/* Haqyar Chemicals – Titanium Dioxide SR-2377 site
   One stylesheet for English (LTR) and Dari (RTL): logical properties throughout. */

@font-face{font-family:Poppins;font-weight:400;font-style:normal;font-display:swap;src:url(fonts/poppins-400.woff) format("woff")}
@font-face{font-family:Poppins;font-weight:500;font-style:normal;font-display:swap;src:url(fonts/poppins-500.woff) format("woff")}
@font-face{font-family:Poppins;font-weight:700;font-style:normal;font-display:swap;src:url(fonts/poppins-700.woff) format("woff")}

:root{
  --navy:#0a2a52;
  --navy-deep:#071d3a;
  --blue:#0a67c2;
  --blue-d:#084f96;
  --ink:#10253f;
  --body:#2b4059;
  --muted:#52667d;
  --line:#d8e2ed;
  --mist:#f5f7fa;
  --grey-photo:#f5f5f5;
  --wa:#25d366;
  --wa-hover:#3be07a;
  --wa-ink:#052e1a;
  --r-lg:28px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 30px 60px -30px rgba(10,42,82,.45);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:92px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  margin:0;background:#fff;color:var(--body);
  font:400 1.0625rem/1.7 Poppins,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  text-rendering:optimizeLegibility;
}
:lang(fa-AF) body,body:lang(fa-AF){
  font-family:Vazirmatn,Poppins,"Noto Sans Arabic","Segoe UI",Tahoma,system-ui,sans-serif;
}
body:lang(ps-AF){
  font-family:"Noto Sans Arabic",Poppins,Vazirmatn,"Segoe UI",Tahoma,system-ui,sans-serif;
}
[dir=rtl] body{line-height:1.95}
img,picture{display:block;max-width:100%;height:auto}
a{color:var(--blue);text-underline-offset:3px}
a:hover{color:var(--blue-d)}
h1,h2,h3,h4{margin:0;color:var(--navy);font-weight:700;letter-spacing:-.015em;line-height:1.15}
[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] h3,[dir=rtl] h4{letter-spacing:0;line-height:1.45}
p{margin:0 0 1em}
h2{margin-bottom:18px}
.nw{white-space:nowrap}
sub{font-size:.65em;line-height:0}
:focus-visible{outline:3px solid #2f8cf0;outline-offset:3px;border-radius:6px}

.wrap{width:min(1160px,100% - 40px);margin-inline:auto}
.skip{position:absolute;inset-inline-start:12px;top:-80px;z-index:100;background:#fff;color:var(--navy);padding:10px 16px;border-radius:10px;font-weight:700}
.skip:focus{top:12px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:52px;padding:0 26px;border-radius:14px;border:2px solid transparent;
  font-family:inherit;font-weight:700;font-size:1rem;line-height:1.2;text-decoration:none;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease;
}
.btn svg{width:22px;height:22px;flex:none;fill:currentColor}
.btn-wa{background:var(--wa);color:var(--wa-ink)}
.btn-wa:hover{background:var(--wa-hover);color:var(--wa-ink);transform:translateY(-1px);box-shadow:0 12px 24px -10px rgba(37,211,102,.7)}
.btn-line{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-line:hover{border-color:var(--blue);color:var(--blue-d)}
.btn-sm{min-height:44px;padding:0 18px;font-size:.92rem;border-radius:12px}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{border-color:#fff;color:#fff}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);-webkit-backdrop-filter:saturate(1.4) blur(12px);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:18px;min-height:80px}
.brand{display:block;flex:none}
.brand img{height:60px;width:auto}
.nav{display:flex;align-items:center;gap:2px;margin-inline-start:auto}
.nav a{padding:10px 13px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:500;font-size:.94rem;white-space:nowrap}
.nav a:hover,.nav a[aria-current=page]{background:var(--mist);color:var(--blue-d)}
.nav .lang{border:1px solid var(--line);margin-inline-start:6px}
.header-cta{flex:none}
.nav-toggle{display:none;margin-inline-start:auto;width:46px;height:46px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--navy);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,#eef4fa 0,#fff 100%);padding:clamp(28px,5vw,68px) 0 clamp(36px,5vw,60px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:clamp(28px,5vw,72px);align-items:center}
.hero h1{font-size:clamp(2.1rem,4.4vw,3.5rem);letter-spacing:-.028em;line-height:1.08}
[dir=rtl] .hero h1{font-size:clamp(1.9rem,4vw,3rem)}
.lead{font-size:1.14rem;color:var(--body);max-width:34em;margin:20px 0 28px}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.fineprint{font-size:.92rem;color:var(--muted);margin:16px 0 0;max-width:34em}
.hero-photo{border-radius:var(--r-lg);overflow:hidden;background:#d5d9dc;box-shadow:var(--shadow);aspect-ratio:740/768}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.hero-photo.is-square{aspect-ratio:1/1}
.crumbs{font-size:.9rem;color:var(--muted);margin:0 0 18px}
.crumbs a{color:var(--muted)}
.crumbs>span:not(.nw){padding:0 8px;color:#9fb0c3}

@media (prefers-reduced-motion:no-preference){
  .hero-copy>*{animation:rise .7s cubic-bezier(.2,.7,.2,1) both}
  .hero-copy>*:nth-child(2){animation-delay:.07s}
  .hero-copy>*:nth-child(3){animation-delay:.14s}
  .hero-copy>*:nth-child(4){animation-delay:.21s}
  .hero-copy>*:nth-child(5){animation-delay:.28s}
  .hero-photo{animation:settle .95s cubic-bezier(.2,.7,.2,1) .1s both}
  @keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
  @keyframes settle{from{opacity:0;transform:translateY(22px) scale(.97)}to{opacity:1;transform:none}}
}

/* ---------- Spec strip ---------- */
.specs{border-block:1px solid var(--line);background:#fff}
.specs dl{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin:0}
.specs dl>div{padding:20px 22px;border-inline-start:1px solid var(--line)}
.specs dl>div:first-child{border-inline-start:0;padding-inline-start:0}
.specs dt{font-size:.84rem;color:var(--muted);margin:0 0 2px}
.specs dd{margin:0;font-weight:700;color:var(--navy);line-height:1.35}

/* ---------- Sections ---------- */
.block{padding:clamp(52px,7vw,92px) 0}
.block.mist{background:var(--mist)}
.block h2{font-size:clamp(1.6rem,3vw,2.3rem);margin-bottom:18px}
.block h3{font-size:1.2rem;margin-bottom:8px}
.prose{max-width:62ch}
.prose p{color:var(--body)}
.prose a{font-weight:500}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,72px);align-items:center}
.split.flip>:first-child{order:2}
.frame{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);background:var(--mist)}
.frame img{width:100%;height:auto}
.use{padding-block:clamp(26px,4vw,44px);border-top:1px solid var(--line)}
h2+.use{border-top:0;padding-top:8px}
.use p{max-width:46ch}
.text-link{font-weight:700;text-decoration:none;border-bottom:2px solid currentColor;padding-bottom:1px}
.other-use{border-top:1px solid var(--line);padding-top:28px;margin-top:8px;max-width:62ch}

.ticks{list-style:none;margin:0 0 1em;padding:0;display:grid;gap:12px;max-width:62ch}
.ticks li{position:relative;padding-inline-start:34px}
.ticks li::before{content:"";position:absolute;inset-inline-start:4px;top:.5em;width:7px;height:13px;border-inline-end:3px solid var(--blue);border-block-end:3px solid var(--blue);transform:rotate(40deg)}
[dir=rtl] .ticks li::before{transform:rotate(-40deg)}

.note{background:#fff;border:1px solid var(--line);border-inline-start:5px solid var(--blue);border-radius:var(--r-sm);padding:18px 22px;max-width:62ch;color:var(--body)}
.mist .note{background:#fff}
.note p:last-child{margin:0}

/* spec table */
.spec-table{width:100%;border-collapse:collapse;max-width:640px}
.spec-table th,.spec-table td{padding:14px 12px;text-align:start;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th{font-weight:500;color:var(--muted);width:40%}
.spec-table td{font-weight:700;color:var(--navy)}
.spec-table tr:first-child th,.spec-table tr:first-child td{border-top:1px solid var(--line)}

/* band with full-width product photo (photo background matches section) */
.band{background:var(--grey-photo);overflow:hidden}
.band .split{gap:0}
.band .band-copy{padding:clamp(44px,6vw,80px) 0}
.band img{width:100%;height:auto;-webkit-mask-image:linear-gradient(to right,transparent 0,#000 14%);mask-image:linear-gradient(to right,transparent 0,#000 14%)}
[dir=rtl] .band img{-webkit-mask-image:linear-gradient(to left,transparent 0,#000 14%);mask-image:linear-gradient(to left,transparent 0,#000 14%)}

/* steps */
.steps{list-style:none;margin:36px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,3vw,40px);counter-reset:s}
.steps li{border-top:3px solid var(--navy);padding-top:22px}
.steps li::before{counter-increment:s;content:counter(s);display:block;font-size:2.5rem;font-weight:700;line-height:1;color:var(--blue);margin-bottom:14px}
[dir=rtl] .steps li::before{content:counter(s,persian)}
.steps h3{font-size:1.15rem;margin-bottom:6px}
.steps p{margin:0;color:var(--body)}

/* FAQ */
.faq{max-width:780px}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;position:relative;padding:20px 44px 20px 0;font-weight:700;color:var(--navy);font-size:1.04rem}
[dir=rtl] .faq summary{padding:20px 0 20px 44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;inset-inline-end:6px;top:50%;width:11px;height:11px;border-inline-end:3px solid var(--blue);border-block-end:3px solid var(--blue);transform:translateY(-70%) rotate(45deg);transition:transform .22s ease}
.faq details[open] summary::after{transform:translateY(-25%) rotate(-135deg)}
.faq details p{margin:0;padding:0 0 22px;max-width:62ch;color:var(--body)}
.faq summary:hover{color:var(--blue-d)}

/* related links */
.link-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.link-row a{padding:12px 18px;border:1px solid var(--line);border-radius:12px;color:var(--navy);text-decoration:none;font-weight:500;background:#fff}
.link-row a:hover{border-color:var(--blue);color:var(--blue-d)}

/* closing call-to-action */
.cta{background:var(--navy);color:#cfe0f3;padding:clamp(52px,7vw,88px) 0}
.cta .split{align-items:start}
.cta h2{color:#fff;font-size:clamp(1.7rem,3.2vw,2.5rem);margin-bottom:14px}
.cta p{color:#cfe0f3;max-width:34em}
.cta .actions{margin-top:24px}
.contact-list{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.contact-list li{padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.16)}
.contact-list li:last-child{border-bottom:0;padding-bottom:0}
.contact-list small{display:block;color:#9bb6d4;font-size:.84rem;margin-bottom:2px}
.contact-list a,.contact-list span{color:#fff;font-weight:700;font-size:1.1rem;text-decoration:none;overflow-wrap:anywhere}
.contact-list a:hover{text-decoration:underline}

/* footer */
.site-footer{background:var(--navy-deep);color:#b8c9dd;padding:54px 0 28px;font-size:.96rem}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:clamp(28px,5vw,64px)}
.foot-logo{width:230px;height:auto;filter:brightness(0) invert(1);opacity:.95;margin-bottom:14px}
.site-footer h2{font-size:1rem;color:#fff;margin-bottom:14px;letter-spacing:0}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.site-footer a{color:#b8c9dd;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer p{margin:0}
.site-footer .foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:.86rem;color:#8ea6c0}

/* WhatsApp floating button (desktop) and sticky bar (mobile) */
.wa-float{position:fixed;inset-inline-end:22px;bottom:22px;z-index:45;display:inline-flex;align-items:center;gap:10px;min-height:56px;padding:0 22px 0 18px;border-radius:999px;background:var(--wa);color:var(--wa-ink);font-weight:700;text-decoration:none;box-shadow:0 14px 30px -10px rgba(5,46,26,.55)}
.wa-float:hover{background:var(--wa-hover);color:var(--wa-ink)}
.wa-float svg{width:26px;height:26px;fill:currentColor}
.mbar{display:none}

/* 404 */
.lost{padding:clamp(60px,10vw,120px) 0;text-align:start}
.lost p{max-width:46ch}

/* ---------- Responsive ---------- */
@media (max-width:1060px){
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .nav{display:none;position:absolute;inset-inline:0;top:100%;flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:12px 20px 18px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 20px 30px -20px rgba(10,42,82,.3)}
  .nav.open{display:flex}
  .nav a{padding:14px 12px;font-size:1rem}
  .nav .lang{margin:6px 0 0;text-align:center}
  .site-header{position:sticky}
}
@media (max-width:900px){
  .hero-grid,.split{grid-template-columns:minmax(0,1fr)}
  .split.flip>:first-child{order:0}
  .hero-photo{max-width:520px}
  .specs dl{grid-template-columns:repeat(2,minmax(0,1fr))}
  .specs dl>div{border-inline-start:0;padding-inline:0;border-bottom:1px solid var(--line)}
  .specs dl>div:nth-child(odd){padding-inline-end:16px}
  .specs dl>div:nth-child(even){padding-inline-start:16px;border-inline-start:1px solid var(--line)}
  .specs dl>div:last-child{grid-column:1/-1;border-bottom:0;border-inline-start:0;padding-inline-start:0}
  .steps{grid-template-columns:minmax(0,1fr);gap:26px}
  .foot-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .foot-grid>:first-child{grid-column:1/-1}
  .band .band-copy{padding-bottom:12px}
}
@media (max-width:760px){
  body{padding-bottom:84px}
  .wa-float{display:none}
  .mbar{display:grid;grid-template-columns:1fr;gap:10px;position:fixed;inset-inline:0;bottom:0;z-index:45;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -10px 28px -14px rgba(10,42,82,.35)}
  .mbar .btn{min-height:50px;padding:0 12px;font-size:.96rem}
  .brand img{height:52px}
  .bar{min-height:70px}
  .actions .btn{flex:1 1 100%}
  .hero-photo{max-width:none}
}
@media (max-width:520px){
  .wrap{width:min(1160px,100% - 32px)}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .spec-table th{width:44%}
}
@media print{
  .site-header,.wa-float,.mbar,.nav-toggle{display:none!important}
  body{padding:0}
}

/* extra hero image ratios */
.hero-photo.is-wide{aspect-ratio:4/3}
.hero-photo.is-square{aspect-ratio:1/1}

.hero-photo picture{display:block;height:100%}
.hero-photo.is-auto{aspect-ratio:auto;background:none}
.hero-photo.is-auto picture,.hero-photo.is-auto img{height:auto}

.spec-table{margin-top:8px}
.sub-block{margin-top:clamp(36px,5vw,60px)}
.use h3{font-size:clamp(1.25rem,2.2vw,1.55rem)}
.use .ticks{margin-top:16px}
@media (min-width:1061px){.nav a{padding:10px 12px}}

.use h4{font-size:clamp(1.2rem,2.1vw,1.45rem);margin-bottom:10px;color:var(--navy)}
.sub-intro{padding-top:clamp(30px,4vw,48px);border-top:1px solid var(--line)}
.sub-intro h3{font-size:clamp(1.25rem,2.2vw,1.55rem)}