/* AINP homepage — modern, framework-first */
/* No build tools needed. Deploy as static files. */

:root{
  --bg: #0b0f14;
  --panel: rgba(255,255,255,0.06);
  --panel2: rgba(255,255,255,0.08);
  --muted: rgba(255,255,255,0.72);
  --muted2: rgba(255,255,255,0.58);
  --text: rgba(255,255,255,0.92);
  --line: rgba(255,255,255,0.12);
  --accent: #7dd3fc;     /* sky */
  --accent2: #a78bfa;    /* violet */
  --good: #34d399;       /* green */
  --warn: #fbbf24;       /* amber */
  --shadow: 0 18px 60px rgba(0,0,0,0.55);
  --radius: 18px;
  --radius2: 24px;
  --max: 1120px;
}

*{ box-sizing: border-box; }
html, body { height: 100%; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 30% -10%, rgba(167,139,250,0.18), transparent 55%),
              radial-gradient(900px 500px at 85% 10%, rgba(125,211,252,0.16), transparent 55%),
              radial-gradient(900px 600px at 50% 110%, rgba(52,211,153,0.10), transparent 50%),
              var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a{ color: inherit; text-decoration: none; }
a.link{ color: var(--accent); text-decoration: none; }
a.link:hover{ text-decoration: underline; }

.container{
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.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;
}
.skip-link{
  position:absolute; left:-999px; top:12px; z-index:9999;
  padding:10px 12px; border-radius: 10px; background: #111827;
  border: 1px solid var(--line);
}
.skip-link:focus{ left: 12px; }

/* Header */
.header{
  position: sticky; top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(11,15,20,0.65);
  border-bottom: 1px solid var(--line);
}
.header__inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 12px 0;
}
.brand{ display:flex; gap: 12px; align-items:center; }
.brand__mark{
  display:inline-flex; align-items:center; justify-content:center;
  width: 54px; height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(125,211,252,0.22), rgba(167,139,250,0.20));
  border: 1px solid rgba(255,255,255,0.18);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  font-weight: 800;
  letter-spacing: 0.06em;
}
.brand__text{ display:flex; flex-direction:column; line-height:1.1; }
.brand__title{ font-weight: 750; font-size: 0.95rem; }
.brand__tag{ font-size: 0.78rem; color: var(--muted2); margin-top: 2px; }

.nav{ display:flex; align-items:center; gap: 12px; }
.nav__menu{ display:flex; align-items:center; gap: 14px; }
.nav__link{
  padding: 8px 10px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 550;
  font-size: 0.92rem;
}
.nav__link:hover{ background: rgba(255,255,255,0.06); color: var(--text); }
.nav__cta{
  border: 1px solid rgba(125,211,252,0.35);
  background: rgba(125,211,252,0.10);
  color: var(--text);
}
.nav__toggle{
  display:none;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
  padding: 8px 10px;
  border-radius: 12px;
  color: var(--text);
}
.nav__toggleIcon{
  display:block; width: 18px; height: 12px;
  background:
    linear-gradient(var(--text), var(--text)) 0 0/100% 2px,
    linear-gradient(var(--text), var(--text)) 0 50%/100% 2px,
    linear-gradient(var(--text), var(--text)) 0 100%/100% 2px;
  background-repeat:no-repeat;
  opacity: 0.9;
}

/* Hero */
.hero{
  padding: 62px 0 44px;
}
.hero__grid{
  display:grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: start;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.78);
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
}
.hero h1{
  font-size: clamp(2rem, 2.4vw + 1.2rem, 3.1rem);
  line-height: 1.12;
  margin: 14px 0 12px;
  letter-spacing: -0.02em;
}
.emph{
  background: linear-gradient(90deg, rgba(125,211,252,0.95), rgba(167,139,250,0.95));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede{
  font-size: 1.06rem;
  color: var(--muted);
  max-width: 58ch;
}
.hero__actions{
  display:flex; flex-wrap:wrap;
  gap: 10px;
  margin: 18px 0 18px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-weight: 650;
  font-size: 0.95rem;
  box-shadow: 0 12px 30px rgba(0,0,0,0.28);
}
.btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,0.08); }
.btn:active{ transform: translateY(0px); }
.btn--primary{
  background: linear-gradient(135deg, rgba(125,211,252,0.22), rgba(167,139,250,0.20));
  border-color: rgba(255,255,255,0.16);
}
.btn--ghost{
  background: rgba(255,255,255,0.02);
}
.btn--soft{
  background: rgba(125,211,252,0.10);
  border-color: rgba(125,211,252,0.25);
}

.hero__meta{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 18px;
}
.metaCard{
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius);
  padding: 12px 12px;
}
.metaCard__kicker{
  color: var(--muted2);
  font-size: 0.82rem;
  margin-bottom: 6px;
}
.metaCard__value{
  font-weight: 700;
  font-size: 0.98rem;
}

/* Diagram */
.hero__visual{ position: relative; }
.diagram{
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius2);
  padding: 18px;
  box-shadow: var(--shadow);
  overflow:hidden;
}
.diagram:before{
  content:"";
  position:absolute;
  inset:-120px -120px auto auto;
  width: 340px; height: 340px;
  background: radial-gradient(circle at 30% 30%, rgba(125,211,252,0.22), transparent 60%);
  filter: blur(0px);
  opacity: 0.9;
  pointer-events:none;
}
.diagram__top{ display:flex; align-items:center; gap: 10px; flex-wrap:wrap; }
.pill{
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  min-width: 230px;
}
.pill--strong{
  background: linear-gradient(135deg, rgba(125,211,252,0.16), rgba(167,139,250,0.14));
  border-color: rgba(255,255,255,0.14);
}
.pill__title{ font-weight: 850; letter-spacing: 0.06em; }
.pill__subtitle{ display:block; color: var(--muted2); font-size: 0.86rem; margin-top: 2px; }

.arrow{
  width: 44px; height: 10px;
  background: linear-gradient(90deg, rgba(255,255,255,0.0), rgba(255,255,255,0.6), rgba(255,255,255,0.0));
  border-radius: 999px;
  opacity: 0.75;
}

.diagram__stack{
  margin-top: 14px;
  display:flex;
  flex-direction:column;
  gap: 10px;
}
.stackCard{
  display:flex;
  gap: 12px;
  padding: 12px 12px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.045);
}
.stackCard__label{
  width: 34px; height: 34px;
  border-radius: 12px;
  display:flex; align-items:center; justify-content:center;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.05);
  font-weight: 800;
}
.stackCard__title{ font-weight: 780; }
.stackCard__desc{ color: var(--muted2); font-size: 0.92rem; margin-top: 2px; }

.diagram__foot{ margin-top: 12px; }
.badgeRow{ display:flex; gap: 8px; flex-wrap:wrap; }
.badge{
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-weight: 650;
  font-size: 0.86rem;
}
.diagram__note{ margin: 10px 0 0; color: var(--muted2); font-size: 0.92rem; }

/* Sections */
.section{
  padding: 56px 0;
}
.section--muted{
  background: rgba(255,255,255,0.02);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.section__head{
  margin-bottom: 18px;
}
.section__head h2{
  font-size: clamp(1.5rem, 1.2vw + 1.1rem, 2.1rem);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.section__sub{
  margin: 0;
  color: var(--muted);
  max-width: 80ch;
}

.grid{
  display:grid;
  gap: 12px;
}
.grid--2{ grid-template-columns: repeat(2, 1fr); }
.grid--3{ grid-template-columns: repeat(3, 1fr); }
.grid--4{ grid-template-columns: repeat(4, 1fr); }

.card{
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius);
  padding: 16px 16px;
  box-shadow: 0 14px 36px rgba(0,0,0,0.22);
}
.card h3{ margin: 0 0 8px; font-size: 1.05rem; letter-spacing: -0.01em; }
.card p{ margin: 0; color: var(--muted); }
.card--feature{ position: relative; padding-left: 54px; }
.card__icon{
  position:absolute; left: 16px; top: 16px;
  width: 28px; height: 28px;
  border-radius: 10px;
  background: rgba(125,211,252,0.12);
  border: 1px solid rgba(125,211,252,0.20);
  display:flex; align-items:center; justify-content:center;
  font-weight: 800;
  color: rgba(255,255,255,0.9);
}

.callout{
  margin-top: 14px;
  border-radius: var(--radius2);
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
  padding: 16px 16px;
}
.callout__title{
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.callout__list{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.callout__list li{ margin: 8px 0; }
.callout--accent{
  background: linear-gradient(135deg, rgba(125,211,252,0.10), rgba(167,139,250,0.10));
  border-color: rgba(255,255,255,0.12);
}
.callout__text{ margin: 0; color: var(--muted); }

.miniStack{
  margin-top: 12px;
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 16px;
  overflow: hidden;
}
.miniStack__row{
  display:flex; justify-content:space-between; gap: 10px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.035);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.miniStack__row:first-child{ border-top: 0; }
.miniStack__tag{
  display:inline-flex; align-items:center; justify-content:center;
  width: 34px; height: 24px;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  font-weight: 800;
  color: rgba(255,255,255,0.88);
}

.bullets{
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}
.bullets li{ margin: 8px 0; }

.step{ position: relative; padding-top: 20px; }
.step__num{
  width: 34px; height: 34px;
  border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  font-weight: 900;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  margin-bottom: 10px;
}

.ctaBand{
  margin-top: 14px;
  padding: 16px;
  border-radius: var(--radius2);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}
.ctaBand h3{ margin: 0 0 4px; }
.ctaBand p{ margin: 0; color: var(--muted); }

.linkCard .link{ display:inline-flex; margin-top: 10px; font-weight: 700; }

/* Form */
.form{ display:flex; flex-direction:column; gap: 8px; }
.form__label{ font-weight: 650; color: rgba(255,255,255,0.85); font-size: 0.92rem; }
.form__input, .form__textarea{
  width: 100%;
  padding: 10px 11px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.22);
  color: var(--text);
  outline: none;
}
.form__input:focus, .form__textarea:focus{
  border-color: rgba(125,211,252,0.45);
  box-shadow: 0 0 0 3px rgba(125,211,252,0.12);
}
.form__note{ margin: 6px 0 0; font-size: 0.90rem; }

/* Footer */
.footer{
  padding: 28px 0 42px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer__inner{
  display:flex; align-items:flex-start; justify-content:space-between; gap: 18px;
}
.footer__brand{ font-weight: 900; letter-spacing: 0.08em; }
.footer__tag{ color: var(--muted2); max-width: 70ch; }

.muted{ color: var(--muted2); }

/* Responsive */
@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
  .hero__visual{ order: -1; }
  .grid--3{ grid-template-columns: 1fr; }
  .grid--4{ grid-template-columns: repeat(2, 1fr); }
  .hero__meta{ grid-template-columns: 1fr; }
  .ctaBand{ flex-direction: column; align-items:flex-start; }
}
@media (max-width: 740px){
  .grid--2{ grid-template-columns: 1fr; }
  .grid--4{ grid-template-columns: 1fr; }
  .nav__toggle{ display:inline-flex; align-items:center; gap: 8px; }
  .nav__menu{
    position: absolute;
    right: 20px;
    top: 62px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 10px;
    min-width: 220px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(11,15,20,0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    display: none;
  }
  .nav__menu.is-open{ display:flex; }
  .nav__link{ width: 100%; }
}