/* Sylva · EPUB Finalizer */
.epub-view{padding-bottom:110px}.epub-heading{align-items:flex-start}.epub-heading .heading-actions{align-items:flex-start}.epub-heading-note{max-width:760px}
.epub-shell{display:grid;grid-template-columns:minmax(380px,470px) minmax(0,1fr);gap:24px;align-items:start}.epub-editor-panel,.epub-preview-panel{border:1px solid var(--line);border-radius:26px;background:color-mix(in srgb,var(--surface-2) 84%,transparent);min-width:0}.epub-editor-panel{position:sticky;top:82px;max-height:calc(100dvh - 118px);display:flex;flex-direction:column;overflow:hidden}.epub-local-banner{padding:18px 20px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--accent) 8%,var(--surface))}.epub-local-banner>span,.epub-section-head>span,.epub-subhead>div>span,.epub-preview-head>div>span{display:block;font-size:10px;letter-spacing:.14em;font-weight:800;color:var(--accent)}.epub-local-banner b{display:block;font-size:17px;margin:5px 0}.epub-local-banner p{margin:0;font-size:12px;line-height:1.55;color:var(--muted)}
.epub-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;padding:10px;border-bottom:1px solid var(--line);background:var(--surface)}.epub-tabs button{min-height:42px;border:0;border-radius:11px;background:transparent;color:var(--muted);font:700 11px/1.2 Inter,system-ui,sans-serif}.epub-tabs button.active{background:var(--accent-soft);color:var(--text)}.epub-panel-scroll{overflow:auto;padding:20px;min-height:0}.epub-tab-panel{display:none}.epub-tab-panel.active{display:block}.epub-section-head{margin-bottom:20px}.epub-section-head h3{font-size:25px;line-height:1.14;margin:6px 0 8px}.epub-section-head p{font-size:13px;line-height:1.6;color:var(--muted);margin:0}
.epub-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.epub-field{display:flex;flex-direction:column;gap:7px;min-width:0}.epub-field.span-2{grid-column:1/-1}.epub-field>span{font-size:11px;font-weight:750;color:var(--text)}.epub-field input,.epub-field select,.epub-field textarea{width:100%;min-height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);font:500 14px/1.5 Inter,system-ui,sans-serif;padding:10px 12px}.epub-field textarea{resize:vertical}.epub-field small{font-size:10px;line-height:1.45;color:var(--muted)}.epub-subsection{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.epub-subhead{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;margin-bottom:13px}.epub-subhead h4{font-size:18px;margin:4px 0 0}.epub-subhead>span{font-size:11px;color:var(--muted)}
.epub-cover-grid{display:grid;grid-template-columns:142px 1fr;gap:16px}.epub-cover-preview{aspect-ratio:2/3;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--surface);display:grid;place-items:center;text-align:center}.epub-cover-preview img{width:100%;height:100%;object-fit:contain}.epub-cover-preview div{padding:15px}.epub-cover-preview b,.epub-cover-preview span{display:block}.epub-cover-preview b{font-size:13px}.epub-cover-preview span{font-size:10px;color:var(--muted);margin-top:4px}.epub-cover-controls{display:flex;flex-direction:column;gap:8px}.epub-choice{display:grid;grid-template-columns:20px 1fr;gap:9px;align-items:flex-start;padding:10px;border:1px solid var(--line);border-radius:13px;background:var(--surface)}.epub-choice input{margin-top:3px}.epub-choice b,.epub-choice small{display:block}.epub-choice b{font-size:12px}.epub-choice small{font-size:10px;line-height:1.4;color:var(--muted);margin-top:3px}.epub-inline-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:2px}
.epub-toggle-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.epub-toggle{display:grid;grid-template-columns:22px 1fr;gap:10px;padding:12px;border:1px solid var(--line);border-radius:14px;background:var(--surface);align-items:flex-start}.epub-toggle input{margin-top:3px}.epub-toggle b,.epub-toggle small{display:block}.epub-toggle b{font-size:12px}.epub-toggle small{font-size:10px;line-height:1.45;color:var(--muted);margin-top:3px}.epub-chapter-list{display:flex;flex-direction:column;gap:8px}.epub-chapter-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(150px,.8fr);gap:10px;padding:11px;border:1px solid var(--line);border-radius:14px;background:var(--surface);align-items:center}.epub-chapter-check{display:grid;grid-template-columns:20px minmax(0,1fr);gap:8px;align-items:flex-start}.epub-chapter-check input{margin-top:3px}.epub-chapter-check b,.epub-chapter-check small{display:block;min-width:0}.epub-chapter-check b{font-size:12px;overflow:hidden;text-overflow:ellipsis}.epub-chapter-check small{font-size:10px;color:var(--muted);margin-top:3px}.epub-chapter-row>input{min-height:40px;border:1px solid var(--line);border-radius:11px;padding:8px 10px;background:var(--surface-2);color:var(--text);font-size:12px}
.epub-preset-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin-bottom:18px}.epub-preset{padding:13px 11px;border:1px solid var(--line);border-radius:15px;background:var(--surface);color:var(--text);text-align:left}.epub-preset.active{border-color:color-mix(in srgb,var(--accent) 50%,var(--line));background:var(--accent-soft)}.epub-preset b,.epub-preset span{display:block}.epub-preset b{font-size:13px}.epub-preset span{font-size:10px;line-height:1.4;color:var(--muted);margin-top:4px}.epub-style-note{margin-top:20px;padding:14px 15px;border:1px solid color-mix(in srgb,var(--accent) 22%,var(--line));border-radius:15px;background:var(--accent-soft)}.epub-style-note b{font-size:12px}.epub-style-note p{font-size:11px;line-height:1.55;color:var(--muted);margin:5px 0 0}
.epub-media-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:14px}.epub-media-head b,.epub-media-head span{display:block}.epub-media-head b{font-size:14px}.epub-media-head span{font-size:10px;color:var(--muted);margin-top:3px}.epub-image-list{display:flex;flex-direction:column;gap:12px}.epub-image-card{display:grid;grid-template-columns:112px minmax(0,1fr);gap:13px;padding:12px;border:1px solid var(--line);border-radius:17px;background:var(--surface)}.epub-image-card>img{width:112px;height:142px;object-fit:contain;border-radius:11px;background:var(--surface-2);border:1px solid var(--line)}.epub-image-body{min-width:0;display:flex;flex-direction:column;gap:10px}.epub-image-title{display:flex;justify-content:space-between;gap:10px}.epub-image-title b,.epub-image-title span{display:block}.epub-image-title b{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.epub-image-title span{font-size:10px;color:var(--muted);margin-top:3px}.epub-image-two{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:end}.epub-checkline{min-height:44px;display:flex;align-items:center;gap:7px;font-size:11px}.epub-empty{padding:18px;border:1px dashed var(--line);border-radius:15px;color:var(--muted);font-size:12px;text-align:center}.epub-empty.media{min-height:170px;display:grid;place-items:center;align-content:center;gap:6px}.epub-empty.media b{color:var(--text);font-size:14px}.epub-empty.media span{max-width:300px;line-height:1.5}
.epub-preview-panel{padding:22px;min-height:760px}.epub-preview-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;padding-bottom:18px;border-bottom:1px solid var(--line)}.epub-preview-head h2{font-size:29px;line-height:1.12;margin:5px 0 6px}.epub-preview-head p{font-size:12px;line-height:1.5;color:var(--muted);margin:0}.epub-preview-actions{display:flex;flex-direction:column;align-items:flex-end;gap:7px}.epub-preview-actions>span{font-size:10px;color:var(--muted)}.epub-preview-actions select{min-width:210px;height:42px;border:1px solid var(--line);border-radius:11px;background:var(--surface);color:var(--text);padding:8px 10px;font-size:12px}.epub-preview-stage{margin-top:20px;min-height:650px;display:grid;place-items:center;padding:24px;border:1px solid var(--line);border-radius:22px;background:color-mix(in srgb,var(--surface) 65%,var(--surface-2))}.epub-preview-stage iframe{width:min(100%,520px);height:640px;border:1px solid color-mix(in srgb,var(--text) 18%,var(--line));border-radius:8px;background:#fff;box-shadow:0 24px 50px rgba(0,0,0,.12)}
.epub-checks{margin-top:18px}.epub-check-summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 15px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}.epub-check-summary>div{display:flex;align-items:center;gap:11px}.epub-check-summary>div>span{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;font-weight:800}.epub-check-summary.good>div>span{background:color-mix(in srgb,#69a878 16%,transparent);color:#4c855b}.epub-check-summary.warn>div>span{background:color-mix(in srgb,#d09a4b 18%,transparent);color:#9a6b26}.epub-check-summary.bad>div>span{background:color-mix(in srgb,#c76565 16%,transparent);color:#9d4545}.epub-check-summary b,.epub-check-summary small{display:block}.epub-check-summary b{font-size:13px}.epub-check-summary small{font-size:10px;color:var(--muted);margin-top:2px}.epub-check-detail{display:grid;gap:7px;padding:10px 4px 0}.epub-check-detail p{margin:0;padding:10px 12px;border-radius:12px;background:var(--surface);font-size:11px;line-height:1.45}.epub-check-detail p b{display:inline-block;margin-right:8px}.epub-check-detail .error b{color:#a44848}.epub-check-detail .warning b{color:#9a6b26}.epub-check-detail .ok b{color:#4c855b}.epub-export-bar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}.epub-export-bar>div:first-child b,.epub-export-bar>div:first-child span{display:block}.epub-export-bar>div:first-child b{font-size:13px}.epub-export-bar>div:first-child span{font-size:10px;color:var(--muted);line-height:1.45;margin-top:3px}.epub-export-bar>div:last-child{display:flex;gap:8px;flex:0 0 auto}
html[data-theme="nature-dark"] .epub-editor-panel,html[data-theme="nature-light"] .epub-editor-panel,html[data-theme="nature-dark"] .epub-preview-panel,html[data-theme="nature-light"] .epub-preview-panel{background:color-mix(in srgb,var(--paper) 90%,transparent)}
@media(max-width:1180px){.epub-shell{grid-template-columns:390px minmax(0,1fr);gap:18px}.epub-preview-panel{padding:18px}.epub-preview-stage{padding:16px}.epub-preview-stage iframe{height:600px}.epub-panel-scroll{padding:17px}}
@media(max-width:980px){.epub-shell{grid-template-columns:1fr;gap:20px}.epub-editor-panel{position:relative;top:auto;max-height:none}.epub-panel-scroll{overflow:visible}.epub-preview-panel{min-height:0}.epub-preview-stage{min-height:560px}.epub-preview-stage iframe{height:600px}.epub-tabs{position:sticky;top:0;z-index:3}.epub-cover-grid{grid-template-columns:160px 1fr}}
@media(max-width:720px){.epub-tabs{grid-template-columns:1fr 1fr}.epub-form-grid,.epub-toggle-grid,.epub-preset-grid{grid-template-columns:1fr}.epub-field.span-2{grid-column:auto}.epub-cover-grid{grid-template-columns:1fr}.epub-cover-preview{width:170px;margin:0 auto}.epub-chapter-row{grid-template-columns:1fr}.epub-image-card{grid-template-columns:92px minmax(0,1fr)}.epub-image-card>img{width:92px;height:120px}.epub-preview-head,.epub-export-bar{flex-direction:column;align-items:stretch}.epub-preview-actions{align-items:stretch}.epub-preview-actions select{width:100%;min-width:0}.epub-export-bar>div:last-child{display:grid;grid-template-columns:1fr 1fr}.epub-preview-stage{padding:10px;min-height:520px}.epub-preview-stage iframe{width:100%;height:560px}.epub-section-head h3{font-size:23px}}
@media(max-width:500px){.epub-editor-panel,.epub-preview-panel{border-radius:22px}.epub-local-banner,.epub-panel-scroll,.epub-preview-panel{padding:15px}.epub-tabs{padding:8px}.epub-tabs button{min-height:44px;font-size:12px}.epub-field input,.epub-field select,.epub-field textarea{font-size:15px;min-height:44px}.epub-image-card{grid-template-columns:1fr}.epub-image-card>img{width:100%;height:190px}.epub-image-two{grid-template-columns:1fr}.epub-media-head{align-items:stretch;flex-direction:column}.epub-media-head .primary-btn{width:100%}.epub-preview-stage iframe{height:520px}.epub-preview-head h2{font-size:25px}.epub-export-bar>div:last-child{grid-template-columns:1fr}.epub-check-summary{align-items:flex-start}.epub-check-summary>div{align-items:flex-start}}
@media(pointer:coarse){.epub-tabs button,.epub-field input,.epub-field select,.epub-choice,.epub-toggle,.epub-checkline,.epub-preview-actions select,.epub-chapter-row>input{min-height:46px}.epub-preset{min-height:72px}.epub-image-title .outline-icon-btn{width:44px;height:44px}}


/* QA2 · leggibilità e respiro editor EPUB */
.epub-local-banner p{font-size:13px;line-height:1.6}
.epub-tabs button{font-size:12px;min-height:44px}
.epub-field>span{font-size:12px}.epub-field small{font-size:11px;line-height:1.5}
.epub-choice b,.epub-toggle b{font-size:13px}.epub-choice small,.epub-toggle small{font-size:11px;line-height:1.5}
.epub-subhead>span,.epub-cover-preview span,.epub-chapter-check small,.epub-preset span,.epub-image-title span,.epub-media-head span,.epub-preview-actions>span,.epub-check-summary small,.epub-export-bar>div:first-child span{font-size:11px}
.epub-chapter-check b{font-size:13px;line-height:1.35}.epub-chapter-row>input{font-size:13px;min-height:44px}
.epub-style-note b{font-size:13px}.epub-style-note p{font-size:12px;line-height:1.6}
.epub-checkline{font-size:12px}.epub-check-detail p{font-size:12px;line-height:1.5}
.epub-preview-head p{font-size:13px;line-height:1.55}.epub-preview-actions select{font-size:13px;min-height:44px}
.epub-export-bar>div:first-child b{font-size:14px}
@media(max-width:1180px) and (min-width:981px){.epub-shell{grid-template-columns:minmax(400px,440px) minmax(0,1fr)}}
@media(max-width:720px){.epub-section-head p{font-size:13px}.epub-local-banner b{font-size:18px}}
@media(pointer:coarse){.epub-field input,.epub-field select,.epub-field textarea,.epub-tabs button,.epub-preview-actions select,.epub-chapter-row>input{min-height:48px}.epub-inline-actions .soft-btn,.epub-media-head .primary-btn,.epub-export-bar button{min-height:46px}}


/* Beta 0.963 · EPUB tablet: un solo flusso, un solo scroll */
@media (max-width:1280px){
  .epub-shell{display:flex;flex-direction:column;gap:22px;width:100%;min-width:0}
  .epub-editor-panel,.epub-preview-panel{width:100%;min-width:0}
  .epub-editor-panel{position:relative;top:auto;max-height:none;overflow:visible}
  .epub-panel-scroll{overflow:visible;max-height:none;min-height:0}
  .epub-tabs{position:relative;top:auto;z-index:1}
  .epub-preview-panel{min-height:0;padding:22px}
  .epub-preview-stage{min-height:0;padding:22px}
  .epub-preview-stage iframe{width:min(100%,620px);height:680px}
}
@media (max-width:1024px){
  .epub-view{padding-bottom:104px}
  .epub-shell{gap:18px}
  .epub-editor-panel,.epub-preview-panel{border-radius:24px}
  .epub-local-banner{padding:18px}
  .epub-panel-scroll{padding:18px}
  .epub-preview-panel{padding:18px}
  .epub-tabs{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;padding:10px 12px}
  .epub-tabs button{font-size:13px;min-height:48px;padding:8px 6px}
  .epub-section-head h3{font-size:25px}
  .epub-section-head p,.epub-local-banner p,.epub-preview-head p{font-size:13px;line-height:1.62}
  .epub-preview-stage{padding:16px}
  .epub-preview-stage iframe{width:min(100%,600px);height:650px}
  .epub-export-bar{gap:14px}
}
@media (max-width:820px){
  .epub-heading{gap:14px}
  .epub-shell{gap:16px}
  .epub-local-banner,.epub-panel-scroll,.epub-preview-panel{padding:16px}
  .epub-tabs{grid-template-columns:1fr 1fr}
  .epub-tabs button{font-size:13px;min-height:50px}
  .epub-form-grid,.epub-toggle-grid,.epub-preset-grid{grid-template-columns:1fr}
  .epub-field.span-2{grid-column:auto}
  .epub-cover-grid{grid-template-columns:150px minmax(0,1fr)}
  .epub-chapter-row{grid-template-columns:1fr}
  .epub-preview-head{flex-direction:column;align-items:stretch}
  .epub-preview-actions{align-items:stretch}
  .epub-preview-actions select{width:100%;min-width:0}
  .epub-preview-stage{padding:12px}
  .epub-preview-stage iframe{width:min(100%,560px);height:620px}
  .epub-export-bar{flex-direction:column;align-items:stretch}
  .epub-export-bar>div:last-child{display:grid;grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  .epub-cover-grid{grid-template-columns:1fr}
  .epub-cover-preview{width:170px;margin-inline:auto}
  .epub-image-card{grid-template-columns:1fr}
  .epub-image-card>img{width:100%;height:190px}
  .epub-image-two{grid-template-columns:1fr}
  .epub-export-bar>div:last-child{grid-template-columns:1fr}
  .epub-preview-stage iframe{height:540px}
}

/* ===== 0.964 narrative themes · EPUB Finalizer chrome ===== */
html[data-theme="modern"] :is(.epub-editor-panel,.epub-preview-panel){background:rgba(255,255,255,.91);border-color:var(--line)}
html[data-theme="fantasy"] :is(.epub-editor-panel,.epub-preview-panel){background:rgba(42,40,29,.93);border-color:rgba(226,205,164,.14)}
html[data-theme="thriller"] :is(.epub-editor-panel,.epub-preview-panel){background:rgba(28,31,34,.94);border-color:rgba(236,239,240,.11)}
html[data-theme="cyberpunk"] :is(.epub-editor-panel,.epub-preview-panel){background:rgba(9,19,28,.95);border-color:rgba(0,217,237,.19);box-shadow:0 0 0 1px rgba(243,79,201,.025),0 18px 52px rgba(0,0,0,.30)}
html[data-theme="fantasy"] .epub-preview-head h2{font-family:Cinzel,Georgia,serif}
html[data-theme="cyberpunk"] .epub-preview-head h2{font-family:Orbitron,Inter,sans-serif;letter-spacing:.025em}
html[data-theme="thriller"] .epub-preview-head h2{font-family:"IBM Plex Sans",Inter,sans-serif;font-weight:600}
html[data-theme="cyberpunk"] .epub-preview-stage{background:linear-gradient(rgba(0,217,237,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(0,217,237,.025) 1px,transparent 1px),#08121a;background-size:30px 30px;border-color:rgba(0,217,237,.16)}

/* ===== 0.975 narrative palette hardening · EPUB =====
   Keep the export workspace aligned with the independent narrative palette
   instead of the internal Fantasy/Thriller alias. The iframe remains white:
   it previews the exported ebook, not the application chrome. */
:is(html[data-palette="arabesque"],html[data-palette="orchidea"],html[data-palette="foresta"]) :is(.epub-editor-panel,.epub-preview-panel){
  background:color-mix(in srgb,var(--theme-chrome) 94%,transparent)!important;
  border-color:var(--line)!important;
  color:var(--text)!important;
}
:is(html[data-palette="arabesque"],html[data-palette="orchidea"],html[data-palette="foresta"]) .epub-preview-stage{
  background:color-mix(in srgb,var(--theme-chrome-soft) 80%,var(--bg))!important;
  border-color:var(--line)!important;
}
:is(html[data-palette="arabesque"],html[data-palette="orchidea"],html[data-palette="foresta"]) .epub-preview-head h2{
  font-family:var(--theme-display)!important;
  color:var(--text)!important;
}
:is(html[data-palette="arabesque"],html[data-palette="orchidea"],html[data-palette="foresta"]) :is(
  .epub-editor-panel,.epub-preview-panel,.epub-preview-actions select,
  .epub-editor-panel button,.epub-preview-panel button,.epub-editor-panel input,
  .epub-editor-panel textarea,.epub-editor-panel select
){font-family:var(--theme-ui)!important}
:is(html[data-palette="arabesque"],html[data-palette="orchidea"],html[data-palette="foresta"]) .epub-preview-actions select{
  background:var(--theme-chrome-soft)!important;
  border-color:var(--line)!important;
  color:var(--text)!important;
}
:is(html[data-palette="arabesque"],html[data-palette="orchidea"],html[data-palette="foresta"]) .epub-preview-actions select option{
  background:var(--theme-chrome)!important;
  color:var(--text)!important;
}