:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --app-height: 100svh;
  --bg: var(--tg-theme-bg-color, #f5f5f7);
  --text: var(--tg-theme-text-color, #111111);
  --muted: var(--tg-theme-hint-color, #6e6e73);
  --accent: var(--tg-theme-button-color, #0071e3);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --hairline: color-mix(in srgb, var(--text) 10%, transparent);
  --surface-soft: color-mix(in srgb, var(--text) 4%, transparent);
  --tab-bar-surface: color-mix(in srgb, #ffffff 74%, transparent);
  --tab-bar-stroke: color-mix(in srgb, #ffffff 86%, rgba(255, 255, 255, 0.18));
  --tab-bar-shadow:
    0 18px 48px color-mix(in srgb, var(--text) 10%, transparent),
    0 4px 12px color-mix(in srgb, var(--text) 6%, transparent);
  --tab-pill-fill:
    linear-gradient(
      180deg,
      color-mix(in srgb, #ffffff 78%, transparent),
      color-mix(in srgb, var(--text) 3%, transparent) 44%,
      color-mix(in srgb, var(--text) 7%, transparent)
    );
  --tab-pill-shadow:
    inset 0 1px 0 color-mix(in srgb, #ffffff 92%, transparent),
    inset 0 -1px 0 color-mix(in srgb, var(--text) 7%, transparent),
    0 4px 10px color-mix(in srgb, var(--text) 8%, transparent);
  --tab-bar-blur: blur(26px) saturate(180%);
  --ok: #34c759;
  --warn: #ff9f0a;
  --bad: #ff453a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
}

body {
  min-height: var(--app-height);
  overflow: hidden;
}

button,
input,
textarea {
  font: inherit;
}

app-shell,
pitch-timeline-panel,
page-switcher,
tuner-settings-sheet,
tuner-page,
tab-library-page,
tab-library-list,
tab-library-detail,
more-page {
  display: block;
}

tuner-page,
tab-library-page,
tab-library-list,
tab-library-detail,
more-page,
pitch-timeline-panel {
  min-height: 0;
  height: 100%;
}

.shell {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  height: var(--app-height);
  gap: 8px;
  padding: max(6px, env(safe-area-inset-top))
    max(6px, env(safe-area-inset-right))
      max(8px, env(safe-area-inset-bottom))
    max(6px, env(safe-area-inset-left));
}

.content-stack {
  position: relative;
  min-height: 0;
}

.page {
  position: relative;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

.page[hidden],
.settings-page[hidden] {
  display: none;
}

.timeline {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 4px;
  min-height: 0;
  height: 100%;
}

.timeline-canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  background: transparent;
}

.timeline-footer {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1;
  padding: 0 2px;
}

.button {
  min-height: 42px;
  padding: 9px 14px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.button-secondary {
  border: 1px solid var(--hairline);
  background: transparent;
  color: var(--text);
}

.button:disabled {
  cursor: default;
  opacity: 0.45;
}

.page-switcher {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--tab-bar-stroke);
  border-radius: 32px;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, #ffffff 92%, transparent),
      color-mix(in srgb, var(--tab-bar-surface) 100%, transparent)
    );
  box-shadow: var(--tab-bar-shadow);
  backdrop-filter: var(--tab-bar-blur);
}

.page-switcher::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, #ffffff 84%, transparent),
      color-mix(in srgb, #ffffff 28%, transparent) 24%,
      transparent 56%
    );
  opacity: 0.9;
}

.page-tab {
  position: relative;
  isolation: isolate;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 4px;
  min-height: 60px;
  padding: 7px 8px 9px;
  border: 0;
  border-radius: 24px;
  background: transparent;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    color 140ms ease,
    transform 140ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
  z-index: 1;
}

.page-tab > * {
  position: relative;
  z-index: 1;
}

.page-tab-pill {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: transparent;
  transition:
    background 180ms ease,
    box-shadow 180ms ease,
    opacity 180ms ease;
  opacity: 0;
}

.page-tab-icon-wrap {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
}

.page-tab-icon {
  width: 24px;
  height: 24px;
  overflow: visible;
}

.page-tab-icon-stroke,
.page-tab-icon-shape {
  stroke: currentColor;
  fill: none;
  stroke-width: 1.85;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-tab-icon-active .page-tab-icon-shape {
  fill: currentColor;
  stroke-width: 1.5;
}

.page-tab-label {
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.page-tab-badge {
  position: absolute;
  top: -3px;
  right: -5px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  box-shadow:
    0 0 0 2px color-mix(in srgb, #ffffff 90%, transparent),
    0 4px 10px color-mix(in srgb, var(--accent) 20%, transparent);
}

.page-tab-active {
  color: var(--accent);
}

.page-tab-active .page-tab-pill {
  opacity: 1;
  background:
    radial-gradient(
      circle at 50% 22%,
      color-mix(in srgb, #ffffff 72%, transparent),
      transparent 58%
    ),
    linear-gradient(
      180deg,
      color-mix(in srgb, #ffffff 30%, transparent),
      color-mix(in srgb, var(--text) 2%, transparent) 32%,
      transparent 64%
    ),
    var(--tab-pill-fill);
  box-shadow: var(--tab-pill-shadow);
  backdrop-filter: blur(18px) saturate(160%);
}

.page-tab:active {
  transform: scale(0.985);
}

.settings-page {
  position: absolute;
  inset: 0;
  display: grid;
  align-items: end;
  padding: 0 0 4px;
  background: color-mix(in srgb, var(--bg) 74%, transparent);
  backdrop-filter: blur(8px);
}

.settings-card {
  display: grid;
  gap: 16px;
  padding: 14px;
  border: 1px solid var(--hairline);
  border-radius: 24px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  box-shadow: 0 16px 40px color-mix(in srgb, var(--text) 10%, transparent);
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.settings-title {
  font-size: 1rem;
  font-weight: 700;
}

.settings-close {
  min-height: 36px;
  padding: 8px 12px;
}

.settings-group {
  display: grid;
  gap: 10px;
}

.settings-label {
  color: var(--muted);
  font-size: 0.88rem;
}

.density-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.density-option {
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: transparent;
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  transition:
    transform 140ms ease,
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.density-option-active {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--hairline));
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
}

.density-option:active,
.button:active {
  transform: scale(0.985);
}

.library-view {
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.library-scroll {
  height: 100%;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 0 0 14px;
  -webkit-overflow-scrolling: touch;
}

.library-stack {
  display: grid;
  gap: 10px;
  padding: 0 4px 14px;
}

.library-stack-detail {
  padding-bottom: 18px;
}

.library-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 2px;
}

.library-topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.library-pill-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.library-pill-control-soft {
  border: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
  background: color-mix(in srgb, #ffffff 84%, transparent);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--text) 8%, transparent);
}

.library-pill-control-faint {
  background: color-mix(in srgb, var(--text) 6%, transparent);
  color: color-mix(in srgb, var(--text) 72%, transparent);
}

.library-hero-panel,
.library-detail-panel {
  display: grid;
  gap: 12px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--text) 7%, transparent);
  border-radius: 26px;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, #ffffff 92%, transparent),
      color-mix(in srgb, #f5f6fb 96%, transparent)
    );
  box-shadow:
    0 18px 40px color-mix(in srgb, var(--text) 8%, transparent),
    inset 0 1px 0 color-mix(in srgb, #ffffff 96%, transparent);
}

.library-title-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.library-title {
  margin: 0;
  font-size: 1.34rem;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.library-subtitle,
.library-detail-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.35;
}

.library-summary-count {
  display: inline-grid;
  place-items: center;
  min-width: 52px;
  min-height: 52px;
  padding: 0 10px;
  border-radius: 18px;
  background: linear-gradient(180deg, #1d93ff, #1277ea);
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 700;
  box-shadow: 0 12px 24px color-mix(in srgb, var(--accent) 28%, transparent);
}

.library-folder-strip {
  display: flex;
  gap: 8px;
  overflow: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.library-folder-strip::-webkit-scrollbar,
.library-scroll::-webkit-scrollbar {
  display: none;
}

.library-folder-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid color-mix(in srgb, var(--text) 7%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, #ffffff 82%, transparent);
  color: color-mix(in srgb, var(--text) 74%, transparent);
  white-space: nowrap;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
}

.library-folder-chip-active {
  background: linear-gradient(180deg, #1995ff, #1277ea);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 12px 22px color-mix(in srgb, var(--accent) 25%, transparent);
}

.library-folder-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--folder-accent);
}

.library-folder-chip-active .library-folder-dot {
  background: color-mix(in srgb, #ffffff 92%, transparent);
}

.library-folder-count {
  color: inherit;
  opacity: 0.74;
  font-size: 0.75rem;
}

.library-search-shell {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 12px 0 14px;
  border: 1px solid color-mix(in srgb, var(--text) 7%, transparent);
  border-radius: 18px;
  background: color-mix(in srgb, #ffffff 88%, transparent);
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, #ffffff 96%, transparent),
    0 10px 24px color-mix(in srgb, var(--text) 5%, transparent);
}

.library-search-icon {
  color: var(--muted);
  font-size: 1.05rem;
}

.library-search-input {
  min-width: 0;
  padding: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 0.96rem;
}

.library-search-input::placeholder {
  color: color-mix(in srgb, var(--muted) 85%, transparent);
}

.library-search-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  color: color-mix(in srgb, var(--text) 70%, transparent);
  font-size: 0.8rem;
  font-weight: 600;
}

.library-results {
  display: grid;
  gap: 10px;
}

.library-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  width: 100%;
  padding: 10px;
  border: 1px solid color-mix(in srgb, var(--text) 6%, transparent);
  border-radius: 24px;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, #ffffff 94%, transparent),
      color-mix(in srgb, #f6f7fb 96%, transparent)
    );
  text-align: left;
  box-shadow:
    0 16px 30px color-mix(in srgb, var(--text) 5%, transparent),
    inset 0 1px 0 color-mix(in srgb, #ffffff 96%, transparent);
  cursor: pointer;
}

.library-card:active,
.library-folder-chip:active,
.library-action-button:active {
  transform: scale(0.985);
}

.library-card-body {
  display: grid;
  align-content: start;
  gap: 8px;
  min-width: 0;
}

.library-card-title,
.library-detail-title {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.library-card-title {
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  font-size: 1.06rem;
}

.library-card-subtitle {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.35;
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.library-chip-row,
.library-chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.library-chip-grid {
  gap: 8px;
}

.library-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 10px;
  background: color-mix(in srgb, #f0f4fb 86%, transparent);
  color: color-mix(in srgb, var(--text) 78%, transparent);
  font-size: 0.78rem;
  font-weight: 600;
}

.library-chip-large {
  min-height: 30px;
  padding: 0 12px;
  border-radius: 12px;
  font-size: 0.8rem;
}

.library-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.library-card-meta-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

.library-card-meta-text {
  color: color-mix(in srgb, var(--text) 72%, transparent);
  font-size: 0.82rem;
  font-weight: 600;
}

.library-card-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
}

.library-footer-meta {
  color: color-mix(in srgb, var(--muted) 92%, transparent);
  font-size: 0.82rem;
  font-weight: 600;
}

.library-empty {
  padding: 26px 18px;
  border: 1px dashed color-mix(in srgb, var(--text) 10%, transparent);
  border-radius: 22px;
  background: color-mix(in srgb, #ffffff 70%, transparent);
  color: var(--muted);
  text-align: center;
}

.library-card-loading {
  cursor: default;
}

.library-card-cover-skeleton,
.library-line,
.library-chip-skeleton {
  background:
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--text) 5%, transparent),
      color-mix(in srgb, #ffffff 92%, transparent),
      color-mix(in srgb, var(--text) 5%, transparent)
    );
  background-size: 220% 100%;
  animation: library-shimmer 1.1s linear infinite;
}

.library-card-cover-skeleton {
  border-radius: 18px;
  aspect-ratio: 0.74;
}

.library-card-body-loading {
  gap: 10px;
}

.library-line {
  height: 12px;
  border-radius: 999px;
}

.library-line-title {
  width: 82%;
  height: 18px;
}

.library-line-subtitle {
  width: 96%;
}

.library-line-subtitle-short {
  width: 72%;
}

.library-chip-skeleton {
  width: 54px;
  height: 26px;
  border-radius: 10px;
}

.library-meta-table {
  display: grid;
  gap: 8px;
  margin: 0;
}

.library-meta-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.library-meta-row dt {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 600;
}

.library-meta-row dd {
  min-width: 0;
  margin: 0;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 600;
}

.library-action-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
  gap: 10px;
}

.library-action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 16px;
  border: 1px solid transparent;
  font-size: 0.96rem;
  font-weight: 700;
  cursor: pointer;
}

.library-action-button-secondary {
  border-color: color-mix(in srgb, var(--accent) 32%, transparent);
  background: color-mix(in srgb, #ffffff 96%, transparent);
  color: var(--accent);
}

.library-action-button-primary {
  background: linear-gradient(180deg, #2193ff, #1277ea);
  color: #ffffff;
  box-shadow: 0 16px 28px color-mix(in srgb, var(--accent) 28%, transparent);
}

.library-detail-section {
  display: grid;
  gap: 8px;
}

.library-detail-section-label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.library-command-preview {
  display: block;
  overflow: auto;
  padding: 12px;
  border-radius: 16px;
  background: #f3f5fa;
  color: #1e273a;
  font-size: 0.82rem;
  line-height: 1.45;
}

.library-toast {
  position: sticky;
  bottom: 8px;
  justify-self: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 84%, transparent);
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 700;
  box-shadow: 0 16px 28px color-mix(in srgb, var(--text) 14%, transparent);
}

.library-toast-inline {
  margin: 0 auto;
}

@keyframes library-shimmer {
  from {
    background-position: 200% 0;
  }

  to {
    background-position: -20% 0;
  }
}

@media (max-width: 430px) {
  .shell {
    gap: 6px;
    padding: max(6px, env(safe-area-inset-top))
      max(6px, env(safe-area-inset-right))
      max(8px, env(safe-area-inset-bottom))
      max(6px, env(safe-area-inset-left));
  }

  .timeline-canvas {
    min-height: 0;
  }

  .page-switcher {
    padding: 5px;
    border-radius: 28px;
  }

  .page-tab {
    min-height: 56px;
    padding: 6px 6px 8px;
  }

  .settings-card {
    padding: 12px;
    border-radius: 20px;
  }

  .library-stack {
    gap: 8px;
    padding: 0 2px 12px;
  }

  .library-hero-panel,
  .library-detail-panel {
    padding: 10px;
    border-radius: 22px;
  }

  .library-title {
    font-size: 1.2rem;
  }

  .library-summary-count {
    min-width: 48px;
    min-height: 48px;
    border-radius: 16px;
    font-size: 1.04rem;
  }

  .library-card {
    gap: 10px;
    padding: 9px;
    border-radius: 20px;
  }

  .library-card-title {
    font-size: 0.98rem;
  }

  .library-action-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.32fr);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .shell {
    animation: shell-in 160ms ease-out;
  }

  .page-switcher,
  .page-tab,
  .page-tab-pill {
    transition:
      transform 180ms ease,
      box-shadow 180ms ease,
      border-color 180ms ease,
      background 180ms ease,
      opacity 180ms ease;
  }
}

@supports not ((backdrop-filter: blur(1px))) {
  .page-switcher,
  .page-tab-active .page-tab-pill,
  .settings-page {
    backdrop-filter: none;
  }
}

@keyframes shell-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}