@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Fredoka:wght@400;500;600;700&display=swap";
:root{--primary:#6c5ce7;--primary-light:#a29bfe;--primary-dark:#4a3ac7;--primary-glow:#6c5ce766;--secondary:#ff6b35;--secondary-light:#ff9f6c;--secondary-dark:#e5531a;--accent:#00d2ff;--accent-light:#66e3ff;--accent-dark:#00a3cc;--success:#00e676;--success-light:#69f0ae;--success-dark:#00c853;--warning:#ffd600;--warning-light:#ffea00;--warning-dark:#ffc107;--danger:#ff1744;--danger-light:#ff5252;--danger-dark:#d50000;--bg-primary:#0f0e17;--bg-secondary:#1a1929;--bg-tertiary:#232236;--bg-card:#1e1d30;--bg-card-hover:#282744;--bg-input:#1a1929;--bg-modal:#0f0e17f2;--surface-1:#1e1d30;--surface-2:#282744;--surface-3:#322f52;--text-primary:#fffffe;--text-secondary:#a7a9be;--text-muted:#6b6d84;--text-accent:#00d2ff;--border:#2d2b45;--border-hover:#3d3b5e;--border-focus:#6c5ce7;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 16px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow-primary:0 0 20px #6c5ce74d;--shadow-glow-accent:0 0 20px #00d2ff4d;--shadow-glow-success:0 0 20px #00e6764d;--shadow-glow-warning:0 0 20px #ffd6004d;--gradient-primary:linear-gradient(135deg, #6c5ce7, #a29bfe);--gradient-secondary:linear-gradient(135deg, #ff6b35, #ff9f6c);--gradient-accent:linear-gradient(135deg, #00d2ff, #00e676);--gradient-fire:linear-gradient(135deg, #ff6b35, #ffd600);--gradient-legendary:linear-gradient(135deg, gold, #ff6b35, #ff1744);--gradient-epic:linear-gradient(135deg, #a855f7, #ec4899);--gradient-bg:linear-gradient(180deg, #0f0e17 0%, #1a1929 100%);--gradient-card:linear-gradient(145deg, #1e1d30cc, #28274466);--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--font-display:"Fredoka", sans-serif;--font-body:"Outfit", sans-serif;--font-size-xs:.75rem;--font-size-sm:.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:1.875rem;--font-size-4xl:2.25rem;--font-size-5xl:3rem;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s ease;--transition-bounce:.5s cubic-bezier(.175, .885, .32, 1.275);--z-dropdown:100;--z-modal:200;--z-toast:300;--z-tooltip:400}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-body);color:var(--text-primary);background:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-weight:400;line-height:1.6;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(circle at 20% 20%,#6c5ce714 0%,#0000 50%),radial-gradient(circle at 80% 80%,#00d2ff0f 0%,#0000 50%),radial-gradient(circle,#ff6b350a 0%,#0000 50%);width:100%;height:100%;position:fixed;top:0;left:0}a{color:var(--accent);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--accent-light)}img{max-width:100%;display:block}button{cursor:pointer;font-family:var(--font-body);background:0 0;border:none;outline:none}input,select,textarea{font-family:var(--font-body);border:none;outline:none}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;line-height:1.2}.container{width:100%;max-width:1200px;padding:0 var(--space-4);margin:0 auto}.container-sm{max-width:640px}.container-md{max-width:768px}.container-lg{max-width:1024px}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.items-start{align-items:flex-start}.items-end{align-items:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.justify-end{justify-content:flex-end}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-5{gap:var(--space-5)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.grid{display:grid}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.text-center{text-align:center}.text-right{text-align:right}.text-xs{font-size:var(--font-size-xs)}.text-sm{font-size:var(--font-size-sm)}.text-base{font-size:var(--font-size-base)}.text-lg{font-size:var(--font-size-lg)}.text-xl{font-size:var(--font-size-xl)}.text-2xl{font-size:var(--font-size-2xl)}.text-3xl{font-size:var(--font-size-3xl)}.text-4xl{font-size:var(--font-size-4xl)}.text-5xl{font-size:var(--font-size-5xl)}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.font-display{font-family:var(--font-display)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-accent{color:var(--accent)}.text-success{color:var(--success)}.text-warning{color:var(--warning)}.text-danger{color:var(--danger)}.text-gradient{background:var(--gradient-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-6);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:all var(--transition-normal);position:relative;overflow:hidden}.card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md);transform:translateY(-2px)}.card:before{content:"";background:linear-gradient(90deg,#0000,#6c5ce74d,#0000);height:1px;position:absolute;top:0;left:0;right:0}.card-glow{box-shadow:var(--shadow-glow-primary)}.card-glow-accent{box-shadow:var(--shadow-glow-accent)}.btn{justify-content:center;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);border-radius:var(--radius-md);font-weight:600;font-size:var(--font-size-sm);transition:all var(--transition-normal);white-space:nowrap;display:inline-flex;position:relative;overflow:hidden}.btn:after{content:"";background:#ffffff1a;border-radius:50%;width:0;height:0;transition:width .5s,height .5s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.btn:active:after{width:300px;height:300px}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-glow-primary)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px #6c5ce780}.btn-secondary{background:var(--surface-2);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--surface-3);border-color:var(--border-hover)}.btn-accent{background:var(--gradient-accent);color:var(--bg-primary);font-weight:700}.btn-accent:hover{box-shadow:var(--shadow-glow-accent);transform:translateY(-2px)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-dark)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover{background:var(--surface-1);color:var(--text-primary)}.btn-lg{padding:var(--space-4) var(--space-8);font-size:var(--font-size-base);border-radius:var(--radius-lg)}.btn-sm{padding:var(--space-2) var(--space-4);font-size:var(--font-size-xs)}.btn-icon{padding:var(--space-3);border-radius:var(--radius-md)}.btn-full{width:100%}.btn-google{color:#333;background:#fff;border:1px solid #ddd;font-weight:600}.btn-google:hover{box-shadow:var(--shadow-md);background:#f5f5f5;transform:translateY(-1px)}.input-group{gap:var(--space-2);flex-direction:column;display:flex}.input-label{font-size:var(--font-size-sm);color:var(--text-secondary);font-weight:500}.input{padding:var(--space-3) var(--space-4);background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--font-size-base);transition:all var(--transition-fast)}.input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #6c5ce726}.input::placeholder{color:var(--text-muted)}.input-error{border-color:var(--danger)!important}.error-text{color:var(--danger);font-size:var(--font-size-xs)}.badge{align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:600;display:inline-flex}.badge-primary{color:var(--primary-light);background:#6c5ce733}.badge-success{color:var(--success);background:#00e67633}.badge-warning{color:var(--warning);background:#ffd60033}.badge-danger{color:var(--danger);background:#ff174433}.badge-legendary{background:var(--gradient-legendary);color:#fff;animation:2s infinite shimmer}.avatar{border-radius:var(--radius-full);border:2px solid var(--border);width:40px;height:40px;font-size:var(--font-size-lg);background:var(--surface-2);flex-shrink:0;justify-content:center;align-items:center;display:flex;overflow:hidden}.avatar-sm{width:32px;height:32px;font-size:var(--font-size-sm)}.avatar-lg{width:56px;height:56px;font-size:var(--font-size-2xl)}.avatar-xl{width:80px;height:80px;font-size:var(--font-size-4xl)}.avatar-2xl{width:120px;height:120px;font-size:var(--font-size-5xl)}.avatar img{object-fit:cover;width:100%;height:100%}.avatar-champion{border:3px solid var(--warning);box-shadow:var(--shadow-glow-warning);animation:2s ease-in-out infinite champion-glow}.progress{background:var(--surface-1);border-radius:var(--radius-full);width:100%;height:8px;overflow:hidden}.progress-bar{border-radius:var(--radius-full);background:var(--gradient-primary);height:100%;transition:width var(--transition-slow);position:relative}.progress-bar:after{content:"";background:linear-gradient(90deg,#0000,#fff3,#0000);animation:2s infinite progress-shine;position:absolute;inset:0}.progress-bar-success{background:var(--gradient-accent)}.progress-bar-fire{background:var(--gradient-fire)}.progress-bar-legendary{background:var(--gradient-legendary)}.progress-lg{height:12px}.progress-sm{height:4px}.divider{align-items:center;gap:var(--space-4);color:var(--text-muted);font-size:var(--font-size-sm);display:flex}.divider:before,.divider:after{content:"";background:var(--border);flex:1;height:1px}.toast{bottom:var(--space-6);right:var(--space-6);padding:var(--space-4) var(--space-6);background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:var(--z-toast);align-items:center;gap:var(--space-3);animation:.3s slide-up;display:flex;position:fixed}.modal-overlay{background:var(--bg-modal);width:100%;height:100%;z-index:var(--z-modal);padding:var(--space-4);justify-content:center;align-items:center;animation:.2s fade-in;display:flex;position:fixed;top:0;left:0}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--space-8);width:100%;max-width:500px;max-height:90vh;animation:.3s modal-pop;overflow-y:auto}.xp-bar-container{align-items:center;gap:var(--space-3);display:flex}.level-badge{border-radius:var(--radius-full);background:var(--gradient-primary);width:36px;height:36px;font-family:var(--font-display);font-weight:700;font-size:var(--font-size-sm);box-shadow:var(--shadow-glow-primary);justify-content:center;align-items:center;display:flex}.streak-fire{align-items:center;gap:var(--space-1);font-family:var(--font-display);color:var(--warning);font-weight:700;display:inline-flex}.streak-fire .fire-icon{font-size:1.2em;animation:.5s infinite alternate fire-flicker}.champion-crown{position:relative}.champion-crown:before{content:"👑";font-size:16px;animation:2s ease-in-out infinite crown-float;position:absolute;top:-12px;left:50%;transform:translate(-50%)}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes slide-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slide-down{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes slide-in-right{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}@keyframes modal-pop{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes shimmer{0%,to{opacity:1}50%{opacity:.7}}@keyframes progress-shine{0%{transform:translate(-100%)}to{transform:translate(100%)}}@keyframes fire-flicker{0%{transform:scale(1)rotate(-5deg)}to{transform:scale(1.1)rotate(5deg)}}@keyframes champion-glow{0%,to{box-shadow:0 0 10px #ffd6004d}50%{box-shadow:0 0 25px #ffd60099}}@keyframes crown-float{0%,to{transform:translate(-50%)translateY(0)}50%{transform:translate(-50%)translateY(-4px)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes bounce-in{0%{transform:scale(0)}50%{transform:scale(1.1)}to{transform:scale(1)}}@keyframes confetti-fall{0%{opacity:1;transform:translateY(-100vh)rotate(0)}to{opacity:0;transform:translateY(100vh)rotate(720deg)}}.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}.spinner-lg{border-width:4px;width:48px;height:48px}@keyframes skeleton-shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg, var(--surface-1) 0%, var(--surface-2) 50%, var(--surface-1) 100%);border-radius:var(--radius-md);background-size:200% 100%;border:1px solid #ffffff0a;animation:1.6s ease-in-out infinite skeleton-shimmer}.skeleton-text{border-radius:var(--radius-sm);height:14px;margin-bottom:var(--space-2)}.skeleton-title{border-radius:var(--radius-sm);width:60%;height:24px;margin-bottom:var(--space-3)}.skeleton-avatar{border-radius:var(--radius-full);flex-shrink:0;width:48px;height:48px}.skeleton-avatar-lg{border-radius:var(--radius-full);width:64px;height:64px}.skeleton-btn{border-radius:var(--radius-md);width:120px;height:42px}.skeleton-badge{border-radius:var(--radius-full);width:70px;height:24px}.skeleton-card{padding:var(--space-6);border-radius:var(--radius-lg);gap:var(--space-3);flex-direction:column;display:flex}.empty-state{text-align:center;padding:var(--space-10) var(--space-6);border:1px dashed var(--border);border-radius:var(--radius-lg);transition:border-color var(--transition-fast);background:#1e1d304d;flex-direction:column;justify-content:center;align-items:center;display:flex}.empty-state:hover{border-color:var(--border-hover)}.empty-state-icon{margin-bottom:var(--space-3);filter:drop-shadow(0 4px 12px #0000004d);font-size:3rem;animation:2.5s ease-in-out infinite pulse}.empty-state-title{font-family:var(--font-display);font-size:var(--font-size-xl);color:var(--text-primary);margin-bottom:var(--space-2);font-weight:700}.empty-state-desc{color:var(--text-muted);font-size:var(--font-size-sm);max-width:420px;margin-bottom:var(--space-5);line-height:1.5}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--radius-sm)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.auth-page{min-height:100vh;padding:var(--space-4);justify-content:center;align-items:center;display:flex;position:relative}.auth-container{z-index:1;width:100%;max-width:440px;position:relative}.auth-card{background:var(--gradient-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--space-10);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.auth-logo{text-align:center;margin-bottom:var(--space-8)}.auth-logo h1{font-family:var(--font-display);font-size:var(--font-size-4xl);background:var(--gradient-fire);-webkit-text-fill-color:transparent;margin-bottom:var(--space-2);-webkit-background-clip:text;background-clip:text}.auth-logo p{color:var(--text-secondary);font-size:var(--font-size-sm)}.auth-form{gap:var(--space-5);flex-direction:column;display:flex}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border);width:72px;height:100vh;padding:var(--space-4) 0;z-index:50;transition:width var(--transition-normal);flex-direction:column;align-items:center;display:flex;position:fixed;top:0;left:0}.sidebar-logo{font-family:var(--font-display);font-size:var(--font-size-xl);margin-bottom:var(--space-8);background:var(--gradient-fire);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.nav-item{border-radius:var(--radius-md);width:48px;height:48px;color:var(--text-muted);font-size:var(--font-size-xl);transition:all var(--transition-normal);margin-bottom:var(--space-2);justify-content:center;align-items:center;display:flex;position:relative}.nav-item:hover{background:var(--surface-1);color:var(--text-primary)}.nav-item.active{color:var(--primary-light);background:#6c5ce726}.nav-item.active:before{content:"";background:var(--primary);border-radius:0 4px 4px 0;width:4px;height:24px;position:absolute;top:50%;left:-12px;transform:translateY(-50%)}.nav-item .tooltip{background:var(--surface-2);color:var(--text-primary);padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);font-size:var(--font-size-xs);white-space:nowrap;opacity:0;pointer-events:none;transition:opacity var(--transition-fast);z-index:var(--z-tooltip);position:absolute;left:60px}.nav-item:hover .tooltip{opacity:1}.main-content{padding:var(--space-6);z-index:1;min-height:100vh;margin-left:72px;position:relative}.page-header{margin-bottom:var(--space-8);justify-content:space-between;align-items:center;display:flex}.page-title{font-family:var(--font-display);font-size:var(--font-size-3xl)}.wizard{max-width:560px;margin:0 auto}.wizard-steps{justify-content:center;align-items:center;gap:var(--space-3);margin-bottom:var(--space-10);display:flex}.wizard-step{border-radius:var(--radius-full);width:36px;height:36px;font-weight:600;font-size:var(--font-size-sm);transition:all var(--transition-normal);justify-content:center;align-items:center;display:flex}.wizard-step.completed{background:var(--success);color:#fff}.wizard-step.active{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-glow-primary);animation:2s ease-in-out infinite pulse}.wizard-step.pending{background:var(--surface-1);color:var(--text-muted)}.wizard-connector{background:var(--border);width:40px;height:2px}.wizard-connector.completed{background:var(--success)}.avatar-grid{gap:var(--space-3);margin-bottom:var(--space-6);grid-template-columns:repeat(5,1fr);display:grid}.avatar-option{aspect-ratio:1;border-radius:var(--radius-lg);background:var(--surface-1);cursor:pointer;transition:all var(--transition-normal);border:2px solid #0000;justify-content:center;align-items:center;font-size:2rem;display:flex}.avatar-option:hover{background:var(--surface-2);transform:scale(1.05)}.avatar-option.selected{border-color:var(--primary);box-shadow:var(--shadow-glow-primary);background:#6c5ce726}.grade-grid{gap:var(--space-3);grid-template-columns:repeat(4,1fr);display:grid}.grade-option{padding:var(--space-4);border-radius:var(--radius-md);text-align:center;background:var(--surface-1);cursor:pointer;transition:all var(--transition-normal);font-family:var(--font-display);border:2px solid #0000}.grade-option:hover{background:var(--surface-2);transform:translateY(-2px)}.grade-option.selected{border-color:var(--primary);box-shadow:var(--shadow-glow-primary);background:#6c5ce726}.grade-number{font-size:var(--font-size-2xl);color:var(--text-primary);font-weight:700}.grade-label{font-size:var(--font-size-xs);color:var(--text-muted);margin-top:var(--space-1)}.autocomplete{position:relative}.autocomplete-dropdown{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-md);margin-top:var(--space-1);max-height:200px;z-index:var(--z-dropdown);animation:.2s slide-down;position:absolute;top:100%;left:0;right:0;overflow-y:auto}.autocomplete-item{padding:var(--space-3) var(--space-4);cursor:pointer;transition:background var(--transition-fast);font-size:var(--font-size-sm)}.autocomplete-item:hover{background:var(--surface-3)}.leaderboard-tabs{gap:var(--space-2);margin-bottom:var(--space-6);-webkit-overflow-scrolling:touch;display:flex;overflow-x:auto}.tab{padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);font-size:var(--font-size-sm);color:var(--text-muted);background:var(--surface-1);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;font-weight:500}.tab:hover{color:var(--text-primary)}.tab.active{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-glow-primary)}.leaderboard-item{align-items:center;gap:var(--space-4);padding:var(--space-4);border-radius:var(--radius-md);transition:all var(--transition-fast);display:flex}.leaderboard-item:hover{background:var(--surface-1)}.leaderboard-rank{width:36px;height:36px;font-family:var(--font-display);font-weight:700;font-size:var(--font-size-lg);border-radius:var(--radius-full);flex-shrink:0;justify-content:center;align-items:center;display:flex}.rank-1{color:#3e2723;background:linear-gradient(135deg,gold,#ffa000)}.rank-2{color:#1a1a2e;background:linear-gradient(135deg,silver,#9e9e9e)}.rank-3{color:#fff;background:linear-gradient(135deg,#cd7f32,sienna)}.timer-display{font-family:var(--font-display);font-size:var(--font-size-5xl);text-align:center;letter-spacing:4px;margin:var(--space-8) 0;font-weight:700}.timer-circle{border:6px solid var(--surface-1);border-radius:50%;justify-content:center;align-items:center;width:240px;height:240px;margin:0 auto;display:flex;position:relative}.timer-circle svg{width:calc(100% + 12px);height:calc(100% + 12px);position:absolute;top:-6px;left:-6px;transform:rotate(-90deg)}.timer-circle circle{fill:none;stroke-width:6px;stroke-linecap:round;transition:stroke-dashoffset 1s linear}@media (max-width:768px){.sidebar{width:100%;height:64px;padding:0 var(--space-2);border-right:none;border-top:1px solid var(--border);flex-direction:row;justify-content:space-around;position:fixed;top:auto;bottom:0;left:0}.sidebar-logo{display:none}.nav-item{width:44px;height:44px;margin-bottom:0}.nav-item.active:before{border-radius:4px;width:24px;height:4px;top:-8px;left:50%;transform:translate(-50%)}.nav-item .tooltip{display:none}.main-content{padding:var(--space-4);margin-left:0;padding-bottom:80px}.page-title{font-size:var(--font-size-2xl)}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.grade-grid{grid-template-columns:repeat(3,1fr)}.avatar-grid{grid-template-columns:repeat(4,1fr)}.auth-card{padding:var(--space-6)}.timer-circle{width:200px;height:200px}.timer-display{font-size:var(--font-size-4xl)}}@media (max-width:480px){.grade-grid{grid-template-columns:repeat(3,1fr)}.avatar-grid{grid-template-columns:repeat(4,1fr)}.leaderboard-tabs{gap:var(--space-1)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--surface-3);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{color:var(--text-primary);background:#6c5ce74d}.ad-slot{margin:var(--space-6) auto 0;opacity:.85;width:100%;max-width:728px}.ad-slot-label{letter-spacing:.08em;text-transform:uppercase;color:var(--text-tertiary);text-align:center;margin-bottom:4px;font-size:.65rem}.ad-slot:has(ins[data-ad-status=unfilled]){display:none}