:root{
  --bg:#fbfbf8;--bg2:#f1f3ee;--ink:#121826;--ink2:#4b5563;--line:#e3e6df;
  --accent:#25F5FC;--accent2:#25F5FC;--accent-ink:#0b1220;--accent-text:#0aa3ab;
  --dark:#0b1220;--dark2:#111a2e;--dark-ink:#e6eaf2;--dark-ink2:#9aa6bd;
  --radius:14px;--max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--accent-text);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:750}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-text);margin-bottom:.8em}
.lead{font-size:1.15rem;color:var(--ink2);max-width:46rem}

/* nav */
header{position:sticky;top:0;z-index:20;background:rgba(251,251,248,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;font-size:1.1rem;color:var(--ink);display:flex;align-items:center;gap:.5rem}
.brand .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2))}
.nav ul{list-style:none;display:flex;gap:1.4rem;margin:0;padding:0;align-items:center}
.nav ul a{color:var(--ink);font-weight:500;font-size:.95rem}
.nav .burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:1.1rem}
.btn{display:inline-block;padding:.7rem 1.2rem;border-radius:10px;font-weight:650;border:1px solid transparent;cursor:pointer;font-size:.95rem}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:#0fdbe3}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--bg2)}
.dark .btn-ghost{border-color:#2a3650;color:var(--dark-ink)}
.dark .btn-ghost:hover{background:var(--dark2)}

/* sections */
section{padding:72px 0}
.hero{padding:96px 0 72px}
.hero h1{max-width:16ch}
.hero .cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.6rem}
.dark{background:var(--dark);color:var(--dark-ink)}
.dark h1,.dark h2,.dark h3{color:#fff}
.dark .lead,.dark p{color:var(--dark-ink2)}
.dark .eyebrow{color:var(--accent2)}
.dark a:not(.btn){color:var(--accent2)}
.alt{background:var(--bg2)}

.grid{display:grid;gap:1.2rem}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.card h3{margin-top:.2rem}
.card p{color:var(--ink2);margin-bottom:0}
.card .tag{display:inline-block;font-size:.75rem;font-weight:700;color:var(--accent-text);background:#e3fdfe;border-radius:999px;padding:.15rem .6rem;margin-bottom:.6rem}
.dark .card{background:var(--dark2);border-color:#223050}
.dark .card p{color:var(--dark-ink2)}
.dark .card .tag{background:#0d3a3d;color:var(--accent2)}
a.card{display:block;color:inherit}
a.card:hover{text-decoration:none;border-color:var(--accent)}

.steps{counter-reset:s;display:grid;gap:1rem;grid-template-columns:repeat(5,1fr)}
.steps div{position:relative;padding:1.2rem 1rem 1rem;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.steps div::before{counter-increment:s;content:counter(s);display:inline-block;width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:.85rem;text-align:center;line-height:28px;margin-bottom:.6rem}
.steps h3{font-size:1rem}
.steps p{font-size:.9rem;color:var(--ink2);margin:0}

.logos{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}
.logos span{border:1px solid var(--line);border-radius:999px;padding:.35rem .9rem;font-size:.9rem;font-weight:600;background:#fff;color:var(--ink2)}
.dark .logos span{background:var(--dark2);border-color:#223050;color:var(--dark-ink)}

.stat{font-size:2rem;font-weight:800;color:var(--accent);line-height:1}
.stat small{display:block;font-size:.85rem;font-weight:500;color:var(--ink2);margin-top:.3rem}

table{width:100%;border-collapse:collapse;font-size:.95rem;margin:1rem 0}
th,td{text-align:left;padding:.7rem .6rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:700;color:var(--ink)}
.dark th,.dark td{border-color:#223050}

.prose{max-width:46rem}
.prose h2{margin-top:2.2rem}
.prose ul{padding-left:1.2rem;color:var(--ink2)}
.prose li{margin:.3rem 0}
.callout{border-left:4px solid var(--accent);background:#e3fdfe;padding:1rem 1.2rem;border-radius:0 10px 10px 0;margin:1.2rem 0}
.callout p{margin:0;color:var(--ink)}

/* use-case spec */
.spec{display:grid;grid-template-columns:200px 1fr;gap:.6rem 1.2rem;border-top:1px solid var(--line);padding-top:1rem;margin-top:1rem}
.spec dt{font-weight:700}
.spec dd{margin:0;color:var(--ink2)}

/* form */
form.intake{display:grid;gap:1rem;max-width:40rem}
form.intake label{display:grid;gap:.35rem;font-weight:600;font-size:.95rem}
form.intake input,form.intake select,form.intake textarea{font:inherit;padding:.7rem .8rem;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
form.intake textarea{min-height:120px}
form.intake .row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.notice{padding:1rem;border-radius:10px;background:#e3fdfe;color:var(--ink);display:none}

footer{border-top:1px solid var(--line);padding:40px 0;font-size:.9rem;color:var(--ink2)}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:1.5rem}
footer ul{list-style:none;padding:0;margin:.4rem 0 0}
footer li{margin:.25rem 0}
footer a{color:var(--ink2)}
footer .fine{margin-top:1.6rem;font-size:.8rem}

@media (max-width:900px){
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  section{padding:52px 0}
  .hero{padding:64px 0 48px}
  .g2,.g3,.g4,.steps{grid-template-columns:1fr}
  .spec{grid-template-columns:1fr}
  form.intake .row{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr}
  .nav ul{display:none;position:absolute;left:0;right:0;top:64px;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:1rem 20px;gap:.9rem}
  .nav ul.open{display:flex}
  .nav .burger{display:block}
}

/* video hero */
.hero-video{position:relative;overflow:hidden;min-height:min(92vh,860px);display:flex;align-items:center;padding:120px 0 96px}
.hero-video video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero-video .hero-shade{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(6,10,20,.78) 0%,rgba(6,10,20,.55) 45%,rgba(6,10,20,.15) 100%),linear-gradient(180deg,rgba(6,10,20,.35) 0%,rgba(6,10,20,0) 40%,rgba(6,10,20,.55) 100%)}
.hero-video .wrap{position:relative;z-index:2;width:100%}
.hero h1.punch{max-width:none;font-size:clamp(1.4rem,3vw,2.5rem);font-weight:800;line-height:1.2;margin:0 0 1.6rem}
.punch{position:relative;min-height:3.2em}
.punch span{position:absolute;left:0;top:0;display:block;opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease;pointer-events:none}
.punch span.on{position:relative;opacity:1;transform:none;pointer-events:auto}
.punch span.off{opacity:0;transform:translateY(-10px)}
@media (prefers-reduced-motion:reduce){.punch span{transition:none}}
.hero-note{margin-top:2rem;max-width:40rem;font-size:.9rem;color:var(--dark-ink2)}
.promises{counter-reset:p;display:grid;grid-template-columns:repeat(5,1fr);gap:1rem;margin-bottom:1.2rem}
.promises div{border-top:3px solid var(--accent);padding-top:1rem}
.promises div::before{counter-increment:p;content:"0" counter(p);display:block;font-weight:800;color:var(--accent-text);font-size:.85rem;letter-spacing:.08em;margin-bottom:.4rem}
.promises h3{font-size:1rem}
.promises p{font-size:.92rem;color:var(--ink2);margin:0}
@media (max-width:900px){.promises{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.promises{grid-template-columns:1fr}.hero-video{min-height:auto;padding:80px 0 56px}}