/* ReconLens marketing site — shared stylesheet */

:root {
  --accent: #4F46E5;
  --accent-dark: #4038c7;
  --accent-soft: #eef2ff;
  --ink: #16181d;
  --ink-soft: #4b5563;
  --ink-faint: #6b7280;
  --line: #e5e7eb;
  --line-soft: #f3f4f6;
  --bg: #ffffff;
  --bg-alt: #f8f9fb;
  --green: #067647;
  --green-bg: #ecfdf3;
  --green-line: #abefc6;
  --amber: #93370d;
  --amber-bg: #fffaeb;
  --amber-line: #fedf89;
  --red: #b42318;
  --red-bg: #fef3f2;
  --red-line: #fecdca;
  --footer-bg: #101322;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 19, 34, 0.05), 0 8px 24px rgba(16, 19, 34, 0.06);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; vertical-align: middle; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -0.02em; font-weight: 650; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); }
h3 { font-size: 1.2rem; }

p { color: var(--ink-soft); }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; }
.brand svg { flex: none; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}
.site-nav a {
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--ink); text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 9px;
  cursor: pointer;
  color: var(--ink);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  border-radius: 8px;
  padding: 12px 22px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }

.btn-secondary {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}
.btn-secondary:hover { border-color: #c7cad1; }

.btn-sm { padding: 8px 16px; font-size: 0.92rem; }
.btn-lg { padding: 14px 28px; font-size: 1.06rem; }

.site-nav .btn-primary { color: #fff; }

/* ---------- Sections ---------- */

.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head p { margin-top: 12px; font-size: 1.06rem; }

.kicker {
  display: inline-block;
  color: var(--accent);
  font-weight: 650;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

/* ---------- Hero ---------- */

.hero { padding: 84px 0 72px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero h1 { margin-bottom: 18px; }
.hero .sub { font-size: 1.14rem; margin-bottom: 28px; max-width: 34em; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-note { margin-top: 14px; font-size: 0.9rem; color: var(--ink-faint); }

/* ---------- Product mockup ---------- */

.mockup {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  font-size: 0.84rem;
}
.mockup-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-alt);
  color: var(--ink-faint);
  font-size: 0.8rem;
}
.mockup-dots { display: flex; gap: 5px; }
.mockup-dots span { width: 9px; height: 9px; border-radius: 50%; background: #d7dae0; }

.mockup-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
}
.mockup-meta strong { color: var(--ink); font-weight: 600; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.76rem;
  font-weight: 600;
  white-space: nowrap;
}
.badge-warn { background: var(--amber-bg); color: var(--amber); border: 1px solid var(--amber-line); }
.badge-ok { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-line); }

.mockup-collapsed {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--green-bg);
  color: var(--green);
  font-weight: 500;
  border-bottom: 1px solid var(--line);
}
.mockup-collapsed .show-all {
  margin-left: auto;
  color: var(--green);
  text-decoration: underline;
  white-space: nowrap;
}

.mockup table { width: 100%; border-collapse: collapse; }
.mockup th, .mockup td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
}
.mockup th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
  font-weight: 600;
  background: var(--bg-alt);
}
.mockup td.num { text-align: right; font-variant-numeric: tabular-nums; }
.mockup tr.flagged { background: var(--amber-bg); box-shadow: inset 3px 0 0 #f79009; }
.mockup tr.flagged-red { background: var(--red-bg); box-shadow: inset 3px 0 0 #f04438; }
.mockup .desc { max-width: 190px; overflow: hidden; text-overflow: ellipsis; }

.tag {
  display: inline-block;
  border-radius: 5px;
  padding: 1px 7px;
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.03em;
}
.tag-mismatch { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-line); }
.tag-lowconf { background: var(--amber-bg); color: var(--amber); border: 1px solid var(--amber-line); }
.tag-dupe { background: var(--accent-soft); color: var(--accent); border: 1px solid #c7d2fe; }

.mockup-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  color: var(--ink-faint);
  font-size: 0.78rem;
}
.mockup-foot .fake-btn {
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 5px 12px;
  font-weight: 600;
  white-space: nowrap;
}

/* ---------- Steps (how it works) ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
}
.step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 14px;
}
.step h3 { font-size: 1.04rem; margin-bottom: 8px; }
.step p { font-size: 0.93rem; }

/* ---------- Feature / card grids ---------- */

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}
.card h3 { margin-bottom: 10px; }
.card p { font-size: 0.96rem; }
.card .card-link { display: inline-block; margin-top: 14px; font-weight: 600; }

.icon-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}

/* ---------- Math / equation panel ---------- */

.math-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px;
}
.equation {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 1.02rem;
}
.equation .eq-term {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  text-align: center;
}
.equation .eq-term small {
  display: block;
  font-weight: 500;
  color: var(--ink-faint);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}
.equation .eq-op { color: var(--ink-faint); font-size: 1.25rem; }
.equation .eq-ok { border-color: var(--green-line); background: var(--green-bg); color: var(--green); }
.math-panel .math-note { margin-top: 18px; font-size: 0.95rem; }

/* ---------- Pricing ---------- */

.plans {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch;
}
.plan {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}
.plan.plan-featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); position: relative; }
.plan-flag {
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 3px 10px;
}
.plan h3 { font-size: 1.05rem; margin-bottom: 6px; }
.plan .price { font-size: 2.15rem; font-weight: 700; letter-spacing: -0.03em; }
.plan .price small { font-size: 0.95rem; font-weight: 500; color: var(--ink-faint); letter-spacing: 0; }
.plan .annual { font-size: 0.85rem; color: var(--ink-faint); margin: 2px 0 16px; }
.plan ul { list-style: none; margin: 0 0 22px; flex: 1; }
.plan ul li {
  padding: 6px 0 6px 26px;
  font-size: 0.93rem;
  color: var(--ink-soft);
  position: relative;
}
.plan ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--green-bg) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" viewBox="0 0 24 24" fill="none" stroke="%23067647" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"><path d="M20 6L9 17l-5-5"/></svg>') center no-repeat;
}
.plan .btn { width: 100%; text-align: center; }

.pricing-banner {
  background: var(--accent-soft);
  border: 1px solid #c7d2fe;
  border-radius: var(--radius);
  padding: 20px 26px;
  margin: 36px 0 0;
  color: #3730a3;
  font-weight: 500;
}
.pricing-banner strong { color: var(--accent-dark); }

/* ---------- Comparison tables ---------- */

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 0.95rem; }
.compare-table th, .compare-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
.compare-table thead th {
  background: var(--bg-alt);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  border-bottom: 1px solid var(--line);
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table td:first-child { font-weight: 600; color: var(--ink); white-space: nowrap; }
.compare-table .col-us { background: #fbfbff; }
.compare-table td { color: var(--ink-soft); }

/* ---------- FAQ ---------- */

.faq-list { max-width: 760px; }
.faq-list details {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  margin-bottom: 12px;
  padding: 0 20px;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  padding: 16px 0;
  list-style: none;
  position: relative;
  padding-right: 28px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 12px;
  font-size: 1.3rem;
  color: var(--ink-faint);
  font-weight: 400;
}
.faq-list details[open] summary::after { content: "\2212"; }
.faq-list details p { padding: 0 0 18px; font-size: 0.97rem; }
.faq-list details p + p { margin-top: -6px; }

/* ---------- Prose (long-form pages) ---------- */

.prose { max-width: 760px; }
.prose h2 { margin: 48px 0 14px; }
.prose h3 { margin: 30px 0 10px; }
.prose p { margin-bottom: 16px; font-size: 1.02rem; }
.prose ul, .prose ol { margin: 0 0 16px 22px; color: var(--ink-soft); font-size: 1.02rem; }
.prose li { margin-bottom: 8px; }
.fineprint { font-size: 0.88rem; color: var(--ink-faint); }

.callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 10px 10px 0;
  padding: 16px 20px;
  margin: 22px 0;
}
.callout p { margin: 0; color: #3730a3; font-size: 0.98rem; }

/* ---------- Page hero (subpages) ---------- */

.page-hero { padding: 72px 0 56px; }
.page-hero h1 { max-width: 18em; margin-bottom: 16px; }
.page-hero .sub { font-size: 1.12rem; max-width: 42em; }

/* ---------- CTA band ---------- */

.cta-band {
  background: linear-gradient(135deg, #4F46E5 0%, #3f37c9 100%);
  border-radius: 16px;
  padding: 56px 48px;
  text-align: center;
  color: #fff;
}
.cta-band h2 { color: #fff; margin-bottom: 12px; }
.cta-band p { color: #dcdaff; font-size: 1.08rem; max-width: 40em; margin: 0 auto 26px; }
.cta-band .btn-white { background: #fff; color: var(--accent-dark); }
.cta-band .btn-white:hover { background: #f1f0ff; }
.cta-band .cta-small { margin-top: 14px; font-size: 0.88rem; color: #c6c3ff; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--footer-bg);
  color: #a3a8bd;
  padding: 60px 0 36px;
  margin-top: 88px;
  font-size: 0.93rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 44px;
}
.footer-brand .brand { color: #fff; margin-bottom: 12px; }
.footer-brand p { color: #a3a8bd; font-size: 0.9rem; max-width: 26em; }
.site-footer h4 {
  color: #fff;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 9px; }
.site-footer a { color: #a3a8bd; }
.site-footer a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  border-top: 1px solid #262b40;
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #7c8199;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .plans { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .section { padding: 60px 0; }
  .hero { padding: 56px 0 48px; }

  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 16px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; font-size: 1.02rem; }
  .site-nav .btn { margin-top: 8px; text-align: center; }

  .grid-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .cta-band { padding: 44px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .mockup .desc { max-width: 130px; }
}