/* Slide-generation tuning controls. */
.visual-tuning { margin: 20px 0; padding: 16px; border: 1px solid #454545; border-radius: 8px; background: #282828; color: #f5f5f5; }
.visual-tuning summary { cursor: pointer; }
.visual-tuning summary span { display: block; font-size: 11px; color: #bcbcbc; margin-top: 5px; }
.visual-tuning p, .visual-tuning small { font-size: 12px; line-height: 1.7; color: #c4c4c4; }
.visual-tuning fieldset { border: 0; padding: 0; margin: 18px 0; min-width: 0; }
.visual-tuning legend { font-size: 13px; font-weight: 700; margin-bottom: 9px; color: #f5f5f5; }
.design-control { display: grid; gap: 6px; color: #f5f5f5; font-size: 12px; }
.design-control select { min-height: 34px; border: 1px solid #555; border-radius: 6px; padding: 6px 8px; background: #171717; color: #f5f5f5; font: inherit; }
.design-parameter-controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 16px; }
.template-design-meta { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: end; }
.template-design-meta .label { display: block; margin-bottom: 6px; color: #f5f5f5; font-size: 12px; }
.accent-color-controls { display: flex; flex-wrap: wrap; justify-content: flex-start; align-items: flex-start; gap: 4px; }
.accent-color-control { position: relative; display: block; width: 24px; height: 24px; margin: 0; border-radius: 0; background: transparent; cursor: default; }
.accent-color-control:focus-within { outline: 2px solid #9bb7c9; outline-offset: 2px; }
.template-design-meta > .secondary-button { white-space: nowrap; }
.font-control-row { display: flex; align-items: end; gap: 10px; }
.font-control-row select { flex: 1; min-width: 0; }
.font-control-row .secondary-button { flex: 0 0 auto; white-space: nowrap; }
.design-range-row { display: flex; align-items: center; gap: 8px; }
.design-range-row input { flex: 1; }
.design-range-row output { min-width: 38px; color: #c4c4c4; font-variant-numeric: tabular-nums; text-align: right; }
.tuning-refinements { margin-top: 18px; border-top: 1px solid #505050; }
.tuning-refinements > summary { padding-top: 14px; cursor: pointer; font-size: 13px; font-weight: 700; }
.tuning-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
.tuning-slider { display: grid; grid-template-columns: 1fr; gap: 7px; }
.tuning-slider-labels { display: flex; justify-content: space-between; gap: 12px; color: #d8d8d8; font-size: 11px; }
.tuning-slider input[type="range"] { width: 100%; }
.tuning-slider-output { justify-self: center; color: #fff; font-size: 12px; font-weight: 700; }
.tuning-check-row { display: flex; align-items: center; justify-content: center; gap: 7px; color: #f5f5f5; font-size: 12px; cursor: pointer; }
.tuning-check-row input { width: 15px; height: 15px; accent-color: #6ea8fe; }
.tuning-options button { padding: 5px; border: 2px solid #e0e6ed; border-radius: 7px; background: white; color: #344256; cursor: pointer; font: inherit; font-size: 11px; }
.tuning-options button[aria-pressed="true"] { border-color: #2563b8; background: #eff6ff; }
.tuning-options button:focus-visible { outline: 3px solid #2563b8; outline-offset: 3px; }
.tuning-options img { width: 100%; aspect-ratio: 3 / 2; display: block; margin-bottom: 6px; }
.visual-tuning .preset-row { flex-wrap: wrap; }
.visual-tuning .preset-row > * { min-width: 0; }
.visual-tuning #apply-tuning { margin-top: 14px; }
.slide-preview .sample-body { display: block; padding: 0; background: transparent; border: 0; overflow: hidden; }
#tuning-body-preview { width: 100%; height: 100%; display: block; object-fit: contain; pointer-events: none; }
.tuning-preview-label { color: #bcbcbc; font-size: 12px; margin: 0 0 10px; }
@media (max-width: 520px) { .design-parameter-controls, .template-design-meta { grid-template-columns: 1fr; } }
.visual-tuning h3 { font-size: 14px; margin: 22px 0 8px; }
.visual-tuning p { margin: 8px 0 12px; }
.visual-tuning button[aria-pressed="true"] > strong::before,
.visual-tuning button[aria-pressed="true"] > span::before { content: "✓ "; }

/* Keep every range control in the tuning UI close to the line-and-ring reference. */
input[type="range"] {
  --range-fill: #d4d7d8;
  --range-track: #4b5256;
  --range-thumb: #ffffff;
  --range-progress: 0%;
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 18px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  border-radius: 0;
  background: linear-gradient(to right, var(--range-fill) 0 var(--range-progress), var(--range-track) var(--range-progress) 100%);
}
input[type="range"]::-webkit-slider-thumb {
  width: 12px;
  height: 12px;
  margin-top: -5px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  background: var(--range-thumb);
  -webkit-appearance: none;
  appearance: none;
}
input[type="range"]::-moz-range-track {
  height: 2px;
  border-radius: 0;
  background: var(--range-track);
}
input[type="range"]::-moz-range-progress {
  height: 2px;
  border-radius: 0;
  background: var(--range-fill);
}
input[type="range"]::-moz-range-thumb {
  width: 8px;
  height: 8px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  background: var(--range-thumb);
}
input[type="range"]:focus-visible {
  outline: 2px solid #9bb7c9;
  outline-offset: 4px;
}

/* Four independent axes in the existing Generation columns. */
.generation-axis { margin-bottom: 22px; }
.visual-tuning .generation-axis h3, .generation-axis-heading { margin: 0 0 12px; font-size: 14px; }
.generation-axis + .generation-axis { border-top: 1px solid #505050; padding-top: 18px; }
.axis-details { margin-top: 12px; }
.axis-details > summary { font-size: 12px; line-height: 1.7; }
.axis-details-body { display: grid; gap: 16px; padding-top: 14px; }
.axis-details-body .template-design-meta { grid-template-columns: minmax(0, 1fr) auto; }
@media (max-width: 520px) { .axis-details-body .template-design-meta { grid-template-columns: 1fr; } }
.generation-help { color: var(--muted); font-size: 12px; line-height: 1.7; }
.visual-tuning .design-parameter-controls { grid-template-columns: 1fr; }
.visual-tuning fieldset { margin: 10px 0; }
.slide-preview [data-preview-region] {
  display: flex; align-items: flex-start; justify-content: flex-start;
  padding: 0; border: 1px dashed #737373; border-radius: 0;
  background: transparent; color: #444; font: 12px/1.4 sans-serif;
  text-align: left; overflow: visible; box-shadow: none;
}
.slide-preview [data-preview-region] > span { padding: 1px 4px; background: #fff; color: #444; white-space: nowrap; }
.slide-preview [data-preview-region].is-active { border: 2px solid #2563b8; background: rgba(37,99,184,.04); }
.slide-preview [data-preview-region].is-disabled { display: none; }
.slide-preview.has-generated-preview [data-preview-region] { display: none; }

/* Tone controls: touchable presets, discrete sliders, and immediate samples. */
.writing-studio { display: grid; gap: 16px; margin: 18px 0 24px; min-width: 0; }
.writing-heading { display: flex; align-items: center; justify-content: space-between; }
.writing-heading strong { font-size: 13px; }
.writing-heading button { padding: 6px 8px; border: 0; border-radius: 6px; background: transparent; color: var(--muted); font: inherit; font-size: 11px; cursor: pointer; }
.writing-presets { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
.writing-presets button { display: grid; justify-items: start; gap: 5px; min-width: 0; padding: 12px 9px; border: 1px solid #454545; border-radius: 12px; background: #303030; color: var(--text); text-align: left; cursor: pointer; transition: background .15s, border-color .15s, transform .15s; }
.writing-presets button > span { display: grid; place-items: center; width: 32px; height: 32px; margin-bottom: 4px; border-radius: 9px; background: #454545; color: #e6e2ff; font: 600 17px Georgia, serif; }
.writing-presets button:nth-child(2) > span { font-family: Georgia, serif; color: #d5e4ff; }
.writing-presets button:nth-child(3) > span { font-family: sans-serif; color: #e8edc7; }
.writing-presets strong { font-size: 11px; font-weight: 600; white-space: nowrap; }
.writing-presets small { font-size: 10px; color: #b9b9b9; }
.writing-presets button[aria-pressed="true"] { background: #3b354c; border-color: #baa3f1; }
.writing-presets button[aria-pressed="true"] > span { background: #55456f; }
.writing-presets button:active { transform: scale(.97); }
.writing-studio button:focus-visible, .writing-more summary:focus-visible { outline: 2px solid #c6aff5; outline-offset: 3px; }
@media (hover: hover) { .writing-presets button:hover { border-color: #b6a2da; background: #393440; } }
.writing-axis { display: grid; gap: 3px; }
.writing-axis > span:first-child { display: flex; justify-content: space-between; font-size: 12px; }
.writing-axis output { padding: 2px 7px; border-radius: 6px; background: #39333f; color: #d6c5f4; font-size: 10px; }
.writing-axis input[type="range"] { width: 100%; height: 32px; --range-fill: #b59bdc; --range-thumb: #d7c3f5; }
.writing-axis input[type="range"]::-webkit-slider-runnable-track { height: 5px; border-radius: 8px; }
.writing-axis input[type="range"]::-webkit-slider-thumb { width: 18px; height: 18px; margin-top: -6.5px; border-color: #443951; box-shadow: 0 0 0 3px #b59bdc22; }
.writing-axis input[type="range"]::-moz-range-track, .writing-axis input[type="range"]::-moz-range-progress { height: 5px; border-radius: 8px; }
.writing-axis input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border-color: #443951; }
.writing-endpoints { display: flex; justify-content: space-between; color: #b9b9b9; font-size: 10px; }
.writing-endings { min-width: 0; margin: 0; padding: 0; border: 0; }
.writing-endings[hidden] { display: none; }
.writing-endings legend { margin-bottom: 8px; padding: 0; font-size: 12px; }
.writing-segments { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3px; padding: 4px; border-radius: 10px; background: #242424; }
.writing-segments label { position: relative; min-width: 0; cursor: pointer; }
.writing-segments input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.writing-segments span { display: grid; place-items: center; min-height: 36px; padding: 4px 3px; border-radius: 7px; color: #b9b9b9; font-size: 11px; transition: background .15s; }
.writing-segments input:checked + span { background: #4a405a; color: #f3eaff; box-shadow: 0 1px 4px #0003; }
.writing-segments input:focus-visible + span { outline: 2px solid #c6aff5; outline-offset: 1px; }
.writing-sample { padding: 13px 14px; border-radius: 12px; background: linear-gradient(120deg, #36303e, #303234); border: 1px solid #494052; }
.writing-sample > span { color: #cebce9; font-size: 10px; }
.writing-sample p { margin: 9px 0; color: #f1eaf9; font-size: 13px; line-height: 1.8; overflow-wrap: anywhere; }
.writing-sample small { color: #aaa4b0; font-size: 10px; }
.writing-more summary { color: #b9b9b9; cursor: pointer; font-size: 11px; }
.writing-more textarea { width: 100%; margin-top: 10px; min-height: 65px; resize: vertical; font-size: 12px; }
@media (prefers-reduced-motion: reduce) { .writing-studio * { transition: none !important; } }