/* AI Ninjas site CSS (version 2): pure black and white, system fonts, no external requests. */
:root{--bg:#000;--bg2:#0a0a0a;--bg3:#111;--fg:#fff;--mute:#a3a3a3;--rule:rgba(255,255,255,.14);--r:2px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--fg)}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:640px}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:#000;padding:10px 14px;z-index:100}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid #fff;outline-offset:3px}
h1,h2,h3{font-weight:800;letter-spacing:-.02em;line-height:1.08;margin:0}
h1{font-size:clamp(2.3rem,7.5vw,4.6rem)}
h2{font-size:clamp(1.6rem,4.4vw,2.7rem)}
h2::after{content:"";display:block;width:64px;height:1px;background:#fff;margin-top:18px;transform:skewX(-35deg)}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--mute);margin:0 0 14px}
.lead{font-size:1.1rem;color:var(--mute);max-width:56ch}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:var(--r);font-weight:700;font-size:.95rem;text-decoration:none;border:1px solid #fff;transition:background .15s,color .15s}
.btn--primary{background:#fff;color:#000}
.btn--primary:hover{background:#d4d4d4;border-color:#d4d4d4}
.btn--ghost{background:transparent;color:#fff}
.btn--ghost:hover{background:#fff;color:#000}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(0,0,0,.92);border-bottom:1px solid var(--rule);backdrop-filter:blur(8px)}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;letter-spacing:-.01em}
.brand img{border-radius:var(--r)}
.nav ul{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:22px}
.nav a:not(.btn){text-decoration:none;color:var(--mute);font-size:.92rem;font-weight:600;min-height:24px;display:inline-block}
.nav a:not(.btn):hover{color:#fff}
.nav .btn{min-height:40px;padding:0 16px}
.nav__toggle{display:none;background:none;border:1px solid var(--rule);color:#fff;border-radius:var(--r);min-height:44px;padding:0 14px;font:inherit;font-weight:600;cursor:pointer}
section{padding:72px 0;border-bottom:1px solid var(--rule)}
.hero{padding:96px 0 88px;background:var(--bg)}
.hero p.lead{margin:24px 0 0}
.mission{background:var(--bg2)}
.mission h2{max-width:20ch}
.mission .lead{margin:22px 0 0}
.services{background:var(--bg)}
.rows{list-style:none;margin:32px 0 0;padding:0;border-top:1px solid var(--rule)}
.rows li{display:grid;grid-template-columns:56px 1fr;gap:12px;align-items:baseline;padding:16px 0;border-bottom:1px solid var(--rule);font-size:1.05rem}
.rows b{font-weight:800;color:var(--mute);letter-spacing:.1em;font-size:.85rem}
.tools{background:var(--bg3)}
.chips{list-style:none;margin:30px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:12px}
.chip{display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:0 18px;border:1px solid var(--rule);border-radius:var(--r);background:#000;font-weight:700;font-size:.95rem}
.chip img{height:24px;width:24px;object-fit:contain}
.fine{font-size:.82rem;color:var(--mute);margin:22px 0 0}
.steps{list-style:none;margin:32px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--rule)}
.steps li{padding:24px;border-right:1px solid var(--rule);color:var(--mute)}
.steps li:last-child{border-right:0}
.steps strong{display:block;color:#fff;font-size:1.15rem;font-weight:800;margin-bottom:6px}
.how{background:var(--bg2)}
.book{background:#000;text-align:center}
.book h2::after{margin-left:auto;margin-right:auto}
.book .lead{margin:20px auto 0}
.book .btns{justify-content:center}
.book .alt{margin:22px 0 0;color:var(--mute)}
.book .alt a{color:#fff}
footer{padding:36px 0;background:#000}
.foot{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;justify-content:space-between;color:var(--mute);font-size:.88rem}
.foot nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 20px}
.foot a{color:var(--mute);text-decoration:none;display:inline-block;min-height:24px}
.foot a:hover{color:#fff}
.foot .brand{color:#fff}
.nf{padding:120px 20px;text-align:center}
.nf img{margin:0 auto 24px}
.nf p{margin:18px auto 0}
.js .reveal{opacity:0;transform:translateY(10px);transition:opacity .4s ease,transform .4s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.js .reveal{opacity:1;transform:none;transition:none}}
@media (max-width:760px){
  body{font-size:17px}
  section{padding:56px 0}
  .hero{padding:64px 0}
  .nav__toggle{display:inline-block}
  .nav ul{display:none;position:absolute;left:0;right:0;top:64px;background:#000;border-bottom:1px solid var(--rule);flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 16px}
  .nav ul.open{display:flex}
  .nav li a{padding:12px 0;display:block}
  .nav li .btn{margin-top:8px}
  .steps{grid-template-columns:1fr}
  .steps li{border-right:0;border-bottom:1px solid var(--rule)}
  .steps li:last-child{border-bottom:0}
  .btn{flex:1 1 100%}
}