template-columns: 1fr; }
  .sol-compare-col { border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .sol-compare-col:last-child { border-bottom: none; }
  .subpage-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .sel-guide { grid-template-columns: 1fr; }
  .sel-col { border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .sel-col:last-child { border-bottom: none; }
}
@media (max-width: 768px) {
  .sol-hero-inner, .subpage-hero-inner { padding: 0 20px; padding-bottom: 48px; }
  .four-layers { grid-template-columns: 1fr; }
  .scope-row { grid-template-columns: 1fr; }
  .scope-cat { border-right: none; border-bottom: 1px solid var(--border-subtle); }
}