@import url('https://cdn.jsdelivr.net/gh/rastikerdar/vazirmatn@v33.003/Vazirmatn-font-face.css');

/* پارس‌پلیمر البرز — سایت شرکتی تولیدی/صادراتی | نمونه‌کار (فقط فرانت) */
:root{
  --bg:#f4f6f9;
  --surface:#ffffff;
  --surface-2:#e9edf3;
  --line:#d8dfe8;
  --ink:#0f1c2e;
  --ink-2:#5a6b80;
  --brand:#123a6b;
  --brand-dark:#0b2749;
  --brand-soft:#e4ecf7;
  --accent:#f26a1b;
  --accent-soft:#ffece0;
  --steel:#7d8fa6;
  --ok:#0f9d6e;
  --r:10px;
  --max:1220px;
  --shadow:0 1px 2px rgba(15,28,46,.05), 0 10px 30px rgba(15,28,46,.07);
  --shadow-lg:0 20px 55px rgba(15,28,46,.16);
}
[data-theme="dark"]{
  --bg:#0b1420;
  --surface:#111d2c;
  --surface-2:#17263a;
  --line:#23374f;
  --ink:#e9f0f8;
  --ink-2:#93a7bf;
  --brand:#3c7ac4;
  --brand-dark:#2b5f9e;
  --brand-soft:#14283f;
  --accent-soft:#33200f;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 10px 30px rgba(0,0,0,.4);
  --shadow-lg:0 20px 55px rgba(0,0,0,.55);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Vazirmatn',Tahoma,sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.85;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.kicker{font-size:12.5px;font-weight:800;letter-spacing:.08em;color:var(--accent)}

/* ---------- هدر ---------- */
.topbar{background:var(--brand-dark);color:#cfe0f3;font-size:12.5px;padding:8px 0}
.topbar .wrap{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center}
.topbar a{opacity:.9}
.topbar a:hover{color:#fff}
header.site{position:sticky;top:0;z-index:70;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:18px;padding:13px 0}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px}
.logo .m{width:40px;height:40px;border-radius:9px;background:linear-gradient(150deg,var(--brand),var(--steel));display:grid;place-items:center;color:#fff;font-size:17px}
.logo small{display:block;font-size:10.5px;font-weight:500;color:var(--ink-2);letter-spacing:.04em}
.menu{display:flex;gap:2px;margin-inline-start:14px}
.menu a{padding:9px 13px;border-radius:8px;font-size:14.5px;color:var(--ink-2)}
.menu a:hover{background:var(--surface-2);color:var(--ink)}
.menu a.active{color:var(--brand);font-weight:800;background:var(--brand-soft)}
.nav .sp{flex:1}
.tbtn,.burger{width:40px;height:40px;border-radius:9px;border:1px solid var(--line);background:var(--surface);color:var(--ink);display:grid;place-items:center;font-size:15px}
.tbtn:hover,.burger:hover{border-color:var(--brand);color:var(--brand)}
.burger{display:none}
@media(max-width:1040px){
  .menu{display:none;position:absolute;top:100%;inset-inline:0;flex-direction:column;background:var(--surface);padding:10px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);margin:0}
  .menu.open{display:flex}
  .burger{display:grid}
  .nav{position:relative}
  .nav .cta{display:none}
}

/* ---------- دکمه ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:8px;font-weight:700;font-size:14.5px;border:1px solid transparent;transition:.16s;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(242,106,27,.28)}
.btn-primary:hover{background:#d95a10;transform:translateY(-1px)}
.btn-blue{background:var(--brand);color:#fff}
.btn-blue:hover{background:var(--brand-dark)}
.btn-ghost{border-color:var(--line);background:var(--surface);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-block{width:100%}

/* ---------- هیرو ---------- */
.hero{position:relative;background:linear-gradient(135deg,var(--brand-dark),var(--brand) 65%,#255d9e);color:#fff;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:44px 44px}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;padding-block:62px 56px}
@media(max-width:920px){.hero .wrap{grid-template-columns:1fr;gap:28px;padding-block:44px 40px}}
.hero .kicker{color:#ffb98a}
.hero h1{font-size:clamp(28px,4.3vw,46px);line-height:1.4;margin:14px 0 16px;font-weight:800;letter-spacing:-.5px}
.hero p{font-size:16.5px;opacity:.9;max-width:52ch;margin:0 0 26px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3);color:#fff}
.hero .btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff}
.hero-art{border-radius:14px;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.18)}
.hero-art svg{width:100%;display:block}
.hero-strip{border-top:1px solid rgba(255,255,255,.16);position:relative}
.hero-strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:0}
.hero-strip div{padding:20px 22px;border-inline-start:1px solid rgba(255,255,255,.16)}
.hero-strip div:first-child{border:0}
.hero-strip b{display:block;font-size:23px;font-weight:800}
.hero-strip span{font-size:12.5px;opacity:.82}
@media(max-width:760px){.hero-strip .wrap{grid-template-columns:1fr 1fr}.hero-strip div:nth-child(-n+2){border-top:0}}

/* ---------- بخش‌ها ---------- */
section{padding:58px 0}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:22px;margin-bottom:30px;flex-wrap:wrap}
h2{font-size:clamp(21px,2.8vw,30px);margin:8px 0 0;font-weight:800;letter-spacing:-.4px}
.head p{margin:8px 0 0;color:var(--ink-2);font-size:14.5px;max-width:62ch}
.link{color:var(--brand);font-weight:700;font-size:14px}
.link:hover{text-decoration:underline}

/* ---------- کارت محصول صنعتی ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:980px){.grid-3{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-3,.grid-4{grid-template-columns:1fr}}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.pcard .ph{aspect-ratio:4/3;background:var(--surface-2);position:relative}
.pcard .ph svg{width:100%;height:100%;display:block}
.pcard .tag{position:absolute;top:10px;inset-inline-start:10px;background:var(--brand);color:#fff;font-size:11px;padding:4px 10px;border-radius:5px;font-weight:700}
.pcard .b{padding:16px 17px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.pcard h3{margin:0;font-size:16px;font-weight:800}
.pcard .cat{font-size:12px;color:var(--accent);font-weight:700}
.pcard p{margin:0;font-size:13.5px;color:var(--ink-2);line-height:1.85}
.pcard .specs{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:10px}
.pcard .specs span{font-size:11.5px;background:var(--surface-2);border-radius:5px;padding:4px 9px;color:var(--ink-2)}

/* ---------- بلوک صنعتی ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:26px}}
.prose{color:var(--ink-2);font-size:15px;line-height:2.1}
.prose h3{color:var(--ink);font-size:19px;margin:26px 0 8px}
.ticks{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-direction:column;gap:13px}
.ticks li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px}
.ticks .t{width:24px;height:24px;flex:none;border-radius:5px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:800;font-size:13px}
[data-theme="dark"] .ticks .t{color:var(--ink)}
.frame{border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.frame svg{width:100%;display:block}

/* ---------- خط تولید / فرآیند ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface)}
@media(max-width:1000px){.flow{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.flow{grid-template-columns:1fr}}
.flow div{padding:22px 20px;border-inline-start:1px solid var(--line)}
.flow div:first-child{border-inline-start:0}
.flow .n{font-size:12px;font-weight:800;color:var(--accent);letter-spacing:.08em}
.flow b{display:block;font-size:15px;margin:8px 0 5px}
.flow span{font-size:13px;color:var(--ink-2);line-height:1.85}

/* ---------- استانداردها ---------- */
.certs{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
@media(max-width:900px){.certs{grid-template-columns:repeat(3,1fr)}}
.certs div{background:var(--surface);padding:26px 10px;text-align:center}
.certs b{display:block;font-size:15px;font-weight:800;color:var(--brand)}
.certs span{font-size:11.5px;color:var(--ink-2)}

/* ---------- جدول فنی ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:14px}
th,td{padding:13px 16px;text-align:start;border-bottom:1px solid var(--line)}
th{background:var(--surface-2);font-size:13px;font-weight:800;color:var(--ink)}
tbody tr:hover{background:var(--surface-2)}
tbody tr:last-child td{border-bottom:0}

/* ---------- پروژه‌ها ---------- */
.proj{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.2s}
.proj:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.proj .ph{aspect-ratio:16/10;background:var(--surface-2)}
.proj .ph svg{width:100%;height:100%}
.proj .b{padding:16px 18px 20px}
.proj h3{margin:0 0 6px;font-size:16px}
.proj .meta{font-size:12.5px;color:var(--ink-2)}
.proj .val{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);font-size:13px;color:var(--brand);font-weight:700}

/* ---------- نمایندگی‌ها ---------- */
.agents{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:860px){.agents{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.agents{grid-template-columns:1fr}}
.agent{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.agent b{display:block;font-size:15px}
.agent span{font-size:13px;color:var(--ink-2)}

/* ---------- CTA ---------- */
.band{border-radius:12px;padding:44px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--brand-dark),var(--brand) 60%,#2a6bb5);display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center}
.band:before{content:"";position:absolute;inset:0;opacity:.14;background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);background-size:40px 40px}
.band h2,.band p{position:relative;margin:0}
.band p{opacity:.9;margin-top:8px;max-width:54ch}
.band .btn{position:relative}
@media(max-width:760px){.band{grid-template-columns:1fr;padding:30px}}

/* ---------- صفحه داخلی ---------- */
.page-head{background:var(--surface-2);border-bottom:1px solid var(--line);padding:34px 0}
.crumbs{font-size:13px;color:var(--ink-2);margin-bottom:8px}
.crumbs a:hover{color:var(--brand)}
.page-head h1{font-size:clamp(24px,3.4vw,36px);margin:0 0 8px;font-weight:800}
.page-head p{margin:0;color:var(--ink-2);max-width:64ch}

.layout{display:grid;grid-template-columns:250px 1fr;gap:26px;padding:34px 0}
@media(max-width:900px){.layout{grid-template-columns:1fr}}
.side{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px;align-self:start;position:sticky;top:92px}
.side h4{margin:0 0 12px;font-size:14px}
.side .chk{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--ink-2);padding:5px 0;cursor:pointer}
.side .chk input{accent-color:var(--brand)}
.side .chk:hover{color:var(--ink)}
.side .g{padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--line)}
.side .g:last-child{border:0;margin:0;padding:0}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:18px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-2)}
input,select,textarea{width:100%;font-family:inherit;font-size:14.5px;padding:12px 14px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){.row2{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.info{display:flex;gap:13px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px;margin-bottom:12px}
.info .i{width:42px;height:42px;flex:none;border-radius:8px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:18px}
[data-theme="dark"] .info .i{color:var(--ink)}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:15px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700;font-size:14.5px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:before{content:"+";color:var(--accent);font-weight:800;margin-inline-end:10px}
.faq details[open] summary:before{content:"−"}
.faq p{margin:10px 0 0;font-size:14px;color:var(--ink-2)}

/* ---------- فوتر ---------- */
footer.site{background:#081a2e;color:#b9cbdd;margin-top:60px;padding:50px 0 22px}
[data-theme="dark"] footer.site{background:#050f1a}
.f-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1)}
@media(max-width:860px){.f-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.f-grid{grid-template-columns:1fr}}
footer h4{color:#fff;font-size:14.5px;margin:0 0 14px}
footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
footer a{font-size:13.5px;opacity:.85}
footer a:hover{opacity:1;color:var(--accent)}
footer p{font-size:13.5px;opacity:.8;line-height:1.9;margin:0 0 12px}
.f-bottom{display:flex;justify-content:space-between;gap:14px;padding-top:18px;font-size:12.5px;opacity:.72;flex-wrap:wrap}

.toast{position:fixed;bottom:24px;inset-inline-start:24px;background:var(--ink);color:#fff;padding:13px 20px;border-radius:8px;font-size:14px;box-shadow:var(--shadow-lg);z-index:200;opacity:0;transform:translateY(12px);transition:.25s;pointer-events:none}
.toast.show{opacity:1;transform:none}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.rise{animation:rise .5s cubic-bezier(.2,.7,.3,1) both}
@media(prefers-reduced-motion:reduce){.rise{animation:none}}

/* ---------- نسخه انگلیسی ---------- */
body.ltr{direction:ltr}
body.ltr .menu{margin-inline-start:14px}