/* SHA-256 avalanche widget. Theme colors only; ruled rows, no cards. */

.w-demo {
  margin: 10px 0 8px;
  padding: 4px 0 8px;
  border-bottom: 1px solid var(--light-gray);
}

.w-demo:not(.w-ready)::before {
  content: "This demo needs JavaScript.";
  color: var(--gray);
  font-size: 0.9rem;
}

.w-note { margin: 8px 0; font-size: 0.88rem; color: var(--dark-gray); max-width: 72ch; }
.w-mono { font-family: var(--code); font-size: 0.78rem; color: var(--gray); }
.w-big { margin: 8px 0; font-family: var(--heading); font-size: 1.05rem; }
.w-big strong { color: var(--accent); font-size: 1.35rem; }

/* fields */
.w-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.w-fields label { display: grid; gap: 4px; font-family: var(--code); font-size: 0.78rem; color: var(--gray); }
.w-fields input {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--light-gray);
  border-bottom: 2px solid var(--primary);
  background: var(--background-alt);
  color: var(--text);
  font: inherit;
  font-family: var(--code);
  font-size: 1rem;
  border-radius: 0;
}
.w-fields input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

@media (max-width: 560px) { .w-fields { grid-template-columns: minmax(0, 1fr); } }

/* buttons */
.w-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin: 12px 0; }

.w-btn {
  appearance: none;
  min-height: 38px;
  padding: 7px 14px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: var(--background);
  font: inherit;
  font-family: var(--heading);
  font-size: 0.88rem;
  font-weight: var(--semi-bold);
  cursor: pointer;
  border-radius: 0;
}
.w-btn:hover { background: transparent; color: var(--primary); }
.w-btn-quiet { background: transparent; color: var(--primary); }
.w-btn-quiet:hover, .w-btn-quiet[aria-pressed="true"] { background: var(--primary); color: var(--background); }
.w-btn.running { background: transparent; color: var(--accent); border-color: var(--accent); }
.w-btn:focus-visible, .k-option:focus-visible, .w-demo .bit:focus-visible, .map-dot:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* hex digests */
.w-hexes { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 12px; margin: 10px 0; }
.w-hexes dt { font-family: var(--code); font-size: 0.75rem; color: var(--gray); padding-top: 3px; }
.w-hexes dd { margin: 0; }
.hex { display: block; font-family: var(--code); font-size: 0.82rem; word-break: break-all; line-height: 1.5; background: none; padding: 0; color: var(--text); }
.hex mark { background: transparent; color: var(--accent); font-weight: 600; }
.hex-b { color: var(--gray); }

@media (max-width: 560px) {
  .w-hexes { grid-template-columns: minmax(0, 1fr); }
}

/* bit grids */
.bitgrid {
  --cols: 16;
  --cell-off: var(--light-gray);
  --cell-on: var(--accent);
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  gap: 2px;
}
.bitgrid .bit { display: block; aspect-ratio: 1; background: var(--cell-off); border: 0; padding: 0; margin: 0; border-radius: 0; }
.bitgrid .bit.on { background: var(--cell-on); }
.bitgrid-256 { width: min(100%, 260px); }

.w-split { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 20px; align-items: start; margin-top: 10px; }
@media (max-width: 640px) { .w-split { grid-template-columns: minmax(0, 1fr); } }

.reg-wrap { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px; margin: 10px 0; max-width: 760px; }
.reg-labels { display: grid; grid-template-rows: repeat(8, minmax(0, 1fr)); font-family: var(--code); font-size: 0.75rem; color: var(--gray); align-items: center; }
.bitgrid-reg { gap: 1px; }

.bitgrid-msg { --cell-on: var(--primary); gap: 1px; margin-top: 8px; max-width: 760px; }
.bitgrid-msg .bit { cursor: pointer; }
.bitgrid-msg .bit.sel { background: var(--accent); outline: 2px solid var(--text); outline-offset: -1px; }

/* ranges */
.w-range { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; margin: 8px 0; font-family: var(--code); font-size: 0.78rem; color: var(--gray); }
.w-range input[type="range"] { width: 100%; accent-color: var(--primary); }

/* parts panel */
.parts { list-style: none; margin: 8px 0; padding: 0; border-top: 1px solid var(--light-gray); }
.part {
  display: grid;
  grid-template-columns: auto 3.2rem minmax(0, 1fr);
  gap: 4px 12px;
  align-items: center;
  margin: 0;
  padding: 9px 0;
  border-bottom: 1px solid var(--light-gray);
  transition: opacity var(--transition);
}
.part.off { opacity: 0.55; }
.part.off .part-sym { text-decoration: line-through; color: var(--gray); }
.part-sym { font-family: var(--code); font-size: 1.15rem; color: var(--accent); text-align: center; }
.part-text { display: grid; gap: 2px; }
.part-name { font-family: var(--heading); font-weight: var(--semi-bold); cursor: pointer; }
.part-desc { font-size: 0.85rem; color: var(--dark-gray); }
.part-formula { font-family: var(--code); font-size: 0.78rem; }

.part-switch { position: relative; display: inline-block; width: 44px; height: 24px; cursor: pointer; }
.part-switch input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.part-track { position: absolute; inset: 0; pointer-events: none; border: 1px solid var(--gray); background: var(--background-alt); }
.part-track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; background: var(--gray); transition: transform var(--transition), background var(--transition); }
.part-switch input:checked + .part-track { border-color: var(--primary); }
.part-switch input:checked + .part-track::after { transform: translateX(20px); background: var(--primary); }
.part-switch input:focus-visible + .part-track { outline: 2px solid var(--accent); outline-offset: 2px; }

.parts-presets { margin-top: 4px; }
.parts-summary { font-family: var(--code); font-size: 0.78rem; }
.mask-note { color: var(--accent); }

/* charts */
.spread-curve, .sac-chart, .map-chart { display: block; width: 100%; max-width: 760px; height: auto; margin: 8px 0; overflow: visible; }
.c-grid { stroke: var(--light-gray); stroke-width: 1; }
.c-ref { stroke: var(--gray); stroke-width: 1; stroke-dasharray: 4 4; }
.c-tick { fill: var(--gray); font-family: var(--code); font-size: 11px; }
.c-label { fill: var(--dark-gray); font-family: var(--code); font-size: 11px; }
.c-line, .c-mean { fill: none; stroke: var(--primary); stroke-width: 2.5; stroke-linejoin: round; }
.c-min, .c-max { fill: none; stroke: var(--accent); stroke-width: 1.5; stroke-linejoin: round; }
.c-max { stroke-dasharray: 5 3; }
.c-band { fill: var(--accent); opacity: 0.14; }
.c-paper { stroke: var(--text); stroke-width: 1.5; stroke-dasharray: 2 4; }
.c-paper-label { fill: var(--text); }
.c-cursor { stroke: var(--accent); stroke-width: 1; }
.c-dot { fill: var(--accent); stroke: var(--background); stroke-width: 2; }

.w-source { font-family: var(--code); font-size: 0.75rem; color: var(--gray); }
.c-legend { display: flex; flex-wrap: wrap; gap: 4px 16px; margin: 6px 0 0; }
.lg { display: inline-flex; align-items: center; gap: 6px; }
.lg::before { content: ""; display: inline-block; width: 18px; height: 0; border-top: 2.5px solid var(--primary); }
.lg-min::before { border-top: 1.5px solid var(--accent); }
.lg-max::before { border-top: 1.5px dashed var(--accent); }
.lg-band::before { height: 10px; border: 0; background: var(--accent); opacity: 0.3; }
.lg-paper::before { border-top: 1.5px dotted var(--text); }

.sac-result p { margin: 8px 0; max-width: 72ch; }

.k-options { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--light-gray); }
.k-option {
  appearance: none;
  padding: 6px 10px;
  border: 0;
  border-right: 1px solid var(--light-gray);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-family: var(--code);
  font-size: 0.78rem;
  cursor: pointer;
  border-radius: 0;
}
.k-option:last-child { border-right: 0; }
.k-option[aria-checked="true"] { background: var(--light-gray); color: var(--accent); }

progress { width: 100%; height: 6px; accent-color: var(--accent); }

.heat h3 { margin-top: 18px; }
.heat-canvas { display: block; width: 100%; max-width: 760px; height: auto; image-rendering: pixelated; border: 1px solid var(--light-gray); margin-top: 8px; }

.w-details { margin: 12px 0; }
.w-details summary { cursor: pointer; font-family: var(--heading); font-weight: var(--semi-bold); color: var(--primary); }

/* map */
.map-dot { fill: var(--gray); opacity: 0.55; cursor: pointer; }
.map-dot.has { fill: var(--accent); opacity: 0.9; }
.map-dot.current { stroke: var(--text); stroke-width: 2; opacity: 1; }
.map-dot:hover { opacity: 1; }
.map-filter .k-option { font-size: 0.9rem; min-width: 2.6rem; }

/* tables from the papers */
.paper-body .results-table { width: 100%; min-width: 520px; border-collapse: collapse; margin: 12px 0; overflow-wrap: normal; }
.paper-body .results-table th, .paper-body .results-table td { padding: 6px 8px; border-bottom: 1px solid var(--light-gray); text-align: left; vertical-align: top; }
.paper-body .results-table th { font-family: var(--code); font-size: 0.75rem; color: var(--gray); font-weight: 500; }

.paper-body li { text-align: left; }