:root{
  --paper:#FFFDFA;
  --sand:#FAF4EB;
  --ink:#221E1B;
  --muted:#6E6660;
  --line:#EBE2D6;
  --amber:#F7A800;
  --tangerine:#EF7614;
  --crimson:#D6222A;
  --radius-petal:200px;
  --maxw:1140px;
  --font-display:'Alexandria',sans-serif;
  --font-body:'IBM Plex Sans Arabic',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{font-family:var(--font-display);line-height:1.35}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- petal shapes (from the NSS logo letterforms) ---------- */
.petal{border-radius:var(--radius-petal)}
.p-tl{border-radius:var(--radius-petal) var(--radius-petal) var(--radius-petal) 0}
.p-tr{border-radius:var(--radius-petal) var(--radius-petal) 0 var(--radius-petal)}
.p-bl{border-radius:var(--radius-petal) 0 var(--radius-petal) var(--radius-petal)}
.p-br{border-radius:0 var(--radius-petal) var(--radius-petal) var(--radius-petal)}

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,253,250,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;gap:16px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:34px;width:auto}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:.95rem;letter-spacing:.02em}
.nav-links{display:flex;gap:28px;font-size:.95rem;font-weight:500}
.nav-links a{color:var(--muted);transition:color .2s}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--crimson)}
.nav-cta{display:flex;align-items:center;gap:12px}
.lang-btn{
  font-family:var(--font-display);font-weight:600;font-size:.85rem;
  border:1.5px solid var(--ink);background:none;color:var(--ink);
  padding:7px 16px;border-radius:999px;cursor:pointer;transition:all .2s;
}
.lang-btn:hover{background:var(--ink);color:#fff}
.btn{
  display:inline-block;font-family:var(--font-display);font-weight:600;
  padding:13px 28px;border-radius:999px;font-size:.95rem;
  transition:transform .15s, box-shadow .15s;border:none;cursor:pointer;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--crimson);color:#fff;box-shadow:0 6px 18px rgba(214,34,42,.28)}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.nav .btn{padding:10px 22px;font-size:.88rem}

/* ---------- hero ---------- */
.hero{padding:72px 0 88px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.82rem;font-weight:600;color:var(--tangerine);
  letter-spacing:.06em;margin-bottom:20px;
}
.eyebrow::before{content:"";width:26px;height:13px;background:var(--tangerine);border-radius:999px 999px 999px 0}
.hero h1{font-size:clamp(1.9rem,4vw,3.1rem);font-weight:800;margin-bottom:22px}
.hero h1 .mark{color:var(--crimson)}
.hero p.lead{font-size:1.08rem;color:var(--muted);max-width:34em;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:42px}
.pay-strip{border-top:1px solid var(--line);padding-top:22px}
.pay-strip .label{font-size:.8rem;color:var(--muted);margin-bottom:12px}
.pay-chips{display:flex;gap:10px;flex-wrap:wrap}
.pay-chip{
  font-size:.83rem;font-weight:600;padding:7px 16px;
  background:var(--sand);border:1px solid var(--line);border-radius:999px;
}
/* logo-derived composition */
.hero-art{position:relative;display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:74px;gap:10px;max-width:380px;margin-inline:auto}
.hero-art>div{opacity:0;transform:translateY(14px);animation:rise .6s forwards}
.hero-art>div:nth-child(1){animation-delay:.05s}
.hero-art>div:nth-child(2){animation-delay:.12s}
.hero-art>div:nth-child(3){animation-delay:.19s}
.hero-art>div:nth-child(4){animation-delay:.26s}
.hero-art>div:nth-child(5){animation-delay:.33s}
.hero-art>div:nth-child(6){animation-delay:.40s}
.hero-art>div:nth-child(7){animation-delay:.47s}
.hero-art>div:nth-child(8){animation-delay:.54s}
.hero-art>div:nth-child(9){animation-delay:.61s}
@keyframes rise{to{opacity:1;transform:none}}
.c-amber{background:var(--amber)}
.c-tang{background:var(--tangerine)}
.c-crim{background:var(--crimson)}
.c-sand{background:var(--sand);border:1px solid var(--line)}
.tall{grid-row:span 2}

/* ---------- sections ---------- */
section{padding:84px 0}
.sec-head{max-width:620px;margin-bottom:48px}
.sec-head .eyebrow{margin-bottom:14px}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;margin-bottom:14px}
.sec-head p{color:var(--muted)}

/* systems grid */
#systems{background:var(--sand)}
.sys-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.sys-card{
  background:var(--paper);border:1px solid var(--line);
  padding:28px 26px 24px;position:relative;
  border-radius:22px;
  transition:transform .2s, box-shadow .2s;
  display:flex;flex-direction:column;gap:10px;
}
.sys-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(34,30,27,.09)}
.sys-card .dot{width:34px;height:17px;margin-bottom:6px}
.sys-card h3{font-size:1.05rem;font-weight:700}
.sys-card p{font-size:.88rem;color:var(--muted);flex:1}
.price{font-family:var(--font-display);display:flex;align-items:baseline;gap:7px;margin-top:6px}
.price .from{font-size:.75rem;color:var(--muted)}
.price .val{font-size:1.45rem;font-weight:800}
.price .cur{font-size:.8rem;font-weight:600;color:var(--muted)}
.sys-card.custom{background:var(--ink);color:#fff;border-color:var(--ink)}
.sys-card.custom p{color:#CFC8C2}
.sys-card.custom .price .val{font-size:1.05rem;font-weight:700;color:var(--amber)}

/* addons */
.addon-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.addon{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border:1px solid var(--line);border-radius:16px;padding:18px 20px;background:var(--paper);
}
.addon .name{font-weight:600;font-size:.92rem}
.addon .a-price{font-family:var(--font-display);font-weight:700;color:var(--crimson);font-size:.95rem;white-space:nowrap}

/* payment */
#payment{background:var(--sand)}
.pay-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:28px}
.pay-card{background:var(--paper);border:1px solid var(--line);padding:30px 26px;display:flex;flex-direction:column;gap:8px}
.pay-card .dot{width:34px;height:17px;margin-bottom:8px}
.pay-card h3{font-size:1rem;font-weight:700}
.pay-card p{font-size:.85rem;color:var(--muted)}
.pay-note{font-size:.88rem;color:var(--muted);border-inline-start:3px solid var(--amber);padding-inline-start:16px}

/* partners band */
#partners .band{
  background:var(--ink);color:#fff;border-radius:34px;
  padding:56px 52px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
#partners .band::after{
  content:"";position:absolute;inset-inline-end:-70px;bottom:-90px;
  width:280px;height:280px;background:var(--crimson);opacity:.9;
  border-radius:var(--radius-petal) var(--radius-petal) var(--radius-petal) 0;
}
#partners .band::before{
  content:"";position:absolute;inset-inline-end:150px;bottom:-130px;
  width:220px;height:220px;background:var(--amber);opacity:.85;
  border-radius:var(--radius-petal) var(--radius-petal) 0 var(--radius-petal);
}
#partners h2{font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:700;margin-bottom:14px}
#partners p{color:#CFC8C2;margin-bottom:26px;max-width:32em}
#partners .band-cta{position:relative;z-index:1;justify-self:start}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.contact-card{border:1px solid var(--line);border-radius:22px;padding:28px 26px;background:var(--paper)}
.contact-card .dot{width:34px;height:17px;margin-bottom:14px}
.contact-card h3{font-size:.92rem;font-weight:700;color:var(--muted);margin-bottom:6px}
.contact-card a,.contact-card .val{font-family:var(--font-display);font-weight:600;font-size:1rem;display:inline-block}
.contact-card a[href^="tel"],.contact-card a[href^="mailto"],.contact-card a[href^="https"]{direction:ltr}
.contact-card a:hover{color:var(--crimson)}

/* footer */
footer{border-top:1px solid var(--line);padding:34px 0;background:var(--sand)}
.foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot img{height:26px}
.foot p{font-size:.85rem;color:var(--muted)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .nav-links{display:none}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-art{max-width:300px;grid-auto-rows:60px}
  #partners .band{grid-template-columns:1fr;padding:44px 32px 120px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero-art>div{animation:none;opacity:1;transform:none}
  .btn:hover,.sys-card:hover{transform:none}
}
:focus-visible{outline:2.5px solid var(--tangerine);outline-offset:3px}

/* ---------- inner pages ---------- */
.page-hero{padding:64px 0 40px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(1.7rem,3.4vw,2.5rem);font-weight:800;margin-bottom:14px}
.page-hero p{color:var(--muted);max-width:38em}
.crumb{font-size:.82rem;color:var(--muted);margin-bottom:18px;display:inline-block}
.crumb a:hover{color:var(--crimson)}

/* system detail blocks */
.sysd{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start;padding:56px 0;border-bottom:1px solid var(--line)}
.sysd:last-of-type{border-bottom:none}
.sysd .dot{width:44px;height:22px;margin-bottom:16px}
.sysd h2{font-size:1.4rem;font-weight:700;margin-bottom:12px}
.sysd .sum{color:var(--muted);margin-bottom:22px}
.sysd .price{margin-bottom:22px}
.sysd .actions{display:flex;gap:12px;flex-wrap:wrap}
.feat{list-style:none;display:grid;gap:12px}
.feat li{display:flex;gap:12px;align-items:flex-start;background:var(--sand);border:1px solid var(--line);border-radius:14px;padding:14px 18px;font-size:.93rem}
.feat li::before{content:"";flex:0 0 20px;height:10px;margin-top:9px;border-radius:999px 999px 999px 0;background:var(--tangerine)}
.sysd:nth-of-type(3n+1) .feat li::before{background:var(--amber)}
.sysd:nth-of-type(3n) .feat li::before{background:var(--crimson)}
.review-note{font-size:.85rem;color:var(--muted);border-inline-start:3px solid var(--line);padding-inline-start:14px;margin-top:8px}

/* contact form */
.form-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;font-family:var(--font-body);font-size:.95rem;color:var(--ink);
  background:var(--paper);border:1.5px solid var(--line);border-radius:14px;
  padding:13px 16px;transition:border-color .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--tangerine)}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:.83rem;color:var(--muted);margin-top:14px}
@media (max-width:900px){
  .sysd{grid-template-columns:1fr;gap:26px;padding:44px 0}
  .form-grid{grid-template-columns:1fr}
}

/* ---------- buy / rent dual pricing ---------- */
.price-duo{display:grid;gap:6px;margin-top:8px}
.price-duo .price{margin-top:0}
.ptag{
  font-family:var(--font-body);font-size:.72rem;font-weight:600;color:var(--muted);
  background:var(--sand);border:1px solid var(--line);border-radius:999px 999px 999px 0;
  padding:2px 12px;min-width:52px;text-align:center;
}
.price.rent .ptag{background:#FDEBEC;border-color:#F3C2C4;color:var(--crimson)}
.price-duo .price .val{font-size:1.3rem}
.price.rent .val{color:var(--crimson)}
.sys-card.custom .ptag{display:none}

/* ---------- footer payment strip ---------- */
.foot-pay{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.foot-pay .fp-label{font-size:.82rem;color:var(--muted);font-weight:500}
.foot-pay .pay-chip{background:var(--paper)}

/* ---------- auth pages ---------- */
.auth-main{min-height:calc(100vh - 300px);display:flex;align-items:center;padding:64px 0}
.auth-card{
  width:100%;max-width:440px;margin:0 auto;background:var(--paper);
  border:1px solid var(--line);border-radius:28px;padding:40px 36px;
  box-shadow:0 18px 50px rgba(34,30,27,.07);
}
.auth-card .dot{width:40px;height:20px;margin-bottom:18px}
.auth-card h1{font-size:1.45rem;font-weight:800;margin-bottom:8px}
.auth-card .sub{font-size:.9rem;color:var(--muted);margin-bottom:26px}
.auth-card .btn{width:100%;text-align:center}
.divider{display:flex;align-items:center;gap:14px;margin:24px 0;color:var(--muted);font-size:.8rem}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}
.social-btns{display:grid;gap:10px}
.social-btn{
  display:flex;align-items:center;justify-content:center;gap:12px;
  font-family:var(--font-body);font-weight:600;font-size:.92rem;color:var(--ink);
  background:var(--paper);border:1.5px solid var(--line);border-radius:999px;
  padding:12px 20px;cursor:pointer;transition:border-color .2s, background .2s;width:100%;
}
.social-btn:hover{border-color:var(--ink);background:var(--sand)}
.social-btn svg{width:19px;height:19px;flex:0 0 auto}
.auth-switch{text-align:center;font-size:.88rem;color:var(--muted);margin-top:22px}
.auth-switch a{color:var(--crimson);font-weight:600}
.soon-msg{display:none;background:#FFF7E6;border:1px solid #F3DDB0;color:#8A6100;border-radius:12px;padding:12px 16px;font-size:.85rem;margin-top:16px}
.soon-msg.show{display:block}
.hint{font-size:.78rem;color:var(--muted);margin-top:6px}

/* installment hint under buy price */
.inst{font-size:.74rem;color:var(--muted);margin-top:2px}

/* footer terms link */
.foot-link{font-size:.85rem;font-weight:600;color:var(--muted)}
.foot-link:hover{color:var(--crimson)}