/* Sprite Generator-specific controls, result views, and SEO modules. */
#generator-form .panel-heading { padding-bottom: 0; border-bottom: 0; }
.asset-type { position: relative; }
.asset-type__trigger { display: flex; width: 100%; min-height: 52px; align-items: center; justify-content: space-between; gap: 14px; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); text-align: left; }
.asset-type__trigger:hover { border-color: var(--line-strong); }
.asset-type__trigger.is-open { border-color: var(--accent-strong); }
.asset-type__value { display: flex; min-width: 0; align-items: center; gap: 10px; }
.asset-type__copy { display: grid; min-width: 0; gap: 3px; }
.asset-type__copy strong { font: 700 13px/1.2 var(--ui); }
.asset-type__copy small { color: var(--muted-2); font: 500 10px/1.2 var(--body); }
.asset-type__icon { display: grid; width: 28px; height: 28px; flex: 0 0 auto; place-items: center; border: 1px solid var(--line-strong); border-radius: var(--radius-xs); color: var(--accent-strong); background: var(--paper); }
.asset-type__icon svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.asset-type__chevron { width: 16px; height: 16px; flex: 0 0 auto; fill: none; stroke: var(--muted); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform var(--ssm-duration-fast) ease; }
.asset-type__trigger.is-open .asset-type__chevron { transform: rotate(180deg); }
.asset-type__menu { position: absolute; z-index: 10; top: calc(100% + 6px); right: 0; left: 0; display: grid; max-height: 264px; gap: 4px; overflow-y: auto; padding: 6px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--paper); box-shadow: var(--ssm-shadow-menu); scrollbar-color: var(--line-strong) transparent; scrollbar-width: thin; }
.asset-type__option { display: flex; width: 100%; min-height: 44px; align-items: center; gap: 11px; padding: 8px 10px; border: 1px solid transparent; border-radius: var(--radius-xs); background: transparent; text-align: left; }
.asset-type__option:hover, .asset-type__option:focus-visible { border-color: var(--line-strong); background: var(--wash); }
.asset-type__option.is-selected { border-color: var(--accent-strong); background: var(--accent-soft); }
.asset-type__option > span:last-child { min-width: 0; }
.asset-type__option strong { font: 700 12px/1.2 var(--ui); }
.asset-type__option small { display: block; margin-top: 3px; color: var(--muted-2); font: 500 10px/1.2 var(--body); }

.reference-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.reference-button { display: flex; min-width: 0; min-height: 66px; align-items: center; gap: 10px; padding: 10px 11px; border: 1px dashed var(--line-strong); border-radius: var(--radius-sm); background: var(--paper); text-align: left; }
.reference-button:hover { border-color: var(--accent-strong); background: var(--accent-soft); }
.reference-button > span:last-child { min-width: 0; font: 700 12px/1.25 var(--ui); }
.reference-button small { display: block; margin-top: 4px; overflow: hidden; color: var(--muted-2); font: 500 10px/1.2 var(--body); text-overflow: ellipsis; white-space: nowrap; }
.button-icon { display: inline-grid; width: 28px; height: 28px; flex: 0 0 auto; place-items: center; border: 1px solid var(--line-strong); border-radius: var(--radius-xs); font: 800 9px/1 var(--mono); }
.button-icon svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.page-overview .overview-row > div:first-child, .page-overview .overview-row p { width: 100%; max-width: none; }
.reference-selected { display: flex; align-items: center; gap: 12px; padding: 10px; border: 1px solid #5e8b48; border-radius: var(--radius-sm); background: var(--accent-soft); }
.reference-thumb { display: grid; width: 56px; height: 56px; flex: 0 0 auto; place-items: center; border: 1px solid var(--line); }
.reference-thumb img { width: 38px; height: 48px; object-fit: contain; image-rendering: pixelated; }
.reference-selected strong, .reference-selected span { display: block; }
.reference-selected strong { font-size: 13px; }
.reference-selected span { margin-top: 2px; color: var(--muted); font-size: 11px; }

.perspective-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.perspective-option { display: grid; min-width: 0; gap: 6px; padding: 6px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); font: 700 11px/1.2 var(--ui); }
.perspective-option:hover { border-color: var(--line-strong); }
.perspective-option.is-selected { border-color: var(--accent-strong); background: transparent; box-shadow: none; }
.perspective-image { display: grid; height: 54px; place-items: center; overflow: hidden; background: transparent; }
.perspective-image img { width: 64%; height: 50px; object-fit: contain; image-rendering: pixelated; }

.size-controls { display: grid; gap: 10px; }
.size-controls .field-label { margin: 0; }
.size-row { display: grid; grid-template-columns: 18px minmax(80px, 1fr) 60px 18px; align-items: center; gap: 9px; }
.size-row > label { color: var(--ink); font: 750 12px/1 var(--mono); }
.size-row > span { color: var(--muted-2); font: 650 10px/1 var(--mono); }
input[type="range"] { width: 100%; height: 6px; appearance: none; border-radius: 3px; background: linear-gradient(90deg, var(--accent-strong) var(--range-pct, 42.86%), var(--line) var(--range-pct, 42.86%)); }
input[type="range"]::-webkit-slider-thumb { width: 17px; height: 17px; appearance: none; border: 2px solid var(--accent-strong); border-radius: 50%; background: var(--paper); box-shadow: 0 1px 3px rgba(17,24,32,.2); }
input[type="range"]::-moz-range-thumb { width: 15px; height: 15px; border: 2px solid var(--accent-strong); border-radius: 50%; background: var(--paper); }
.number-field { width: 60px; height: 36px; padding: 5px 4px; border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink); background: var(--paper); text-align: center; font: 700 12px/1 var(--mono); }
.size-presets { display: flex; gap: 6px; padding-left: 27px; }
.size-presets button { min-width: 42px; min-height: 30px; padding: 5px 8px; border: 1px solid var(--line); border-radius: var(--radius-xs); color: var(--muted); background: var(--paper); font: 700 10px/1 var(--mono); }
.size-presets button.is-selected { border-color: var(--accent-strong); color: var(--ink); background: var(--accent); }

.advanced-settings { margin: 24px 0 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.advanced-settings summary { display: flex; min-height: 46px; align-items: center; justify-content: space-between; color: var(--muted); font: 700 12px/1 var(--ui); list-style: none; }
.advanced-settings summary::-webkit-details-marker { display: none; }
.advanced-settings summary span { font-size: 18px; font-weight: 400; transition: transform var(--ssm-duration-fast); }
.advanced-settings[open] summary span { transform: rotate(45deg); }
.advanced-content { padding: 0 0 20px; }
.advanced-content .field-group { margin-top: 4px; }
.direction-grid { display: grid; max-width: 300px; grid-template-columns: repeat(3, 1fr); gap: 5px; }
.direction-grid button { display: grid; min-height: 68px; place-items: center; gap: 2px; padding: 5px; border: 1px solid var(--line); border-radius: var(--radius-xs); background: var(--paper); }
.direction-grid button.is-selected { border-color: var(--accent-strong); background: var(--accent-soft); }
.direction-grid img { width: 32px; height: 36px; object-fit: contain; image-rendering: pixelated; }
.direction-grid small { color: var(--muted); font: 700 9px/1 var(--mono); }
.auto-direction { display: grid; width: 34px; height: 34px; place-items: center; border: 1px dashed var(--accent-strong); border-radius: 50%; color: var(--accent-strong); font: 700 7px/1 var(--mono); }

.generate-action { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 18px; }
.generate-action > span strong, .generate-action > span small { display: block; }
.generate-action > span strong { color: var(--warning); font: 750 10px/1.2 var(--mono); text-transform: uppercase; }
.generate-action > span small { margin-top: 4px; color: var(--muted-2); font-size: 10px; }

.example-tabs { display: flex; margin-bottom: 14px; border-bottom: 1px solid var(--line); }
.example-tabs button { min-height: 38px; padding: 7px 14px; border: 0; border-bottom: 3px solid transparent; color: var(--muted); background: transparent; font: 700 11px/1 var(--ui); }
.example-tabs button.is-selected { border-color: var(--accent-strong); color: var(--ink); }
.example-gallery { display: grid; grid-template-columns: 1.08fr .92fr; grid-template-rows: repeat(2, 246px); gap: 10px; }
.example-card { min-width: 0; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); }
.example-card--main { grid-row: 1 / 3; }
.example-image { display: grid; height: calc(100% - 58px); place-items: center; overflow: hidden; }
.example-card--main .example-image { height: calc(100% - 58px); }
.example-image img { width: 72%; height: 86%; object-fit: contain; image-rendering: pixelated; }
.example-card--main .example-image img { width: 76%; height: 88%; }
.example-card > div:last-child { display: flex; min-height: 58px; flex-direction: column; justify-content: center; padding: 8px 11px; border-top: 1px solid var(--line); }
.example-card strong, .example-card span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.example-card strong { font-size: 12px; }
.example-card span { color: var(--muted-2); font: 650 9px/1.4 var(--mono); }
.dynamic-note { display: flex; align-items: center; gap: 8px; margin: 14px 0 0; color: var(--muted); font-size: 11px; }
.dynamic-note > span { display: inline-grid; width: 18px; height: 18px; place-items: center; border-radius: 50%; color: var(--info); background: var(--info-soft); font: 800 10px/1 var(--mono); }

.history-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.history-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); }
.history-image { display: grid; aspect-ratio: 1.28 / 1; place-items: center; overflow: hidden; border-bottom: 1px solid var(--line); }
.history-image img { width: 62%; height: 84%; object-fit: contain; image-rendering: pixelated; }
.history-image--empty { color: var(--danger); background: var(--danger-soft); font: 750 26px/1 var(--mono); }
.history-meta { position: relative; display: grid; gap: 3px; padding: 10px; }
.history-meta strong { padding-right: 64px; overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.history-meta small { color: var(--muted-2); font: 650 9px/1.4 var(--mono); }
.history-status { position: absolute; top: 10px; right: 10px; font: 750 8px/1 var(--mono); text-transform: uppercase; }
.history-status--complete { color: var(--accent-strong); }
.history-status--failed { color: var(--danger); }
.history-status--progress { color: var(--info); }
.history-card--generating .history-image { background: var(--info-soft); }
.progress-pixel { width: 44px; height: 44px; border: 5px solid rgba(25,127,139,.2); border-top-color: var(--info); animation: spin 800ms steps(8) infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.seo-section { padding: 82px 0; scroll-margin-top: 72px; }
.seo-section--wash { background: var(--wash); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); box-shadow: 0 0 0 100vmax var(--wash); clip-path: inset(0 -100vmax); }
.section-heading { margin-bottom: 38px; }
.section-heading > div { max-width: 780px; }
.section-heading h2, .definition-copy h2, .workflow-copy h2, .seo-cta h2 { max-width: 680px; margin-bottom: 0; font-size: 34px; }
.section-heading > div > p:not(.eyebrow) { margin: 14px 0 0; color: var(--muted); }

.definition-section { display: grid; grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr); align-items: center; gap: clamp(42px, 7vw, 96px); }
.definition-copy > p:not(.eyebrow), .workflow-copy > p:not(.eyebrow) { margin: 18px 0 0; color: var(--muted); }
.asset-atlas { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.asset-atlas > img { width: 100%; height: clamp(240px, 30vw, 360px); object-fit: contain; image-rendering: pixelated; }
.asset-atlas figcaption { display: flex; min-height: 64px; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 16px; border-top: 1px solid var(--line); background: var(--paper); }
.asset-atlas figcaption span { color: var(--muted-2); font: 700 9px/1.3 var(--mono); text-transform: uppercase; }
.asset-atlas figcaption strong { font-size: 13px; text-align: right; }

.input-methods { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.input-methods article { display: grid; min-height: 230px; grid-template-columns: 48px minmax(0, 1fr); gap: 20px; padding: 28px; }
.input-methods article + article { border-left: 1px solid var(--line); }
.method-marker { display: grid; width: 38px; height: 38px; place-items: center; border: 1px solid var(--ink); border-radius: var(--radius-xs); color: var(--ink); background: transparent; }
.method-marker svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.input-methods p { margin: 0; color: var(--muted); font-size: 13px; }

.asset-strip { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.asset-strip figure { min-width: 0; margin: 0; padding: 12px; border-right: 1px solid var(--line); }
.asset-strip figure:last-child { border-right: 0; }
.asset-crop { display: grid; width: 100%; aspect-ratio: 1; place-items: center; overflow: hidden; background: var(--checker); }
.asset-crop img { width: 92%; height: 92%; object-fit: contain; image-rendering: pixelated; }
.asset-strip figcaption { padding: 10px 2px 0; color: var(--muted); font: 750 9px/1.2 var(--mono); text-align: center; text-transform: uppercase; }
.range-note { max-width: 780px; margin: 24px 0 0; color: var(--muted); }

.style-layout { display: grid; grid-template-columns: minmax(430px, 1.04fr) minmax(0, .96fr); align-items: center; gap: clamp(40px, 6vw, 86px); }
.view-showcase { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.view-showcase figure { min-width: 0; margin: 0; border-right: 1px solid var(--line); }
.view-showcase figure:last-child { border-right: 0; }
.view-showcase img { width: 100%; aspect-ratio: 1; object-fit: contain; image-rendering: pixelated; }
.view-showcase figcaption { padding: 10px; border-top: 1px solid var(--line); background: var(--paper); font: 750 9px/1 var(--mono); text-align: center; text-transform: uppercase; }
.capability-list { border-top: 1px solid var(--line); }
.capability-list article { padding: 18px 0; border-bottom: 1px solid var(--line); }
.capability-list h3 { margin-bottom: 5px; font-size: 15px; }
.capability-list p { margin: 0; color: var(--muted); font-size: 13px; }

.process-grid { display: grid; margin: 0; padding: 0; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); list-style: none; }
.process-grid li { min-height: 238px; padding: 24px; border-right: 1px solid var(--line); }
.process-grid li:last-child { border-right: 0; }
.step-number { display: block; margin-bottom: 28px; color: var(--accent-strong); font: 750 10px/1 var(--mono); }
.process-grid p { margin: 0; color: var(--muted); font-size: 13px; }

.workflow-section { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); align-items: center; gap: clamp(48px, 8vw, 110px); }
.workflow-checks { margin: 0; border-top: 1px solid var(--line); }
.workflow-checks div { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 22px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.workflow-checks dt { color: var(--accent-strong); font: 750 10px/1.4 var(--mono); text-transform: uppercase; }
.workflow-checks dd { margin: 0; color: var(--muted); font-size: 13px; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { padding: 20px 0; border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; font: 700 16px/1.35 var(--display); }
.faq-list p { max-width: 760px; margin: 12px 0 0; color: var(--muted); }
.related-tools { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.related-tools a { display: grid; min-height: 94px; grid-template-columns: 40px minmax(0, 1fr) auto; align-items: center; gap: 14px; padding: 17px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); }
.related-tools a:hover { border-color: var(--accent-strong); }
.related-icon { display: grid; width: 38px; height: 38px; place-items: center; border: 1px solid var(--ink); border-radius: var(--radius-xs); color: var(--ink); background: transparent; font: 800 9px/1 var(--mono); }
.related-icon svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.related-tools strong, .related-tools small { display: block; }
.related-tools strong { font-size: 14px; }
.related-tools small { margin-top: 4px; color: var(--muted-2); font-size: 10px; }
.seo-cta { display: flex; align-items: end; justify-content: space-between; gap: 40px; padding: 68px 0 10px; }
.seo-cta p:not(.eyebrow) { max-width: 620px; margin: 14px 0 0; color: var(--muted); }

@media (max-width: 1180px) {
  .page-overview .overview-row p { font-size: 15px; }
  .example-gallery { grid-template-rows: repeat(2, 218px); }
  .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-grid li:nth-child(2) { border-right: 0; }
  .process-grid li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 920px) {
  .seo-section { padding: 68px 0; }
  .definition-section, .style-layout, .workflow-section { grid-template-columns: 1fr; }
  .definition-section, .style-layout { gap: 38px; }
  .workflow-section { gap: 34px; }
  .asset-atlas { width: min(680px, 100%); }
  .asset-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .asset-strip figure:nth-child(3) { border-right: 0; }
  .asset-strip figure:nth-child(-n+3) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 620px) {
  .page-overview .overview-row p { font-size: 14px; }
  .reference-actions { grid-template-columns: 1fr; }
  .perspective-grid { gap: 5px; }
  .perspective-option { padding: 5px; font-size: 10px; }
  .perspective-image { height: 46px; }
  .perspective-image img { height: 44px; }
  .size-row { grid-template-columns: 18px minmax(60px, 1fr) 54px 16px; gap: 7px; }
  .number-field { width: 54px; }
  .size-presets { display: grid; grid-template-columns: repeat(4, 1fr); padding-left: 0; }
  .size-presets button { min-width: 0; }
  .generate-action { align-items: stretch; flex-direction: column; }
  .generate-action .primary-button { width: 100%; }
  .example-gallery { grid-template-columns: 1fr 1fr; grid-template-rows: 300px 190px; }
  .example-card--main { grid-column: 1 / 3; grid-row: auto; }
  .example-image img { width: 68%; }
  .history-grid { grid-template-columns: 1fr; }
  .section-heading h2, .definition-copy h2, .workflow-copy h2, .seo-cta h2 { font-size: 28px; }
  .input-methods, .process-grid, .related-tools { grid-template-columns: 1fr; }
  .input-methods article { min-height: 0; grid-template-columns: 40px minmax(0, 1fr); padding: 22px 0; }
  .input-methods article + article { border-top: 1px solid var(--line); border-left: 0; }
  .asset-strip figure { padding: 7px; }
  .asset-strip figcaption { font-size: 8px; }
  .view-showcase { grid-template-columns: 1fr; }
  .view-showcase figure { display: grid; grid-template-columns: 1fr 72px; border-right: 0; border-bottom: 1px solid var(--line); }
  .view-showcase figure:last-child { border-bottom: 0; }
  .view-showcase img { max-height: 180px; }
  .view-showcase figcaption { display: grid; place-items: center; border-top: 0; border-left: 1px solid var(--line); }
  .process-grid li, .process-grid li:nth-child(2) { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .process-grid li:last-child { border-bottom: 0; }
  .step-number { margin-bottom: 18px; }
  .asset-atlas figcaption { align-items: start; flex-direction: column; gap: 4px; }
  .asset-atlas figcaption strong { text-align: left; }
  .workflow-checks div { grid-template-columns: 78px minmax(0, 1fr); }
  .seo-cta { align-items: stretch; flex-direction: column; }
  .seo-cta .primary-button { width: 100%; }
}