/* ============================================================
   plainworks — shared site stylesheet
   Operational clarity, not creative theater.
   Locked palette only. Orange is a sparing implementation accent.
   ============================================================ */

:root{
  --white:#FFFFFF;
  --ink:#091018;
  --blue:#2F66FF;
  --blue-700:#1f49c9;
  --blue-100:#e7eeff;
  --orange:#FFB454;
  --grey:#666A70;
  --surface:#F7F8FA;
  --line:#D9DEE6;
  --line-dark:#222c3a;

  --ink-soft:#3a4150;
  --on-dark-mute:#9aa3b2;
  --on-dark-line:#1d2735;

  --maxw:1240px;
  --pad:clamp(20px,5vw,64px);

  --r-sm:8px; --r-md:14px; --r-lg:22px; --r-xl:32px;
  --shadow-sm:0 1px 2px rgba(9,16,24,.06), 0 2px 8px rgba(9,16,24,.04);
  --shadow-md:0 10px 30px rgba(9,16,24,.08), 0 2px 8px rgba(9,16,24,.05);
  --shadow-lg:0 30px 80px rgba(9,16,24,.14), 0 8px 24px rgba(9,16,24,.08);
  --shadow-blue:0 18px 50px rgba(47,102,255,.28);

  --font-display:'Sora',system-ui,sans-serif;
  --font-body:'Hanken Grotesk',system-ui,sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --nav-h:74px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  font-family:var(--font-body);
  background:var(--white);
  color:var(--ink);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:clip;
}

/* selection + focus */
::selection{background:var(--blue);color:#fff}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2.5px solid var(--blue);outline-offset:3px;border-radius:3px}
.skip-link{position:fixed;left:10px;top:-64px;z-index:6000;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;font-family:var(--font-mono);font-size:13px;letter-spacing:.02em;transition:top .2s var(--ease-out)}
.skip-link:focus{top:10px;outline:2.5px solid var(--blue);outline-offset:2px}
img{max-width:100%;display:block}

/* ---------- type scale ---------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.02;letter-spacing:-.025em;text-wrap:balance}
.display{font-size:clamp(44px,8.2vw,118px);font-weight:800;line-height:.96;letter-spacing:-.035em}
.h1{font-size:clamp(38px,6vw,82px);line-height:.98;letter-spacing:-.03em}
.h2{font-size:clamp(30px,4.4vw,60px);line-height:1.0;letter-spacing:-.028em}
.h3{font-size:clamp(22px,2.6vw,34px);line-height:1.06;letter-spacing:-.02em}
.lead{font-size:clamp(18px,1.9vw,24px);line-height:1.5;color:var(--grey);font-weight:400;text-wrap:pretty;max-width:62ch}
.fine{font-size:13.5px;color:#595e66}
strong{font-weight:700}

/* operational eyebrow / label */
.eyebrow{
  font-family:var(--font-mono);font-size:12.5px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--blue);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{
  content:"";width:7px;height:7px;border-radius:2px;background:var(--blue);
  box-shadow:0 0 0 4px rgba(47,102,255,.16);
}
.eyebrow.amber{color:#b8791f}
.eyebrow.amber::before{background:var(--orange);box-shadow:0 0 0 4px rgba(255,180,84,.22)}
.on-dark .eyebrow{color:#7fa0ff}
.on-dark .eyebrow.amber{color:var(--orange)}

.mono{font-family:var(--font-mono)}
.lower{text-transform:lowercase}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad);width:100%}
.section{padding-block:clamp(72px,11vw,148px);position:relative}
.section.tight{padding-block:clamp(56px,8vw,96px)}
.band-surface{background:var(--surface)}
.band-dark{background:var(--ink);color:#eef1f6}
.band-dark .lead,.band-dark .fine{color:var(--on-dark-mute)}
.band-dark h1,.band-dark h2,.band-dark h3,.band-dark h4{color:#fff}
.band-blue{background:var(--blue);color:#fff}
.grid{display:grid;gap:clamp(20px,2.4vw,32px)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}}
.row{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.between{justify-content:space-between}

/* section header block */
.sec-head{max-width:760px;margin-bottom:clamp(36px,5vw,64px)}
.sec-head .eyebrow{margin-bottom:20px}
.sec-num{font-family:var(--font-mono);font-size:13px;color:var(--grey);letter-spacing:.1em}

/* ---------- buttons ---------- */
.btn{
  --bg:var(--ink);--fg:#fff;
  font-family:var(--font-body);font-weight:600;font-size:15.5px;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 24px;border-radius:999px;border:1px solid transparent;
  background:var(--bg);color:var(--fg);cursor:pointer;
  transition:transform .35s var(--ease-out),box-shadow .35s var(--ease-out),background .25s;
  position:relative;white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn .arrow{transition:transform .35s var(--ease-out)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{--bg:var(--blue);--fg:#fff;box-shadow:var(--shadow-blue)}
.btn-primary:hover{--bg:var(--blue-700)}
.btn-ink{--bg:var(--ink);--fg:#fff}
.btn-ghost{--bg:transparent;--fg:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(9,16,24,.03)}
.on-dark .btn-ghost{--fg:#fff;border-color:var(--on-dark-line)}
.on-dark .btn-ghost:hover{background:rgba(255,255,255,.06);border-color:#46566e}
.nav.dark-top .btn-ghost{color:#fff;border-color:rgba(255,255,255,.22)}
.nav.dark-top.scrolled .btn-ghost{color:#fff}
.nav.dark-top .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.4)}
.btn-white{--bg:#fff;--fg:var(--ink)}
.btn-lg{padding:17px 30px;font-size:16.5px}

.txtlink{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--blue);
  border-bottom:1.5px solid transparent;transition:border-color .25s,gap .3s var(--ease-out);padding-bottom:1px}
.txtlink:hover{border-color:var(--blue);gap:12px}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(24px,2.6vw,36px);transition:transform .5s var(--ease-out),box-shadow .5s var(--ease-out),border-color .5s;
  position:relative;overflow:hidden;
}
.card.hover:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.band-dark .card{background:#0f1620;border-color:var(--on-dark-line)}
.band-surface .card{background:#fff}

/* chip / status */
.chip{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:7px;padding:5px 11px;border-radius:7px;
  background:var(--surface);border:1px solid var(--line);color:var(--grey);font-weight:500;
}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--grey)}
.chip.ok{color:#1f7a4d;background:#eaf6f0;border-color:#cbe9da}
.chip.ok .dot{background:#1f9d57}
.chip.run{color:var(--blue);background:var(--blue-100);border-color:#cdd9ff}
.chip.run .dot{background:var(--blue);animation:pulse 1.8s infinite}
.chip.amber{color:#9a6712;background:#fff4e2;border-color:#f6e0b8}
.chip.amber .dot{background:var(--orange)}
.on-dark .chip{background:#131c28;border-color:var(--on-dark-line);color:var(--on-dark-mute)}

@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(47,102,255,.5)}50%{box-shadow:0 0 0 5px rgba(47,102,255,0)}}

/* brand tag (flow / growth / canvas) */
.btag{font-family:var(--font-display);font-weight:700;letter-spacing:-.01em}
.btag .b-flow{color:var(--blue)}
.btag .b-growth{color:var(--ink)}
.band-dark .btag .b-growth{color:#fff}

/* ---------- NAV ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);
  display:flex;align-items:center;
  transition:background .4s var(--ease),box-shadow .4s var(--ease),height .4s var(--ease),backdrop-filter .4s;
}
.nav-inner{max-width:1340px;margin-inline:auto;padding-inline:clamp(16px,4vw,40px);width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav.scrolled{background:rgba(255,255,255,.82);backdrop-filter:blur(18px) saturate(160%);
  box-shadow:0 1px 0 var(--line);height:64px}
.nav.dark-top{color:#fff}
.nav.dark-top.scrolled{background:rgba(9,16,24,.72);box-shadow:0 1px 0 var(--on-dark-line);backdrop-filter:blur(18px) saturate(160%)}
.nav-logo{display:flex;align-items:center;gap:11px;font-family:var(--font-display);font-weight:600;font-size:20px;letter-spacing:-.02em}
.nav-logo img{height:34px;width:auto;border-radius:7px}
.nav-logo .wm b{font-weight:800}
.nav-logo .wm .ai{color:var(--orange)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  font-size:14.5px;font-weight:500;color:inherit;padding:9px 14px;border-radius:8px;position:relative;
  opacity:.82;transition:opacity .2s,background .2s;
}
.nav-links a:hover{opacity:1;background:rgba(127,140,160,.12)}
.nav-links a.active{opacity:1;color:var(--blue)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-burger span{width:24px;height:2px;background:currentColor;border-radius:2px;transition:.3s}
@media(max-width:980px){
  .nav-links,.nav-cta .btn:not(.nav-keep){display:none}
  .nav-burger{display:flex}
}
.mobile-menu{position:fixed;inset:0;z-index:999;background:var(--ink);color:#fff;
  display:flex;flex-direction:column;justify-content:center;padding:var(--pad);gap:6px;overflow-y:auto;
  visibility:hidden;transform:translateY(-100%);transition:transform .5s var(--ease-out),visibility 0s linear .5s;}
.mobile-menu.open{transform:translateY(0);visibility:visible;transition:transform .5s var(--ease-out),visibility 0s}
.mobile-menu a{font-family:var(--font-display);font-size:34px;font-weight:700;padding:10px 0;color:#fff;
  border-bottom:1px solid var(--on-dark-line);display:flex;justify-content:space-between;align-items:center}
.mobile-menu a .n{font-family:var(--font-mono);font-size:14px;color:var(--on-dark-mute)}

/* ---------- FOOTER ---------- */
.footer{background:var(--ink);color:#cdd4df;padding-block:clamp(56px,8vw,96px) 36px;position:relative;overflow:hidden}
.footer h4{color:#fff;font-size:14px;font-family:var(--font-mono);font-weight:500;letter-spacing:.1em;text-transform:uppercase;margin-bottom:18px;color:var(--on-dark-mute)}
.footer a{color:#cdd4df;opacity:.8;display:inline-block;padding:5px 0;transition:opacity .2s,color .2s}
.footer a:hover{opacity:1;color:#fff}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid var(--on-dark-line)}
@media(max-width:820px){.footer-top{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-top{grid-template-columns:1fr}}
.footer-brand img{height:62px;margin-bottom:18px}
.footer-tag{font-family:var(--font-display);font-size:26px;font-weight:600;color:#fff;letter-spacing:-.02em}
.footer-tag b{font-weight:800}
.footer-tag .o{color:var(--orange)}
/* footer innovation block (fills the slide) */
.footer-lead{padding-bottom:46px;margin-bottom:48px;border-bottom:1px solid var(--on-dark-line)}
.fl-big{font-family:var(--font-display);font-weight:700;font-size:clamp(30px,5vw,60px);letter-spacing:-.03em;line-height:1.04;color:#fff;max-width:20ch}
.fl-rot{color:var(--blue);display:inline-block;min-width:4ch}
.fl-rot .w{display:inline-block;opacity:1}
html.fx .fl-rot .w{animation:flSwap .55s var(--ease-out)}
@keyframes flSwap{from{opacity:0;transform:translateY(.45em) rotateX(-55deg)}to{opacity:1;transform:none}}
.fl-ask{margin-top:30px;display:inline-flex;align-items:center;gap:12px;background:#fff;color:var(--ink);
  border:0;border-radius:999px;padding:16px 28px;font-family:var(--font-body);font-weight:600;font-size:16px;
  cursor:pointer;transition:transform .3s var(--ease-out),box-shadow .3s}
.fl-ask:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(0,0,0,.34)}
.fl-ask .arrow{transition:transform .3s}
.fl-ask:hover .arrow{transform:translateX(5px)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center;padding-top:26px;font-size:13px;color:var(--on-dark-mute);font-family:var(--font-mono)}
.footer-end{font-family:var(--font-display);font-weight:700;font-size:clamp(17px,1.6vw,21px);color:#fff;letter-spacing:-.015em}
.footer-end .o{color:var(--orange)}

/* ---------- scroll reveal (fx-gated: visible by default, hidden only when animation is confirmed working) ---------- */
/* When fx is absent (frozen/throttled capture context), disable transitions so values
   jump straight to their final state instead of freezing mid-transition. */
html:not(.fx) .reveal,html:not(.fx) .reveal-x,html:not(.fx) .reveal-clip,
html:not(.fx) .lines .word>span,html:not(.fx) .fnode,html:not(.fx) .fnode .ai,
html:not(.fx) .mstep .mdot,html:not(.fx) .leak .bar i{transition:none!important}
.reveal{opacity:1;transform:none;transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}.reveal.d6{transition-delay:.48s}
.reveal-x{opacity:1;transform:none;transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
.reveal-clip{transition:clip-path 1.1s var(--ease-out)}
@media (prefers-reduced-motion:reduce){
  html.fx .reveal:not(.in),html.fx .reveal-x:not(.in){opacity:1!important;transform:none!important}
  html.fx .reveal-clip:not(.in){clip-path:none!important}
  .marquee .track{animation:none!important}
  .chip.run .dot,.spec-status .ss-dot{animation:none!important}
}

/* word-by-word headline reveal */
.lines .word{display:inline-block;overflow:hidden;vertical-align:top}
.lines .word > span{display:inline-block;transform:none;transition:transform .9s var(--ease-out)}

/* page-transition wipe */
#page-wipe{position:fixed;inset:0;z-index:5000;pointer-events:none;transform:scaleY(0);transform-origin:bottom;
  background:var(--blue);}
#page-wipe.run{animation:wipe 1s var(--ease-out) forwards}
@keyframes wipe{0%{transform:scaleY(0);transform-origin:bottom}45%{transform:scaleY(1);transform-origin:bottom}
  46%{transform-origin:top}100%{transform:scaleY(0);transform-origin:top}}

/* utility */
.hl-blue{color:var(--blue)}
.hl-orange{color:var(--orange)}
.muted{color:var(--grey)}
.center{text-align:center}
.mxauto{margin-inline:auto}
.stack-sm>*+*{margin-top:12px}
.stack>*+*{margin-top:20px}
.divider{height:1px;background:var(--line);border:0;margin-block:clamp(40px,6vw,72px)}
.on-dark .divider{background:var(--on-dark-line)}
.kicker-num{font-family:var(--font-mono);font-size:clamp(13px,1vw,15px);color:var(--blue);letter-spacing:.1em}
.imp-block{display:inline-block;width:.62em;height:.62em;background:var(--orange);border-radius:2px;vertical-align:baseline}

/* gridlines backdrop */
.gridlines{position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;-webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 30%,transparent 78%);
  mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 30%,transparent 78%);opacity:.5}
.band-dark .gridlines{background-image:linear-gradient(var(--on-dark-line) 1px,transparent 1px),linear-gradient(90deg,var(--on-dark-line) 1px,transparent 1px);opacity:.6}
.wrap-rel{position:relative;z-index:1}