:root{--bg: #f4f6fa;--card: #ffffff;--text: #1f2937;--muted: #6b7280;--border: #e5e7eb;--primary: #4f46e5;--primary-dark: #4338ca;--success: #059669;--warn: #d97706;--danger: #dc2626;--radius: 10px}*{box-sizing:border-box}body{margin:0;font-family:Vazirmatn,Tahoma,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.7}h1{font-size:22px;margin:0 0 12px}h2,h3{margin:0 0 12px}h3{font-size:16px}a{color:var(--primary)}.muted{color:var(--muted)}.center{text-align:center}.nowrap{white-space:nowrap}.ltr,.ltr-cell{direction:ltr;text-align:left}.ltr-cell{font-family:monospace}.text-warn{color:var(--warn)}.text-danger{color:var(--danger)!important}.topbar{display:flex;align-items:center;gap:20px;background:var(--card);border-bottom:1px solid var(--border);padding:10px 24px;position:sticky;top:0;z-index:10;flex-wrap:wrap}.brand{font-weight:700;font-size:16px}.nav{display:flex;gap:4px;flex:1;flex-wrap:wrap}.nav a{padding:6px 12px;border-radius:8px;text-decoration:none;color:var(--text)}.nav a:hover{background:var(--bg)}.nav a.active{background:#eef2ff;color:var(--primary);font-weight:500}.userbox{display:flex;align-items:center;gap:8px}.menu-toggle{display:none}.container{max-width:1200px;margin:0 auto;padding:24px}.center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:8px}.page-head h1{margin:0}.page-actions{display:flex;gap:8px;flex-wrap:wrap}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px}.login-card{width:100%;max-width:360px;padding:28px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:16px}.stat{background:var(--card);border:1px solid 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