:root {
  color-scheme: light;
  --app-bg: #fff8e6;
  --app-surface: #fffdf6;
  --app-surface-muted: #fff3cf;
  --app-surface-strong: #f8e6ad;
  --app-border: #e4c982;
  --app-border-strong: #caa24c;
  --app-text: #2b2416;
  --app-text-muted: #705f39;
  --app-link: #8b5e00;
  --app-link-hover: #5f4000;
  --app-primary: #9a6500;
  --app-primary-hover: #7a4f00;
  --app-primary-text: #fff7de;
  --app-danger: #9d2f21;
  --app-success: #466b1f;
  --app-warning-bg: #fff0bd;
  --app-warning-text: #5c4300;
  --app-info-bg: #fff1c7;
  --app-info-text: #59420c;
  --app-shadow: rgba(91, 66, 16, 0.13);
  --bs-body-bg: var(--app-bg);
  --bs-body-color: var(--app-text);
  --bs-border-color: var(--app-border);
  --bs-secondary-color: var(--app-text-muted);
  --bs-link-color: var(--app-link);
  --bs-link-hover-color: var(--app-link-hover);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --app-bg: #18140d;
  --app-surface: #211b12;
  --app-surface-muted: #2a2216;
  --app-surface-strong: #3a2d18;
  --app-border: #5d4a26;
  --app-border-strong: #8d6d2c;
  --app-text: #f2e6c8;
  --app-text-muted: #c2ad82;
  --app-link: #e9bd58;
  --app-link-hover: #ffd986;
  --app-primary: #d29a2c;
  --app-primary-hover: #e6b84f;
  --app-primary-text: #1d1509;
  --app-danger: #e78b7b;
  --app-success: #b6d379;
  --app-warning-bg: #3a2d18;
  --app-warning-text: #f1cf82;
  --app-info-bg: #332a1a;
  --app-info-text: #efd39b;
  --app-shadow: rgba(0, 0, 0, 0.35);
  --bs-body-bg: var(--app-bg);
  --bs-body-color: var(--app-text);
  --bs-border-color: var(--app-border);
  --bs-secondary-color: var(--app-text-muted);
  --bs-link-color: var(--app-link);
  --bs-link-hover-color: var(--app-link-hover);
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem var(--app-surface), 0 0 0 0.25rem rgba(154, 101, 0, 0.35);
}

html {
  position: relative;
  min-height: 100%;
}

body {
  background: var(--app-bg);
  color: var(--app-text);
  display: flex;
  flex-direction: column;
  margin: 0;
  min-height: 100vh;
}

body > .container {
  flex: 1 0 auto;
}

a {
  color: var(--app-link);
}

a:hover {
  color: var(--app-link-hover);
}

.app-navbar {
  background: var(--app-surface);
}

.navbar-brand,
.app-navbar .nav-link {
  color: var(--app-text);
}

.navbar-brand:hover,
.app-navbar .nav-link:hover {
  color: var(--app-link-hover);
}

.navbar-toggler {
  border-color: var(--app-border);
}

.navbar-toggler-icon {
  filter: sepia(1) saturate(0.6);
}

:root[data-theme="dark"] .navbar-toggler-icon {
  filter: invert(1) sepia(0.35) saturate(0.8);
}

.border-bottom,
.border-top,
.border {
  border-color: var(--app-border) !important;
}

.box-shadow {
  box-shadow: 0 .25rem .75rem var(--app-shadow);
}

.text-muted {
  color: var(--app-text-muted) !important;
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--app-text);
  --bs-table-border-color: var(--app-border);
  --bs-table-striped-bg: var(--app-surface-muted);
  --bs-table-hover-bg: var(--app-surface-muted);
}

.form-control,
.form-select {
  background-color: var(--app-surface);
  border-color: var(--app-border);
  color: var(--app-text);
}

.form-control:focus,
.form-select:focus {
  background-color: var(--app-surface);
  border-color: var(--app-border-strong);
  color: var(--app-text);
}

.form-control::placeholder {
  color: var(--app-text-muted);
}

.btn-primary {
  background-color: var(--app-primary);
  border-color: var(--app-primary);
  color: var(--app-primary-text);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--app-primary-hover);
  border-color: var(--app-primary-hover);
  color: var(--app-primary-text);
}

.btn-outline-secondary {
  border-color: var(--app-border-strong);
  color: var(--app-text-muted);
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
  background-color: var(--app-surface-strong);
  border-color: var(--app-border-strong);
  color: var(--app-text);
}

.btn-outline-primary {
  border-color: var(--app-primary);
  color: var(--app-primary);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: var(--app-primary);
  border-color: var(--app-primary);
  color: var(--app-primary-text);
}

.btn-outline-danger {
  border-color: var(--app-danger);
  color: var(--app-danger);
}

.alert-light,
.alert-info {
  background: var(--app-info-bg);
  border-color: var(--app-border);
  color: var(--app-info-text);
}

.alert-warning,
.job-error-text {
  background: var(--app-warning-bg);
  border-color: var(--app-border);
  color: var(--app-warning-text);
}

.alert-danger {
  background: color-mix(in srgb, var(--app-danger) 14%, var(--app-surface));
  border-color: var(--app-danger);
  color: var(--app-danger);
}

.alert-success,
.badge.text-bg-success {
  background: color-mix(in srgb, var(--app-success) 18%, var(--app-surface));
  border-color: var(--app-border);
  color: var(--app-success);
}

.badge.text-bg-secondary {
  background: var(--app-surface-strong) !important;
  color: var(--app-text-muted) !important;
}

.badge.text-bg-light {
  background: var(--app-surface-muted) !important;
  border-color: var(--app-border) !important;
  color: var(--app-text-muted) !important;
}

.theme-toggle {
  min-width: 4.5rem;
}

.footer {
  bottom: auto !important;
  flex-shrink: 0;
  line-height: 60px;
  margin-top: auto;
  position: static !important;
}

.learning-note-header {
  align-items: stretch;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: 0.5rem;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1rem;
}

.learning-note-main {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 0.55rem;
  min-width: 0;
}

.learning-note-kicker,
.learning-note-meta {
  align-items: center;
  color: var(--app-text-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.9rem;
  gap: 0.55rem;
}

.learning-note-kicker span,
.learning-note-meta span,
.learning-note-meta a {
  background: var(--app-surface-muted);
  border: 1px solid var(--app-border);
  border-radius: 999px;
  color: var(--app-text-muted);
  line-height: 1.25;
  padding: 0.25rem 0.6rem;
  text-decoration: none;
}

.learning-note-kicker a {
  font-weight: 600;
  text-decoration: none;
}

.learning-note-title {
  color: var(--app-text);
  font-size: 1.6rem;
  line-height: 1.25;
  margin: 0;
}

.learning-note-side {
  align-items: flex-end;
  display: flex;
  flex: 0 0 280px;
  flex-direction: column;
  gap: 0.75rem;
}

.learning-note-thumbnail {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--app-border);
  border-radius: 0.375rem;
  max-width: 280px;
  object-fit: cover;
  width: 100%;
}

.learning-note-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.job-status-panel {
  border-bottom: 1px solid var(--app-border);
  color: var(--app-text-muted);
  padding-bottom: 0.75rem;
}

.job-status-panel summary {
  cursor: pointer;
  font-weight: 600;
}

.job-status-list {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.job-status-item {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.job-history-table {
  border: 1px solid var(--app-border);
  border-radius: 0.375rem;
}

.job-error-text {
  background: var(--app-warning-bg);
  border: 1px solid var(--app-border);
  border-radius: 0.375rem;
  color: var(--app-warning-text);
  font-size: 0.9rem;
  line-height: 1.45;
  padding: 0.75rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.youtube-index-layout {
  align-items: flex-start;
}

.youtube-recent-panel {
  border-left: 1px solid var(--app-border);
  padding-left: 1rem;
}

.youtube-recent-list {
  display: grid;
  gap: 0.75rem;
}

.youtube-recent-item {
  border-bottom: 1px solid var(--app-border);
  display: grid;
  gap: 0.45rem;
  padding-bottom: 0.75rem;
}

.youtube-recent-item:last-child {
  border-bottom: 0;
}

.youtube-recent-meta {
  align-items: center;
  color: var(--app-text-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.8rem;
  gap: 0.5rem;
}

.youtube-recent-channel {
  font-weight: 600;
  text-decoration: none;
}

.youtube-recent-title {
  color: var(--app-text);
  font-weight: 600;
  overflow-wrap: anywhere;
  text-decoration: none;
}

.youtube-recent-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.learning-note-flow {
  display: grid;
  gap: 1.5rem;
  margin: 0 auto;
  max-width: 980px;
}

.learning-note-section {
  margin-bottom: 0;
}

.reader-section-header {
  align-items: flex-start;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.reader-meta {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: flex-end;
}

.reader-header-side {
  align-items: flex-end;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.reader-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.reader-meta span {
  background: var(--app-surface-muted);
  border: 1px solid var(--app-border);
  border-radius: 999px;
  color: var(--app-text-muted);
  font-size: 0.8rem;
  line-height: 1.2;
  padding: 0.25rem 0.55rem;
}

.transcript-reader {
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: 0.375rem;
  max-height: 68vh;
  overflow: auto;
}

.transcript-content {
  color: var(--app-text);
  font-family: var(--bs-body-font-family);
  font-size: 1rem;
  line-height: 1.85;
  margin: 0;
  padding: 1.25rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.summary-content {
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: 0.375rem;
  color: var(--app-text);
  font-size: 1rem;
  line-height: 1.75;
  padding: 1.25rem;
}

.summary-content > :first-child {
  margin-top: 0;
}

.summary-content > :last-child {
  margin-bottom: 0;
}

.summary-content h1,
.summary-content h2,
.summary-content h3 {
  line-height: 1.3;
  margin-bottom: 0.75rem;
  margin-top: 1.25rem;
}

.summary-content h1 {
  font-size: 1.35rem;
}

.summary-content h2 {
  font-size: 1.15rem;
}

.summary-content h3 {
  font-size: 1.05rem;
}

.summary-content ul,
.summary-content ol {
  padding-left: 1.35rem;
}

.summary-content li {
  margin-bottom: 0.35rem;
}

.summary-content p {
  margin-bottom: 0.9rem;
}

.summary-content code {
  background: var(--app-surface-muted);
  border-radius: 0.25rem;
  color: var(--app-text);
  padding: 0.1rem 0.25rem;
}

.pdf-reader-header {
  align-items: flex-start;
  border-bottom: 1px solid var(--app-border);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding-bottom: 0.85rem;
}

.pdf-reader-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.pdf-reader-layout {
  align-items: start;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 390px);
}

.pdf-page-pane,
.pdf-summary-pane {
  min-width: 0;
}

.pdf-page-toolbar {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.pdf-page-image-frame {
  background: var(--app-surface-muted);
  border: 1px solid var(--app-border);
  border-radius: 0.375rem;
  overflow: hidden;
  padding: 0.75rem;
  text-align: center;
}

.pdf-page-image {
  box-shadow: 0 0.25rem 1rem var(--app-shadow);
  height: auto;
  max-height: 74vh;
  max-width: 100%;
  object-fit: contain;
  width: auto;
}

.pdf-summary-pane {
  position: sticky;
  top: 1rem;
}

.pdf-summary-pane .summary-content {
  max-height: 72vh;
  overflow: auto;
}

.article-add-form {
  border-bottom: 1px solid var(--app-border);
  padding-bottom: 1rem;
}

.article-domain-list {
  display: grid;
  gap: 1.25rem;
}

.article-domain-group {
  border-bottom: 1px solid var(--app-border);
  padding-bottom: 1rem;
}

.article-domain-header {
  align-items: baseline;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.article-list-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: flex-end;
}

.article-reader-header {
  align-items: flex-start;
  border-bottom: 1px solid var(--app-border);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding-bottom: 0.85rem;
}

.article-reader-description {
  color: var(--app-text-muted);
  line-height: 1.55;
  margin-top: 0.65rem;
  max-width: 880px;
}

.article-reader-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.article-reader-layout {
  align-items: start;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
}

.article-content-pane,
.article-side-pane {
  min-width: 0;
}

.article-part-toolbar {
  align-items: flex-start;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.article-content-reader {
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: 0.375rem;
  max-height: 76vh;
  overflow: auto;
}

.article-content-text {
  color: var(--app-text);
  font-family: var(--bs-body-font-family);
  font-size: 1rem;
  line-height: 1.85;
  margin: 0;
  padding: 1.25rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.epub-content-reader {
  max-height: 76vh;
}

.epub-content-html {
  color: var(--app-text);
  font-size: 1rem;
  line-height: 1.85;
  padding: 1.25rem;
  word-break: break-word;
}

.epub-content-html > :first-child {
  margin-top: 0;
}

.epub-content-html > :last-child {
  margin-bottom: 0;
}

.epub-content-html h1,
.epub-content-html h2,
.epub-content-html h3,
.epub-content-html h4 {
  line-height: 1.35;
  margin-bottom: 0.75rem;
  margin-top: 1.35rem;
}

.epub-content-html h1 {
  font-size: 1.45rem;
}

.epub-content-html h2 {
  font-size: 1.25rem;
}

.epub-content-html h3,
.epub-content-html h4 {
  font-size: 1.1rem;
}

.epub-content-html p {
  margin-bottom: 0.9rem;
}

.epub-content-html ul,
.epub-content-html ol {
  padding-left: 1.4rem;
}

.epub-content-html li {
  margin-bottom: 0.35rem;
}

.epub-content-html img {
  display: block;
  height: auto;
  margin: 1rem auto;
  max-width: 100%;
}

.article-side-pane {
  display: grid;
  gap: 1rem;
  position: sticky;
  top: 1rem;
}

.article-side-section {
  border-bottom: 1px solid var(--app-border);
  padding-bottom: 1rem;
}

.article-side-section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.article-part-list {
  display: grid;
  gap: 0.45rem;
}

.article-part-link {
  border: 1px solid var(--app-border);
  border-radius: 0.375rem;
  color: var(--app-text);
  display: grid;
  gap: 0.2rem;
  grid-template-columns: auto minmax(0, 1fr);
  padding: 0.65rem;
  text-decoration: none;
}

.article-part-link:hover,
.article-part-link.active {
  background: var(--app-surface-muted);
  border-color: var(--app-border-strong);
  color: var(--app-text);
}

.article-part-order {
  align-items: center;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: 999px;
  color: var(--app-text-muted);
  display: inline-flex;
  font-size: 0.8rem;
  grid-row: 1 / span 2;
  height: 1.65rem;
  justify-content: center;
  width: 1.65rem;
}

.article-part-title {
  font-weight: 600;
  overflow-wrap: anywhere;
}

.article-part-meta {
  color: var(--app-text-muted);
  font-size: 0.8rem;
}

.article-summary-content {
  max-height: 44vh;
  overflow: auto;
}

@media (max-width: 767.98px) {
  .learning-note-header {
    display: block;
    padding: 0.875rem;
  }

  .learning-note-title {
    font-size: 1.35rem;
  }

  .learning-note-side {
    align-items: stretch;
    margin-top: 0.9rem;
  }

  .learning-note-thumbnail {
    max-width: none;
  }

  .learning-note-actions {
    justify-content: flex-start;
  }

  .reader-section-header {
    display: block;
  }

  .reader-meta {
    justify-content: flex-start;
    margin-top: 0.5rem;
  }

  .reader-header-side {
    align-items: flex-start;
  }

  .reader-actions {
    justify-content: flex-start;
    margin-top: 0.5rem;
  }

  .transcript-reader {
    max-height: 62vh;
  }

  .transcript-content {
    font-size: 0.95rem;
    padding: 1rem;
  }

  .youtube-recent-panel {
    border-left: 0;
    border-top: 1px solid var(--app-border);
    padding-left: 0;
    padding-top: 1rem;
  }

  .pdf-reader-header {
    display: block;
  }

  .pdf-reader-actions {
    justify-content: flex-start;
    margin-top: 0.75rem;
  }

  .pdf-reader-layout {
    grid-template-columns: 1fr;
  }

  .pdf-page-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .pdf-summary-pane .summary-content {
    max-height: none;
  }

  .pdf-page-image {
    max-height: 70vh;
  }

  .pdf-summary-pane {
    position: static;
  }

  .article-reader-header {
    display: block;
  }

  .article-reader-actions {
    justify-content: flex-start;
    margin-top: 0.75rem;
  }

  .article-reader-layout {
    grid-template-columns: 1fr;
  }

  .article-content-reader {
    max-height: none;
  }

  .article-side-pane {
    position: static;
  }

  .article-summary-content {
    max-height: none;
  }
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}