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.account-stats{gap:.75rem;margin-bottom:.75rem}.account-section-compact .account-stat{padding:.5rem .6rem}.account-section-compact .account-stat-value{font-size:1.15rem}.account-section-compact .account-stat-label{font-size:.7rem}.account-section-compact .btn{padding:.5rem .9rem;font-size:.85rem;min-height:36px}.account-section-compact .account-portal-message,.account-section-compact .account-portal-hint{margin-top:.5rem;font-size:.8rem}.auth-divider{display:flex;align-items:center;gap:1rem;margin:1.25rem 0;color:var(--text-muted);font-size:.8rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.btn-google{width:100%;background:var(--surface);border:1px solid var(--border-bright);color:var(--text);gap:.6rem}.btn-google:hover{background:var(--surface-hover)}.btn-google svg{flex-shrink:0}.main-content{flex:1}.page-title{font-size:clamp(1.75rem,4vw,2.25rem);font-weight:800;letter-spacing:-.03em;margin:0 0 .5rem}.section-page-intro{padding-bottom:0}.section-page-intro code{font-size:.85em;padding:.15em .45em;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xs);color:var(--accent-2)}.cta-section{text-align:center}.cta-card{max-width:560px;margin:0 auto;position:relative;overflow:hidden}.cta-card:before{content:"";position:absolute;top:-1px;right:-1px;bottom:-1px;left:-1px;border-radius:var(--radius);background:var(--gradient);opacity:.15;z-index:0;pointer-events:none}.cta-card>*{position:relative;z-index:1}.challenge-section{text-align:center}.challenge-section .section-desc{margin-left:auto;margin-right:auto}.badge-warning{background:#ef44441f;color:#f87171;border-color:#ef444433}.challenge-stats{display:grid;grid-template-columns:1fr;gap:1rem;margin-bottom:2rem}@media(min-width:640px){.challenge-stats{grid-template-columns:repeat(3,1fr)}}.challenge-stat-card{text-align:left;position:relative;overflow:hidden}.challenge-stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(135deg,#ef4444,#f97316);opacity:.6}.challenge-stat-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--radius-sm);margin-bottom:1rem}.challenge-stat-icon-1{background:#ef44441f;color:#f87171}.challenge-stat-icon-2{background:#f59e0b1f;color:#fbbf24}.challenge-stat-icon-3{background:#a855f71f;color:#c084fc}.challenge-stat-title{margin:0 0 .5rem;font-size:1.05rem;font-weight:700;letter-spacing:-.01em}.challenge-stat-body{margin:0;color:var(--text-muted);font-size:.9rem;line-height:1.6}.challenge-cta-text{color:var(--text-secondary);font-size:1.05rem;line-height:1.6;max-width:48ch;margin:0 auto;text-align:center}.challenge-cta-text strong{color:var(--text)}.footer{padding:2rem 1.5rem;border-top:1px solid var(--border);color:var(--text-muted);font-size:.85rem;text-align:center}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--surface-hover);border-radius:4px}::selection{background:#6366f14d}@keyframes fade-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:fade-up .5s cubic-bezier(.16,1,.3,1) both}.animate-delay-1{animation-delay:.1s}.animate-delay-2{animation-delay:.2s}.animate-delay-3{animation-delay:.3s}.glass{background:#18181b99;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border)}@keyframes spin{to{transform:rotate(360deg)}}