@import"https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap";:root{--primary: #6366f1;--primary-light: #818cf8;--primary-dark: #4f46e5;--secondary: #0ea5e9;--secondary-light: #38bdf8;--secondary-dark: #0284c7;--accent: #f59e0b;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--info: #3b82f6;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--bg-primary: #ffffff;--bg-secondary: #f6f7fb;--bg-light: var(--gray-100);--surface-1: #ffffff;--surface-2: var(--gray-50);--surface-3: var(--gray-100);--border-light: var(--gray-200);--border-medium: var(--gray-300);--border-strong: var(--gray-400);--text-primary: var(--gray-900);--text-secondary: var(--gray-700);--text-muted: var(--gray-600);--text-light: #ffffff;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--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-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--spacing-1: 4px;--spacing-2: 8px;--spacing-3: 12px;--spacing-4: 16px;--spacing-5: 20px;--spacing-6: 24px;--spacing-8: 32px;--spacing-10: 40px;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--font-family: "Manrope", "Segoe UI", "Helvetica Neue", Arial, sans-serif;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 30px;--font-size-4xl: 36px;--transition: .2s cubic-bezier(.4, 0, .2, 1);--focus-ring: 0 0 0 3px rgba(99, 102, 241, .2);--page-max-width: 1280px;--page-padding: 32px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);font-size:var(--font-size-base);color:var(--text-primary);background:var(--bg-secondary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;width:100%}h1,h2,h3,h4,h5,h6{color:var(--text-primary);line-height:1.3;margin:0;font-weight:600}h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-3xl)}h3{font-size:var(--font-size-2xl)}h4{font-size:var(--font-size-xl)}h5{font-size:var(--font-size-lg)}h6{font-size:var(--font-size-base)}p{margin:0;color:var(--text-secondary)}a{color:var(--primary);text-decoration:none;transition:color var(--transition)}input,select,textarea{width:100%;background:var(--surface-1);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:var(--spacing-3) var(--spacing-4);color:var(--text-primary);transition:all var(--transition)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:var(--focus-ring)}button{border:none;background:none;cursor:pointer;transition:all var(--transition);color:inherit}button:focus{color:inherit}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-2);padding:10px var(--spacing-5);border-radius:var(--radius-lg);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;border:none;transition:all .2s cubic-bezier(.4,0,.2,1);min-height:40px;letter-spacing:.3px;position:relative;overflow:hidden}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.btn-primary{background:var(--primary);color:var(--text-light)}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-secondary{background:var(--secondary);color:var(--text-light)}.btn-secondary:hover:not(:disabled){background:var(--secondary-dark)}.btn-success{background:var(--success);color:var(--text-light)}.btn-success:hover:not(:disabled){opacity:.9}.btn-danger{background:var(--error);color:var(--text-light)}.btn-danger:hover:not(:disabled){opacity:.9}.btn-outline{background:transparent;border:1px solid var(--border-medium);color:var(--text-primary)}.btn-outline:hover:not(:disabled){border-color:var(--primary);color:var(--primary);background:#6366f10d}.card{background:var(--surface-1);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:var(--spacing-6);box-shadow:var(--shadow-sm)}.badge{display:inline-flex;align-items:center;padding:var(--spacing-1) var(--spacing-3);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:600;background:var(--gray-100);color:var(--gray-700)}.badge-primary{background:#6366f11a;color:var(--primary-dark)}.badge-success{background:#10b9811a;color:#059669}.badge-warning{background:#f59e0b1a;color:#d97706}.badge-error{background:#ef44441a;color:#dc2626}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--spacing-4)}.modal-container{background:var(--surface-1);border-radius:var(--radius-lg);width:min(90vw,600px);max-height:90vh;overflow:hidden;box-shadow:var(--shadow-xl)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-5) var(--spacing-6);border-bottom:1px solid var(--border-light)}.modal-title{font-size:var(--font-size-lg);font-weight:600;color:var(--text-primary);margin:0}.modal-body{padding:var(--spacing-6);overflow-y:auto;max-height:calc(90vh - 140px)}.modal-footer{display:flex;justify-content:flex-end;gap:var(--spacing-3);padding:var(--spacing-5) var(--spacing-6);border-top:1px solid var(--border-light)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:var(--spacing-3) var(--spacing-4);border-bottom:1px solid var(--border-light);font-size:var(--font-size-sm)}th{color:var(--text-secondary);font-weight:600;background:var(--surface-2)}.text-center{text-align:center}.text-right{text-align:right}.text-left{text-align:left}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}code{font-family:Fira Code,Consolas,Monaco,monospace;background:var(--surface-2);padding:2px 6px;border-radius:var(--radius-sm);font-size:.9em}body{font-family:var(--font-family);font-size:var(--font-size-base);color:var(--text-primary);background-color:var(--bg-light);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;background:var(--bg-light)}h1,h2,h3,h4,h5,h6{color:var(--text-dark);line-height:1.2;margin:0 0 var(--spacing-sm) 0;font-weight:700;letter-spacing:-.02em}p{margin:0 0 var(--spacing-md) 0;color:var(--text-secondary)}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-dark)}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;background:var(--surface-1);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:10px 12px;color:var(--text-primary);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--secondary);box-shadow:var(--focus-ring);background:#fff}input::placeholder,textarea::placeholder{color:var(--text-muted)}button{border:none;background:none;cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border-radius:var(--radius-md);font-weight:600;font-size:var(--font-size-sm);transition:transform var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast),color var(--transition-fast);box-shadow:var(--shadow-xs)}.btn:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;box-shadow:0 4px 12px #6366f14d;font-weight:600;position:relative;overflow:hidden}.btn-primary:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#fff3;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn-primary:hover:before{width:300px;height:300px}.btn-primary:hover:not(:disabled){box-shadow:0 6px 20px #6366f166;transform:translateY(-3px)}.btn-secondary{background:var(--surface-2);color:var(--text-primary);border:1px solid var(--border-light);box-shadow:0 1px 3px #0000001a}.btn-secondary:hover:not(:disabled){background:#fff;border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.btn-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 4px 12px #10b9814d;position:relative;overflow:hidden}.btn-success:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#fff3;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn-success:active:before{width:300px;height:300px}.btn-success:hover:not(:disabled){box-shadow:0 6px 20px #10b98166;transform:translateY(-2px)}.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;box-shadow:0 4px 12px #ef44444d;position:relative;overflow:hidden}.btn-danger:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#fff3;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn-danger:active:before{width:300px;height:300px}.btn-danger:hover:not(:disabled){box-shadow:0 6px 20px #ef444466;transform:translateY(-2px)}.btn-outline{background:transparent;border:2px solid var(--border-medium);color:var(--text-primary);box-shadow:none}.btn-outline:hover:not(:disabled){border-color:var(--primary);color:var(--primary);background:#6366f114;transform:translateY(-2px);box-shadow:0 4px 12px #6366f126}.btn-link{background:transparent;color:var(--primary);font-weight:600;box-shadow:none;padding:8px 12px;border-radius:var(--radius-md);min-height:36px}.card{background:var(--surface-1);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);padding:16px}.card-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--border-subtle);margin-bottom:12px}.card-title{font-size:var(--font-size-lg);font-weight:700;color:var(--text-dark)}.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--radius-full);background:var(--bg-secondary);color:var(--text-secondary);font-size:var(--font-size-xs);font-weight:600}.badge.primary{background:#9c7bac26;color:var(--primary-dark)}.badge.success{background:#7cb0782e;color:var(--success-dark)}.badge.warning{background:#ff7f2d33;color:var(--accent-dark)}.badge.error{background:#dc354526;color:#b91c1c}table{width:100%;border-collapse:collapse;background:var(--surface-1)}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border-subtle);font-size:var(--font-size-sm)}th{color:var(--text-secondary);font-weight:700;background:var(--surface-2)}tr:hover td{background:var(--surface-2)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a80;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-container{background:var(--surface-1);border-radius:var(--radius-lg);width:min(90vw,720px);max-height:90vh;overflow:hidden;box-shadow:var(--shadow-3);border:1px solid var(--border-subtle)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-subtle);background:var(--surface-2)}.modal-title{font-size:var(--font-size-lg);font-weight:700;color:var(--text-dark)}.modal-body{padding:20px;overflow-y:auto;max-height:calc(90vh - 140px)}.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid var(--border-subtle);background:var(--surface-2)}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.text-primary{color:var(--primary)}.text-secondary{color:var(--secondary)}.text-accent{color:var(--accent)}.text-success{color:var(--success)}.text-muted{color:var(--text-muted)}.bg-primary{background-color:var(--bg-primary)}.bg-secondary{background-color:var(--bg-secondary)}.bg-light{background-color:var(--bg-light)}.bg-gradient{background:var(--bg-gradient)}:root{--transition: all .3s cubic-bezier(.4, 0, .2, 1)}.enroll-container{min-height:100vh;display:flex;justify-content:center;align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:var(--spacing-4)}.enroll-wrapper{width:100%;max-width:450px}.enroll-title{text-align:center;font-size:2rem;font-weight:800;color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.15);margin-bottom:var(--spacing-3)}.role-selection-enroll{background:#fff;border-radius:var(--radius-xl);padding:var(--spacing-5);box-shadow:var(--shadow-lg);animation:slideUp .5s ease-out}.role-selection-enroll h2{text-align:center;margin-bottom:var(--spacing-1);font-size:1.4rem;font-weight:700;color:var(--text-primary)}.role-subtitle{text-align:center;color:var(--text-secondary);font-size:.8rem;margin-bottom:var(--spacing-3)}.role-cards-enroll{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-3)}.role-card-enroll{padding:var(--spacing-4);border-radius:var(--radius-lg);text-align:center;cursor:pointer;transition:all .3s ease;border:2px solid var(--border-light);background:#fff;min-height:150px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-2);position:relative;overflow:hidden}.role-card-enroll:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#667eea00,#667eea1a);opacity:0;transition:opacity .3s ease}.role-card-enroll:hover{transform:translateY(-6px);box-shadow:0 12px 24px #667eea26;border-color:var(--primary)}.role-card-enroll:hover:before{opacity:1}.role-card-enroll.selected{border-color:var(--primary);background:linear-gradient(135deg,rgba(102,126,234,.05) 0%,transparent 100%)}.role-icon-enroll{font-size:42px;transition:transform .3s ease;z-index:1}.role-card-enroll:hover .role-icon-enroll{transform:scale(1.1)}.role-card-enroll h3{font-size:.95rem;margin:0;font-weight:700;color:var(--text-primary);z-index:1}.role-card-enroll p{font-size:.8rem;margin:0;color:var(--text-secondary);z-index:1}.enroll-form-container{background:#fff;border-radius:var(--radius-xl);padding:var(--spacing-5);box-shadow:var(--shadow-lg);animation:slideUp .5s ease-out .1s backwards}.enroll-form-container h2{text-align:center;margin-bottom:var(--spacing-4);font-size:1.5rem;font-weight:700;color:var(--text-primary)}.back-button-enroll{background:none;border:none;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:var(--spacing-2);font-size:var(--font-size-sm);font-weight:500;transition:all .3s ease;padding:0}.back-button-enroll:hover{color:var(--primary);transform:translate(-2px)}.form-group-enroll{margin-bottom:var(--spacing-3)}.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-2)}.form-row .form-group-enroll{margin-bottom:0}.form-group-enroll label{display:block;margin-bottom:var(--spacing-1);color:var(--text-primary);font-weight:600;font-size:.8rem}.form-control-enroll{width:100%;padding:var(--spacing-2) var(--spacing-3);border:1px solid var(--border-light);border-radius:var(--radius-md);font-size:.95rem;line-height:1.4;transition:all .3s ease;font-family:inherit}.form-control-enroll:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #667eea1a;background:#f0f4ff}.form-control-enroll:disabled{background:var(--bg-light);opacity:.6;cursor:not-allowed}.password-input-wrapper{position:relative;display:flex;align-items:center}.password-input-wrapper .form-control-enroll{padding-right:40px}.toggle-password{position:absolute;right:12px;background:none;border:none;cursor:pointer;font-size:1.2rem;color:var(--text-secondary);transition:all .3s ease;padding:var(--spacing-2)}.toggle-password:hover{color:var(--primary)}.error-banner-enroll{background:#ef44441a;color:#dc2626;padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-md);margin-bottom:var(--spacing-3);font-size:.85rem;border:1px solid rgba(239,68,68,.2);border-left:4px solid #dc2626;animation:slideIn .3s ease;display:flex;align-items:center;gap:var(--spacing-2)}.success-banner-enroll{background:#10b9811a;color:#059669;padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-md);margin-bottom:var(--spacing-3);font-size:.85rem;border:1px solid rgba(16,185,129,.2);border-left:4px solid #059669;animation:slideIn .3s ease;display:flex;align-items:center;gap:var(--spacing-2)}.btn-enroll{width:100%;padding:var(--spacing-3);background:linear-gradient(135deg,var(--primary) 0%,#5a67d8 100%);color:#fff;border:none;border-radius:var(--radius-md);font-weight:700;font-size:.95rem;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden;box-shadow:0 4px 15px #667eea4d;margin-top:var(--spacing-3)}.btn-enroll:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:#ffffff4d;border-radius:50%;transform:translate(-50%,-50%);transition:width .6s ease,height .6s ease}.btn-enroll:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.btn-enroll:active:before{width:300px;height:300px}.btn-enroll:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary-enroll{width:100%;padding:var(--spacing-2);background:transparent;color:var(--primary);border:1px solid var(--border-light);border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:all .3s ease;margin-top:var(--spacing-2);font-size:.9rem}.btn-secondary-enroll:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.login-link{text-align:center;margin-top:var(--spacing-5);font-size:var(--font-size-sm);color:var(--text-secondary)}.login-link a{color:var(--primary);font-weight:600;text-decoration:none;transition:all .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}@media (max-width: 640px){.enroll-container{padding:var(--spacing-4)}.enroll-title{font-size:var(--font-size-3xl);margin-bottom:var(--spacing-6)}.role-selection-enroll,.enroll-form-container{padding:var(--spacing-6)}.role-cards-enroll{grid-template-columns:1fr}.form-row{grid-template-columns:1fr;gap:var(--spacing-3)}.form-group-enroll{margin-bottom:var(--spacing-4)}}@media (max-width: 480px){.enroll-wrapper{max-width:100%}.enroll-title{font-size:var(--font-size-2xl)}.role-selection-enroll,.enroll-form-container{padding:var(--spacing-4);border-radius:var(--radius-lg)}.role-card-enroll{padding:var(--spacing-4);min-height:150px}.role-icon-enroll{font-size:40px}.btn-enroll,.btn-secondary-enroll{padding:var(--spacing-3);font-size:var(--font-size-sm)}}.enroll-form-container,.role-selection-enroll{animation:fadeIn .3s ease}.login-container{min-height:100vh;display:flex;justify-content:center;align-items:center;background:linear-gradient(135deg,#f8f9fa,#e8ecf1,#f3f4f6);padding:var(--spacing-6)}.login-wrapper{width:100%;max-width:480px}.login-title{text-align:center;font-size:var(--font-size-4xl);font-weight:700;color:var(--primary);margin-bottom:var(--spacing-5)}.admin-button{position:fixed;top:var(--spacing-6);left:var(--spacing-6);width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-lg);font-size:20px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition);box-shadow:var(--shadow-sm)}.admin-button:hover{background:var(--primary);color:#fff;box-shadow:var(--shadow-md)}.role-selection{background:#fff;border-radius:var(--radius-xl);padding:var(--spacing-6);box-shadow:var(--shadow-lg)}.role-selection h2{text-align:center;margin-bottom:var(--spacing-4)}.role-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-4)}.role-card{padding:var(--spacing-4);border-radius:var(--radius-lg);text-align:center;cursor:pointer;transition:all var(--transition);border:2px solid var(--border-light);background:#fff;min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-2)}.role-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}.role-icon{font-size:48px}.role-card h3{font-size:var(--font-size-lg);margin:0}.role-card p{font-size:var(--font-size-sm);margin:0}.login-form-container{background:#fff;border-radius:var(--radius-xl);padding:var(--spacing-6);box-shadow:var(--shadow-lg)}.login-form-container h2{text-align:center;margin-bottom:var(--spacing-4)}.back-button{background:none;border:none;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:var(--spacing-3);font-size:var(--font-size-sm)}.back-button:hover{color:var(--primary)}.form-group{margin-bottom:var(--spacing-4)}.form-group label{display:block;margin-bottom:var(--spacing-2);color:var(--text-primary);font-weight:500;font-size:var(--font-size-sm)}.error-banner{background:#ef44441a;color:#dc2626;padding:var(--spacing-3);border-radius:var(--radius-md);margin-bottom:var(--spacing-4);font-size:var(--font-size-sm);border:1px solid rgba(239,68,68,.2)}.btn-login{width:100%;padding:var(--spacing-4);background:var(--primary);color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:all var(--transition)}.btn-login:hover{background:var(--primary-dark)}.btn-login:disabled{opacity:.5;cursor:not-allowed}.signup-link{text-align:center;margin-top:var(--spacing-5);font-size:var(--font-size-sm);color:var(--text-secondary)}.signup-link a{color:var(--primary);font-weight:500}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.login-form-container,.role-selection{animation:fadeIn .3s ease}.account-admin-container{padding:0;display:flex;flex-direction:column;gap:var(--spacing-6);width:100%}.account-admin-header{display:flex;flex-direction:column;gap:var(--spacing-2);padding-bottom:var(--spacing-5);border-bottom:2px solid var(--border-light)}.account-admin-header h1{margin:0;font-size:var(--font-size-3xl)}.account-admin-header p{margin:0;color:var(--text-secondary);font-size:var(--font-size-base)}.account-tabs{display:flex;gap:var(--spacing-6);border-bottom:2px solid var(--border-light)}.tab-btn{padding:var(--spacing-3) var(--spacing-4);background:transparent;border:none;border-bottom:3px solid transparent;color:var(--text-secondary);font-size:var(--font-size-sm);font-weight:600;cursor:pointer;transition:all var(--transition);display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:-2px}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.tab-badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 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var(--border-light)}.admin-sidebar-title{font-size:var(--font-size-2xl);font-weight:700;color:var(--primary);margin-bottom:var(--spacing-6);padding-bottom:var(--spacing-5);border-bottom:1px solid var(--border-light)}.admin-menu-list{list-style:none;padding:0;margin:0;flex:1}.admin-menu-item{padding:var(--spacing-3) var(--spacing-4);margin:var(--spacing-1) 0;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);background:transparent;color:var(--text-secondary);font-weight:500;border:none;font-size:var(--font-size-sm);width:100%;text-align:left}.admin-menu-item:hover{background:var(--surface-2);color:var(--text-primary)}.admin-menu-item.active{background:#6366f11a;color:var(--primary);font-weight:600}.admin-logout-button{padding:var(--spacing-3) var(--spacing-4);border-radius:var(--radius-md);background:var(--error);color:#fff;border:none;cursor:pointer;font-weight:600;font-size:var(--font-size-sm);transition:all var(--transition);width:100%;margin-top:var(--spacing-4)}.admin-logout-button:hover{opacity:.9}.admin-content{flex:1;padding:var(--page-padding);max-width:var(--page-max-width);margin:0 auto;width:100%}.admin-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--spacing-8);border:1px solid var(--border-light);max-width:1200px}.admin-title{margin:0 0 var(--spacing-3) 0;font-size:var(--font-size-3xl)}.admin-body{color:var(--text-secondary);line-height:1.6;font-size:var(--font-size-base)}.admin-paragraph{margin:0 0 var(--spacing-4) 0;font-size:var(--font-size-base);color:var(--text-secondary)}.admin-container .teacher-title{font-size:var(--font-size-3xl);margin:0 0 var(--spacing-3) 0}.admin-container .teacher-paragraph{margin:0 0 var(--spacing-4) 0;font-size:var(--font-size-base);color:var(--text-secondary)}.admin-container .teacher-body{margin-top:var(--spacing-6)}.admin-container 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var(--spacing-6);font-size:var(--font-size-base);font-weight:600;letter-spacing:.3px;border-radius:var(--radius-lg);background:linear-gradient(120deg,#0ea5e9,#6366f1 45%,#22c55e);background-size:200% 200%;color:#fff;border:none;box-shadow:0 12px 22px #2563eb40;transition:transform var(--transition),box-shadow var(--transition),filter var(--transition),background-position .6s ease;flex-shrink:0;align-self:flex-start;animation:createCoursePulse 8s ease infinite}.btn-create-course .btn-icon{font-size:var(--font-size-lg);display:inline-flex;align-items:center;justify-content:center;transition:transform var(--transition)}.btn-create-course:hover .btn-icon{transform:rotate(90deg) scale(1.1)}.btn-create-course:hover{transform:translateY(-2px);box-shadow:0 18px 32px #2563eb59;filter:brightness(1.08);background-position:100% 50%;cursor:pointer}.btn-create-course:active{transform:translateY(0);box-shadow:0 10px 18px #2563eb40}@keyframes createCoursePulse{0%{background-position:0% 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infinite}.course-detail-header:after{content:"";position:absolute;bottom:-20%;left:-10%;width:350px;height:350px;background:radial-gradient(circle,rgba(255,255,255,.15) 0%,transparent 70%);border-radius:50%;animation:float 10s ease-in-out infinite reverse}@keyframes float{0%,to{transform:translate(0)}50%{transform:translate(-20px,-20px)}}.course-detail-header .btn-link{background:#ffffff26;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.4);color:#fff!important;padding:var(--spacing-2) var(--spacing-4);margin-bottom:var(--spacing-3);font-weight:600;position:relative;z-index:2;box-shadow:0 4px 12px #0000001a;display:inline-flex;align-items:center;gap:var(--spacing-2)}.course-detail-header .btn-link:hover{background:#ffffff4d;transform:translate(-6px);color:#fff!important;border-color:#fff9;box-shadow:0 6px 16px #00000026}.course-detail-header .btn-link:focus{outline:none;background:#ffffff4d;color:#fff!important;box-shadow:0 0 0 4px 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rotate(5deg)}.comments-section{margin-top:var(--spacing-3);padding-top:var(--spacing-3);border-top:1px solid var(--border-light)}.comments-section h4{font-size:var(--font-size-xs);font-weight:700;color:var(--text-primary);margin:0 0 var(--spacing-2) 0;display:flex;align-items:center;gap:var(--spacing-2)}.comments-section h4:before{content:"💬";font-size:18px}.comment-item{padding:var(--spacing-2) var(--spacing-3);background:var(--surface-1);border-radius:var(--radius-sm);margin-bottom:var(--spacing-2);border-left:2px solid var(--primary);transition:all var(--transition)}.comment-item:hover{background:#fff;box-shadow:var(--shadow-xs);transform:translate(2px)}.comment-author{font-weight:700;font-size:var(--font-size-sm);color:var(--primary);margin-bottom:var(--spacing-2);display:flex;align-items:center;gap:var(--spacing-2)}.comment-author:before{content:"👤";font-size:16px}.comment-text{font-size:var(--font-size-xs);color:var(--text-secondary);margin:0 0 var(--spacing-1) 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