/* Help a Human — invitation / registration. Warm, illustrated, animated, lean. */
:root{
  --inv-ink:#16202a;--inv-muted:#5f6d7a;--inv-line:#e6ebf0;--inv-bg:#f6f9fb;--inv-card:#fff;
  --inv-green:#0a8a5f;--inv-green-d:#076c4a;--inv-accent:#1f7ae0;--inv-warm:#fff7ee;--inv-gold:#c9893a;--inv-r:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.inv{margin:0;background:var(--inv-bg);color:var(--inv-ink);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--inv-green);text-decoration:none}
h1{font-size:clamp(2.1rem,5.2vw,3.5rem);line-height:1.08;letter-spacing:-.02em;margin:.1em 0 .35em}
.inv-h2{font-size:clamp(1.5rem,3.2vw,2.2rem);letter-spacing:-.01em;text-align:center;margin:0 0 .3em}
.inv-wrap{max-width:1040px;margin:0 auto;padding:0 1.2rem}
.inv-section{padding:3rem 1.2rem}
.inv-section--center{text-align:center}
.inv-lead{text-align:center;color:var(--inv-muted);max-width:560px;margin:0 auto 1.8rem;font-size:1.08rem}

/* Buttons */
.inv-btn{display:inline-block;padding:.78rem 1.35rem;border-radius:999px;font-weight:700;border:1px solid var(--inv-line);
  background:#fff;color:var(--inv-ink);cursor:pointer;transition:transform .15s,box-shadow .15s,filter .15s}
.inv-btn:hover{transform:translateY(-2px);text-decoration:none}
.inv-btn--primary{background:linear-gradient(135deg,var(--inv-green),var(--inv-green-d));border-color:transparent;color:#fff;box-shadow:0 10px 26px rgba(10,138,95,.30)}
.inv-btn--primary:hover{filter:brightness(1.06);box-shadow:0 14px 32px rgba(10,138,95,.38)}
.inv-btn--ghost{background:rgba(255,255,255,.92)}
.inv-btn--lg{padding:.98rem 1.7rem;font-size:1.06rem;margin:.3rem .3rem 0 0}
.inv-btn--sm{padding:.45rem .95rem;font-size:.9rem}

/* Nav */
.inv-nav{position:sticky;top:0;z-index:40;background:rgba(246,249,251,.96);border-bottom:1px solid var(--inv-line)}
.inv-nav__in{display:flex;align-items:center;justify-content:space-between;padding:.7rem 1.2rem}
.inv-brand{font-weight:800;letter-spacing:-.01em;display:flex;align-items:center;gap:.5rem}
.inv-brand__dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--inv-green),var(--inv-accent));box-shadow:0 0 0 4px rgba(10,138,95,.14)}

/* Hero */
.inv-hero{position:relative;overflow:hidden;padding:2.6rem 1rem 2rem}
.inv-hero__grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:2rem;align-items:center}
.inv-eyebrow{color:var(--inv-gold);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;margin:0 0 .5rem}
.inv-sub{color:var(--inv-muted);font-size:1.14rem;max-width:560px;margin:.3rem 0 1.3rem}
.inv-hero__cta{margin-bottom:1rem}
.inv-trust{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;color:var(--inv-muted);font-size:.9rem;font-weight:600}
.inv-hero__glow{position:absolute;inset:-40% -10% auto -10%;height:560px;z-index:1;pointer-events:none;
  background:radial-gradient(closest-side,rgba(10,138,95,.18),transparent 70%),radial-gradient(closest-side,rgba(31,122,224,.14),transparent 70%),radial-gradient(closest-side,rgba(201,137,58,.12),transparent 70%);
  background-position:18% 0,78% 12%,50% 30%;background-repeat:no-repeat;background-size:55% 100%,50% 90%,40% 80%;
  }
@keyframes invglow{to{transform:translateY(22px) scale(1.06)}}

/* Phone mock */
.inv-hero__art{position:relative;display:flex;justify-content:center}
.inv-phone{position:relative;width:240px;background:#0e1622;border-radius:34px;padding:10px;box-shadow:0 30px 70px rgba(20,32,42,.28);border:1px solid #20303f}
.inv-phone--sm{width:200px}
.inv-phone__notch{position:absolute;top:14px;left:50%;transform:translateX(-50%);width:80px;height:7px;border-radius:99px;background:#28384a;z-index:3}
.inv-phone__screen{background:#fff;border-radius:26px;overflow:hidden;padding:14px}
.inv-ph-hero{height:84px;border-radius:14px;background:linear-gradient(135deg,#cfe9df,#a9d6c4)}
.inv-ph-name{margin:.6rem 0 .3rem}.inv-ph-name b{display:block;font-size:.95rem}.inv-ph-name i{color:var(--inv-muted);font-size:.78rem;font-style:normal}
.inv-ph-prog{height:9px;border-radius:99px;background:#e9eef2;overflow:hidden;margin:.5rem 0 .4rem}
.inv-ph-prog span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--inv-green),var(--inv-green-d));animation:invfill 2.6s ease-in-out infinite alternate}
@keyframes invfill{from{width:30%}to{width:74%}}
.inv-ph-stats{display:flex;align-items:baseline;gap:.4rem;font-size:.78rem;color:var(--inv-muted)}
.inv-ph-stats em{font-style:normal;font-weight:800;color:var(--inv-ink);font-size:1.1rem}
.inv-ph-btn{margin:.6rem 0 .5rem;text-align:center;background:linear-gradient(135deg,var(--inv-green),var(--inv-green-d));color:#fff;border-radius:10px;padding:.5rem;font-weight:700;font-size:.85rem}
.inv-ph-row{display:flex;gap:6px}.inv-ph-row span{flex:1;height:34px;border-radius:8px;background:#f1f4f7}
.inv-chip{position:absolute;background:#fff;border:1px solid var(--inv-line);border-radius:12px;padding:.5rem .7rem;font-size:.82rem;font-weight:700;box-shadow:0 12px 30px rgba(20,32,42,.14)}
.inv-chip--1{top:14%;left:-6%}.inv-chip--2{bottom:14%;right:-4%}
.inv-float{animation:invbob 6s ease-in-out infinite}
.inv-float2{animation:invbob 5s ease-in-out infinite .4s}
.inv-float3{animation:invbob 7s ease-in-out infinite .9s}
@keyframes invbob{50%{transform:translateY(-12px)}}

/* Note */
.inv-note{margin-top:-.4rem}
.inv-note__card{display:flex;gap:1rem;background:var(--inv-warm);border:1px solid #f0dcc0;border-left:4px solid var(--inv-gold);border-radius:16px;padding:1.2rem 1.4rem;max-width:780px;margin:0 auto}
.inv-note__avatar{font-size:1.6rem}
.inv-note__label{color:var(--inv-gold);font-weight:800;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:.3rem}
.inv-note__body{font-size:1.08rem}

/* Steps */
.inv-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1rem}
.inv-step{background:var(--inv-card);border:1px solid var(--inv-line);border-radius:var(--inv-r);padding:1.2rem;transition:transform .2s,box-shadow .2s}
.inv-step:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(20,32,42,.10)}
.inv-step__n{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--inv-green),var(--inv-green-d));margin-bottom:.6rem}
.inv-step h3{font-size:1.05rem;margin:.2rem 0}.inv-step p{color:var(--inv-muted);margin:0;font-size:.94rem}.inv-step em{color:var(--inv-green-d);font-style:normal;font-weight:700}

/* Features */
.inv-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-top:1.4rem}
.inv-feat{background:var(--inv-card);border:1px solid var(--inv-line);border-radius:var(--inv-r);padding:1.2rem;transition:transform .2s,box-shadow .2s}
.inv-feat:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(20,32,42,.10)}
.inv-feat__ic{font-size:1.8rem}.inv-feat h3{font-size:1.04rem;margin:.45rem 0 .2rem}.inv-feat p{color:var(--inv-muted);margin:0;font-size:.93rem}.inv-feat em{color:var(--inv-green-d);font-style:normal;font-weight:700}

/* Community + network mock */
.inv-community{background:linear-gradient(180deg,#0e1622,#132233);color:#eaf1f7;padding:3.2rem 1.2rem;margin:1rem 0}
.inv-community__grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center}
.inv-community .inv-eyebrow{color:#ffd9a3}
.inv-community .inv-h2{text-align:left;color:#fff}
.inv-ticks{list-style:none;margin:1rem 0 1.4rem;padding:0}
.inv-ticks li{position:relative;padding-left:1.7rem;margin:.7rem 0;color:#c4d3e0}
.inv-ticks li:before{content:"✓";position:absolute;left:0;top:0;color:#49d18a;font-weight:800}
.inv-ticks b{color:#fff}
.inv-net{position:relative;aspect-ratio:1;max-width:340px;margin:0 auto;width:100%}
.inv-net__center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:74px;height:74px;border-radius:50%;display:grid;place-items:center;font-size:1.6rem;font-weight:800;color:#04110f;background:linear-gradient(135deg,#49d18a,#0a8a5f);box-shadow:0 0 0 8px rgba(73,209,138,.16);z-index:3}
.inv-node{position:absolute;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:#1b2c3e;border:1px solid #2c4156;font-size:1.2rem;z-index:2}
.inv-node--1{top:4%;left:42%;animation-delay:.0s}.inv-node--2{top:24%;right:6%;animation-delay:.5s}
.inv-node--3{bottom:20%;right:8%;animation-delay:1s}.inv-node--4{bottom:2%;left:44%;animation-delay:1.4s}
.inv-node--5{bottom:22%;left:6%;animation-delay:.8s}.inv-node--6{top:24%;left:8%;animation-delay:.3s}
.inv-net__lines{position:absolute;inset:0;width:100%;height:100%}
.inv-ring{fill:none;stroke:rgba(73,209,138,.28);stroke-width:1.5;stroke-dasharray:5 7}
.inv-ring--2{stroke:rgba(31,122,224,.28)}
@keyframes invspin{to{transform:rotate(360deg)}}

/* Thank-you mock */
.inv-thankrow{display:flex;gap:1.6rem;align-items:center;justify-content:center;flex-wrap:wrap;text-align:left;margin-top:1rem}
.inv-thankrow__txt{max-width:340px;color:var(--inv-muted)}
.inv-ty{padding:0}.inv-ty__video{height:150px;background:linear-gradient(135deg,#2b3a4d,#16202a);display:grid;place-items:center}
.inv-play{width:0;height:0;border-style:solid;border-width:13px 0 13px 22px;border-color:transparent transparent transparent #fff;filter:drop-shadow(0 0 0 rgba(255,255,255,.6));position:relative}
.inv-play:before{content:"";position:absolute;left:-34px;top:-30px;width:60px;height:60px;border-radius:50%;border:2px solid rgba(255,255,255,.5);animation:invpulse 2s ease-out infinite}
@keyframes invpulse{0%{transform:scale(.7);opacity:.9}100%{transform:scale(1.3);opacity:0}}
.inv-ty__cap{padding:.7rem;font-size:.85rem;text-align:center}

/* Control vs moderation */
.inv-cols{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1.2rem}
.inv-col{background:var(--inv-card);border:1px solid var(--inv-line);border-radius:var(--inv-r);padding:1.2rem 1.3rem}
.inv-col--you{border-top:3px solid var(--inv-green)}.inv-col--mod{border-top:3px solid var(--inv-gold)}
.inv-col h3{font-size:1.05rem}.inv-col ul{margin:.4rem 0 0;padding-left:1.1rem;color:var(--inv-muted)}.inv-col li{margin:.35rem 0}

/* Register */
.inv-register{padding-bottom:3.6rem}
.inv-reg__card{max-width:560px;margin:0 auto;background:var(--inv-card);border:1px solid var(--inv-line);border-radius:var(--inv-r);padding:1.7rem 1.6rem;box-shadow:0 22px 60px rgba(20,32,42,.10)}
.inv-reg__lead{color:var(--inv-muted);margin-top:0}
.inv-form{display:flex;flex-direction:column;gap:.85rem}
.inv-form label>span{display:block;font-size:.85rem;color:var(--inv-muted);margin-bottom:.25rem}
.inv-form input[type=text],.inv-form input[type=email],.inv-form input[type=password]{width:100%;padding:.72rem .85rem;border:1px solid var(--inv-line);border-radius:11px;font:inherit}
.inv-form input:focus{outline:none;border-color:var(--inv-green);box-shadow:0 0 0 3px rgba(10,138,95,.12)}
.inv-check{display:flex;gap:.6rem;align-items:flex-start;font-size:.92rem;background:#f7faf8;border:1px solid var(--inv-line);border-radius:11px;padding:.7rem .8rem}
.inv-check input{margin-top:.2rem}
.inv-error{background:#fdecec;border:1px solid #f5c2c2;color:#b3261e;padding:.7rem .9rem;border-radius:11px}
.inv-fineprint{color:var(--inv-muted);font-size:.85rem;text-align:center;margin:.2rem 0 0}
.inv-pact{font-weight:700;color:var(--inv-ink);margin:.4rem 0 -.2rem;font-size:.95rem}
.inv-gate{background:var(--inv-warm);border:1px solid #f0dcc0;border-left:4px solid var(--inv-gold);border-radius:12px;padding:.85rem 1rem;margin:.2rem 0 .6rem;font-size:.92rem;line-height:1.5}
/* Launch steps explainer */
.inv-costsum{margin-top:1.2rem;text-align:center;background:linear-gradient(180deg,#eef9f3,#fff);border:1px solid #cfe9df;border-radius:var(--inv-r);padding:1.1rem 1.2rem}
.inv-costsum__total{display:block;font-size:2.2rem;font-weight:800;letter-spacing:-.02em;color:var(--inv-green-d);line-height:1}
.inv-costsum__lbl{display:block;font-size:.9rem;font-weight:700;color:var(--inv-ink);margin-top:.25rem}
.inv-costsum__break{display:block;font-size:.9rem;color:var(--inv-muted);margin-top:.4rem}
.inv-costsum__break strong{color:var(--inv-ink)}
.inv-launch{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-top:1.2rem}
.inv-launch__step{position:relative;background:var(--inv-card);border:1px solid var(--inv-line);border-radius:var(--inv-r);padding:1.4rem 1.2rem 1.2rem;box-shadow:0 10px 30px rgba(20,32,42,.06)}
.inv-launch__step--free{background:linear-gradient(180deg,#eef9f3,#fff);border-color:#cfe9df}
.inv-launch__n{position:absolute;top:-15px;left:1.2rem;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--inv-green),var(--inv-green-d));box-shadow:0 4px 12px rgba(10,138,95,.3)}
.inv-launch__step h3{margin:.4rem 0 .4rem;font-size:1.05rem}
.inv-launch__step p{margin:0 0 .7rem;color:var(--inv-muted);font-size:.92rem;line-height:1.55}
.inv-launch__amt{display:inline-block;font-weight:800;font-size:.82rem;color:var(--inv-green-d);background:#eaf6f1;border-radius:999px;padding:.25rem .7rem}
.inv-disclaimer{max-width:720px;margin:1.2rem auto 0;text-align:center;font-size:.82rem;color:var(--inv-muted);line-height:1.55;background:#f7faf8;border:1px solid var(--inv-line);border-radius:12px;padding:.9rem 1.1rem}

/* Founder / why-this-exists */
.inv-founder__card{display:flex;gap:1.6rem;align-items:flex-start;max-width:880px;margin:0 auto;
  background:var(--inv-card);border:1px solid var(--inv-line);border-radius:var(--inv-r);
  padding:1.8rem 1.9rem;box-shadow:0 18px 50px rgba(20,32,42,.08)}
.inv-founder__side{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;gap:.6rem}
.inv-founder__avatar{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;font-size:2.6rem;
  background:var(--inv-warm);border:1px solid #f0dcc0;overflow:hidden}
.inv-founder__avatar--photo{padding:0;background:#e9eef2}
.inv-founder__avatar--photo img{width:100%;height:100%;object-fit:cover;display:block}
.inv-founder__badge{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;
  color:var(--inv-gold);background:var(--inv-warm);border:1px solid #f0dcc0;border-radius:999px;padding:.25rem .6rem;white-space:nowrap}
.inv-founder__body p{margin:.55rem 0;color:var(--inv-ink);line-height:1.6}
.inv-founder__letter{margin:1.1rem 0;padding:1.1rem 1.3rem;background:var(--inv-warm);
  border-left:4px solid var(--inv-gold);border-radius:0 14px 14px 0}
.inv-founder__letter p{margin:0;font-style:italic;line-height:1.7;font-size:1.02rem}
.inv-founder__letter footer{margin-top:.7rem;font-style:normal;font-weight:800;color:var(--inv-gold);font-size:.9rem}
.inv-founder__sign{font-weight:800;color:var(--inv-ink);margin-top:1rem !important}
.inv-founder__link{color:var(--inv-muted);font-size:.92rem;margin-top:-.2rem !important}
@media(max-width:640px){.inv-founder__card{flex-direction:column;gap:1rem;padding:1.4rem}
  .inv-founder__side{flex-direction:row}}

/* Done / expired */
.inv-done{min-height:100vh;display:grid;place-items:center;padding:1.2rem}
.inv-done__card{background:#fff;border:1px solid var(--inv-line);border-radius:20px;padding:2.4rem;text-align:center;max-width:480px;box-shadow:0 22px 60px rgba(20,32,42,.12)}
.inv-done__check{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;margin:0 auto 1rem;font-size:2rem;color:#fff;background:linear-gradient(135deg,var(--inv-green),var(--inv-green-d))}
.inv-foot{border-top:1px solid var(--inv-line);background:#fff;padding:1.4rem 0;text-align:center;color:var(--inv-muted);font-size:.9rem}

/* Reveal */
.reveal-on [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal-on [data-reveal].is-in{opacity:1;transform:none}

@media(max-width:820px){
  .inv-hero__grid,.inv-community__grid{grid-template-columns:1fr}
  .inv-hero__art{margin-top:1.4rem}.inv-cols{grid-template-columns:1fr}
  .inv-community .inv-h2{text-align:center}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1!important;transform:none!important;transition:none}
}

/* Performance: skip rendering offscreen sections until scrolled near. */
.inv-section,.inv-community,.inv-register{content-visibility:auto;contain-intrinsic-size:1px 520px}