:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}:root{--primary:#2554e8;--primary-dark:#1a3fc4;--primary-light:#eef2ff;--success:#16a34a;--success-light:#dcfce7;--danger:#dc2626;--danger-light:#fee2e2;--text:#111827;--text-muted:#6b7280;--border:#e5e7eb;--bg:#f5f6fa;--card:#fff;--radius:14px}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.login-page{background:linear-gradient(135deg,#2554e8 0%,#12235e 100%);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{text-align:center;background:#fff;border-radius:20px;width:100%;max-width:380px;padding:2.75rem;box-shadow:0 20px 60px #00000040}.login-badge{background:var(--primary-light);width:52px;height:52px;color:var(--primary);border-radius:14px;justify-content:center;align-items:center;margin:0 auto 1rem;display:flex}.login-card h1{color:var(--text);margin:0 0 .25rem;font-size:1.5rem}.login-subtitle{color:var(--text-muted);margin:0 0 1.5rem;font-size:.85rem}.login-card form{text-align:left;flex-direction:column;gap:.4rem;display:flex}.login-card label{color:#444;margin-top:.5rem;font-size:.8rem;font-weight:600}.login-card input{border:1.5px solid var(--border);border-radius:10px;padding:.8rem .9rem;font-size:1rem}.login-card input:focus{border-color:var(--primary);outline:none}.login-card button[type=submit]{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:10px;margin-top:1.1rem;padding:.85rem;font-size:1rem;font-weight:600}.login-card button[type=submit]:hover{background:var(--primary-dark)}.login-card button[type=submit]:disabled{cursor:default;background:#b6c2f2}.link-button{color:var(--primary);cursor:pointer;background:0 0;border:none;margin-top:.6rem;padding:0;font-size:.85rem}.email-display{color:#333;margin:0 0 .5rem;font-weight:600}.error{color:var(--danger);margin:.4rem 0;font-size:.85rem}.page-container{max-width:960px;margin:0 auto;padding:2rem 2.5rem 4rem}.app-header{justify-content:space-between;align-items:center;margin-bottom:.4rem;display:flex}.app-header-titles h1{margin:0;font-size:1.7rem}.app-header-titles p{color:var(--text-muted);margin:.15rem 0 0;font-size:.9rem}.btn{cursor:pointer;border:none;border-radius:10px;padding:.65rem 1.2rem;font-size:.9rem;font-weight:600}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{color:#333;border:1.5px solid var(--border);background:#fff}.btn-secondary:hover{background:#f3f4f6}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;margin:1.75rem 0 2.25rem;display:grid}.stat-card{background:var(--card);border-radius:var(--radius);padding:1.25rem 1.4rem;box-shadow:0 1px 3px #0000000d}.stat-card .stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;font-size:.78rem;font-weight:600}.stat-card .stat-value{color:var(--text);margin-top:.3rem;font-size:1.9rem;font-weight:700}.stat-card .stat-value.accent{color:var(--primary)}.section-title{margin:0 0 .75rem;font-size:1.05rem}.module-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem;display:grid}.module-card{text-align:left;border-radius:var(--radius);background:var(--card);cursor:pointer;border:none;align-items:center;gap:.9rem;padding:1.1rem 1.2rem;transition:box-shadow .15s,transform .15s;display:flex;box-shadow:0 1px 3px #0000000d}.module-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px #00000017}.module-icon{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.module-card-body{flex:1;min-width:0}.module-card-title{margin-bottom:.35rem;font-size:.98rem;font-weight:700}.module-progress-track{background:#eef0f4;border-radius:4px;height:6px;overflow:hidden}.module-progress-fill{background:var(--primary);border-radius:4px;height:100%}.module-progress-label{color:var(--text-muted);margin-top:.3rem;font-size:.75rem}.activity-list{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:0 1px 3px #0000000d}.attempt-row{border-bottom:1px solid #f0f1f4;justify-content:space-between;align-items:center;padding:1rem 1.3rem;display:flex}.attempt-row:last-child{border-bottom:none}.attempt-score{color:var(--primary);font-size:.9rem;font-weight:700}.badge{border-radius:999px;padding:.25rem .65rem;font-size:.75rem;font-weight:700;display:inline-block}.badge-success{background:var(--success-light);color:var(--success)}.badge-pending{color:#b45309;background:#fef3c7}.quiz-progress{color:var(--text-muted);margin-bottom:.4rem;font-size:.85rem;font-weight:600}.quiz-question{margin:.4rem 0 1.4rem;font-size:1.35rem;line-height:1.4}.quiz-option{text-align:left;border:1.5px solid var(--border);cursor:pointer;background:#fff;border-radius:12px;width:100%;margin-bottom:.65rem;padding:1rem 1.2rem;font-size:.96rem;transition:border-color .15s,background .15s;display:block}.quiz-option:hover{border-color:var(--primary);background:var(--primary-light)}.quiz-option.correct{background:var(--success-light);border-color:var(--success)}.quiz-option.incorrect{background:var(--danger-light);border-color:var(--danger)}.quiz-explanation{background:var(--primary-light);border-left:4px solid var(--primary);border-radius:12px;margin-top:1.1rem;padding:1.2rem}.admin-table{border-collapse:collapse;background:var(--card);border-radius:var(--radius);width:100%;overflow:hidden;box-shadow:0 1px 3px #0000000d}.admin-table th{text-align:left;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);border-bottom:1px solid var(--border);background:#fafbfc;padding:.9rem 1.1rem;font-size:.75rem}.admin-table td{border-bottom:1px solid #f0f1f4;padding:.9rem 1.1rem;font-size:.92rem}.admin-table tr:last-child td{border-bottom:none}.invite-box{background:var(--card);border-radius:var(--radius);margin-bottom:2rem;padding:1.5rem;box-shadow:0 1px 3px #0000000d}.invite-box h3{margin-top:0}.invite-form{gap:.6rem;display:flex}.invite-form input{border:1.5px solid var(--border);border-radius:10px;flex:1;padding:.75rem .9rem;font-size:.95rem}.sidebar{background:linear-gradient(#2554e8 0%,#16309e 100%);border-right:none;flex-direction:column;flex-shrink:0;width:240px;min-height:100vh;padding:1.5rem 1.1rem;display:flex}.sidebar-brand{align-items:center;gap:.6rem;margin-bottom:2rem;padding:0 .4rem;display:flex}.sidebar-logo{width:36px;height:36px;color:var(--primary);background:#fff;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-brand-title{color:#fff;font-size:.95rem;font-weight:700;line-height:1.2}.sidebar-brand-sub{color:#ffffffb3;white-space:nowrap;font-size:.65rem}.sidebar-nav{flex-direction:column;gap:.2rem;display:flex}.sidebar-nav-item{color:#ffffffd9;cursor:pointer;text-align:left;background:0 0;border:none;border-radius:10px;align-items:center;gap:.7rem;width:100%;padding:.7rem .8rem;font-family:inherit;font-size:.9rem;font-weight:500;display:flex}.sidebar-nav-item.active{color:#fff;background:#ffffff26;font-weight:700}.sidebar-nav-item:hover:not(.active){background:#ffffff14}.sidebar-logout{color:#ffffffa6;cursor:pointer;background:0 0;border:none;border-radius:10px;align-items:center;gap:.7rem;padding:.7rem .8rem;font-size:.88rem;display:flex}.sidebar-logout:hover{color:#fff;background:#ffffff14}.main-area{flex:1;min-width:0}.top-bar{border-bottom:1px solid var(--border);background:#fff;justify-content:space-between;align-items:center;padding:1.4rem 2.5rem;display:flex}.top-bar-welcome{color:var(--text-muted);font-size:.8rem}.top-bar-name{font-size:1.2rem;font-weight:700}.top-bar-right{align-items:center;gap:1rem;display:flex}.top-bar-bell{color:#555;background:#f5f6fa;border-radius:10px;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.top-bar-avatar{background:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:38px;height:38px;font-size:.9rem;font-weight:700;display:flex}.main-content{max-width:1000px;padding:1.5rem 2.5rem 3rem}.chat-panel{z-index:1000;background:#fff;border-radius:16px;flex-direction:column;width:380px;height:520px;display:flex;position:fixed;bottom:24px;right:24px;overflow:hidden;box-shadow:0 8px 30px #0000002e}.chat-panel-header{background:var(--primary);color:#fff;justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.chat-panel-title{align-items:center;gap:8px;font-weight:600;display:flex}.chat-panel-close{color:#fff;cursor:pointer;opacity:.85;background:0 0;border:none;align-items:center;display:flex}.chat-panel-close:hover{opacity:1}.chat-panel-messages{background:#f8fafc;flex-direction:column;flex:1;gap:10px;padding:16px;display:flex;overflow-y:auto}.chat-bubble{white-space:pre-wrap;border-radius:12px;max-width:85%;padding:10px 14px;font-size:14px;line-height:1.4}.chat-bubble-assistant{color:#1e293b;background:#e5e9f0;border-bottom-left-radius:4px;align-self:flex-start}.chat-bubble-user{background:var(--primary);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.chat-panel-input-row{background:#fff;border-top:1px solid #e2e8f0;align-items:flex-end;gap:8px;padding:12px;display:flex}.chat-panel-input{resize:none;border:1px solid #cbd5e1;border-radius:10px;flex:1;max-height:100px;padding:8px 10px;font-family:inherit;font-size:14px}.chat-panel-input:focus{border-color:var(--primary);outline:none}.chat-panel-send{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.chat-panel-send:disabled{opacity:.5;cursor:not-allowed}.hero-card{background:linear-gradient(135deg, var(--primary) 0%, #12235e 100%);border-radius:var(--radius);color:#fff;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem;margin-bottom:1.25rem;padding:1.25rem 1.5rem;display:flex}.hero-card-label{opacity:.85;text-transform:uppercase;letter-spacing:.04em;font-size:.8rem;font-weight:600}.hero-card-title{margin:.25rem 0 .4rem;font-size:1.4rem;font-weight:800}.hero-card-sub{opacity:.9;margin:0;font-size:.85rem}.hero-card .btn-primary{color:var(--primary);background:#fff}.hero-card .btn-primary:hover{background:#eef1fb}.dashboard-grid{grid-template-columns:1.3fr 1fr;gap:1rem;margin-bottom:1.5rem;display:grid}@media (width<=800px){.dashboard-grid{grid-template-columns:1fr}}.panel-card{background:var(--card);border-radius:var(--radius);padding:1.1rem 1.25rem;box-shadow:0 1px 3px #0000000d}.panel-card-header{justify-content:space-between;align-items:center;margin-bottom:.75rem;display:flex}.panel-card-title{margin:0;font-size:.95rem;font-weight:700}.panel-card-link{color:var(--primary);cursor:pointer;background:0 0;border:none;font-size:.78rem;font-weight:600}.activity-row-compact{border-bottom:1px solid #f0f1f4;justify-content:space-between;align-items:center;gap:.8rem;padding:.55rem 0;font-size:.85rem;display:flex}.activity-row-compact:last-child{border-bottom:none}.activity-row-compact .score-pill{color:var(--primary);flex-shrink:0;font-size:.76rem;font-weight:700}.activity-row-left{align-items:center;gap:.7rem;min-width:0;display:flex}.activity-row-icon{border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.donut-wrap{flex-wrap:wrap;justify-content:center;align-items:center;gap:1.25rem;display:flex}.donut-legend{flex-direction:column;gap:.4rem;font-size:.78rem;display:flex}.donut-legend-item{align-items:center;gap:.5rem;display:flex}.donut-legend-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.popular-modules-row{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.9rem;display:grid}.popular-module-card{background:var(--card);border-radius:var(--radius);cursor:pointer;text-align:left;border:none;padding:.9rem 1rem;transition:box-shadow .15s,transform .15s;box-shadow:0 1px 3px #0000000d}.popular-module-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px #00000017}.popular-module-card .module-icon{width:36px;height:36px;margin-bottom:.6rem}.popular-module-card-title{margin-bottom:.55rem;font-size:.85rem;font-weight:700}.popular-module-card-footer{align-items:center;gap:.6rem;display:flex}.popular-module-card-footer .module-progress-track{flex:1;margin:0}.popular-module-card-footer .module-progress-pct{color:var(--text-muted);flex-shrink:0;font-size:.76rem;font-weight:700}.sidebar-cta-card{border-radius:var(--radius);color:#fff;background:#ffffff1a;border:1px solid #ffffff26;margin-top:auto;margin-bottom:.75rem;padding:.9rem}.sidebar-cta-title{margin-bottom:.25rem;font-size:.8rem;font-weight:700;line-height:1.3}.sidebar-cta-text{opacity:.8;margin-bottom:0;font-size:.68rem;line-height:1.35}.progress-ring-card{background:var(--card);border-radius:var(--radius);flex-wrap:wrap;align-items:center;gap:1.5rem;margin-bottom:1.75rem;padding:1.5rem;display:flex;box-shadow:0 1px 3px #0000000d}.progress-ring-number{fill:var(--text);font-size:2rem;font-weight:800}.progress-ring-caption{fill:var(--text-muted);font-size:.7rem}.progress-ring-stats{flex-wrap:wrap;gap:2rem;display:flex}.progress-ring-stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;font-size:.78rem;font-weight:600}.progress-ring-stat-value{color:var(--text);margin-top:.2rem;font-size:1.6rem;font-weight:700}.trend-chart-card{background:var(--card);border-radius:var(--radius);margin-bottom:1.75rem;padding:1.5rem;box-shadow:0 1px 3px #0000000d}.trend-chart-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:1rem;font-size:.75rem;font-weight:700}.trend-chart-wrap{position:relative}.trend-tooltip{background:var(--text);color:#fff;pointer-events:none;white-space:nowrap;z-index:5;border-radius:8px;padding:.5rem .7rem;font-size:.75rem;position:absolute;transform:translate(-50%,-115%)}.trend-tooltip strong{color:#93c5fd}.trend-dot{cursor:pointer}.mobile-menu-btn{cursor:pointer;color:var(--text,#111);background:0 0;border:none;margin-right:.75rem;padding:.4rem;display:none}.mobile-menu-close,.sidebar-overlay{display:none}@media (width<=768px){.sidebar{z-index:1000;width:240px;max-width:80vw;height:100vh;transition:transform .25s;position:fixed;top:0;left:0;overflow-y:auto;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-brand{position:relative}.mobile-menu-close{color:#fff;cursor:pointer;background:#ffffff26;border:none;border-radius:999px;width:32px;height:32px;display:block;position:absolute;top:0;right:0}.main-area{width:100%;margin-left:0}.mobile-menu-btn{justify-content:center;align-items:center;display:inline-flex}.sidebar-overlay.open{z-index:999;background:#0006;display:block;position:fixed;inset:0}.top-bar{padding-left:1rem}}