.not-found-page{min-height:100vh;padding-top:calc(72px + var(--section-padding-y));padding-bottom:var(--section-padding-y);background:var(--color-bg-base);justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.not-found-page:before{content:"";background-image:linear-gradient(var(--color-border-subtle)1px,transparent 1px),linear-gradient(90deg,var(--color-border-subtle)1px,transparent 1px);pointer-events:none;background-size:48px 48px;position:absolute;inset:0}.not-found-page:after{content:"";background:radial-gradient(ellipse,var(--color-brand-royal-50)0%,transparent 70%);pointer-events:none;width:600px;height:400px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.not-found-wrapper{z-index:var(--z-raised);width:100%;max-width:560px;padding:0 var(--container-padding-x);align-items:center;gap:var(--space-8);animation:nf-fade-up var(--duration-slow)var(--ease-brand)both;flex-direction:column;display:flex;position:relative}@keyframes nf-fade-up{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.not-found-brand{font-family:var(--font-display);font-size:var(--text-sm);font-weight:var(--font-weight-semibold);letter-spacing:var(--tracking-widest);text-transform:uppercase;color:var(--color-brand-mid);animation:nf-fade-up var(--duration-normal)var(--ease-brand)both}.not-found-code{font-family:var(--font-display);font-size:clamp(96px,20vw,140px);font-weight:var(--font-weight-bold);line-height:var(--leading-none);letter-spacing:var(--tracking-tight);color:#0000;background:linear-gradient(135deg,var(--color-text-primary)0%,var(--color-brand-light)60%,var(--color-brand-mid)100%);animation:nf-fade-up var(--duration-slow).1s var(--ease-brand)both;-webkit-background-clip:text;background-clip:text}.not-found-card{background:var(--color-brand-royal-25);border:var(--border-width-default)solid var(--color-border-default);border-radius:var(--radius-lg);width:100%;padding:var(--card-padding);animation:nf-fade-up var(--duration-slow).2s var(--ease-brand)both}.nf-card-header{align-items:center;gap:var(--space-3);margin-bottom:var(--space-4);display:flex}.nf-avatar{border-radius:var(--radius-full);background:var(--color-bg-surface);border:var(--border-width-default)solid var(--color-border-default);width:40px;height:40px;font-family:var(--font-display);font-size:var(--text-base);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);letter-spacing:var(--tracking-wide);flex-shrink:0;justify-content:center;align-items:center;display:flex}.nf-reviewer-name{font-size:var(--text-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);line-height:var(--leading-tight)}.nf-reviewer-meta{font-size:var(--text-xs);color:var(--color-text-secondary);opacity:.7;line-height:var(--leading-normal)}.nf-stars{margin-bottom:var(--space-3);gap:3px;display:flex}.nf-star{justify-content:center;align-items:center;width:18px;height:18px;display:flex}.nf-star svg{width:16px;height:16px}.nf-star-filled path{fill:var(--color-warning)}.nf-star-empty path{fill:var(--color-border-default)}.nf-tag{font-size:var(--text-xs);font-weight:var(--font-weight-semibold);letter-spacing:var(--tracking-wider);text-transform:uppercase;color:var(--color-brand-mid);background:var(--color-bg-subtle);border:var(--border-width-default)solid var(--color-border-default);border-radius:var(--radius-sm);padding:var(--space-1)var(--space-2);margin-bottom:var(--space-3);display:inline-block}.nf-review-title{font-family:var(--font-display);font-size:var(--text-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2);letter-spacing:var(--tracking-tight)}.nf-review-body{font-size:var(--text-sm);line-height:var(--leading-relaxed);color:var(--color-text-secondary)}.nf-review-body strong{color:var(--color-text-primary);font-weight:var(--font-weight-medium)}.nf-divider{width:100%;height:var(--border-width-default);background:var(--color-border-default);margin:var(--space-4)0}.nf-card-footer{justify-content:space-between;align-items:center;display:flex}.nf-helpful-label{font-size:var(--text-xs);color:var(--color-text-secondary);opacity:.6}.nf-helpful-btn{align-items:center;gap:var(--space-2);font-family:var(--font-ui);font-size:var(--text-xs);color:var(--color-text-secondary);background:var(--color-bg-subtle);border:var(--border-width-default)solid var(--color-border-default);border-radius:var(--radius-sm);padding:var(--space-1)var(--space-3);cursor:pointer;transition:var(--transition-colors);display:flex}.nf-helpful-btn:hover{background:var(--color-border-default);color:var(--color-text-primary)}.nf-cta{align-items:center;gap:var(--space-4);animation:nf-fade-up var(--duration-slow).35s var(--ease-brand)both;flex-direction:column;display:flex}.nf-cta-hint{font-size:var(--text-sm);color:var(--color-text-secondary);opacity:.7;text-align:center}.nf-btn-home{align-items:center;gap:var(--space-2);background:var(--color-text-primary);color:var(--color-brand-navy);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-semibold);letter-spacing:var(--tracking-wide);padding:var(--space-3)var(--space-8);border-radius:var(--radius-md);cursor:pointer;transition:transform var(--duration-normal)var(--ease-out),box-shadow var(--duration-normal)var(--ease-out);border:none;text-decoration:none;display:inline-flex}.nf-btn-home:hover{box-shadow:var(--shadow-xl);transform:translateY(-2px)}.nf-btn-home:active{transform:translateY(0)}.nf-btn-arrow{transition:var(--transition-transform);display:inline-block}.nf-btn-home:hover .nf-btn-arrow{transform:translate(4px)}@media (max-width:768px){.not-found-wrapper{padding:0 var(--container-padding-x-sm);gap:var(--space-6)}.not-found-card{padding:var(--card-padding-sm)}}