/* /halftone-generator/ page styles. Built from /assets/polyatic.css tokens only (no new colours or fonts).
   The preview canvas shows the film or the print as it is (film black = ink), in light and dark theme alike. */
.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){.ht-duo{grid-template-columns:minmax(0,1.4fr) minmax(21rem,1fr)}}
.duo>.pane-result.ht-side{position:static}
.ht-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:11rem;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){.ht-drop{min-height:20rem}}
/* icon: dots shrinking across a film */
.ht-drop-icon{width:2.75rem;height:2.75rem;border:2px solid var(--ink);border-radius:0.375rem;background:radial-gradient(circle,var(--ink) 34%,transparent 37%) 0 0/0.6rem 0.6rem,var(--surface);-webkit-mask:linear-gradient(135deg,#000 30%,rgba(0,0,0,.35));mask:linear-gradient(135deg,#000 30%,rgba(0,0,0,.35))}
.has-image .drop{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}

.ht-work[hidden]{display:none}
.ht-viewbar{display:flex;flex-wrap:wrap;gap:0.5rem 0.75rem;align-items:center;margin-bottom:0.5rem}
.ht-views,.ht-zoom{margin:0;flex:0 1 auto;flex-wrap:wrap}
.ht-views button,.ht-zoom button{min-height:2.25rem;padding:0.375rem 0.625rem;white-space:nowrap}
.ht-swatch{display:inline-block;width:0.75rem;height:0.75rem;margin-right:0.3125rem;border:1px solid var(--line-2);border-radius:50%;vertical-align:-0.0625rem}
.ht-viewbox{display:flex;justify-content:center;align-items:center;border:1px solid var(--line);border-radius:0.5rem;background:var(--surface-2);padding:0.5rem;overflow:hidden;min-height:8rem}
.ht-viewbox.one{display:block;overflow:auto;max-height:min(72vh,46rem);-webkit-overflow-scrolling:touch}
.ht-canvas{display:block;max-width:100%;height:auto;background:#fff}
.ht-viewbox.one .ht-canvas{max-width:none;margin:0 auto;image-rendering:pixelated}
.ht-viewbox.picking .ht-canvas{cursor:crosshair}
.ht-viewbox[data-busy="1"] .ht-canvas{opacity:.6}

.ht-line{display:flex;flex-wrap:wrap;gap:0.375rem 0.875rem;align-items:center;margin:0.5rem 0.125rem 0;font-size:0.8125rem;color:var(--muted)}
.ht-mono{font-family:var(--mono);font-size:0.75rem;color:var(--muted)}
.ht-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}
.ht-link:hover{color:var(--accent)}
.ht-inline{margin:0;padding:0;font-size:inherit}
.ht-pick{margin:0.5rem 0.125rem 0;color:var(--ink);font-weight:600}
.ht-pick[hidden]{display:none}

.ht-sec{font-size:0.8125rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:0 0 0.75rem}
.ht-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}
.ht-k .u{text-transform:none}
.ht-modes{margin-bottom:0.75rem}
.ht-modes button{min-height:2.5rem}
.ht-grid{display:grid;grid-template-columns:1fr 1fr;gap:0.75rem;margin-bottom:0.75rem}
.ht-in{display:block;min-width:0}
.ht-in input,.ht-in select{width:100%}
.ht-colour{display:flex;gap:0.375rem;align-items:center}
.ht-colour input[type=color]{flex:0 0 2.5rem;width:2.5rem;height:2.5rem;padding:0.125rem;border:1px solid var(--line-2);border-radius:0.375rem;background:var(--surface)}
.ht-colour input[type=text]{flex:1 1 auto;min-width:0;font-family:var(--mono)}
.ht-check{margin:0 0 0.75rem;font-size:0.875rem;align-items:flex-start}
.ht-check input[type=checkbox]{margin-top:0.1875rem;flex:0 0 auto}
.ht-px{margin:0 0 0.5rem;padding:0.5rem 0.75rem;border:1px solid var(--line);border-left:0.25rem solid var(--accent);border-radius:0.5rem;background:var(--surface-2);font-family:var(--mono);font-size:0.8125rem;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.ht-px.bad{border-left-color:var(--bad);color:var(--bad)}
.ht-panel .field{margin-bottom:1rem}
.ht-panel [hidden]{display:none}

.ht-inks{list-style:none;margin:0 0 0.75rem;padding:0;display:grid;gap:0.5rem}
.ht-ink{display:grid;grid-template-columns:auto minmax(0,1fr) 4.75rem auto auto;gap:0.375rem;align-items:center;padding:0.375rem;border:1px solid var(--line);border-radius:0.5rem;background:var(--surface-2)}
.ht-ink .ht-n{font-family:var(--mono);font-size:0.75rem;color:var(--muted);min-width:1.25rem;text-align:center}
.ht-ink .ht-colour input[type=color]{flex-basis:2.25rem;width:2.25rem;height:2.25rem}
.ht-ink input[type=number]{width:100%}
.ht-icon{min-width:2.25rem;min-height:2.25rem;border:1px solid var(--line-2);border-radius:0.375rem;background:var(--surface);color:var(--ink);font:inherit;font-size:0.875rem;cursor:pointer}
.ht-icon:hover,.ht-icon.active{border-color:var(--accent);background:var(--accent-soft)}

.ht-two{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:0.75rem}
.ht-two .btn{flex:1 1 9rem}
.ht-make{width:100%}
.btn:disabled{opacity:.5;cursor:default;filter:none}
.ht-dl{list-style:none;margin:0;padding:0;display:grid;gap:0.5rem}
.ht-dl li{display:flex;flex-wrap:wrap;gap:0.375rem 0.5rem;align-items:center;padding:0.5rem 0.625rem;border:1px solid var(--line);border-radius:0.5rem;background:var(--surface-2)}
.ht-dl .ht-name{flex:1 1 10rem;font-size:0.875rem;color:var(--ink)}
.ht-dl .ht-name small{display:block;font-family:var(--mono);font-size:0.6875rem;color:var(--muted)}
.ht-dl .btn{min-height:2.25rem;padding:0.375rem 0.75rem}
.modes button:focus-visible,.drop:focus-visible,.btn:focus-visible,.ht-link:focus-visible,.ht-icon: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}
.ht-note{margin:0 0.125rem 0.75rem}
.note.bad{color:var(--bad);font-weight:600}

.explainer .ht-steps,.explainer .ht-cannot{color:var(--muted);font-size:0.9375rem;margin:0 0 0.75rem;padding-left:1.25rem}
.explainer .ht-steps li,.explainer .ht-cannot li{margin:0 0 0.5rem}
.explainer .ht-steps b,.explainer .ht-cannot b{color:var(--ink)}
.explainer code{font-family:var(--mono);font-size:0.875em;overflow-wrap:anywhere}

@media (prefers-reduced-motion:reduce){.drop{transition:none}}
@media(min-width:920px){.ht-duo>.pane-main{position:sticky;top:1rem}}