/* =========================================================
   ArendVision — Landing Page
   Brand: Industrial Navy #003B70 · Safety Orange #F36F18 · White #FFFFFF
   ========================================================= */

:root{
  --navy: #003B70;
  --navy-dark: #002649;
  --navy-tint: #EAF1F8;
  --orange: #F36F18;
  --orange-dark: #D65A0A;
  --white: #FFFFFF;
  --ink: #16232E;
  --ink-soft: #4A5A68;
  --line: #DCE4EA;
  --ok: #1F9D55;
  --warn: #F36F18;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,20,50,.08), 0 1px 2px rgba(0,20,50,.06);
  --shadow-md: 0 8px 24px rgba(0,20,50,.10);
  --shadow-lg: 0 20px 48px rgba(0,20,50,.16);

  --container: 1160px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-weight:800; line-height:1.15; letter-spacing:-0.01em; }
p{ margin:0; }

.skip-link{
  position:absolute; left:-9999px; top:0; background:var(--navy); color:#fff;
  padding:.75rem 1.25rem; z-index:200; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; }

.container{
  width:100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container.narrow{ max-width: 760px; }
.container.center{ text-align:center; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:.5rem;
  font-weight:700;
  border-radius: 999px;
  padding: 0.9rem 1.6rem;
  border: 2px solid transparent;
  cursor:pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  font-size: 1rem;
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{
  background: var(--orange);
  color: #fff;
  box-shadow: 0 6px 18px rgba(243,111,24,.35);
}
.btn-primary:hover{ background: var(--orange-dark); box-shadow: 0 8px 22px rgba(243,111,24,.45); }
.btn-ghost{
  background: transparent;
  color: var(--navy);
  border-color: rgba(0,59,112,.25);
}
.btn-ghost:hover{ border-color: var(--navy); background: rgba(0,59,112,.05); }
.btn-outline{
  background:transparent;
  color: var(--navy);
  border-color: var(--navy);
  width:100%;
}
.btn-outline:hover{ background: var(--navy); color:#fff; }
.btn-sm{ padding: .55rem 1.1rem; font-size:.9rem; }
.btn-lg{ padding: 1.05rem 2rem; font-size:1.05rem; }
.btn-block{ width:100%; }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top:0; z-index:100;
  background: rgba(255,255,255,.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height: 72px;
  gap: 1.5rem;
}
.logo{ display:flex; align-items:center; gap:.5rem; flex-shrink:0; }
.logo-text{
  font-weight:800; font-size:1.15rem; color:var(--navy); letter-spacing:-0.01em;
}
.brand-accent{ color: var(--orange); }

.main-nav{ display:flex; align-items:center; gap:1.75rem; flex:1; justify-content:center; }
.main-nav a{
  font-size:.95rem; font-weight:600; color: var(--ink-soft);
  position:relative; padding: 6px 2px;
}
.main-nav a:hover{ color: var(--navy); }

.header-cta{ flex-shrink:0; }
.nav-toggle{ display:none; }
.nav-cta-mobile{ display:none; }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background: linear-gradient(180deg, var(--navy-dark) 0%, var(--navy) 65%, #024b8c 100%);
  color:#fff;
  padding: 96px 0 80px;
}
.hero-bg{
  position:absolute; inset:0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(243,111,24,.18), transparent 40%),
    radial-gradient(circle at 85% 0%, rgba(255,255,255,.08), transparent 45%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.035) 0px, rgba(255,255,255,.035) 1px, transparent 1px, transparent 42px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.035) 0px, rgba(255,255,255,.035) 1px, transparent 1px, transparent 42px);
  pointer-events:none;
}
.hero-inner{ position:relative; text-align:center; }
.eyebrow{
  text-transform:uppercase; letter-spacing:.12em; font-size:.78rem; font-weight:700;
  color: #FFC49A; margin-bottom: 1.1rem;
}
.eyebrow-light{ color: #FFC49A; }
.hero h1{
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  max-width: 900px; margin: 0 auto 1.25rem;
}
.hero .lead{
  font-size: 1.15rem;
  color: rgba(255,255,255,.85);
  max-width: 680px; margin: 0 auto 2.25rem;
}
.hero-actions{
  display:flex; gap: 1rem; justify-content:center; flex-wrap:wrap; margin-bottom: 3.5rem;
}
.hero .btn-ghost{ color:#fff; border-color: rgba(255,255,255,.35); }
.hero .btn-ghost:hover{ background: rgba(255,255,255,.08); border-color:#fff; }

.hero-hud{ position:relative; max-width: 640px; margin: 0 auto; }
.hud-frame{
  position:relative;
  border: 1.5px solid rgba(255,255,255,.25);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.05);
  padding: 2.5rem 1.5rem;
  min-height: 160px;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:.9rem;
}
.hud-chip{
  display:inline-flex; align-items:center; gap:.55rem;
  background: rgba(255,255,255,.94);
  color: var(--ink);
  padding: .6rem 1rem;
  border-radius: 999px;
  font-size: .88rem; font-weight:700;
  box-shadow: var(--shadow-md);
}
.hud-chip .dot{ width:8px; height:8px; border-radius:50%; flex-shrink:0; }
.hud-chip--warn .dot{ background: var(--orange); box-shadow:0 0 0 4px rgba(243,111,24,.25); }
.hud-chip--ok .dot{ background: var(--ok); box-shadow:0 0 0 4px rgba(31,157,85,.2); }
.hud-crosshair{
  position:absolute; width:34px; height:34px; top:14px; right:14px;
  border:1.5px solid rgba(255,255,255,.4); border-radius:50%;
}
.hud-crosshair::before, .hud-crosshair::after{
  content:""; position:absolute; background: rgba(255,255,255,.4);
}
.hud-crosshair::before{ left:50%; top:-6px; bottom:-6px; width:1px; transform:translateX(-50%); }
.hud-crosshair::after{ top:50%; left:-6px; right:-6px; height:1px; transform:translateY(-50%); }

/* ---------- Generic Section ---------- */
.section{ padding: 88px 0; }
.section.alt{ background: var(--navy-tint); }
.section.dark{ background: var(--navy-dark); color:#fff; }
.section.dark .compliance-card{ background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.12); }
.section.dark .compliance-card h3{ color:#fff; }
.section.dark .compliance-card p{ color: rgba(255,255,255,.75); }
.section.dark .closing-note{ color: rgba(255,255,255,.85); }

.section h2{ font-size: clamp(1.7rem, 3.4vw, 2.35rem); margin-bottom: 1.1rem; }
.section-lead{ font-size: 1.1rem; color: var(--ink-soft); margin-bottom: 1.1rem; }
.section-lead.light{ color: rgba(255,255,255,.82); }
.section p + p{ margin-top: 1rem; }
.section .container.narrow > p{ color: var(--ink-soft); font-size:1.02rem; }

.callout{
  font-size: 1.35rem !important;
  font-weight: 800;
  color: var(--navy) !important;
  margin-top: 1.75rem !important;
  padding-left: 1.1rem;
  border-left: 4px solid var(--orange);
}

/* ---------- Problem stats ---------- */
.stat-strip{
  margin-top: 56px;
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
}
.stat{ text-align:center; padding: 1.5rem 1rem; border-radius: var(--radius); background: var(--navy-tint); }
.stat-num{ display:block; font-size: 2rem; font-weight:800; color: var(--navy); margin-bottom:.35rem; }
.stat-label{ font-size:.88rem; color: var(--ink-soft); }

/* ---------- Feature grid ---------- */
.feature-grid{
  margin-top: 56px;
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem;
}
.feature-card{
  background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease;
}
.feature-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-icon{
  width:52px; height:52px; border-radius:14px;
  background: var(--navy-tint); color: var(--navy);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 1.25rem;
}
.feature-icon svg{ width:26px; height:26px; }
.feature-card h3{ font-size:1.1rem; margin-bottom:.6rem; }
.feature-card p{ color: var(--ink-soft); font-size:.96rem; }

/* ---------- Trust strip ---------- */
.trust-strip{ background: var(--navy); color:#fff; margin-top: 72px; padding: 2.75rem 0; }
.trust-inner{ display:flex; align-items:center; justify-content:space-between; gap:2rem; flex-wrap:wrap; }
.trust-inner h3{ font-size:1.15rem; max-width:320px; }
.trust-list{ display:flex; flex-wrap:wrap; gap: .6rem 1rem; flex:1; }
.trust-list li{
  font-size:.85rem; font-weight:600;
  background: rgba(255,255,255,.1);
  padding:.45rem .9rem; border-radius:999px;
  border: 1px solid rgba(255,255,255,.16);
}
.trust-link{ font-weight:700; color: #FFC49A; white-space:nowrap; }
.trust-link:hover{ text-decoration:underline; }

/* ---------- Positioning ---------- */
.positioning{ padding-top:64px; }
.positioning h2{ color: var(--navy); }

/* ---------- Product detail grid ---------- */
.detail-grid{
  margin-top:52px;
  display:grid; grid-template-columns: repeat(3, 1fr); gap:1.5rem;
}
.detail-card{
  background:#fff; border:1px solid var(--line); border-radius: var(--radius);
  padding: 1.75rem;
}
.detail-card h3{ font-size:1.05rem; color: var(--navy); margin-bottom:.6rem; }
.detail-card p{ font-size:.94rem; color: var(--ink-soft); }

/* ---------- Compliance ---------- */
.compliance-grid{
  margin-top:52px;
  display:grid; grid-template-columns: repeat(2, 1fr); gap:1.5rem;
}
.compliance-card{
  background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg);
  padding: 2rem;
}
.compliance-card h3{ color: var(--navy); font-size:1.15rem; margin-bottom:.75rem; }
.compliance-card p{ color: var(--ink-soft); font-size:.96rem; }
.closing-note{
  margin-top: 3rem; text-align:center; font-size:1.15rem; font-weight:700; color: var(--navy);
  max-width: 640px; margin-left:auto; margin-right:auto;
}

/* ---------- Solutions / audience ---------- */
.audience-grid{
  margin-top:52px;
  display:grid; grid-template-columns: repeat(3, 1fr); gap:1.5rem;
}
.audience-card{
  border-top: 4px solid var(--orange);
  background: var(--navy-tint);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 2rem 1.75rem;
}
.audience-tag{
  display:inline-block; font-weight:800; color: var(--navy); font-size:1.05rem; margin-bottom: 1rem;
}
.audience-card p{ color: var(--ink-soft); font-size:.96rem; }

/* ---------- Pricing ---------- */
.pricing-grid{
  margin-top: 52px;
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem;
  align-items: stretch;
}
.price-card{
  position:relative;
  background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  display:flex; flex-direction:column;
  box-shadow: var(--shadow-sm);
}
.price-card--featured{
  border-color: var(--orange);
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}
.price-badge{
  position:absolute; top:-14px; left:50%; transform:translateX(-50%);
  background: var(--orange); color:#fff; font-size:.75rem; font-weight:800;
  padding: .3rem .9rem; border-radius:999px; letter-spacing:.03em;
}
.price-card h3{ font-size:1.15rem; color: var(--navy); margin-bottom: .9rem; }
.price{ font-size:1.9rem; font-weight:800; color: var(--ink); margin-bottom:.5rem; }
.price span{ color: var(--navy); }
.price-desc{ color: var(--ink-soft); font-size:.9rem; margin-bottom: 1.5rem; }
.price-features{ margin-bottom: 2rem; flex:1; }
.price-features li{
  font-size:.92rem; color: var(--ink-soft); padding: .5rem 0 .5rem 1.6rem; position:relative;
  border-bottom: 1px solid var(--line);
}
.price-features li::before{
  content:"✓"; position:absolute; left:0; color: var(--ok); font-weight:800;
}
.price-features li:last-child{ border-bottom:none; }
.pricing-footnote{ text-align:center; margin-top: 2.5rem; color: var(--ink-soft); font-size:.92rem; }

/* ---------- About / team ---------- */
.about-subhead{ font-size:1.15rem; color: var(--navy); margin-top: 2rem; margin-bottom: .75rem; }
.team-grid{
  margin-top: 52px;
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem;
}
.team-card{
  text-align:center; background:#fff; border:1px solid var(--line);
  border-radius: var(--radius-lg); padding: 2rem 1.5rem;
}
.team-avatar{
  width:64px; height:64px; border-radius:50%;
  background: var(--navy); color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:1.05rem;
  margin: 0 auto 1.1rem;
}
.team-card h4{ font-size:1.05rem; margin-bottom:.25rem; }
.team-role{ color: var(--orange); font-weight:700; font-size:.85rem; margin-bottom:.85rem; }
.team-card p:not(.team-role){ color: var(--ink-soft); font-size:.9rem; }

/* ---------- Beta program ---------- */
.beta{ background: linear-gradient(180deg, var(--navy-dark), var(--navy)); color:#fff; }
.beta-intro{ text-align:center; }
.beta-intro h2{ color:#fff; }
.beta-layout{
  margin-top: 56px;
  display:grid; grid-template-columns: 1fr 1.3fr; gap: 3rem;
  align-items:start;
}
.beta-details{ display:flex; flex-direction:column; gap: 2rem; padding-top: .5rem; }
.beta-col h3{ font-size:1.1rem; margin-bottom: 1rem; }
.check-list li{
  position:relative; padding-left: 1.7rem; margin-bottom:.85rem;
  color: rgba(255,255,255,.82); font-size:.95rem;
}
.check-list li::before{
  content:""; position:absolute; left:0; top:.3em; width:16px; height:16px;
  border-radius:50%; background: var(--orange);
}
.check-list li::after{
  content:""; position:absolute; left:5px; top:.55em; width:6px; height:3px;
  border-left:2px solid #fff; border-bottom:2px solid #fff; transform: rotate(-45deg);
}

.beta-form{
  background:#fff; color: var(--ink);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}
.beta-form h3{ color: var(--navy); font-size:1.3rem; margin-bottom:.4rem; }
.form-subhead{ color: var(--ink-soft); font-size:.92rem; margin-bottom: 1.75rem; }
.form-row{ margin-bottom: 1.25rem; border:none; padding:0; }
.form-row label, .form-row legend{
  display:block; font-size:.85rem; font-weight:700; margin-bottom:.4rem; color: var(--ink);
  padding:0;
}
.form-row input, .form-row select, .form-row textarea{
  width:100%; padding: .75rem .9rem; border:1.5px solid var(--line); border-radius:8px;
  font-family: inherit; font-size:.95rem; color: var(--ink); background:#fff;
  transition: border-color .15s ease;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{
  outline:none; border-color: var(--navy);
}
.form-row--split{ display:grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom:1.25rem; }
.form-row--split .form-row{ margin-bottom:0; }
.checkbox-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: .6rem .5rem; }
.checkbox{ display:flex; align-items:center; gap:.5rem; font-size:.88rem; font-weight:500; color: var(--ink-soft); }
.checkbox input{ width:16px; height:16px; accent-color: var(--orange); flex-shrink:0; }
.form-privacy{ font-size:.78rem; color: var(--ink-soft); text-align:center; margin-top: 1rem; }
.form-success{
  margin-top: 1rem; text-align:center; font-weight:700; color: var(--ok);
  background: rgba(31,157,85,.1); padding: .85rem; border-radius: 8px;
}

/* ---------- Contact ---------- */
.contact-email{
  display:inline-block; margin-top: 1.5rem; font-size:1.3rem; font-weight:800;
  color: var(--navy); border-bottom: 2px solid var(--orange); padding-bottom:.2rem;
}
.contact-email:hover{ color: var(--orange); }

/* ---------- Footer ---------- */
.site-footer{ background: var(--navy-dark); color: rgba(255,255,255,.7); padding: 56px 0 0; }
.footer-inner{
  display:flex; justify-content:space-between; gap: 2rem; flex-wrap:wrap;
  padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-text{ color:#fff; }
.footer-brand p{ margin-top:.6rem; font-size:.88rem; max-width:260px; }
.footer-nav{ display:flex; flex-wrap:wrap; gap: .5rem 1.5rem; }
.footer-nav a{ font-size:.9rem; }
.footer-nav a:hover{ color:#fff; }
.footer-legal{ display:flex; gap: 1.25rem; }
.footer-legal a{ font-size:.85rem; }
.footer-legal a:hover{ color:#fff; }
.footer-bottom{ padding: 1.5rem 0; text-align:center; font-size:.8rem; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px){
  .main-nav{ display:none; }
  .header-cta{ display:none; }
  .nav-toggle{
    display:flex; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px;
    margin-left:auto;
  }
  .nav-toggle span{ width:22px; height:2px; background: var(--navy); border-radius:2px; }

  .site-header.nav-open .main-nav{
    display:flex; position:absolute; top:72px; left:0; right:0;
    background:#fff; flex-direction:column; align-items:flex-start; gap:0;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md);
  }
  .site-header.nav-open .main-nav a{ width:100%; padding: 14px 24px; border-bottom: 1px solid var(--line); }
  .site-header.nav-open .main-nav a.nav-cta-mobile{
    display:block; color: var(--orange); font-weight:800;
  }

  .stat-strip{ grid-template-columns: repeat(2, 1fr); }
  .feature-grid, .detail-grid, .compliance-grid, .audience-grid, .pricing-grid, .team-grid{
    grid-template-columns: 1fr;
  }
  .price-card--featured{ transform:none; }
  .beta-layout{ grid-template-columns: 1fr; }
  .trust-inner{ flex-direction:column; align-items:flex-start; }
}

@media (max-width: 560px){
  .section{ padding: 64px 0; }
  .hero{ padding: 72px 0 56px; }
  .form-row--split, .checkbox-grid{ grid-template-columns: 1fr; }
  .beta-form{ padding: 1.75rem 1.25rem; }
  .footer-inner{ flex-direction:column; }
}