:root {
  color-scheme: light;
  --ink: #202020;
  --muted: #565656;
  --line: #969696;
  --editor: #808080;
  --surface: #d0d0d0;
  --surface-raised: #e2e2e2;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; color: var(--ink); background: #b7b7b7; }
button, input, select { font: inherit; }
button, select, input[type="range"] { touch-action: manipulation; }

.app-shell { width: min(1400px, calc(100% - 32px)); height: 100dvh; min-height: 100dvh; margin: 0 auto; padding: 12px 0; display: grid; grid-template-rows: auto minmax(0, 1fr); gap: 9px; }
.intro { max-width: 1080px; display: flex; align-items: baseline; flex-wrap: wrap; column-gap: 12px; }
.eyebrow { margin: 0; color: var(--muted); font-size: .66rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin: 0; font-size: clamp(1.45rem, 2.6vw, 2.25rem); font-weight: 680; letter-spacing: -.04em; line-height: 1; }
.intro > p:last-child { flex: 1 1 390px; margin: 2px 0 0; color: var(--muted); font-size: .78rem; line-height: 1.35; }

.workbench { min-height: 0; display: grid; grid-template-columns: 276px minmax(0, 1fr); border: 1px solid #777; border-radius: 8px; overflow: hidden; background: var(--surface); }
.controls { overflow: auto; padding: 15px 17px; border-right: 1px solid var(--line); background: #c7c7c7; }
.control-group { margin-bottom: 14px; }
.control-group label { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 7px; font-size: .82rem; font-weight: 750; }
.settings-accordion { margin: 0 0 7px; border: 1px solid #969696; border-radius: 5px; overflow: hidden; background: #d0d0d0; }
.settings-accordion-trigger { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 34px; border: 0; padding: 7px 9px; background: #c3c3c3; color: var(--ink); cursor: pointer; font-size: .78rem; font-weight: 750; text-align: left; }
.settings-accordion-trigger > span { display: inline-block; font-size: 1rem; line-height: 1; transition: transform .12s ease; }
.settings-accordion-trigger[aria-expanded="true"] { background: #b7b7b7; }
.settings-accordion-trigger[aria-expanded="true"] > span { transform: rotate(180deg); }
.settings-accordion-panel { display: grid; gap: 7px; padding: 9px; background: var(--surface); }
.settings-accordion-panel[hidden] { display: none; }
.settings-accordion-panel .control-label { margin: 2px 0 0; }
.settings-action-button { min-height: 34px; border: 1px solid #777; border-radius: 5px; background: var(--surface-raised); color: var(--ink); cursor: pointer; font-size: .76rem; font-weight: 700; }
select { width: 100%; border: 1px solid #777; border-radius: 5px; background: var(--surface-raised); color: var(--ink); padding: 8px 9px; }
input[type="range"] { width: 100%; margin: 0; accent-color: #3d3d3d; }
output { min-width: 28px; color: var(--ink); text-align: right; }
.control-label { display: block; margin-bottom: 7px; font-size: .82rem; font-weight: 750; }
.orientation-control { padding-top: 1px; }
.orientation-buttons { display: grid; grid-template-columns: repeat(2, 1fr); gap: 7px; }
.orientation-button, .crop-actions button, .action-grid button, .import-control > button { border: 1px solid #777; border-radius: 5px; background: var(--surface-raised); color: var(--ink); cursor: pointer; }
.orientation-button { display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 36px; font-size: .78rem; font-weight: 700; }
.orientation-button > span:first-child { font-size: 1.05rem; line-height: 1; }
.orientation-button.active { background: #8e8e8e; border-color: #505050; color: #111; }
.crop-control { padding-top: 4px; border-top: 1px solid var(--line); }
.crop-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; margin-top: 8px; }
.crop-actions button { flex: 1 1 0; min-width: 0; padding: 8px 9px; font-size: .76rem; }
.crop-actions button:disabled { cursor: default; color: var(--muted); opacity: .65; }
.toggle-control { align-items: center; justify-content: flex-start !important; margin: 10px 0 0 !important; font-size: .76rem !important; font-weight: 700 !important; }
.toggle-control input { width: 16px; height: 16px; margin: 0; accent-color: #3d3d3d; }
.crop-control p, .import-control p, .export-control p { margin: 8px 0 0; color: var(--muted); font-size: .72rem; line-height: 1.35; }
.import-control { margin-bottom: 0; padding-top: 2px; }
.import-control > button, #choose-images { width: 100%; padding: 9px; border: 1px solid #777; border-radius: 5px; background: var(--surface-raised); color: var(--ink); cursor: pointer; font-weight: 700; font-size: .78rem; }
.import-control input[type="file"], #image-import { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.color-control { padding-top: 13px; border-top: 1px solid var(--line); }
.color-picker { align-items: center; margin-top: 8px !important; color: var(--muted); font-size: .74rem !important; }
.color-picker input { width: 34px; height: 26px; padding: 1px; border: 1px solid #777; border-radius: 4px; background: var(--surface-raised); }
.rights-control { padding-top: 0; border-top: 0; }
.rights-accordion { margin: 0 0 9px; border: 1px solid #999; border-radius: 5px; background: #d7d7d7; overflow: hidden; }
.accordion-heading { display: flex; align-items: center; min-height: 37px; }
.accordion-trigger { display: flex; flex: 1 1 auto; align-items: center; justify-content: space-between; min-width: 0; min-height: 37px; border: 0 !important; border-radius: 0 !important; padding: 8px 9px !important; background: #cecece !important; color: var(--ink); text-align: left; }
.accordion-trigger span { display: inline-block; font-size: 1rem; line-height: 1; transition: transform .12s ease; }
.accordion-trigger[aria-expanded="true"] { background: #c4c4c4 !important; }
.accordion-trigger[aria-expanded="true"] span { transform: rotate(180deg); }
.accordion-toggle { flex: 0 0 auto; margin: 0 9px 0 7px !important; white-space: nowrap; }
.accordion-panel { display: grid; gap: 7px; padding: 9px; border-top: 1px solid #999; background: var(--surface); }
.accordion-panel[hidden], .watermark-mode[hidden], .watermark-logo-color-fields[hidden] { display: none; }
.watermark-mode { display: grid; gap: 7px; }
.field-help { padding-bottom: 2px; }
.rights-control label:not(.toggle-control) { display: block; margin: 0; font-size: .72rem; font-weight: 700; }
.rights-control input[type="text"], .rights-control input[type="number"], .rights-control textarea { width: 100%; border: 1px solid #777; border-radius: 4px; padding: 6px 7px; background: var(--surface-raised); color: var(--ink); font-size: .76rem; resize: vertical; }
.rights-control button { border: 1px solid #777; border-radius: 4px; padding: 7px; background: var(--surface-raised); color: var(--ink); cursor: pointer; font-size: .74rem; font-weight: 700; }
.rights-control input[type="file"] { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); }
.rights-control p { margin: 0; color: var(--muted); font-size: .7rem; line-height: 1.35; }
.actions-control { padding-top: 13px; border-top: 1px solid var(--line); }
.action-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; }
.action-grid button { min-width: 0; min-height: 35px; padding: 7px 8px; font-size: .75rem; font-weight: 700; }
.action-grid button:disabled { cursor: default; color: var(--muted); opacity: .65; }
.export-control { padding-top: 0; border-top: 0; }
.export-options { display: grid; grid-template-columns: 1fr 1fr; gap: 7px 8px; margin-bottom: 9px; }
.export-options label { margin: 0; color: var(--muted); font-size: .72rem; font-weight: 700; }
.export-options select { padding: 7px 8px; font-size: .78rem; }
.export-control > button { width: 100%; border: 1px solid #414141; border-radius: 5px; padding: 10px; background: #4a4a4a; color: #fff; cursor: pointer; font-weight: 750; font-size: .8rem; }
.export-control > button:disabled { cursor: wait; opacity: .65; }

.stage { min-width: 0; min-height: 0; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; padding: clamp(12px, 2vw, 24px); background: var(--editor); }
.stage-meta { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 9px; color: #242424; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.stage-meta strong { color: #101010; font-size: .69rem; letter-spacing: .04em; text-align: right; }
.preview-view-controls { display: flex; align-items: center; justify-content: flex-end; gap: 5px; flex-wrap: wrap; letter-spacing: normal; text-transform: none; }
.preview-view-controls button { min-height: 26px; border: 1px solid #666; border-radius: 4px; padding: 4px 7px; background: #d7d7d7; color: var(--ink); cursor: pointer; font-size: .68rem; font-weight: 700; }
.preview-view-controls button.active { background: #575757; border-color: #3f3f3f; color: #fff; }
.single-frame-navigation { display: inline-flex; align-items: center; gap: 4px; }
.single-frame-navigation output { min-width: 56px; color: #202020; text-align: center; font-size: .66rem; font-weight: 700; }
.preview-fit { min-height: 0; min-width: 0; display: grid; place-items: center; overflow: hidden; }
.preview-canvas { display: flex; flex: 0 0 auto; width: var(--series-width, 1px); height: var(--frame-height, 1px); gap: var(--preview-frame-gap, 0px); align-items: stretch; }
.frame-page { position: relative; flex: 0 0 var(--frame-width, 1px); width: var(--frame-width, 1px); height: var(--frame-height, 1px); overflow: hidden; outline: 1px dashed rgba(20, 20, 20, .74); outline-offset: -1px; }
.panel { position: absolute; z-index: 1; display: grid; place-items: center; overflow: hidden; background: #d0d0d0; color: var(--muted); cursor: pointer; touch-action: none; }
.panel.has-image { cursor: grab; }
.panel.has-image:active { cursor: grabbing; }
.panel.selected { outline: 2px solid #111; outline-offset: -2px; z-index: 3; }
.panel.placeholder { background: #bdbdbd; }
.panel.placeholder span { white-space: pre-line; color: rgba(20, 20, 20, .62); font-size: clamp(.55rem, 1.7vw, 1rem); font-weight: 700; text-align: center; }
.panel img { position: absolute; width: 100%; height: 100%; object-fit: cover; transform-origin: center; user-select: none; -webkit-user-drag: none; pointer-events: none; }
.panel small { position: absolute; right: 5px; bottom: 4px; padding: 2px 4px; border-radius: 2px; background: rgba(20, 20, 20, .62); color: #fff; font-size: 9px; line-height: 1; }
.overlay-item { position: absolute; z-index: 5; max-width: 88%; color: #fff; cursor: grab; user-select: none; touch-action: none; transform: translate(-50%, -50%); white-space: pre-wrap; text-align: center; line-height: 1.12; }
.overlay-item:active { cursor: grabbing; }
.overlay-item.watermark { z-index: 6; }
.overlay-item img, .overlay-item canvas { display: block; max-width: none; height: auto; pointer-events: none; }
.legend { margin: 9px 0 0; color: #242424; font-size: .72rem; }
.legend i { display: inline-block; width: 18px; border-top: 1px dashed currentColor; vertical-align: middle; }

.mobile-toolbar { display: none; }

@media (max-width: 760px) {
  html, body { overflow-x: hidden; }
  .app-shell { width: 100%; height: auto; min-height: 100svh; padding: max(10px, env(safe-area-inset-top)) 10px calc(68px + env(safe-area-inset-bottom)); display: block; }
  .intro { display: block; margin-bottom: 8px; }
  h1 { margin: 5px 0; }
  .intro > p:last-child { display: none; }
  .workbench { display: block; min-height: 0; border: 1px solid #777; }
  .stage { height: min(43svh, 360px); min-height: 220px; padding: 11px 9px; }
  .legend { display: none; }
  .controls { display: none; position: fixed; z-index: 20; left: 8px; right: 8px; bottom: calc(57px + env(safe-area-inset-bottom)); max-height: min(36svh, 330px); overflow-y: auto; padding: 13px 14px; border: 1px solid #666; border-radius: 7px; background: #c7c7c7; }
  .controls[data-mobile-panel]:not([data-mobile-panel=""]) { display: block; }
  .controls .control-group { display: none; margin-bottom: 12px; }
  .controls[data-mobile-panel="layout"] [data-mobile-panel="layout"],
  .controls[data-mobile-panel="layout"] [data-mobile-panel="spacing"],
  .controls[data-mobile-panel="image"] [data-mobile-panel="image"],
  .controls[data-mobile-panel="color"] [data-mobile-panel="color"],
  .controls[data-mobile-panel="rights"] [data-mobile-panel="rights"],
  .controls[data-mobile-panel="export"] [data-mobile-panel="export"],
  .controls[data-mobile-panel="actions"] [data-mobile-panel="actions"] { display: block; }
  .mobile-toolbar { position: fixed; z-index: 21; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 1px; padding: 7px 8px calc(7px + env(safe-area-inset-bottom)); border-top: 1px solid #5f5f5f; background: #c7c7c7; }
  .mobile-toolbar button { min-width: 0; min-height: 38px; border: 1px solid #777; border-radius: 5px; background: var(--surface-raised); color: var(--ink); font-size: .72rem; font-weight: 700; }
  .mobile-toolbar button.active { background: #8e8e8e; border-color: #505050; }
}

@media (max-width: 460px) {
  h1 { font-size: 1.8rem; }
  .stage { padding: 10px 7px; }
  .stage-meta { display: block; line-height: 1.5; }
  .stage-meta strong { display: block; text-align: left; }
  .preview-view-controls { justify-content: flex-start; margin-top: 4px; }
  .preview-view-controls button { min-height: 24px; padding: 3px 6px; }
}