/* ============================================================
   assets/css/style.css — سیستم طراحی مشترک سایت مبین زارعی
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --night:#060714;--deep:#0d0f2b;--ink:#12163a;
  --electric:#4f46e5;--violet:#7c3aed;--neon:#06d6a0;
  --white:#f8f9ff;--muted:rgba(248,249,255,0.55);
  --card:rgba(255,255,255,0.04);--border:rgba(255,255,255,0.08);
  --radius:16px;--radius-sm:10px;
  --ff:'Vazirmatn',sans-serif;--ff-en:'Space Grotesk',sans-serif;
  --error:#f87171;--success:#06d6a0;
}

html{scroll-behavior:smooth}
body{font-family:var(--ff);background:var(--night);color:var(--white);direction:rtl;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
button{cursor:pointer;font-family:var(--ff)}

/* ── BG GLOW ── */
.bg-glow{position:fixed;width:600px;height:600px;border-radius:50%;filter:blur(120px);pointer-events:none;z-index:0}
.bg-glow-1{background:radial-gradient(circle,rgba(79,70,229,.22),transparent 70%);top:-150px;right:-150px}
.bg-glow-2{background:radial-gradient(circle,rgba(6,214,160,.1),transparent 70%);bottom:-150px;left:-150px}

/* ── NAV ── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:0 24px;transition:background .3s}
nav.scrolled{background:rgba(6,7,20,.88);backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-weight:800;font-size:1.2rem;background:linear-gradient(135deg,var(--electric),var(--neon));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:inline-flex;align-items:center}
.logo img{height:40px;width:auto}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:.88rem;font-weight:500;color:var(--muted);transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--white)}
.nav-cta{background:linear-gradient(135deg,var(--electric),var(--violet));color:#fff!important;padding:9px 22px;border-radius:100px;font-weight:600;font-size:.88rem}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.hamburger span{display:block;width:24px;height:2px;background:var(--white);border-radius:2px;transition:transform .3s,opacity .3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;position:fixed;top:72px;left:0;right:0;bottom:0;background:rgba(6,7,20,.97);backdrop-filter:blur(20px);z-index:99;flex-direction:column;align-items:center;justify-content:center;gap:32px}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:1.3rem;font-weight:600;color:var(--white)}
.back-link{display:inline-flex;align-items:center;gap:7px;font-size:.85rem;font-weight:500;color:var(--muted);transition:color .2s}
.back-link:hover{color:var(--white)}

/* ── CONTAINER ── */
.container{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.container-narrow{max-width:900px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
section{padding:100px 0}
.glow-divider{height:1px;background:linear-gradient(90deg,transparent,var(--electric),transparent);opacity:.3;margin:0}

/* ── SECTION HEADER ── */
.section-tag{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--neon);margin-bottom:12px}
.section-title{font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:800;line-height:1.25;margin-bottom:16px;letter-spacing:-.5px}
.section-title em{font-style:normal;background:linear-gradient(135deg,var(--electric),var(--neon));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-sub{font-size:1rem;color:var(--muted);max-width:520px}
.section-header{margin-bottom:64px}
.section-header-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:64px}
.view-all{display:inline-flex;align-items:center;gap:8px;font-size:.88rem;font-weight:600;color:var(--electric);transition:gap .2s;white-space:nowrap;flex-shrink:0}
.view-all:hover{gap:14px}

/* ── BUTTONS ── */
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--electric),var(--violet));color:#fff;padding:14px 32px;border-radius:100px;font-weight:700;font-size:.95rem;transition:transform .2s,box-shadow .2s;box-shadow:0 8px 30px rgba(79,70,229,.35);border:none;font-family:var(--ff)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(79,70,229,.5)}
.btn-outline{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--border);color:var(--white);padding:14px 32px;border-radius:100px;font-weight:600;font-size:.95rem;transition:border-color .2s,background .2s;background:var(--card)}
.btn-outline:hover{border-color:var(--electric);background:rgba(79,70,229,.08)}
.btn-white{background:#fff;color:var(--electric);padding:13px 30px;border-radius:100px;font-weight:700;font-size:.92rem;display:inline-flex;align-items:center;gap:8px;transition:transform .2s,box-shadow .2s;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,0,0,.25)}

/* ── CARD GRIDS (blog/shop/course shared pattern) ── */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.item-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s;display:flex;flex-direction:column}
.item-card:hover{transform:translateY(-6px);border-color:rgba(79,70,229,.4);box-shadow:0 24px 60px rgba(79,70,229,.15)}
.item-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(79,70,229,.2),rgba(6,214,160,.1));position:relative;display:flex;align-items:center;justify-content:center;font-size:2.5rem}
.item-thumb img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .4s}
.item-card:hover .item-thumb img{transform:scale(1.06)}
.item-badge{position:absolute;top:10px;right:10px;padding:3px 10px;border-radius:100px;font-size:.68rem;font-weight:700}
.badge-new{background:rgba(6,214,160,.12);color:var(--neon);border:1px solid rgba(6,214,160,.25)}
.badge-pop{background:rgba(79,70,229,.15);color:#a5b4fc;border:1px solid rgba(79,70,229,.3)}
.badge-hot{background:rgba(239,68,68,.12);color:#f87171;border:1px solid rgba(239,68,68,.25)}
.item-body{padding:18px;flex:1;display:flex;flex-direction:column}
.item-cat{font-size:.7rem;font-weight:700;color:var(--neon);text-transform:uppercase;letter-spacing:1px;margin-bottom:6px}
.item-name{font-size:.95rem;font-weight:700;margin-bottom:8px;line-height:1.4}
.item-desc{font-size:.8rem;color:var(--muted);line-height:1.7;margin-bottom:14px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.item-footer{display:flex;align-items:center;justify-content:space-between;margin-top:auto}
.item-price{font-size:.95rem;font-weight:800;background:linear-gradient(135deg,var(--electric),var(--neon));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.item-cta{font-size:.75rem;font-weight:600;color:var(--electric);display:inline-flex;align-items:center;gap:4px}
.empty-state{grid-column:1/-1;text-align:center;padding:80px 20px;color:var(--muted)}
.empty-state svg{margin:0 auto 16px;opacity:.3}

/* ── FILTER ── */
.filter-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.filter-btn{padding:8px 20px;border-radius:100px;font-size:.83rem;font-weight:600;border:1.5px solid var(--border);background:var(--card);color:var(--muted);cursor:pointer;font-family:var(--ff);transition:all .2s;text-decoration:none}
.filter-btn:hover,.filter-btn.active{background:linear-gradient(135deg,var(--electric),var(--violet));border-color:transparent;color:#fff;box-shadow:0 6px 20px rgba(79,70,229,.35)}

/* ── BREADCRUMB ── */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.78rem;color:var(--muted);margin-bottom:28px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted);transition:color .2s}
.breadcrumb a:hover{color:var(--white)}
.breadcrumb span{color:var(--white)}

/* ── FOOTER ── */
footer{background:var(--ink);border-top:1px solid var(--border);padding:40px 0 24px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:.8rem;color:var(--muted)}
.footer-bottom a{color:var(--muted);font-size:.8rem;transition:color .2s}
.footer-bottom a:hover{color:var(--white)}

/* ── REVEAL ANIMATION ── */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1)}
.reveal.visible{opacity:1;transform:none}
.reveal-delay-1{transition-delay:.1s}
.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}

@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.skeleton{background:linear-gradient(90deg,var(--card) 25%,rgba(255,255,255,.06) 50%,var(--card) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius)}

/* ── RESPONSIVE ── */
@media(max-width:1024px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){
  section{padding:70px 0}
  .nav-links{display:none}
  .hamburger{display:flex}
  .section-header-row{flex-direction:column;align-items:flex-start}
}
@media(max-width:640px){.card-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}