/* =========================================================
   صنعت نوین معرق چرم
   هویت بصری موزه‌ای · چرم تیره · طلای کهنه · هندسه ایرانی
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --leather-black: #0e0805;
  --leather-dark: #1a100a;
  --leather: #2e1c12;
  --leather-mid: #4a2f1c;
  --leather-warm: #6b4428;
  --gold: #c9a227;
  --gold-bright: #e8c547;
  --gold-soft: #f0d98a;
  --gold-muted: #a88b2e;
  --cream: #f8f1e6;
  --cream-warm: #f3e9d8;
  --paper: #faf6ef;
  --ink: #140e09;
  --muted: #6a5644;
  --surface: #fffdf9;
  --border: #dfd0b6;
  --border-gold: rgba(201,162,39,.4);
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 16px 48px rgba(14,8,5,.14);
  --shadow-lg: 0 28px 70px rgba(14,8,5,.22);
  --shadow-gold: 0 10px 40px rgba(201,162,39,.28);
  --font: 'Vazirmatn', system-ui, sans-serif;
  --ease: cubic-bezier(.22,1,.36,1);
  --t: .45s var(--ease);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  direction:rtl;
  font-family:var(--font);
  background:var(--paper);
  color:var(--ink);
  line-height:1.9;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* بافت کاغذ کهنه + هاله طلایی */
body::before{
  content:"";
  position:fixed;inset:0;pointer-events:none;z-index:-1;
  background:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(201,162,39,.06), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 100%, rgba(74,47,28,.05), transparent 50%),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

.container{width:min(1120px,92%);margin-inline:auto}

/* ========== HEADER ========== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(250,246,239,.9);
  backdrop-filter:blur(20px) saturate(1.5);
  -webkit-backdrop-filter:blur(20px) saturate(1.5);
  border-bottom:1px solid var(--border);
  transition:var(--t);
}
.site-header.scrolled{
  background:rgba(250,246,239,.97);
  box-shadow:0 10px 40px rgba(14,8,5,.1);
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
  gap:1rem;padding:1rem 0;flex-wrap:wrap;
}
.logo{
  text-decoration:none;color:var(--leather-dark);
  display:flex;align-items:center;gap:.55rem;
}
.logo strong{
  font-size:1.08rem;font-weight:900;letter-spacing:-.02em;
  background:linear-gradient(135deg,var(--leather-dark),var(--leather-mid));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.logo::before{
  content:"◆";color:var(--gold);font-size:.8rem;
  filter:drop-shadow(0 0 6px rgba(201,162,39,.5));
}
.main-nav{display:flex;flex-wrap:wrap;gap:.2rem;align-items:center}
.main-nav a{
  text-decoration:none;color:var(--muted);
  padding:.42rem .8rem;border-radius:999px;
  font-size:.9rem;font-weight:500;transition:var(--t);
}
.main-nav a:hover{color:var(--leather-dark);background:rgba(201,162,39,.12)}
.main-nav a.active{
  color:#fff;
  background:linear-gradient(135deg,var(--leather-dark),var(--leather-mid));
  box-shadow:0 4px 16px rgba(14,8,5,.28);
}

/* ========== HERO — سینمایی ========== */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;align-items:center;
  color:#fff9ed;
  background:
    linear-gradient(125deg,
      rgba(10,6,3,.94) 0%,
      rgba(30,18,10,.82) 35%,
      rgba(46,28,18,.7) 60%,
      rgba(14,8,5,.9) 100%),
    radial-gradient(ellipse 70% 60% at 75% 25%, rgba(201,162,39,.18), transparent 55%);
  overflow:hidden;
}
/* الگوی هندسی اسلیمی ظریف */
.hero::before{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(201,162,39,.07) 0%, transparent 25%),
    repeating-linear-gradient(60deg, transparent, transparent 35px, rgba(201,162,39,.02) 35px, rgba(201,162,39,.02) 70px),
    repeating-linear-gradient(-60deg, transparent, transparent 35px, rgba(201,162,39,.015) 35px, rgba(201,162,39,.015) 70px);
  opacity:.9;
}
/* قاب طلایی گوشه‌ها */
.hero::after{
  content:"";
  position:absolute;inset:24px;
  border:1px solid rgba(201,162,39,.2);
  border-radius:4px;
  pointer-events:none;
  box-shadow:inset 0 0 60px rgba(201,162,39,.04);
}
.hero-inner{
  position:relative;z-index:2;
  max-width:720px;
  padding:6rem 0 5rem;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.82rem;font-weight:600;letter-spacing:.08em;
  color:var(--gold-soft);text-transform:uppercase;
  margin-bottom:1.4rem;
  opacity:.95;
}
.hero-eyebrow::before,
.hero-eyebrow::after{
  content:"";width:28px;height:1px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.hero-eyebrow::after{background:linear-gradient(270deg,var(--gold),transparent)}
.hero h1{
  font-size:clamp(2.4rem,6vw,4.2rem);
  font-weight:900;line-height:1.2;
  letter-spacing:-.035em;
  text-shadow:0 6px 40px rgba(0,0,0,.5);
  margin-bottom:1.3rem;
  background:linear-gradient(180deg,#fff9ed 30%, #e8d5a3 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero .lead{
  font-size:1.18rem;font-weight:400;
  opacity:.9;max-width:560px;
  margin-bottom:2rem;line-height:1.95;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;
  font-size:.86rem;opacity:.8;margin-bottom:2.2rem;
}
.hero-meta span{display:inline-flex;align-items:center;gap:.4rem}
.hero-meta span::before{content:"◆";color:var(--gold);font-size:.5rem}

/* دکمه‌ها */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.9rem 1.85rem;border-radius:999px;
  text-decoration:none;font-weight:700;font-size:.95rem;
  transition:var(--t);border:none;cursor:pointer;position:relative;overflow:hidden;
}
.btn.primary{
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  color:var(--leather-black);
  box-shadow:var(--shadow-gold);
}
.btn.primary:hover{
  transform:translateY(-4px);
  box-shadow:0 16px 45px rgba(201,162,39,.45);
  background:linear-gradient(135deg,#f5e6b0,var(--gold-bright));
}
.btn.outline{
  background:transparent;
  border:1.5px solid rgba(255,249,237,.4);
  color:#fff9ed;
}
.btn.outline:hover{
  background:rgba(255,249,237,.1);
  border-color:#fff9ed;
  transform:translateY(-4px);
}

/* ========== SECTIONS ========== */
.section{padding:6rem 0;position:relative}
.section.alt{
  background:
    linear-gradient(180deg,var(--cream-warm),var(--paper));
  position:relative;
}
.section.alt::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  opacity:.35;
}
.section-title{
  font-size:clamp(1.75rem,3.8vw,2.5rem);
  font-weight:900;color:var(--leather-dark);
  margin-bottom:2.6rem;letter-spacing:-.025em;
  position:relative;
}
.section-title::after{
  content:"";
  display:block;width:80px;height:3px;margin-top:1rem;
  background:linear-gradient(90deg,var(--gold),var(--gold-muted),transparent);
  border-radius:3px;
}

/* ========== CARDS ========== */
.grid-3,.grid-2{display:grid;gap:1.7rem}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}

.card,.content-block{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:2.1rem 1.9rem;
  box-shadow:var(--shadow);
  transition:var(--t);
  position:relative;overflow:hidden;
}
/* قاب طلایی گوشه کارت */
.card::after,.content-block::after{
  content:"";
  position:absolute;top:12px;left:12px;
  width:18px;height:18px;
  border-top:1.5px solid var(--gold);
  border-left:1.5px solid var(--gold);
  opacity:0;transition:var(--t);
}
.card::before,.content-block::before{
  content:"";
  position:absolute;top:0;right:0;
  width:4px;height:100%;
  background:linear-gradient(180deg,var(--gold),transparent 70%);
  opacity:0;transition:var(--t);
}
.card:hover,.content-block:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:var(--border-gold);
}
.card:hover::before,.content-block:hover::before,
.card:hover::after,.content-block:hover::after{opacity:1}

.card h3,.content-block h2{
  color:var(--leather-mid);
  font-size:1.28rem;font-weight:800;
  margin-bottom:.9rem;letter-spacing:-.01em;
}
.card p,.content-block p{color:var(--muted);font-size:.98rem}
.content-block+.content-block{margin-top:1.5rem}
.content-block ul{margin:1rem 0 0 1.2rem;color:var(--muted)}
.content-block li{margin-bottom:.45rem}

/* ========== PAGE HERO داخلی ========== */
.page-hero{
  background:
    linear-gradient(145deg,#1a100a 0%, #2e1c12 40%, #3d2818 100%);
  color:#fff9ed;
  padding:4.5rem 0 3.5rem;
  position:relative;overflow:hidden;
  text-align:center;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(201,162,39,.15), transparent 55%),
    repeating-linear-gradient(45deg, transparent, transparent 40px, rgba(201,162,39,.02) 40px, rgba(201,162,39,.02) 80px);
}
.page-hero h1{
  position:relative;
  font-size:clamp(1.85rem,4.5vw,2.7rem);
  font-weight:900;letter-spacing:-.025em;
  background:linear-gradient(180deg,#fff9ed,#e8d5a3);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.page-hero p{
  position:relative;
  color:rgba(232,213,163,.85);
  margin-top:.7rem;font-size:1.05rem;
}
.page-hero .hero-line{
  width:60px;height:2.5px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  margin:1.3rem auto 0;border-radius:2px;position:relative;
}

/* ========== FOOTER ========== */
.site-footer{
  background:linear-gradient(180deg,var(--leather) 0%, var(--leather-black) 100%);
  color:#e0d0b8;
  padding:4rem 0 2.8rem;
  text-align:center;position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--gold),var(--gold-bright),var(--gold),transparent);
}
.site-footer p{margin:.4rem 0;font-size:.95rem;opacity:.88}
.site-footer p:first-child{
  font-weight:700;color:var(--gold-soft);font-size:1.08rem;
  letter-spacing:.02em;
}

/* ========== UTILITIES ========== */
.fade-up{animation:fadeUp 1s var(--ease) both}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(32px)}
  to{opacity:1;transform:translateY(0)}
}
.reveal{
  opacity:0;transform:translateY(28px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.visible{opacity:1;transform:translateY(0)}

.nav-toggle{
  display:none;background:none;
  border:1.5px solid var(--border);border-radius:10px;
  padding:.45rem .7rem;cursor:pointer;
  color:var(--leather-dark);font-size:1.2rem;line-height:1;
}

@media(max-width:900px){
  .nav-toggle{display:block}
  .main-nav{
    display:none;width:100%;flex-direction:column;
    gap:.25rem;padding:.8rem 0 .3rem;
    border-top:1px solid var(--border);margin-top:.5rem;
  }
  .main-nav.open{display:flex}
  .main-nav a{width:100%;text-align:right;padding:.65rem 1rem}
  .hero{min-height:80vh}
  .hero::after{inset:14px}
  .hero-inner{padding:4.5rem 0 3.5rem}
}
@media(max-width:600px){
  .hero h1{font-size:2.1rem}
  .hero .lead{font-size:1.05rem}
  .section{padding:4rem 0}
  .btn.outline{margin-top:.5rem}
}