/* ACASEN Library -- public site (application/views/library/*).
   Warm "paper" palette, serif display headings, RTL-aware (logical props). */

:root {
  --lib-ink: #1c1b29;
  --lib-ink-2: #3a3950;
  --lib-muted: #6c6b7d;
  --lib-faint: #9d9cab;
  --lib-bg: #faf8f4;
  --lib-surface: #ffffff;
  --lib-surface-2: #f3f0e9;
  --lib-line: #e9e5dc;
  --lib-brand: #3c30c8;
  --lib-brand-ink: #2b21a3;
  --lib-brand-soft: #ecebfc;
  --lib-accent: #d98b1f;
  --lib-accent-soft: #fbf0dc;
  --lib-green: #0e7f58;
  --lib-green-soft: #e1f4ec;
  --lib-red: #c0352b;
  --lib-red-soft: #fbe6e3;
  --lib-radius: 14px;
  --lib-radius-sm: 9px;
  --lib-shadow: 0 1px 2px rgba(28, 27, 41, .05), 0 8px 24px -12px rgba(28, 27, 41, .18);
  --lib-shadow-lg: 0 20px 50px -20px rgba(28, 27, 41, .35);
  --lib-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --lib-display: "Fraunces", Georgia, "Times New Roman", serif;
  --lib-arabic: "Noto Naskh Arabic", "Noto Sans Arabic", "Segoe UI", Tahoma, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --lib-ink: #ecebf3; --lib-ink-2: #c9c8d6; --lib-muted: #a09fb2; --lib-faint: #75748a;
    --lib-bg: #121119; --lib-surface: #1b1a25; --lib-surface-2: #23222f; --lib-line: #2f2e3d;
    --lib-brand: #8d84ff; --lib-brand-ink: #b3adff; --lib-brand-soft: rgba(141, 132, 255, .16);
    --lib-accent: #f0b04f; --lib-accent-soft: rgba(240, 176, 79, .15);
    --lib-green: #4ccf9b; --lib-green-soft: rgba(76, 207, 155, .14);
    --lib-red: #ff8a7e; --lib-red-soft: rgba(255, 138, 126, .14);
    --lib-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 26px -12px rgba(0, 0, 0, .6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --lib-ink: #ecebf3; --lib-ink-2: #c9c8d6; --lib-muted: #a09fb2; --lib-faint: #75748a;
  --lib-bg: #121119; --lib-surface: #1b1a25; --lib-surface-2: #23222f; --lib-line: #2f2e3d;
  --lib-brand: #8d84ff; --lib-brand-ink: #b3adff; --lib-brand-soft: rgba(141, 132, 255, .16);
  --lib-accent: #f0b04f; --lib-accent-soft: rgba(240, 176, 79, .15);
  --lib-green: #4ccf9b; --lib-green-soft: rgba(76, 207, 155, .14);
  --lib-red: #ff8a7e; --lib-red-soft: rgba(255, 138, 126, .14);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body.lib {
  margin: 0; background: var(--lib-bg); color: var(--lib-ink);
  font: 15.5px/1.55 var(--lib-font); min-height: 100vh; display: flex; flex-direction: column;
}
[dir="rtl"] body.lib, [dir="rtl"] .lib-display { font-family: var(--lib-arabic); }
body.lib a { color: var(--lib-brand); text-decoration: none; }
body.lib a:hover { text-decoration: underline; }
body.lib img { max-width: 100%; }
.lib-ic { flex: none; vertical-align: middle; }
.lib-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.lib-wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
main.lib-main { flex: 1; }
:focus-visible { outline: 3px solid var(--lib-brand); outline-offset: 2px; border-radius: 6px; }

/* ---------- header ---------- */
.lib-top { position: sticky; top: 0; z-index: 40; background: color-mix(in srgb, var(--lib-bg) 88%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--lib-line); }
.lib-top .lib-wrap { display: flex; align-items: center; gap: 18px; height: 66px; }
.lib-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--lib-ink) !important; font-weight: 700; white-space: nowrap; text-decoration: none !important; }
.lib-brand .mk { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--lib-brand), #6c4ce0); color: #fff; display: grid; place-items: center; box-shadow: 0 6px 16px -8px var(--lib-brand); }
.lib-brand .txt { font-family: var(--lib-display); font-size: 19px; letter-spacing: -.01em; }
.lib-brand .txt b { color: var(--lib-brand); font-weight: 700; }
.lib-nav { display: flex; align-items: center; gap: 2px; }
.lib-nav a { color: var(--lib-ink-2); padding: 8px 12px; border-radius: 9px; font-weight: 550; font-size: 14.5px; text-decoration: none !important; }
.lib-nav a:hover { background: var(--lib-surface-2); color: var(--lib-ink); }
.lib-nav a.on { color: var(--lib-brand); background: var(--lib-brand-soft); }
.lib-top-search { flex: 1; max-width: 360px; margin-inline-start: auto; position: relative; }
.lib-top-search input { width: 100%; height: 40px; border-radius: 999px; border: 1px solid var(--lib-line); background: var(--lib-surface); color: var(--lib-ink); padding: 0 16px 0 40px; font: inherit; font-size: 14px; }
[dir="rtl"] .lib-top-search input { padding: 0 40px 0 16px; }
.lib-top-search .lib-ic { position: absolute; inset-inline-start: 14px; top: 11px; color: var(--lib-faint); }
.lib-top-right { display: flex; align-items: center; gap: 8px; }
.lib-lang { position: relative; }
.lib-lang > button, .lib-iconbtn { height: 38px; min-width: 38px; border-radius: 10px; border: 1px solid var(--lib-line); background: var(--lib-surface); color: var(--lib-ink-2); display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 0 10px; font: inherit; font-size: 13.5px; font-weight: 600; cursor: pointer; }
.lib-lang > button:hover, .lib-iconbtn:hover { border-color: var(--lib-faint); }
.lib-pop { position: absolute; top: calc(100% + 6px); inset-inline-end: 0; min-width: 190px; background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: 12px; box-shadow: var(--lib-shadow-lg); padding: 6px; display: none; z-index: 60; }
.lib-pop.open { display: block; }
.lib-pop a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px; color: var(--lib-ink) !important; font-size: 14px; text-decoration: none !important; }
.lib-pop a:hover { background: var(--lib-surface-2); }
.lib-pop a.on { color: var(--lib-brand) !important; font-weight: 650; }
.lib-pop .sep { height: 1px; background: var(--lib-line); margin: 6px 4px; }
.lib-pop .who { padding: 8px 12px 10px; font-size: 13px; color: var(--lib-muted); }
.lib-pop .who b { display: block; color: var(--lib-ink); font-size: 14px; }
.lib-avatar { width: 38px; height: 38px; border-radius: 50%; background: var(--lib-brand-soft); color: var(--lib-brand-ink); font-weight: 700; display: grid; place-items: center; border: 0; cursor: pointer; font: inherit; font-weight: 700; }
.lib-menu-toggle { display: none; }

/* ---------- buttons / badges ---------- */
.lib-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 20px; border-radius: 11px; border: 1px solid var(--lib-line); background: var(--lib-surface); color: var(--lib-ink) !important; font: inherit; font-weight: 650; font-size: 15px; cursor: pointer; text-decoration: none !important; white-space: nowrap; transition: transform .12s, box-shadow .12s, background .12s; }
.lib-btn:hover { border-color: var(--lib-faint); }
.lib-btn:active { transform: translateY(1px); }
.lib-btn-primary { background: var(--lib-brand); border-color: var(--lib-brand); color: #fff !important; box-shadow: 0 8px 20px -10px var(--lib-brand); }
.lib-btn-primary:hover { background: var(--lib-brand-ink); border-color: var(--lib-brand-ink); }
.lib-btn-soft { background: var(--lib-brand-soft); border-color: transparent; color: var(--lib-brand-ink) !important; }
.lib-btn-sm { height: 36px; padding: 0 14px; font-size: 14px; border-radius: 9px; }
.lib-btn-block { width: 100%; }
.lib-btn[disabled], .lib-btn.is-locked { opacity: .65; cursor: not-allowed; }
.lib-btn.is-on { color: var(--lib-red) !important; border-color: var(--lib-red-soft); background: var(--lib-red-soft); }
.lib-badge { display: inline-flex; align-items: center; gap: 5px; height: 22px; padding: 0 9px; border-radius: 999px; font-size: 11.5px; font-weight: 700; letter-spacing: .01em; white-space: nowrap; }
.lib-badge-free { background: var(--lib-green-soft); color: var(--lib-green); }
.lib-badge-registered { background: var(--lib-brand-soft); color: var(--lib-brand-ink); }
.lib-badge-membership { background: var(--lib-accent-soft); color: #9a5b00; }
:root[data-theme="dark"] .lib-badge-membership { color: var(--lib-accent); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .lib-badge-membership { color: var(--lib-accent); } }
.lib-badge-none, .lib-badge-muted { background: var(--lib-surface-2); color: var(--lib-muted); }
.lib-badge-fmt { background: var(--lib-surface-2); color: var(--lib-ink-2); text-transform: uppercase; }

.lib-flash { margin: 18px auto 0; max-width: 1240px; padding: 0 24px; }
.lib-flash div { padding: 12px 16px; border-radius: 11px; font-weight: 550; background: var(--lib-green-soft); color: var(--lib-green); }
.lib-flash .err { background: var(--lib-red-soft); color: var(--lib-red); }
.lib-preview-bar { background: var(--lib-accent-soft); color: #7a4700; text-align: center; padding: 8px 16px; font-weight: 600; font-size: 14px; }

/* ---------- hero ---------- */
.lib-hero { position: relative; overflow: hidden; padding: 64px 0 56px; border-bottom: 1px solid var(--lib-line); background:
  radial-gradient(1200px 400px at 85% -10%, var(--lib-brand-soft), transparent 60%),
  radial-gradient(700px 300px at -5% 110%, var(--lib-accent-soft), transparent 60%); }
.lib-hero .lib-wrap { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 48px; align-items: center; }
.lib-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--lib-brand); }
[dir="rtl"] .lib-eyebrow { letter-spacing: 0; }
.lib-hero h1 { font-family: var(--lib-display); font-size: clamp(34px, 5vw, 56px); line-height: 1.05; letter-spacing: -.02em; margin: 14px 0 16px; font-weight: 650; }
[dir="rtl"] .lib-hero h1 { font-family: var(--lib-arabic); line-height: 1.35; letter-spacing: 0; }
.lib-hero h1 em { font-style: italic; color: var(--lib-brand); }
.lib-hero p.lead { font-size: 18px; color: var(--lib-ink-2); max-width: 560px; margin: 0 0 26px; }
.lib-bigsearch { display: flex; gap: 8px; background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: 16px; padding: 7px; box-shadow: var(--lib-shadow); max-width: 600px; }
.lib-bigsearch label { flex: 1; display: flex; align-items: center; gap: 10px; padding-inline-start: 12px; color: var(--lib-faint); }
.lib-bigsearch input { flex: 1; border: 0; outline: 0; background: transparent; font: inherit; font-size: 16.5px; color: var(--lib-ink); min-width: 0; height: 46px; }
.lib-hero-meta { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 22px; color: var(--lib-muted); font-size: 14px; }
.lib-hero-meta b { color: var(--lib-ink); font-size: 16px; }
.lib-shelf { position: relative; height: 330px; }
.lib-shelf .lib-cover { position: absolute; width: 168px; box-shadow: var(--lib-shadow-lg); transition: transform .3s; }
.lib-shelf .lib-cover:nth-child(1) { inset-inline-start: 4%; top: 40px; transform: rotate(-7deg); }
.lib-shelf .lib-cover:nth-child(2) { inset-inline-start: 33%; top: 0; z-index: 2; width: 186px; }
.lib-shelf .lib-cover:nth-child(3) { inset-inline-start: 58%; top: 46px; transform: rotate(6deg); }
.lib-shelf:hover .lib-cover:nth-child(1) { transform: rotate(-9deg) translateY(-4px); }
.lib-shelf:hover .lib-cover:nth-child(3) { transform: rotate(8deg) translateY(-4px); }

/* hero over an image slider / video (Platform > Library > Settings > Homepage hero);
   --ov = overlay darkness 0..0.85. Text is always light here, whatever the theme. */
.lib-hero.has-media { background: #0d0c14; border-bottom: 0; min-height: min(78vh, 620px); display: flex; align-items: center; padding: 84px 0 76px; }
.lib-hero.has-media > .lib-wrap { position: relative; z-index: 2; }
.lib-hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.lib-hero-bg img, .lib-hero-bg video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; max-width: none; }
.lib-hero-bg img { opacity: 0; transform: scale(1.06); transition: opacity 1.4s ease, transform 8s linear; }
.lib-hero-bg img.on { opacity: 1; transform: scale(1); }
.lib-hero.is-paused .lib-hero-bg img { transition: opacity .6s ease; }
.lib-hero-bg::after { content: ""; position: absolute; inset: 0; background:
  linear-gradient(to top, rgba(10, 9, 20, .55), transparent 45%),
  rgba(10, 9, 20, var(--ov, .55)); }
.lib-hero.has-media h1 { color: #fff; text-shadow: 0 2px 24px rgba(0, 0, 0, .35); }
.lib-hero.has-media h1 em { color: #c4bfff; }
.lib-hero.has-media .lib-eyebrow { color: #d4d0ff; }
.lib-hero.has-media p.lead { color: rgba(255, 255, 255, .9); }
.lib-hero.has-media .lib-hero-meta { color: rgba(255, 255, 255, .8); }
.lib-hero.has-media .lib-hero-meta b { color: #fff; }
.lib-hero.has-media .lib-bigsearch { border-color: transparent; box-shadow: 0 20px 50px -18px rgba(0, 0, 0, .6); }
.lib-hero-ctl { position: absolute; z-index: 3; inset-inline-end: 24px; bottom: 18px; display: flex; align-items: center; gap: 8px; }
.lib-hero-ctl .dot { width: 9px; height: 9px; padding: 0; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .45); cursor: pointer; transition: width .25s, background .25s; }
.lib-hero-ctl .dot.on { width: 24px; border-radius: 5px; background: #fff; }
.lib-hero-ctl .pp { width: 32px; height: 32px; margin-inline-start: 6px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .35); background: rgba(0, 0, 0, .3); color: #fff; display: grid; place-items: center; cursor: pointer; }
.lib-hero-ctl .pp:hover { background: rgba(0, 0, 0, .5); }
.lib-hero-ctl .i-play, .lib-hero.is-paused .lib-hero-ctl .i-pause { display: none; }
.lib-hero.is-paused .lib-hero-ctl .i-play { display: inline; }

/* theme switch: moon in light mode, sun in dark mode */
.lib-theme .i-sun { display: none; }
:root[data-theme="dark"] .lib-theme .i-sun { display: inline; }
:root[data-theme="dark"] .lib-theme .i-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .lib-theme .i-sun { display: inline; }
  :root:not([data-theme="light"]) .lib-theme .i-moon { display: none; }
}
.lib-theme span { display: inline-flex; }

/* ---------- sections ---------- */
.lib-section { padding: 44px 0 6px; }
.lib-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.lib-section-head h2, .lib-h2 { font-family: var(--lib-display); font-size: 27px; letter-spacing: -.015em; margin: 0; font-weight: 650; line-height: 1.2; }
[dir="rtl"] .lib-section-head h2, [dir="rtl"] .lib-h2 { font-family: var(--lib-arabic); letter-spacing: 0; }
.lib-section-head p { margin: 4px 0 0; color: var(--lib-muted); font-size: 14.5px; }
.lib-section-head a.more { font-weight: 650; font-size: 14px; white-space: nowrap; display: inline-flex; align-items: center; gap: 4px; }
[dir="rtl"] .lib-section-head a.more .lib-ic, [dir="rtl"] .lib-flip { transform: scaleX(-1); }

.lib-row { display: grid; grid-auto-flow: column; grid-auto-columns: 168px; gap: 22px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px 2px 18px; scrollbar-width: thin; }
.lib-row > * { scroll-snap-align: start; }
.lib-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 28px 22px; }

/* ---------- book card + covers ---------- */
.lib-card { display: flex; flex-direction: column; gap: 10px; color: inherit !important; text-decoration: none !important; min-width: 0; }
.lib-cover { position: relative; aspect-ratio: 2 / 3; border-radius: 6px 12px 12px 6px; overflow: hidden; background: var(--lib-surface-2); box-shadow: 0 1px 2px rgba(0,0,0,.08), 0 10px 24px -14px rgba(28,27,41,.5); }
[dir="rtl"] .lib-cover { border-radius: 12px 6px 6px 12px; }
.lib-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.lib-cover::after { content: ""; position: absolute; inset-block: 0; inset-inline-start: 0; width: 9px; background: linear-gradient(90deg, rgba(0,0,0,.18), rgba(255,255,255,.08) 60%, transparent); pointer-events: none; }
.lib-card:hover .lib-cover { transform: translateY(-3px); box-shadow: 0 2px 4px rgba(0,0,0,.08), 0 18px 34px -16px rgba(28,27,41,.55); }
.lib-card .lib-cover { transition: transform .18s, box-shadow .18s; }
.lib-cover-ph { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: space-between; padding: 38px 14px 14px 20px; color: #fff; background-image: linear-gradient(160deg, rgba(255,255,255,.18), rgba(0,0,0,.25)); }
.lib-cover-ph .t { font-family: var(--lib-display); font-weight: 650; font-size: 17px; line-height: 1.18; display: -webkit-box; -webkit-line-clamp: 5; -webkit-box-orient: vertical; overflow: hidden; }
[dir="rtl"] .lib-cover-ph .t { font-family: var(--lib-arabic); }
.lib-cover-ph .a { font-size: 12px; opacity: .85; font-weight: 600; }
.lib-cover-ph .rule { width: 34px; height: 3px; background: rgba(255,255,255,.7); border-radius: 2px; margin: 10px 0 auto; }
.lib-card-badges { position: absolute; top: 8px; inset-inline-end: 8px; display: flex; gap: 4px; z-index: 2; }
.lib-card-body { min-width: 0; }
.lib-card-title { font-weight: 650; font-size: 14.5px; line-height: 1.3; color: var(--lib-ink); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.lib-card-sub { font-size: 13px; color: var(--lib-muted); margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lib-progress { height: 4px; background: var(--lib-line); border-radius: 4px; overflow: hidden; margin-top: 7px; }
.lib-progress span { display: block; height: 100%; background: var(--lib-brand); border-radius: 4px; }

/* ---------- category tiles / chips ---------- */
.lib-cats { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.lib-cat { display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: var(--lib-radius); background: var(--lib-surface); border: 1px solid var(--lib-line); color: var(--lib-ink) !important; text-decoration: none !important; transition: border-color .15s, transform .15s; }
.lib-cat:hover { border-color: var(--c, var(--lib-brand)); transform: translateY(-2px); }
.lib-cat .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; color: var(--c, var(--lib-brand)); background: color-mix(in srgb, var(--c, var(--lib-brand)) 13%, transparent); flex: none; }
.lib-cat b { display: block; font-size: 15px; line-height: 1.25; }
.lib-cat small { color: var(--lib-muted); font-size: 13px; }
.lib-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.lib-chip { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: 999px; background: var(--lib-surface); border: 1px solid var(--lib-line); color: var(--lib-ink) !important; font-weight: 600; font-size: 14px; text-decoration: none !important; }
.lib-chip:hover { border-color: var(--lib-brand); color: var(--lib-brand) !important; }
.lib-chip small { color: var(--lib-faint); font-weight: 600; }

/* ---------- authors ---------- */
.lib-authors { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 22px; }
.lib-author { text-align: center; color: var(--lib-ink) !important; text-decoration: none !important; }
.lib-author .ph { width: 96px; height: 96px; border-radius: 50%; margin: 0 auto 10px; overflow: hidden; display: grid; place-items: center; color: #fff; font-family: var(--lib-display); font-size: 34px; font-weight: 650; box-shadow: var(--lib-shadow); }
.lib-author .ph img { width: 100%; height: 100%; object-fit: cover; }
.lib-author b { display: block; font-size: 14.5px; }
.lib-author small { color: var(--lib-muted); }

/* ---------- collections ---------- */
.lib-colls { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 18px; }
.lib-coll { display: flex; gap: 16px; align-items: center; padding: 18px; border-radius: var(--lib-radius); background: var(--lib-surface); border: 1px solid var(--lib-line); color: var(--lib-ink) !important; text-decoration: none !important; }
.lib-coll:hover { border-color: var(--lib-brand); }
.lib-coll .stack { position: relative; width: 84px; height: 92px; flex: none; }
.lib-coll .stack .lib-cover { position: absolute; width: 54px; }
.lib-coll .stack .lib-cover:nth-child(2) { inset-inline-start: 15px; top: 4px; }
.lib-coll .stack .lib-cover:nth-child(3) { inset-inline-start: 30px; top: 8px; }
.lib-coll b { font-size: 16px; display: block; }
.lib-coll small { color: var(--lib-muted); }

.lib-cta { margin: 48px 0 10px; border-radius: 22px; padding: 38px; background: linear-gradient(120deg, var(--lib-brand), #6d3fd6); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.lib-cta h2 { font-family: var(--lib-display); margin: 0 0 6px; font-size: 26px; }
.lib-cta p { margin: 0; opacity: .9; }
.lib-cta .lib-btn { background: #fff; color: var(--lib-brand-ink) !important; border-color: #fff; }

.lib-empty { text-align: center; padding: 60px 20px; color: var(--lib-muted); border: 1px dashed var(--lib-line); border-radius: var(--lib-radius); background: var(--lib-surface); }
.lib-empty .lib-ic { color: var(--lib-faint); margin-bottom: 8px; }
.lib-empty b { display: block; color: var(--lib-ink); font-size: 17px; margin-bottom: 4px; }

/* ---------- catalogue ---------- */
.lib-pagehead { padding: 34px 0 8px; }
.lib-pagehead h1 { font-family: var(--lib-display); font-size: clamp(28px, 4vw, 38px); margin: 6px 0 4px; letter-spacing: -.02em; font-weight: 650; }
[dir="rtl"] .lib-pagehead h1 { font-family: var(--lib-arabic); letter-spacing: 0; }
.lib-pagehead p { margin: 0; color: var(--lib-muted); }
.lib-crumbs { font-size: 13.5px; color: var(--lib-muted); display: flex; gap: 6px; flex-wrap: wrap; }
.lib-crumbs a { color: var(--lib-muted) !important; }
.lib-catalog { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 34px; padding: 18px 0 50px; align-items: start; }
.lib-filters { position: sticky; top: 84px; background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: var(--lib-radius); padding: 18px; max-height: calc(100vh - 100px); overflow: auto; }
.lib-filters h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--lib-muted); margin: 18px 0 8px; }
[dir="rtl"] .lib-filters h3 { letter-spacing: 0; }
.lib-filters h3:first-of-type { margin-top: 0; }
.lib-field { display: block; width: 100%; height: 40px; border-radius: 10px; border: 1px solid var(--lib-line); background: var(--lib-surface); color: var(--lib-ink); padding: 0 12px; font: inherit; font-size: 14.5px; }
textarea.lib-field { height: auto; min-height: 130px; padding: 10px 12px; resize: vertical; }
.lib-field:focus { border-color: var(--lib-brand); outline: 3px solid var(--lib-brand-soft); outline-offset: 0; }
.lib-radio { display: flex; align-items: center; gap: 9px; padding: 5px 0; font-size: 14.5px; cursor: pointer; color: var(--lib-ink-2); }
.lib-radio input { accent-color: var(--lib-brand); width: 16px; height: 16px; margin: 0; }
.lib-radio small { margin-inline-start: auto; color: var(--lib-faint); }
.lib-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.lib-toolbar .count { color: var(--lib-muted); font-size: 14.5px; }
.lib-toolbar .count b { color: var(--lib-ink); }
.lib-toolbar select { width: auto; }
.lib-active-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.lib-active-filters a { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px; border-radius: 999px; background: var(--lib-brand-soft); color: var(--lib-brand-ink) !important; font-size: 13px; font-weight: 600; text-decoration: none !important; }
.lib-filter-toggle { display: none; }
.lib-pager { display: flex; justify-content: center; gap: 6px; margin-top: 36px; flex-wrap: wrap; }
.lib-pager a, .lib-pager span { min-width: 40px; height: 40px; border-radius: 10px; display: inline-grid; place-items: center; padding: 0 12px; border: 1px solid var(--lib-line); background: var(--lib-surface); color: var(--lib-ink) !important; font-weight: 600; text-decoration: none !important; }
.lib-pager .on { background: var(--lib-brand); color: #fff !important; border-color: var(--lib-brand); }
.lib-pager .gap { border: 0; background: none; }

/* ---------- book details ---------- */
.lib-book { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 48px; padding: 30px 0 20px; align-items: start; }
.lib-book-cover .lib-cover { box-shadow: var(--lib-shadow-lg); }
.lib-book-cover .lib-cover-ph { padding-top: 24px; }
.lib-book-cover .lib-cover-ph .t { font-size: 24px; }
.lib-book h1 { font-family: var(--lib-display); font-size: clamp(28px, 4vw, 42px); line-height: 1.1; letter-spacing: -.02em; margin: 10px 0 6px; font-weight: 650; }
[dir="rtl"] .lib-book h1 { font-family: var(--lib-arabic); line-height: 1.4; letter-spacing: 0; }
.lib-book .subtitle { font-size: 19px; color: var(--lib-ink-2); margin: 0 0 12px; }
.lib-book .byline { font-size: 16px; color: var(--lib-muted); margin-bottom: 18px; }
.lib-book .byline a { font-weight: 650; }
.lib-book-badges { display: flex; flex-wrap: wrap; gap: 6px; }
.lib-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 8px; }
.lib-lock-note { display: flex; align-items: flex-start; gap: 8px; color: var(--lib-muted); font-size: 14px; margin: 6px 0 0; }
.lib-lock-note .lib-ic { margin-top: 2px; }
.lib-resume { margin-top: 14px; padding: 12px 14px; border-radius: 11px; background: var(--lib-brand-soft); color: var(--lib-brand-ink); font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 10px; }
.lib-desc { margin: 26px 0 0; font-size: 16px; color: var(--lib-ink-2); white-space: pre-line; max-width: 760px; }
.lib-meta { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 0; margin-top: 30px; border: 1px solid var(--lib-line); border-radius: var(--lib-radius); background: var(--lib-surface); overflow: hidden; }
.lib-meta div { padding: 14px 16px; border-bottom: 1px solid var(--lib-line); border-inline-end: 1px solid var(--lib-line); margin: 0 -1px -1px 0; }
.lib-meta dt { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--lib-muted); font-weight: 700; }
[dir="rtl"] .lib-meta dt { letter-spacing: 0; }
.lib-meta dd { margin: 3px 0 0; font-weight: 600; font-size: 14.5px; word-break: break-word; }
.lib-licence { margin-top: 18px; padding: 14px 16px; border-radius: var(--lib-radius-sm); background: var(--lib-surface-2); color: var(--lib-ink-2); font-size: 14px; }
.lib-sharebar { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 22px; }
.lib-toast { position: fixed; inset-inline-start: 50%; bottom: 24px; transform: translateX(-50%); background: var(--lib-ink); color: var(--lib-bg); padding: 10px 18px; border-radius: 10px; font-weight: 600; font-size: 14px; z-index: 90; opacity: 0; transition: opacity .2s; pointer-events: none; }
[dir="rtl"] .lib-toast { transform: translateX(50%); }
.lib-toast.show { opacity: 1; }

/* ---------- forms / auth ---------- */
.lib-auth { max-width: 460px; margin: 46px auto 60px; background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: 20px; padding: 34px; box-shadow: var(--lib-shadow); }
.lib-auth h1 { font-family: var(--lib-display); font-size: 30px; margin: 0 0 6px; font-weight: 650; }
[dir="rtl"] .lib-auth h1 { font-family: var(--lib-arabic); }
.lib-auth .intro { color: var(--lib-muted); margin: 0 0 22px; }
.lib-form-row { margin-bottom: 15px; }
.lib-form-row label { display: block; font-weight: 650; font-size: 14px; margin-bottom: 6px; }
.lib-form-row .hint { font-size: 12.5px; color: var(--lib-muted); margin-top: 5px; }
.lib-check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--lib-ink-2); margin: 6px 0 16px; }
.lib-check input { accent-color: var(--lib-brand); width: 17px; height: 17px; margin-top: 2px; flex: none; }
.lib-errors { background: var(--lib-red-soft); color: var(--lib-red); border-radius: 11px; padding: 12px 16px; margin-bottom: 18px; font-size: 14px; font-weight: 550; }
.lib-errors ul { margin: 0; padding-inline-start: 18px; }
.lib-ok { background: var(--lib-green-soft); color: var(--lib-green); border-radius: 11px; padding: 12px 16px; margin-bottom: 18px; font-weight: 550; }
.lib-auth .lib-or { display: flex; align-items: center; gap: 12px; margin: 20px 0 14px; color: var(--lib-muted); font-size: 13.5px; }
.lib-auth .lib-or::before, .lib-auth .lib-or::after { content: ""; flex: 1; height: 1px; background: var(--lib-line); }
.lib-auth .lib-school-signin > summary { list-style: none; cursor: pointer; text-align: center; border: 1px solid var(--lib-line); }
.lib-auth .lib-school-signin > summary::-webkit-details-marker { display: none; }
.lib-auth .lib-school-signin[open] > summary { margin-bottom: 12px; }
.lib-auth .lib-school-signin .hint { color: var(--lib-muted); font-size: 13.5px; margin: 0 0 14px; }
.lib-auth .alt { text-align: center; margin-top: 18px; font-size: 14.5px; color: var(--lib-muted); }
.lib-panel { background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: var(--lib-radius); padding: 26px; }
.lib-hp { position: absolute; inset-inline-start: -9999px; }

/* ---------- my library ---------- */
.lib-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--lib-line); margin: 18px 0 26px; overflow-x: auto; }
.lib-tabs a { padding: 12px 16px; font-weight: 650; color: var(--lib-muted) !important; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; text-decoration: none !important; }
.lib-tabs a.on { color: var(--lib-brand) !important; border-bottom-color: var(--lib-brand); }
.lib-tabs a small { background: var(--lib-surface-2); border-radius: 999px; padding: 1px 8px; margin-inline-start: 6px; font-size: 12px; }
.lib-history { border: 1px solid var(--lib-line); border-radius: var(--lib-radius); background: var(--lib-surface); }
.lib-history a.item { display: flex; align-items: center; gap: 14px; padding: 12px 16px; border-bottom: 1px solid var(--lib-line); color: var(--lib-ink) !important; text-decoration: none !important; }
.lib-history a.item:last-child { border-bottom: 0; }
.lib-history .lib-cover { width: 40px; flex: none; }
.lib-history .lib-cover-ph { padding: 4px; }
.lib-history .lib-cover-ph .t, .lib-history .lib-cover-ph .a, .lib-history .lib-cover-ph .rule { display: none; }
.lib-history .meta { margin-inline-start: auto; color: var(--lib-muted); font-size: 13px; white-space: nowrap; }

/* ---------- membership / contributor / shop ---------- */
.lib-h3 { font-size: 17px; margin: 0 0 8px; display: flex; align-items: center; gap: 8px; }
.lib-muted-p { color: var(--lib-muted); font-size: 14px; margin: 0 0 14px; }
.lib-mem-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.lib-mem-card.is-live { border-color: color-mix(in srgb, var(--lib-green) 45%, var(--lib-line)); }
.lib-mem-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.lib-mem-head b { font-size: 17px; }
.lib-mem-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; margin: 0 0 12px; }
.lib-mem-meta dt { font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--lib-muted); font-weight: 700; }
[dir="rtl"] .lib-mem-meta dt { letter-spacing: 0; }
.lib-mem-meta dd { margin: 2px 0 0; font-weight: 600; font-size: 14px; }
.lib-checklist { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 7px; font-size: 14.5px; }
.lib-checklist li { display: flex; gap: 8px; align-items: flex-start; }
.lib-checklist .lib-ic { color: var(--lib-green); margin-top: 3px; }
.lib-big-num { margin: 4px 0 10px; color: var(--lib-muted); }
.lib-big-num b { font-size: 32px; color: var(--lib-ink); font-family: var(--lib-display); }
.lib-plans { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.lib-plan { display: flex; flex-direction: column; }
.lib-plan .lib-checklist { flex: 1; }
.lib-plan-price { font-family: var(--lib-display); font-size: 26px; font-weight: 650; margin: 0 0 14px; }
.lib-plan-price span { font-size: 14px; color: var(--lib-muted); font-family: var(--lib-font); }
.lib-plan-partner { border-color: color-mix(in srgb, var(--lib-brand) 40%, var(--lib-line)); }
.lib-table { width: 100%; border-collapse: collapse; font-size: 14.5px; background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: var(--lib-radius); overflow: hidden; }
.lib-table th { text-align: start; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--lib-muted); padding: 11px 14px; border-bottom: 1px solid var(--lib-line); background: var(--lib-surface-2); }
.lib-table td { padding: 11px 14px; border-bottom: 1px solid var(--lib-line); vertical-align: middle; }
.lib-table tr:last-child td { border-bottom: 0; }
.lib-table .num { text-align: end; font-variant-numeric: tabular-nums; }
.lib-scroll { overflow-x: auto; }
.lib-stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; margin: 6px 0 26px; }
.lib-stat { background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: var(--lib-radius); padding: 16px 18px; }
.lib-stat b { display: block; font-family: var(--lib-display); font-size: 28px; line-height: 1.1; }
.lib-stat span { color: var(--lib-muted); font-size: 13px; font-weight: 600; }
.lib-timeline { border-inline-start: 2px solid var(--lib-line); padding-inline-start: 16px; margin: 10px 0 0; display: grid; gap: 14px; }
.lib-timeline .ev b { display: block; }
.lib-timeline .ev small { color: var(--lib-muted); }
.lib-timeline .ev .msg { margin-top: 6px; padding: 10px 12px; border-radius: 10px; background: var(--lib-surface-2); white-space: pre-line; font-size: 14px; }
.lib-grid2 { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; align-items: start; }
@media (max-width: 920px) { .lib-grid2 { grid-template-columns: 1fr; } }
.lib-bm-list { display: grid; gap: 8px; }
.lib-lists { position: relative; display: inline-block; margin-top: 16px; }
.lib-lists-items { max-height: 260px; overflow: auto; }
.lib-list-card { background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: var(--lib-radius); padding: 18px; margin-bottom: 18px; }
.lib-list-card header { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.lib-list-card header h3 { margin: 0; font-size: 18px; flex: 1; }
.lib-steps { list-style: none; padding: 0; margin: 20px 0 0; display: flex; gap: 6px; flex-wrap: wrap; }
.lib-steps li { display: flex; align-items: center; gap: 8px; padding: 7px 14px 7px 8px; border-radius: 999px; background: var(--lib-surface); border: 1px solid var(--lib-line); color: var(--lib-muted); font-size: 13.5px; font-weight: 600; }
.lib-steps li span { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; background: var(--lib-surface-2); font-size: 12px; }
.lib-steps li.done { color: var(--lib-green); }
.lib-steps li.done span { background: var(--lib-green-soft); }
.lib-steps li.cur { color: var(--lib-brand); border-color: var(--lib-brand); }
.lib-steps li.cur span { background: var(--lib-brand); color: #fff; }

/* ---------- footer ---------- */
.lib-footer { margin-top: 60px; border-top: 1px solid var(--lib-line); background: var(--lib-surface); padding: 40px 0 28px; font-size: 14px; color: var(--lib-muted); }
.lib-footer .cols { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 30px; }
.lib-footer h4 { color: var(--lib-ink); margin: 0 0 10px; font-size: 14px; }
.lib-footer a { color: var(--lib-muted) !important; display: block; padding: 3px 0; }
.lib-footer a:hover { color: var(--lib-brand) !important; }
.lib-footer .legal { border-top: 1px solid var(--lib-line); margin-top: 28px; padding-top: 18px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; }

/* ---------- responsive ---------- */
@media (max-width: 1280px) {
  .lib-nav a { padding: 8px 9px; }
  .lib-top-search { display: none; }
  .lib-top-right { margin-inline-start: auto; }
}
@media (max-width: 920px) {
  .lib-menu-toggle { display: inline-flex; }
  .lib-nav { position: fixed; inset: 66px 0 auto 0; flex-direction: column; align-items: stretch; background: var(--lib-surface); border-bottom: 1px solid var(--lib-line); padding: 10px 16px 16px; box-shadow: var(--lib-shadow-lg); display: none; }
  .lib-nav.open { display: flex; }
  .lib-nav a { padding: 12px; font-size: 16px; }
  .lib-top-search { display: none; }
  .lib-top-right { margin-inline-start: auto; }
  .lib-hero .lib-wrap { grid-template-columns: 1fr; }
  .lib-shelf { display: none; }
  .lib-catalog { grid-template-columns: 1fr; }
  .lib-filter-toggle { display: inline-flex; }
  .lib-filters { display: none; position: static; max-height: none; }
  .lib-filters.open { display: block; }
  .lib-book { grid-template-columns: 1fr; gap: 26px; }
  .lib-book-cover { max-width: 220px; }
  .lib-footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .lib-wrap, .lib-flash { padding: 0 16px; }
  body.lib { font-size: 15px; }
  .lib-top .lib-wrap { gap: 10px; }
  .lib-brand .txt { font-size: 17px; }
  .lib-lang > button span { display: none; }
  .lib-signin { width: 38px; height: 38px; padding: 0; justify-content: center; }
  .lib-signin span { display: none; }
  .lib-hero { padding: 38px 0 34px; }
  .lib-hero.has-media { min-height: 0; padding: 56px 0 64px; }
  .lib-hero-ctl { inset-inline-end: 16px; bottom: 14px; }
  .lib-hero p.lead { font-size: 16px; }
  .lib-bigsearch .lib-btn span { display: none; }
  .lib-row { grid-auto-columns: 132px; gap: 14px; }
  .lib-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 14px; }
  .lib-cover-ph .t { font-size: 14px; }
  .lib-section-head h2, .lib-h2 { font-size: 22px; }
  .lib-actions .lib-btn { flex: 1 1 100%; }
  .lib-auth { margin: 22px auto 40px; padding: 24px 20px; border-radius: 16px; }
  .lib-cta { padding: 26px 22px; }
  .lib-footer .cols { grid-template-columns: 1fr; }
  .lib-meta { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 430px) {
  .lib-brand .txt b { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}