/* ============================================================
   customAI — customai.co.uk
   Design tokens → layout → components → responsive
   ============================================================ */

:root{
  --ink:#05070d;
  --ink-2:#090d17;
  --paper:#e9edf6;
  --muted:#8b97b0;
  --muted-2:#6b7691;
  --line:rgba(140,160,200,.16);
  --line-2:rgba(140,160,200,.28);

  --cyan:#38e8ff;
  --violet:#7c5cff;
  --amber:#ffb86b;

  --glass:rgba(10,14,24,.55);
  --glass-2:rgba(14,19,32,.72);

  --shell:1180px;
  --r:16px;
  --r-lg:22px;

  --f-display:"Space Grotesk","Segoe UI",system-ui,-apple-system,sans-serif;
  --f-text:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--f-text);
  font-size:16px;
  line-height:1.65;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block}
[hidden]{display:none!important}

a{color:inherit}

::selection{background:rgba(56,232,255,.26)}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:4px;
}

.skip-link{
  position:fixed;top:-100px;left:16px;z-index:200;
  background:var(--cyan);color:#04121a;font-weight:600;
  padding:10px 16px;border-radius:0 0 10px 10px;text-decoration:none;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}

/* ───────── WebGL backdrop ───────── */

.scene{
  position:fixed;inset:0;z-index:0;
  pointer-events:none;
}
.scene canvas{
  width:100%;height:100%;display:block;
  opacity:0;
  transition:opacity 1.1s var(--ease);
}
.scene canvas.is-ready{opacity:1}

/* Shown when WebGL is unavailable or motion is reduced */
.scene-fallback{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 620px at 72% 18%, rgba(124,92,255,.26), transparent 62%),
    radial-gradient(760px 560px at 20% 72%, rgba(56,232,255,.18), transparent 64%),
    linear-gradient(180deg,#05070d 0%,#070b14 48%,#05070d 100%);
}
.scene.has-gl .scene-fallback{opacity:.5}

/* Legibility scrim: keeps the copy column dark while the scene stays lit */
.scene::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,
    rgba(5,7,13,.90) 0%,
    rgba(5,7,13,.72) 26%,
    rgba(5,7,13,.30) 52%,
    rgba(5,7,13,.10) 72%,
    rgba(5,7,13,.46) 100%);
}
@media (max-width:900px){
  .scene::after{
    background:radial-gradient(120% 70% at 50% 42%,
      rgba(5,7,13,.64) 0%, rgba(5,7,13,.78) 58%, rgba(5,7,13,.88) 100%);
  }
}

/* Fine film grain lifts the flat darks */
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  opacity:.26;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

.scroll-rail{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:60;
  background:rgba(255,255,255,.05);
}
.scroll-rail span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(56,232,255,.6);
}

/* ───────── Layout ───────── */

.shell{
  width:100%;max-width:var(--shell);
  margin-inline:auto;
  padding-inline:24px;
}

main{position:relative;z-index:2}

.section{padding-block:clamp(84px,11vw,150px)}
section[id]{scroll-margin-top:92px}

/* ───────── Nav ───────── */

.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  padding-block:18px;
  transition:padding .35s var(--ease),background .35s var(--ease),border-color .35s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  padding-block:10px;
  background:rgba(5,7,13,.72);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;gap:28px}

.brand{
  display:inline-flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--cyan);
  flex:0 0 auto;
}
.brand-mark{width:28px;height:28px}
.brand-word{
  font-family:var(--f-display);
  font-size:1.14rem;font-weight:500;letter-spacing:-.02em;
  color:var(--paper);
}
.brand-word strong{
  font-weight:700;
  background:linear-gradient(92deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}

.nav-links{display:flex;gap:26px;margin-left:auto}
.nav-links a{
  font-size:.9rem;color:var(--muted);text-decoration:none;
  position:relative;padding-block:4px;
  transition:color .25s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--cyan);transition:right .3s var(--ease);
}
.nav-links a:hover{color:var(--paper)}
.nav-links a:hover::after{right:0}

.nav-toggle{
  display:none;
  width:42px;height:38px;border:1px solid var(--line-2);border-radius:10px;
  background:var(--glass);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{
  display:block;width:17px;height:1.5px;background:var(--paper);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav[data-open="true"] .nav-toggle span:first-child{transform:translateY(3.25px) rotate(45deg)}
.nav[data-open="true"] .nav-toggle span:last-child{transform:translateY(-3.25px) rotate(-45deg)}

/* ───────── Buttons ───────── */

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--f-display);font-size:.95rem;font-weight:600;
  text-decoration:none;cursor:pointer;
  padding:13px 24px;border-radius:12px;border:0;
  color:#04121a;
  background:linear-gradient(96deg,var(--cyan),#6ad8ff 55%,var(--violet));
  box-shadow:0 10px 34px -12px rgba(56,232,255,.65);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 42px -12px rgba(56,232,255,.8);filter:saturate(118%)}
.btn:active{transform:translateY(0)}
.btn-sm{padding:9px 17px;font-size:.86rem;flex:0 0 auto}
.btn-wide{width:100%;padding-block:15px}

.btn-ghost{
  background:transparent;color:var(--paper);
  border:1px solid var(--line-2);
  box-shadow:none;
}
.btn-ghost:hover{
  background:rgba(56,232,255,.07);
  border-color:rgba(56,232,255,.55);
  box-shadow:none;
}

/* ───────── Type ───────── */

h1,h2,h3{font-family:var(--f-display);font-weight:600;letter-spacing:-.025em;line-height:1.08;margin:0}

h1{font-size:clamp(2.25rem,6.4vw,4.6rem);letter-spacing:-.035em}
h1 em{
  font-style:normal;
  background:linear-gradient(94deg,var(--cyan),var(--violet) 88%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
h2{font-size:clamp(1.85rem,3.9vw,2.85rem)}
h3{font-size:1.1rem;letter-spacing:-.015em;line-height:1.3}

.eyebrow{
  font-family:var(--f-display);font-size:.8rem;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--cyan);margin:0 0 22px;
}
.kicker{
  font-family:var(--f-display);font-size:.78rem;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted-2);margin:0 0 16px;
}
.lede{
  font-size:clamp(1.02rem,1.5vw,1.2rem);
  color:var(--muted);max-width:56ch;margin:26px 0 0;
}
.section-sub{color:var(--muted);max-width:58ch;margin:18px 0 0}
.section-head{margin-bottom:clamp(44px,6vw,68px)}
.section-head .btn{margin-top:28px}

/* ───────── Hero ───────── */

.hero{
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  padding-block:140px 90px;
  position:relative;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

.hero-points{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  list-style:none;margin:46px 0 0;padding:0;
  font-size:.88rem;color:var(--muted-2);
}
.hero-points li{display:flex;align-items:center;gap:9px}
.hero-points li::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px var(--cyan);
}

.scroll-hint{
  position:absolute;left:50%;bottom:30px;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;
  color:var(--muted-2);
}
.scroll-hint span{
  width:1px;height:46px;
  background:linear-gradient(180deg,transparent,var(--cyan));
  animation:dropline 2.4s var(--ease) infinite;
}
@keyframes dropline{
  0%{transform:scaleY(.25);transform-origin:top;opacity:.3}
  50%{transform:scaleY(1);transform-origin:top;opacity:1}
  100%{transform:scaleY(.25);transform-origin:top;opacity:.3}
}

/* ───────── Cards (services) ───────── */

.cards{
  display:grid;gap:20px;
  grid-template-columns:repeat(auto-fit,minmax(282px,1fr));
}
.card{
  position:relative;
  padding:30px 28px 32px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  transition:transform .4s var(--ease),border-color .4s var(--ease),background .4s var(--ease);
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:radial-gradient(420px 220px at 12% -12%,rgba(56,232,255,.14),transparent 70%);
  opacity:0;transition:opacity .4s var(--ease);
}
.card:hover{
  transform:translateY(-5px);
  border-color:rgba(56,232,255,.4);
  background:var(--glass-2);
}
.card:hover::before{opacity:1}
.card>*{position:relative}

.card-ix{
  width:46px;height:46px;margin-bottom:22px;
  display:grid;place-items:center;
  border:1px solid var(--line-2);border-radius:12px;
  background:rgba(56,232,255,.06);
  color:var(--cyan);
}
.card-ix svg{
  width:25px;height:25px;fill:none;stroke:currentColor;
  stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;
}
.card h3{margin-bottom:12px}
.card p{color:var(--muted);font-size:.94rem;margin:0}
.card ul{
  list-style:none;margin:22px 0 0;padding:0;
  border-top:1px solid var(--line);
}
.card li{
  font-size:.875rem;color:var(--muted);
  padding:11px 0 11px 20px;position:relative;
  border-bottom:1px solid var(--line);
  line-height:1.5;
}
.card li:last-child{border-bottom:0;padding-bottom:0}
.card li::before{
  content:"";position:absolute;left:2px;top:19px;
  width:7px;height:7px;border-radius:2px;
  border:1px solid var(--cyan);
}
.card li em{font-style:normal;color:var(--paper)}

/* ───────── Steps (process) ───────── */

.steps{
  list-style:none;margin:0;padding:0;
  display:grid;gap:1px;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.step{
  padding:32px 26px 34px;
  background:rgba(7,10,18,.66);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:background .4s var(--ease);
}
.step:hover{background:rgba(13,18,31,.86)}
.step-no{
  font-family:var(--f-display);font-size:.76rem;font-weight:700;
  letter-spacing:.16em;color:var(--cyan);
  display:block;margin-bottom:18px;
}
.step h3{margin-bottom:11px}
.step p{color:var(--muted);font-size:.9rem;margin:0}

/* ───────── Split (why / contact) ───────── */

.split{
  display:grid;gap:clamp(36px,5vw,72px);
  grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
  align-items:start;
}
.split .section-head{margin-bottom:0;position:sticky;top:110px}

.facts{list-style:none;margin:0;padding:0}
.facts li{
  padding:26px 0;
  border-top:1px solid var(--line);
}
.facts li:last-child{border-bottom:1px solid var(--line)}
.facts h3{margin-bottom:9px;display:flex;align-items:baseline;gap:12px}
.facts h3::before{
  content:"";flex:0 0 auto;width:14px;height:1px;background:var(--cyan);
  transform:translateY(-4px);
}
.facts p{color:var(--muted);font-size:.93rem;margin:0;padding-left:26px}

/* ───────── Tiers ───────── */

.tiers{
  display:grid;gap:20px;
  grid-template-columns:repeat(auto-fit,minmax(272px,1fr));
  align-items:start;
}
.tier{
  position:relative;
  padding:30px 28px;
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.tier-feature{
  border-color:rgba(56,232,255,.42);
  background:var(--glass-2);
  box-shadow:0 30px 70px -40px rgba(56,232,255,.55);
}
.tier-flag{
  position:absolute;top:-11px;left:28px;
  font-family:var(--f-display);font-size:.68rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;
  color:#04121a;background:linear-gradient(96deg,var(--cyan),var(--violet));
  padding:4px 11px;border-radius:999px;
}
.tier h3{margin-bottom:8px}
.tier-meta{
  font-family:var(--f-display);font-size:.8rem;color:var(--cyan);
  margin:0 0 16px;letter-spacing:.01em;
}
.tier>p{color:var(--muted);font-size:.93rem;margin:0}
.tier ul{list-style:none;margin:20px 0 0;padding:0}
.tier li{
  font-size:.875rem;color:var(--muted);
  padding:8px 0 8px 22px;position:relative;
}
.tier li::before{
  content:"";position:absolute;left:3px;top:15px;
  width:8px;height:4px;border-left:1.5px solid var(--cyan);border-bottom:1.5px solid var(--cyan);
  transform:rotate(-45deg);
}
.tier .btn{margin-top:26px;width:100%}

/* ───────── Section 04: the lead-to-quote sequence ─────────
   A line is drawn from the heading down into the featured card, a pulse
   runs it, the card's border traces itself, and the CTA charges up.
   Every step is timed off .is-live, which site.js adds once on entry.
   -------------------------------------------------------------------- */

#engagements .shell{position:relative}

.lead{
  position:absolute;left:0;top:0;
  width:100%;height:100%;
  pointer-events:none;overflow:visible;
  z-index:1;
}
.lead path{stroke-linecap:round;stroke-linejoin:round}

.lead-line{
  stroke:var(--line-2);stroke-width:1.5;
  stroke-dasharray:1;stroke-dashoffset:1;
}
.lead-pulse{
  stroke:var(--cyan);stroke-width:2;
  stroke-dasharray:.12 .88;stroke-dashoffset:1;
  opacity:0;
  filter:drop-shadow(0 0 6px rgba(56,232,255,.9));
}

#engagements.is-live .lead-line{
  animation:draw .7s var(--ease) .05s forwards;
}
#engagements.is-live .lead-pulse{
  animation:draw .75s var(--ease) .55s forwards, flash .75s linear .55s forwards;
}

/* border trace on the featured card */
.tier-feature{position:relative}
.tier-feature>*{position:relative;z-index:1}

.trace{
  position:absolute;left:0;top:0;width:100%;height:100%;
  pointer-events:none;overflow:visible;z-index:0;
}
.trace-line{
  stroke:rgba(56,232,255,.5);stroke-width:1.5;
  stroke-dasharray:1;stroke-dashoffset:1;
}
.trace-comet{
  stroke:var(--cyan);stroke-width:2;
  stroke-dasharray:.1 .9;stroke-dashoffset:1;
  opacity:0;
  filter:drop-shadow(0 0 7px rgba(56,232,255,.95));
}
#engagements.is-live .trace-line{
  animation:draw 1s var(--ease) .95s forwards;
}
#engagements.is-live .trace-comet{
  animation:draw 1.05s var(--ease) 1.45s forwards, flash 1.05s linear 1.45s forwards;
}

/* the CTA itself */
.cta-wrap{position:relative;margin-top:26px}
.tier .cta-wrap .btn{margin-top:0}

.cta-quote{position:relative;overflow:hidden;width:100%}
.cta-quote::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,
    transparent 34%, rgba(255,255,255,.62) 50%, transparent 66%);
  transform:translateX(-130%);
}
#engagements.is-live .cta-quote::after{
  animation:shine .9s var(--ease) 2.3s forwards;
}
#engagements.is-live .cta-quote{
  animation:bloom 4.6s var(--ease) 2.5s infinite;
}

.cta-ping{
  position:absolute;inset:0;border-radius:12px;
  border:1px solid var(--cyan);
  opacity:0;pointer-events:none;
}
#engagements.is-live .cta-ping{
  animation:ping 1.5s var(--ease) 2.45s 3;
}

@keyframes draw{to{stroke-dashoffset:0}}
@keyframes flash{
  0%{opacity:0}
  8%{opacity:1}
  86%{opacity:1}
  100%{opacity:0}
}
@keyframes shine{
  0%{transform:translateX(-130%)}
  100%{transform:translateX(130%)}
}
@keyframes bloom{
  0%,100%{box-shadow:0 10px 34px -12px rgba(56,232,255,.65)}
  50%{box-shadow:0 14px 44px -10px rgba(56,232,255,.95),0 0 0 1px rgba(56,232,255,.25)}
}
@keyframes ping{
  0%{opacity:.85;transform:scale(1)}
  70%{opacity:0;transform:scale(1.14)}
  100%{opacity:0;transform:scale(1.14)}
}

/* ───────── Contact ───────── */

.section-contact{padding-bottom:clamp(90px,10vw,140px)}
.split-contact{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}

.contact-meta{margin:38px 0 0;display:grid;gap:18px}
.contact-meta div{
  display:grid;gap:3px;
  padding-top:16px;border-top:1px solid var(--line);
}
.contact-meta dt{
  font-family:var(--f-display);font-size:.72rem;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--muted-2);
}
.contact-meta dd{margin:0;font-size:.96rem}
.contact-meta a{color:var(--cyan);text-decoration:none}
.contact-meta a:hover{text-decoration:underline}

.form{
  padding:clamp(24px,3vw,34px);
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--glass-2);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  display:grid;gap:18px;
}
.field{display:grid;gap:7px}
.field label{
  font-family:var(--f-display);font-size:.8rem;font-weight:500;
  letter-spacing:.04em;color:var(--paper);
}
.field .opt{color:var(--muted-2);font-weight:400}
.field input,.field select,.field textarea{
  font:inherit;font-size:.94rem;color:var(--paper);
  background:rgba(4,6,12,.6);
  border:1px solid var(--line-2);border-radius:11px;
  padding:12px 14px;width:100%;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.field textarea{resize:vertical;min-height:120px;line-height:1.6}
.field select{
  appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%238b97b0' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:11px;
  padding-right:38px;
}
.field select option{background:#0a0e18;color:var(--paper)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--cyan);background:rgba(4,6,12,.85);outline:none;
}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-2)}

.field.is-bad input,.field.is-bad textarea{border-color:#ff7b7b}
.err{margin:0;font-size:.8rem;color:#ff9b9b;min-height:0}
.field.is-bad .err{min-height:1.2em}

/* consent checkbox for optional on-device storage */
.field-check{margin:2px 0 0}
.check{
  display:flex;gap:11px;align-items:flex-start;cursor:pointer;
  font-size:.85rem;color:var(--muted);line-height:1.5;
}
.check input{
  flex:0 0 auto;width:17px;height:17px;margin:2px 0 0;
  accent-color:var(--cyan);cursor:pointer;
}
.check:hover{color:var(--paper)}

.form-privacy{
  margin:0;font-size:.8rem;color:var(--muted-2);line-height:1.55;
}
.form-privacy a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}

.form-note{
  margin:0;font-size:.86rem;color:var(--muted);text-align:center;min-height:1.2em;
}
.form-note.is-good{color:var(--cyan)}
.form-note.is-bad{color:#ff9b9b}

/* "Did you mean …" email repair */
.suggest{margin:2px 0 0;font-size:.82rem;color:var(--muted)}
.suggest button{
  font:inherit;font-weight:600;color:var(--cyan);
  background:none;border:0;padding:0;cursor:pointer;
  text-decoration:underline;text-underline-offset:3px;
}
.suggest button:hover{color:var(--paper)}

/* restored-draft notice */
.draft-bar{
  display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;
  margin:0;padding:10px 13px;
  font-size:.82rem;color:var(--muted);
  background:rgba(56,232,255,.07);
  border:1px solid rgba(56,232,255,.26);border-radius:11px;
}
.draft-bar button{
  font:inherit;color:var(--cyan);background:none;border:0;padding:0;
  cursor:pointer;text-decoration:underline;text-underline-offset:3px;
}

/* shown only when sending has failed outright */
.form-rescue{
  display:flex;flex-wrap:wrap;gap:6px 16px;justify-content:center;
  margin:0;font-size:.84rem;
}
.form-rescue button,.form-rescue a{
  font:inherit;color:var(--cyan);background:none;border:0;padding:0;
  cursor:pointer;text-decoration:underline;text-underline-offset:3px;
}

/* honeypot: off-screen rather than display:none, so bots still fill it */
.hp{
  position:absolute;left:-9999px;top:auto;
  width:1px;height:1px;overflow:hidden;
}

/* ───────── Legal / prose pages ───────── */

.page-head{padding-block:clamp(120px,14vw,180px) clamp(28px,4vw,44px)}
.page-head h1{font-size:clamp(2rem,4.6vw,3.2rem)}
.page-head .lede{margin-top:18px}

.prose{
  max-width:72ch;
  padding-bottom:clamp(70px,9vw,120px);
  font-size:.97rem;
}
.prose h2{
  font-size:1.32rem;
  margin:clamp(42px,5vw,60px) 0 14px;
  padding-top:clamp(24px,3vw,32px);
  border-top:1px solid var(--line);
}
.prose h3{margin:28px 0 8px;font-size:1rem}
.prose p{color:var(--muted);margin:0 0 14px}
.prose ul,.prose ol{color:var(--muted);margin:0 0 16px;padding-left:20px}
.prose li{margin-bottom:9px;line-height:1.6}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose strong{color:var(--paper);font-weight:600}
.prose dl{margin:0 0 16px}
.prose dt{color:var(--paper);font-weight:600;font-size:.92rem;margin-top:14px}
.prose dd{color:var(--muted);margin:4px 0 0}

.prose table{
  width:100%;border-collapse:collapse;margin:0 0 20px;
  font-size:.88rem;
}
.prose th,.prose td{
  text-align:left;padding:11px 12px;
  border-bottom:1px solid var(--line);
  color:var(--muted);vertical-align:top;
}
.prose th{color:var(--paper);font-family:var(--f-display);font-weight:600;font-size:.82rem}
.table-wrap{overflow-x:auto;margin-bottom:20px}

/* Anything the owner still has to supply is flagged, not invented. */
.todo{
  display:block;
  margin:0 0 16px;padding:13px 15px;
  border:1px dashed rgba(255,184,107,.5);border-radius:11px;
  background:rgba(255,184,107,.07);
  color:var(--amber);font-size:.86rem;line-height:1.55;
}
.todo strong{color:var(--amber)}

.updated{
  font-size:.82rem;color:var(--muted-2);
  margin:0 0 8px;
}

/* ───────── Footer ───────── */

.footer{
  position:relative;z-index:2;
  border-top:1px solid var(--line);
  background:rgba(4,6,11,.82);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding-top:52px;
}
.footer-inner{
  display:flex;flex-wrap:wrap;gap:34px;justify-content:space-between;
  padding-bottom:40px;
}
.footer-brand{max-width:36ch}
.footer-brand p{color:var(--muted-2);font-size:.88rem;margin:12px 0 0}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  font-size:.88rem;color:var(--muted);text-decoration:none;
  transition:color .25s var(--ease);
}
.footer-links a:hover{color:var(--cyan)}
.footer-base{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid var(--line);
  padding-block:22px 30px;
}
.footer-base p{margin:0;font-size:.8rem;color:var(--muted-2)}

/* ───────── Consent banner & preferences ─────────
   Reject is given the same weight as accept: same size, same row,
   no colour trickery, no cookie wall over the content.
   ------------------------------------------------------------- */

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

.consent-banner{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:120;
  max-width:760px;margin-inline:auto;
  padding:20px 22px;
  background:#0a0e18;
  border:1px solid var(--line-2);border-radius:var(--r-lg);
  box-shadow:0 30px 70px -24px rgba(0,0,0,.95);
  opacity:0;transform:translateY(14px);
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.consent-banner.is-in{opacity:1;transform:none}

.consent-copy h2{font-size:1.02rem;margin-bottom:8px}
.consent-copy p{margin:0;font-size:.86rem;color:var(--muted);line-height:1.6}
.consent-copy a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}

.consent-actions{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  margin-top:18px;
}
.consent-actions .btn{flex:0 0 auto}
.consent-link{
  background:none;border:0;padding:4px 2px;cursor:pointer;
  font:inherit;font-size:.84rem;color:var(--muted);
  text-decoration:underline;text-underline-offset:3px;
  margin-left:auto;
}
.consent-link:hover{color:var(--paper)}

/* preferences dialog */
.consent-modal{
  position:fixed;inset:0;z-index:130;
  display:none;align-items:center;justify-content:center;
  padding:18px;
}
.consent-modal.is-open{display:flex}
.consent-backdrop{position:absolute;inset:0;background:rgba(2,4,8,.82);backdrop-filter:blur(4px)}
.consent-dialog{
  position:relative;
  width:100%;max-width:580px;max-height:86vh;overflow-y:auto;
  padding:28px 26px 24px;
  background:#0a0e18;
  border:1px solid var(--line-2);border-radius:var(--r-lg);
  box-shadow:0 40px 90px -30px rgba(0,0,0,.95);
}
.consent-dialog h2{font-size:1.25rem;margin-bottom:10px}
.consent-intro{font-size:.86rem;color:var(--muted);margin:0 0 20px;line-height:1.6}

.consent-row{
  display:flex;gap:18px;align-items:flex-start;justify-content:space-between;
  padding:17px 0;border-top:1px solid var(--line);
}
.consent-row h3{font-size:.94rem;margin-bottom:5px}
.consent-row p{margin:0;font-size:.82rem;color:var(--muted);line-height:1.55}
.consent-always{
  flex:0 0 auto;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted-2);padding-top:3px;
}

.consent-switch{flex:0 0 auto;position:relative;cursor:pointer;padding-top:2px}
.consent-switch input{position:absolute;opacity:0;width:44px;height:25px;margin:0;cursor:pointer}
.consent-track{
  display:block;width:44px;height:25px;border-radius:999px;
  background:rgba(140,160,200,.22);
  border:1px solid var(--line-2);
  transition:background .25s var(--ease);
}
.consent-track::after{
  content:"";position:absolute;top:5px;left:4px;
  width:17px;height:17px;border-radius:50%;
  background:var(--muted);
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.consent-switch input:checked + .consent-track{background:rgba(56,232,255,.4)}
.consent-switch input:checked + .consent-track::after{
  transform:translateX(19px);background:var(--cyan);
}
.consent-switch input:focus-visible + .consent-track{outline:2px solid var(--cyan);outline-offset:3px}

.consent-dialog-actions{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;
  margin-top:24px;padding-top:20px;border-top:1px solid var(--line);
}
.consent-close{
  position:absolute;top:12px;right:14px;
  width:32px;height:32px;line-height:1;
  background:none;border:0;cursor:pointer;
  color:var(--muted);font-size:1.5rem;
}
.consent-close:hover{color:var(--paper)}

@media (max-width:560px){
  .consent-banner{left:10px;right:10px;bottom:10px;padding:18px}
  .consent-actions{flex-direction:column;align-items:stretch}
  .consent-actions .btn{width:100%;justify-content:center}
  .consent-link{margin:4px auto 0}
  .consent-dialog-actions{flex-direction:column-reverse}
  .consent-dialog-actions .btn{width:100%;justify-content:center}
}

/* ───────── Reveal on scroll ───────── */

.js .reveal{
  opacity:0;transform:translateY(22px);
  transition:opacity .85s var(--ease),transform .85s var(--ease);
}
.js .reveal.is-in{opacity:1;transform:none}

.cards .reveal:nth-child(2),.tiers .reveal:nth-child(2){transition-delay:.09s}
.cards .reveal:nth-child(3),.tiers .reveal:nth-child(3){transition-delay:.18s}
.steps .reveal:nth-child(2){transition-delay:.07s}
.steps .reveal:nth-child(3){transition-delay:.14s}
.steps .reveal:nth-child(4){transition-delay:.21s}
.facts .reveal:nth-child(2){transition-delay:.06s}
.facts .reveal:nth-child(3){transition-delay:.12s}
.facts .reveal:nth-child(4){transition-delay:.18s}
.facts .reveal:nth-child(5){transition-delay:.24s}

/* ───────── Responsive ───────── */

@media (max-width:900px){
  .nav-links{
    position:absolute;top:100%;left:16px;right:16px;
    flex-direction:column;gap:0;
    /* opaque, and no backdrop-filter: nesting one inside the nav's own
       backdrop-filter let page content bleed through the panel */
    background:#0a0e18;
    border:1px solid var(--line-2);border-radius:var(--r);
    box-shadow:0 24px 60px -20px rgba(0,0,0,.9);
    padding:8px;margin:10px 0 0;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  }
  .nav[data-open="true"] .nav-links{opacity:1;visibility:visible;transform:none}
  .nav-links a{padding:13px 14px;font-size:.96rem;border-radius:10px}
  .nav-links a::after{display:none}
  .nav-links a:hover{background:rgba(56,232,255,.08)}
  .nav-toggle{display:flex;order:3}
  .nav-inner .btn-sm{display:none}
  .nav-inner{gap:14px}
  .brand{margin-right:auto}

  .split,.split-contact{grid-template-columns:1fr}
  .split .section-head{position:static}
}

@media (max-width:560px){
  .shell{padding-inline:18px}
  .hero{padding-block:118px 80px}
  .scroll-hint{display:none}
  .facts p{padding-left:0}
  .footer-links{display:grid;grid-template-columns:1fr 1fr;gap:12px 18px}
}

/* ───────── Reduced motion ───────── */

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .reveal{opacity:1;transform:none}
  .scene canvas{display:none}
  .lead-line,.trace-line{stroke-dashoffset:0}
  .lead-pulse,.trace-comet,.cta-ping{display:none}
  .cta-quote::after{display:none}
}

/* ───────── Print ───────── */

@media print{
  .scene,.grain,.scroll-rail,.nav,.scroll-hint{display:none!important}
  body{background:#fff;color:#000}
  .card,.tier,.form,.step{background:#fff;border-color:#ccc;color:#000}
}