.paper-lens-page {
  --lens-bg: #f6f7e7;
  --lens-panel: #fffef7;
  --lens-panel-soft: #eef3d4;
  --lens-ink: #213020;
  --lens-muted: #596653;
  --lens-green: #2f7138;
  --lens-green-dark: #1f5528;
  --lens-green-soft: #dcecbc;
  --lens-coral: #d95d4c;
  --lens-gold: #c38b1d;
  --lens-blue: #367da8;
  --lens-line: rgba(46, 76, 41, 0.22);
  background: var(--lens-bg);
}

.paper-lens-page [hidden] {
  display: none !important;
}

.paper-lens-page .icon {
  width: 1.1rem;
  height: 1.1rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.lens-site-header .site-nav a[aria-current='page'] {
  color: white;
  background: var(--lens-green);
}

.lens-main {
  width: 100%;
  max-width: none;
  margin: 0;
}

.lens-shell {
  width: min(1320px, calc(100% - 2rem));
  margin-inline: auto;
}

.lens-intro {
  padding: 2.6rem 0 2.25rem;
  border-bottom: 7px solid var(--soil);
  background: #e7f2be;
}

.back-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1.1rem;
  color: var(--lens-green-dark);
  font-weight: 900;
}

.back-link:hover {
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

.lens-intro h1 {
  max-width: none;
  margin-bottom: 0.65rem;
  color: var(--lens-ink);
  font-size: 3.7rem;
  line-height: 1.05;
  letter-spacing: 0;
}

.lens-lede {
  max-width: 760px;
  margin-bottom: 1.4rem;
  color: #41513d;
  font-size: 1.08rem;
}

.lens-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
}

.lens-summary div {
  min-width: 130px;
  padding: 0.35rem 1.35rem 0.35rem 0;
  margin-right: 1.35rem;
  border-right: 1px solid rgba(42, 74, 38, 0.26);
}

.lens-summary div:last-child {
  border-right: 0;
}

.lens-summary dt {
  color: var(--lens-green-dark);
  font-size: 1.55rem;
  font-weight: 900;
  line-height: 1.15;
}

.lens-summary dd {
  margin: 0.15rem 0 0;
  color: var(--lens-muted);
  font-size: 0.88rem;
  font-weight: 800;
}

.lens-paper {
  border-bottom: 1px solid var(--lens-line);
  background: var(--lens-panel);
}

.lens-paper-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  gap: 2rem;
  align-items: center;
  padding-block: 1.25rem;
}

.paper-label {
  margin-bottom: 0.25rem;
  color: var(--lens-coral);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.lens-paper h2 {
  margin-bottom: 0.25rem;
  color: var(--lens-ink);
  font-size: 1.2rem;
  line-height: 1.4;
}

.paper-citation,
.paper-notice {
  margin: 0;
  color: var(--lens-muted);
  font-size: 0.86rem;
}

.paper-notice {
  padding-left: 1rem;
  border-left: 4px solid var(--lens-gold);
}

.lens-workspace {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding-block: 1.25rem 3.5rem;
}

.lens-controls,
.lens-viewer {
  min-width: 0;
  border: 1px solid var(--lens-line);
  border-radius: 8px;
  background: var(--lens-panel);
  box-shadow: 0 8px 0 rgba(93, 119, 57, 0.1), 0 18px 34px rgba(55, 76, 42, 0.08);
}

.lens-controls {
  position: sticky;
  top: 5rem;
  overflow: hidden;
}

.control-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.1rem 0.9rem;
  border-bottom: 1px solid var(--lens-line);
}

.control-heading .eyebrow {
  margin-bottom: 0.25rem;
}

.control-heading h2 {
  margin: 0;
  color: var(--lens-ink);
  font-size: 1.35rem;
}

.mode-count {
  flex: 0 0 auto;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  color: var(--lens-green-dark);
  background: var(--lens-green-soft);
  font-size: 0.76rem;
  font-weight: 900;
}

.search-field,
.category-field {
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--lens-line);
}

.search-field label,
.control-label,
.category-select-label {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--lens-ink);
  font-size: 0.78rem;
  font-weight: 900;
}

.search-input-wrap {
  position: relative;
}

.search-input-wrap .icon {
  position: absolute;
  top: 50%;
  left: 0.75rem;
  color: var(--lens-muted);
  transform: translateY(-50%);
  pointer-events: none;
}

.search-input-wrap input,
.category-select {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--lens-line);
  border-radius: 8px;
  color: var(--lens-ink);
  background: white;
  font: inherit;
}

.search-input-wrap input {
  padding: 0.55rem 0.7rem 0.55rem 2.35rem;
}

.category-select {
  display: none;
  padding: 0.5rem 0.7rem;
}

.category-select-label {
  display: none;
}

.search-input-wrap input::placeholder {
  color: #788373;
}

.search-input-wrap input:focus-visible,
.category-select:focus-visible {
  border-color: var(--lens-green);
  outline: 3px solid rgba(47, 113, 56, 0.22);
  outline-offset: 1px;
}

.category-buttons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem;
}

.category-button {
  min-width: 0;
  min-height: 2.55rem;
  border: 1px solid var(--lens-line);
  border-radius: 8px;
  padding: 0.45rem 0.55rem;
  color: var(--lens-muted);
  background: white;
  cursor: pointer;
  font: inherit;
  font-size: 0.76rem;
  font-weight: 900;
  line-height: 1.35;
}

.category-button:hover {
  border-color: var(--lens-green);
  color: var(--lens-green-dark);
  background: var(--lens-green-soft);
}

.category-button[aria-pressed='true'] {
  border-color: var(--lens-green);
  color: white;
  background: var(--lens-green);
}

.category-description {
  margin: 0.55rem 0 0;
  color: var(--lens-muted);
  font-size: 0.75rem;
  line-height: 1.55;
}

.mode-list {
  max-height: calc(100vh - 26rem);
  min-height: 180px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: rgba(47, 113, 56, 0.38) transparent;
}

.mode-group + .mode-group {
  border-top: 1px solid var(--lens-line);
}

.mode-group-header {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  padding: 0.55rem 1.1rem;
  color: var(--lens-muted);
  background: #f2f4df;
  font-size: 0.72rem;
  font-weight: 900;
}

.mode-group-header h3 {
  margin: 0;
  color: inherit;
  font-size: inherit;
}

.mode-option {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 4.1rem;
  gap: 0.15rem;
  align-content: center;
  border: 0;
  border-bottom: 1px solid rgba(46, 76, 41, 0.12);
  padding: 0.7rem 1rem 0.7rem 1.15rem;
  color: var(--lens-ink);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.mode-option:last-child {
  border-bottom: 0;
}

.mode-option::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: transparent;
  content: '';
}

.mode-option:hover {
  background: var(--lens-panel-soft);
}

.mode-option[aria-pressed='true'] {
  background: #e5efc9;
}

.mode-option[aria-pressed='true']::before {
  background: var(--lens-green);
}

.mode-name {
  overflow-wrap: anywhere;
  font-size: 0.92rem;
  font-weight: 900;
  line-height: 1.35;
}

.mode-meta {
  color: var(--lens-muted);
  font-size: 0.72rem;
  font-weight: 700;
}

.mode-list-empty {
  padding: 1.4rem 1.1rem;
  color: var(--lens-muted);
  font-size: 0.86rem;
}

.mode-list-empty button {
  display: inline-flex;
  min-height: 2.5rem;
  margin-top: 0.75rem;
  align-items: center;
  border: 1px solid var(--lens-line);
  border-radius: 8px;
  padding: 0.45rem 0.7rem;
  color: var(--lens-green-dark);
  background: white;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
}

.lens-viewer {
  overflow: hidden;
}

.viewer-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
  padding: 1.35rem 1.5rem;
  border-bottom: 1px solid var(--lens-line);
  background: #fbfced;
}

.viewer-position {
  margin: 0 0 0.25rem;
  color: var(--lens-coral);
  font-size: 0.75rem;
  font-weight: 900;
}

.viewer-header h2 {
  margin: 0;
  color: var(--lens-ink);
  font-size: 1.8rem;
}

.viewer-tagline {
  max-width: 760px;
  margin: 0.45rem 0 0;
  color: var(--lens-muted);
  font-size: 0.92rem;
}

.viewer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.viewer-badge {
  display: inline-flex;
  width: fit-content;
  min-height: 1.75rem;
  align-items: center;
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  color: var(--lens-muted);
  background: #e9eddf;
  font-size: 0.72rem;
  font-weight: 900;
}

.viewer-badge[data-kind='core'] {
  color: var(--lens-green-dark);
  background: var(--lens-green-soft);
}

.viewer-badge[data-kind='advanced'] {
  color: #255e84;
  background: #dcecf6;
}

.viewer-badge[data-kind='variant'] {
  color: #8b5c08;
  background: #f7e9bd;
}

.viewer-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem;
  max-width: 360px;
}

.tool-button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: 0.42rem;
  border: 1px solid var(--lens-line);
  border-radius: 8px;
  padding: 0.5rem 0.7rem;
  color: var(--lens-green-dark);
  background: white;
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 900;
}

.tool-button:hover:not(:disabled) {
  border-color: var(--lens-green);
  background: var(--lens-green-soft);
}

.tool-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.tool-button:focus-visible,
.category-button:focus-visible,
.mode-option:focus-visible,
.mode-list-empty button:focus-visible {
  outline: 3px solid rgba(47, 113, 56, 0.38);
  outline-offset: -3px;
}

.prompt-panel {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--lens-line);
  background: #f8f4e9;
}

.prompt-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

.prompt-heading h3 {
  margin-bottom: 0.25rem;
  color: var(--lens-ink);
  font-size: 1.05rem;
}

.prompt-heading p {
  margin: 0;
  color: var(--lens-muted);
  font-size: 0.78rem;
}

.prompt-panel pre {
  max-height: 440px;
  margin: 0;
  overflow: auto;
  border: 1px solid var(--lens-line);
  border-radius: 8px;
  padding: 1rem;
  color: #2f382c;
  background: #fffef9;
  font-family: Consolas, 'Courier New', monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

.mode-note {
  margin: 1rem 1.5rem 0;
  border-left: 4px solid var(--lens-gold);
  padding: 0.75rem 0.9rem;
  color: #705110;
  background: #fff5d9;
  font-size: 0.86rem;
}

.markdown-body {
  max-width: 78ch;
  min-height: 520px;
  margin-inline: auto;
  padding: 1.6rem 1.75rem 3rem;
  color: #283126;
  font-size: 0.96rem;
  line-height: 1.82;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  margin: 1.7rem 0 0.65rem;
  color: var(--lens-ink);
  line-height: 1.4;
  letter-spacing: 0;
}

.markdown-body h1 {
  padding-bottom: 0.45rem;
  border-bottom: 2px solid var(--lens-green-soft);
  font-size: 1.55rem;
}

.markdown-body h2 {
  font-size: 1.3rem;
}

.markdown-body h3 {
  font-size: 1.12rem;
}

.markdown-body h4 {
  font-size: 1rem;
}

.markdown-body p {
  margin: 0.65rem 0;
}

.markdown-body ul,
.markdown-body ol {
  margin: 0.7rem 0;
  padding-left: 1.4rem;
}

.markdown-body li + li {
  margin-top: 0.3rem;
}

.markdown-body strong {
  color: var(--lens-green-dark);
}

.markdown-body blockquote {
  margin: 1rem 0;
  border-left: 4px solid var(--lens-blue);
  padding: 0.5rem 1rem;
  color: var(--lens-muted);
  background: #edf4f7;
}

.markdown-body code {
  overflow-wrap: anywhere;
  color: #315633;
  background: #e9efcf;
}

.markdown-body pre {
  max-width: 100%;
  margin: 1rem 0;
  overflow-x: auto;
  border-radius: 8px;
  padding: 1rem;
  color: #f7f8ef;
  background: #283126;
}

.markdown-body pre code {
  padding: 0;
  color: inherit;
  background: transparent;
}

.markdown-table-wrap {
  max-width: 100%;
  margin: 1rem 0;
  overflow-x: auto;
  border: 1px solid var(--lens-line);
  border-radius: 8px;
}

.markdown-body table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.markdown-body th,
.markdown-body td {
  padding: 0.55rem 0.7rem;
  border-right: 1px solid var(--lens-line);
  border-bottom: 1px solid var(--lens-line);
  text-align: left;
  vertical-align: top;
}

.markdown-body th {
  color: var(--lens-ink);
  background: #edf1d8;
}

.markdown-body tr:last-child td {
  border-bottom: 0;
}

.markdown-body th:last-child,
.markdown-body td:last-child {
  border-right: 0;
}

.markdown-body hr {
  margin: 1.5rem 0;
  border: 0;
  border-top: 1px solid var(--lens-line);
}

.viewer-empty,
.load-error {
  padding: 1rem;
  border: 1px dashed var(--lens-line);
  border-radius: 8px;
  color: var(--lens-muted);
  background: #f7f8ea;
}

.no-script {
  margin-bottom: 3rem;
  border-left: 4px solid var(--lens-coral);
  padding: 1rem;
  background: var(--lens-panel);
}

.lens-footer {
  width: min(1320px, calc(100% - 2rem));
}

.lens-toast {
  position: fixed;
  z-index: 30;
  right: 1rem;
  bottom: 1rem;
  max-width: min(360px, calc(100% - 2rem));
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: white;
  background: var(--lens-ink);
  box-shadow: 0 10px 28px rgba(28, 43, 27, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.75rem);
  transition: opacity 180ms ease, transform 180ms ease;
}

.lens-toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .lens-workspace {
    grid-template-columns: 300px minmax(0, 1fr);
  }

  .viewer-header {
    grid-template-columns: 1fr;
  }

  .viewer-actions {
    justify-content: flex-start;
    max-width: none;
  }
}

@media (max-width: 900px) {
  .lens-intro h1 {
    font-size: 3rem;
  }

  .lens-paper-inner,
  .lens-workspace {
    grid-template-columns: 1fr;
  }

  .paper-notice {
    max-width: 680px;
  }

  .lens-controls {
    position: static;
  }

  .mode-list {
    max-height: 440px;
  }
}

@media (max-width: 640px) {
  .lens-intro {
    padding: 2rem 0 1.7rem;
  }

  .lens-intro h1 {
    font-size: 2.35rem;
  }

  .lens-lede {
    font-size: 1rem;
  }

  .lens-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
  }

  .lens-summary div {
    min-width: 0;
    margin-right: 0.65rem;
    padding-right: 0.65rem;
  }

  .lens-summary dt {
    font-size: 1.3rem;
  }

  .lens-summary dd {
    font-size: 0.72rem;
  }

  .lens-paper-inner {
    gap: 1rem;
  }

  .category-buttons,
  .control-label {
    display: none;
  }

  .category-select,
  .category-select-label {
    display: block;
  }

  .viewer-header,
  .prompt-panel {
    padding: 1.1rem;
  }

  .viewer-header h2 {
    font-size: 1.45rem;
  }

  .viewer-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
  }

  .tool-button {
    min-width: 0;
    padding-inline: 0.45rem;
    font-size: 0.7rem;
  }

  .prompt-heading {
    display: grid;
  }

  .prompt-heading .tool-button {
    width: fit-content;
  }

  .markdown-body {
    min-height: 420px;
    padding: 1.15rem 1rem 2.25rem;
    font-size: 0.92rem;
  }

  .mode-note {
    margin: 1rem 1rem 0;
  }
}

@media (max-width: 390px) {
  .lens-shell,
  .lens-footer {
    width: min(100% - 1.25rem, 1320px);
  }

  .viewer-actions {
    grid-template-columns: 1fr;
  }

  .tool-button {
    justify-content: flex-start;
    padding-inline: 0.75rem;
    font-size: 0.78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lens-toast {
    transition: none;
  }
}