/* NuraNet marketing site — self-contained, RTL, no external dependencies. */
:root{
  --brand:#0E9F6E; --brand-2:#0ea5e9; --sun:#f59e0b;
  --ink:#0f172a; --muted:#5b6b7f; --line:#e6ebf1;
  --bg:#ffffff; --bg-alt:#f5f8fb;
  --navy:#0b1220; --navy-2:#111a2e;
  --ok:#22c55e; --off:#f59e0b; --fault:#ef4444; --ai:#3b82f6;
  --radius:18px; --shadow:0 18px 50px -22px rgba(15,23,42,.35);
  --maxw:1160px;
  --font: "Vazirmatn","Segoe UI",Tahoma,"Iranian Sans",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.85;font-size:16px}
img{max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .5em}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin-inline:auto;padding-inline:22px}
.container--narrow{max-width:820px}
.grad{background:linear-gradient(90deg,var(--sun),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:#fff;
  padding:12px 22px;border-radius:12px;font-weight:700;border:1px solid transparent;transition:.2s;cursor:pointer;white-space:nowrap}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px -12px rgba(14,159,110,.7)}
.btn--lg{padding:15px 30px;font-size:1.05rem}
.btn--sm{padding:9px 16px;font-size:.92rem}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.08);box-shadow:none}
.section .btn--ghost,.app__grid .btn--ghost{border-color:var(--brand);color:var(--brand)}

/* Nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav__row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.brand{display:flex;align-items:center;gap:10px}
.brand__mark{display:grid;place-items:center}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__text b{font-size:1.15rem}
.brand__text small{color:var(--muted);font-size:.72rem}
.nav__links{display:flex;align-items:center;gap:22px}
.nav__links a{font-weight:600;color:#33435a;font-size:.98rem}
.nav__links a:hover{color:var(--brand)}
.nav__toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--ink)}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--navy),var(--navy-2) 60%,#0c2233);color:#eaf1fb;padding:72px 0 88px}
.hero__glow{position:absolute;inset:auto -10% 30% auto;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(245,158,11,.35),transparent 60%);filter:blur(20px);pointer-events:none}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;position:relative}
.pill{display:inline-block;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:#dbe7f7;
  padding:6px 14px;border-radius:999px;font-size:.85rem;margin-bottom:16px}
.hero h1{font-size:clamp(1.9rem,4.4vw,3.1rem);letter-spacing:-.5px}
.lead{font-size:1.12rem;color:#c6d4e6;max-width:60ch}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin:22px 0 18px}
.hero__badges{display:flex;gap:18px;flex-wrap:wrap;color:#a9bcd4;font-size:.9rem}

/* Dashboard mock */
.mock{background:linear-gradient(180deg,#0f1b30,#0c1526);border:1px solid rgba(255,255,255,.1);border-radius:16px;
  box-shadow:0 40px 80px -30px rgba(0,0,0,.7);overflow:hidden}
.mock__bar{display:flex;align-items:center;gap:6px;padding:12px 14px;background:rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.08)}
.mock__bar i{width:10px;height:10px;border-radius:50%;background:#3a4761}
.mock__bar span{margin-inline-start:auto;font-size:.8rem;color:#93a6c2}
.mock__body{padding:16px}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
.kpi{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.07);border-radius:12px;padding:10px}
.kpi small{color:#8ea3c0;font-size:.72rem;display:block}
.kpi b{font-size:1.05rem;color:#eef4ff}
.kpi u{font-size:.7rem;color:#8ea3c0;text-decoration:none}
.chart{background:rgba(255,255,255,.04);border-radius:12px;padding:8px;height:96px}
.chart svg{width:100%;height:100%}
.dots{display:grid;grid-template-columns:repeat(12,1fr);gap:6px;margin:14px 0 10px}
.d{width:100%;aspect-ratio:1;border-radius:5px;display:inline-block}
.d--ok{background:var(--ok)} .d--off{background:var(--off)} .d--fault{background:var(--fault)} .d--ai{background:var(--ai)}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:.78rem;color:#9fb2cd}
.legend i{width:11px;height:11px;border-radius:3px;display:inline-block;margin-inline-end:5px;vertical-align:middle}

/* Stats */
.stats{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.stats__row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding-block:34px;text-align:center}
.stat b{display:block;font-size:2rem;color:var(--brand);font-weight:800}
.stat small{color:var(--muted)}

/* Sections */
.section{padding:74px 0}
.section--alt{background:var(--bg-alt)}
.section__head{text-align:center;max-width:720px;margin:0 auto 42px}
.eyebrow{display:inline-block;color:var(--brand);font-weight:800;font-size:.85rem;letter-spacing:.4px;margin-bottom:8px}
.eyebrow--light{color:var(--sun)}
.section__head h2{font-size:clamp(1.5rem,3vw,2.1rem)}
.section__head p{color:var(--muted)}

/* Cards grid */
.grid{display:grid;gap:18px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.25s;box-shadow:0 1px 0 rgba(15,23,42,.02)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.card h3{font-size:1.15rem}
.card p{color:var(--muted);margin:0}
.ic{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:1.5rem;margin-bottom:14px}
.ic--green{background:rgba(14,159,110,.12)} .ic--blue{background:rgba(14,165,233,.12)} .ic--amber{background:rgba(245,158,11,.14)}

/* AI band */
.band{background:linear-gradient(160deg,var(--navy),#0c2233);color:#eaf1fb;padding:74px 0}
.band__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.h2--light{color:#fff;font-size:clamp(1.5rem,3vw,2.1rem)}
.muted--light{color:#bcccE2}
.ticks{list-style:none;padding:0;margin:0}
.ticks li{position:relative;padding-inline-start:28px;margin-bottom:10px}
.ticks li::before{content:"✔";position:absolute;inset-inline-start:0;color:var(--brand);font-weight:800}
.ai-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:14px}
.ai-row{display:flex;gap:12px;align-items:center;padding:14px;border-radius:12px;background:rgba(255,255,255,.03);margin-bottom:10px}
.ai-row .d{width:14px;height:14px;border-radius:5px;flex:none}
.ai-row b{display:block;color:#fff;font-size:.98rem}
.ai-row small{color:#9fb2cd}

/* Chips */
.chips{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.chip{background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:10px 18px;font-weight:600;color:#33435a;transition:.2s}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}

/* Flow */
.flow{display:flex;align-items:stretch;justify-content:center;gap:14px;flex-wrap:wrap}
.flow__step{flex:1;min-width:220px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center}
.flow__ic{font-size:2.2rem;margin-bottom:10px}
.flow__step p{color:var(--muted);margin:0}
.flow__arrow{align-self:center;font-size:1.8rem;color:var(--brand);font-weight:800}

/* App */
.app__grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.phone{display:flex;justify-content:center}
.phone__frame{width:290px;background:linear-gradient(180deg,#0f1b30,#0c1526);border:1px solid rgba(255,255,255,.12);
  border-radius:34px;padding:16px 14px 22px;box-shadow:var(--shadow)}
.phone__top{width:120px;height:22px;background:#0a1120;border-radius:0 0 16px 16px;margin:0 auto 14px}
.phone__title{color:#eef4ff;font-weight:700;padding:0 6px 12px}
.p-card{background:rgba(255,255,255,.05);border-inline-start:5px solid #555;border-radius:12px;padding:12px 14px;margin-bottom:10px}
.p-card b{display:block;color:#fff} .p-card small{color:#9fb2cd}
.p-card--ok{border-color:var(--ok)} .p-card--off{border-color:var(--off)} .p-card--fault{border-color:var(--fault)} .p-card--ai{border-color:var(--ai)}

/* Mini */
.mini{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.mini b{color:var(--ink);font-size:1.05rem;display:block;margin-bottom:6px}
.mini p{color:var(--muted);margin:0}

/* FAQ */
.faq{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:6px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";color:var(--brand);font-weight:800;margin-inline-end:10px}
.faq[open] summary::before{content:"–"}
.faq p{color:var(--muted);padding-bottom:14px;margin:0}

/* CTA */
.cta{padding:70px 0;background:var(--bg-alt)}
.cta__box{background:linear-gradient(140deg,var(--brand),#0b8f63 60%,var(--brand-2));color:#fff;border-radius:26px;
  padding:52px 30px;text-align:center;box-shadow:var(--shadow)}
.cta__box h2{color:#fff;font-size:clamp(1.4rem,3vw,2rem)}
.cta__box p{color:#eafff6}
.cta__actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:20px 0 10px}
.cta__box .btn{background:#fff;color:var(--brand)}
.cta__box .btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.cta__note{font-size:.9rem;opacity:.92}

/* Footer */
.footer{background:var(--navy);color:#c6d4e6;padding:52px 0 24px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:30px}
.footer h4{color:#fff;margin-bottom:12px}
.footer a{display:block;color:#a9bcd4;padding:4px 0}
.footer a:hover{color:#fff}
.brand--footer .brand__text b{color:#fff} .brand--footer small{color:#8ea3c0}
.footer__about{color:#93a6c2;margin-top:12px;max-width:40ch}
.footer__tags{color:#7f92ad;font-size:.86rem;line-height:2}
.footer__bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.08);
  margin-top:26px;padding-top:18px;color:#7f92ad;font-size:.85rem}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* Brand logo image */
.brand__mark img{width:40px;height:40px;object-fit:contain;display:block}
.brand--footer .brand__mark img{width:34px;height:34px}
.footer__contact{color:#a9bcd4;margin-top:12px;font-size:.9rem;line-height:2}
.footer__contact a{display:inline;color:#cfe0f4}
.footer__contact a:hover{color:#fff}

/* Screenshots gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.shot{position:relative;margin:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:linear-gradient(135deg,#eaf1fb,#dbe7f6);aspect-ratio:16/10;transition:.25s}
.shot::after{content:"NuraNet";position:absolute;inset:0;display:grid;place-items:center;
  color:#9db4d2;font-weight:800;font-size:1.2rem;letter-spacing:1px;opacity:.55}
.shot img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;object-position:top center;background:#fff}
.shot figcaption{position:absolute;z-index:2;inset-inline:0;bottom:0;
  background:linear-gradient(0deg,rgba(11,18,32,.9),rgba(11,18,32,.35) 70%,transparent);
  color:#fff;padding:20px 14px 12px;font-size:.92rem;font-weight:700}
.shot:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.shot:hover img{transform:scale(1.02)}
.gallery__note{text-align:center;color:var(--muted);margin-top:18px;font-size:.9rem}

/* Responsive */
@media(max-width:900px){
  .gallery{grid-template-columns:1fr 1fr}
  .hero__grid,.band__grid,.app__grid{grid-template-columns:1fr}
  .grid--3{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
  .flow__arrow{transform:rotate(-90deg)}
  .nav__links{position:fixed;inset:64px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:10px 22px 20px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
  .nav__links.open{display:flex}
  .nav__links a{padding:12px 0;border-bottom:1px solid var(--line);width:100%}
  .nav__links .btn{margin-top:10px}
  .nav__toggle{display:block}
}
@media(max-width:560px){
  .stats__row{grid-template-columns:1fr 1fr}
  .grid--3{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  .kpis{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.btn:hover{transform:none}}