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var(--color-focus);outline-offset:0;border-color:var(--color-focus)}.input[aria-invalid=true]{border-color:var(--color-danger)}.input:disabled{background:var(--color-surface-2);color:var(--color-ink-muted)}textarea.input{resize:vertical;line-height:1.6}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}.page-head{margin-bottom:var(--space-5)}.page-head h1{margin:0 0 var(--space-2);font-family:var(--font-display);font-weight:600;font-size:clamp(1.6rem,1.2rem + 2vw,2.4rem);letter-spacing:-.03em}.page-head p{margin:0;max-width:60ch;color:var(--color-ink-muted)}.panel{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-lg);padding:var(--space-5) var(--space-4);box-shadow:var(--shadow-1)}@media(min-width:768px){.panel{padding:var(--space-5)}}.panel h2{margin:0 0 var(--space-4);font-size:1.05rem;font-weight:700}.stack{display:flex;flex-direction:column;gap:var(--space-4)}.counter{margin:0;font-family:var(--font-mono);font-size:.875rem;color:var(--color-ink-muted)}.counter strong{color:var(--color-ink);font-weight:500}.note{margin:0;color:var(--color-ink-muted);font-size:.9rem}.error-text{margin:0;color:var(--color-danger)}.prose{max-width:72ch}.prose h1{margin:0 0 var(--space-2);font-family:var(--font-display);font-weight:600;font-size:clamp(1.8rem,1.3rem + 2vw,2.6rem);letter-spacing:-.03em}.prose .effective{margin:0 0 var(--space-6);font-family:var(--font-mono);font-size:.85rem;color:var(--color-ink-muted)}.prose h2{margin:var(--space-7) 0 var(--space-3);font-size:1.25rem;scroll-margin-top:var(--space-5)}.prose h3{margin:var(--space-5) 0 var(--space-2);font-size:1.05rem}.prose p,.prose li{line-height:1.65}.prose ul{padding-left:var(--space-5)}.prose li+li{margin-top:var(--space-2)}.prose .callout{padding:var(--space-4) var(--space-5);border-radius:var(--radius-md);background:var(--color-surface-2)}