/* ==========================================================================
   Crux — shared design system
   ========================================================================== */

:root{
  /* brand — dark theme throughout */
  --ink:#f3f4f7;
  --ink-soft:#a7adbb;
  --ink-faint:#767c8c;
  --line:#262b38;
  --paper:#0a0c11;
  --canvas:#12151d;
  --canvas-deep:#1c202b;
  --void:#000000;

  --accent:#2b5fd9;
  --accent-dark:#1c3f99;
  --accent-soft:#15213f;
  --accent-line:#33488a;

  --green:#34c281;
  --green-soft:#123423;
  --amber:#eab155;
  --amber-soft:#332612;

  /* dark surfaces — aliased to the base palette above, kept for components
     that were already written against the dark-* names */
  --dark-bg:var(--paper);
  --dark-panel:var(--canvas);
  --dark-panel-2:var(--canvas-deep);
  --dark-line:var(--line);
  --dark-ink:var(--ink);
  --dark-ink-soft:var(--ink-soft);
  --accent-glow:#5b8bf0;

  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;

  --serif:"Fraunces","Iowan Old Style",Georgia,serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;

  --shadow-sm:0 1px 2px rgba(0,0,0,0.35);
  --shadow:0 8px 30px rgba(0,0,0,0.45);
  --shadow-lg:0 20px 60px rgba(0,0,0,0.55);
}

*,*::before,*::after{box-sizing:border-box;}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;}
h1,h2,h3,h4,h5{font-family:var(--serif);font-weight:600;line-height:1.15;margin:0;}
p{margin:0;}

.wrap{
  max-width:1160px;
  margin:0 auto;
  padding:0 32px;
}

.eyebrow{
  font-family:var(--sans);
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:0.14em;
  font-weight:700;
  color:var(--accent-glow);
}
.eyebrow.on-dark{color:var(--accent-glow);}

.section-lede{
  font-size:17px;
  color:var(--ink-soft);
  max-width:620px;
  margin:14px 0 0;
}

section{padding:96px 0;}
section.tight{padding:64px 0;}
section.canvas{background:var(--canvas);}
section.dark{background:var(--dark-bg);color:var(--dark-ink);}
section.ink{background:var(--void);color:#fff;}
.border-top{border-top:1px solid var(--line);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 24px;
  border-radius:999px;
  font-weight:600;
  font-size:14.5px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-outline:hover{border-color:var(--ink);}
.btn-outline.on-dark{border-color:var(--dark-line);color:var(--dark-ink);}
.btn-outline.on-dark:hover{border-color:var(--dark-ink);}
.btn-ghost{background:transparent;color:var(--accent-glow);padding-left:0;padding-right:0;}
.btn-ghost:hover{color:#fff;}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.btn svg{width:15px;height:15px;}

/* ---------- nav ---------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.site-nav.on-dark-page{
  background:#0a0c11;
  border-bottom:1px solid var(--dark-line);
}
.nav-inner{
  max-width:1160px;
  margin:0 auto;
  padding:0 32px;
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  font-family:var(--sans);
  font-weight:800;
  font-size:19px;
  letter-spacing:0.02em;
  display:flex;
  align-items:center;
  gap:2px;
}
.site-nav.on-dark-page .brand{color:var(--dark-ink);}
.brand .dot{color:var(--accent-glow);}
.nav-links{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-links a{
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-soft);
  transition:color .15s ease;
}
.site-nav.on-dark-page .nav-links a{color:var(--dark-ink-soft);}
.nav-links a:hover{color:var(--ink);}
.site-nav.on-dark-page .nav-links a:hover{color:#fff;}
.nav-links a.active{color:var(--ink);font-weight:600;}
.site-nav.on-dark-page .nav-links a.active{color:#fff;}
.nav-cta{display:flex;align-items:center;gap:22px;}
.nav-toggle{
  display:none;
  width:38px;height:38px;
  border-radius:8px;
  border:1px solid var(--line);
  background:transparent;
  align-items:center;
  justify-content:center;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";
  display:block;
  width:18px;height:2px;
  background:var(--ink);
  position:relative;
  transition:.2s ease;
}
.site-nav.on-dark-page .nav-toggle span,
.site-nav.on-dark-page .nav-toggle span::before,
.site-nav.on-dark-page .nav-toggle span::after{background:var(--dark-ink);}
.nav-toggle span::before{position:absolute;top:-6px;}
.nav-toggle span::after{position:absolute;top:6px;}
.mobile-panel{display:none;}

@media (max-width:860px){
  .nav-links{
    position:fixed;
    inset:76px 0 0 0;
    background:var(--paper);
    flex-direction:column;
    align-items:flex-start;
    padding:28px 32px;
    gap:22px;
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:.18s ease;
    border-top:1px solid var(--line);
  }
  .site-nav.on-dark-page .nav-links{background:var(--dark-bg);border-top:1px solid var(--dark-line);}
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-links a{font-size:17px;}
  .nav-cta .btn-outline{display:none;}
  .nav-toggle{display:flex;}
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:76px 0 90px;
  overflow:hidden;
  background:
    radial-gradient(680px 420px at 82% -10%, rgba(91,139,240,0.25), transparent 60%),
    radial-gradient(500px 300px at 8% 110%, rgba(43,95,217,0.18), transparent 60%),
    var(--dark-bg);
}
.hero-grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 20%, #000 40%, transparent 90%);
}
.hero-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:56px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:11.5px;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--accent-glow);
  background:rgba(91,139,240,0.1);
  border:1px solid rgba(91,139,240,0.28);
  padding:7px 14px;
  border-radius:999px;
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(34px,4.6vw,56px);
  color:#fff;
  letter-spacing:-0.01em;
}
.hero h1 em{color:var(--accent-glow);font-style:italic;}
.hero-sub{
  font-size:17.5px;
  color:var(--dark-ink-soft);
  max-width:520px;
  margin:22px 0 34px;
}
.positioning-quote{
  margin-top:40px;
  padding:20px 22px;
  border-left:2px solid var(--accent-glow);
  background:rgba(255,255,255,0.03);
  border-radius:0 10px 10px 0;
  font-family:var(--serif);
  font-size:16.5px;
  font-style:italic;
  color:#e8eaf0;
  max-width:560px;
}

/* loop visual */
.loop-visual{
  position:relative;
  min-height:440px;
}
.loop-card{
  position:absolute;
  width:172px;
  padding:16px 16px 15px;
  background:var(--dark-panel);
  border:1px solid var(--dark-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
}
.loop-card .num{
  font-family:var(--sans);
  font-size:11px;
  font-weight:800;
  letter-spacing:0.08em;
  color:var(--accent-glow);
  margin-bottom:6px;
}
.loop-card h4{
  color:#fff;
  font-size:18px;
  margin-bottom:6px;
}
.loop-card p{
  font-size:12.5px;
  color:var(--dark-ink-soft);
  line-height:1.5;
}
.loop-card.c1{top:0;left:6%;}
.loop-card.c2{top:6%;right:0;}
.loop-card.c3{bottom:6%;left:0;}
.loop-card.c4{bottom:0;right:6%;}
.loop-center{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:118px;height:118px;
  border-radius:50%;
  background:radial-gradient(circle at 35% 30%, #3a68d8, #16234f 75%);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-family:var(--sans);
  font-size:11px;
  font-weight:700;
  letter-spacing:0.05em;
  text-transform:uppercase;
  color:#dbe3fb;
  box-shadow:0 0 0 1px rgba(91,139,240,0.35), 0 0 60px rgba(59,102,214,0.45);
  animation:pulse 3.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 1px rgba(91,139,240,0.35),0 0 40px rgba(59,102,214,0.35);}
  50%{box-shadow:0 0 0 1px rgba(91,139,240,0.5),0 0 70px rgba(59,102,214,0.6);}
}
.loop-svg{position:absolute;inset:0;width:100%;height:100%;}
.loop-svg path{
  fill:none;
  stroke:rgba(91,139,240,0.35);
  stroke-width:1.4;
  stroke-dasharray:5 6;
  animation:dash 22s linear infinite;
}
@keyframes dash{to{stroke-dashoffset:-400;}}

@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr;}
  .loop-visual{min-height:380px;max-width:460px;margin:0 auto;}
}
@media (max-width:560px){
  .loop-card{width:132px;padding:12px;}
  .loop-card h4{font-size:15px;}
  .loop-card p{display:none;}
  .loop-center{width:96px;height:96px;font-size:10px;}
}

/* ---------- stat row ---------- */
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--dark-line);
  margin-top:64px;
}
.stat{padding:26px 28px 0;}
.stat .stat-num{font-family:var(--serif);font-size:26px;color:#fff;margin-bottom:4px;}
.stat .stat-label{font-size:13px;color:var(--dark-ink-soft);}
@media (max-width:700px){.stat-row{grid-template-columns:1fr;}.stat{border-top:1px solid var(--dark-line);padding-top:18px;margin-top:18px;}}

/* ---------- section headers ---------- */
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:40px;
  margin-bottom:44px;
  flex-wrap:wrap;
}
.section-head h2{font-size:clamp(26px,3.2vw,38px);margin-top:10px;}

/* ---------- ICP cards ---------- */
.icp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.icp-card{
  background:var(--canvas-deep);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px;
  transition:.18s ease;
}
.icp-card:hover{border-color:var(--accent-line);box-shadow:var(--shadow);transform:translateY(-2px);}
.icp-card .icp-label{
  display:inline-block;
  font-size:11px;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--accent-glow);
  background:var(--accent-soft);
  padding:4px 10px;
  border-radius:999px;
  margin-bottom:14px;
}
.icp-card h3{font-size:20px;margin-bottom:10px;}
.icp-card p{font-size:14.5px;color:var(--ink-soft);}
@media (max-width:900px){.icp-grid{grid-template-columns:1fr;}}

.callout{
  background:var(--accent-soft);
  border:1px solid var(--accent-line);
  border-radius:var(--radius);
  padding:22px 26px;
  font-size:14.5px;
  color:#cfe0ff;
  margin-top:28px;
}
.callout strong{color:var(--ink);}

/* ---------- feature / value grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.feature-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px;
  background:var(--canvas-deep);
}
.feature-card .fi{
  width:42px;height:42px;
  border-radius:10px;
  background:var(--accent-soft);
  color:var(--accent-glow);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.feature-card .fi svg{width:20px;height:20px;}
.feature-card h3{font-size:18px;margin-bottom:8px;}
.feature-card p{font-size:14px;color:var(--ink-soft);}
@media (max-width:900px){.feature-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:640px){.feature-grid{grid-template-columns:1fr;}}

/* ---------- process timeline ---------- */
.process-list{display:flex;flex-direction:column;}
.process-row{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:28px;
  padding:36px 0;
  border-top:1px solid var(--line);
}
.process-row:last-child{border-bottom:1px solid var(--line);}
.process-num{
  font-family:var(--serif);
  font-size:30px;
  color:var(--accent-line);
}
.process-row h3{font-size:23px;margin-bottom:10px;}
.process-row .role-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}
.role-tag{
  font-size:12px;
  font-weight:600;
  padding:5px 11px;
  border-radius:999px;
  background:var(--canvas-deep);
  color:var(--ink-soft);
}
.process-row p.body{font-size:15px;color:var(--ink-soft);max-width:640px;}
@media (max-width:640px){.process-row{grid-template-columns:1fr;gap:8px;}}

/* ---------- track split ---------- */
.split-note{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.split-note .panel{
  background:var(--canvas-deep);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
}
.split-note .panel .tag{
  font-size:11px;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:var(--accent-glow);margin-bottom:10px;display:block;
}
.split-note .panel h4{font-size:19px;margin-bottom:10px;}
.split-note .panel p{font-size:14.5px;color:var(--ink-soft);}
@media (max-width:720px){.split-note{grid-template-columns:1fr;}}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--radius-lg);
  background:var(--void);
  border:1px solid var(--line);
  padding:56px 56px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:32px;
  flex-wrap:wrap;
  color:#fff;
}
.cta-band h2{font-size:clamp(24px,3vw,32px);color:#fff;max-width:480px;}
.cta-band p{color:var(--dark-ink-soft);margin-top:10px;font-size:15px;max-width:440px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 0;
  background:none;
  border:none;
  text-align:left;
  font-family:var(--serif);
  font-size:18px;
  color:var(--ink);
  cursor:pointer;
}
.faq-q .plus{
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  position:relative;
  transition:.2s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";
  position:absolute;
  background:var(--ink);
}
.faq-q .plus::before{width:10px;height:1.4px;}
.faq-q .plus::after{width:1.4px;height:10px;}
.faq-item.open .faq-q .plus{transform:rotate(135deg);background:var(--accent);border-color:var(--accent);}
.faq-item.open .faq-q .plus::before,.faq-item.open .faq-q .plus::after{background:#fff;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a-inner{padding:0 0 24px;font-size:15px;color:var(--ink-soft);max-width:660px;}
.faq-item.open .faq-a{max-height:400px;}

/* ---------- case study ---------- */
.pilot-banner{
  border:1px dashed var(--accent-line);
  background:var(--accent-soft);
  border-radius:var(--radius);
  padding:30px 30px;
  display:flex;
  gap:24px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
}
.pilot-banner h3{font-size:20px;margin-bottom:6px;}
.pilot-banner p{font-size:14.5px;color:#cfe0ff;max-width:520px;}

.case-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px;
  background:var(--canvas-deep);
}
.case-card .tag-row{display:flex;gap:8px;margin-bottom:16px;}
.case-card .metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px;padding-top:22px;border-top:1px solid var(--line);}
.case-card .metric-row .m-num{font-family:var(--serif);font-size:24px;color:var(--accent-glow);}
.case-card .metric-row .m-label{font-size:12px;color:var(--ink-soft);margin-top:2px;}

/* ---------- team ---------- */
.founder-block{
  display:grid;
  grid-template-columns:200px 1fr;
  gap:36px;
  align-items:flex-start;
}
.founder-avatar{
  width:200px;height:200px;
  border-radius:var(--radius);
  background:linear-gradient(150deg,var(--accent) 0%, #16234f 100%);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);
  font-size:56px;
  color:#fff;
}
@media (max-width:640px){.founder-block{grid-template-columns:1fr;}.founder-avatar{width:96px;height:96px;font-size:32px;}}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
.contact-form{display:flex;flex-direction:column;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;font-weight:600;color:var(--ink);}
.field input,.field select,.field textarea{
  border:1px solid var(--line);
  border-radius:10px;
  padding:13px 14px;
  font-family:var(--sans);
  font-size:14.5px;
  background:var(--canvas);
  color:var(--ink);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent-glow);outline-offset:1px;}
.field textarea{resize:vertical;min-height:110px;}
.form-note{font-size:12.5px;color:var(--ink-faint);}
.contact-side .side-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  margin-bottom:18px;
  background:var(--canvas-deep);
}
.contact-side .side-card h4{font-size:15px;margin-bottom:6px;}
.contact-side .side-card p,.contact-side .side-card a{font-size:14px;color:var(--ink-soft);}
.contact-side .side-card a.email{color:var(--accent-glow);font-weight:600;}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;}}

/* ---------- booking modal ---------- */
.modal-overlay{
  position:fixed;
  inset:0;
  background:rgba(10,12,17,0.55);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  z-index:200;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
}
.modal-overlay.open{opacity:1;pointer-events:auto;}
.modal{
  background:var(--canvas-deep);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  max-width:460px;
  width:100%;
  padding:36px;
  position:relative;
  max-height:90vh;
  overflow-y:auto;
  transform:translateY(12px);
  transition:transform .2s ease;
}
.modal-overlay.open .modal{transform:translateY(0);}
.modal-close{
  position:absolute;
  top:18px;
  right:18px;
  width:32px;
  height:32px;
  border-radius:999px;
  border:1px solid var(--line);
  background:transparent;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  font-size:18px;
  line-height:1;
  color:var(--ink-soft);
}
.modal-close:hover{border-color:var(--ink);color:var(--ink);}
@media (max-width:480px){.modal{padding:28px 22px;}}

/* ---------- footer ---------- */
footer.site-footer{
  background:var(--void);
  color:var(--dark-ink-soft);
  padding:64px 0 32px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,0.09);
}
.footer-top .brand{color:#fff;margin-bottom:14px;}
.footer-top p{font-size:13.5px;color:var(--dark-ink-soft);max-width:280px;}
.footer-col h5{
  font-size:12px;text-transform:uppercase;letter-spacing:0.08em;color:#8890a0;margin-bottom:16px;font-family:var(--sans);
}
.footer-col a{display:block;font-size:14px;color:var(--dark-ink-soft);margin-bottom:11px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;padding-top:26px;font-size:12.5px;color:#6d7383;flex-wrap:wrap;gap:10px;
}
@media (max-width:860px){.footer-top{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-top{grid-template-columns:1fr;}}

/* ---------- page hero (non-home) ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 56px;
  background:
    radial-gradient(680px 420px at 82% -10%, rgba(91,139,240,0.25), transparent 60%),
    radial-gradient(500px 300px at 8% 110%, rgba(43,95,217,0.18), transparent 60%),
    var(--dark-bg);
  border-bottom:1px solid var(--dark-line);
}
.page-hero .wrap{position:relative;z-index:1;}
.page-hero .eyebrow{margin-bottom:14px;color:var(--accent-glow);}
.page-hero h1{font-size:clamp(32px,4.4vw,48px);color:#fff;}
.page-hero p{font-size:16.5px;color:var(--dark-ink-soft);max-width:600px;margin-top:16px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease, transform .5s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ---------- misc ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
@media (max-width:720px){.grid-2{grid-template-columns:1fr;}}
.center-copy{max-width:680px;margin:0 auto;text-align:center;}
.badge-soft{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;
  background:var(--amber-soft);color:var(--amber);border-radius:999px;padding:4px 10px;
}