/* کهکشان — «خانهٔ هوشمند در شب»: سرمه‌ایِ شب، فیروزه‌ایِ نئون، ستاره‌ها؛ هرمتان برای تیتر (رقم‌ها از وزیرمتن)، وزیرمتن برای متن */
@font-face{font-family:Harmattan;font-weight:700;font-display:swap;src:url(/a/fonts/vazirmatn-arabic-600-normal.woff2) format('woff2');unicode-range:U+066B-066C,U+06F0-06F9}
@font-face{font-family:Harmattan;font-weight:700;font-display:swap;src:url(/a/fonts/harmattan-arabic-700-normal.woff2) format('woff2');unicode-range:U+0600-066A,U+066D-06EF,U+06FA-06FF,U+200C-200E,U+FB50-FDFF,U+FE80-FEFC}
@font-face{font-family:Harmattan;font-weight:700;font-display:swap;src:url(/a/fonts/harmattan-latin-700-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:Vazir;font-weight:400;font-display:swap;src:url(/a/fonts/vazirmatn-arabic-400-normal.woff2) format('woff2');unicode-range:U+0600-06FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE80-FEFC}
@font-face{font-family:Vazir;font-weight:400 800;font-display:swap;src:url(/a/fonts/vazirmatn-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:Vazir;font-weight:600 800;font-display:swap;src:url(/a/fonts/vazirmatn-arabic-600-normal.woff2) format('woff2');unicode-range:U+0600-06FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE80-FEFC}

:root{--bg:#f1f4f9;--surface:#fff;--ink:#101a2c;--muted:#5a6578;--line:#dde4ee;--brand:#0c1424;--brand-ink:#fff;--accent:#19c3e6;
--night:#0c1424;--night-2:#15223b;--neon:#19c3e6;--neon-d:#0e93b0;--radius:14px;--radius-sm:10px;
--shadow:0 1px 2px rgb(12 20 36/.06),0 18px 40px rgb(12 20 36/.12);--font-body:Vazir,Tahoma,sans-serif;--font-display:Harmattan,Vazir,sans-serif;
--ft-bg:#0c1424;--ft-ink:#dbe6f5}
body{line-height:1.9}
h1,h2,.sec__title{font-family:var(--font-display);font-weight:700;letter-spacing:0;line-height:1.5}
.hd{background:color-mix(in srgb,#fff 94%,transparent)}
.brand svg{width:44px;height:44px}
.brand__text b{font-family:var(--font-display);font-size:26px;color:var(--night)}
.brand__text small{color:var(--neon-d)}
.nav a:hover,.nav a[aria-current=page]{background:#e3f6fb;color:var(--night)}
.btn--brand{background:var(--night);color:#fff}
.btn--neon{background:var(--neon);color:#04202a}
.card__img--art{background:#eef2f8}
.ft{background:radial-gradient(1px 1px at 20% 30%,#fff,transparent),radial-gradient(1px 1px at 70% 60%,#fff,transparent),radial-gradient(1px 1px at 40% 80%,#fff,transparent),var(--ft-bg)}
.ft .brand__text b{color:#fff}

/* ---------- hero: the smart house at night ---------- */
.k-hero{position:relative;overflow:hidden;color:#dbe6f5;background:radial-gradient(1.5px 1.5px at 12% 18%,#fff,transparent),radial-gradient(1px 1px at 30% 40%,#fff,transparent),radial-gradient(1.5px 1.5px at 52% 12%,#fff,transparent),radial-gradient(1px 1px at 78% 30%,#fff,transparent),radial-gradient(1px 1px at 90% 10%,#fff,transparent),radial-gradient(600px 360px at 70% 70%,rgb(25 195 230/.18),transparent 70%),linear-gradient(180deg,#0a1120,#15223b)}
.k-hero__in{display:grid;gap:24px;align-items:center;padding-block:clamp(30px,5vw,70px)}
@media (min-width:960px){.k-hero__in{grid-template-columns:.9fr 1.1fr;gap:36px}}
.k-hero__in>*{min-width:0}
.k-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;color:var(--neon)}
.k-eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--neon);box-shadow:0 0 12px var(--neon)}
.k-hero h1{font-size:clamp(36px,5.6vw,60px);margin:10px 0 6px;color:#fff}
.k-hero h1 em{font-style:normal;color:var(--neon)}
.k-hero p{color:#a9b8cf;max-width:520px}
.k-house{position:relative}
.k-house svg{display:block;width:100%;height:auto}
.k-spot{position:absolute;transform:translate(-50%,-50%);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;text-decoration:none}
.k-spot::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--neon);animation:kp 2.4s ease-out infinite}
.k-spot i{position:relative;width:12px;height:12px;border-radius:50%;background:var(--neon);box-shadow:0 0 14px var(--neon)}
.k-spot span{position:absolute;top:calc(100% + 4px);white-space:nowrap;padding:3px 10px;border-radius:8px;background:rgb(12 20 36/.85);color:#fff;font-size:12.5px;font-weight:700;border:1px solid rgb(25 195 230/.4)}
@keyframes kp{0%{transform:scale(.6);opacity:1}100%{transform:scale(1.8);opacity:0}}
@media (prefers-reduced-motion:reduce){.k-spot::before{animation:none}}
@media (max-width:600px){.k-spot span{display:none}}

.k-hd{display:flex;align-items:end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.k-hd h2{font-size:clamp(28px,3.8vw,40px);color:var(--night)}
.k-cats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media (min-width:700px){.k-cats{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:1100px){.k-cats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.k-cat{display:flex;align-items:center;gap:12px;padding:14px;border-radius:14px;background:#fff;border:1px solid var(--line);text-decoration:none}
.k-cat span:first-child{flex:none;width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:var(--night);color:var(--neon)}
.k-cat b{display:block;font-size:15.5px}
.k-cat small{color:var(--muted)}
.k-cat:hover{border-color:var(--neon)}
.k-faq details{border-bottom:1px solid var(--line);padding:12px 0}
.k-faq summary{cursor:pointer;font-weight:700;min-height:48px;display:flex;align-items:center}
.k-faq p{color:var(--muted)}