/* EPIC Technical Library. Sits on top of the site stylesheet and uses its tokens only. */

.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ic{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.mono-s{font-family:var(--mono);text-transform:uppercase;letter-spacing:.13em;font-size:11px;color:var(--muted);line-height:1.5}

/* breadcrumb */
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-family:var(--mono);text-transform:uppercase;letter-spacing:.13em;font-size:11px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--slate-deep);text-decoration:none;border-bottom:1px solid transparent}
.crumbs a:hover{border-color:currentColor}
.crumbs span[aria-hidden]{color:var(--slate-light)}
.crumbs.on-dark,.crumbs.on-dark a{color:var(--d-caption)}
.crumbs.on-dark a{color:#fff}

/* access badges */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 10px 4px 8px;font-size:12.5px;font-weight:600;line-height:1.2;white-space:nowrap;border:1px solid}
.badge .ic{width:14px;height:14px}
.badge.open{color:var(--olive-text);background:rgba(111,143,28,.08);border-color:rgba(111,143,28,.38)}
.badge.registered{color:var(--slate-deep);background:rgba(53,80,95,.06);border-color:rgba(53,80,95,.34)}
.badge.request{color:#fff;background:var(--ink);border-color:var(--ink)}
a.badge.act{text-decoration:none;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
a.badge.open.act:hover{background:var(--olive-text);border-color:var(--olive-text);color:#fff}
a.badge.registered.act:hover{background:var(--slate-deep);border-color:var(--slate-deep);color:#fff}
a.badge.request.act:hover{background:var(--slate-deep);border-color:var(--slate-deep)}
a.badge.act:focus-visible{outline:3px solid var(--lime);outline-offset:2px}

/* index hero */
.lib-ph{min-height:min(56vh,520px)}
.lib-ph h1{max-width:18ch}

/* the three levels */
.levels{background:var(--white);display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,44px);padding-top:clamp(40px,5vw,64px);padding-bottom:clamp(36px,4.5vw,56px)}
.lv{display:flex;gap:16px;align-items:flex-start}
.lv h3{font-size:19px;font-weight:600;letter-spacing:-.02em;line-height:1.2}
.lv p{font-size:15.5px;line-height:1.55;margin:6px 0 8px}
.lv-i{flex:none;width:44px;height:44px;border-radius:50%;display:grid;place-items:center}
.lv-i .ic{width:22px;height:22px}
.lv-i.open{background:rgba(111,143,28,.12);color:var(--olive-text)}
.lv-i.registered{background:rgba(53,80,95,.1);color:var(--slate-deep)}
.lv-i.request{background:var(--ink);color:#fff}
.lv-note{grid-column:1/-1;display:flex;gap:10px;align-items:center;border-top:1px solid var(--rule);padding-top:20px;font-size:15px;color:var(--body)}
.lv-note .ic{color:var(--slate-deep)}
@media (width<=900px){.levels{grid-template-columns:1fr;gap:22px}}

/* toolbar */
.toolbar{position:sticky;top:64px;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.tb{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding-top:14px;padding-bottom:12px}
.srch{flex:1 1 280px;max-width:420px;position:relative;display:flex;flex-direction:row;align-items:center;gap:0;margin:0}
.srch .ic{position:absolute;left:14px;color:var(--slate)}
.srch input{padding-left:42px;background:var(--paper)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{font:inherit;font-size:14px;font-weight:500;color:var(--slate-deep);background:transparent;border:1px solid var(--rule);border-radius:999px;padding:9px 16px;cursor:pointer;line-height:1;transition:background .2s,border-color .2s,color .2s}
.chip:hover{border-color:var(--slate-light)}
.chip.on{background:var(--slate-deep);border-color:var(--slate-deep);color:#fff}
.chip:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.tb-n{margin-left:auto}
.jump{display:flex;gap:26px;overflow-x:auto;scrollbar-width:none;padding-bottom:12px;white-space:nowrap}
.jump::-webkit-scrollbar{display:none}
.jump a{font-size:14px;font-weight:500;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent;padding-bottom:4px}
.jump a:hover,.jump a.on{color:var(--ink);border-color:var(--slate-deep)}
@media (width<=820px){.toolbar{position:static}.tb{gap:12px}.srch{max-width:none;flex-basis:100%}.tb-n{display:none}}

/* collections */
.coll{padding-top:clamp(52px,6vw,84px);scroll-margin-top:170px}
.coll:last-of-type{padding-bottom:clamp(40px,5vw,72px)}
.coll-h{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;border-bottom:1px solid var(--rule);padding-bottom:20px;margin-bottom:30px}
.coll-h p{max-width:62ch;margin-top:12px}
.coll-n{white-space:nowrap}
.coll[hidden]{display:none}
@media (width<=700px){.coll-h{flex-direction:column;align-items:flex-start;gap:8px}}

.shelf4{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px clamp(24px,2.6vw,40px)}
@media (width<=1100px){.shelf4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (width<=680px){.shelf4{grid-template-columns:1fr;gap:28px}}

.card{display:grid;grid-template-columns:124px minmax(0,1fr);column-gap:20px;align-items:start}
.card[hidden]{display:none}
.card-b{display:flex;flex-direction:column;min-width:0;align-self:stretch}
.card-link{text-decoration:none;color:inherit;display:block}
.cv{display:block;aspect-ratio:210/297;border-radius:3px;overflow:hidden;background:#dfe5e8;box-shadow:0 6px 16px rgba(20,32,42,.16);transition:transform .3s,box-shadow .3s}
.cv img{width:100%;height:100%;object-fit:cover;display:block}
/* landscape covers: whole cover, centred in a portrait frame so every card lines up */
.cv.land{display:flex;align-items:center;background:#092a4c}
.cv.land img{height:auto;object-fit:contain}
.card:hover .cv{transform:translateY(-3px);box-shadow:0 12px 24px rgba(20,32,42,.22)}
.card-link:focus-visible{outline:3px solid var(--lime);outline-offset:3px;border-radius:2px}
.card-c{display:block;font-family:var(--mono);text-transform:uppercase;letter-spacing:.11em;font-size:10.5px;color:var(--olive-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-t{font-family:var(--disp);font-size:17px;font-weight:600;letter-spacing:-.02em;line-height:1.25;margin-top:5px;color:var(--ink)}
.card:hover .card-t{color:var(--slate-deep)}
.card-d{font-size:14.5px;line-height:1.5;margin-top:6px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-m{margin-top:auto;padding-top:10px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px}
.card-m .mono-s{white-space:nowrap}
@media (width<=680px){.card{grid-template-columns:96px minmax(0,1fr);column-gap:16px}.card-t{font-size:16px}.card-d{font-size:14px}}

.empty{padding-top:40px;padding-bottom:60px;font-size:17px}

/* closing band */
.lib-end{background:var(--white);border-top:1px solid var(--rule);padding-top:clamp(56px,6vw,88px);padding-bottom:clamp(56px,6vw,88px)}
.owner{border-left:3px solid var(--slate-deep);padding-left:24px}
.owner p{margin-top:6px}
.owner b{color:var(--ink);font-weight:600}
.lib-end.slim{padding-top:36px;padding-bottom:40px}
.endrow{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:18px}
.endrow p{font-size:17px}
.endrow b{color:var(--ink)}

/* ------------------------------------------------------------------ document page */
.dhero{background:var(--paper);padding-top:clamp(28px,3.5vw,44px);padding-bottom:clamp(44px,5vw,72px)}
.dh{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,5.5vw,84px);align-items:start}
.dh-cv{max-width:420px}
.dh-cv img{width:100%;height:auto;border-radius:4px;box-shadow:0 24px 48px rgba(20,32,42,.22),0 2px 6px rgba(20,32,42,.12)}
.kick{font-family:var(--mono);text-transform:uppercase;letter-spacing:.13em;font-size:12px;color:var(--olive-text);font-weight:500}
.dh-info h1{font-size:clamp(34px,4.2vw,58px);font-weight:700;line-height:1.03;margin-top:14px;max-width:16ch}
.stand{font-size:clamp(17px,1.35vw,20px);line-height:1.55;margin-top:18px;max-width:52ch;color:var(--body)}
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px;margin-top:30px;border-top:1px solid var(--rule)}
.facts div{padding:13px 0;border-bottom:1px solid var(--rule);display:flex;flex-direction:column;gap:4px}
.facts dt{font-family:var(--mono);text-transform:uppercase;letter-spacing:.13em;font-size:10.5px;color:var(--muted)}
.facts dd{font-size:15.5px;color:var(--ink);font-weight:500}
.acts{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px;margin-top:30px}
.acts [hidden],.panel [hidden]{display:none!important}
.cta.dl,.ghost{display:inline-flex;align-items:center;gap:10px}
@media (width<=900px){.dh{grid-template-columns:1fr}.dh-cv{max-width:260px}.facts{grid-template-columns:1fr 1fr}}
@media (width<=420px){.facts{grid-template-columns:1fr}}

.dbody{background:var(--white);padding-top:clamp(52px,6vw,88px);padding-bottom:clamp(40px,5vw,72px)}
.dbody.has-aside{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,400px);gap:clamp(36px,5vw,80px);align-items:start}
.dmain{max-width:820px;min-width:0}
.blk+.blk{margin-top:clamp(48px,5.5vw,72px)}
.blk .h-sub{margin-bottom:18px}
.blk .prose p{max-width:64ch}
.blk .prose a{color:var(--slate-deep);font-weight:600}
.fcap{font-size:14.5px;color:var(--muted);margin-top:12px;max-width:70ch}

.stats4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:3px solid var(--ink)}
.st{padding:18px 18px 4px 0}
.st+.st{padding-left:18px;border-left:1px solid var(--rule)}
.st b{display:block;font-family:var(--disp);font-weight:700;letter-spacing:-.03em;font-size:clamp(28px,2.8vw,38px);line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.st span{display:block;font-size:14px;line-height:1.45;color:var(--muted);margin-top:10px}
@media (width<=700px){.stats4{grid-template-columns:1fr 1fr}.st:nth-child(3){padding-left:0;border-left:0}.st:nth-child(n+3){border-top:1px solid var(--rule);margin-top:12px}}

.rec{border-top:1px solid var(--rule)}
.rec div{display:grid;grid-template-columns:170px minmax(0,1fr);gap:20px;padding:14px 0;border-bottom:1px solid var(--rule)}
.rec dt{font-family:var(--mono);text-transform:uppercase;letter-spacing:.13em;font-size:11px;color:var(--muted);padding-top:4px}
.rec dd{font-size:16px;color:var(--ink)}
@media (width<=560px){.rec div{grid-template-columns:1fr;gap:4px}}

.tscroll{overflow-x:auto;margin-top:14px;-webkit-overflow-scrolling:touch}
.tbl{width:100%;border-collapse:collapse;font-size:15px;min-width:540px}
.tbl th,.tbl td{padding:12px 14px;border-bottom:1px solid var(--rule);text-align:right;font-variant-numeric:tabular-nums}
.tbl thead th{font-family:var(--mono);text-transform:uppercase;letter-spacing:.11em;font-size:10.5px;font-weight:500;color:var(--muted);border-bottom:2px solid var(--ink)}
.tbl th[scope=row],.tbl thead th:first-child{text-align:left;font-weight:500;color:var(--ink)}
.tbl td b{color:var(--ink)}
.tbl.left th,.tbl.left td{text-align:left}
.tbl.left td{color:var(--body)}
.tbl a{color:var(--slate-deep)}
.tbl tr.here th,.tbl tr.here td{background:var(--paper)}
.tbl tr.here th{box-shadow:inset 3px 0 0 var(--slate-deep)}

/* chronology */
.chr-h{display:flex;flex-direction:column;gap:4px;font-size:21px;font-weight:600;letter-spacing:-.02em;margin:34px 0 16px}
.chrono{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px 18px}
.chrono li:first-child{grid-column:span 2}
.chrono li:first-child figure{display:flex;flex-direction:column;height:100%}
.chrono li:first-child .ph43{aspect-ratio:auto;flex:1;min-height:0;position:relative}
.chrono li:first-child .ph43 img{position:absolute;inset:0}
.ph43{display:block;aspect-ratio:4/3;overflow:hidden;border-radius:4px;background:#dfe5e8}
.ph43 img{width:100%;height:100%;object-fit:cover}
.chrono figcaption{font-size:14px;line-height:1.5;color:var(--body);margin-top:10px}
.chr-d{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--slate-deep);margin-bottom:4px}
.chr-d b{font-weight:500;color:var(--ink);background:var(--paper);border:1px solid var(--rule);border-radius:3px;padding:1px 5px}
.chr-d em{font-style:normal;text-transform:uppercase;letter-spacing:.13em;font-size:10.5px;color:var(--muted)}
@media (width<=980px){.chrono{grid-template-columns:repeat(2,minmax(0,1fr))}.chrono li:first-child .ph43{aspect-ratio:8/3;flex:none}}
@media (width<=560px){.chrono{gap:18px 12px}.chrono figcaption{font-size:13px}}

/* volume 2 books */
.books{display:grid;grid-template-columns:1fr;gap:18px}
.book{border:1px solid var(--rule);border-top:3px solid var(--slate-deep);border-radius:0 0 var(--radius) var(--radius);padding:22px 24px 24px;background:var(--white)}
.book:nth-child(2){border-top-color:var(--slate)}
.book:nth-child(3){border-top-color:var(--olive)}
.book h3{font-size:22px;font-weight:600;letter-spacing:-.02em;margin-top:6px}
.book>p{margin-top:8px;font-size:15.5px;max-width:64ch}
.book>p.mono-s{font-size:11px;margin-top:0}
.tick{list-style:none;margin-top:14px;display:grid;gap:10px}
.tick li{font-size:15px;color:var(--body);padding-left:18px;position:relative;line-height:1.55}
.tick li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:2px;background:var(--slate-deep)}
.tick b{color:var(--ink);font-weight:600}
.stages{margin:14px 0 12px;padding-left:0;list-style:none;counter-reset:s;display:grid;grid-template-columns:1fr 1fr;gap:6px 24px}
.stages li{counter-increment:s;font-size:15px;color:var(--ink);display:flex;gap:10px;padding:6px 0;border-bottom:1px solid var(--rule)}
.stages li::before{content:counter(s,decimal-leading-zero);font-family:var(--mono);font-size:12px;color:var(--muted);padding-top:2px}
.forms{list-style:none;margin-top:14px;display:grid;grid-template-columns:1fr 1fr;gap:6px 24px}
.forms li{font-size:15px;color:var(--ink);display:flex;gap:10px;padding:6px 0;border-bottom:1px solid var(--rule)}
.forms b{font-family:var(--mono);font-weight:500;font-size:12px;color:var(--olive-text);padding-top:2px;min-width:12px}
@media (width<=620px){.stages,.forms{grid-template-columns:1fr}}

/* volume 1 contents */
.toc{list-style:none;border-top:1px solid var(--rule)}
.toc li{display:grid;grid-template-columns:78px minmax(0,1fr);gap:16px;padding:14px 0;border-bottom:1px solid var(--rule)}
.toc-n{font-family:var(--mono);font-size:13px;color:var(--olive-text);padding-top:3px}
.toc b{display:block;font-family:var(--disp);font-size:18px;font-weight:600;letter-spacing:-.02em;color:var(--ink)}
.toc span:not(.toc-n){display:block;font-size:15px;color:var(--body);margin-top:3px}

/* access panel */
.daside{position:sticky;top:88px;scroll-margin-top:96px}
.panel{background:var(--paper);border:1px solid var(--rule);border-top:3px solid var(--ink);border-radius:0 0 var(--radius) var(--radius);padding:24px 24px 20px}
.p-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px}
.p-head h2{font-size:21px;font-weight:600;letter-spacing:-.02em;line-height:1.2}
.p-head p{font-size:14.5px;line-height:1.5;margin-top:6px}
.gate{display:grid;gap:14px}
.gate label em{font-style:normal;color:var(--muted);font-weight:400}
.gate input,.gate select,.gate textarea{background:var(--white)}
.gate .chk{flex-direction:row;align-items:flex-start;gap:10px;font-weight:400;color:var(--body);font-size:13.5px;line-height:1.45}
.gate .chk input{width:18px;height:18px;margin-top:2px;flex:none;accent-color:var(--slate-deep)}
.gate .chk a{color:var(--slate-deep)}
.gate .cta{width:100%;text-align:center;padding:16px 24px}
.gate.busy{opacity:.6;pointer-events:none}
.gate .bad{border-color:#b4432f;outline:2px solid rgba(180,67,47,.25)}
.gate .note{margin:0;font-size:14px}
.gate .note.err{color:#b4432f}
.p-done h3,.p-known h3{font-size:22px;font-weight:600;letter-spacing:-.02em}
.p-done p,.p-known p{margin-top:10px;font-size:15.5px}
.p-done a,.p-known a:not(.cta){color:var(--slate-deep);font-weight:600}
.p-known .cta{margin-top:18px}
.p-done[hidden],.p-known[hidden],.gate[hidden]{display:none}
.p-fine{margin-top:16px;font-size:12.5px}
.p-fine a{color:var(--slate-deep)}
@media (width<=1024px){.dbody.has-aside{grid-template-columns:1fr}.daside{position:static}}

.wide{background:var(--white);padding-bottom:clamp(52px,6vw,88px)}
.wide .h-sub{margin-bottom:12px}
.related{background:var(--paper);padding-top:clamp(48px,5vw,76px);padding-bottom:clamp(48px,5vw,76px)}
.related .h-sub{margin-bottom:28px}
.related .shelf4{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px clamp(20px,2.2vw,32px)}
.related .card{grid-template-columns:76px minmax(0,1fr);column-gap:14px}
.related .card-t{font-size:15.5px}
.related .card-d{display:none}
.related .card-m{margin-top:10px;padding-top:0}
.related .card-m .mono-s{display:none}
@media (width<=1100px){.related .shelf4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (width<=560px){.related .shelf4{grid-template-columns:1fr}.related .card{grid-template-columns:72px minmax(0,1fr)}}

/* preview-only notice for pages built in the rollout */
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:var(--radius);font-size:14px;z-index:90;box-shadow:0 10px 30px rgba(20,32,42,.35);max-width:calc(100% - 32px)}

.panel.dlc .cta{width:100%;justify-content:center;padding:16px 24px;margin-top:4px}
.dl-meta{list-style:none;margin-top:18px;border-top:1px solid var(--rule)}
.dl-meta li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--rule);font-size:14.5px;color:var(--ink)}
.dl-meta li span{font-family:var(--mono);text-transform:uppercase;letter-spacing:.13em;font-size:10.5px;color:var(--muted);padding-top:3px}
.panel .more{margin-top:18px;font-size:15px}
.chrono.few li:first-child{grid-column:auto}
.chrono.few li:first-child .ph43{aspect-ratio:4/3;flex:none}
.chrono.few li:first-child .ph43 img{position:static}
.terms-h{font-size:clamp(34px,4.2vw,58px);font-weight:700;line-height:1.03;margin-top:14px}
.dhero .stand{margin-bottom:0}
.dmain.terms{max-width:760px}
.chrono.small{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}
.chrono.small li:first-child{grid-column:auto}
.chrono.small li:first-child .ph43{aspect-ratio:4/3;flex:none}
.chrono.small li:first-child .ph43 img{position:static}
.chrono.small li{max-width:260px}

/* Arabic editions */
.lang-tg{display:inline-flex;border:1px solid var(--rule);border-radius:999px;padding:2px;background:var(--white);white-space:nowrap}
.lang-tg button{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;line-height:1;color:var(--muted);background:none;border:0;border-radius:999px;padding:5px 9px;cursor:pointer;transition:background .15s,color .15s}
.lang-tg button:hover{color:var(--ink)}
.lang-tg button[aria-pressed="true"]{background:var(--slate-deep);color:#fff}
.lang-tg button:focus-visible{outline:2px solid var(--lime);outline-offset:1px}
.related .card-m .lang-tg{display:inline-flex}
.panel .dl-ar{width:100%;justify-content:center;margin-top:10px}
.ghost.dl .ic{width:16px;height:16px}