/* /paint-by-numbers/ page styles. Built from /assets/polyatic.css tokens only (no new colours or fonts).
   The only literal colours on the page are the photo's own palette, set at run time, and the white of
   the paper in the two previews. */
.nojs{margin:1.25rem 0 0;padding:0.875rem 1rem;border:1px solid var(--line);border-left:0.25rem solid var(--accent);border-radius:0.625rem;background:var(--surface);color:var(--ink);font-size:0.9375rem;line-height:1.6}

@media(min-width:920px){.pbn-duo{grid-template-columns:minmax(0,1.5fr) minmax(21rem,1fr)}}
.pbn-side{display:grid;gap:1rem;align-content:start}

.drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0.5rem;text-align:center;min-height:10rem;padding:1.5rem 1.25rem;border:2px dashed var(--line-2);border-radius:0.875rem;background:var(--surface-2);cursor:pointer;transition:border-color .15s,background .15s}
.drop:hover,.drop:focus-visible,.drop.drag{border-color:var(--accent);background:var(--accent-soft)}
.drop b{font-size:1.0625rem}
.drop small{color:var(--muted);max-width:34ch}
@media(min-width:920px){.pbn-drop{min-height:18rem}}
/* icon: a little numbered outline */
.pbn-drop-icon{width:2.75rem;height:2.75rem;border:2px solid var(--ink);border-radius:0.375rem;background:
  linear-gradient(var(--ink),var(--ink)) 45% 0/2px 60% no-repeat,
  linear-gradient(var(--ink),var(--ink)) 0 60%/45% 2px no-repeat,
  linear-gradient(var(--accent),var(--accent)) 100% 100%/55% 40% no-repeat,var(--surface)}
.pbn-cam{margin:0.625rem 0 0;display:flex;justify-content:center}
.pbn-cam .btn{height:2.5rem}
.has-image .drop,.has-image .pbn-cam{display:none}

.hint{font-size:0.8125rem;color:var(--muted);margin:0.75rem 0.125rem 0;min-height:1.125rem}
.hint.bad{color:var(--bad);font-weight:600}
.has-image .hint{margin-top:0;margin-bottom:0.5rem}

.pbn-work[hidden]{display:none}
.pbn-views{display:grid;grid-template-columns:1fr 1fr;gap:0.5rem;align-items:start}
.pbn-views.big{grid-template-columns:1fr}
.pbn-fig{margin:0;min-width:0}
.pbn-fig figcaption{font-family:var(--mono);font-size:0.6875rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 0.25rem 0.125rem}
.pbn-canvas{display:block;width:100%;height:auto;cursor:zoom-in;border:1px solid var(--line);border-radius:0.375rem;background:#fff}
.busy .pbn-canvas{opacity:.55}
.busy .pbn-pal{pointer-events:none;opacity:.6}

.pbn-diff{margin:0.75rem 0.125rem 0.25rem;font-family:var(--mono);font-size:0.8125rem;color:var(--ink-2);font-variant-numeric:tabular-nums}
.pbn-diff b{color:var(--accent)}
.pbn-warn{color:var(--warn);font-weight:600}
.pbn-line{display:flex;flex-wrap:wrap;gap:0.375rem 0.875rem;align-items:center;margin:0.25rem 0.125rem 1rem;font-size:0.8125rem;color:var(--muted)}
.pbn-big{font-size:0.8125rem;color:var(--ink-2)}
.pbn-link{border:0;background:none;padding:0.25rem 0;margin-left:auto;color:var(--muted);font:inherit;font-size:0.8125rem;text-decoration:underline;text-underline-offset:2px;cursor:pointer}
.pbn-link:hover{color:var(--accent)}

.pbn-sec{font-size:0.8125rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:0 0 0.75rem}
.pbn-for{font-weight:500;text-transform:none;letter-spacing:0;color:var(--accent);margin-left:0.25rem}
.pbn-k{display:block;font-family:var(--mono);font-size:0.75rem;font-weight:500;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:0.375rem}

/* colour key: one row per colour */
.pbn-pal{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(16.5rem,1fr));gap:0.375rem;max-height:24rem;overflow:auto}
.pbn-pal li{display:grid;grid-template-columns:auto 1.75rem minmax(0,1fr) auto auto;align-items:center;gap:0.375rem;padding:0.3125rem 0.375rem;border:1px solid var(--line);border-radius:0.5rem;background:var(--surface)}
.pbn-sw{position:relative;display:block;width:1.875rem;height:1.875rem;border-radius:0.375rem;border:1px solid var(--line-2);cursor:pointer}
.pbn-sw input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;border:0;padding:0}
.pbn-sw:focus-within{outline:2px solid var(--accent);outline-offset:2px}
.pbn-num{font-family:var(--mono);font-size:0.875rem;text-align:center;font-variant-numeric:tabular-nums}
.pbn-hex{font-family:var(--mono);font-size:0.75rem;color:var(--ink-2);overflow-wrap:anywhere}
.pbn-lock{border:1px solid var(--line-2);background:var(--surface);color:var(--ink-2);font:inherit;font-size:0.75rem;padding:0.3125rem 0.5rem;border-radius:0.375rem;cursor:pointer}
.pbn-lock[aria-pressed=true]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.pbn-merge{font-size:0.75rem;padding:0.3125rem 0.25rem;max-width:7.5rem}

/* my paints + recipes (swatch colours are the visitor's paints and key colours, set at run time) */
.pbn-paints{margin-top:1.5rem;padding-top:1.25rem;border-top:1px solid var(--line)}
.pbn-paints[hidden]{display:none}
.pbn-how{max-width:68ch}
.pbn-swbtn{margin:0.75rem 0}
.pbn-swatchwrap{margin:0 0 0.75rem}
.pbn-swatchwrap[hidden]{display:none}
.pbn-swatchcv{display:block;max-width:100%;max-height:22rem;height:auto;margin:0 0 0.375rem;border:1px solid var(--line);border-radius:0.375rem;cursor:crosshair}
.pbn-add{display:grid;grid-template-columns:2.5rem minmax(0,2fr) minmax(0,1fr) auto;gap:0.625rem;align-items:end;margin:0 0 0.5rem}
.pbn-add .field{margin:0;min-width:0}
.pbn-add>.pbn-chip{align-self:end;margin-bottom:0.125rem}
@media(max-width:560px){.pbn-add{grid-template-columns:2.5rem minmax(0,1fr) minmax(0,1fr)}.pbn-add .field:not(.pbn-hexf){grid-column:2/4}.pbn-add .pbn-hexf{grid-column:1/3}}
.pbn-chip{display:inline-block;flex:none;width:1.875rem;height:1.875rem;border-radius:0.375rem;border:1px solid var(--line-2)}
.pbn-add>.pbn-chip{width:2.5rem;height:2.5rem}
.pbn-chip-empty{background:repeating-linear-gradient(45deg,var(--surface-2) 0 4px,var(--surface) 4px 8px)}
.pbn-plist{list-style:none;margin:0.5rem 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:0.375rem}
.pbn-plist li{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;gap:0.5rem;padding:0.3125rem 0.375rem;border:1px solid var(--line);border-radius:0.5rem;background:var(--surface)}
.pbn-pname{font-size:0.875rem;overflow-wrap:anywhere}
.pbn-rh{margin-top:1.25rem}
.pbn-recipes{list-style:none;margin:0.5rem 0 0;padding:0;display:grid;gap:0.375rem}
.pbn-recipes li{display:grid;grid-template-columns:1.75rem auto minmax(0,1fr) auto;align-items:center;gap:0.5rem;padding:0.375rem 0.5rem;border:1px solid var(--line);border-radius:0.5rem;background:var(--surface)}
.pbn-pair{display:inline-flex}
.pbn-pair .pbn-chip{width:1.625rem;height:2rem}
.pbn-pair .pbn-target{border-radius:0.375rem 0 0 0.375rem;border-right:0}
.pbn-pair .pbn-mixed{border-radius:0 0.375rem 0.375rem 0}
.pbn-rline{font-size:0.8125rem;color:var(--ink-2);line-height:1.4;overflow-wrap:anywhere}
.pbn-word{font-family:var(--mono);font-size:0.6875rem;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;padding:0.1875rem 0.375rem;border-radius:0.25rem;border:1px solid currentColor}
.pbn-very-close{color:var(--ok)}
.pbn-close{color:var(--accent)}
.pbn-rough{color:var(--warn)}
@media(max-width:480px){.pbn-recipes li{grid-template-columns:1.5rem auto minmax(0,1fr)}.pbn-word{grid-column:3;justify-self:start}}
.pbn-rules b{color:var(--ink-2)}

.pbn-panel .field{margin-bottom:1rem}
.pbn-panel .field:last-child{margin-bottom:0}
.pbn-two{display:flex;flex-wrap:wrap;gap:0.75rem;align-items:flex-end;margin-bottom:1rem}
.pbn-two .field{margin-bottom:0;flex:1 1 9rem}
.pbn-custom .field{flex:1 1 5.5rem}
.pbn-two[hidden],.pbn-two .field[hidden]{display:none}
.pbn-two .btn{flex:1 1 9rem}
.pbn-acts{display:flex;flex-wrap:wrap;gap:0.5rem}
.pbn-acts .btn{flex:1 1 8rem}
.btn:disabled{opacity:.5;cursor:default;filter:none}
.pbn-lock:focus-visible,.pbn-link:focus-visible,.drop:focus-visible,.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.note{font-size:0.8125rem;color:var(--muted);margin:0.75rem 0.125rem 0;line-height:1.5}
.note.bad{color:var(--bad);font-weight:600}
.pbn-note{margin-top:0}
.pbn-acts+.pbn-note{margin-top:0.75rem}

.explainer .pbn-steps,.explainer .pbn-cannot{color:var(--muted);font-size:0.9375rem;margin:0 0 0.75rem;padding-left:1.25rem}
.explainer .pbn-steps li,.explainer .pbn-cannot li{margin:0 0 0.5rem}
.explainer .pbn-steps b,.explainer .pbn-cannot b{color:var(--ink)}
.explainer table{max-width:none;display:block;overflow-x:auto}

@media (prefers-reduced-motion:reduce){.drop{transition:none}}

/* T-PB.87: difficulty row, restore bar, saved-work clear */
.pbn-levels{align-items:center}
.pbn-level{flex:1 1 5.5rem}
.pbn-level:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pbn-custom-tag{flex:0 0 auto;padding:0.5rem 0.75rem;border:1px dashed var(--accent);border-radius:0.5rem;color:var(--accent);font-weight:550;font-size:0.875rem}
.pbn-levels+.pbn-note{margin-top:0.75rem}
.pbn-restore{display:flex;flex-wrap:wrap;align-items:center;gap:0.25rem 0.75rem;margin:0.5rem 0 0;padding:0.5rem 0.75rem;border:1px solid var(--line);border-left:0.25rem solid var(--accent);border-radius:0.5rem;background:var(--accent-soft);color:var(--ink);font-size:0.875rem}
.pbn-restore .pbn-link{margin-left:0;color:var(--accent);font-weight:550}
.trust .pbn-link{margin:0;padding:0;font-size:inherit;color:var(--accent);font-weight:600}
.pbn-cleared:empty{display:none}
.pbn-levels-t td:first-child{font-weight:600}

/* T-PB.98: Outlines Smooth / Pixel */
.pbn-outlines{margin-top:0.375rem}
.pbn-ol{flex:1 1 5.5rem}
.pbn-ol:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pbn-outlines+.pbn-note{margin-top:0.5rem}

/* T-PB.106: Paint on screen. A full-screen view of the current sheet (paper stays white, like the
   printed sheet); the fill colours are the key's own, set at run time. */
.pbn-playrow{margin-top:0.875rem}
.pbn-reset{color:var(--warn);font-weight:600}
html.pbn-playing,html.pbn-playing body{overflow:hidden}
.pbn-play{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;background:var(--bg);color:var(--ink)}
.pbn-play[hidden]{display:none}
.pbn-play-top{display:flex;flex-wrap:wrap;align-items:center;gap:0.375rem 0.75rem;padding:0.5rem 0.75rem;border-bottom:1px solid var(--line);background:var(--surface)}
.pbn-play-h{margin:0;font-size:1rem;font-weight:700}
.pbn-play-count{margin:0;flex:1 1 auto;font-family:var(--mono);font-size:0.8125rem;color:var(--ink-2);font-variant-numeric:tabular-nums}
.pbn-play-tools{display:flex;flex-wrap:wrap;gap:0.375rem;flex:1 1 100%}
.pbn-pbtn{min-width:2.5rem;height:2.25rem;padding:0 0.625rem;border:1px solid var(--line-2);border-radius:0.5rem;background:var(--surface);color:var(--ink);font:inherit;font-size:0.875rem;font-weight:550;cursor:pointer}
.pbn-pbtn:hover{border-color:var(--ink)}
.pbn-pclose{margin-left:auto;border-color:var(--accent);color:var(--accent)}
.pbn-pbtn:focus-visible,.pbn-pnum:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(min-width:720px){.pbn-play-tools{flex:0 1 auto}.pbn-play-count{flex:1 1 auto}}
.pbn-stage{position:relative;flex:1 1 auto;min-height:0;overflow:hidden;background:var(--surface-2)}
.pbn-playcv{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}
.pbn-done{position:absolute;left:50%;bottom:0.75rem;transform:translateX(-50%);display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:0.5rem 0.875rem;max-width:calc(100% - 1.5rem);padding:0.625rem 0.875rem;border:1px solid var(--line);border-left:0.25rem solid var(--ok);border-radius:0.625rem;background:var(--surface);box-shadow:var(--shadow)}
.pbn-done[hidden]{display:none}
.pbn-done p{margin:0;font-size:0.9375rem}
.pbn-play-msg{margin:0;padding:0.4375rem 0.75rem;min-height:2.25rem;font-size:0.8125rem;line-height:1.4;color:var(--ink-2);border-top:1px solid var(--line);background:var(--surface)}
.pbn-play-pal{display:flex;gap:0.375rem;overflow-x:auto;padding:0.5rem 0.75rem calc(0.5rem + env(safe-area-inset-bottom,0px));background:var(--surface);overscroll-behavior:contain}
.pbn-pnum{flex:0 0 auto;display:inline-flex;align-items:center;gap:0.375rem;height:2.75rem;padding:0 0.5rem 0 0.375rem;border:1px solid var(--line-2);border-radius:0.5rem;background:var(--surface);color:var(--ink);font:inherit;cursor:pointer}
.pbn-pnum b{font-family:var(--mono);font-size:0.9375rem;font-variant-numeric:tabular-nums}
.pbn-pnum .pbn-chip{width:1.5rem;height:1.5rem}
.pbn-tick{font-family:var(--mono);font-size:0.6875rem;color:var(--muted);min-width:1ch}
.pbn-pnum[aria-pressed=true]{border:2px solid var(--accent);background:var(--accent-soft)}
.pbn-pnum.done .pbn-tick{color:var(--ok);font-size:0.875rem;font-weight:700}