/* ===== LexiSaaS Product Pages — Extends homepage.css iso-* system ===== */

/* --- Sub-navigation for LexiSaaS pages --- */
.lxs-subnav{
  background:var(--iso-card-bg);border-bottom:1px solid var(--iso-card-border);
  padding:.5rem 2rem;position:sticky;top:64px;z-index:30;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.lxs-subnav-inner{
  max-width:1200px;margin:0 auto;display:flex;gap:1.5rem;align-items:center;
  overflow-x:auto;scrollbar-width:none;
}
.lxs-subnav-inner::-webkit-scrollbar{display:none}
.lxs-subnav a{
  font-size:.82rem;font-weight:600;color:var(--iso-muted);white-space:nowrap;
  padding:.4rem .6rem;border-radius:6px;transition:color .2s,background .2s;
  text-decoration:none;font-family:'Inter',sans-serif;
}
.lxs-subnav a:hover,.lxs-subnav a.is-active{color:var(--iso-coral);background:rgba(96,165,250,.08)}

/* --- Pricing formula --- */
.lxs-formula{
  display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap;
  padding:2rem;background:var(--iso-card-bg);border-radius:16px;
  border:1px solid var(--iso-card-border);margin-bottom:3rem;
}
.lxs-formula-item{text-align:center;min-width:120px}
.lxs-formula-item .lfi-label{font-size:.75rem;color:var(--iso-muted);font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.25rem}
.lxs-formula-item .lfi-value{font-size:1.5rem;font-weight:800;font-family:'Poppins',sans-serif;color:var(--iso-dark)}
.lxs-formula-op{font-size:1.5rem;font-weight:800;color:var(--iso-coral);font-family:'Poppins',sans-serif}
.lxs-formula-item.lfi-total .lfi-value{background:linear-gradient(135deg,var(--iso-coral),var(--iso-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* --- Calculator --- */
.lxs-calc{
  background:var(--iso-card-bg);border-radius:16px;padding:2rem;
  border:1px solid var(--iso-card-border);margin-bottom:3rem;
}
.lxs-calc-row{display:flex;gap:2rem;flex-wrap:wrap;margin-bottom:1.5rem}
.lxs-calc-field{flex:1;min-width:200px}
.lxs-calc-field label{display:block;font-size:.82rem;font-weight:600;color:var(--iso-muted);margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.04em}
.lxs-calc-field select,.lxs-calc-field input[type="range"]{
  width:100%;padding:.6rem;border-radius:8px;border:1px solid var(--iso-card-border);
  background:var(--iso-bg);color:var(--iso-dark);font-size:.9rem;font-family:'Inter',sans-serif;
}
.lxs-calc-field select:focus{outline:2px solid var(--iso-coral);outline-offset:1px}
.lxs-calc-field .lxs-range-val{font-size:.85rem;color:var(--iso-muted);margin-top:.25rem;text-align:right}
.lxs-calc-result{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;
  padding:1.5rem;border-radius:12px;background:var(--iso-section-alt);
}
.lxs-calc-stat{text-align:center}
.lxs-calc-stat .lcs-value{font-size:1.6rem;font-weight:800;font-family:'Poppins',sans-serif;color:var(--iso-coral)}
.lxs-calc-stat .lcs-value.lcs-savings{color:var(--iso-green)}
.lxs-calc-stat .lcs-label{font-size:.75rem;color:var(--iso-muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em;margin-top:.25rem}

/* --- Rate limits table --- */
.lxs-rate-table{width:100%;border-collapse:collapse;margin-bottom:2rem}
.lxs-rate-table th{
  text-align:left;padding:.75rem 1rem;font-size:.78rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.04em;color:var(--iso-muted);
  border-bottom:2px solid var(--iso-card-border);
}
.lxs-rate-table td{padding:.75rem 1rem;font-size:.9rem;color:var(--iso-text);border-bottom:1px solid var(--iso-card-border)}
.lxs-rate-table tr:hover td{background:rgba(96,165,250,.04)}
.lxs-rate-badge{
  display:inline-block;padding:.15rem .5rem;border-radius:999px;
  font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;
}
.lxs-rate-badge.starter{background:rgba(100,116,139,.1);color:var(--iso-muted)}
.lxs-rate-badge.growth{background:rgba(59,130,246,.1);color:var(--iso-coral)}
.lxs-rate-badge.scale{background:rgba(34,197,94,.1);color:var(--iso-green)}
.lxs-rate-badge.enterprise{background:rgba(251,191,36,.1);color:var(--iso-yellow)}
[data-theme="dark"] .lxs-rate-badge.starter{background:rgba(148,163,184,.15)}
[data-theme="dark"] .lxs-rate-badge.growth{background:rgba(96,165,250,.15)}
[data-theme="dark"] .lxs-rate-badge.scale{background:rgba(236,72,153,.15)}
[data-theme="dark"] .lxs-rate-badge.enterprise{background:rgba(251,191,36,.15)}

/* --- Docs sidebar --- */
.lxs-docs-layout{display:grid;grid-template-columns:240px 1fr;gap:2rem;max-width:1200px;margin:0 auto;padding:2rem}
.lxs-docs-sidebar{position:sticky;top:120px;align-self:start;max-height:calc(100vh - 140px);overflow-y:auto}
.lxs-docs-sidebar h3{
  font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  color:var(--iso-muted);margin:1.5rem 0 .5rem;padding-left:.5rem;
}
.lxs-docs-sidebar h3:first-child{margin-top:0}
.lxs-docs-sidebar a{
  display:block;padding:.4rem .75rem;font-size:.85rem;color:var(--iso-text);
  border-radius:6px;transition:all .2s;text-decoration:none;border-left:2px solid transparent;
}
.lxs-docs-sidebar a:hover{color:var(--iso-coral);background:rgba(96,165,250,.06)}
.lxs-docs-sidebar a.is-active{color:var(--iso-coral);background:rgba(96,165,250,.08);border-left-color:var(--iso-coral);font-weight:600}
.lxs-docs-content{min-width:0}
.lxs-docs-content h1{font-family:'Poppins',sans-serif;font-size:2.2rem;font-weight:800;color:var(--iso-dark);margin-bottom:1rem}
.lxs-docs-content h2{font-family:'Poppins',sans-serif;font-size:1.5rem;font-weight:700;color:var(--iso-dark);margin:2.5rem 0 1rem;padding-top:1rem;border-top:1px solid var(--iso-card-border)}
.lxs-docs-content h3{font-family:'Poppins',sans-serif;font-size:1.1rem;font-weight:700;color:var(--iso-dark);margin:1.5rem 0 .75rem}
.lxs-docs-content p{color:var(--iso-text);line-height:1.8;margin-bottom:1rem}
.lxs-docs-content ul,.lxs-docs-content ol{color:var(--iso-text);line-height:1.8;margin-bottom:1rem;padding-left:1.5rem}
.lxs-docs-content li{margin-bottom:.4rem}

/* Code blocks */
.lxs-code{
  background:#1e1e2e;color:#cdd6f4;border-radius:10px;padding:1.25rem;
  font-family:'JetBrains Mono','Fira Code',monospace;font-size:.82rem;
  overflow-x:auto;margin:1rem 0 1.5rem;line-height:1.7;border:1px solid rgba(96,165,250,.15);
}
.lxs-code .ck{color:#89b4fa}.lxs-code .cs{color:#a6e3a1}.lxs-code .cv{color:#f9e2af}.lxs-code .cc{color:#6c7086}

/* Inline code */
.lxs-docs-content code:not(.lxs-code code){
  background:var(--iso-section-alt);padding:.15rem .4rem;border-radius:4px;
  font-size:.85em;color:var(--iso-coral);font-family:'JetBrains Mono','Fira Code',monospace;
}

/* --- FAQ Accordion --- */
.lxs-faq-cat{margin-bottom:2.5rem}
.lxs-faq-cat-title{
  font-family:'Poppins',sans-serif;font-size:1.3rem;font-weight:700;color:var(--iso-dark);
  margin-bottom:1rem;display:flex;align-items:center;gap:.5rem;
}
.lxs-faq-cat-icon{
  width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  background:rgba(96,165,250,.1);flex-shrink:0;
}
[data-theme="dark"] .lxs-faq-cat-icon{background:rgba(96,165,250,.15)}
.lxs-faq-item{
  border:1px solid var(--iso-card-border);border-radius:10px;margin-bottom:.5rem;
  background:var(--iso-card-bg);overflow:hidden;transition:border-color .2s;
}
.lxs-faq-item:hover{border-color:var(--iso-coral)}
.lxs-faq-q{
  padding:1rem 1.25rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;
  font-weight:600;font-size:.95rem;color:var(--iso-dark);user-select:none;
}
.lxs-faq-q svg{width:18px;height:18px;color:var(--iso-muted);transition:transform .2s;flex-shrink:0}
.lxs-faq-item.is-open .lxs-faq-q svg{transform:rotate(180deg)}
.lxs-faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.lxs-faq-a-inner{padding:0 1.25rem 1rem;color:var(--iso-text);line-height:1.7;font-size:.9rem}

/* --- Feature grid --- */
.lxs-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}
.lxs-feature{
  padding:1.5rem;background:var(--iso-card-bg);border-radius:14px;
  border:1px solid var(--iso-card-border);transition:transform .3s,box-shadow .3s;
}
.lxs-feature:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.06)}
[data-theme="dark"] .lxs-feature:hover{box-shadow:0 12px 40px rgba(0,0,0,.25)}
.lxs-feature-icon{
  width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  margin-bottom:1rem;background:rgba(96,165,250,.1);
}
[data-theme="dark"] .lxs-feature-icon{background:rgba(96,165,250,.15)}
.lxs-feature-icon svg{width:22px;height:22px;color:var(--iso-coral)}
.lxs-feature h3{font-family:'Poppins',sans-serif;font-size:1.05rem;font-weight:700;color:var(--iso-dark);margin-bottom:.4rem}
.lxs-feature p{font-size:.85rem;color:var(--iso-muted);line-height:1.6}

/* --- Stats row (compact) --- */
.lxs-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin:2rem 0}
.lxs-stat{text-align:center;padding:1.5rem;background:var(--iso-card-bg);border-radius:12px;border:1px solid var(--iso-card-border)}
.lxs-stat-val{
  font-size:2rem;font-weight:800;font-family:'Poppins',sans-serif;
  background:linear-gradient(135deg,var(--iso-coral),var(--iso-purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.lxs-stat-label{font-size:.78rem;color:var(--iso-muted);margin-top:.25rem;font-weight:500}

/* --- Contact form --- */
.lxs-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
.lxs-contact-info{display:flex;flex-direction:column;gap:1rem}
.lxs-info-card{
  padding:1.25rem;background:var(--iso-card-bg);border-radius:12px;
  border:1px solid var(--iso-card-border);display:flex;align-items:center;gap:1rem;
}
.lxs-info-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(96,165,250,.1);flex-shrink:0;
}
[data-theme="dark"] .lxs-info-icon{background:rgba(96,165,250,.15)}
.lxs-info-icon svg{width:20px;height:20px;color:var(--iso-coral)}
.lxs-info-text h4{font-size:.9rem;font-weight:700;color:var(--iso-dark);margin-bottom:.15rem}
.lxs-info-text p{font-size:.82rem;color:var(--iso-muted)}
.lxs-form{display:flex;flex-direction:column;gap:1rem}
.lxs-form-field label{display:block;font-size:.82rem;font-weight:600;color:var(--iso-muted);margin-bottom:.35rem;text-transform:uppercase;letter-spacing:.04em}
.lxs-form-field input,.lxs-form-field select,.lxs-form-field textarea{
  width:100%;padding:.7rem;border-radius:8px;border:1px solid var(--iso-card-border);
  background:var(--iso-bg);color:var(--iso-dark);font-size:.9rem;font-family:'Inter',sans-serif;
  transition:border-color .2s;
}
.lxs-form-field input:focus,.lxs-form-field select:focus,.lxs-form-field textarea:focus{
  outline:none;border-color:var(--iso-coral);box-shadow:0 0 0 3px rgba(96,165,250,.15);
}
.lxs-form-field textarea{resize:vertical;min-height:120px}
.lxs-form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}

/* --- Models table (docs) --- */
.lxs-models-table{width:100%;border-collapse:collapse;margin:1rem 0 2rem}
.lxs-models-table th{
  text-align:left;padding:.6rem .75rem;font-size:.72rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.05em;color:var(--iso-muted);
  border-bottom:2px solid var(--iso-card-border);
}
.lxs-models-table td{padding:.6rem .75rem;font-size:.85rem;color:var(--iso-text);border-bottom:1px solid var(--iso-card-border)}
.lxs-models-table tr:hover td{background:rgba(96,165,250,.04)}

/* --- Paradigm comparison --- */
.lxs-compare{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin:2rem 0}
.lxs-compare-side{padding:1.5rem;border-radius:14px;border:1px solid var(--iso-card-border);background:var(--iso-card-bg)}
.lxs-compare-side h4{font-family:'Poppins',sans-serif;font-size:1rem;font-weight:700;margin-bottom:1rem;color:var(--iso-dark)}
.lxs-compare-side.lxs-compare-old{opacity:.7}
.lxs-compare-side.lxs-compare-new{border-color:var(--iso-coral);box-shadow:0 0 20px rgba(96,165,250,.1)}

/* --- Benchmark table --- */
.lxs-benchmark{width:100%;border-collapse:collapse;margin:1rem 0 2rem}
.lxs-benchmark th{text-align:left;padding:.6rem;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--iso-muted);border-bottom:2px solid var(--iso-card-border)}
.lxs-benchmark td{padding:.6rem;font-size:.88rem;color:var(--iso-text);border-bottom:1px solid var(--iso-card-border)}
.lxs-benchmark tr:hover td{background:rgba(96,165,250,.04)}

/* --- Use case cards --- */
.lxs-usecases{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}
.lxs-usecase{
  padding:1.5rem;background:var(--iso-card-bg);border-radius:14px;
  border:1px solid var(--iso-card-border);text-align:center;
}
.lxs-usecase-icon{font-size:2rem;margin-bottom:.75rem}
.lxs-usecase h4{font-family:'Poppins',sans-serif;font-size:1rem;font-weight:700;color:var(--iso-dark);margin-bottom:.4rem}
.lxs-usecase p{font-size:.85rem;color:var(--iso-muted);line-height:1.6}

/* --- Legal page --- */
.lxs-legal{max-width:800px;margin:0 auto;padding:2rem}
.lxs-legal h1{font-family:'Poppins',sans-serif;font-size:2.2rem;font-weight:800;color:var(--iso-dark);margin-bottom:.5rem}
.lxs-legal .lxs-legal-updated{font-size:.85rem;color:var(--iso-muted);margin-bottom:2rem}
.lxs-legal h2{font-family:'Poppins',sans-serif;font-size:1.3rem;font-weight:700;color:var(--iso-dark);margin:2rem 0 .75rem}
.lxs-legal h3{font-size:1rem;font-weight:600;color:var(--iso-dark);margin:1.5rem 0 .5rem}
.lxs-legal p{color:var(--iso-text);line-height:1.8;margin-bottom:1rem}
.lxs-legal ul{color:var(--iso-text);line-height:1.8;margin-bottom:1rem;padding-left:1.5rem}
.lxs-legal li{margin-bottom:.3rem}
.lxs-legal a{color:var(--iso-coral);text-decoration:underline}

/* --- Promo section (for Index.cshtml) --- */
.lxs-promo{
  padding:80px 2rem;background:var(--iso-section-alt);position:relative;overflow:hidden;
}
.lxs-promo-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 400px;gap:3rem;align-items:center}
.lxs-promo-text h2{font-family:'Poppins',sans-serif;font-size:2rem;font-weight:800;color:var(--iso-dark);margin-bottom:1rem}
.lxs-promo-text h2 span{background:linear-gradient(135deg,var(--iso-coral),var(--iso-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.lxs-promo-text p{color:var(--iso-muted);font-size:1rem;line-height:1.7;margin-bottom:1.5rem}
.lxs-promo-benefits{list-style:none;padding:0;margin:0 0 1.5rem}
.lxs-promo-benefits li{display:flex;align-items:center;gap:.6rem;padding:.4rem 0;font-size:.92rem;color:var(--iso-text)}
.lxs-promo-benefits li svg{width:18px;height:18px;color:var(--iso-coral);flex-shrink:0}

/* --- Responsive --- */
@media(max-width:768px){
  .lxs-docs-layout{grid-template-columns:1fr}
  .lxs-docs-sidebar{position:static;max-height:none;display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--iso-card-border)}
  .lxs-docs-sidebar h3{display:none}
  .lxs-docs-sidebar a{border-left:none;font-size:.78rem;padding:.3rem .6rem;background:var(--iso-section-alt);border-radius:999px}
  .lxs-contact-grid{grid-template-columns:1fr}
  .lxs-compare{grid-template-columns:1fr}
  .lxs-stats{grid-template-columns:1fr 1fr}
  .lxs-promo-inner{grid-template-columns:1fr}
  .lxs-form-row{grid-template-columns:1fr}
  .lxs-formula{flex-direction:column;gap:.75rem}
  .lxs-calc-row{flex-direction:column}
  .lxs-subnav-inner{gap:1rem}
}
@media(max-width:480px){
  .lxs-stats{grid-template-columns:1fr}
  .lxs-features{grid-template-columns:1fr}
  .lxs-usecases{grid-template-columns:1fr}
}