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20px;border-radius:8px;font-weight:600;z-index:1001;animation:slideIn-7a91523c .3s ease-out}.notification.success[data-v-7a91523c]{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}.notification.error[data-v-7a91523c]{background:#fee2e2;color:#dc2626;border:1px solid #fecaca}@keyframes slideIn-7a91523c{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@media (max-width: 768px){.promocode-management[data-v-7a91523c]{padding:16px}.stats-grid[data-v-7a91523c]{grid-template-columns:repeat(2,1fr)}.controls-section[data-v-7a91523c]{flex-direction:column;align-items:stretch}.controls-left[data-v-7a91523c]{width:100%}.search-box[data-v-7a91523c]{min-width:auto}.modal-content[data-v-7a91523c]{width:95%;padding:16px}.data-table[data-v-7a91523c]{font-size:.9rem}.data-table th[data-v-7a91523c],.data-table td[data-v-7a91523c]{padding:12px 8px}}:root{--primary: #4f46e5;--primary-hover: #4338ca;--secondary: #64748b;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--info: #3b82f6;--bg-body: #f3f4f6;--bg-card: #ffffff;--bg-sidebar: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);--text-main: #111827;--text-muted: #6b7280;--text-light: #f9fafb;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-glow: 0 0 15px rgba(79, 70, 229, .3)}html,body{margin:0;padding:0;font-family:Inter,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg-body);color:var(--text-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}.admin-panel{display:flex;height:100vh;width:100vw;overflow:hidden}.content{flex:1;background-color:var(--bg-body);overflow-y:auto;padding:0;position:relative}.sidebar{width:280px;background:var(--bg-sidebar)!important;color:#fff;box-shadow:4px 0 24px #00000026;z-index:10;display:flex;flex-direction:column}.sidebar h2{font-family:Unbounded,sans-serif;font-size:20px;letter-spacing:-.5px;color:#fff;padding:24px;margin:0;border-bottom:1px solid rgba(255,255,255,.1);background:#0003}.sidebar nav ul{padding:16px;display:flex;flex-direction:column;gap:8px}.sidebar nav li{padding:12px 16px;border-radius:var(--radius-sm);cursor:pointer;transition:all .2s ease;color:#ffffffb3;font-weight:500;display:flex;align-items:center;gap:12px}.sidebar nav li:hover{background:#ffffff1a;color:#fff;transform:translate(4px)}.sidebar nav li.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px #4f46e566}.sidebar nav li .icon{font-size:18px;width:24px;text-align:center}button{font-family:inherit;cursor:pointer;border:none;outline:none}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:var(--radius-sm);font-weight:600;font-size:14px;transition:all .2s ease;gap:8px}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 6px #4f46e533}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 12px #4f46e54d}.btn-secondary{background:#fff;color:var(--text-main);border:1px solid #e5e7eb}.btn-secondary:hover{background:#f9fafb;border-color:#d1d5db}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}input,select,textarea{width:100%;padding:12px 16px;border:1px solid #e5e7eb;border-radius:var(--radius-sm);font-size:14px;transition:all .2s;background:#fff;color:var(--text-main)}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a;outline:none}label{display:block;margin-bottom:6px;font-size:13px;font-weight:600;color:var(--text-muted)}.card{background:#fff;border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-md);border:1px solid rgba(0,0,0,.02)}.section-header{margin-bottom:32px}.section-header h1{font-size:28px;font-weight:800;color:var(--text-main);margin:0 0 8px;letter-spacing:-.5px}.section-header p{color:var(--text-muted);font-size:16px;margin:0}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.text-center{text-align:center}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.flex{display:flex}.gap-4{gap:16px}.items-center{align-items:center}.justify-between{justify-content:space-between}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .4s ease-out forwards}@media (max-width: 768px){.admin-panel{flex-direction:column}.sidebar{width:100%;height:auto;flex-direction:row;overflow-x:auto;padding:0}.sidebar h2{display:none}.sidebar nav ul{flex-direction:row;padding:10px;margin:0}.sidebar nav li{padding:8px 12px;white-space:nowrap}.content{height:calc(100vh - 60px)}}.admin-panel{display:flex;height:100vh;overflow:hidden;background-color:#f8fafc}.sidebar{width:280px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;flex-shrink:0;display:flex;flex-direction:column;height:100vh;overflow:hidden;box-shadow:2px 0 10px #0000001a}.sidebar-header{padding:1.5rem;border-bottom:1px solid rgba(255,255,255,.1);flex-shrink:0}.sidebar-header h2{margin:0;font-size:1.5rem;font-weight:600;text-align:center}.sidebar-nav{flex:1;overflow-y:auto;overflow-x:hidden;padding:1rem 0}.sidebar-nav::-webkit-scrollbar{width:6px}.sidebar-nav::-webkit-scrollbar-track{background:#ffffff1a}.sidebar-nav::-webkit-scrollbar-thumb{background:#ffffff4d;border-radius:3px}.sidebar-nav::-webkit-scrollbar-thumb:hover{background:#ffffff80}.sidebar-nav ul{list-style:none;padding:0;margin:0}.sidebar-nav ul li{padding:.75rem 1.5rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.75rem;border-left:3px solid transparent}.sidebar-nav ul li:hover{background:#ffffff1a;border-left-color:#ffffff80}.sidebar-nav ul li.active{background:#fff3;border-left-color:#fff;font-weight:600}.sidebar-nav ul li .icon{font-size:1.2rem;min-width:24px;text-align:center}.sidebar-nav ul li span{font-size:.95rem;white-space:nowrap}.content{flex:1;display:flex;flex-direction:column;height:100vh;overflow:hidden}.content-section{flex:1;overflow-y:auto;overflow-x:hidden;padding:2rem;background-color:#f8fafc}.content-section::-webkit-scrollbar{width:8px}.content-section::-webkit-scrollbar-track{background:#f1f5f9}.content-section::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}.content-section::-webkit-scrollbar-thumb:hover{background:#94a3b8}.section{max-width:1200px;margin:0 auto;background:#fff;border-radius:12px;box-shadow:0 4px 6px #0000000d;overflow:hidden}.section-header{padding:2rem 2rem 1rem;background:linear-gradient(135deg,#f8fafc,#e2e8f0);border-bottom:1px solid #e2e8f0}.section-header h1{margin:0 0 .5rem;font-size:2rem;font-weight:700;color:#1e293b}.section-header p{margin:0;font-size:1rem;color:#64748b}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;background-color:#f8fafc}.loading-spinner{width:40px;height:40px;border:4px solid #e2e8f0;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-container p{color:#64748b;font-size:1.1rem;margin:0}.toast{position:fixed;top:20px;right:20px;padding:1rem 1.5rem;border-radius:8px;color:#fff;font-weight:500;box-shadow:0 10px 25px #0000001a;z-index:1000;animation:slideIn .3s ease-out;max-width:400px;word-wrap:break-word}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.toast.success{background:linear-gradient(135deg,#10b981,#059669)}.toast.error{background:linear-gradient(135deg,#ef4444,#dc2626)}.sidebar-nav ul li.active .icon{transform:scale(1.1)}.sidebar-nav ul li:hover .icon{transform:scale(1.05)}.toast.course-success{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none}.toast.course-error{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none}.toast.promocode-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none}.toast.promocode-error{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none}.sidebar-nav ul li:nth-child(8) .icon{background:linear-gradient(135deg,#8b5cf6,#a855f7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-nav ul li:nth-child(8).active{background:linear-gradient(135deg,#8b5cf6,#a855f7)}.sidebar-nav ul li:nth-child(8):hover{background:linear-gradient(135deg,#8b5cf61a,#a855f71a)}.sidebar-nav ul li:nth-child(9) .icon{background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-nav ul li:nth-child(9).active{background:linear-gradient(135deg,#667eea,#764ba2)}.sidebar-nav ul li:nth-child(9):hover{background:linear-gradient(135deg,#667eea1a,#764ba21a)}.toast.lesson-success{background:linear-gradient(135deg,#8b5cf6,#a855f7);color:#fff;border:none}.toast.lesson-error{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none}@media (max-width: 768px){.admin-panel{flex-direction:column;height:100vh}.sidebar{width:100%;height:auto;max-height:200px}.sidebar-nav{max-height:150px}.content{height:calc(100vh - 200px)}.content-section{padding:1rem}.section-header{padding:1.5rem 1.5rem .75rem}.section-header h1{font-size:1.5rem}}@media (max-width: 480px){.sidebar-nav ul li{padding:.5rem 1rem}.sidebar-nav ul li span{font-size:.875rem}.content-section{padding:.75rem}.section-header{padding:1rem}.toast{top:10px;right:10px;left:10px;max-width:none}}.dashboard[data-v-e97a7cb9]{padding:20px}.stats[data-v-e97a7cb9]{display:flex;gap:20px}.stat-card[data-v-e97a7cb9]{background:#3498db;color:#fff;padding:20px;border-radius:5px;width:150px;text-align:center}.stat-card h3[data-v-e97a7cb9]{margin-bottom:10px}