:root{--sidebar-width:260px;--sidebar-bg:#0f172a;--sidebar-item-hover:rgba(34, 197, 94, 0.08);--sidebar-item-active:rgba(34, 197, 94, 0.12);--primary-color:#22c55e;--text-primary:#e5e7eb;--text-secondary:#9ca3af;--border-color:rgba(34, 197, 94, 0.1)}.modern-sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;background:var(--sidebar-bg);border-right:1px solid var(--border-color);z-index:1100;display:flex;flex-direction:column;transition:transform .3s cubic-bezier(.4, 0, .2, 1)}.sidebar-logo{padding:1.2rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:center}.sidebar-logo a{display:flex;align-items:center}.sidebar-logo-text{font-size:1.375rem;font-weight:600;color:#fff;letter-spacing:-.02em}.sidebar-profile{padding:.75rem 1rem;border-bottom:1px solid var(--border-color)}.sidebar-profile-link{display:flex;align-items:flex-start;gap:.625rem;padding:.5rem .625rem;border-radius:6px;text-decoration:none;transition:background .2s ease}.sidebar-profile-link:hover{background:var(--sidebar-item-hover)}.sidebar-profile-avatar{width:40px;height:40px;border-radius:50%;border:2px solid var(--primary-color);flex-shrink:0;object-fit:cover}.sidebar-profile-avatar.is-pro{border-color:#ffab00}.sidebar-profile-info{flex:1;min-width:0}.sidebar-profile-username{color:var(--text-primary);font-size:.875rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-profile-sub{display:inline-flex;align-items:center;gap:.35rem;margin-top:1px;font-size:.7rem;cursor:pointer;border-radius:3px;padding:1px 3px;margin-left:-3px;transition:background .15s ease;white-space:nowrap}.sidebar-profile-sub:hover{background:rgba(255,255,255,.06)}.sidebar-profile-sub:hover .sidebar-profile-global-rank{color:var(--primary-color)}.sidebar-profile-rank{display:inline-flex;align-items:center;gap:.2rem;color:var(--primary-color);font-weight:500;white-space:nowrap}.sidebar-profile-rank .ti-crown{font-size:.6rem}.sidebar-profile-global-rank{color:var(--text-secondary);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:600}.sidebar-profile-evolution{color:#22c55e;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:700;font-size:.6rem}.sidebar-profile-xp{margin-top:6px;display:flex;flex-direction:column;gap:3px}.sidebar-profile-xp-bar{position:relative;width:100%;height:4px;background:rgba(255,255,255,.06);border-radius:999px;overflow:hidden}.sidebar-profile-xp-fill{height:100%;background:linear-gradient(90deg,#22c55e 0,#16a34a 60%,#15803d 100%);border-radius:inherit;box-shadow:0 0 6px rgba(34,197,94,.45);transition:width .6s cubic-bezier(.4, 0, .2, 1)}.sidebar-profile-xp-label{display:flex;align-items:baseline;gap:3px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.62rem;color:var(--text-secondary);line-height:1}.sidebar-profile-xp-unit{font-weight:700;color:#22c55e;margin-left:2px}.sidebar-profile-streak{flex-shrink:0;text-decoration:none;border-radius:6px;transition:transform .15s ease}.sidebar-profile-streak:hover{transform:scale(1.1)}.sidebar-profile-streak-current{display:flex;align-items:center;gap:2px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:1rem;font-weight:700;color:var(--text-secondary);background:rgba(255,255,255,.05);padding:.25rem .5rem;border-radius:6px;line-height:1}.sidebar-profile-streak-current.active{color:#f59e0b;background:linear-gradient(135deg,rgba(245,158,11,.18),rgba(239,68,68,.12));box-shadow:0 0 10px rgba(245,158,11,.15)}.sidebar-profile-streak-current .ti-flame{font-size:1.1rem}.sidebar-profile-streak-current.active .ti-flame{filter:drop-shadow(0 0 3px rgba(245, 158, 11, .6));animation:flameGlow 2s ease-in-out infinite}@keyframes flameGlow{0%,100%{filter:drop-shadow(0 0 3px rgba(245, 158, 11, .6))}50%{filter:drop-shadow(0 0 6px rgba(239, 68, 68, .8))}}.sidebar-menu{flex:1;overflow-y:auto;overflow-x:hidden;padding:1rem 0}.sidebar-menu::-webkit-scrollbar{width:6px}.sidebar-menu::-webkit-scrollbar-track{background:0 0}.sidebar-menu::-webkit-scrollbar-thumb{background:rgba(34,197,94,.3);border-radius:3px}.sidebar-menu::-webkit-scrollbar-thumb:hover{background:rgba(34,197,94,.5)}.menu-item{margin:.25rem .625rem}.menu-link{display:flex;align-items:center;gap:.75rem;padding:.625rem .875rem;color:var(--text-secondary);text-decoration:none;border-radius:6px;transition:all .2s ease;font-size:.875rem;font-weight:400;position:relative;min-height:42px}.menu-link:hover{background:var(--sidebar-item-hover);color:var(--text-primary)}.menu-link:active{transform:scale(.98)}.menu-item.active .menu-link{background:var(--sidebar-item-active);color:var(--primary-color);font-weight:500}.menu-item.active .menu-link::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:60%;background:var(--primary-color);border-radius:0 3px 3px 0}.menu-icon{font-size:1.25rem;flex-shrink:0;width:22px;text-align:center}.menu-item.active .menu-icon{color:var(--primary-color)}.menu-header{padding:1rem 1.5rem .5rem;font-size:.7rem;font-weight:500;letter-spacing:.8px;text-transform:uppercase;color:#6b7280;margin-top:.5rem}.menu-header:first-child{margin-top:0}.notification-dot{display:inline-block;width:8px;height:8px;background:#ff3b30;border-radius:50%;margin-left:auto;flex-shrink:0;box-shadow:0 0 0 2px rgba(255,59,48,.2);animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.1)}}.tooltip{--bs-tooltip-zindex:1110}.menu-item-recommended .menu-link{background:linear-gradient(90deg,rgba(0,212,170,.08),transparent);border-left:2px solid #00d4aa}.recommended-icon{color:#00d4aa!important;animation:recommendedPulse 2s ease-in-out infinite}@keyframes recommendedPulse{0%,100%{opacity:1}50%{opacity:.6}}.menu-item-disabled .menu-link{opacity:.5;cursor:not-allowed;pointer-events:none}.menu-link .ti-lock{margin-left:auto;font-size:1rem;opacity:.6}.text-success{color:#28c76f!important}.sidebar-footer{padding:1rem;border-top:1px solid var(--border-color)}.sidebar-footer .btn{background:rgba(34,197,94,.08);border:1px solid rgba(34,197,94,.2);color:var(--text-primary);padding:.5rem;border-radius:8px;font-size:.875rem;font-weight:400;transition:all .2s ease;text-decoration:none;display:flex;align-items:center;justify-content:center}.sidebar-footer .btn:hover{background:rgba(34,197,94,.15);border-color:rgba(34,197,94,.4)}.sidebar-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:1099;opacity:0;visibility:hidden;transition:all .3s ease;backdrop-filter:blur(2px)}.sidebar-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.2);border-radius:8px;color:var(--primary-color);font-size:1.5rem;cursor:pointer;transition:all .2s ease}.sidebar-toggle:hover{background:rgba(34,197,94,.2);border-color:rgba(34,197,94,.4);box-shadow:0 2px 8px rgba(34,197,94,.3)}.sidebar-toggle:active{transform:scale(.95)}@media (max-width:1199.98px){.modern-sidebar{transform:translateX(-100%);box-shadow:2px 0 12px rgba(0,0,0,.3)}.sidebar-toggle{display:flex}body.sidebar-open .modern-sidebar{transform:translateX(0)}body.sidebar-open .sidebar-overlay{opacity:1;visibility:visible}body.sidebar-open{overflow:hidden}}@media (min-width:1200px){.page-content{margin-left:var(--sidebar-width)}}.lang-selector-btn{padding:.35rem .6rem;font-size:.8rem;border-color:rgba(255,255,255,.15);color:var(--text-secondary)}.lang-selector-btn:hover{border-color:rgba(34,197,94,.4);color:var(--text-primary)}.lang-selector-btn .fi{font-size:1rem;vertical-align:middle}.page-content,.sidebar-overlay{transition:all .3s cubic-bezier(.4, 0, .2, 1)}.menu-cta-join{background:linear-gradient(135deg,rgba(74,222,128,.15) 0,rgba(22,163,74,.1) 100%);border:1px solid rgba(74,222,128,.3)}.menu-cta-join .menu-cta-icon{width:32px;height:32px;background:linear-gradient(135deg,#4ade80 0,#16a34a 100%);flex-shrink:0}.menu-cta-join .menu-cta-icon i{color:#fff;font-size:1rem}.menu-cta-join .menu-cta-title{color:#4ade80}.menu-cta-join .menu-cta-subtitle{font-size:.7rem}.menu-cta-join .ti-chevron-right{color:#4ade80}