/* Rahgar Sazeh Pars — "night works" design system (v1)
   Token-driven: v2 overrides tokens in v2.css without touching components. */
:root{
  --asphalt:#12151C; --concrete:#1E232E; --concrete-2:#242B38;
  --chalk:#E9ECF2; --rebar:#8A93A6; --amber:#F2A33C; --amber-hi:#F7B65C;
  --amber-ink:#191104;
  --line:#33415C; --line-soft:rgba(61,78,110,.35);
  --radius:14px;
  --grid-img:linear-gradient(var(--line-soft) 1px,transparent 1px),
             linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  --hero-overlay:linear-gradient(180deg,rgba(18,21,28,.82) 0%,rgba(18,21,28,.6) 55%,var(--asphalt) 100%);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Vazirmatn",system-ui,sans-serif;
  background:var(--asphalt);color:var(--chalk);
  direction:rtl;text-align:right;line-height:1.9;
  background-image:var(--grid-img);
  background-size:72px 72px;background-attachment:fixed;
}
::selection{background:var(--amber);color:var(--amber-ink)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin-inline:auto;padding-inline:24px}

/* nav */
.nav{position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--asphalt) 86%,transparent);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
.nav-inner{display:flex;align-items:center;gap:26px;padding-block:12px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:44px;width:auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.35}
.brand-txt b{font-weight:800;font-size:1rem}
.brand-txt span{font-size:.7rem;color:var(--rebar);font-weight:300}
.nav-links{display:flex;gap:22px;margin-inline-start:auto;font-size:.92rem;font-weight:500}
.nav-links a{color:var(--rebar);transition:color .2s;padding-block:4px;border-bottom:2px solid transparent}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--chalk)}
.nav-links a.on{color:var(--amber);border-bottom-color:var(--amber)}
@media(max-width:900px){
  .nav-links{display:none}
  .nav .btn{margin-inline-start:auto;padding:.55em 1.1em;font-size:.85rem}
}

/* buttons */
.btn{display:inline-block;padding:.72em 1.6em;border-radius:10px;
  font-weight:700;font-size:.95rem;border:1px solid transparent;
  transition:transform .15s,box-shadow .15s,background .2s;cursor:pointer}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
.btn-amber{background:var(--amber);color:var(--amber-ink)}
.btn-amber:hover{background:var(--amber-hi);transform:translateY(-1px);box-shadow:0 8px 24px rgba(242,163,60,.25)}
.btn-ghost{border-color:var(--line);color:var(--chalk)}
.btn-ghost:hover{border-color:var(--rebar);background:var(--concrete)}

/* home hero (photo + overlay) */
.hero{position:relative;min-height:78vh;display:flex;align-items:flex-end;overflow:hidden}
.hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:saturate(.9)}
.hero::after{content:"";position:absolute;inset:0;background:var(--hero-overlay)}
.hero .wrap{position:relative;z-index:2;padding-block:72px 56px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.8rem;
  font-weight:500;color:var(--amber);letter-spacing:.02em;margin-bottom:20px}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--amber)}
h1{font-size:clamp(2.3rem,5.6vw,3.9rem);font-weight:800;line-height:1.35;max-width:15em}
h1 .thin{font-weight:200;color:var(--rebar)}
.hero h1 .thin{color:#B9C1D1}
.deck{margin-top:18px;max-width:34em;font-weight:300;font-size:1.06rem;color:var(--rebar)}
.hero .deck{color:#C6CCD9}
.deck b{color:var(--chalk);font-weight:600}
.hero-ctas{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}

/* inner page hero */
.page-hero{padding-block:72px 20px}
.page-hero h1{font-size:clamp(2rem,4.6vw,3rem)}

/* proof strip */
.proof{border-block:1px solid var(--line-soft);
  background:color-mix(in srgb,var(--concrete) 55%,transparent)}
.proof-inner{display:grid;grid-template-columns:repeat(4,1fr);padding-block:32px;gap:18px}
.stat{text-align:center;border-inline-start:1px solid var(--line-soft);padding-inline:10px}
.stat:first-child{border-inline-start:none}
.stat .num{font-size:2.1rem;font-weight:800;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1.3}
.stat .lbl{font-size:.84rem;color:var(--rebar);font-weight:300}
@media(max-width:720px){.proof-inner{grid-template-columns:repeat(2,1fr);row-gap:26px}
  .stat:nth-child(3){border-inline-start:none}}

/* sections */
section{padding-block:84px}
.sec-alt{background:color-mix(in srgb,var(--concrete) 40%,transparent);border-block:1px solid var(--line-soft)}
.sec-head{margin-bottom:42px;max-width:38em}
.sec-head .eyebrow{margin-bottom:10px}
.sec-head h2{font-size:clamp(1.55rem,3.2vw,2.2rem);font-weight:800;line-height:1.5}
.sec-head p{color:var(--rebar);font-weight:300;margin-top:8px}

/* cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:900px){.grid-3{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,1fr)}}
.card{background:var(--concrete);border:1px solid var(--line-soft);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-4px);border-color:var(--line)}
.card-img{aspect-ratio:16/10;overflow:hidden;background:var(--concrete-2);position:relative}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card-img img{transform:scale(1.05)}
.card-tag{position:absolute;top:12px;inset-inline-start:12px;z-index:2;
  background:color-mix(in srgb,var(--asphalt) 82%,transparent);
  border:1px solid var(--line);border-radius:6px;
  font-size:.72rem;padding:.2em .8em;color:var(--amber);font-weight:500}
.card-body{padding:20px 22px 24px}
.card-body h3{font-weight:700;font-size:1.06rem}
.card-body .loc{font-size:.8rem;color:var(--rebar);font-weight:300;margin-bottom:10px}
.card-body p{font-size:.9rem;color:var(--rebar);font-weight:300}
.spec{border-top:1px dashed var(--line-soft);display:flex;justify-content:space-between;padding-block:7px;font-size:.83rem}
.spec dt{color:var(--rebar);font-weight:300}
.spec dd{font-weight:600}

/* service card icon variant */
.svc-ic{width:46px;height:46px;stroke:var(--amber);margin-bottom:16px}
.card-pad{padding:28px 26px}

/* filters */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px}
.filter{border:1px solid var(--line-soft);border-radius:999px;background:none;
  color:var(--rebar);font-family:inherit;font-size:.88rem;font-weight:500;
  padding:.4em 1.2em;cursor:pointer;transition:all .2s}
.filter:hover{color:var(--chalk);border-color:var(--rebar)}
.filter.on{background:var(--amber);color:var(--amber-ink);border-color:var(--amber);font-weight:700}
.hide{display:none!important}

/* tables */
.id-table{width:100%;border-collapse:collapse;font-size:.95rem}
.id-table td{padding-block:12px;border-bottom:1px solid var(--line-soft)}
.id-table td:first-child{color:var(--rebar);font-weight:300;width:44%}
.id-table td:last-child{font-weight:600;font-variant-numeric:tabular-nums}

/* split layout */
.split{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:start}
@media(max-width:900px){.split{grid-template-columns:1fr}}

/* certs & partners */
.cert-card .card-img{aspect-ratio:4/3;background:#fff}
.cert-card .card-img img{object-fit:contain;padding:10px}
.cert-card .card-body{padding:14px 16px;text-align:center}
.cert-card h3{font-size:.9rem;font-weight:600}
.partners{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.partner{background:var(--concrete);border:1px solid var(--line-soft);border-radius:10px;
  padding:10px 18px;display:flex;align-items:center;gap:10px}
.partner img{height:44px;width:auto;background:#fff;border-radius:6px;padding:3px}
.partner span{font-size:.82rem;color:var(--rebar)}

/* gallery */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gal a{border-radius:10px;overflow:hidden;border:1px solid var(--line-soft);display:block}
.gal img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .4s}
.gal a:hover img{transform:scale(1.04)}
@media(max-width:720px){.gal{grid-template-columns:repeat(2,1fr)}}

/* contact */
.contact-info .row{display:flex;gap:14px;align-items:baseline;padding-block:12px;
  border-bottom:1px solid var(--line-soft);font-size:.95rem}
.contact-info .k{color:var(--rebar);font-weight:300;min-width:6em}
.contact-info .v{font-weight:600;font-variant-numeric:tabular-nums}
form{display:grid;gap:14px}
label{font-size:.85rem;color:var(--rebar);font-weight:400}
input,textarea{width:100%;background:var(--concrete);border:1px solid var(--line-soft);
  border-radius:10px;color:var(--chalk);padding:.75em 1em;font-family:inherit;font-size:.95rem}
input:focus,textarea:focus{outline:2px solid var(--amber);outline-offset:1px;border-color:transparent}
textarea{min-height:110px;resize:vertical}

/* cta band */
.cta-band{border-block:1px solid var(--line-soft);
  background:color-mix(in srgb,var(--concrete) 55%,transparent);text-align:center}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;margin-bottom:10px}
.cta-band p{color:var(--rebar);font-weight:300;margin-bottom:26px}

/* footer */
footer{border-top:1px solid var(--line-soft);padding-block:32px;font-size:.85rem;color:var(--rebar);font-weight:300}
.foot-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot-inner img{height:36px;opacity:.85}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}