:root{
  --ink:#0f1b2d;
  --ink-2:#44526a;
  --paper:#f6f8fb;
  --white:#fff;
  --red:#e4332f;
  --red-dark:#c32621;
  --live:#2fd08a;
  --line:#dde3ec;
  --radius:14px;
  --font-head:'Readex Pro','Tajawal',system-ui,sans-serif;
  --font-body:'IBM Plex Sans Arabic','Tajawal',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--ink);background:var(--white);line-height:1.8;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:min(1120px,92%);margin-inline:auto}
.wrap--narrow{width:min(760px,92%)}
h1,h2,h3{font-family:var(--font-head);line-height:1.35}
h1{font-size:clamp(2rem,5.2vw,3.4rem);font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,3.4vw,2.2rem);margin-bottom:1.6rem}
h3{font-size:1.1rem;margin-bottom:.4rem}
:focus-visible{outline:3px solid var(--red);outline-offset:3px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:var(--red);color:#fff;border:0;border-radius:999px;padding:.85rem 1.7rem;font:600 1rem var(--font-body);cursor:pointer;transition:background .2s,transform .15s}
.btn:hover{background:var(--red-dark)}
.btn:active{transform:scale(.97)}
.btn--sm{padding:.45rem 1.1rem;font-size:.95rem}
.btn--ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--dark{background:var(--ink)}
.btn--dark:hover{background:#1c2e4a}
.btn--block{width:100%;padding:1rem;font-size:1.1rem;border-radius:var(--radius)}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar__in{display:flex;align-items:center;justify-content:space-between;padding:.7rem 0}
.brand{font:700 1.5rem var(--font-head);color:var(--red);letter-spacing:.04em;direction:ltr}
.brand small{font:500 .7rem var(--font-body);color:var(--ink-2);margin-inline-start:.4rem;letter-spacing:0}

/* hero */
.hero{background:var(--paper);padding:3rem 0 4rem}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}
.pill{display:inline-block;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:.25rem 1rem;font-size:.9rem;color:var(--ink-2);margin-bottom:1.2rem}
.lead{margin:1.2rem 0 1.8rem;color:var(--ink-2);font-size:1.12rem;max-width:34em}
.lead strong{color:var(--ink)}
.hero__cta{display:flex;gap:.8rem;flex-wrap:wrap}
.note{margin-top:1rem;font-size:.85rem;color:var(--ink-2)}

/* live demo */
.demo{background:var(--white);border:1px solid var(--line);border-radius:22px;padding:1rem;box-shadow:0 18px 40px -22px rgba(15,27,45,.35)}
.demo__room{position:relative;height:300px;border-radius:14px;overflow:hidden;background:#fff4d6;transition:background .6s}
.demo__room.off{background:#0b1220}
.demo__lamp{position:absolute;top:0;inset-inline-start:50%;width:4px;height:50px;background:#9aa6b8;transform:translateX(50%)}
.demo__lamp::after{content:"";position:absolute;bottom:-26px;left:50%;transform:translateX(-50%);width:44px;height:28px;border-radius:44px 44px 6px 6px;background:#ffc93c;box-shadow:0 0 60px 22px rgba(255,201,60,.65);transition:all .5s}
.demo__room.off .demo__lamp::after{background:#2b3548;box-shadow:none}
.demo__devices{position:absolute;top:92px;inset-inline:0;display:flex;justify-content:center;gap:1rem}
.dev{display:flex;align-items:center;gap:.5rem;background:#101a2b;color:#cfd8e6;padding:.45rem .9rem;border-radius:10px;font-size:.9rem}
.led{width:11px;height:11px;border-radius:50%;background:var(--live);box-shadow:0 0 10px 2px var(--live);animation:blink 2.4s infinite}
.led.dead{background:#555;box-shadow:none;animation:none}
@keyframes blink{50%{opacity:.45}}
.demo__box{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);width:150px;height:150px;border-radius:14px;overflow:hidden;box-shadow:0 10px 28px rgba(0,0,0,.3)}
.demo__box img{width:100%;height:100%;object-fit:cover;object-position:center 62%}
.demo__bar{display:flex;justify-content:space-between;align-items:center;padding:.9rem .3rem .6rem}
.demo__state{font-weight:600}
.demo__timer{font:600 1.5rem var(--font-head);direction:ltr;font-variant-numeric:tabular-nums;color:var(--red)}
.demo__btn{width:100%;border-radius:12px}

/* facts */
.facts{background:var(--ink);color:#fff;padding:2rem 0}
.facts__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;text-align:center}
.facts b{display:block;font:700 1.6rem var(--font-head);direction:ltr}
.facts span{font-size:.9rem;color:#aebbd0}

/* sections */
.sec{padding:4.5rem 0}
.sec--tint{background:var(--paper)}
.feat{display:grid;grid-template-columns:repeat(2,1fr);gap:1.6rem 3rem}
.feat article{border-inline-start:4px solid var(--red);padding-inline-start:1.1rem}
.feat p{color:var(--ink-2)}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.g{position:relative;margin:0;border-radius:var(--radius);overflow:hidden;background:#000;aspect-ratio:3/4}
.g img{width:100%;height:100%;object-fit:cover}
.g--big{grid-column:span 3;aspect-ratio:16/9}
.g--big img{object-position:center 62%}
.g figcaption{position:absolute;inset-inline:0;bottom:0;padding:1.6rem .9rem .7rem;color:#fff;font-size:.9rem;background:linear-gradient(transparent,rgba(0,0,0,.75))}

/* steps */
.steps{list-style:none;display:grid;gap:1rem;max-width:640px}
.steps li{display:flex;gap:1rem;align-items:center;background:var(--paper);padding:1rem 1.2rem;border-radius:var(--radius)}
.steps b{flex:none;width:2.3rem;height:2.3rem;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center;font-family:var(--font-head)}
.warn{margin-top:1.4rem;background:#fff1f0;border:1px solid #f4b8b5;color:#8f1f1b;padding:.8rem 1rem;border-radius:10px;max-width:640px}

/* faq */
details{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:1rem 1.2rem;margin-bottom:.8rem}
summary{cursor:pointer;font-weight:600}
details p{margin-top:.6rem;color:var(--ink-2)}

/* order */
.sec--order{background:var(--ink);color:#fff}
.sec--order h2{color:#fff}
.order__grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:3rem;align-items:start}
.order__info p{color:#b6c3d8;margin-bottom:1.4rem}
.price{display:flex;align-items:baseline;gap:1rem;margin-bottom:1.2rem}
.price__old{color:#8c9bb3}
.price__now{font:700 1.1rem var(--font-head)}
.price__now b{font-size:2.6rem;color:#fff}
.ticks{list-style:none;display:grid;gap:.5rem}
.ticks li::before{content:"✓";color:var(--live);margin-inline-end:.6rem;font-weight:700}

.form{background:var(--white);color:var(--ink);padding:1.6rem;border-radius:20px;display:grid;gap:1.1rem}
.form label{display:grid;gap:.35rem;font-weight:600;font-size:.95rem}
.form input,.form select{width:100%;padding:.8rem 1rem;border:1.5px solid var(--line);border-radius:10px;font:400 1rem var(--font-body);background:#fff;color:var(--ink)}
.form input:focus,.form select:focus{border-color:var(--red);outline:none;box-shadow:0 0 0 3px rgba(228,51,47,.18)}
.form .invalid{border-color:var(--red)}
.err{color:var(--red);font-weight:500;min-height:1em}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.qty{display:flex;align-items:center;gap:.5rem;direction:ltr;justify-content:flex-end}
.qty button{width:44px;height:44px;border-radius:10px;border:1.5px solid var(--line);background:var(--paper);font-size:1.4rem;cursor:pointer}
.qty button:hover{border-color:var(--red)}
.qty input{width:70px;text-align:center;font-weight:700}
.sum{background:var(--paper);border-radius:12px;padding:1rem 1.2rem;display:grid;gap:.4rem}
.sum div{display:flex;justify-content:space-between}
.sum__total{border-top:1px dashed #b9c4d6;padding-top:.5rem;margin-top:.2rem;font-size:1.15rem}
.sum__total b{color:var(--red)}

/* footer / sticky */
.foot{background:#0a1220;color:#8c9bb3;padding:1.4rem 0;text-align:center;font-size:.9rem}
.sticky{display:none;position:fixed;bottom:12px;inset-inline:12px;z-index:30;background:var(--red);color:#fff;text-align:center;padding:.9rem;border-radius:14px;font-weight:700;box-shadow:0 10px 24px rgba(228,51,47,.45)}
.sticky.hide{display:none!important}

/* modal */
.modal{position:fixed;inset:0;background:rgba(7,12,22,.7);display:grid;place-items:center;z-index:50;padding:1rem}
.modal[hidden]{display:none}
.modal__card{background:#fff;border-radius:20px;padding:2rem 1.6rem;width:min(440px,100%);text-align:center;animation:pop .35s ease}
.modal__ok{width:64px;height:64px;margin:0 auto 1rem;border-radius:50%;background:var(--live);color:#fff;font-size:2rem;display:grid;place-items:center}
.modal__card p{color:var(--ink-2);margin:.4rem 0}
.modal__act{display:grid;gap:.6rem;margin-top:1.2rem}
@keyframes pop{from{transform:scale(.9);opacity:0}}

/* responsive */
@media (max-width:860px){
  .hero__grid,.order__grid{grid-template-columns:1fr;gap:2rem}
  .facts__grid{grid-template-columns:repeat(2,1fr)}
  .feat{grid-template-columns:1fr}
  .sticky{display:block}
  body{padding-bottom:70px}
}
@media (max-width:520px){
  .row{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .g--big{grid-column:span 2}
  .demo__room{height:260px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}