.puc-frame{border:1px solid var(--color-line);border-radius:var(--radius-3);background:var(--color-surface);margin-top:1.5rem;position:relative}.puc-stage{background-color:var(--color-surface2);background-image:linear-gradient(to right, var(--color-linesoft) 1px, transparent 1px), linear-gradient(to bottom, var(--color-linesoft) 1px, transparent 1px);border-bottom:1px solid var(--color-line);background-size:20px 20px;display:grid}@media (min-width:900px){.puc-stage{grid-template-columns:minmax(0,1fr) 2.75rem minmax(0,1fr);min-height:25rem}}.puc-half{flex-direction:column;padding:2.75rem 1rem 1rem;display:flex;position:relative}@media (min-width:900px){.puc-half{padding:3rem 1.5rem 1.5rem}}.puc-chip{border-radius:var(--radius-2);background:var(--color-n-900);color:var(--color-n-50);padding:.25rem .5rem;font-size:.75rem;font-weight:600;position:absolute;top:.75rem;left:.75rem}.puc-result .puc-chip{left:auto;right:.75rem}.puc-area{border:1px solid var(--color-line);border-radius:var(--radius-2);background:var(--color-surface);width:100%;min-height:14rem;color:var(--color-fgstrong);resize:vertical;flex:1;padding:.875rem 1rem;font-size:1rem;line-height:1.6}.puc-area::placeholder{color:var(--color-fgsubtle)}.puc-area:focus-visible{outline:2px solid var(--color-accent-600);outline-offset:0;border-color:var(--color-accent-600)}.puc-note{color:var(--color-fgmuted);margin-top:.5rem;font-size:.8125rem}.puc-split{display:none;position:relative}@media (min-width:900px){.puc-split{display:block}.puc-split:before{content:"";background:var(--color-surface);width:2px;box-shadow:0 0 0 1px var(--color-line);margin-left:-1px;position:absolute;top:0;bottom:0;left:50%}.puc-split span{border:1px solid var(--color-line);border-radius:var(--radius-2);background:var(--color-surface);width:1.375rem;height:2.25rem;margin:-1.125rem 0 0 -.6875rem;position:absolute;top:50%;left:50%}.puc-split span:after{content:"";background:var(--color-fgsoft);border-radius:999px;width:4px;height:4px;margin:-2px 0 0 -2px;position:absolute;inset:50% auto auto 50%}}.puc-result{border-top:1px dashed var(--color-line)}@media (min-width:900px){.puc-result{border-top:0}}.puc-letter{border:2px solid var(--color-accent-600);border-radius:var(--radius-2);background:var(--color-surface);font-family:var(--font-display);color:var(--color-fgstrong);box-shadow:0 0 0 4px var(--color-accent-50);flex:1;padding:1.25rem 1.375rem}.puc-letter-meta{border-bottom:1px solid var(--color-linesoft);font-family:var(--font-sans);color:var(--color-fgsoft);overflow-wrap:anywhere;margin-bottom:.875rem;padding-bottom:.75rem;font-size:.8125rem;line-height:1.6}.puc-letter-meta span{width:2.75rem;color:var(--color-fgmuted);display:inline-block}.puc-letter-p{white-space:pre-line;overflow-wrap:anywhere;font-size:1.0625rem;line-height:1.6}.puc-letter-p+.puc-letter-p{margin-top:.75rem}.puc-letter-empty{color:var(--color-fgsubtle);font-style:italic}.puc-bar{align-items:start;gap:1rem;padding:1rem;display:grid}@media (min-width:900px){.puc-bar{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto auto;padding:1rem 1.5rem}}.puc-field label{color:var(--color-fg);font-size:.8125rem;font-weight:600;display:block}.puc-field input{border:1px solid var(--color-line);border-radius:var(--radius-2);background:var(--color-surface);width:100%;height:2.75rem;color:var(--color-fgstrong);margin-top:.375rem;padding:0 .75rem;font-size:1rem;display:block}.puc-field input:focus-visible{outline:2px solid var(--color-accent-600);outline-offset:0;border-color:var(--color-accent-600)}.puc-field input[aria-invalid=true],.puc-area[aria-invalid=true]{border-color:var(--color-danger-600);box-shadow:inset 3px 0 0 var(--color-danger-600)}.puc-hint,.puc-err{margin-top:.3125rem;font-size:.75rem}.puc-hint{color:var(--color-fgmuted)}.puc-err{color:var(--color-danger-600);font-weight:600}.puc-check-pair{border:1px solid var(--color-line);border-radius:var(--radius-2);align-items:stretch;margin-top:.375rem;display:inline-flex;overflow:hidden}.puc-check-pair:has([aria-invalid=true]){border-color:var(--color-danger-600);box-shadow:inset 3px 0 0 var(--color-danger-600)}.puc-check-plain{border-right:2px solid var(--color-n-950);background:var(--color-surface2);min-width:4.75rem;font-family:var(--font-mono,ui-monospace, monospace);font-variant-numeric:tabular-nums;color:var(--color-fgstrong);white-space:nowrap;align-items:center;padding:0 .75rem;font-size:.9375rem;font-weight:600;display:inline-flex}.puc-check-wait{opacity:.5}.puc-field .puc-check-pair input{text-align:center;border:0;border-radius:0;width:4rem;height:2.75rem;margin-top:0;font-weight:600}.puc-field .puc-check-pair input[aria-invalid=true]{box-shadow:none}.puc-field .puc-check-pair input:focus-visible{outline:none}.puc-check-pair:has(input:focus-visible){outline:2px solid var(--color-accent-600);outline-offset:0;border-color:var(--color-accent-600)}.puc-send{border-radius:var(--radius-2);background:var(--color-accent-600);min-height:2.75rem;color:var(--color-accent-ink);transition:background-color var(--dur-fast,.12s) ease-out;justify-content:center;align-items:center;gap:.5rem;padding:0 1rem;font-size:.9375rem;font-weight:700;display:inline-flex}@media (min-width:900px){.puc-send{margin-top:1.5625rem}}.puc-send:hover:not(:disabled){background:var(--color-accent-500)}.puc-send:disabled{opacity:.6;cursor:progress}.puc-send-sub{border-left:1px solid;padding-left:.625rem;font-size:.75rem;font-weight:500}.puc-fail{border:1px solid var(--color-danger-600);background:var(--color-danger-50);color:var(--color-fg);border-left-width:4px;margin:0 1rem 1rem;padding:.75rem 1rem;font-size:.875rem;line-height:1.55}@media (min-width:900px){.puc-fail{margin:0 1.5rem 1rem}}.puc-fail a{color:var(--color-accent-600);padding:.625rem 0;font-weight:700;text-decoration:underline;display:inline-block}.puc-trap{width:1px;height:1px;position:absolute;left:-10000px;overflow:hidden}.puc-status{border-top:1px solid var(--color-line);background:var(--color-surface2);color:var(--color-fgmuted);flex-wrap:wrap;gap:.25rem 1.25rem;padding:.5rem 1rem;font-size:.75rem;display:flex}@media (min-width:900px){.puc-status{padding:.5rem 1.5rem}}.puc-status-end{color:var(--color-local-600);align-items:center;gap:.375rem;margin-left:auto;font-weight:600;display:inline-flex}.puc-status-end i{background:var(--color-local-600);width:.5rem;height:.5rem}.puc-done{background:var(--color-accent-50);border-bottom:1px solid var(--color-line);padding:3.5rem 1rem 2.5rem;position:relative}@media (min-width:900px){.puc-done{padding:4rem 3rem 3rem}}.puc-done-body{flex-wrap:wrap;align-items:flex-start;gap:1.25rem 1.75rem;display:flex}.puc-done-mark{color:var(--color-accent-600);flex:none}.puc-ghost{border:1px solid var(--color-accent-600);border-radius:var(--radius-2);background:var(--color-surface);min-height:2.75rem;color:var(--color-accent-600);padding:0 1rem;font-weight:700}.puc-ghost:hover{background:var(--color-accent-100)}@media (prefers-reduced-motion:reduce){.puc-send{transition:none}}