.nv-page {
  background: #ece8e3;
  color: var(--ink, #2a2a2a);
  height: 100dvh;
  max-height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

html:has(body.nv-page) {
  height: 100%;
  overflow: hidden;
}

.nv-page #site-header {
  flex-shrink: 0;
}

.nv-page #site-footer {
  flex-shrink: 0;
  padding: 0.28rem 0.8rem;
  font-size: 0.75rem;
  line-height: 1.35;
}

.nv-page #site-footer p {
  margin: 0;
}

.nv-app {
  display: grid;
  grid-template-columns: 272px minmax(0, 1fr);
  gap: 0.55rem;
  max-width: 1680px;
  width: 100%;
  margin: 0 auto;
  padding: 0.5rem 1rem 0.35rem;
  flex: 1;
  min-height: 0;
}

.nv-sidebar {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(40, 24, 16, 0.06);
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

.nv-sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.9rem 1rem 0.55rem;
}

.nv-sidebar-head h1 {
  font-size: 1.05rem;
  margin: 0;
  font-weight: 700;
}

.nv-filters {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0 1rem 0.7rem;
}

.nv-search,
.nv-select {
  width: 100%;
  border: 1px solid #e6dfd8;
  border-radius: 8px;
  padding: 0.5rem 0.7rem;
  font: inherit;
  background: #faf8f6;
}

.nv-search:focus,
.nv-select:focus {
  outline: 2px solid rgba(255, 87, 51, 0.28);
  border-color: var(--accent, #ff5733);
}

.nv-piece-list {
  overflow-x: hidden;
  overflow-y: auto;
  padding: 0 0.55rem 0 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
  min-height: 0;
  min-width: 0;
  scrollbar-width: thin;
  scrollbar-color: #c8bfb6 transparent;
}

.nv-piece {
  appearance: none;
  border: 1px solid transparent;
  background: #f7f4f1;
  border-radius: 8px;
  padding: 0.65rem 0.7rem;
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: inherit;
  min-width: 0;
  max-width: 100%;
  flex: 0 0 auto;
  overflow: visible;
}

.nv-piece:hover {
  border-color: var(--accent, #ff5733);
  background: #fff;
}

.nv-piece.is-active {
  border-color: var(--accent, #ff5733);
  background: #fff5f2;
  box-shadow: 0 0 0 1px var(--accent, #ff5733);
}

.nv-piece-title {
  display: block;
  font-weight: 650;
  font-size: 0.92rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nv-piece-meta {
  display: block;
  color: #6b625b;
  font-size: 0.78rem;
  margin-top: 0.15rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nv-piece-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-top: 0.35rem;
}

.nv-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 650;
  padding: 0.12rem 0.4rem;
  border-radius: 999px;
}

.nv-badge.beginner { background: #d4edda; color: #155724; }
.nv-badge.intermediate { background: #fff3cd; color: #856404; }
.nv-badge.advanced { background: #f8d7da; color: #721c24; }
.nv-badge.imported { background: #e8e4ff; color: #3d348b; }
.nv-badge.klassik { background: #d6e4ff; color: #1e3a8a; }

.nv-sidebar-foot {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.4rem 0.7rem 0.7rem;
  flex-shrink: 0;
}

.nv-manage {
  display: inline-block;
  margin: 0;
  padding: 0 0.15rem;
  color: var(--accent, #ff5733);
  font-weight: 650;
  font-size: 0.82rem;
}

.nv-empty {
  margin: 0;
  padding: 1rem;
  color: #6b625b;
  font-size: 0.9rem;
}

.nv-import {
  border: 1.5px dashed #d9d0c8;
  border-radius: 8px;
  padding: 0.65rem 0.7rem;
  background: #f7f4f1;
  font-size: 0.82rem;
  color: #6b625b;
}

.nv-import-btn {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  cursor: pointer;
  color: inherit;
  margin: 0;
}

.nv-import-btn i {
  color: var(--accent, #ff5733);
  font-size: 1.15rem;
  flex-shrink: 0;
}

.nv-import-copy {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.nv-import-title {
  color: var(--accent, #ff5733);
  font-weight: 650;
}

.nv-import-hint {
  font-size: 0.75rem;
  color: #8a8178;
}

.nv-import.is-drag {
  background: #fff5f2;
  border-color: var(--accent, #ff5733);
}

.nv-import-status { display: block; margin-top: 0.35rem; min-height: 1.1em; }
.nv-import-status:empty { display: none; }

.nv-main {
  min-width: 0;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nv-toolbar {
  position: relative;
  z-index: 8;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(40, 24, 16, 0.06);
  padding: 0.55rem 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.nv-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.5rem;
}

.nv-toolbar-tools > * + * {
  border-left: 1px solid #efe8e2;
  padding-left: 0.5rem;
}

.nv-btn {
  appearance: none;
  border: 0;
  background: #f3eeea;
  color: #2a2a2a;
  border-radius: 8px;
  padding: 0.42rem 0.7rem;
  font: inherit;
  font-size: 0.86rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
}

.nv-btn i { line-height: 1; font-size: 1rem; }

.nv-icon-tool {
  min-width: 2.2rem;
  padding: 0.42rem 0.48rem;
}

.nv-btn:hover { background: #ece4de; }
.nv-btn:disabled { opacity: 0.5; cursor: default; }
.nv-btn:focus-visible,
.nv-toggle:focus-visible,
.nv-search:focus-visible {
  outline: 2px solid var(--accent, #ff5733);
  outline-offset: 2px;
}

.nv-btn-primary {
  background: var(--accent, #ff5733);
  color: #fff;
  min-width: 5.6rem;
  justify-content: center;
}

.nv-btn-primary:hover { background: var(--accent-hover, #e64d2a); }

.nv-btn.is-on {
  background: #fff5f2;
  color: var(--accent, #ff5733);
  box-shadow: inset 0 0 0 1px var(--accent, #ff5733);
}

.nv-now {
  font-size: 0.82rem;
  color: #6b625b;
  min-width: 0;
  flex: 1 1 10rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nv-now strong { color: #2a2a2a; }

.nv-progress {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex: 1 1 220px;
  min-width: 180px;
}

.nv-time { font-size: 0.78rem; color: #6b625b; min-width: 2.2rem; }

.nv-bar {
  flex: 1;
  height: 8px;
  background: #efe8e2;
  border-radius: 99px;
  overflow: hidden;
  cursor: pointer;
}

.nv-bar-fill {
  height: 100%;
  width: 0;
  background: var(--accent, #ff5733);
  border-radius: inherit;
}

.nv-speed {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: #6b625b;
}

.nv-speed input { width: 92px; }

.nv-group {
  display: flex;
  align-items: center;
  gap: 0.28rem;
}

.nv-group .nv-btn {
  white-space: nowrap;
}

.nv-icon-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: #555;
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.1rem;
}

.nv-icon-btn:hover { background: #f3eeea; }

.nv-feedback {
  min-height: 0;
  font-size: 0.82rem;
  color: #6b625b;
}

.nv-feedback:empty { display: none; }

.nv-feedback.is-err { color: #b42318; }
.nv-feedback.is-ok { color: #17663a; }

.nv-score-wrap {
  background: transparent;
  min-width: 0;
  min-height: 0;
  flex: 1;
  display: flex;
}

.nv-paper {
  background: #c9c0b5;
  border-radius: 10px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28);
  flex: 1;
  min-height: 0;
  max-height: none;
  height: 100%;
  overflow: auto;
  cursor: pointer;
  position: relative;
  padding: 1.15rem 1rem 1.6rem;
  scrollbar-width: thin;
  scrollbar-color: #c8bfb6 transparent;
}

.nv-paper.view-page {
  background: #c9c0b5;
  padding: 1.1rem 0.85rem 1.6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.nv-paper.view-line {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 1rem 0.8rem;
}

.nv-paper [id^="osmdCanvasPage"] {
  position: relative;
  width: max-content;
  max-width: 100%;
  margin: 0 auto 1.2rem;
  background-color: #f5f2eb;
  background-image:
    linear-gradient(118deg, transparent 28%, rgba(255, 255, 255, 0.32) 29.4%, transparent 31%),
    linear-gradient(118deg, transparent 30%, rgba(55, 48, 40, 0.055) 31.2%, transparent 33%),
    linear-gradient(24deg, transparent 57%, rgba(255, 255, 255, 0.2) 58.2%, transparent 60%),
    linear-gradient(24deg, transparent 58.4%, rgba(50, 44, 36, 0.045) 59.4%, transparent 61.5%),
    linear-gradient(-42deg, transparent 41%, rgba(255, 255, 255, 0.14) 42.4%, transparent 44%),
    linear-gradient(-42deg, transparent 72%, rgba(48, 42, 34, 0.04) 73.2%, transparent 75%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0.42 0 0 0 0 0.4 0 0 0 0 0.36 0 0 0 0.28 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"),
    linear-gradient(180deg, #f8f5f0 0%, #f0ebe3 100%);
  background-size: auto, auto, auto, auto, auto, auto, 160px 160px, auto;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.35),
    inset 0 0 42px rgba(80, 68, 52, 0.06),
    0 10px 28px rgba(40, 24, 16, 0.16),
    0 0 0 1px rgba(40, 24, 16, 0.08);
}

.nv-paper [id^="osmdCanvasPage"]:last-of-type {
  margin-bottom: 0;
}

.nv-paper svg {
  display: block;
  margin: 0;
  background: transparent;
  box-shadow: none;
}

.nv-paper svg:last-child {
  margin-bottom: 0;
}

.nv-paper.view-page svg {
  background: transparent;
}

.nv-piece-list::-webkit-scrollbar,
.nv-paper::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.nv-piece-list::-webkit-scrollbar-track,
.nv-paper::-webkit-scrollbar-track {
  background: transparent;
}

.nv-piece-list::-webkit-scrollbar-thumb,
.nv-paper::-webkit-scrollbar-thumb {
  background: #c8bfb6;
  border-radius: 99px;
}

.nv-piece-list::-webkit-scrollbar-thumb:hover,
.nv-paper::-webkit-scrollbar-thumb:hover {
  background: #b3aaa1;
}

.nv-paper .cursor-on,
.nv-paper .cursor-on rect,
.nv-paper rect.cursor-on,
.nv-paper .osmd-cursor,
.nv-paper [class*="cursorHighlight"],
.nv-paper img[id^="cursorImg"] {
  fill: rgba(255, 87, 51, 0.16) !important;
  stroke: #ff5733 !important;
  stroke-width: 1.2px !important;
}

.nv-paper img[id^="cursorImg"] {
  z-index: 6 !important;
  pointer-events: none !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.nv-meta {
  background: #fff;
  border-radius: 10px;
  padding: 0 0.9rem;
  box-shadow: 0 8px 28px rgba(40, 24, 16, 0.06);
  flex-shrink: 0;
  max-height: min(30vh, 14rem);
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: #c8bfb6 transparent;
}

.nv-meta:not([open]) {
  max-height: none;
  overflow: hidden;
}

.nv-meta[hidden] { display: none !important; }

.nv-meta summary {
  cursor: pointer;
  font-weight: 650;
  padding: 0.42rem 0;
  list-style: none;
}

.nv-meta summary::-webkit-details-marker { display: none; }
.nv-meta-line { font-size: 0.82rem; color: #6b625b; margin-bottom: 0.3rem; }
.nv-meta-line span { margin-right: 0.9rem; }
.nv-tips { margin: 0 0 0.55rem; padding-left: 1.1rem; }

.nv-page.is-dark {
  background: #161412;
  color: #ece7e2;
}

.nv-page.is-dark .nv-sidebar,
.nv-page.is-dark .nv-toolbar,
.nv-page.is-dark .nv-meta {
  background: #221f1c;
  box-shadow: none;
}

.nv-page.is-dark .nv-toolbar { background: rgba(34, 31, 28, 0.94); }
.nv-page.is-dark .nv-piece { background: #2a2623; color: #ece7e2; }
.nv-page.is-dark .nv-piece.is-active { background: #3a2a28; }
.nv-page.is-dark .nv-search,
.nv-page.is-dark .nv-select { background: #2a2623; color: #ece7e2; border-color: #3a342f; }
.nv-page.is-dark .nv-btn { background: #2f2a27; color: #ece7e2; }
.nv-page.is-dark .nv-paper,
.nv-page.is-dark .nv-paper.view-page {
  background: #161412;
}
.nv-page.is-dark .nv-paper svg,
.nv-page.is-dark .nv-paper.view-page svg {
  background-color: transparent;
}
.nv-page.is-dark .nv-paper [id^="osmdCanvasPage"] {
  background-color: #f5f2eb;
}
.nv-page.is-dark .nv-now,
.nv-page.is-dark .nv-piece-meta,
.nv-page.is-dark .nv-time,
.nv-page.is-dark .nv-speed { color: #b7aea6; }
.nv-page.is-dark .nv-now strong { color: #f3eee9; }
.nv-page.is-dark .nv-bar { background: #3a342f; }
.nv-page.is-dark .nv-piece-list,
.nv-page.is-dark .nv-paper {
  scrollbar-color: #5a524c transparent;
}
.nv-page.is-dark .nv-piece-list::-webkit-scrollbar-thumb,
.nv-page.is-dark .nv-paper::-webkit-scrollbar-thumb {
  background: #5a524c;
}
.nv-page.is-dark .nv-import {
  background: #2a2623;
  border-color: #5a524c;
}
.nv-page.is-dark .nv-import.is-drag {
  background: #3a2a28;
  border-color: var(--accent, #ff5733);
}
.nv-page.is-dark .nv-import-hint { color: #9a9188; }
.nv-page.is-dark .nv-toolbar-tools > * + * { border-color: #3a342f; }

.nv-library-toggle { display: none; }

@media (max-width: 900px) {
  .nv-app { grid-template-columns: 1fr; padding: 0.4rem 0.6rem 0.3rem; }
  .nv-library-toggle { display: inline-flex; }
  .nv-toolbar-tools > * + * {
    border-left: 0;
    padding-left: 0;
  }
  .nv-sidebar {
    position: fixed;
    z-index: 40;
    inset: var(--nav-h, 4.6rem) auto 0 0;
    width: min(92vw, 320px);
    max-height: none;
    height: calc(100dvh - var(--nav-h, 4.6rem));
    border-radius: 0 12px 12px 0;
    transform: translateX(-105%);
    transition: transform 0.2s ease;
  }
  .nv-page.library-open .nv-sidebar { transform: none; }
  .nv-page.library-open::after {
    content: "";
    position: fixed;
    inset: var(--nav-h, 4.6rem) 0 0 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 30;
  }
  .nv-paper,
  .nv-paper.view-page {
    padding: 0.85rem 0.65rem 1.3rem;
  }
}

#nvPrintRoot {
  display: none !important;
}

@media print {
  @page {
    size: A4 portrait;
    margin: 0;
  }
  html, body.nv-page {
    margin: 0 !important;
    padding: 0 !important;
    width: 210mm;
    background: #f4f1ea;
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }
  body.nv-page > *:not(#nvPrintRoot) {
    display: none !important;
  }
  #nvPrintRoot,
  #nvPrintRoot[hidden] {
    display: block !important;
    position: static !important;
    width: 210mm;
    margin: 0;
    padding: 0;
    overflow: visible;
  }
  #nvPrintRoot .nv-print-sheet {
    display: block;
    position: relative;
    box-sizing: border-box;
    width: 210mm;
    height: 297mm;
    margin: 0;
    padding: 0;
    overflow: hidden;
    page-break-after: always;
    break-after: page;
    break-inside: avoid;
    page-break-inside: avoid;
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
    background-color: #f3f0e9;
    background-image:
      linear-gradient(118deg, transparent 28%, rgba(255, 255, 255, 0.28) 29.4%, transparent 31%),
      linear-gradient(118deg, transparent 30%, rgba(55, 48, 40, 0.05) 31.2%, transparent 33%),
      linear-gradient(24deg, transparent 57%, rgba(255, 255, 255, 0.16) 58.2%, transparent 60%),
      linear-gradient(24deg, transparent 58.4%, rgba(50, 44, 36, 0.04) 59.4%, transparent 61.5%),
      linear-gradient(-42deg, transparent 41%, rgba(255, 255, 255, 0.12) 42.4%, transparent 44%),
      linear-gradient(-42deg, transparent 72%, rgba(48, 42, 34, 0.035) 73.2%, transparent 75%),
      url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='210' height='297'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0.42 0 0 0 0 0.4 0 0 0 0 0.36 0 0 0 0.16 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"),
      linear-gradient(180deg, #f7f4ee 0%, #f1ece4 100%);
    background-repeat: no-repeat;
    background-size: 100% 100%;
  }
  #nvPrintRoot .nv-print-sheet:last-child {
    page-break-after: auto;
    break-after: auto;
  }
  #nvPrintRoot svg {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    display: block !important;
    width: 210mm !important;
    height: 297mm !important;
    max-width: none !important;
    max-height: none !important;
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
    transform: none !important;
  }
  #nvPrintRoot [class*="cursor"] {
    display: none !important;
  }
}