/* Kutubxona — spec §14. Faqat shu sahifa; global selektor yo'q.
   Ranglar faqat tokendan: komponentga hex yozilmaydi. */

.library-page { width: min(var(--content-width), calc(100% - 40px)); margin: 0 auto; padding: 32px 0 48px; }

.library-head { max-width: 68ch; margin-bottom: 24px; }
.library-head h1 { margin: 0; font-size: clamp(28px, 4vw, 40px); letter-spacing: -.035em; }
.library-head p { margin: 10px 0 0; color: var(--text-secondary); line-height: 1.6; }

/* Toolbar kutubxonaning o'zida — ikkinchi header yasalmaydi (spec §14). */
.library-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 20px; padding: 12px; border: 1px solid var(--border-subtle); border-radius: var(--radius-panel); background: var(--surface-structural); }
.library-search-field { flex: 1 1 260px; display: grid; gap: 6px; }
.library-search-field label { color: var(--text-tertiary); font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.library-search-field input { min-height: 44px; padding: 0 14px; border: 1px solid var(--border-strong); border-radius: var(--radius-control); color: var(--text-primary); background: var(--surface-interactive); font: inherit; }
.library-count { color: var(--text-tertiary); font-size: 13px; font-weight: 700; }
/* Kitob mavjud bo'lmagan tilda tarjima qilinmaydi — original til ochiq aytiladi. */
.library-toolbar .clinical-language { margin: 0; padding: 4px 10px; border: 1px solid var(--border-subtle); border-radius: 999px; color: var(--text-secondary); background: var(--canvas-raised); font-size: 12px; font-weight: 700; }

.library-status { min-height: 24px; margin: 0 0 16px; color: var(--text-secondary); font-size: 14px; }
.library-status[data-tone="error"] { color: var(--danger); }
.library-retry { min-height: 44px; margin-bottom: 16px; padding: 0 16px; border: 1px solid var(--border-strong); border-radius: var(--radius-control); color: var(--text-primary); background: var(--surface-interactive); font: inherit; font-weight: 650; cursor: pointer; }

.library-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 24px; align-items: start; }

.library-rail { display: grid; gap: 6px; padding: 12px; border: 1px solid var(--border-subtle); border-radius: var(--radius-card); background: var(--surface-structural); }
/* `.category-chip` — `css/components.css` da: uni malaka sahifasi ham ishlatadi. */

.library-groups { display: grid; gap: 30px; }
.library-group { display: grid; gap: 14px; }
/* Bo'lim sarlavhasi kitoblardan sokinroq: u yorliq, sarlavha emas. */
.library-group-title { margin: 0; color: var(--text-secondary); font-size: 12px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; }
/* Muqovasiz kitob uchun chizilgan muqova. Fon rangi yozuvdan keladi
   (`--book-tone`), shuning uchun bu yerda faqat uning ustidagi qatlamlar
   turadi: yorug'lik, chap qirradagi muqova qirrasi va oq matn. */
.book-cover-blank { --book-tone: var(--cover-tone); border-color: transparent; background: var(--book-tone); }
.book-cover-art { position: relative; display: grid; grid-template-rows: auto 1fr auto; gap: 8px; width: 100%; height: 100%; padding: 12px 12px 14px 16px; background-color: var(--book-tone); background-image: linear-gradient(158deg, rgb(255 255 255 / .14), rgb(255 255 255 / 0) 52%), linear-gradient(90deg, rgb(0 0 0 / .30) 0 5px, rgb(255 255 255 / .10) 5px 7px, rgb(0 0 0 / 0) 7px); }
.book-cover-brand { display: inline-flex; align-items: center; justify-content: center; gap: 6px; color: rgb(255 255 255 / .74); font-size: 9px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.book-cover-logo { width: 14px; height: 14px; flex: 0 0 auto; background: currentColor; -webkit-mask: url(/assets/icons/yangi/imkonia-qisqa-niqob.svg) center / contain no-repeat; mask: url(/assets/icons/yangi/imkonia-qisqa-niqob.svg) center / contain no-repeat; }
/* Sarlavha muqovaning o'zagi — shuning uchun u kartadagi eng yirik matn
   bo'ladi va serif bilan yoziladi: bosma kitob shunday ko'rinadi. */
.book-cover-label { align-self: center; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 6; line-clamp: 6; overflow: hidden; color: rgb(255 255 255 / .96); font-family: Charter, Georgia, "Noto Serif", "Times New Roman", serif; font-size: clamp(15px, 1.55vw, 19px); font-weight: 600; line-height: 1.22; letter-spacing: -.005em; text-align: center; text-wrap: balance; }
.book-cover-art[data-length="short"] .book-cover-label { font-size: clamp(17px, 1.9vw, 22px); }
.book-cover-art[data-length="long"] .book-cover-label { font-size: clamp(13px, 1.25vw, 15.5px); -webkit-line-clamp: 7; line-clamp: 7; }
.book-cover-rule { justify-self: center; width: 30px; height: 1px; background: rgb(255 255 255 / .34); }
.library-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(184px, 1fr)); gap: 18px; }

.book-card { display: grid; align-content: start; gap: 12px; padding: 14px; border: 1px solid var(--border-subtle); border-radius: var(--radius-card); background: var(--surface-interactive); box-shadow: var(--shadow-card); color: inherit; text-decoration: none; }
.book-cover { aspect-ratio: 3 / 4; display: grid; place-items: center; overflow: hidden; border: 1px solid var(--border-subtle); border-radius: var(--radius-control); background: var(--surface-selected); }
/* Muqova fayli 3:4 — `cover` qirqmaydi, boshqa nisbatdagi rasm esa markazdan olinadi. */
.book-cover-image { align-self: stretch; justify-self: stretch; width: 100%; height: 100%; display: block; object-fit: cover; }
.book-cover-initials { color: var(--accent-strong); font-size: clamp(24px, 6vw, 34px); font-weight: 800; letter-spacing: -.04em; }
.book-card-body { display: grid; align-content: start; gap: 4px; }
.book-card-title { color: var(--text-primary); font-size: 15px; line-height: 1.3; letter-spacing: -.015em; }
/* Chizilgan so'z muqovadagidek bir xil rangda qoladi — so'ndirilsa hazil emas,
   xato bo'lib ko'rinadi. Kichik o'lchamda ko'rinishi uchun chiziq qalinroq. */
.book-title-strike { text-decoration-line: line-through; text-decoration-thickness: .09em; }
.book-card-author { color: var(--text-secondary); font-size: 13px; }
.book-card-meta { display: flex; flex-wrap: wrap; gap: 8px; color: var(--text-tertiary); font-size: 12px; font-weight: 650; }
.book-badge { justify-self: start; margin-top: 4px; padding: 3px 9px; border: 1px solid var(--border-subtle); border-radius: 999px; color: var(--text-secondary); background: var(--canvas-raised); font-size: 11px; font-weight: 700; }

.book-detail { margin: 26px 0 0; padding: 22px; border: 1px solid var(--border-subtle); border-radius: var(--radius-panel); background: var(--surface-structural); }
.book-detail-crumb { margin: -12px 0 6px; }
.book-detail-head { display: grid; grid-template-columns: 168px minmax(0, 1fr); gap: 24px; align-items: start; }
.book-cover-large { width: 168px; }
.book-cover-large .book-cover-art { padding: 16px 14px 18px 20px; }
.book-cover-large .book-cover-label { -webkit-line-clamp: 8; line-clamp: 8; font-size: 20px; }
.book-cover-large .book-cover-brand { font-size: 10px; }
.book-detail-info { display: grid; gap: 10px; }
.book-detail-title { margin: 0; font-size: clamp(20px, 3vw, 28px); letter-spacing: -.03em; }
.book-detail-subtitle { margin: 0; color: var(--text-secondary); font-size: 15px; }
.book-detail-author { margin: 0; color: var(--text-tertiary); font-size: 14px; font-weight: 650; }
.book-detail-description { max-width: 68ch; margin: 6px 0 0; color: var(--text-secondary); line-height: 1.65; }

.book-facts { display: grid; grid-template-columns: auto auto; justify-content: start; gap: 4px 16px; margin: 4px 0 0; }
.book-facts dt { color: var(--text-tertiary); font-size: 12px; font-weight: 700; }
.book-facts dd { margin: 0; color: var(--text-primary); font-size: 13px; font-weight: 650; }

.book-detail-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }

.book-gate { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 4px 0 0; padding: 10px 12px; border: 1px solid var(--border-subtle); border-radius: var(--radius-control); color: var(--text-secondary); background: var(--canvas-raised); font-size: 13px; }
.book-gate-link { min-height: 24px; color: var(--accent-strong); font-weight: 700; }

.book-toc { margin-top: 24px; }
.book-toc h3 { margin: 0 0 10px; font-size: 15px; letter-spacing: -.01em; }
.book-toc-list { display: grid; gap: 6px; margin: 0; padding: 0; list-style: none; counter-reset: none; }
.book-toc-item { width: 100%; min-height: 44px; padding: 0 14px; display: flex; justify-content: space-between; align-items: center; gap: 16px; border: 1px solid var(--border-subtle); border-radius: var(--radius-control); color: var(--text-primary); background: var(--surface-interactive); font: inherit; font-size: 14px; text-align: left; cursor: pointer; }
.book-toc-page { color: var(--text-tertiary); font-size: 12px; font-weight: 700; white-space: nowrap; }

/* ── O'quvchi: immersiv stage (spec 2026-09-07 §3) ─────────────────────
   Butun ekran, header va mobil nav USTIDA (z-index 35, drawer 40 dan past).
   Matn shu qurilma ekraniga ustunlar bilan bo'linadi; bir ustun = bir ekran.
   Ranglar token: sepiya, dark va light — .reader[data-reader-theme] / [data-theme]
   attribut selektori orqali tokens.css to'plamini oladi. */

.reader {
  position: fixed; inset: 0; z-index: 35;
  --reader-font-size: 17px;
  --reader-leading: 1.7;
  /* Sans — sayt shrifti (Onest), mavzu matni bilan bir. Ilgari Inter edi:
     u saytga yuklanmaydi, matn tizim shriftiga tushib, yiriroq va kengroq
     ko'rinardi (egasi 29.09.2026: «mavzudagidek tabiiy emas»). */
  --reader-font-family: var(--font-sans);
  --reader-gap: 48px;
  --reader-col-w: 100%;
  --reader-top: calc(56px + env(safe-area-inset-top));
  --reader-bottom: calc(64px + env(safe-area-inset-bottom));
  --reader-side: max(20px, env(safe-area-inset-left), env(safe-area-inset-right));
  color: var(--text-primary);
  background: var(--canvas-raised);
  overscroll-behavior: contain;
}
/* Mini App to'liq ekrani (2026-09-28): Telegram tugmalari (chapda ←, o'ngda
   ⋮ va ✕) va telefonda status bar o'quvchi ustida suzadi. Yuqori panel
   ularning ostidan boshlanadi — ilgari orqaga tugmasi, «Aa» va mundarija
   tugmasi ular ostida qolardi (egasining kompyuterdagi skrinshoti).
   `--tg-bosh` — ikkalasining balandligi (shell.css); `max` — brauzerning
   xavfsiz hududi bilan ikki marta qo'shilmasin. */
:root[data-tg-toliq] .reader { --reader-tg: max(env(safe-area-inset-top), var(--tg-bosh, 0px)); --reader-top: calc(56px + var(--reader-tg)); }
:root[data-tg-toliq] .reader-bar-top { padding-top: var(--reader-tg); }
.reader[data-reader-font="serif"] { --reader-font-family: Charter, Georgia, "Noto Serif", "Times New Roman", serif; }
/* Sepiya rang rollari tokens.css da ([data-reader-theme="sepia"]) — dark
   bilan bir naqsh: attribut .reader ga tushadi, subtree to'plamni oladi. */

/* Viewport: barlar uchun joy oldindan ajratilgan — bar yashirilganda matn
   qayta joylanmaydi (ustun soni o'zgarmasin). */
.reader-viewport { position: absolute; inset: 0; padding: var(--reader-top) var(--reader-side) var(--reader-bottom); }
.reader-frame { position: relative; width: 100%; height: 100%; max-width: 760px; margin: 0 auto; overflow: hidden; }
/* Matn rangi mavzudagidek `--text-body` — sarlavhalar `--text-primary`. */
.reader-flow { color: var(--text-body); font-family: var(--reader-font-family); font-size: var(--reader-font-size); line-height: var(--reader-leading); }
/* Matn maydoni dasturiy fokus oladi (klaviatura uchun); butun ekranga ramka
   chizish shovqin — fokus belgisi boshqaruv tugmalarida qoladi. */
.reader-body:focus-visible { outline: none; }

/* Ekran rejimi: ustunlar. Kenglik JS dan (--reader-col-w = frame kengligi). */
.reader[data-reader-mode="page"] .reader-frame { touch-action: pan-y; }
.reader[data-reader-mode="page"] .reader-flow {
  height: 100%;
  column-width: var(--reader-col-w);
  column-gap: var(--reader-gap);
  column-fill: auto;
  will-change: transform;
}
/* Bob yangi ustundan boshlanadi. Bu bosma kitob odati, lekin asosiy sababi —
   barqarorlik: bob ustunlari undan oldingi matnga bog'liq bo'lmaydi, shuning
   uchun dvigatel oldingi bobni oynadan olib tashlaganda ekrandagi matn
   siljimaydi. `data-column-start` — oynaga oldidan bet qo'shilganda
   dvigatel qo'yadigan xuddi shunday chegara (library-reader.js, prepend).
   Majburiy uzilishdan keyin sarlavha chekkasi saqlanadi — 0 qilinadi, aks
   holda bet oynada birinchi bo'lganda u 1.4em ga sakraydi. */
.reader[data-reader-mode="page"] .reader-page-section:is([data-chapter-start="true"], [data-column-start="true"]) > .reader-blocks { break-before: column; }
.reader[data-reader-mode="page"] .reader-page-section:is([data-chapter-start="true"], [data-column-start="true"]) > .reader-blocks > :first-child { margin-top: 0; }
.reader[data-reader-mode="page"] .reader-flow[data-animate="true"] { transition: transform 240ms var(--ease-out); }
.reader[data-reader-mode="page"] .reader-flow[data-dragging="true"] { transition: none; }

/* Skroll rejimi: oddiy oqim, viewport o'zi skroll. Barlar doim ochiq. */
/* overflow-anchor: none — brauzerning o'z skroll-ankeri dvigatel kompensatsiyasi
   bilan ikki marta surardi (Safari'da anker yo'q, shuning uchun dvigatelniki qoladi). */
.reader[data-reader-mode="scroll"] .reader-viewport { overflow-y: auto; overscroll-behavior: contain; overflow-anchor: none; }
.reader[data-reader-mode="scroll"] .reader-frame { overflow: visible; height: auto; min-height: 100%; max-width: 68ch; }
.reader[data-reader-mode="scroll"] .reader-flow { padding-bottom: 32px; }
.reader-load-prev { width: 100%; min-height: 44px; margin: 0 0 16px; border: 1px solid var(--border-subtle); border-radius: var(--radius-control); color: var(--text-secondary); background: var(--surface-interactive); font: inherit; font-size: 14px; font-weight: 650; cursor: pointer; }

/* Bosma bet bo'limi: matn uzluksiz oqadi, chegara ko'rinmaydi. */
.reader-page-section { display: contents; }
.reader-heading { margin: 1.4em 0 .5em; color: var(--text-primary); font-size: 1.15em; line-height: 1.3; letter-spacing: -.02em; break-after: avoid; break-inside: avoid; }
.reader-page-section:first-child .reader-heading:first-child { margin-top: 0; }
.reader-paragraph { margin: 0 0 .9em; orphans: 2; widows: 2; }
.reader-quote { margin: 0 0 .9em; padding: .5em 1em; border-left: 3px solid var(--accent); color: var(--text-secondary); font-size: .95em; break-inside: avoid; }
.reader-list { margin: 0 0 .9em; padding-left: 1.4em; }
.reader-list li { break-inside: avoid; margin-bottom: .25em; }
.reader-note { margin: 0 0 .9em; padding: .6em .9em; border: 1px solid var(--border-subtle); border-radius: var(--radius-control); color: var(--text-secondary); background: var(--canvas); font-size: .92em; break-inside: avoid; }
.reader-figure { margin: 0 0 1em; break-inside: avoid; }
.reader-figure img { display: block; max-width: 100%; max-height: 80%; margin: 0 auto; border-radius: var(--radius-control); }
.reader-figure figcaption { margin-top: .4em; color: var(--text-tertiary); font-size: .85em; text-align: center; }

/* Yopiq / xato / oxiri ekrani — alohida ustun, matn bilan aralashmaydi. */
.reader-locked, .reader-end {
  height: 100%; display: grid; align-content: center; justify-items: start; gap: 12px;
  padding: 24px; border: 1px solid var(--border-subtle); border-radius: var(--radius-card);
  background: var(--canvas); font-family: Inter, ui-sans-serif, system-ui, sans-serif; font-size: 16px; line-height: 1.6;
  break-before: column; break-inside: avoid;
}
.reader[data-reader-mode="scroll"] .reader-locked, .reader[data-reader-mode="scroll"] .reader-end { height: auto; margin-top: 24px; }
.reader-locked h2, .reader-end h2 { margin: 0; font-size: 18px; }
.reader-locked p, .reader-end p { margin: 0; color: var(--text-secondary); }

.reader-status { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); margin: 0; padding: 10px 16px; border: 1px solid var(--border-subtle); border-radius: 999px; color: var(--text-secondary); background: var(--surface-structural); font-size: 14px; font-weight: 650; backdrop-filter: blur(12px); }

/* Barlar: absolute overlay. Yopiq holatda fon yo'qoladi, faqat meta va foiz
   qoladi — Play Books'dagi doimiy bet raqami kabi. */
.reader-bar { position: absolute; left: 0; right: 0; z-index: 3; display: flex; align-items: center; gap: 8px; padding: 0 12px; background: var(--surface-structural); backdrop-filter: blur(18px) saturate(125%); transition: background-color 200ms var(--ease-standard), border-color 200ms var(--ease-standard); }
.reader-bar-top { top: 0; height: var(--reader-top); padding-top: env(safe-area-inset-top); border-bottom: 1px solid var(--border-subtle); }
.reader-bar-bottom { bottom: 0; height: var(--reader-bottom); padding-bottom: env(safe-area-inset-bottom); border-top: 1px solid var(--border-subtle); }
.reader-bar-actions { display: flex; gap: 4px; }
.reader-icon-button { min-width: 44px; min-height: 44px; display: inline-grid; place-items: center; border: 1px solid transparent; border-radius: var(--radius-control); color: var(--text-primary); background: transparent; cursor: pointer; }
.reader-icon-button[aria-pressed="true"] { color: var(--accent-strong); background: var(--surface-selected); }
.reader-icon-button[aria-pressed="true"] svg { fill: currentColor; }
.reader-icon-button:disabled { color: var(--text-tertiary); cursor: default; }
.reader-chevron-back svg { transform: rotate(180deg); }
.reader-title-group { flex: 1 1 auto; min-width: 0; }
.reader-title { margin: 0; overflow: hidden; font-size: 15px; letter-spacing: -.01em; white-space: nowrap; text-overflow: ellipsis; }
.reader-meta { margin: 2px 0 0; overflow: hidden; color: var(--text-tertiary); font-size: 12px; white-space: nowrap; text-overflow: ellipsis; }
.reader-progress-group { flex: 1 1 auto; min-width: 0; display: grid; gap: 2px; justify-items: center; }
.reader-slider { width: 100%; min-height: 32px; margin: 0; accent-color: var(--accent); cursor: pointer; }
.reader-progress { margin: 0; color: var(--text-tertiary); font-size: 12px; font-weight: 650; white-space: nowrap; }

.reader[data-reader-chrome="closed"] .reader-bar { border-color: transparent; background: transparent; backdrop-filter: none; pointer-events: none; }
/* Ortga tugmasi yashirilgan holatda ham qoladi — faqat sokin bo'ladi.
   Immersiv rejimdan chiqish yo'li ko'rinmay qolsa o'quvchi qamalib qoladi
   (2026-09-22, egasining eslatmasi). */
.reader[data-reader-chrome="closed"] .reader-back { pointer-events: auto; opacity: .38; transition: opacity 160ms var(--ease-out); }
.reader[data-reader-chrome="closed"] .reader-back:hover,
.reader[data-reader-chrome="closed"] .reader-back:focus-visible { opacity: 1; }
.reader[data-reader-chrome="closed"] .reader-bar-actions,
.reader[data-reader-chrome="closed"] .reader-title,
.reader[data-reader-chrome="closed"] .reader-slider,
.reader[data-reader-chrome="closed"] .reader-nav-button { visibility: hidden; }
.reader[data-reader-chrome="closed"] .reader-title-group { text-align: center; }
.reader[data-reader-chrome="closed"] .reader-meta { margin-top: 0; }

.reader-toast { position: absolute; left: 50%; bottom: calc(var(--reader-bottom) + 12px); z-index: 4; margin: 0; padding: 10px 16px; border-radius: 999px; color: var(--text-on-accent); background: var(--accent-strong); font-size: 14px; font-weight: 650; transform: translateX(-50%); box-shadow: var(--shadow-float); }

/* Varaqchalar: mobilda pastdan, keng ekranda o'ngdan. */
.reader-sheet-backdrop { position: absolute; inset: 0; z-index: 6; display: grid; align-items: end; background: rgba(1, 12, 20, .42); }
/* Ochilish va yopilish — `js/oyna.js` (spec 2026-09-23 §6): varaq pastdan
   (kompyuterda o'ngdan) chiqadi va shu yo'l bilan qaytadi. Ilgari bu yerda
   faqat kirish animatsiyasi turardi, yopilish esa `hidden` bilan darrov
   bo'lardi. CSS animatsiyasi qolsa u WAAPI bilan to'qnashardi. */
.reader-sheet { max-height: min(82vh, 640px); display: grid; grid-template-rows: auto minmax(0, 1fr); padding: 0 0 max(16px, env(safe-area-inset-bottom)); border: 1px solid var(--border-subtle); border-bottom: 0; border-radius: var(--radius-panel) var(--radius-panel) 0 0; color: var(--text-primary); background: var(--canvas-raised); box-shadow: var(--shadow-float); overflow: hidden; }
.reader-sheet-head { display: flex; justify-content: space-between; align-items: center; padding: 10px 10px 8px 20px; border-bottom: 1px solid var(--border-subtle); }
.reader-sheet-head h3 { margin: 0; font-size: 17px; letter-spacing: -.015em; }
.reader-sheet-scroll { overflow-y: auto; padding: 8px 12px 4px; }
.reader-sheet-subtitle { margin: 16px 0 6px; padding: 0 8px; color: var(--text-tertiary); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.reader-sheet-empty { margin: 4px 0 8px; padding: 0 8px; color: var(--text-secondary); font-size: 14px; line-height: 1.5; }

.reader-rail { display: grid; gap: 4px; }
.reader-chapter { min-height: 44px; padding: 8px 12px; display: grid; gap: 2px; border: 1px solid transparent; border-radius: var(--radius-control); color: var(--text-secondary); background: transparent; font: inherit; text-align: left; cursor: pointer; }
.reader-chapter[aria-current="true"] { color: var(--text-primary); border-color: var(--border-strong); background: var(--surface-selected); }
.reader-chapter-title { font-size: 14px; font-weight: 650; line-height: 1.3; }
.reader-chapter-page { color: var(--text-tertiary); font-size: 12px; }

.reader-bookmarks { display: grid; gap: 4px; margin: 0; padding: 0; list-style: none; }
.reader-bookmark { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: stretch; border: 1px solid var(--border-subtle); border-radius: var(--radius-control); background: var(--surface-interactive); }
.reader-bookmark-go { min-height: 44px; padding: 8px 12px; display: grid; gap: 2px; border: 0; color: var(--text-primary); background: transparent; font: inherit; text-align: left; cursor: pointer; }
.reader-bookmark-where { color: var(--accent-strong); font-size: 12px; font-weight: 750; }
.reader-bookmark-snippet { overflow: hidden; color: var(--text-secondary); font-size: 13px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.reader-bookmark-delete { min-width: 44px; border: 0; border-left: 1px solid var(--border-subtle); color: var(--text-tertiary); background: transparent; cursor: pointer; }

/* Sozlamalar varaqchasi — mavzu o'quvchisining «Aa» paneli bilan bir til
   (`reading.css` .view-*: yorliq tepada, tanlov belgi bilan, nomi
   `aria-label` da). Bu yerda faqat varaqchaga xos farq: panel foni
   (halqa oralig'i shu rangda hisoblanadi), sarlavha o'lchami, qo'shimcha
   ikki qator — shrift va rejim. */
.reader-sheet-view { --view-ring: var(--accent); --view-gap: var(--canvas); background: var(--canvas); }
.reader-sheet-view .reader-sheet-head { gap: 4px; padding: 10px 10px 8px 20px; }
.reader-sheet-view .reader-sheet-head h3 { margin-right: auto; font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
.reader-sheet-view .reader-sheet-scroll { padding: 0 20px 8px; }
/* «Sayt» doirasi: library.js unga sayt temasini (`data-theme`) qo'yadi —
   o'quvchi foni sepiya bo'lsa ham doira sayt ranglarida qoladi. */
.view-options-theme .view-option[data-reader-set="theme"][data-value="auto"] { background: linear-gradient(135deg, var(--canvas) 50%, var(--text-primary) 50%); color: transparent; }
.view-options-size .view-option:disabled, .view-options-size .view-option:disabled:hover { border-color: transparent; color: var(--text-tertiary); opacity: .45; cursor: default; }
[data-reader-set="leading"][data-value="1"] .view-qatorlar { height: 16px; }
[data-reader-set="leading"][data-value="2"] .view-qatorlar { height: 20px; }
/* Shrift va rejim: ikki teng tugma. Shrift — «Aa» o'sha shriftda. */
.view-options-font, .view-options-mode { flex-wrap: nowrap; }
.view-options-font .view-option, .view-options-mode .view-option { flex: 1 1 0; }
.view-shrift { font-family: var(--font-sans); font-size: 17px; font-weight: 600; letter-spacing: -.01em; }
.reader-serif-sample { font-family: Charter, Georgia, "Noto Serif", serif; }

/* Sotib olish qatori — kitob sahifasida, amallardan keyin (spec §14.5). */
.book-buy { display: grid; gap: 8px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border-subtle); }
.book-buy-title { margin: 0; color: var(--text-secondary); font-size: 13px; font-weight: 650; }
.book-buy-links { display: flex; flex-wrap: wrap; gap: 8px; }
.book-buy-disclaimer { margin: 0; max-width: 640px; color: var(--text-tertiary); font-size: 12px; line-height: 1.5; }
/* Do'kon kitobi kartasida hajm o'rniga yorliq. */
.book-card-store { color: var(--accent-strong); }
/* Sahifa osti izohi: hamkorlik bayonoti va mualliflik huquqi murojaati. */
.library-note { margin: 24px 0 0; color: var(--text-tertiary); font-size: 12px; line-height: 1.5; }
/* Rozilik oynasi — `purchase-sheet` skeleti, matni kengroq. */
.consent-body { margin: 12px 0 16px; color: var(--text-secondary); font-size: 14px; line-height: 1.55; }

@media (min-width: 901px) {
  .reader-sheet-backdrop { justify-items: end; align-items: stretch; }
  .reader-sheet { width: min(420px, 92vw); max-height: none; border-bottom: 1px solid var(--border-subtle); border-right: 0; border-radius: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .reader[data-reader-mode="page"] .reader-flow[data-animate="true"] { transition: none; }
  .reader[data-reader-chrome="closed"] .reader-back { transition: none; }
}

/* ── Tashqi katalog ──────────────────────────────────────── */
/* `MP books/` kitoblari. Karta skeleti javon kartasi bilan bir xil — farq
   faqat amalda: o‘quvchi emas, yuklab olish. */

.rail-group { margin: 10px 0 2px; padding: 0 14px; color: var(--text-tertiary); font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.rail-group:first-child { margin-top: 0; }

.book-card-external { align-content: start; }
.book-card-format { text-transform: uppercase; letter-spacing: .04em; }
/* Sayt tilidagi nom — pasportdan keyin, undan sokinroq. */
.book-card-alt { margin-top: 4px; color: var(--text-secondary); font-size: 12.5px; line-height: 1.35; }
.book-download-icon { display: inline-flex; }
/* Mundarija bandi tashqi kitobda bosilmaydi: ochiladigan o‘quvchi yo‘q. */
.book-toc-static { cursor: default; background: transparent; }
.book-toc-sub .book-toc-static { margin-left: 18px; color: var(--text-secondary); font-size: 13px; }

/* ── Mobil ───────────────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .library-page { width: min(100% - 28px, 720px); padding: 24px 0 40px; }
  .library-layout { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  /* Rail gorizontal selektorga aylanadi — spec §14. */
  .library-rail { display: flex; gap: 8px; overflow-x: auto; padding: 8px; scrollbar-width: none; }
  .category-chip { flex: 0 0 auto; white-space: nowrap; }
  .library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .book-detail-head { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .book-cover-large { width: 132px; }
  .reader { --reader-side: max(18px, env(safe-area-inset-left), env(safe-area-inset-right)); --reader-gap: 36px; }
  .reader-bar { padding: 0 6px; }
}

@media (max-width: 480px) {
  .library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .book-card { padding: 10px; }
  .reader-title { font-size: 14px; }
}