:root{--teal:#00d3a1;--ink:#0b1220;--muted:#5b6475;--line:#e5e7eb;--soft:#f6f8f9;--r:16px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:6px}
.wrap{width:min(1120px,100% - 40px);margin-inline:auto}
section{padding:72px 0}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0}
h2{font-size:clamp(1.7rem,4vw,2.4rem);margin-bottom:12px}
h2::after{content:"";display:block;width:40px;height:3px;background:var(--teal);margin-top:14px;border-radius:2px}
.lead{color:var(--muted);max-width:60ch;font-size:1.05rem;margin:0 0 36px}
.eyebrow{font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.nav img{height:34px;width:auto}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.nav ul a{text-decoration:none;color:var(--muted);font-size:.95rem}
.nav ul a:hover{color:var(--ink)}
.btn{display:inline-block;padding:11px 20px;border-radius:999px;font-weight:600;font-size:.95rem;text-decoration:none;background:var(--teal);color:var(--ink);border:1px solid var(--teal);transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,211,161,.3)}
.btn.ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{box-shadow:0 6px 18px rgba(11,18,32,.08)}
.nav .btn{padding:8px 16px;font-size:.88rem}
@media(max-width:760px){.nav ul{display:none}}

/* HERO — light; video full-bleed; motion stays on the RIGHT (~45%), copy LEFT */
.hero{position:relative;isolation:isolate;min-height:min(88vh,860px);padding:88px 0 72px;overflow:hidden;background:#fff}
.hero-video{position:absolute;inset:0;z-index:0;pointer-events:none;
  background:#fff url("assets/video/kaiapay_hero_landing_poster.jpg") right center / cover no-repeat}
.hero-video video{
  width:100%;height:100%;object-fit:cover;object-position:right center;
  opacity:0;transition:opacity 2.8s ease}
.hero-veil{position:absolute;inset:0;background:
  /* left 55% nearly solid for copy; right opens to show UI animation */
  linear-gradient(90deg,
    rgba(255,255,255,.98) 0%,
    rgba(255,255,255,.96) 38%,
    rgba(255,255,255,.72) 52%,
    rgba(255,255,255,.18) 68%,
    rgba(255,255,255,.06) 100%),
  linear-gradient(to top,rgba(255,255,255,.55) 0%,transparent 28%);
  transition:opacity 2.8s ease}
.hero.video-dim .hero-video video{opacity:.22}
.hero.video-rising .hero-video video{opacity:.55}
.hero.video-ready .hero-video video{opacity:.92}
.hero.video-ready .hero-veil{opacity:1}
@media(prefers-reduced-motion:reduce){
  .hero-video video{opacity:.45!important;transition:none}
}

.hero-grid{position:relative;z-index:1;display:grid;gap:40px;align-items:center;min-height:min(70vh,640px)}
@media(min-width:900px){.hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}}
.hero-copy{max-width:560px}
.hero h1{font-size:clamp(2rem,5vw,3.35rem);margin:14px 0 18px;color:var(--ink);
  text-shadow:0 1px 0 rgba(255,255,255,.95),0 8px 28px rgba(0,211,161,.18),0 2px 12px rgba(11,18,32,.08)}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 78%,rgba(0,211,161,.55) 78%);
  text-shadow:0 0 24px rgba(0,211,161,.35),0 1px 0 rgba(255,255,255,.95)}
.hero-lead{color:var(--muted);font-size:1.1rem;max-width:48ch;margin:0 0 14px;
  text-shadow:0 1px 0 rgba(255,255,255,.98)}
.hero .real{color:var(--ink);font-size:1rem;border-left:3px solid var(--teal);padding-left:14px;margin:22px 0 28px;
  text-shadow:0 1px 0 rgba(255,255,255,.98)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.badge{display:inline-block;font-size:.8rem;font-weight:600;border:1px solid var(--line);border-radius:999px;padding:4px 12px;margin-top:16px;background:rgba(255,255,255,.82);backdrop-filter:blur(6px)}
.hero-spacer{min-height:220px}
@media(min-width:900px){.hero-spacer{min-height:420px}}

.alt{background:var(--soft);border-block:1px solid var(--line)}
.steps{list-style:none;margin:0;padding:0 0 12px;display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;counter-reset:s}
.steps li{flex:0 0 78%;scroll-snap-align:start;counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}
.steps li::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;font-weight:700;font-size:.9rem;margin-bottom:16px;box-shadow:0 0 0 4px rgba(0,211,161,.25)}
.steps h3{font-size:1.1rem;margin-bottom:8px}
.steps p{margin:0;color:var(--muted);font-size:.95rem}
@media(min-width:640px){.steps li{flex-basis:44%}}
@media(min-width:960px){.steps{display:grid;grid-template-columns:repeat(3,1fr);overflow:visible}}
.shots{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.shot{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:0 8px 24px rgba(11,18,32,.05)}
.shot img{width:100%;aspect-ratio:4/3;object-fit:cover;object-position:top;border-bottom:1px solid var(--line);background:var(--soft)}
.shot figcaption{padding:16px 18px}
.shot code{display:block;font:500 .9rem/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px}
.shot small{color:var(--muted)}
.note{color:var(--muted);font-size:.85rem;margin-top:20px}
.dev{display:grid;gap:20px}
@media(min-width:760px){.dev{grid-template-columns:1fr 1fr}}
.card{border:1px solid var(--line);border-radius:var(--r);padding:28px;background:#fff}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);margin:0 0 14px}
.card pre{margin:0;background:var(--ink);color:#e6fff8;border-radius:12px;padding:16px;overflow-x:auto;font-size:.85rem;line-height:1.6}
.card .tag{font:600 .75rem ui-monospace,monospace;color:#047857;background:rgba(0,211,161,.14);padding:3px 8px;border-radius:6px;display:inline-block;margin-bottom:12px}
.about{display:grid;gap:36px;align-items:center}
@media(min-width:760px){.about{grid-template-columns:240px 1fr}}
.about img{width:200px;height:200px;border-radius:50%;object-fit:cover;border:1px solid var(--line);box-shadow:0 0 0 6px rgba(0,211,161,.18)}
.about p{color:var(--muted);max-width:60ch}
.links{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:.9rem}
footer .wrap{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center}
footer img{height:30px;width:auto}
footer nav{display:flex;gap:20px}
footer a{text-decoration:none}footer a:hover{color:var(--ink);text-decoration:underline}

/* LEGAL / DOC pages (terminos.html, privacidad.html) */
.doc{padding:56px 0 72px}
.doc .wrap{max-width:760px}
.doc h1{font-size:clamp(1.9rem,4.5vw,2.6rem);margin:10px 0 8px}
.doc .updated{color:var(--muted);font-size:.92rem;margin:0 0 24px}
.doc .beta-note{background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--teal);border-radius:10px;padding:14px 16px;font-size:.95rem;margin:0 0 36px}
.doc h2{font-size:1.25rem;margin:36px 0 10px}
.doc h2::after{width:28px;height:2px;margin-top:10px}
.doc p,.doc li{color:#2a3343}
.doc ul{padding-left:22px}
.doc li{margin-bottom:6px}
.doc a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--teal);text-underline-offset:3px}
.doc a:hover{text-decoration-thickness:2px}
.doc code{font:500 .9em ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:1px 6px}