:root{--bg:#0b0f19;--surface:#151b2b;--primary:#38bdf8;--primary-rgb:56,189,248;--success:#00e676;--warning:#ffb300;--danger:#ff1744;--border:rgba(255,255,255,0.08);--card-bg:#121315;--sorter-h:68px;--grp-row-h:32px;}*{box-sizing:border-box;margin:0;padding:0;}body{background:var(--bg);color:#f1f5f9;font-family:'Outfit',sans-serif;line-height:1.6;margin:0;padding:0;display:flex;min-height:100vh;overflow-x:hidden;background-image:radial-gradient(circle at 5% 5%,rgba(56,189,248,0.05) 0%,transparent 35%),radial-gradient(circle at 95% 95%,rgba(16,185,129,0.03) 0%,transparent 35%);}::-webkit-scrollbar{width:8px;height:8px;}::-webkit-scrollbar-track{background:rgba(255,255,255,0.01);}::-webkit-scrollbar-thumb{background:rgba(56,189,248,0.2);border-radius:99px;border:2px solid var(--bg);}::-webkit-scrollbar-thumb:hover{background:rgba(56,189,248,0.4);}.sidebar{width:250px;background:rgba(8,12,28,0.4);border-right:1px solid rgba(255,255,255,0.05);backdrop-filter:blur(20px) saturate(150%);-webkit-backdrop-filter:blur(20px) saturate(150%);display:flex;flex-direction:column;padding:2rem 1.25rem;position:fixed;top:0;bottom:0;left:0;z-index:100;transition:background 0.3s ease;box-shadow:inset 0 1px 1px rgba(255,255,255,0.02),4px 0 24px rgba(0,0,0,0.25);font-family:'Inter',sans-serif;overflow-x:hidden;overflow-y:auto;will-change:background;}.sidebar::-webkit-scrollbar{width:4px;}.sidebar::-webkit-scrollbar-track{background:rgba(255,255,255,0.02);border-radius:99px;}.sidebar::-webkit-scrollbar-thumb{background:rgba(56,189,248,0.25);border-radius:99px;border:1px solid rgba(255,255,255,0.04);}.sidebar::-webkit-scrollbar-thumb:hover{background:rgba(56,189,248,0.5);}.main-content{margin-left:250px;flex:1;padding:3rem 4rem;min-width:0;}.main-content.expanded{margin-left:68px;}.sidebar-toggle{background:none;border:none;cursor:pointer;color:#94a3b8;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease;padding:0.4rem;border-radius:50%;}.sidebar-toggle:hover{background:rgba(255,255,255,0.05);color:#fff;}.sidebar.collapsed{width:68px;padding:2rem 0.5rem;background:rgba(6,8,16,0.6);overflow:visible !important;overflow-x:visible !important;}.sidebar.collapsed:hover{background:rgba(8,12,28,0.85);border-right-color:rgba(255,255,255,0.08);box-shadow:inset 0 1px 1px rgba(255,255,255,0.03),6px 0 30px rgba(0,0,0,0.4);}.sidebar.collapsed .brand-text,.sidebar.collapsed .section-header,.sidebar.collapsed .nav-text,.sidebar.collapsed .sidebar-stat-row,.sidebar.collapsed .beginner-card{display:none !important;}.sidebar.collapsed .brand-container{flex-direction:column;gap:1.25rem !important;align-items:center;justify-content:center;}.sidebar.collapsed .nav-item{justify-content:center;padding:0.5rem 0;border-radius:12px;position:relative;}.sidebar.collapsed .nav-icon{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;transition:all 0.3s cubic-bezier(0.16,1,0.3,1);font-size:1.15rem;}.sidebar.collapsed .nav-item:hover .nav-icon{background:rgba(255,255,255,0.06);transform:scale(1.05);}.sidebar.collapsed .active-nav .nav-icon{background:linear-gradient(135deg,rgba(56,189,248,0.15),rgba(16,185,129,0.15));color:var(--primary) !important;border:1px solid rgba(56,189,248,0.25);box-shadow:0 0 12px rgba(56,189,248,0.2);}.sidebar.collapsed .nav-item::after{content:attr(data-tooltip);position:absolute;left:calc(100% + 15px);top:50%;transform:translateY(-50%) scale(0.95);background:rgba(7,10,22,0.98);border:1px solid rgba(56,189,248,0.25);color:#f1f5f9;padding:0.5rem 0.8rem;border-radius:8px;font-size:0.75rem;font-weight:600;font-family:'Outfit',sans-serif;white-space:nowrap;opacity:0;pointer-events:none;transition:all 0.15s cubic-bezier(0.4,0,0.2,1);box-shadow:0 10px 25px -5px rgba(0,0,0,0.5);z-index:999999;}.sidebar.collapsed .nav-item::before{content:'';position:absolute;left:calc(100% + 9px);top:50%;transform:translateY(-50%);border-width:4px 6px 4px 0;border-style:solid;border-color:transparent rgba(56,189,248,0.25) transparent transparent;opacity:0;pointer-events:none;transition:all 0.15s cubic-bezier(0.4,0,0.2,1);z-index:999999;}.sidebar.collapsed .nav-item:hover::after{opacity:1;transform:translateY(-50%) scale(1);}.sidebar.collapsed .nav-item:hover::before{opacity:1;}.active-nav{background:linear-gradient(135deg,rgba(56,189,248,0.08),rgba(16,185,129,0.03)) !important;color:var(--primary) !important;border-left:3px solid var(--primary) !important;border-top:1px solid rgba(56,189,248,0.15) !important;border-bottom:1px solid rgba(56,189,248,0.15) !important;border-right:1px solid rgba(56,189,248,0.15) !important;box-shadow:0 4px 20px rgba(56,189,248,0.05);cursor:default;}#mobileStudentModeBtn{animation:smShimmer 2.8s ease-in-out infinite;}0%{background-position:-200% 0;}60%{background-position:200% 0;}100%{background-position:200% 0;}.sm-switch{width:36px;height:19px;background:rgba(255,255,255,0.08);border-radius:99px;position:relative;transition:background 0.25s ease,box-shadow 0.25s ease;flex-shrink:0;border:1px solid rgba(255,255,255,0.1);}.sm-switch::after{content:'';position:absolute;top:2px;left:2px;width:13px;height:13px;background:#64748b;border-radius:50%;transition:transform 0.25s cubic-bezier(0.4,0,0.2,1),background 0.25s ease;}0%{box-shadow:0 0 0 0 rgba(139,92,246,0.5),0 0 20px rgba(139,92,246,0.2);}70%{box-shadow:0 0 0 8px rgba(139,92,246,0),0 0 20px rgba(139,92,246,0.1);}100%{box-shadow:0 0 0 0 rgba(139,92,246,0),0 0 20px rgba(139,92,246,0.2);}#sm-popover{position:fixed;z-index:999999;max-width:320px;min-width:260px;background:rgba(8,10,22,0.97);border:1px solid rgba(139,92,246,0.35);border-radius:12px;padding:0.85rem 1rem;box-shadow:0 12px 40px rgba(0,0,0,0.7),0 0 0 1px rgba(139,92,246,0.08);backdrop-filter:blur(16px);pointer-events:none;opacity:0;transform:translateY(4px) scale(0.97);transition:opacity 0.18s ease,transform 0.18s ease;font-family:'Inter',sans-serif;}#sm-popover.visible{opacity:1;transform:translateY(0) scale(1);pointer-events:none;}.header{padding-bottom:1.25rem;margin-bottom:2rem;position:relative;}.header-accent{position:absolute;bottom:-1px;left:0;width:120px;height:2px;background:linear-gradient(90deg,#38bdf8,#00d68f,transparent);box-shadow:0 0 10px rgba(56,189,248,0.5);}@keyframes trPulse{0%,100%{opacity:1;}50%{opacity:0.35;}}.header-nav-pills{display:flex;flex-wrap:wrap;align-items:center;gap:0.35rem;background:rgba(6,9,20,0.72);border:1px solid rgba(255,255,255,0.08);border-radius:14px;padding:0.35rem;margin-bottom:0.8rem;backdrop-filter:blur(12px);box-shadow:0 1px 8px rgba(0,0,0,0.35),inset 0 1px 0 rgba(255,255,255,0.03);overflow-x:auto;overflow-y:visible;-webkit-overflow-scrolling:touch;scrollbar-width:none;max-width:100%;width:fit-content;}.header-nav-pills::-webkit-scrollbar{display:none;}.nav-pill-btn{display:inline-flex;align-items:center;gap:0.4rem;padding:0.38rem 0.8rem;border-radius:10px;font-family:'DM Sans','Outfit',sans-serif;font-size:0.72rem;font-weight:600;letter-spacing:0.03em;color:#64748b;text-decoration:none;transition:all 0.18s cubic-bezier(0.4,0,0.2,1);white-space:nowrap;flex-shrink:0;position:relative;background:rgba(255,255,255,0.025);border:1px solid transparent;}.nav-pill-btn .pill-icon{opacity:0.75;flex-shrink:0;transition:opacity 0.18s;}.nav-pill-btn .pill-label{display:inline;}.nav-pill-btn:hover{color:#cbd5e1;background:rgba(255,255,255,0.05);}.nav-pill-btn:hover .pill-icon{opacity:1;}.nav-pill-btn.active{background:rgba(56,189,248,0.1);color:#38bdf8;border:1px solid rgba(56,189,248,0.22);box-shadow:0 1px 6px rgba(56,189,248,0.12),inset 0 1px 0 rgba(56,189,248,0.08);pointer-events:none;cursor:default;}.nav-pill-btn.active .pill-icon{opacity:1;}.nav-pill-sep{width:1px;height:14px;background:rgba(255,255,255,0.06);margin:0 1px;flex-shrink:0;}@media (max-width:600px){.header-nav-pills{width:100%;justify-content:flex-start;gap:0.4rem;box-sizing:border-box;padding:0.45rem;}.nav-pill-btn{flex:0 1 auto;justify-content:center;padding:0.38rem 0.7rem;gap:0;}.nav-pill-btn .pill-label{display:none;}.nav-pill-btn .pill-icon{width:1.2rem;height:1.2rem;opacity:0.65;}.nav-pill-btn.active .pill-icon{opacity:1;}.nav-pill-sep{display:none;}}@media (min-width:601px) and (max-width:860px){.nav-pill-btn{padding:0.28rem 0.55rem;font-size:0.68rem;gap:0.3rem;}}h1{font-family:'Outfit',sans-serif;font-size:2.0rem;font-weight:800;letter-spacing:-0.75px;text-transform:uppercase;background:linear-gradient(135deg,#fff,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;}.subtitle{font-size:0.83rem;color:#64748b;letter-spacing:0.03em;margin-top:0.15rem;font-family:'Outfit',sans-serif;}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(380px,100%),1fr));gap:2rem;}#cards-grid.dashboard-grid{grid-template-columns:repeat(auto-fill,minmax(min(760px,100%),1fr));gap:2rem;}:root{--fc-green:#00d68f;--fc-green-bg:rgba(0,214,143,0.08);--fc-green-border:rgba(0,214,143,0.18);--fc-red:#ff4d6d;--fc-red-bg:rgba(255,77,109,0.08);--fc-red-border:rgba(255,77,109,0.18);--fc-amber:#f59e0b;--fc-amber-bg:rgba(245,158,11,0.08);--fc-blue:#38b2f0;--fc-blue-bg:rgba(56,178,240,0.08);--fc-blue-border:rgba(56,178,240,0.18);--fc-surface-1:#0b0e1a;--fc-border:rgba(255,255,255,0.09);--fc-border-hover:rgba(255,255,255,0.16);--fc-text-primary:#eef2f8;--fc-text-secondary:#aabfd4;--fc-text-muted:#7a92ab;--fc-mono:'DM Mono',monospace;--fc-sans:'DM Sans',sans-serif;--fc-display:'Syne',sans-serif;--fc-radius:14px;}.card{background:var(--fc-surface-1);border:1px solid var(--fc-border);border-top:none;border-radius:var(--fc-radius);overflow:hidden;transition:border-color 0.3s ease,box-shadow 0.3s ease,transform 0.3s ease;display:flex;flex-direction:column;position:relative;}.card::before{content:'';display:block;height:2px;background:var(--ch-accent,linear-gradient(90deg,#38b2f0,#00d68f));}.card:hover{border-color:rgba(255,255,255,0.18);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,255,255,0.06),0 8px 32px rgba(0,0,0,0.5),0 0 40px var(--ch-glow,rgba(56,178,240,0.18)),0 0 80px var(--ch-glow-wide,rgba(56,178,240,0.08));}.fc-head{display:flex;align-items:flex-start;justify-content:space-between;gap:0.75rem;padding:1rem 1.1rem 0.6rem;}.fc-head-id{display:flex;flex-direction:column;gap:0.15rem;min-width:0;}.fc-sym{font-family:var(--fc-display);font-size:1.15rem;font-weight:700;color:var(--fc-text-primary);letter-spacing:0.01em;}.fc-name{font-family:var(--fc-sans);font-size:0.7rem;color:var(--fc-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px;}.fc-price-block{display:flex;flex-direction:column;align-items:flex-end;gap:0.15rem;flex-shrink:0;}.fc-price{font-family:var(--fc-mono);font-size:1.05rem;font-weight:600;color:var(--fc-text-primary);}.fc-change{font-family:var(--fc-mono);font-size:0.75rem;font-weight:700;padding:0.1rem 0.4rem;border-radius:6px;}.fc-change.up{color:var(--fc-green);background:var(--fc-green-bg);}.fc-change.down{color:var(--fc-red);background:var(--fc-red-bg);}.fc-change.flat{color:var(--fc-text-muted);background:rgba(255,255,255,0.04);}.fc-badges{display:flex;flex-wrap:wrap;gap:0.4rem;padding:0 1.1rem 0.85rem;}.fc-badge{font-family:var(--fc-sans);font-size:0.62rem;font-weight:700;letter-spacing:0.04em;text-transform:uppercase;padding:0.24rem 0.5rem;border-radius:20px;border:1px solid transparent;white-space:nowrap;}.fc-badge.badge-green{color:var(--fc-green);background:var(--fc-green-bg);border-color:var(--fc-green-border);}.fc-badge.badge-red{color:var(--fc-red);background:var(--fc-red-bg);border-color:var(--fc-red-border);}.fc-badge.badge-amber{color:var(--fc-amber);background:var(--fc-amber-bg);border-color:rgba(245,158,11,0.18);}.fc-badge.badge-blue{color:var(--fc-blue);background:var(--fc-blue-bg);border-color:var(--fc-blue-border);}.fc-badge.badge-mute{color:var(--fc-text-muted);background:rgba(255,255,255,0.04);border-color:var(--fc-border);}.fc-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:0.7rem 0.5rem;padding:0.85rem 1.1rem;border-top:1px solid var(--fc-border);}.fc-metric{display:flex;flex-direction:column;gap:0.2rem;min-width:0;}.fc-m-lbl{font-family:var(--fc-sans);font-size:0.58rem;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;color:var(--fc-text-muted);}