@import "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap";
@font-face{font-family:IRANSans;font-style:normal;font-weight:100;font-display:swap;src:url(/fonts/IRANSansWeb_UltraLight.woff2)format("woff2"),url(/fonts/IRANSansWeb_UltraLight.woff)format("woff")}@font-face{font-family:IRANSans;font-style:normal;font-weight:300;font-display:swap;src:url(/fonts/IRANSansWeb_Light.woff2)format("woff2"),url(/fonts/IRANSansWeb_Light.woff)format("woff")}@font-face{font-family:IRANSans;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/IRANSansWeb.woff2)format("woff2"),url(/fonts/IRANSansWeb.woff)format("woff")}@font-face{font-family:IRANSans;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/IRANSansWeb_Medium.woff2)format("woff2"),url(/fonts/IRANSansWeb_Medium.woff)format("woff")}@font-face{font-family:IRANSans;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/IRANSansWeb_Bold.woff2)format("woff2"),url(/fonts/IRANSansWeb_Bold.woff)format("woff")}@font-face{font-family:IRANSans;font-style:normal;font-weight:900;font-display:swap;src:url(/fonts/IRANSansWeb_Black.woff2)format("woff2"),url(/fonts/IRANSansWeb_Black.woff)format("woff")}:root{--font-sans:"IRANSans", system-ui, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", ui-monospace, monospace;--color-brand-50:#f0fdfa;--color-brand-100:#ccfbf1;--color-brand-200:#99f6e4;--color-brand-300:#5eead4;--color-brand-400:#2dd4bf;--color-brand-500:#14b8a6;--color-brand-600:#0d9488;--color-brand-700:#0f766e;--color-brand-800:#115e59;--color-brand-900:#134e4a;--color-neutral-50:#f8fafc;--color-neutral-100:#f1f5f9;--color-neutral-200:#e2e8f0;--color-neutral-300:#cbd5e1;--color-neutral-400:#94a3b8;--color-neutral-500:#64748b;--color-neutral-600:#475569;--color-neutral-700:#334155;--color-neutral-800:#1e293b;--color-neutral-900:#0f172a;--color-success:#16a34a;--color-warning:#d97706;--color-danger:#dc2626;--color-info:#2563eb;--color-price:#0d9488;--color-sale:#dc2626;--bg:#f8fafc;--surface:#fff;--surface-2:#f1f5f9;--border:#e2e8f0;--text:#0f172a;--text-muted:#64748b;--text-inverse:#fff;--brand:#0d9488;--brand-hover:#0f766e;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-xs:0 1px 2px 0 #0000000d;--shadow-sm:0 1px 3px 0 #00000014, 0 1px 2px -1px #0000000f;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000012, 0 4px 6px -4px #0000000d;--shadow-xl:0 20px 25px -5px #00000012, 0 8px 10px -6px #0000000a}.dark{--bg:#0f172a;--surface:#1e293b;--surface-2:#334155;--border:#334155;--text:#f1f5f9;--text-muted:#94a3b8;--text-inverse:#0f172a}*{box-sizing:border-box}html{font-family:var(--font-sans);background:var(--bg);color:var(--text);direction:rtl}body{-webkit-font-smoothing:antialiased;background:var(--bg);margin:0}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}button,input,select,textarea{font-family:var(--font-sans)}input,select,textarea{color:var(--text)}input::placeholder,textarea::placeholder{color:var(--text-muted);opacity:1}.text-code,.text-code *,pre,code,.rte-content pre,.rte-content code{font-family:var(--font-mono)}.text-display{letter-spacing:-.02em;font-size:clamp(2.25rem,5vw,3.75rem);font-weight:900;line-height:1.15}.text-h1{font-size:clamp(1.875rem,4vw,3rem);font-weight:700;line-height:1.2}.text-h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;line-height:1.25}.text-h3{font-size:clamp(1.25rem,2.5vw,1.75rem);font-weight:600;line-height:1.3}.text-h4{font-size:1.25rem;font-weight:600;line-height:1.4}.text-body-lg{font-size:1.125rem;line-height:1.8}.text-body{font-size:1rem;line-height:1.8}.text-small{font-size:.875rem;line-height:1.6}.text-caption{font-size:.75rem;line-height:1.5}.text-code{font-family:var(--font-mono);text-align:left;direction:ltr;font-size:.875rem}.ltr-inline{direction:ltr;unicode-bidi:isolate;display:inline-block}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.grid-cards{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.25rem;display:grid}.article{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);margin:1.5rem 0;padding:2rem}.article h1{margin-top:0}.article .meta{color:var(--text-muted);margin-bottom:1.25rem;font-size:.85rem}.article .content{color:var(--text);font-size:1.0625rem;line-height:1.9}.article .content img{border-radius:var(--radius-lg);margin:1rem 0}.article .content pre,.article .content code{font-family:var(--font-mono);direction:ltr}.article .content pre{background:var(--color-neutral-900);color:#e2e8f0;border-radius:var(--radius-md);padding:1rem;overflow:auto}.article .content a{color:var(--brand)}.article .content h2,.article .content h3{margin-top:1.75rem}.badge{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-full);color:var(--text-muted);margin-inline-start:6px;padding:3px 12px;font-size:.75rem;display:inline-block}.buy{background:var(--brand);color:#fff;border-radius:var(--radius-md);padding:12px 24px;font-weight:700;display:inline-block}.buy:hover{background:var(--brand-hover)}.hoverable{transition:box-shadow .2s,transform .2s,border-color .2s,background .2s}.hoverable:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:2px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.staging-flag{inset-inline-end:10px;color:#fbbf24;opacity:.85;z-index:60;background:#111827;border-radius:8px;padding:4px 10px;font-size:11px;position:fixed;bottom:10px}.course-layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:2rem;display:grid}@media (max-width:900px){.course-layout{grid-template-columns:1fr}.course-layout aside{position:static!important}}@media (max-width:768px){.hidden-mobile{display:none!important}.show-mobile{display:flex!important}}@media (min-width:769px){.show-mobile{display:none!important}}.rte{border:1px solid var(--border);background:var(--surface);border-radius:10px;margin-top:6px;overflow:hidden}.rte-toolbar{background:var(--surface-2);border-bottom:1px solid var(--border);z-index:2;flex-wrap:wrap;align-items:center;gap:4px;padding:8px;display:flex;position:sticky;top:0}.rte-btn{border:1px solid var(--border);background:var(--surface);min-width:32px;height:32px;color:var(--text);cursor:pointer;font-size:.85rem;font-family:var(--font-sans);border-radius:7px;justify-content:center;align-items:center;padding:0 8px;line-height:1;display:inline-flex}.rte-btn:hover{background:var(--color-brand-50);border-color:var(--brand)}.rte-btn.active{background:var(--brand);color:#fff;border-color:var(--brand)}.rte-sep{background:var(--border);width:1px;height:22px;margin:0 4px}.rte-content{outline:none;min-height:320px;padding:16px 18px;font-size:1.0625rem;line-height:1.9}.rte-content:focus{outline:none}.rte-content>:first-child{margin-top:0}.rte-content h2{margin:1.5rem 0 .75rem;font-size:1.6rem;font-weight:700}.rte-content h3{margin:1.25rem 0 .5rem;font-size:1.35rem;font-weight:700}.rte-content h4{margin:1rem 0 .5rem;font-size:1.15rem;font-weight:600}.rte-content p{margin:.6rem 0}.rte-content a{color:var(--brand);text-decoration:underline}.rte-content ul,.rte-content ol{margin:.6rem 0;padding-inline-start:1.5rem}.rte-content blockquote{border-inline-start:3px solid var(--brand);color:var(--text-muted);margin:1rem 0;padding-inline-start:1rem}.rte-content pre{background:var(--color-neutral-900);color:#e2e8f0;text-align:left;font-family:var(--font-mono);direction:ltr;border-radius:8px;padding:1rem;overflow:auto}.rte-content img{border-radius:12px;max-width:100%;height:auto;margin:1rem 0}.rte-content table{border-collapse:collapse;width:100%;margin:1rem 0}.rte-content table td,.rte-content table th{border:1px solid var(--border);padding:8px 10px}.rte-content table th{background:var(--surface-2);font-weight:700}.rte-content p.is-editor-empty:first-child:before{content:"محتوا را اینجا بنویسید…";color:var(--text-muted);float:right;pointer-events:none;height:0}@media print{header,footer,.staging-flag,.no-print,.account-nav{display:none!important}body,html{background:#fff!important}main{padding:0!important}.invoice-sheet{box-shadow:none!important;border:none!important;max-width:100%!important;margin:0!important}}.aparat-embed{aspect-ratio:16/9;background:#000;border-radius:12px;width:100%;max-width:720px;margin:1.25rem auto;position:relative;overflow:hidden}.aparat-embed iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.lesson-lock{color:var(--text-muted);background:var(--surface-2);border:1px solid var(--border);border-radius:999px;align-items:center;gap:6px;margin:2px 0;padding:3px 12px;font-size:.8rem;display:inline-flex}.content p{margin:.7rem 0}.social-grid{grid-template-columns:1fr 1fr;gap:1.25rem;max-width:960px;margin:0 auto;display:grid}@media (max-width:760px){.social-grid{grid-template-columns:1fr}}@keyframes blink{50%{opacity:0}}.hero-grid{grid-template-columns:1fr auto;align-items:center;gap:2.5rem;display:grid}@media (max-width:860px){.hero-grid{text-align:center;grid-template-columns:1fr;gap:2rem}.hero-text{margin:0 auto;max-width:100%!important}.hero-sub{max-width:100%!important;margin-inline:auto!important}.hero-cta{justify-content:center}.hero-illus{justify-content:center;display:flex!important}.hero-illus>div{max-width:420px;width:100%!important}}