/* ============================================================
   GTM Clarity — Design System v4  (Paper + Ink + Living Green)
   Aligned with convo-engine app: Fraunces + Hanken Grotesk
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400;1,9..144,500&family=Hanken+Grotesk:wght@400;500;600;700;800&display=swap');

/* ── Tokens ───────────────────────────────────────────────── */
:root {
  /* Paper backgrounds */
  --bg:           oklch(0.985 0.008 95);   /* paper */
  --bg-white:     oklch(0.972 0.011 95);   /* paper-raised */
  --bg-subtle:    oklch(0.968 0.014 95);   /* slightly more tinted */
  --bg-ink:       oklch(0.18 0.025 158);   /* dark ink for footer/CTA */
  --bg-ink2:      oklch(0.22 0.025 158);

  /* Borders */
  --border:     color-mix(in oklch, oklch(0.26 0.021 158) 13%, oklch(0.985 0.008 95));
  --border-med: color-mix(in oklch, oklch(0.26 0.021 158) 20%, oklch(0.985 0.008 95));

  /* Green — primary accent (replaces orange) */
  --green:        oklch(0.55 0.088 158);
  --green-strong: oklch(0.46 0.098 158);
  --green-wash:   color-mix(in oklch, oklch(0.55 0.088 158) 12%, oklch(0.985 0.008 95));

  /* Aliases kept for backwards-compat with existing HTML */
  --orange:       oklch(0.55 0.088 158);
  --orange-deep:  oklch(0.46 0.098 158);
  --orange-light: color-mix(in oklch, oklch(0.55 0.088 158) 12%, oklch(0.985 0.008 95));
  --slate:        oklch(0.26 0.021 158);
  --slate-deep:   oklch(0.18 0.025 158);
  --slate-light:  color-mix(in oklch, oklch(0.55 0.088 158) 12%, oklch(0.985 0.008 95));
  --indigo:       oklch(0.26 0.021 158);
  --indigo-deep:  oklch(0.18 0.025 158);
  --indigo-light: color-mix(in oklch, oklch(0.55 0.088 158) 12%, oklch(0.985 0.008 95));

  /* Supporting palette */
  --emerald:      oklch(0.55 0.088 158);
  --emerald-light:color-mix(in oklch, oklch(0.55 0.088 158) 12%, oklch(0.985 0.008 95));
  --sky:          oklch(0.55 0.088 158);
  --sky-light:    color-mix(in oklch, oklch(0.55 0.088 158) 12%, oklch(0.985 0.008 95));
  --amber:        oklch(0.66 0.12 60);
  --amber-light:  oklch(0.97 0.03 60);

  /* Ink / text */
  --ink:          oklch(0.26 0.021 158);
  --text:         oklch(0.26 0.021 158);
  --text-muted:   oklch(0.46 0.022 158);
  --text-dim:     oklch(0.62 0.015 158);
  --text-inv:     oklch(0.93 0.008 95);

  --radius:       10px;
  --radius-lg:    16px;
  --radius-xl:    24px;

  --font-sans:    'Hanken Grotesk', ui-sans-serif, system-ui, sans-serif;
  --font-serif:   'Fraunces', Georgia, serif;

  --nav-h:        60px;
  --max-w:        1160px;

  --shadow-xs: 0 1px 2px color-mix(in oklch, var(--ink) 5%, transparent);
  --shadow-sm: 0 1px 4px color-mix(in oklch, var(--ink) 6%, transparent), 0 1px 2px color-mix(in oklch, var(--ink) 4%, transparent);
  --shadow-md: 0 4px 16px color-mix(in oklch, var(--ink) 8%, transparent), 0 2px 6px color-mix(in oklch, var(--ink) 4%, transparent);
  --shadow-lg: 0 12px 40px color-mix(in oklch, var(--ink) 10%, transparent), 0 4px 12px color-mix(in oklch, var(--ink) 5%, transparent);
  --shadow-xl: 0 24px 64px color-mix(in oklch, var(--ink) 12%, transparent), 0 8px 24px color-mix(in oklch, var(--ink) 6%, transparent);
  --shadow-plane: 0 1px 0 color-mix(in oklch, var(--green) 7%, transparent), 0 10px 28px -12px color-mix(in oklch, var(--ink) 22%, transparent);
}

/* ── Reset ────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{display:block}
ul,ol{list-style:none}

/* ── Layout ───────────────────────────────────────────────── */
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px}
section{padding:96px 0}
section.sm{padding:64px 0}
section.dark{background:var(--bg-ink);color:var(--text-inv)}
section.subtle{background:var(--bg-subtle)}

/* ── Nav ──────────────────────────────────────────────────── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h);display:flex;align-items:center;
  background:color-mix(in oklch, oklch(0.985 0.008 95) 94%, transparent);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  transition:height .25s, box-shadow .3s;
}
.nav.scrolled{height:52px;box-shadow:var(--shadow-sm)}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px;
}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--ink);
}
/* stacked by default: GTM over CLARITY */
.logo-wordmark{display:inline-flex;flex-direction:column;align-items:flex-start;gap:1px;line-height:1;transition:gap .25s;}
.logo-gtm{
  font-family:var(--font-serif);font-style:normal;font-weight:500;
  font-size:20px;color:var(--ink);letter-spacing:-0.01em;text-transform:none;
  transition:font-size .25s;
}
.logo-clarity{
  font-family:var(--font-sans);font-weight:700;
  font-size:8.5px;letter-spacing:2.2px;text-transform:uppercase;
  color:var(--green);transition:font-size .25s,letter-spacing .25s;
}
.nav-logo-mark svg{display:block;flex-shrink:0;width:34px;height:34px;transition:width .25s,height .25s;}
/* on scroll: collapse to a compact horizontal lockup */
.nav.scrolled .logo-wordmark{flex-direction:row;align-items:baseline;gap:6px;}
.nav.scrolled .logo-gtm{font-size:17px;}
.nav.scrolled .logo-clarity{font-size:11px;letter-spacing:2px;}
.nav.scrolled .nav-logo-mark svg{width:27px;height:27px;}
.nav.scrolled .nav-links{gap:22px;}
.nav.scrolled .nav-links a{font-size:13px;}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-size:14px;font-weight:500;color:var(--text-muted);transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--slate)}
.nav-cta{display:flex;gap:10px;align-items:center}

/* ── Buttons ──────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:7px;padding:10px 20px;
  font-size:14px;font-weight:600;font-family:var(--font-sans);
  border-radius:8px;border:none;cursor:pointer;
  transition:all .18s;white-space:nowrap;text-decoration:none;line-height:1;
}
/* Primary = orange (the conversion action) */
.btn-primary{background:var(--green);color:#fff;box-shadow:0 1px 3px color-mix(in oklch,var(--green) 30%,transparent)}
.btn-primary:hover{background:var(--green-strong);transform:translateY(-1px);box-shadow:0 4px 14px color-mix(in oklch,var(--green) 35%,transparent)}
.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border-med)}
.btn-ghost:hover{border-color:rgba(0,0,0,0.18);color:var(--text);background:rgba(0,0,0,0.02)}
.btn-outline{background:transparent;color:var(--slate);border:1px solid rgba(51,65,85,0.25)}
.btn-outline:hover{background:var(--slate-light)}
.btn-outline-indigo{background:transparent;color:var(--slate);border:1px solid rgba(51,65,85,0.25)}
.btn-outline-indigo:hover{background:var(--slate-light)}
.btn-white{background:#fff;color:var(--slate-deep);box-shadow:var(--shadow-sm)}
.btn-white:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--bg-ink2);transform:translateY(-1px)}
.btn-orange{background:var(--green);color:#fff;box-shadow:0 1px 3px color-mix(in oklch,var(--green) 30%,transparent)}
.btn-orange:hover{background:var(--green-strong);transform:translateY(-1px)}
.btn-lg{padding:13px 26px;font-size:15px;border-radius:9px}
.btn-xl{padding:15px 32px;font-size:16px;border-radius:10px}
.w-full{width:100%}

/* ── Cards ────────────────────────────────────────────────── */
.card{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:28px;
  box-shadow:var(--shadow-xs);
  transition:box-shadow .2s,transform .2s,border-color .2s;
}
.card:hover{box-shadow:var(--shadow-md);border-color:var(--border-med);transform:translateY(-2px)}
.card-flat{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px}
.card-tinted{background:var(--slate-light);border:1px solid rgba(51,65,85,0.1);border-radius:var(--radius-lg);padding:24px}
.card-orange{background:var(--green-wash);border:1px solid color-mix(in oklch,var(--green) 20%,transparent);border-radius:var(--radius-lg);padding:24px}
.card-ink{background:var(--bg-ink2);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius-lg);padding:28px;color:var(--text-inv)}

/* ── Typography ───────────────────────────────────────────── */
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:500;letter-spacing:-0.015em;line-height:1.05;color:var(--ink)}
h1{font-size:clamp(36px,5vw,64px)}
h2{font-size:clamp(28px,3.5vw,48px)}
h3{font-size:clamp(18px,2.2vw,24px)}
h4{font-size:17px}
.serif{font-family:var(--font-serif);font-style:italic;font-weight:400}
.text-indigo{color:var(--slate)}
.text-orange{color:var(--orange)}
.text-muted{color:var(--text-muted)}
.text-dim{color:var(--text-dim)}
.text-inv{color:var(--text-inv)}
.text-emerald{color:var(--emerald)}
.lead{font-size:clamp(16px,1.8vw,19px);color:var(--text-muted);line-height:1.75}

/* ── Section labels ───────────────────────────────────────── */
.section-num{
  display:block;
  font-size:11px;font-weight:700;letter-spacing:1.5px;
  text-transform:uppercase;color:var(--orange);
  margin-bottom:14px;
}
.section-tag{
  display:inline-block;
  font-size:12px;font-weight:600;letter-spacing:.5px;
  color:var(--text-muted);
  margin-bottom:12px;
}

/* ── Grid ─────────────────────────────────────────────────── */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}

/* ── Icons — stroke-only, no colored boxes ───────────────── */
.feat-icon{
  display:inline-flex;align-items:center;
  color:var(--slate);margin-bottom:14px;
}
.feat-icon svg{width:18px;height:18px;stroke-width:1.75}
.feat-icon.orange  {color:var(--orange)}
.feat-icon.sky     {color:var(--sky)}
.feat-icon.emerald {color:var(--emerald)}
.feat-icon.amber   {color:var(--amber)}
.feat-icon.muted   {color:var(--text-dim)}
.feat-icon.white   {color:rgba(255,255,255,.7)}

.icon-inline{display:inline-flex;align-items:center;color:var(--slate)}
.icon-inline svg{width:15px;height:15px;stroke-width:1.75}

.icon-box{display:inline-flex;align-items:center;flex-shrink:0;color:var(--slate);margin-bottom:14px}
.icon-box svg{width:18px;height:18px;stroke-width:1.75}
.icon-box.indigo {color:var(--slate)}
.icon-box.sky    {color:var(--sky)}
.icon-box.emerald{color:var(--emerald)}
.icon-box.amber  {color:var(--amber)}
.icon-box.ink    {color:rgba(255,255,255,.7)}

/* ── Tag ──────────────────────────────────────────────────── */
.tag{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:100px;font-size:12px;font-weight:600}
.tag-indigo  {background:var(--slate-light);color:var(--slate)}
.tag-slate   {background:var(--slate-light);color:var(--slate)}
.tag-orange  {background:var(--orange-light);color:var(--orange-deep)}
.tag-sky     {background:var(--sky-light);   color:#0369a1}
.tag-emerald {background:var(--emerald-light);color:var(--emerald)}
.tag-amber   {background:var(--amber-light); color:var(--amber)}

/* ── Stat ─────────────────────────────────────────────────── */
.stat{display:flex;flex-direction:column;gap:4px}
.stat .num{font-size:44px;font-weight:800;letter-spacing:-2.5px;color:var(--orange);line-height:1}
.stat .label{font-size:13px;color:var(--text-muted);font-weight:500}

/* ── Chat bubbles ─────────────────────────────────────────── */
.bubble{max-width:340px;padding:12px 16px;border-radius:16px;font-size:13.5px;line-height:1.55}
.bubble-visitor{background:#fff;border:1px solid var(--border-med);border-bottom-left-radius:4px;align-self:flex-start;box-shadow:var(--shadow-xs)}
.bubble-ai{background:var(--slate);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}
.bubble-label{font-size:10px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;margin-bottom:5px;opacity:.55}

/* ── Progress bar ─────────────────────────────────────────── */
.progress-bar{height:5px;border-radius:100px;background:var(--bg-subtle);overflow:hidden;margin-top:8px}
.progress-fill{height:100%;border-radius:100px;background:linear-gradient(90deg,var(--slate),var(--orange));transition:width 1s ease}

/* ── Step ─────────────────────────────────────────────────── */
.step-num{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;background:var(--slate);color:#fff;flex-shrink:0}

/* ── Divider ──────────────────────────────────────────────── */
hr.divider{border:none;height:1px;background:var(--border)}

/* ── Testimonial ──────────────────────────────────────────── */
.testimonial{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-xs)}
.testimonial blockquote{font-size:15px;line-height:1.7;color:var(--text);margin-bottom:18px}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-avatar{width:38px;height:38px;border-radius:50%;background:var(--slate-light);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--slate);font-size:14px}
.testimonial-author p{font-size:14px;font-weight:600;margin-bottom:1px}
.testimonial-author span{font-size:12px;color:var(--text-muted)}

/* ── Pricing ──────────────────────────────────────────────── */
.pricing-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-xl);padding:36px;box-shadow:var(--shadow-xs)}
.pricing-card.featured{background:var(--bg-ink);border-color:var(--bg-ink);color:#fff;box-shadow:var(--shadow-xl),0 0 0 4px rgba(30,42,58,0.12)}
.pricing-card.featured .text-muted{color:rgba(255,255,255,.6)}
.feat-list{display:flex;flex-direction:column;gap:11px;margin-top:24px}
.feat-item{display:flex;align-items:flex-start;gap:10px;font-size:14px}
.feat-check{color:var(--emerald);flex-shrink:0;margin-top:1px}
.feat-check.off{color:var(--text-dim)}
.feat-label{color:var(--text-muted)}
.pricing-card.featured .feat-label{color:rgba(255,255,255,.75)}
.pricing-card.featured .feat-check{color:rgba(255,255,255,.9)}

/* ── Sticky scroll ────────────────────────────────────────── */
.sticky-scroll-grid{
  display:grid;
  grid-template-columns:240px 1fr;
  gap:72px;
  align-items:start;
}
.sticky-pane{
  position:sticky;
  top:calc(var(--nav-h) + 40px);
}
.layer-nav-label{
  font-size:11px;font-weight:600;letter-spacing:1.5px;
  text-transform:uppercase;color:var(--text-dim);
  margin-bottom:20px;padding-left:16px;
}
.layer-nav-track{position:relative}
.layer-nav-track::before{
  content:'';position:absolute;
  left:15px;top:24px;bottom:24px;
  width:1px;background:var(--border);
}
.layer-nav-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;cursor:pointer;border-radius:8px;
  transition:all .2s;user-select:none;
}
.layer-nav-item:hover{background:var(--bg-subtle)}
.layer-nav-item.active{background:var(--orange-light)}
.layer-nav-dot{
  width:28px;height:28px;border-radius:50%;
  border:1.5px solid var(--border);background:var(--bg-white);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:var(--text-dim);
  flex-shrink:0;transition:all .2s;position:relative;z-index:1;
}
.layer-nav-item.active .layer-nav-dot{background:var(--orange);border-color:var(--orange);color:#fff}
.layer-nav-info .title{font-size:13px;font-weight:600;color:var(--text-muted);transition:color .2s;line-height:1.3}
.layer-nav-info .sub{font-size:11px;color:var(--text-dim);margin-top:1px}
.layer-nav-item.active .layer-nav-info .title{color:var(--slate-deep)}

.layer-section{padding:72px 0;scroll-margin-top:calc(var(--nav-h) + 24px)}
.layer-section+.layer-section{border-top:1px solid var(--border)}
.layer-num{
  display:inline-block;
  font-size:11px;font-weight:700;letter-spacing:1.5px;
  text-transform:uppercase;color:var(--orange);margin-bottom:16px;
}

/* ── Comparison table ─────────────────────────────────────── */
.compare-table{width:100%;border-collapse:collapse;font-size:14px}
.compare-table th{padding:12px 20px;text-align:left;font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--text-dim);border-bottom:2px solid var(--border)}
.compare-table td{padding:14px 20px;border-bottom:1px solid var(--border);vertical-align:middle}
.compare-table tr:last-child td{border-bottom:none}
.compare-table tr.us td{background:var(--orange-light);font-weight:600;color:var(--ink)}
.compare-table tr.us td:first-child{border-radius:8px 0 0 8px}
.compare-table tr.us td:last-child{border-radius:0 8px 8px 0}
.check-yes{color:var(--emerald);font-size:16px}
.check-no{color:var(--text-dim)}

/* ── Footer ───────────────────────────────────────────────── */
.footer{background:var(--bg-ink);color:var(--text-inv);padding:72px 0 40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:40px;margin-bottom:56px}
.footer-logo{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:700;color:#fff;margin-bottom:12px}
.footer .logo-gtm{color:#fff}
.footer-logo svg rect{fill:rgba(255,255,255,0.12)}
.footer p.tagline{font-size:14px;color:rgba(255,255,255,.4);line-height:1.7;max-width:260px;margin-top:10px}
.footer-col h5{font-size:11px;font-weight:600;letter-spacing:.8px;text-transform:uppercase;color:rgba(255,255,255,.3);margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.5);margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:32px;border-top:1px solid rgba(255,255,255,.06)}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.25)}

/* ── FAQ ──────────────────────────────────────────────────── */
.faq-item{border-bottom:1px solid var(--border);padding:22px 0}
.faq-q{font-size:15px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-q .chevron{font-size:18px;color:var(--text-dim);transition:transform .2s;flex-shrink:0}
.faq-q.open .chevron{transform:rotate(180deg)}
.faq-a{font-size:15px;color:var(--text-muted);line-height:1.75;max-height:0;overflow:hidden;transition:max-height .3s ease,margin-top .3s}
.faq-a.open{max-height:300px;margin-top:12px}

/* ── Scroll animation ─────────────────────────────────────── */
.fade-in{opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease}
.fade-in.visible{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}

/* ── Canvas ───────────────────────────────────────────────── */
#neural-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}

/* ── Utility ──────────────────────────────────────────────── */
.flex{display:flex}.flex-col{display:flex;flex-direction:column}
.flex-wrap{flex-wrap:wrap}
.items-center{align-items:center}.items-start{align-items:flex-start}
.justify-center{justify-content:center}.justify-between{justify-content:space-between}
.gap-4{gap:4px}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.gap-20{gap:20px}.gap-24{gap:24px}.gap-32{gap:32px}.gap-40{gap:40px}.gap-48{gap:48px}
.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}
.mt-20{margin-top:20px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.mt-40{margin-top:40px}.mt-48{margin-top:48px}.mt-64{margin-top:64px}
.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}
.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}
.text-center{text-align:center}.relative{position:relative}.overflow-hidden{overflow:hidden}
.pt-nav{padding-top:calc(var(--nav-h) + 48px)}
.max-680{max-width:680px}.max-580{max-width:580px}.mx-auto{margin-left:auto;margin-right:auto}
.shrink-0{flex-shrink:0}

/* ── Responsive ───────────────────────────────────────────── */
@media(max-width:960px){
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .sticky-scroll-grid{grid-template-columns:1fr}
  .sticky-pane{position:relative;top:auto}
}
@media(max-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  section{padding:64px 0}
  h1{font-size:34px}
  h2{font-size:26px}
}