/* Editorial reading room and source-led conversation demonstration. */
.library-experience[hidden] { display: none !important; }
body[data-mode="chat"] .library-experience { display: none !important; }
.library-experience[data-kind="reading"] { max-width: 1470px; margin: 0 auto; padding: 30px clamp(24px,4vw,72px) 70px; color: var(--ink); }
.reading-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; min-height: 30px; padding-right: 90px; color: var(--muted); font-size: 11px; }
.reading-breadcrumb button { padding: 0; border: 0; background: none; color: inherit; font: inherit; }
.reading-breadcrumb b { font-weight: 500; }
.reading-breadcrumb .reading-copy-link { margin-left: auto; color: #07858b; }
.reading-head { padding: 48px 0 30px; border-bottom: 2px solid var(--ink); }
.reading-eyebrow { font-size: 10px; letter-spacing: .16em; color: #54828a; font-weight: 700; line-height: 1.7; margin: 0 0 24px; }
.reading-eyebrow span { letter-spacing: 0; margin-left: 18px; padding-left: 18px; border-left: 1px solid var(--line); font-weight: 500; }
.reading-kicker { display: flex; flex-wrap: wrap; gap: 14px; color: #087f86; font-size: 11px; margin: 0 0 18px; }
.reading-kicker time { color: var(--muted); }
.reading-head h1 { font-size: clamp(28px,3vw,43px); letter-spacing: -.035em; line-height: 1.55; max-width: 1000px; margin: 0 0 18px; font-weight: 720; }
.reading-original { font: 15px/1.8 Georgia,'Times New Roman',serif; color: var(--muted); max-width: 1000px; margin: 0 0 22px; overflow-wrap: anywhere; }
.reading-byline { display: flex; gap: 20px; flex-wrap: wrap; font-size: 11px; color: var(--muted); line-height: 1.8; }
.reading-byline b { font-weight: 600; color: var(--ink); }
.reading-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.reading-actions button, .reading-actions a, .reading-primary { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 40px; border: 1px solid var(--line); border-radius: 5px; padding: 10px 17px; font-family: inherit; font-size: 12px; font-weight: 600; line-height: 1.5; background: var(--surface); color: var(--ink); text-decoration: none; }
.reading-primary, .reading-actions .reading-primary { background: #087f85; color: #fff; border-color: #087f85; }
.reading-actions button[aria-pressed="true"] { color: #07858b; background: var(--soft); }
.reading-action-status { min-height: 15px; margin: 12px 0 0; color: #07858b; font-size: 11px; }
.reading-action-status input { display: block; width: 100%; padding: 8px; margin-top: 7px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); }
.reading-layout { display: grid; grid-template-columns: minmax(0,1fr) 265px; gap: 52px; padding-top: 36px; align-items: start; }
.reading-body, .reading-rail { min-width: 0; }
.reading-body > section { padding: 30px 0; border-bottom: 1px solid var(--line); }
.reading-body > section:first-child { padding-top: 0; }
.reading-section-number { color: #6f9298; font-size: 10px !important; font-weight: 650; letter-spacing: .1em; margin: 0 0 16px !important; }
.reading-body h2 { font-size: 25px; line-height: 1.6; letter-spacing: -.02em; margin: 0 0 18px; }
.reading-body h3 { font-size: 13px; margin: 20px 0 9px; }
.reading-body p { font-size: 14px; line-height: 2; color: var(--muted); margin: 0 0 12px; }
.reading-body .reading-lead { font-size: 17px; line-height: 2.1; color: var(--ink); }
.reading-scope { display: flex; align-items: baseline; gap: 14px; margin-top: 25px; padding-top: 18px; border-top: 1px solid var(--line); }
.reading-scope span { font-size: 10px; color: #07858b; white-space: nowrap; }
.reading-scope p { font-size: 11px; margin: 0; }
.reading-checklist { list-style: none; counter-reset: reading-step; padding: 0; margin: 0; }
.reading-checklist li { counter-increment: reading-step; display: flex; align-items: baseline; gap: 20px; font-size: 14px; line-height: 1.9; padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.reading-checklist li:last-child { border-bottom: 0; }
.reading-checklist li::before { content: "0" counter(reading-step); color: #78989d; font: 20px Georgia,serif; }
.reading-source-figure { margin: 0 0 8px; padding: 0; border-bottom: 1px solid var(--line); }
.reading-source-figure img { display: block; width: auto; max-width: min(100%,calc(var(--source-width,2400px)/2)); height: auto; max-height: 550px; object-fit: contain; background: transparent; }
.reading-source-figure figcaption { display: flex; align-items: start; justify-content: space-between; gap: 18px; font-size: 10px; line-height: 1.8; color: var(--muted); padding: 13px 0; }
.reading-source-figure figcaption a { color: #07858b; text-decoration: none; }
.reading-image-attribution { flex-shrink: 0; max-width: 45%; text-align: right; }
.reading-image-attribution small { display: block; font-size: 9px; margin-top: 4px; }
.reading-rail > section { margin-bottom: 30px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.reading-rail h2 { font-size: 18px; margin: 0 0 20px; }
.reading-rail .reading-eyebrow { font-size: 9px; margin-bottom: 12px; }
.reading-facts { border-top: 3px solid #0d7f85; padding: 22px 22px 25px; background: var(--soft); }
.reading-facts dl { margin: 0 0 22px; }
.reading-facts dt { color: var(--muted); font-size: 10px; margin-top: 15px; }
.reading-facts dd { margin: 5px 0 0; font-size: 12px; line-height: 1.8; overflow-wrap: anywhere; }
.reading-facts a, .reading-correction { color: #087f85; font-size: 11px; text-decoration: none; }
.reading-correction { display: block; padding: 14px 16px; background: var(--soft); margin-top: 18px; }
.reading-next-question > span { font-size: 10px; color: var(--muted); }
.reading-next-question h3 { font-size: 17px; line-height: 1.8; margin: 13px 0 18px; }
.reading-next-question button { border: 0; background: none; padding: 0; font-size: 12px; color: #07858b; }
.reading-next-question small { display: block; color: var(--muted); font-size: 10px; margin-top: 10px; }
.reading-related article { padding: 17px 0; border-top: 1px solid var(--line); }
.reading-related article > span { color: #5b8991; font-size: 10px; }
.reading-related h3 { font-size: 14px; line-height: 1.8; margin: 8px 0; }
.reading-related h3 button { all: unset; cursor: pointer; }
.reading-related small { color: var(--muted); font-size: 10px; line-height: 1.7; }
.reading-notes label { display: flex; justify-content: space-between; gap: 12px; font-size: 12px; margin: 15px 0 12px; }
.reading-notes label span { font-size: 10px; color: var(--muted); }
.reading-notes textarea { width: 100%; resize: vertical; min-height: 145px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); color: var(--ink); padding: 15px; font: inherit; font-size: 13px; line-height: 1.9; }
.reading-note-footer { display: flex; align-items: center; gap: 12px; justify-content: space-between; margin-top: 12px; }
.reading-note-footer > span { font-size: 10px; color: var(--muted); }
.library-experience[data-kind="reading"][data-category="classics"] { background: #fffdf7; color: #403d33; }
.library-experience[data-category="classics"] .reading-head h1, .library-experience[data-category="classics"] .reading-body h2 { font-family: 'Songti SC',SimSun,serif; font-weight: 500; }
.library-experience[data-category="classics"] .reading-facts { border-color: #97704f; background: #f3eddf; }
.library-experience[data-category="classics"] .reading-kicker, .library-experience[data-category="classics"] .reading-eyebrow, .library-experience[data-category="classics"] .reading-section-number { color: #8b684a; }
.library-experience[data-category="classics"] .reading-primary { background: #75654e; border-color: #75654e; }
.library-experience button:focus-visible, .library-experience a:focus-visible, .reading-demo-form button:focus-visible, .reading-citation:focus-visible { outline: 2px solid #00a8a1; outline-offset: 4px; }
body[data-reading-chat="true"] #answerView .followup, body[data-reading-chat="true"] #answerView .answer-content > .notice, body[data-reading-chat="true"] #answerView > .answer-top > div, body[data-reading-chat="true"] #answerView .feedback { display: none !important; }
.reading-demo-badge { display: flex; align-items: center; gap: 8px; font-size: 11px; color: #087e86; background: var(--soft); padding: 10px 12px; margin-bottom: 25px; border-radius: 4px; }
.reading-demo-badge i { width: 6px; height: 6px; border-radius: 50%; background: #1fa49a; }
.reading-answer-section { padding: 20px 0; border-bottom: 1px solid var(--line); }
.reading-answer-section > div > span { font-size: 10px; color: #62878e; }
.reading-answer-section h3 { line-height: 1.8; }
.reading-answer-section p { line-height: 2; }
.reading-citation { display: inline; border: 0; padding: 0 3px; font: inherit; font-size: 12px; vertical-align: super; color: #087f85; background: transparent; }
.reading-answer-boundary { margin-top: 25px; padding: 18px; background: var(--soft); border-left: 2px solid #77aaa9; }
.reading-answer-boundary b { font-size: 12px; }
.reading-answer-boundary p, .reading-custom-scope { font-size: 12px; color: var(--muted); line-height: 1.9; }
.reading-answer-boundary p { margin-bottom: 0; }
.reading-answer-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 15px; margin-top: 22px; }
.reading-answer-actions button { border: 1px solid var(--line); background: var(--surface); color: #087f85; font-size: 11px; border-radius: 4px; padding: 9px 12px; }
.reading-answer-actions span { font-size: 10px; color: #087f85; }
.reading-source-scope { color: var(--muted); font-size: 11px; line-height: 1.8; }
.reading-demo-source { display: flex; align-items: start; gap: 12px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.reading-citation-number { display: flex; justify-content: center; align-items: center; flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--soft); font-size: 11px; color: #087f85; }
.reading-demo-source > div { min-width: 0; }
.reading-demo-source div > span { color: var(--muted); font-size: 10px; line-height: 1.7; }
.reading-demo-source h3 { font-size: 13px; line-height: 1.8; margin: 9px 0; }
.reading-demo-source h3 button { all: unset; cursor: pointer; }
.reading-demo-source small { display: block; color: var(--muted); font-size: 10px; line-height: 1.8; }
.reading-demo-source a { display: inline-block; margin-top: 12px; font-size: 10px; color: #087f85; text-decoration: none; }
.reading-demo-rail-note { padding-top: 22px; color: var(--muted); font-size: 11px; line-height: 1.8; }
.reading-demo-form { border-top: 1px solid var(--line); margin-top: 30px; padding-top: 22px; }
.reading-demo-presets { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.reading-demo-presets button { border: 1px solid var(--line); background: var(--surface); color: var(--ink); padding: 8px 11px; border-radius: 20px; font-size: 11px; }
.reading-demo-form label { display: block; font-size: 12px; margin-bottom: 12px; }
.reading-demo-form > div:not(.reading-demo-presets) { display: flex; align-items: end; gap: 10px; border: 1px solid var(--line); border-radius: 8px; padding: 12px; background: var(--surface); }
.reading-demo-form textarea { flex: 1; min-width: 0; width: 100%; resize: vertical; border: 0; background: none; color: var(--ink); font: inherit; font-size: 12px; line-height: 1.8; outline: none; }
.reading-demo-form button[type="submit"] { width: 34px; height: 34px; flex-shrink: 0; border: 0; background: #087f85; color: #fff; border-radius: 50%; }
.reading-demo-form > small { display: block; font-size: 10px; color: var(--muted); margin-top: 9px; }
.reading-table-wrap { overflow-x: auto; }
.reading-answer-comparison table { width: 100%; border-collapse: collapse; font-size: 12px; }
.reading-answer-comparison th, .reading-answer-comparison td { text-align: left; padding: 12px 9px; border-bottom: 1px solid var(--line); line-height: 1.8; }
body[data-theme="dark"] .reading-eyebrow, body[data-theme="dark"] .reading-kicker, body[data-theme="dark"] .reading-citation, body[data-theme="dark"] .reading-demo-source a, body[data-theme="dark"] .reading-demo-badge, body[data-theme="dark"] .reading-actions button[aria-pressed="true"] { color: #a1d5d0; }
body[data-theme="dark"] .library-experience[data-kind="reading"][data-category="classics"] { background: #151d1b; color: #e0ddc9; }
body[data-theme="dark"] .library-experience[data-category="classics"] .reading-facts { background: #292c23; border-color: #b79b76; }
body[data-theme="dark"] .library-experience[data-category="classics"] .reading-kicker, body[data-theme="dark"] .library-experience[data-category="classics"] .reading-eyebrow, body[data-theme="dark"] .library-experience[data-category="classics"] .reading-section-number { color: #d4b58a; }
@media (max-width: 1150px) { .reading-layout { grid-template-columns: minmax(0,1fr) 230px; gap: 30px; } .reading-head h1 { font-size: 32px; } }
@media (max-width: 980px) { .reading-layout { grid-template-columns: minmax(0,1fr); } .reading-rail { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 25px; } .reading-related { grid-column: 1 / -1; } .reading-rail > section { margin-bottom: 0; } }
@media (max-width: 768px) {
  .library-experience[data-kind="reading"] { padding: 84px 20px 40px; }
  .reading-breadcrumb { padding-right: 0; gap: 8px; font-size: 10px; }
  .reading-breadcrumb .reading-copy-link { flex-basis: 100%; text-align: left; margin-top: 10px; }
  .reading-head { padding-top: 30px; }
  .reading-head h1 { font-size: 28px; line-height: 1.6; }
  .reading-eyebrow { font-size: 9px; letter-spacing: .08em; }
  .reading-eyebrow span { display: block; border: 0; margin: 8px 0 0; padding: 0; }
  .reading-original { font-size: 13px; }
  .reading-byline { gap: 8px; }
  .reading-byline span { flex-basis: 100%; }
  .reading-actions { gap: 8px; }
  .reading-actions button, .reading-actions a { padding-inline: 12px; font-size: 11px; }
  .reading-layout { gap: 26px; padding-top: 25px; }
  .reading-body h2 { font-size: 22px; }
  .reading-body .reading-lead { font-size: 15px; }
  .reading-scope { display: block; }
  .reading-scope span { display: block; margin-bottom: 6px; }
  .reading-rail { grid-template-columns: minmax(0,1fr); }
  .reading-related { grid-column: auto; }
  .reading-source-figure figcaption { display: block; }
  .reading-image-attribution { display: block; text-align: left; max-width: none; margin-top: 7px; }
  .reading-note-footer { flex-wrap: wrap; }
  .reading-notes label { display: block; }
  .reading-notes label span { display: block; margin-top: 7px; }
}