/* ===========================================================
   Rapid Loop AI — marketing site
   =========================================================== */
:root{
  --bg:#070b1a;
  --bg-2:#0b1124;
  --panel:#0f1730;
  --panel-2:#121b38;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.14);
  --ink:#eef2ff;
  --muted:#9aa6c9;
  --muted-2:#6f7ba3;
  --cyan:#3de0ff;
  --blue:#5ea0ff;
  --violet:#9a6bff;
  --grad:linear-gradient(135deg,#3de0ff 0%,#5ea0ff 45%,#9a6bff 100%);
  --grad-soft:linear-gradient(135deg,rgba(61,224,255,.16),rgba(154,107,255,.16));
  --shadow:0 24px 60px -24px rgba(4,10,30,.85);
  --radius:18px;
  --maxw:1160px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  --display:'Space Grotesk','Inter',system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.08;letter-spacing:-.02em;margin:0}
p{margin:0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

.eyebrow{
  display:inline-block;font-family:var(--display);font-weight:600;font-size:.78rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);margin-bottom:18px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.85rem 1.5rem;border-radius:999px;font-weight:600;font-size:.98rem;
  cursor:pointer;border:1px solid transparent;transition:transform .18s ease,box-shadow .25s ease,background .25s ease;
  font-family:var(--display);
}
.btn--primary{background:var(--grad);color:#05122a;box-shadow:0 12px 30px -10px rgba(94,160,255,.6)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -10px rgba(94,160,255,.75)}
.btn--ghost{background:rgba(255,255,255,.04);color:var(--ink);border-color:var(--line-2)}
.btn--ghost:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn--full{width:100%}

/* ---------- Nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(7,11,26,.78);backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:.6rem}
.brand__mark{display:grid;place-items:center;filter:drop-shadow(0 4px 12px rgba(61,224,255,.4))}
.brand__name{font-family:var(--display);font-weight:700;font-size:1.18rem;letter-spacing:-.01em}
.brand__name span{color:var(--cyan)}
.brand__name b{color:var(--violet);font-weight:700;margin-left:.12em}
.nav__links{display:flex;align-items:center;gap:2rem}
.nav__links a{font-size:.95rem;color:var(--muted);font-weight:500;transition:color .2s}
.nav__links a:hover{color:var(--ink)}
.nav__cta{
  padding:.55rem 1.15rem;border-radius:999px;background:var(--grad-soft);
  border:1px solid var(--line-2);color:var(--ink)!important;
}
.nav__cta:hover{border-color:var(--cyan)}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav__toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}

/* ---------- Hero ---------- */
.hero{position:relative;padding:148px 0 90px;overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:0}
.orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.55}
.orb--1{width:520px;height:520px;background:radial-gradient(circle,#1b69ff,transparent 70%);top:-160px;right:-120px}
.orb--2{width:460px;height:460px;background:radial-gradient(circle,#7b3bff,transparent 70%);bottom:-180px;left:-120px;opacity:.42}
.grid-glow{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:54px 54px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 40%,transparent 80%);
          mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 40%,transparent 80%);
}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.5rem,5.6vw,4.3rem)}
.hero__sub{margin-top:22px;font-size:clamp(1.02rem,1.5vw,1.22rem);color:var(--muted);max-width:34rem}
.hero__sub strong{color:var(--ink);font-weight:600}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.pill-strip{
  list-style:none;display:flex;flex-wrap:wrap;gap:12px;margin:38px 0 0;padding:0;
}
.pill-strip li{
  display:flex;flex-direction:column;padding:12px 18px;border-radius:14px;
  background:rgba(255,255,255,.035);border:1px solid var(--line);min-width:150px;
}
.pill-strip b{font-family:var(--display);font-size:1.05rem}
.pill-strip span{font-size:.82rem;color:var(--muted-2)}

/* hero art */
.hero__art{position:relative;display:grid;place-items:center;min-height:360px}
.loop-svg{width:min(420px,92%);overflow:visible}
.ring{fill:none}
.ring--track,.ring--track2{stroke:rgba(255,255,255,.07);stroke-width:2}
.ring--live{stroke-width:3.4;stroke-linecap:round;stroke-dasharray:230 720;transform-origin:180px 180px;animation:spin 9s linear infinite}
.ring--live2{stroke-width:3.4;stroke-linecap:round;stroke-dasharray:150 540;transform-origin:180px 180px;animation:spin 7s linear infinite reverse}
.loop-node{transform-origin:180px 180px;animation:spin 9s linear infinite}
.loop-core .core{fill:rgba(61,224,255,.08);stroke:rgba(61,224,255,.5);stroke-width:1.5;animation:pulse 3.2s ease-in-out infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:.55}50%{opacity:1}}
.art-tag{
  position:absolute;font-family:var(--display);font-weight:600;font-size:.82rem;
  padding:.5rem .9rem;border-radius:999px;background:rgba(15,23,48,.9);
  border:1px solid var(--line-2);box-shadow:var(--shadow);white-space:nowrap;
  animation:float 6s ease-in-out infinite;
}
.art-tag--a{top:6%;left:-4%}
.art-tag--b{bottom:14%;right:-6%;animation-delay:-2s}
.art-tag--c{bottom:-2%;left:14%;animation-delay:-4s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ---------- Stats ---------- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2)}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:42px 24px}
.stat{text-align:center;padding:8px}
.stat__num{display:block;font-family:var(--display);font-weight:700;font-size:clamp(2rem,3.5vw,2.8rem);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat__label{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section--alt{background:var(--bg-2)}
.section__head{max-width:46rem;margin:0 auto 56px;text-align:center}
.section__head h2{font-size:clamp(1.9rem,3.6vw,2.8rem)}
.lead{color:var(--muted);font-size:1.08rem;margin-top:16px}

/* ---------- Cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:28px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:var(--shadow)}
.card__ico{
  width:50px;height:50px;border-radius:13px;display:grid;place-items:center;font-size:1.5rem;
  background:var(--grad-soft);border:1px solid var(--line-2);margin-bottom:18px;
}
.card h3{font-size:1.18rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.96rem}

/* ---------- Pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pillar{
  position:relative;padding:34px 28px;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);
}
.pillar::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad)}
.pillar__no{font-family:var(--display);font-weight:700;font-size:1rem;color:var(--cyan);letter-spacing:.1em}
.pillar h3{font-size:1.6rem;margin:10px 0 12px}
.pillar p{color:var(--muted);font-size:1rem}

/* ---------- Steps ---------- */
.steps{
  list-style:none;margin:0;padding:0;counter-reset:s;
  display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative;
}
.step{
  position:relative;padding:26px 20px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);
}
.step__n{
  display:grid;place-items:center;width:40px;height:40px;border-radius:50%;
  font-family:var(--display);font-weight:700;color:#05122a;background:var(--grad);margin-bottom:16px;
}
.step h3{font-size:1.12rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.9rem}

/* ---------- AI band ---------- */
.ai-band{padding:30px 0 96px}
.ai-band__inner{
  display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
  background:
    radial-gradient(120% 140% at 0% 0%,rgba(61,224,255,.14),transparent 55%),
    radial-gradient(120% 140% at 100% 100%,rgba(154,107,255,.16),transparent 55%),
    var(--panel);
  border:1px solid var(--line-2);border-radius:26px;padding:46px;
}
.ai-band h2{font-size:clamp(1.7rem,3vw,2.4rem)}
.ai-band p{color:var(--muted);margin-top:16px;font-size:1.05rem}
.ai-band__badge{display:flex;flex-direction:column;gap:12px}
.chip{
  font-family:var(--display);font-weight:600;padding:.8rem 1.1rem;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-2);text-align:center;
}

/* ---------- Contact ---------- */
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact__copy h2{font-size:clamp(1.9rem,3.4vw,2.6rem);margin-bottom:6px}
.contact__list{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:12px}
.contact__list li{color:var(--muted);font-size:1rem}
.contact__list a{color:var(--cyan)}
.contact__form{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:30px;
}
.field{margin-bottom:16px}
.field label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:7px;font-weight:500}
.field input,.field textarea{
  width:100%;padding:.8rem 1rem;border-radius:12px;background:rgba(255,255,255,.04);
  border:1px solid var(--line-2);color:var(--ink);font:inherit;font-size:.95rem;transition:border-color .2s,background .2s;
}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-2)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan);background:rgba(255,255,255,.06)}
.field textarea{resize:vertical}
.form-note{margin-top:14px;font-size:.9rem;min-height:1.2em;color:var(--cyan)}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);background:var(--bg-2);padding-top:56px}
.footer__inner{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;padding-bottom:40px}
.footer__brand p{color:var(--muted-2);font-size:.92rem;margin-top:12px}
.footer__nav{display:flex;gap:24px;flex-wrap:wrap;align-items:center}
.footer__nav a{color:var(--muted);font-size:.95rem}
.footer__nav a:hover{color:var(--ink)}
.footer__bar{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 24px;color:var(--muted-2);font-size:.85rem;
}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .hero__inner{grid-template-columns:1fr;gap:30px}
  .hero__art{order:-1;min-height:280px}
  .loop-svg{width:min(320px,80%)}
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .pillars{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .ai-band__inner{grid-template-columns:1fr}
  .contact__grid{grid-template-columns:1fr;gap:32px}
}
@media(max-width:680px){
  .nav__links{
    position:fixed;top:72px;right:16px;left:16px;flex-direction:column;align-items:stretch;
    gap:6px;padding:16px;background:rgba(11,17,36,.97);backdrop-filter:blur(14px);
    border:1px solid var(--line);border-radius:16px;
    transform:translateY(-10px);opacity:0;pointer-events:none;transition:.25s;
  }
  .nav__links.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav__links a{padding:.7rem .6rem}
  .nav__cta{text-align:center}
  .nav__toggle{display:flex}
  .nav__toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav__toggle.is-open span:nth-child(2){opacity:0}
  .nav__toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hero{padding-top:118px}
  .cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .section{padding:72px 0}
  .ai-band__inner{padding:30px}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
}