:root{--color-primary:#2943a4;--color-primary-dark:#1b2f78;--color-primary-mid:#3768db;--color-primary-light:#6082fb;--color-primary-pale:#b1c2ff;--color-primary-lighter:#e8eeff;--color-dark:#1e293b;--color-gray-50:#f8fafc;--color-gray-100:#f1f5f9;--color-gray-200:#e2e8f0;--color-gray-300:#cbd5e1;--color-gray-400:#94a3b8;--color-gray-500:#64748b;--color-gray-600:#475569;--color-gray-700:#334155;--color-gray-800:#1e293b;--color-gray-900:#0f172a;--color-success:#10b981;--color-warning:#f59e0b;--color-danger:#c8364c;--font-family:"Arial Rounded MT Bold", "Nunito", system-ui, sans-serif;--font-body:Arial, Helvetica, sans-serif;--font-mono:"JetBrains Mono", monospace;--font-hand:"Caveat", "Bradley Hand", "Marker Felt", "Comic Sans MS", cursive;--paper-base:#fbfaf5;--paper-grid:repeating-linear-gradient(to right, transparent 0, transparent 23px, #3768db09 23px, #3768db09 24px), repeating-linear-gradient(to bottom, transparent 0, transparent 23px, #3768db09 23px, #3768db09 24px);--radius-sm:6px;--radius-md:10px;--radius-lg:12px;--radius-xl:24px;--radius-pill:980px;--shadow-card:0 1px 3px #2943a40f, 0 4px 12px #2943a40a;--shadow-hover:0 20px 56px #2943a421;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a;--sidebar-width:220px;--topbar-height:56px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{font-family:var(--font-family);color:var(--color-dark);background:var(--color-gray-50);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:var(--color-primary);text-decoration:none}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:var(--font-body)}.sidebar{left:0;top:var(--topbar-height);width:var(--sidebar-width);z-index:200;background:linear-gradient(#2e63b8 0%,#2549a8 100%);flex-direction:column;transition:transform .3s;display:flex;position:fixed;bottom:0;overflow-y:auto}.sidebar-overlay{z-index:199;background:#0006;display:none;position:fixed;inset:0}.nav-item{border-radius:var(--radius-sm);color:#ffffffbf;align-items:center;gap:12px;margin:2px 8px;padding:10px 16px;font-size:14px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.nav-item:hover{color:#fff;background:#ffffff1a}.nav-item--active{color:#fff;background:#ffffff26;font-weight:700}.nav-icon{flex-shrink:0;width:20px;height:20px}.topbar{height:var(--topbar-height);background:var(--color-primary);z-index:100;align-items:center;gap:16px;padding:0 24px;display:flex;position:sticky;top:0}.auth-page{background: linear-gradient(to right, transparent 0, transparent 76px, #c8364c24 76px, #c8364c24 77px, transparent 77px, transparent 100%), var(--paper-grid), var(--paper-base);justify-content:center;align-items:center;min-height:100vh;padding:32px 20px;display:flex}.auth-card{width:100%;max-width:480px;box-shadow:none;background:0 0;border-radius:0;padding:48px 44px;animation:.7s both authFadeUp}@keyframes authFadeUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.auth-card h1{text-align:center;color:var(--color-primary);margin-bottom:4px;font-size:26px;font-weight:800}.auth-card p{color:var(--color-gray-500);text-align:center;margin-bottom:24px;font-size:14px}.auth-card .btn-primary{background:var(--color-primary);border-radius:var(--radius-md);padding:14px}.auth-card .btn-primary:hover{background:var(--color-primary-dark);box-shadow:none;transform:none}.auth-brand-academy{font-family:var(--font-hand);color:var(--color-primary);letter-spacing:.01em;text-align:center;font-size:34px;font-weight:600;line-height:1}.form-group{margin-bottom:16px}.form-group label{color:var(--color-primary);margin-bottom:6px;font-size:13px;font-weight:700;display:block}.form-group input,.form-group select{border:1px solid var(--color-gray-200);border-radius:var(--radius-sm);background:#fff;outline:none;width:100%;padding:10px 14px;font-size:14px;transition:border-color .2s}.form-group input:focus,.form-group select:focus{border-color:var(--color-primary-light);box-shadow:0 0 0 3px #2943a41a}.form-error{color:var(--color-danger);margin-top:4px;font-size:12px}.btn-primary{border-radius:var(--radius-md);background:linear-gradient(135deg, var(--color-primary-mid) 0%, var(--color-primary) 100%);color:#fff;cursor:pointer;border:none;width:100%;padding:12px;font-size:15px;font-weight:700;transition:all .2s}.btn-primary:hover{background:linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary-mid) 100%);transform:translateY(-1px);box-shadow:0 4px 12px #2943a44d}.btn-primary:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;transform:none}.auth-tabs{border-radius:var(--radius-md);background:#f2f2f2;margin-bottom:24px;padding:4px;display:flex}.auth-tab{text-align:center;font-size:14px;font-weight:600;font-family:var(--font-family);color:var(--color-gray-500);cursor:pointer;background:0 0;border:none;border-radius:8px;flex:1;padding:10px;transition:all .15s}.auth-tab--active{color:var(--color-primary);background:#fff;box-shadow:0 1px 3px #00000014}.main-content{margin-left:var(--sidebar-width);background:var(--paper-grid), var(--paper-base);flex:1}@media (width<=960px){.sidebar{transform:translate(-100%)}.sidebar--open{transform:translate(0)}.sidebar-overlay{display:block}.menu-btn{display:block!important}.main-content{margin-left:0}.topbar .search-bar{display:none}}@media (width<=640px){.topbar{gap:8px;padding:0 12px}.main-content>main{padding:16px!important}.auth-card{padding:28px 20px}.grid-responsive-3,.grid-responsive-2{grid-template-columns:1fr!important}.grid-responsive-4{grid-template-columns:repeat(2,1fr)!important}.course-card-horizontal{flex-direction:column!important}.course-card-horizontal .course-card-left{width:100%!important;min-height:80px!important;padding:16px!important}.course-card-horizontal .course-card-right{flex-direction:column!important;align-items:flex-start!important}.course-card-horizontal .course-card-right button{width:100%;margin-top:12px;margin-left:0!important}.admin-action-bar{flex-wrap:wrap;gap:8px!important}.admin-action-bar button{padding:8px 12px!important;font-size:12px!important}.cert-grid{grid-template-columns:1fr!important}.badge-grid{grid-template-columns:repeat(3,1fr)!important}.product-grid,.kpi-grid{grid-template-columns:repeat(2,1fr)!important}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.flashcard-container{perspective:1000px}.flashcard-inner{transform-style:preserve-3d;transition:transform .6s}.flashcard-inner.flipped{transform:rotateY(180deg)}.faq-answer{transition:max-height .3s}.admin-table{border-collapse:collapse;width:100%}.admin-table th{text-align:left;text-transform:uppercase;letter-spacing:.05em;color:var(--color-gray-400);border-bottom:2px solid var(--color-gray-200);padding:12px 16px;font-size:12px;font-weight:700}.admin-table td{border-bottom:1px solid var(--color-gray-100);padding:12px 16px;font-size:14px}.admin-table tr:hover td{background:var(--color-gray-50)}.sidebar::-webkit-scrollbar{width:4px}.sidebar::-webkit-scrollbar-track{background:0 0}.sidebar::-webkit-scrollbar-thumb{background:#fff3;border-radius:2px}