:root{
  --bg: #F8F5EE;
  --bg-soft: #E3D9CC;
  --ink: #182A38;
  --ink-soft: #3A2923;
  --accent: #A06A55;
  --line: color-mix(in srgb, var(--ink) 15%, transparent);
  --btn: #182A38;
  --btn-ink: #F8F5EE;
  --ring: rgba(24,42,56,0.08);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg: #182A38;
    --bg-soft: #3A2923;
    --ink: #F8F5EE;
    --ink-soft: #E3D9CC;
    --accent: #B58A63;
    --line: color-mix(in srgb, var(--ink) 15%, transparent);
    --btn: #F8F5EE;
    --btn-ink: #182A38;
    --ring: rgba(248,245,238,0.08);
  }
}
:root[data-theme="dark"]{
  --bg: #182A38; --bg-soft: #3A2923; --ink: #F8F5EE; --ink-soft: #E3D9CC;
  --accent: #B58A63; --line: color-mix(in srgb, var(--ink) 15%, transparent); --btn: #F8F5EE; --btn-ink: #182A38;
  --ring: rgba(248,245,238,0.08);
}
  html{ scroll-behavior:smooth; scroll-padding-top: calc(76px + env(safe-area-inset-top,0px)); }
  *,*::before,*::after{ box-sizing:border-box; }
  body{
    margin:0; background:var(--bg); color:var(--ink);
    font-family:'Vazirmatn', system-ui, sans-serif; line-height:1.85;
    padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
    -webkit-font-smoothing:antialiased;
  }
  a{ color:inherit; text-decoration:none; }
  img,svg{ max-width:100%; display:block; }
  .wrap{ max-width:1240px; margin:0 auto; padding:0 clamp(20px,5vw,48px); }

  /* header */
  header.site{
    position:sticky; top:0; z-index:50; background:color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter:blur(10px); border-bottom:1px solid var(--line);
    padding-top:env(safe-area-inset-top,0px);
  }
  .nav{ display:flex; align-items:center; justify-content:space-between; padding:18px clamp(20px,5vw,48px); max-width:1240px; margin:0 auto; }
  .logo{ font-weight:800; font-size:1.15rem; letter-spacing:.5px;display: flex; flex-direction: row; align-items: center;  }
  .logoimg{width: 40px; height: 40px;  margin:0 5px;  filter: brightness(0) saturate(100%) invert(17%) sepia(11%) saturate(7488%) hue-rotate(344deg) brightness(92%) contrast(92%);}
  .logo span{ color:var(--accent); }
  .nav-links{ display:flex; align-items:center; gap:32px; font-size:.94rem; font-weight:500; }
  .nav-links a{ color:var(--ink-soft); position:relative; padding:4px 0; transition:color .2s; }
  .nav-links a:hover{ color:var(--ink); }
  .nav-links a::after{ content:''; position:absolute; right:0; bottom:-3px; width:0; height:1px; background:var(--accent); transition:width .3s; }
  .nav-links a:hover::after{ width:100%; }
  .nav-right{ display:flex; align-items:center; gap:18px; }
  .icon-btn{ width:38px; height:38px; border-radius:50%; display:flex; align-items:center; justify-content:center; border:1px solid var(--line); }
  .icon-btn svg{ width:16px; height:16px; stroke:var(--ink); }
  .burger{ display:none; background:none; border:0; cursor:pointer; }
  .burger span{ display:block; width:22px; height:1.6px; background:var(--ink); margin:5px 0; }
  @media (max-width:900px){
    .nav-links{ position:fixed; inset:calc(70px + env(safe-area-inset-top,0px)) 0 auto 0; flex-direction:column; align-items:flex-start;
      background:var(--bg); border-bottom:1px solid var(--line); padding:6px clamp(20px,5vw,48px) 20px;
      transform:translateY(-8px); opacity:0; pointer-events:none; transition:.25s; }
    .nav-links.open{ transform:none; opacity:1; pointer-events:auto; }
    .nav-links a{ width:100%; padding:13px 0; border-bottom:1px solid var(--line); }
    .burger{ display:block; }
  }

  /* hero slider */
  .hero{ position:relative; overflow:hidden; height:min(88vh, 720px); min-height:460px; }
  .slide{
    position:absolute; inset:0; opacity:0; transition:opacity 1.1s ease;
    display:flex; align-items:flex-end; 
  }
  .slide.active{ opacity:1; }
  .s1{ 
    /* background:
      radial-gradient(120% 100% at 85% 0%, rgba(255,255,255,.10), transparent 60%),
      linear-gradient(160deg,#3B2A18,#6B4423 55%,#8C5A2B); */
    background-image: url('../img/bg1.jpeg'); 
    background-size: cover;
  }
  .s2{ 
    /* background:
      radial-gradient(120% 100% at 15% 0%, rgba(255,255,255,.10), transparent 60%),
      linear-gradient(160deg,#20180F,#4A3319 55%,#7A5029); */
    background-image: url('../img/bg2.jpeg'); 
    background-size: cover;
  }
  .s3{ 
    /* background:
      radial-gradient(120% 100% at 85% 100%, rgba(255,255,255,.08), transparent 60%),
      linear-gradient(200deg,#2B1E12,#5C3E20 55%,#9C6C36); */
    background-image: url('../img/bg3.jpeg'); 
    background-size: cover;
  }
  .slide::after{
    content:''; position:absolute; inset:0; opacity:.15; mix-blend-mode:overlay;
    background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 250 250'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  .shadow{position:absolute; z-index:0; background-color: rgba(82, 81, 80, 0.411);
 color: rgba(255,255,255,0.8); width: 100%; height: 100%;}
  .slide-content{ position:relative; z-index:1; color:#FBF6EC; padding:0 0 clamp(40px,7vw,88px); }
  .slide-content .eng{ font-size:clamp(.8rem,1.4vw,1rem); letter-spacing:2px; opacity:.85; margin-bottom:10px; }
  .slide-content h1{ font-size:clamp(2rem,5vw,3.4rem); font-weight:800; margin:0 0 16px; max-width:14ch; }
  .slide-content p{ max-width:44ch; opacity:.85; font-size:clamp(.95rem,1.3vw,1.05rem); margin:0 0 26px; }
  .hero-dots{ position:absolute; z-index:2; bottom:22px; left:50%; transform:translateX(-50%); display:flex; gap:8px; }
  .hero-dots button{ width:7px; height:7px; border-radius:50%; background:rgba(255,255,255,.4); border:0; cursor:pointer; padding:0; }
  .hero-dots button.active{ background:#fff; width:22px; border-radius:4px; transition:width .3s; }

  .btn{ display:inline-flex; align-items:center; gap:8px; padding:13px 28px; border-radius:6px; font-weight:700; font-size:.92rem; transition:all .25s; border:1.5px solid transparent; }
  .btn-solid{ background:var(--btn); color:var(--btn-ink); }
  .btn-solid:hover{ transform:translateY(-3px); }
  .btn-outline-light{ border-color:rgba(255,255,255,.6); color:#fff; }
  .btn-outline-light:hover{ background:#fff; color:var(--ink); }
  .btn-outline{ border-color:var(--ink); color:var(--ink); }
  .btn-outline:hover{ background:var(--ink); color:var(--bg); }

  section{ padding:clamp(56px,8vw,104px) 0; }
  .kicker{ color:var(--accent); font-weight:700; font-size:.85rem; margin-bottom:10px; }
  h2.section-title{ font-size:clamp(1.6rem,3.2vw,2.3rem); font-weight:800; margin:0 0 14px; }
  p.section-sub{ color:var(--ink-soft); max-width:600px; font-size:1.02rem; margin:0 0 44px; }

  /* product cards - portrait like faber */
  .prod-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
  @media (max-width:900px){ .prod-grid{ grid-template-columns:1fr; } }
  .prod-card{background-size: cover; position: relative; border-radius:14px; overflow:hidden; border:1px solid var(--accent); transition:transform .35s ease, box-shadow .35s ease; }
  .prod-card:hover{ transform:translateY(-6px); box-shadow:0 24px 50px var(--ring); }
  .prod-img{ aspect-ratio:4/5; position:relative; overflow:hidden; }
  .prod-img::after{ content:''; position:absolute; inset:0; opacity:.14; mix-blend-mode:overlay;
    background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 250 250'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
  /* .p1{ background:linear-gradient(155deg,#6B4423,#9C6C36); }
  .p2{ background:linear-gradient(155deg,#3B2A18,#7A5029); }
  .p3{ background:linear-gradient(155deg,#20180F,#5C3E20); } */
  .prod-body{ padding:22px 22px 26px; background:var(--bg); position:absolute; width: 100%; bottom: 0; }
  .prod-body h3{ margin:0 0 8px; font-size:1.12rem; font-weight:800; }
  .prod-body p{ margin:0 0 18px; color:var(--ink-soft); font-size:.92rem; }
  .placeholder-note{ margin-top:26px; font-size:.83rem; color:var(--ink-soft); border-right:3px solid var(--accent); padding-right:12px; }

  /* icon panels row - like faber's 3 colored link boxes */
  .panel-row{ display:grid; grid-template-columns:repeat(3,1fr); }
  .panel{ padding:44px 34px; display:flex; flex-direction:column; gap:14px; transition:transform .3s ease; border-left:1px solid var(--line); }
  .panel:last-child{ border-left:0; }
  @media (max-width:900px){ .panel-row{ grid-template-columns:1fr; } .panel{ border-left:0; border-top:1px solid var(--line); } }
  .panel:hover{ transform:translateY(-8px); }
  .panel:nth-child(1){ background:var(--bg-soft); }
  .panel:nth-child(2){ background:var(--btn); color:var(--btn-ink); }
  .panel:nth-child(2) .panel-sub{ color:color-mix(in srgb, var(--btn-ink) 70%, transparent); }
  .panel:nth-child(3){ background:var(--bg-soft); }
  .panel-icon svg{ width:30px; height:30px; stroke:var(--accent); }
  .panel:nth-child(2) .panel-icon svg{ stroke:var(--btn-ink); }
  .panel h3{ margin:0; font-size:1.05rem; font-weight:800; }
  .panel-sub{ color:var(--ink-soft); font-size:.9rem; margin:0; }

  /* blog cards */
  .blog-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
  @media (max-width:900px){ .blog-grid{ grid-template-columns:1fr; } }
  .blog-card{ border:1px solid var(--line); border-radius:14px; overflow:hidden; }
  .blog-img{ aspect-ratio:3/2; background:linear-gradient(140deg,var(--bg-soft),var(--line)); }
  .blog-body{ padding:20px 22px 24px; }
  .blog-body h3{ font-size:1rem; font-weight:700; margin:0 0 10px; line-height:1.7; }
  .blog-body a.more{ font-size:.85rem; font-weight:700; color:var(--accent); }

  /* FAQ accordion */
  .faq{ max-width:760px; }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-item summary{ list-style:none; cursor:pointer; padding:22px 0; display:flex; justify-content:space-between; align-items:center; gap:16px; font-weight:700; }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item .plus{ width:22px; height:22px; flex:none; position:relative; }
  .faq-item .plus::before,.faq-item .plus::after{ content:''; position:absolute; background:var(--ink); top:50%; left:50%; transform:translate(-50%,-50%); }
  .faq-item .plus::before{ width:14px; height:1.6px; }
  .faq-item .plus::after{ width:1.6px; height:14px; transition:transform .25s; }
  .faq-item[open] .plus::after{ transform:translate(-50%,-50%) rotate(90deg); opacity:0; }
  .faq-item p{ padding:0 0 22px; color:var(--ink-soft); margin:0; max-width:64ch; }

  /* contact */
  .contact-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:24px; }
  @media (max-width:900px){ .contact-grid{ grid-template-columns:1fr; } }
  .contact-card{ background:var(--bg-soft); border-radius:16px; padding:34px; }
  .contact-list{ list-style:none; margin:0; padding:0; display:grid; gap:20px; }
  .contact-list li{ display:flex; gap:14px; align-items:flex-start; }
  .contact-list svg{ width:20px; height:20px; flex:none; stroke:var(--accent); margin-top:3px; }
  .contact-list .label{ font-size:.8rem; color:var(--ink-soft); margin-bottom:2px; }
  .contact-list a,.contact-list .val{ font-weight:700; }
  .map-card{ background:var(--btn); color:var(--btn-ink); border-radius:16px; padding:34px; display:flex; flex-direction:column; justify-content:space-between; gap:22px; }
  .map-card p{ color:color-mix(in srgb, var(--btn-ink) 70%, transparent); font-size:.93rem; margin:0; }

  /* footer */
  footer{ background:var(--btn); color:var(--btn-ink); padding:52px 0 calc(28px + env(safe-area-inset-bottom,0px)); }
  .footer-grid{ display:flex; flex-wrap:wrap; justify-content:space-between; gap:34px; }
  .footer-col h4{ margin:0 0 18px; font-size:1rem; font-weight:700; }
  .footer-list{ list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:16px; font-size:.9rem; }
  .footer-list a{ color:color-mix(in srgb, var(--btn-ink) 75%, transparent); }
  .footer-list a:hover{ color:var(--btn-ink); }
  .social-row{ display:flex; gap:12px; }
  .social-row a{ width:36px; height:36px; border-radius:50%; border:1px solid color-mix(in srgb, var(--btn-ink) 25%, transparent); display:flex; align-items:center; justify-content:center; }
  .social-row svg{ width:15px; height:15px; stroke:var(--btn-ink); }
  .footer-bottom{ margin-top:40px; padding-top:22px; border-top:1px solid color-mix(in srgb, var(--btn-ink) 15%, transparent);
    display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between; font-size:.8rem; color:color-mix(in srgb, var(--btn-ink) 55%, transparent); }

  .reveal{ opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease; }
  .reveal.in{ opacity:1; transform:none; }
  @media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } .reveal{ opacity:1; transform:none; transition:none; } .slide{ transition:none; } }
  ::selection{ background:var(--accent); color:#fff; }