:root{--primary:#1B4D3E;--primary-light:#2D6A56;--primary-dark:#0F2E25;--primary-50:#eef5f2;--primary-100:#d4e8e0;--primary-200:#a8d1c1;--gold:#FFC107;--gold-dark:#E5A800;--gold-50:#fff8e1;--bg-body:#fafbfc;--bg-surface:#ffffff;--bg-card:#ffffff;--success:#059669;--success-light:#10b981;--success-dark:#047857;--success-50:#ecfdf5;--warning:#d97706;--warning-light:#f59e0b;--warning-50:#fffbeb;--danger:#dc2626;--danger-light:#ef4444;--danger-50:#fef2f2;--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;--ng-green:#008751;--ng-green-light:#00a86b;--ng-white:#ffffff;--gradient-primary:linear-gradient(135deg,#1B4D3E,#2D6A56);--gradient-success:linear-gradient(135deg,#059669,#10b981);--gradient-hero:linear-gradient(135deg,#0F2E25,#1B4D3E 50%,#2D6A56);--gradient-parent:linear-gradient(135deg,#047857,#059669 50%,#10b981);--gradient-gold:linear-gradient(135deg,#FFC107,#E5A800);--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 1px 3px rgba(0,0,0,0.08),0 1px 2px rgba(0,0,0,0.06);--shadow-lg:0 4px 6px rgba(0,0,0,0.07),0 2px 4px rgba(0,0,0,0.06);--shadow-xl:0 10px 15px rgba(0,0,0,0.08),0 4px 6px rgba(0,0,0,0.05);--sidebar-width:260px;--topbar-height:64px;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);color:var(--gray-800);background:var(--bg-body);line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;color:var(--gray-900)}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;border-radius:var(--radius-md);font-weight:600;font-size:.875rem;border:1px solid var(--gray-300);cursor:pointer;transition:all .15s ease;white-space:nowrap;background:#ffffff;color:var(--gray-700)}.btn:hover{background:var(--gray-50);border-color:var(--gray-400);box-shadow:var(--shadow-sm)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--primary);border:1px solid var(--primary);color:white}.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);box-shadow:var(--shadow-md)}.btn-secondary{background:#ffffff;border:1px solid var(--gray-300);color:var(--gray-700)}.btn-secondary:hover{background:var(--gray-50);border-color:var(--gray-400)}.btn-success{background:var(--success);border:1px solid var(--success);color:white}.btn-success:hover{background:var(--success-dark)}.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary)}.btn-outline:hover{background:var(--primary);color:white}.btn-danger{background:var(--danger);border:1px solid var(--danger);color:white}.btn-danger:hover{background:#b91c1c}.btn-gold{background:var(--gold);border:1px solid var(--gold-dark);color:var(--primary-dark);font-weight:700}.btn-gold:hover{background:var(--gold-dark);box-shadow:var(--shadow-md)}.btn-sm{padding:.375rem .75rem;font-size:.8rem}.btn-lg{padding:.875rem 1.75rem;font-size:1rem}.btn-icon{width:36px;height:36px;padding:0;border-radius:50%;background:var(--gray-100);color:var(--gray-600);border:1px solid var(--gray-200);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .15s}.btn-icon:hover{background:var(--gray-200);color:var(--primary)}.card{background:#ffffff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid #e2e8f0;overflow:hidden;transition:box-shadow .2s ease}.card:hover{box-shadow:var(--shadow-lg)}.card-body{padding:1.25rem}.card-glass{border:1px solid #e2e8f0}.card-glass,.stat-card{background:#ffffff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.stat-card{padding:1.25rem;border:1px solid #e2e8f0;border-left:4px solid var(--primary);display:flex;align-items:flex-start;gap:1rem;transition:box-shadow .2s ease}.stat-card:hover{box-shadow:var(--shadow-lg)}.stat-card .stat-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.25rem;flex-shrink:0}.stat-card .stat-icon.primary{background:var(--primary-50);color:var(--primary)}.stat-card .stat-icon.success{background:var(--success-50);color:var(--success)}.stat-card .stat-icon.warning{background:var(--warning-50);color:var(--warning)}.stat-card .stat-icon.danger{background:var(--danger-50);color:var(--danger)}.stat-card .stat-content .stat-value{font-size:1.75rem;font-weight:800;color:var(--gray-900);line-height:1}.stat-card .stat-content .stat-label{font-size:.8rem;color:var(--gray-500);margin-top:.25rem}.stat-card .stat-content .stat-change{font-size:.75rem;font-weight:600;margin-top:.25rem}.stat-card .stat-content .stat-change.up{color:var(--success)}.stat-card .stat-content .stat-change.down{color:var(--danger)}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between;background:#ffffff;border-bottom:1px solid #e2e8f0;box-shadow:var(--shadow-sm);transition:all .3s ease}.navbar .brand{font-size:1.5rem;font-weight:800;color:var(--primary)}.navbar .nav-links{display:flex;gap:2rem;list-style:none}.navbar .nav-links a{font-weight:500;color:var(--gray-600);transition:color .2s;font-size:.9rem}.navbar .nav-links a.active,.navbar .nav-links a:hover{color:var(--primary)}.navbar .nav-actions{display:flex;gap:.75rem;align-items:center}.hero{background:var(--gradient-hero);color:white;padding:8rem 2rem 5rem;text-align:center;position:relative;overflow:hidden}.hero h1{color:white;font-size:3.25rem;max-width:800px;margin:0 auto 1.25rem;line-height:1.1}.hero p{font-size:1.2rem;opacity:.9;max-width:600px;margin:0 auto 2rem}.hero-stats{display:flex;justify-content:center;gap:3rem;margin-top:3rem}.hero-stats .hero-stat{text-align:center}.hero-stats .hero-stat .hero-stat-value{font-size:2rem;font-weight:800}.hero-stats .hero-stat .hero-stat-label{font-size:.85rem;opacity:.8}.section{padding:5rem 2rem}.section-center{text-align:center;max-width:600px;margin:0 auto 3rem}.section-center h2{margin-bottom:.75rem}.section-center p{color:var(--gray-500)}.container{max-width:1200px;margin:0 auto}.grid-2{grid-template-columns:repeat(2,1fr);grid-gap:1.5rem}.grid-2,.grid-3{display:grid;gap:1.5rem}.grid-3{grid-template-columns:repeat(3,1fr);grid-gap:1.5rem}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:1.5rem;gap:1.5rem}@media (max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.feature-card{background:#ffffff;border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-md);border:1px solid #e2e8f0;transition:all .2s ease;text-align:center}.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.feature-card .feature-icon{width:64px;height:64px;border-radius:var(--radius-md);background:var(--primary-50);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin:0 auto 1rem}.feature-card h3{font-size:1.1rem;margin-bottom:.5rem}.feature-card p{font-size:.9rem;color:var(--gray-500);line-height:1.5}.dashboard-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--primary);color:white;position:fixed;top:0;left:0;bottom:0;display:flex;flex-direction:column;z-index:100;transition:transform .3s ease}.sidebar.parent-sidebar{background:var(--success-dark)}.sidebar-brand{padding:1.25rem 1.5rem;font-size:1.25rem;font-weight:800;border-bottom:1px solid rgba(255,255,255,.15);display:flex;align-items:center;gap:.75rem}.sidebar-brand .brand-icon{width:36px;height:36px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center}.sidebar-nav{flex:1 1;padding:1rem 0;overflow-y:auto}.sidebar-nav .nav-section{padding:.5rem 1.5rem;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.45);font-weight:600}.sidebar-nav .nav-item,.sidebar-nav a{display:flex;align-items:center;gap:.75rem;padding:.625rem 1.5rem;color:rgba(255,255,255,.7);font-size:.875rem;font-weight:500;transition:all .15s ease;cursor:pointer;border-left:3px solid transparent}.sidebar-nav .nav-item:hover,.sidebar-nav a:hover{background:rgba(255,255,255,.1);color:#ffffff;border-left-color:rgba(255,255,255,.3)}.sidebar-nav .nav-item.active,.sidebar-nav a.active{background:rgba(255,255,255,.15);color:var(--gold);border-left:3px solid var(--gold)}.sidebar-nav .nav-icon{width:20px;text-align:center;font-size:1rem}.topbar{height:var(--topbar-height);background:#ffffff;border-bottom:1px solid #e2e8f0;display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;position:-webkit-sticky;position:sticky;top:0;z-index:50;box-shadow:var(--shadow-sm)}.topbar-title h2{font-size:1.25rem;font-weight:700;color:var(--gray-900)}.topbar-title p{font-size:.8rem;color:var(--gray-500)}.topbar-actions{gap:1rem}.topbar-actions,.topbar-user{display:flex;align-items:center}.topbar-user{gap:.75rem}.topbar-user .avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;color:white;font-weight:700;font-size:.8rem}.topbar-user .user-info{line-height:1.2}.topbar-user .user-info .user-name{font-weight:600;font-size:.875rem;color:var(--gray-900)}.topbar-user .user-info .user-role{font-size:.75rem;color:var(--gray-500)}.main-content{margin-left:var(--sidebar-width);flex:1 1;min-height:100vh;background:var(--bg-body)}.page-content{padding:1.5rem}.data-table{width:100%;border-collapse:collapse}.data-table thead{background:var(--gray-50)}.data-table th{padding:.75rem 1rem;text-align:left;font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--gray-600);border-bottom:2px solid #e2e8f0}.data-table td{padding:.75rem 1rem;font-size:.875rem;border-bottom:1px solid var(--gray-100);color:var(--gray-700)}.data-table tbody tr{transition:background .1s}.data-table tbody tr:nth-child(2n){background:#f8faf9}.data-table tbody tr:hover{background:var(--primary-50)}.badge{display:inline-flex;align-items:center;padding:.2rem .65rem;border-radius:100px;font-size:.75rem;font-weight:600;border:1px solid transparent}.badge-success{background:#d1fae5;color:#065f46;border-color:#a7f3d0}.badge-warning{background:#fef3c7;color:#92400e;border-color:#fde68a}.badge-danger{background:#fee2e2;color:#991b1b;border-color:#fecaca}.badge-primary{background:var(--primary-50);color:var(--primary);border-color:var(--primary-100)}.badge-gray{background:var(--gray-100);color:var(--gray-600);border-color:var(--gray-200)}.form-group{margin-bottom:1.25rem}.form-group label{display:block;font-size:.85rem;font-weight:600;color:var(--gray-700);margin-bottom:.375rem}.form-control{width:100%;padding:.625rem .875rem;border:1px solid #d1d5db;border-radius:var(--radius-md);font-size:.875rem;font-family:var(--font-sans);background:#ffffff;color:var(--gray-900);transition:border-color .15s ease,box-shadow .15s ease;outline:none}.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,77,62,.1)}.form-control::placeholder{color:var(--gray-400)}textarea.form-control{resize:vertical;min-height:100px}select.form-control{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236b7280'%3E%3Cpath d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;background-size:1rem;padding-right:2.5rem}.filter-bar{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center;margin-bottom:1.25rem}.search-input{flex:1 1;min-width:200px;position:relative}.search-input input{width:100%;padding:.5rem .75rem .5rem 2.25rem;border:1px solid #d1d5db;border-radius:var(--radius-md);font-size:.85rem;outline:none;background:#ffffff;color:var(--gray-900)}.search-input input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,77,62,.1)}.pagination{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;border-top:1px solid var(--gray-200);font-size:.85rem;color:var(--gray-500)}.pagination-buttons{display:flex;gap:.25rem}.pagination-buttons button{padding:.375rem .75rem;border:1px solid var(--gray-300);border-radius:var(--radius-sm);background:#ffffff;color:var(--gray-700);cursor:pointer;font-size:.8rem;transition:all .15s}.pagination-buttons button.active{background:var(--primary);color:white;border-color:var(--primary)}.pagination-buttons button:hover:not(.active){background:var(--gray-50)}.progress{background:var(--gray-200);border-radius:100px;height:8px;overflow:hidden}.progress-bar{height:100%;border-radius:100px;background:var(--primary);transition:width .6s ease}.progress-bar.success{background:var(--success)}.progress-bar.warning{background:var(--warning)}.progress-bar.danger{background:var(--danger)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-body);padding:2rem}.auth-page.parent{background:linear-gradient(135deg,#f0fdf4,#ecfdf5)}.auth-card{background:#ffffff;border:1px solid #e2e8f0;border-radius:var(--radius-xl);padding:2.5rem;width:100%;max-width:420px;box-shadow:var(--shadow-lg)}.auth-card h2{text-align:center;margin-bottom:.5rem;color:var(--gray-900)}.auth-card .auth-subtitle{text-align:center;color:var(--gray-500);font-size:.9rem;margin-bottom:1.75rem}.footer{background:var(--primary-dark);color:rgba(255,255,255,.8);padding:3rem 2rem 1.5rem;border-top:1px solid #e2e8f0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;grid-gap:2rem;gap:2rem;max-width:1200px;margin:0 auto}.footer h4{color:#ffffff;font-size:1rem;margin-bottom:1rem}.footer a{display:block;font-size:.85rem;margin-bottom:.5rem;transition:color .2s}.footer a:hover{color:var(--gold)}.footer-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:2rem;padding-top:1.5rem;text-align:center;font-size:.85rem}.pricing-card{background:#ffffff;border-radius:var(--radius-xl);padding:2.5rem;box-shadow:var(--shadow-md);border:1px solid #e2e8f0;text-align:center;transition:all .2s ease}.pricing-card.featured{border-color:var(--gold);transform:scale(1.05);box-shadow:var(--shadow-xl)}.pricing-card .price{font-size:2.5rem;font-weight:800;color:var(--primary);margin:1rem 0}.pricing-card .price span{font-size:.9rem;font-weight:400;color:var(--gray-500)}.pricing-card ul{list-style:none;text-align:left;margin:1.5rem 0}.pricing-card li{padding:.5rem 0;font-size:.9rem;color:var(--gray-600);gap:.5rem}.pricing-card li,.quick-action{display:flex;align-items:center}.quick-action{gap:.75rem;padding:.875rem 1rem;background:#ffffff;border-radius:var(--radius-md);border:1px solid #e2e8f0;cursor:pointer;transition:all .15s ease}.quick-action:hover{border-color:var(--primary);box-shadow:var(--shadow-md)}.quick-action .action-icon{width:40px;height:40px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.1rem}.modal-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.modal-container{background:#ffffff;border:1px solid #e2e8f0;border-radius:var(--radius-xl);width:90%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl);animation:slideUp .3s ease}.modal-container.modal-lg{max-width:640px}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;border-bottom:1px solid var(--gray-200)}.modal-header h3{font-size:1.1rem;margin:0;color:var(--gray-900)}.modal-close{background:var(--gray-100);border:1px solid var(--gray-200);font-size:1.25rem;cursor:pointer;color:var(--gray-500);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .15s}.modal-close:hover{background:var(--gray-200);color:var(--gray-700)}.modal-body{padding:1.5rem}.modal-footer{padding:1rem 1.5rem;border-top:1px solid var(--gray-200);display:flex;justify-content:flex-end;gap:.75rem}.toast-notification{position:fixed;bottom:2rem;right:2rem;background:var(--gray-900);color:#ffffff;padding:.75rem 1.25rem;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;box-shadow:var(--shadow-lg);z-index:2000;animation:slideUp .3s ease,fadeOut .3s ease 2.7s forwards}.grade-input{width:80px;padding:.375rem .5rem;border:1px solid #d1d5db;border-radius:var(--radius-sm);font-size:.875rem;font-family:var(--font-sans);text-align:center;outline:none;transition:border-color .15s;background:#ffffff;color:var(--gray-900)}.grade-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,77,62,.1)}.grade-input::-webkit-inner-spin-button,.grade-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.grade-table td{padding:.5rem .75rem;vertical-align:middle}.loading-spinner{display:flex;align-items:center;justify-content:center;padding:3rem;color:var(--gray-500);font-size:.9rem}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translateX(-20px)}to{opacity:1;transform:translateX(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.fade-in-up{animation:fadeInUp .5s ease forwards}.slide-in-left{animation:slideInLeft .4s ease forwards}@media (max-width:1024px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main-content{margin-left:0}}@media (max-width:768px){.hero h1{font-size:2rem}.hero-stats{flex-direction:column;gap:1rem}.navbar .nav-links{display:none}.footer-grid{grid-template-columns:1fr}h1{font-size:1.75rem}h2{font-size:1.5rem}}.text-center{text-align:center}.text-right{text-align:right}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.gap-1{gap:.5rem}.gap-2{gap:1rem}.flex{display:flex}.flex-between{justify-content:space-between}.flex-between,.flex-center{display:flex;align-items:center}.flex-center{justify-content:center}.flex-wrap{flex-wrap:wrap}.w-full{width:100%}.hidden{display:none}