/* ==========================================================================
   Binary Horizon Solutions LLC — shared stylesheet
   Palette: deep circuit navy, signal teal, security violet, warning amber
   Type: Space Grotesk (display) / Inter (body) / JetBrains Mono (utility)
   ========================================================================== */

:root{
  --ink:#0B1420;
  --ink-deep:#060A12;
  --panel:#101C2C;
  --panel-line:rgba(255,255,255,0.09);
  --paper:#EEF2F7;
  --paper-alt:#F7F9FC;
  --cloud:#FFFFFF;
  --text-soft:#AEBBCB;
  --text-dim:#7C8AA0;
  --teal:#35D0BA;
  --teal-deep:#1EA890;
  --violet:#8B7CF6;
  --amber:#F2B84B;
  --line:rgba(11,20,32,0.12);
  --line-soft:rgba(11,20,32,0.07);
  --shadow:0 24px 54px rgba(6,10,18,0.14);
  --radius:6px;
  --radius-lg:20px;
  --maxw:1200px;
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *, *::before, *::after{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; }
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter', sans-serif;
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ font-family:'Space Grotesk', sans-serif; font-weight:600; line-height:1.15; margin:0; color:var(--ink); letter-spacing:-0.01em; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }
code, .mono{ font-family:'JetBrains Mono', monospace; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 28px; }

.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:'JetBrains Mono', monospace;
  font-size:12px; letter-spacing:0.14em; text-transform:uppercase;
  color:var(--teal-deep);
}
.eyebrow::before{ content:"//"; color:var(--violet); font-weight:700; }
.section-deep .eyebrow{ color:var(--teal); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 26px;
  border-radius:3px;
  font-family:'JetBrains Mono', monospace;
  font-size:13px; letter-spacing:0.03em;
  border:1px solid transparent;
  transition:transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.btn-primary{ background:var(--teal); color:var(--ink-deep); font-weight:600; }
.btn-primary:hover{ background:var(--violet); color:#fff; transform:translateY(-2px); }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn-ghost:hover{ border-color:var(--ink); transform:translateY(-2px); }
.btn-ghost-dark{ background:transparent; color:#fff; border-color:rgba(255,255,255,0.28); }
.btn-ghost-dark:hover{ border-color:#fff; transform:translateY(-2px); }
.btn-light{ background:#fff; color:var(--ink); }
.btn-light:hover{ background:var(--amber); transform:translateY(-2px); }
.btn-block{ width:100%; justify-content:center; }
.btn:focus-visible{ outline:2px solid var(--violet); outline-offset:3px; }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(238,242,247,0.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 28px;
  max-width:var(--maxw); margin:0 auto;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{ width:40px; height:40px; flex-shrink:0; }
.brand-word{ font-family:'Space Grotesk', sans-serif; font-size:18px; font-weight:600; }
.brand-word b{ color:var(--teal-deep); font-weight:700; }
.brand-sub{
  display:block; font-family:'JetBrains Mono', monospace; font-size:10px;
  letter-spacing:0.12em; text-transform:uppercase; color:var(--text-dim); margin-top:1px;
}

.main-nav{ display:flex; align-items:center; gap:32px; }
.main-nav a{
  font-family:'JetBrains Mono', monospace; font-size:12.5px; letter-spacing:0.03em;
  color:var(--text-dim); position:relative; padding:4px 0;
}
.main-nav a::after{
  content:""; position:absolute; left:0; right:0; bottom:-3px; height:2px; background:var(--teal);
  transform:scaleX(0); transform-origin:left; transition:transform .25s ease;
}
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after{ transform:scaleX(1); }
.main-nav a[aria-current="page"]{ color:var(--ink); }

.header-cta{ display:flex; align-items:center; gap:16px; }
.header-cta .btn{ padding:11px 20px; }

.nav-toggle{ display:none; background:none; border:none; width:34px; height:34px; position:relative; }
.nav-toggle span{ position:absolute; left:6px; right:6px; height:2px; background:var(--ink); transition:transform .2s ease, opacity .2s ease; }
.nav-toggle span:nth-child(1){ top:11px; }
.nav-toggle span:nth-child(2){ top:17px; }
.nav-toggle span:nth-child(3){ top:23px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* ---------- circuit signature element ---------- */
.circuit{
  position:relative; background:var(--ink-deep); border-radius:var(--radius-lg);
  padding:36px; box-shadow:var(--shadow); overflow:hidden;
}
.circuit svg{ width:100%; height:auto; display:block; }
.circuit-caption{
  display:flex; justify-content:space-between; margin-top:22px;
  font-family:'JetBrains Mono', monospace; font-size:11px; letter-spacing:0.06em;
  color:var(--text-dim); text-transform:uppercase;
}
.circuit-caption b{ color:var(--teal); font-weight:500; }

/* ---------- hero ---------- */
.hero{ padding:60px 0 88px; }
.hero-grid{ display:grid; grid-template-columns:1.05fr 0.95fr; gap:60px; align-items:center; }
.hero h1{ font-size:clamp(36px,4.8vw,56px); margin:18px 0 22px; }
.hero h1 span{ color:var(--teal-deep); }
.hero-lede{ font-size:18px; color:var(--text-dim); max-width:48ch; margin-bottom:32px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom:38px; }
.hero-stats{ display:flex; gap:34px; flex-wrap:wrap; }
.hero-stats div{ font-family:'JetBrains Mono', monospace; }
.hero-stats b{ display:block; font-family:'Space Grotesk', sans-serif; font-size:26px; color:var(--ink); font-weight:700; }
.hero-stats span{ font-size:11px; letter-spacing:0.06em; text-transform:uppercase; color:var(--text-dim); }

/* ---------- section shell ---------- */
.section{ padding:88px 0; }
.section-alt{ background:var(--cloud); }
.section-deep{ background:var(--ink); color:#fff; }
.section-deep h2, .section-deep h3{ color:#fff; }
.section-deep p{ color:var(--text-soft); }
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head h2{ font-size:clamp(28px,3.4vw,40px); margin-top:16px; }
.section-head p{ color:var(--text-dim); margin-top:16px; font-size:17px; }
.section-deep .section-head p{ color:var(--text-soft); }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- feature grid (home) ---------- */
.feature-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.feature-card{ background:var(--cloud); border:1px solid var(--line-soft); border-radius:var(--radius-lg); padding:36px 32px; box-shadow:var(--shadow); }
.feature-icon{ width:46px; height:46px; border-radius:10px; background:var(--ink); display:flex; align-items:center; justify-content:center; margin-bottom:22px; }
.feature-icon svg{ width:22px; height:22px; stroke:var(--teal); }
.feature-card h3{ font-size:19px; margin-bottom:10px; }
.feature-card p{ color:var(--text-dim); font-size:15px; }

/* ---------- split (about) ---------- */
.split{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:70px; align-items:center; }
.split-reverse{ grid-template-columns:1.1fr 0.9fr; }
.split-reverse .split-media{ order:2; }
.check-list{ margin-top:26px; display:grid; gap:14px; }
.check-list li{ display:flex; gap:12px; align-items:flex-start; color:var(--text-dim); font-size:15.5px; }
.check-list li::before{ content:"›"; flex-shrink:0; color:var(--teal-deep); font-family:'JetBrains Mono', monospace; font-weight:700; font-size:18px; line-height:1.3; }
.split-media{
  background:linear-gradient(150deg,var(--ink),var(--ink-deep));
  border-radius:var(--radius-lg); aspect-ratio:4/3.3; position:relative; overflow:hidden;
  display:flex; align-items:flex-end; box-shadow:var(--shadow);
}
.split-media .tag{
  margin:20px; padding:8px 12px; background:rgba(255,255,255,0.08); border:1px solid var(--panel-line); color:#fff;
  font-family:'JetBrains Mono', monospace; font-size:11px; letter-spacing:0.06em; border-radius:2px;
}

/* ---------- services grid ---------- */
.services-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:2px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius-lg); overflow:hidden; }
.service-card{ background:var(--paper-alt); padding:38px 32px; transition:background .2s ease; }
.service-card:hover{ background:var(--cloud); }
.service-index{ font-family:'JetBrains Mono', monospace; font-size:12px; color:var(--violet); letter-spacing:0.06em; margin-bottom:22px; display:block; }
.service-card h3{ font-size:20px; margin-bottom:10px; }
.service-card p{ color:var(--text-dim); font-size:15px; margin-bottom:16px; }
.service-card a{ font-family:'JetBrains Mono', monospace; font-size:12.5px; color:var(--teal-deep); }
.service-card a:hover{ color:var(--violet); }

/* ---------- process / timeline ---------- */
.timeline{ position:relative; margin-top:10px; }
.timeline::before{ content:""; position:absolute; left:14px; top:6px; bottom:6px; width:1px; background:var(--panel-line); }
.timeline-item{ position:relative; padding-left:52px; padding-bottom:44px; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-item::before{ content:""; position:absolute; left:8px; top:4px; width:13px; height:13px; border-radius:50%; background:var(--ink); border:2px solid var(--teal); }
.timeline-year{ font-family:'JetBrains Mono', monospace; font-size:12px; letter-spacing:0.06em; color:var(--teal); text-transform:uppercase; }
.timeline-item h3{ font-size:21px; margin:8px 0 8px; }
.timeline-item p{ color:var(--text-soft); max-width:60ch; }

/* ---------- pricing ---------- */
.pricing-toggle{ display:flex; justify-content:center; align-items:center; gap:16px; margin-bottom:54px; font-family:'JetBrains Mono', monospace; font-size:13px; }
.pricing-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; align-items:stretch; }
.price-card{
  background:var(--cloud); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:38px 32px; display:flex; flex-direction:column; position:relative;
}
.price-card.is-popular{ border-color:var(--teal-deep); box-shadow:var(--shadow); transform:translateY(-10px); }
.price-badge{
  position:absolute; top:-13px; left:32px; background:var(--teal); color:var(--ink-deep);
  font-family:'JetBrains Mono', monospace; font-size:11px; letter-spacing:0.06em; text-transform:uppercase;
  padding:5px 12px; border-radius:2px; font-weight:600;
}
.price-name{ font-family:'JetBrains Mono', monospace; font-size:12.5px; letter-spacing:0.08em; text-transform:uppercase; color:var(--text-dim); margin-bottom:14px; }
.price-amount{ font-family:'Space Grotesk', sans-serif; font-size:42px; font-weight:700; margin-bottom:4px; }
.price-amount span{ font-family:'JetBrains Mono', monospace; font-size:14px; font-weight:400; color:var(--text-dim); }
.price-desc{ color:var(--text-dim); font-size:14.5px; margin-bottom:26px; padding-bottom:26px; border-bottom:1px solid var(--line-soft); }
.price-features{ display:grid; gap:13px; margin-bottom:30px; flex-grow:1; }
.price-features li{ display:flex; gap:10px; align-items:flex-start; font-size:14.5px; color:var(--ink); }
.price-features li::before{ content:"✓"; color:var(--teal-deep); font-weight:700; flex-shrink:0; }
.price-features li.muted{ color:var(--text-dim); }
.price-features li.muted::before{ content:"–"; color:var(--text-dim); }

/* dark pricing cards (homepage teaser, section-deep) need their own text colors,
   since ".price-features li" above is more specific than an inherited color
   from the parent and would otherwise win and render dark text on a dark card */
.section-deep .price-card{ color:#fff; }
.section-deep .price-name{ color:var(--text-soft); }
.section-deep .price-amount{ color:#fff; }
.section-deep .price-amount span{ color:var(--text-soft); }
.section-deep .price-desc{ color:var(--text-soft); border-color:var(--panel-line); }
.section-deep .price-features li{ color:#fff; }
.section-deep .price-features li.muted{ color:var(--text-soft); }
.section-deep .price-features li.muted::before{ color:var(--text-soft); }

.pricing-table-wrap{ overflow-x:auto; border-radius:var(--radius-lg); border:1px solid var(--line); }
table.pricing-table{ width:100%; border-collapse:collapse; background:var(--cloud); min-width:640px; }
table.pricing-table th, table.pricing-table td{ padding:16px 22px; text-align:left; border-bottom:1px solid var(--line-soft); font-size:14.5px; }
table.pricing-table th{ font-family:'JetBrains Mono', monospace; font-size:12px; letter-spacing:0.05em; text-transform:uppercase; color:var(--text-dim); background:var(--paper-alt); }
table.pricing-table td:first-child{ font-weight:600; }
table.pricing-table tr:last-child td{ border-bottom:none; }

/* ---------- testimonials ---------- */
.quote-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:2px; background:var(--panel-line); border:1px solid var(--panel-line); border-radius:var(--radius-lg); overflow:hidden; }
.quote-card{ background:var(--panel); padding:34px 30px; }
.quote-card p{ font-size:16px; line-height:1.6; margin-bottom:18px; color:#fff; }
.quote-who{ font-family:'JetBrains Mono', monospace; font-size:11.5px; letter-spacing:0.04em; color:var(--text-dim); text-transform:uppercase; }

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--radius-lg); background:linear-gradient(120deg,var(--ink),#182B45);
  color:#fff; padding:56px 54px; display:flex; align-items:center; justify-content:space-between; gap:30px; flex-wrap:wrap;
}
.cta-band h2{ color:#fff; font-size:clamp(24px,3vw,32px); max-width:520px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--ink-deep); color:var(--text-soft); padding:70px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:48px; margin-bottom:56px; }
.footer-brand .brand-word{ color:#fff; }
.footer-brand p{ color:var(--text-dim); margin-top:16px; max-width:34ch; font-size:14.5px; }
.footer-col h4{ font-family:'JetBrains Mono', monospace; font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase; color:var(--teal); margin-bottom:18px; font-weight:500; }
.footer-col ul{ display:grid; gap:11px; }
.footer-col a, .footer-col span{ color:var(--text-dim); font-size:14.5px; }
.footer-col a:hover{ color:#fff; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,0.08); padding-top:24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-family:'JetBrains Mono', monospace; font-size:12px; color:var(--text-dim); }

/* ---------- page header (inner pages) ---------- */
.page-hero{ padding:56px 0 52px; border-bottom:1px solid var(--line-soft); }
.page-hero h1{ font-size:clamp(32px,4.2vw,46px); margin-top:16px; max-width:22ch; }
.page-hero p{ color:var(--text-dim); font-size:17px; max-width:58ch; margin-top:16px; }
.crumbs{ font-family:'JetBrains Mono', monospace; font-size:11.5px; letter-spacing:0.05em; color:var(--text-dim); }
.crumbs a{ color:var(--teal-deep); }

/* ---------- contact page ---------- */
.contact-grid{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:64px; align-items:start; }
.field{ margin-bottom:20px; }
.field label{ display:block; font-family:'JetBrains Mono', monospace; font-size:11.5px; letter-spacing:0.05em; text-transform:uppercase; color:var(--text-dim); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; padding:13px 15px; border:1px solid var(--line); border-radius:4px;
  background:var(--cloud); font-family:'Inter', sans-serif; font-size:15px; color:var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--teal-deep); box-shadow:0 0 0 3px rgba(30,168,144,0.15); }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-note{ font-size:13px; color:var(--text-dim); margin-top:6px; }
.info-card{ background:var(--cloud); border:1px solid var(--line-soft); border-radius:var(--radius-lg); padding:32px; margin-bottom:18px; box-shadow:var(--shadow); }
.info-card h3{ font-size:14.5px; font-family:'JetBrains Mono', monospace; letter-spacing:0.05em; text-transform:uppercase; margin-bottom:14px; color:var(--teal-deep); }
.info-line{ display:flex; gap:12px; margin-bottom:12px; align-items:flex-start; }
.info-line:last-child{ margin-bottom:0; }
.info-line .ic{ width:18px; height:18px; flex-shrink:0; margin-top:2px; color:var(--violet); }
.info-line a, .info-line span{ color:var(--text-dim); font-size:14.5px; line-height:1.5; }
.info-line a:hover{ color:var(--teal-deep); }

/* ---------- FAQ ---------- */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{ width:100%; display:flex; justify-content:space-between; align-items:center; gap:20px; background:none; border:none; text-align:left; padding:22px 2px; font-family:'Space Grotesk', sans-serif; font-weight:500; font-size:17px; color:var(--ink); }
.faq-q .plus{ flex-shrink:0; width:20px; height:20px; position:relative; }
.faq-q .plus::before, .faq-q .plus::after{ content:""; position:absolute; background:var(--teal-deep); transition:transform .2s ease; }
.faq-q .plus::before{ left:0; right:0; top:9px; height:2px; }
.faq-q .plus::after{ top:0; bottom:0; left:9px; width:2px; }
.faq-item[data-open="true"] .plus::after{ transform:rotate(90deg); opacity:0; }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .3s ease; }
.faq-a p{ color:var(--text-dim); padding:0 2px 24px; max-width:66ch; }
.faq-item[data-open="true"] .faq-a{ max-height:400px; }

/* ---------- legal pages ---------- */
.legal{ padding:64px 0 96px; }
.legal .wrap{ max-width:820px; }
.legal h2{ font-size:22px; margin:44px 0 14px; }
.legal h2:first-of-type{ margin-top:8px; }
.legal p, .legal li{ color:var(--text-dim); font-size:15.5px; margin-bottom:14px; }
.legal ul{ padding-left:22px; list-style:disc; }
.legal li{ margin-bottom:8px; }
.legal-updated{ font-family:'JetBrains Mono', monospace; font-size:12px; letter-spacing:0.05em; text-transform:uppercase; color:var(--text-dim); margin-bottom:26px; display:block; }

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero-grid, .split, .split-reverse{ grid-template-columns:1fr; }
  .split-reverse .split-media{ order:0; }
  .services-grid, .quote-row, .feature-grid, .pricing-grid{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .price-card.is-popular{ transform:none; }
}
@media (max-width:760px){
  .main-nav{ position:absolute; top:100%; left:0; right:0; background:var(--paper); flex-direction:column; align-items:flex-start; gap:2px; padding:10px 28px 22px; border-bottom:1px solid var(--line-soft); display:none; }
  .main-nav.open{ display:flex; }
  .main-nav a{ padding:12px 0; width:100%; }
  .nav-toggle{ display:block; }
  .header-cta .btn-ghost{ display:none; }
  .services-grid, .quote-row, .feature-grid, .pricing-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
  .field-row{ grid-template-columns:1fr; }
  .cta-band{ padding:40px 28px; }
}