/* ZNK concept-lessons — shared styles for concept pages, the hub and the glossary.
   Loaded by znk_cl_enqueue() (includes/concept-lessons.php). Scope: .znk-cl / .znk-cl-gl / .znk-clhub */

.znk-cl,.znk-cl-gl,.znk-clhub{
  --nv:#0D294B;--nv2:#1c3d69;--br:#F5B70B;--tl:#0F766E;--tlbg:#E7F1EE;--pk:#EE2B73;--pkbg:#FDE8F0;
  --mut:#5B6B84;--ink:#28374d;--hair:#E6EDF3;--card:#fff;--gd:#F7F9FC;--amb:#FEF3C7;--ambk:#92400E;
  --r:18px;--sh:0 18px 40px -26px rgba(13,41,75,.45);
  direction:rtl;font-family:Heebo,system-ui,sans-serif;color:var(--nv);max-width:900px;margin:6px auto 0;line-height:1.7;
}
.znk-cl *,.znk-cl-gl *,.znk-clhub *{box-sizing:border-box}
.znk-cl a,.znk-cl-gl a,.znk-clhub a{color:#1d4ed8}
.znk-cl h2,.znk-cl-gl h2,.znk-clhub h2{font-size:24px;font-weight:900;margin:0 0 12px;letter-spacing:-.01em;line-height:1.25;scroll-margin-top:72px}
.znk-cl h3{font-size:18px;font-weight:900;margin:0 0 8px}
.znk-cl-kicker{display:inline-block;font-size:12px;letter-spacing:.1em;font-weight:800;color:var(--tl);text-transform:uppercase;margin:0 0 6px}

/* ── Hero ─────────────────────────────────────────────────────────── */
.znk-cl-hero{background:radial-gradient(120% 140% at 90% 0,#1c3d69 0,#0D294B 55%);color:#fff;border-radius:24px;
  padding:32px 30px 28px;box-shadow:0 24px 50px -28px rgba(13,41,75,.6);position:relative;overflow:hidden}
.znk-cl-hero:after{content:"";position:absolute;inset:auto -60px -80px auto;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(245,183,11,.28),transparent 65%);pointer-events:none}
.znk-cl-crumbs{font-size:13px;color:#cfe0f5;margin:0 0 10px;display:flex;gap:6px;flex-wrap:wrap}
.znk-cl-crumbs a{color:#fff;text-decoration:none;opacity:.85}
.znk-cl-ey{font-size:12px;letter-spacing:.12em;font-weight:800;color:var(--br);text-transform:uppercase;margin:0 0 8px}
.znk-cl-hero .h1{font-size:32px;font-weight:900;letter-spacing:-.015em;margin:0 0 10px;line-height:1.2;color:#fff}
.znk-cl-hero .lead{font-size:16px;color:#cfe0f5;margin:0 0 16px;max-width:60ch}
.znk-cl-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px;position:relative;z-index:1}
.znk-cl-chip{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  color:#fff;border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:700}
.znk-cl-btns{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:1}
.znk-cl-btn{display:inline-flex;align-items:center;gap:8px;border-radius:12px;padding:12px 20px;font-size:15px;
  font-weight:800;text-decoration:none!important;cursor:pointer;border:0;line-height:1.2;transition:transform .18s ease}
.znk-cl-btn:hover{transform:translateY(-1px)}
.znk-cl-btn.p{background:var(--br);color:var(--nv)!important}
.znk-cl-btn.s{background:rgba(255,255,255,.12);color:#fff!important;border:1px solid rgba(255,255,255,.28)}
.znk-cl-btn.o{background:var(--card);color:var(--nv)!important;border:1.5px solid var(--nv)}

/* ── Generic cards / sections ─────────────────────────────────────── */
.znk-cl-block{margin-top:34px}
.znk-cl-card{background:var(--card);border:1px solid var(--hair);border-radius:var(--r);padding:20px 22px;box-shadow:var(--sh)}
.znk-cl-tldr{margin-top:22px;background:linear-gradient(180deg,#fff,#F7F9FC);border-right:5px solid var(--br)}
.znk-cl-tldr ul{margin:8px 0 0;padding:0 18px 0 0}
.znk-cl-tldr li{margin:0 0 7px;font-size:15.5px;color:var(--ink)}
.znk-cl-tldr li::marker{color:var(--tl);font-weight:900}

/* ── Exam context ─────────────────────────────────────────────────── */
.znk-cl-exam{background:var(--gd);border:1px solid var(--hair);border-radius:var(--r);padding:22px}
.znk-cl-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:12px 0 16px}
.znk-cl-fact{background:var(--card);border:1px solid var(--hair);border-radius:14px;padding:14px 14px 12px}
.znk-cl-fact .v{font-size:28px;font-weight:900;color:var(--tl);line-height:1.1;letter-spacing:-.02em}
.znk-cl-fact .l{font-size:13.5px;font-weight:800;margin-top:4px}
.znk-cl-fact .n{font-size:12.5px;color:var(--mut);line-height:1.45;margin-top:4px}
.znk-cl-exam-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:12px}
.znk-cl-where{background:var(--card);border:1px solid var(--hair);border-radius:14px;padding:16px 18px}
.znk-cl-where ul{margin:6px 0 0;padding:0 16px 0 0}
.znk-cl-where li{font-size:14.5px;color:var(--ink);margin:0 0 6px}
.znk-cl-where b{color:var(--nv)}
.znk-cl-est{background:var(--amb);border:1px solid #FCD34D;border-radius:14px;padding:16px 18px}
.znk-cl-est .v{font-size:36px;font-weight:900;color:var(--ambk);line-height:1;letter-spacing:-.02em}
.znk-cl-est p{margin:6px 0 0;font-size:14.5px;color:#4b3609}
.znk-cl-est small{display:block;margin-top:8px;font-size:12px;color:#7c5a11;font-weight:700}
.znk-cl-est .bd{list-style:none;margin:12px 0 0;padding:10px 0 0;border-top:1px dashed #E0B94A}
.znk-cl-est .bd li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:#4b3609;padding:3px 0}
.znk-cl-est .bd li b{color:var(--ambk);white-space:nowrap}
.znk-cl-bank{margin-top:12px;background:var(--card);border:1px solid var(--hair);border-radius:14px;padding:14px 18px;font-size:14px;color:var(--ink);display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center}
.znk-cl-bank b{color:var(--tl)}
.znk-cl-src{font-size:12.5px;color:var(--mut);margin:10px 0 0}

/* ── Sticky chapter nav ───────────────────────────────────────────── */
.znk-cl-nav{position:sticky;top:0;z-index:5;display:flex;flex-wrap:wrap;gap:8px;padding:12px 0;margin:26px 0 0;
  background:linear-gradient(#fff 70%,transparent)}
.znk-cl-nav a{background:var(--card);border:1px solid var(--hair);border-radius:999px;padding:7px 14px;font-size:13.5px;
  font-weight:700;color:var(--nv);text-decoration:none;white-space:nowrap}
.znk-cl-nav a.q{border-color:var(--tl);color:var(--tl)}

/* ── Hero video ───────────────────────────────────────────────────── */
.znk-cl-herovid{margin-top:22px;display:grid;grid-template-columns:1fr 1.1fr;gap:20px;align-items:center;background:linear-gradient(135deg,#fff 0,#FDE8F0 140%);border-right:5px solid var(--pk)}
.znk-cl-herovid .txt h2{font-size:21px}
.znk-cl-herovid .txt p{margin:0;font-size:14.5px;color:var(--ink)}
.znk-cl-herovid .znk-cl-kicker{color:var(--pk)}
.znk-cl-herovid .znk-cl-vid{margin:0}

/* ── Video cards (lite embed) ─────────────────────────────────────── */
.znk-cl-vids{margin-top:24px;background:linear-gradient(135deg,#FFF7ED,#FDE8F0);border:1px solid #FBCFE8;border-radius:16px;padding:16px 18px 14px}
.znk-cl-vids h3{font-size:15px;color:#9D174D;margin:0 0 10px}
.znk-cl-vids-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.znk-cl-vid{margin:0;background:var(--card);border:1px solid var(--hair);border-radius:14px;overflow:hidden;box-shadow:var(--sh)}
.znk-cl-vid-play{display:block;position:relative;width:100%;aspect-ratio:16/9;border:0;padding:0;cursor:pointer;background:#000;overflow:hidden}
.znk-cl-vid-play img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease;opacity:.92}
.znk-cl-vid-play:hover img{transform:scale(1.04);opacity:1}
.znk-cl-vid-play .pb{position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%);width:58px;height:58px;border-radius:50%;background:var(--pk);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px -8px rgba(238,43,115,.8);transition:transform .2s}
.znk-cl-vid-play .pb svg{margin-left:-3px}
.znk-cl-vid-play:hover .pb{transform:translate(-50%,-50%) scale(1.08)}
.znk-cl-vid-play .tag{position:absolute;top:10px;right:10px;background:var(--br);color:var(--nv);font-size:12px;font-weight:900;border-radius:999px;padding:3px 10px}
.znk-cl-vid iframe{display:block;width:100%;aspect-ratio:16/9;border:0}
.znk-cl-vid figcaption{padding:10px 12px;font-size:13.5px;display:flex;justify-content:space-between;gap:8px;align-items:baseline;flex-wrap:wrap}
.znk-cl-vid figcaption b{color:var(--nv)}
.znk-cl-vid figcaption a{color:var(--pk);font-weight:800;text-decoration:none;font-size:12.5px;white-space:nowrap}

/* ── Book bites (drills from the Zinuk course book + solution video) ── */
.znk-cl-bite{margin-top:24px;border:1px solid #C7D2FE;border-radius:18px;overflow:hidden;background:var(--card);box-shadow:var(--sh)}
.znk-cl-bite-head{background:linear-gradient(135deg,#1E1B4B,#312E81 55%,#4C1D95);color:#fff;padding:18px 20px 16px;position:relative}
.znk-cl-bite-head:after{content:"📘";position:absolute;left:18px;top:14px;font-size:34px;opacity:.35}
.znk-cl-bite-head .znk-cl-kicker{background:rgba(255,255,255,.14);color:#FDE68A;margin-bottom:8px}
.znk-cl-bite-head h3{margin:0 0 6px;font-size:19px;color:#fff}
.znk-cl-bite-head p{margin:0;font-size:14.5px;color:#E0E7FF;line-height:1.55}
.znk-cl-bite-hint{margin-top:6px!important;font-size:13px!important;color:#C7D2FE!important}
.znk-cl-bite-body{padding:14px 16px 6px;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(240px,.85fr);gap:16px;align-items:start}
@media(max-width:720px){.znk-cl-bite-body{grid-template-columns:1fr}}
.znk-cl-bite-qs{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.znk-cl-bite-qs li{background:var(--gd);border:1.5px solid var(--hair);border-radius:12px;transition:border-color .2s,background .2s}
.znk-cl-bite-qs li.open{border-color:#6366F1;background:#EEF2FF}
.znk-cl-bite-q{width:100%;font:inherit;color:var(--nv);background:none;border:0;padding:10px 12px;display:flex;align-items:center;gap:10px;cursor:pointer;text-align:right}
.znk-cl-bite-q:focus-visible{outline:3px solid rgba(99,102,241,.4);outline-offset:1px;border-radius:12px}
.znk-cl-bite-q .n{font-weight:900;color:#fff;background:#4F46E5;font-size:12px;width:22px;height:22px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;flex:none}
.znk-cl-bite-q .m{flex:1;text-align:left;font-size:17px;unicode-bidi:isolate;min-width:0}
.znk-cl-bite-q .cta{flex:none;font-size:12.5px;font-weight:800;color:#4F46E5;white-space:nowrap}
.znk-cl-bite-qs li.open .cta{color:#6B7280}
.znk-cl-bite-a{margin:0 12px 10px 12px;padding:8px 12px;border-radius:10px;background:#ECFDF5;color:#065F46;display:flex;align-items:center;gap:10px;font-size:17px;animation:znk-pop .25s ease}
.znk-cl-bite-a[hidden]{display:none}
.znk-cl-bite-a .lbl{font-size:13px;font-weight:900}
.znk-cl-bite-a .m{unicode-bidi:isolate;text-align:left}
@keyframes znk-pop{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.znk-cl-bite-vid{background:linear-gradient(135deg,#FFF7ED,#FDE8F0);border:1px solid #FBCFE8;border-radius:14px;padding:12px}
.znk-cl-bite-vidlbl{margin:0 0 8px;font-size:13.5px;font-weight:800;color:#9D174D}
.znk-cl-bite-vid .znk-cl-vid{margin:0}
.znk-cl-bite-foot{margin:0;padding:10px 16px;font-size:12.5px;color:var(--mut);border-top:1px dashed var(--hair)}

/* ── Chapters & sections ──────────────────────────────────────────── */
.znk-cl-ch{--acc:var(--tl);--accbg:var(--tlbg);margin-top:36px;padding-top:26px;border-top:1px solid var(--hair)}
.znk-cl-ch:nth-of-type(5n+2){--acc:#B45309;--accbg:#FEF3C7}
.znk-cl-ch:nth-of-type(5n+3){--acc:#BE185D;--accbg:#FDE8F0}
.znk-cl-ch:nth-of-type(5n+4){--acc:#1D4ED8;--accbg:#DBEAFE}
.znk-cl-ch:nth-of-type(5n+5){--acc:#6D28D9;--accbg:#EDE9FE}
.znk-cl-ch-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--acc);color:#fff;font-weight:900;font-size:15px;margin-left:10px;vertical-align:middle;box-shadow:0 8px 18px -8px var(--acc)}
.znk-cl-ch .znk-cl-sec h4{color:var(--acc)}
.znk-cl-ch .znk-cl-sum{background:var(--accbg);border-color:transparent}
.znk-cl-ch .znk-cl-sum h3{color:var(--acc)}
.znk-cl-ch-blurb{font-size:15.5px;color:var(--mut);margin:0 0 18px;max-width:64ch}
.znk-cl-sec{margin-top:22px}
.znk-cl-sec h3{font-size:20px;font-weight:900;margin:0 0 10px;scroll-margin-top:72px}
.znk-cl-sec h4{font-size:17px;font-weight:800;margin:20px 0 6px;color:var(--tl)}
.znk-cl-sec p{margin:0 0 11px;font-size:15.5px;color:var(--ink)}
.znk-cl-sec table{border-collapse:collapse;margin:12px 0}
.znk-cl-sec td,.znk-cl-sec th{border:1px solid var(--hair);padding:6px 10px;font-size:14px}
.znk-cl .hw-eq{margin:10px 0 14px;overflow-x:auto;padding:4px 0}
.znk-cl .hw-fig{max-width:100%;height:auto}
.znk-cl .katex,.znk-cl-gl .katex{direction:ltr;unicode-bidi:isolate}
.znk-cl .katex-display{margin:0;text-align:right}
.znk-cl .katex-display>.katex{text-align:right}
.znk-cl-sum{background:var(--tlbg);border:1px solid #c9e2dc;border-radius:16px;padding:16px 20px;margin-top:20px}
.znk-cl-sum h3{font-size:16px;color:var(--tl);margin:0 0 6px}
.znk-cl-sum p{font-size:14.5px;margin:0 0 6px}
.znk-cl-sum h4{font-size:15px;margin:10px 0 2px}

/* ── Figures ──────────────────────────────────────────────────────── */
.znk-cl-fig{margin:18px 0 22px;background:var(--card);border:1px solid var(--hair);border-radius:16px;padding:16px 18px 12px;box-shadow:var(--sh)}
.znk-cl-fig svg{display:block;width:100%;height:auto;max-width:640px;margin:0 auto}
.znk-cl-fig figcaption{font-size:13.5px;color:var(--mut);margin-top:10px;line-height:1.55}
.znk-cl-fig table{width:100%;border-collapse:separate;border-spacing:0;font-size:15px}
.znk-cl-fig th{background:var(--nv);color:#fff;padding:8px 10px;font-weight:800;font-size:13.5px}
.znk-cl-fig th:first-child{border-radius:0 10px 0 0}.znk-cl-fig th:last-child{border-radius:10px 0 0 0}
.znk-cl-fig td{padding:7px 10px;border-bottom:1px solid var(--hair);text-align:center;font-weight:700;font-variant-numeric:tabular-nums;direction:ltr}
.znk-cl-fig tr:nth-child(even) td{background:var(--gd)}
/* spec-table: a comparison table whose cells are Hebrew prose, not numbers. The default
   .znk-cl-fig td is forced LTR + centred for the fraction tables; here we want RTL text and a
   navy-on-light row header. */
.znk-cl-fig table.znk-cl-tbl-rtl td{direction:rtl;text-align:right;font-weight:600;font-variant-numeric:normal}
.znk-cl-fig table.znk-cl-tbl-rtl tbody th{background:var(--gd);color:var(--nv);border-radius:0;border-bottom:1px solid var(--hair);text-align:right;font-size:14px;white-space:nowrap}
.znk-cl-fig table.znk-cl-tbl-rtl tbody tr:nth-child(even) th{background:#EEF2F7}
.znk-cl-flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;counter-reset:s}
.znk-cl-flow li{background:var(--gd);border:1px solid var(--hair);border-radius:14px;padding:12px 12px 10px;position:relative;counter-increment:s}
.znk-cl-flow li:before{content:counter(s);position:absolute;top:-10px;right:10px;background:var(--br);color:var(--nv);font-weight:900;font-size:12px;border-radius:999px;width:22px;height:22px;display:flex;align-items:center;justify-content:center}
.znk-cl-flow .t{font-weight:900;font-size:17px;direction:ltr;text-align:right;unicode-bidi:isolate;margin:4px 0 2px}
.znk-cl-flow .x{font-size:13px;color:var(--mut);line-height:1.45}

/* ── Pitfalls ─────────────────────────────────────────────────────── */
.znk-cl-pits{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px;margin-top:14px}
.znk-cl-pit{background:var(--card);border:1px solid var(--hair);border-radius:16px;padding:16px 18px;box-shadow:var(--sh)}
.znk-cl-pit h3{font-size:16px;margin:0 0 10px}
.znk-cl-pit .w,.znk-cl-pit .r{display:flex;gap:8px;align-items:flex-start;border-radius:10px;padding:8px 10px;font-size:14.5px;margin:0 0 6px;direction:ltr;text-align:left;unicode-bidi:isolate;font-weight:700}
.znk-cl-pit .w{background:#FEF2F2;color:#991B1B}
.znk-cl-pit .r{background:#ECFDF5;color:#065F46}
.znk-cl-pit .w:before{content:"✕";font-weight:900}
.znk-cl-pit .r:before{content:"✓";font-weight:900}
.znk-cl-pit p{margin:8px 0 0;font-size:14px;color:var(--ink)}

/* ── Sample questions (interactive) ───────────────────────────────── */
#samples .znk-cl-kicker{color:var(--pk)}
.znk-cl-sq{background:var(--card);border:1px solid var(--hair);border-right:5px solid var(--tl);border-radius:16px;margin:0 0 12px;padding:18px 20px;box-shadow:var(--sh);transition:border-color .25s}
.znk-cl-sq.right{border-right-color:#059669}
.znk-cl-sq.wrong{border-right-color:#DC2626}
.znk-cl-sq-top{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px}
.znk-cl-sq-n{font-weight:900;color:var(--tl);font-size:13px;background:var(--tlbg);border-radius:999px;padding:3px 10px}
.znk-cl-diff{font-size:12px;font-weight:800;border-radius:999px;padding:3px 10px;background:var(--tlbg);color:var(--tl)}
.znk-cl-diff.m{background:var(--amb);color:var(--ambk)}
.znk-cl-diff.h{background:var(--pkbg);color:#9D174D}
.znk-cl-sq .stem{font-size:16px;font-weight:700;color:var(--nv);margin:0 0 12px}
.znk-cl-sq ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(140px,100%),1fr));gap:8px}
.znk-cl-sq ol li{display:block;min-width:0}
.znk-cl-sq .opt{width:100%;text-align:right;font:inherit;font-size:15px;color:var(--nv);background:var(--gd);border:1.5px solid var(--hair);border-radius:12px;padding:10px 12px;display:flex;gap:8px;align-items:center;cursor:pointer;transition:transform .15s,border-color .15s,background .15s;position:relative}
.znk-cl-sq .opt:hover:not(:disabled){border-color:var(--tl);background:#fff;transform:translateY(-1px)}
.znk-cl-sq .opt:focus-visible{outline:3px solid rgba(15,118,110,.35);outline-offset:1px}
.znk-cl-sq .opt:disabled{cursor:default}
.znk-cl-sq .opt .k{font-weight:900;color:#fff;background:var(--nv);font-size:12px;width:22px;height:22px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;flex:none}
.znk-cl-sq .opt{min-width:0}
.znk-cl-sq .opt .t{flex:1;min-width:0;overflow-wrap:anywhere}
.znk-cl-sq .opt .ic{font-weight:900;font-size:15px;flex:none;width:18px}
.znk-cl-sq li.ok .opt{border-color:#34D399;background:#ECFDF5;color:#065F46}
.znk-cl-sq li.ok .opt .k{background:#059669}
.znk-cl-sq li.ok .opt .ic:before{content:"✓";color:#059669}
.znk-cl-sq li.bad .opt{border-color:#F87171;background:#FEF2F2;color:#991B1B;animation:znk-shake .35s}
.znk-cl-sq li.bad .opt .k{background:#DC2626}
.znk-cl-sq li.bad .opt .ic:before{content:"✕";color:#DC2626}
.znk-cl-sq li.sel.ok .opt{box-shadow:0 0 0 3px rgba(5,150,105,.25)}
@keyframes znk-shake{20%{transform:translateX(-4px)}40%{transform:translateX(4px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}
.znk-cl-fb{margin:10px 0 0;font-size:14.5px;font-weight:800;min-height:0}
.znk-cl-fb:empty{display:none}
.znk-cl-fb.good{color:#065F46}
.znk-cl-fb.miss{color:#991B1B}
.znk-cl-score{margin-top:6px;background:linear-gradient(135deg,#FEF3C7,#FDE8F0);border:1px solid #FCD34D;border-radius:16px;padding:16px 18px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px}
.znk-cl-score .s{font-size:17px;font-weight:900;color:var(--nv)}
.znk-cl-sq details{margin-top:12px}
.znk-cl-sq summary{cursor:pointer;font-weight:800;color:var(--tl);list-style:none;display:inline-flex;align-items:center;gap:6px;user-select:none}
.znk-cl-sq summary::-webkit-details-marker{display:none}
.znk-cl-sq summary:before{content:"▸";transition:transform .2s}
.znk-cl-sq details[open] summary:before{transform:rotate(90deg)}
.znk-cl-sq .ans{margin-top:10px;background:var(--gd);border-radius:12px;padding:12px 14px;font-size:14.5px;color:var(--ink)}
.znk-cl-sq .ans .badge{display:inline-block;background:#ECFDF5;color:#065F46;border-radius:999px;padding:3px 12px;font-size:13px;font-weight:900;margin-bottom:8px}
.znk-cl-sq .ans p{margin:0 0 8px}
.znk-cl-sq .ans ol,.znk-cl-sq .ans ul{display:block;padding-right:18px;list-style:decimal}
.znk-cl-sq .ans ol li,.znk-cl-sq .ans ul li{display:list-item;border:0;padding:2px 0;background:none}

/* ── Practice block (recurring) ───────────────────────────────────── */
.znk-cl-prac{background:linear-gradient(135deg,#0d294b 0%,#155e75 60%,#0f766e 120%);color:#fff;border-radius:22px;padding:26px 26px 22px;margin-top:34px;position:relative;overflow:hidden}
.znk-cl-prac:before{content:"";position:absolute;inset:-40% auto auto -10%;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(56,178,172,.35),transparent 65%)}
.znk-cl-prac h2{color:#fff;font-size:22px;margin:0 0 4px}
.znk-cl-prac .lead{color:#cfe0f5;font-size:14.5px;margin:0 0 16px;max-width:60ch}
.znk-cl-prac-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;position:relative;z-index:1}
.znk-cl-prac-card{display:block;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:14px 16px;color:#fff!important;text-decoration:none!important;transition:background .18s}
.znk-cl-prac-card:hover{background:rgba(255,255,255,.18)}
.znk-cl-prac-card b{display:block;font-size:15.5px;margin-bottom:3px}
.znk-cl-prac-card span{font-size:13px;color:#cfe0f5;line-height:1.45}
.znk-cl-prac-card.hi{background:var(--br);color:var(--nv)!important;border-color:var(--br)}
.znk-cl-prac-card.hi span{color:#4b3609}
.znk-cl-prac small{display:block;margin-top:12px;font-size:12px;color:#9fb8d6}

/* ── FAQ ──────────────────────────────────────────────────────────── */
.znk-cl-faq{background:linear-gradient(160deg,#EFF6FF,#EDE9FE);border-radius:22px;padding:22px 22px 14px;border:1px solid #DDD6FE}
.znk-cl-faq .znk-cl-kicker{color:#6D28D9}
.znk-cl-faq details{background:var(--card);border:1px solid #E9E4FB;border-right:4px solid #8B5CF6;border-radius:14px;padding:0 18px;margin:0 0 8px;transition:box-shadow .2s}
.znk-cl-faq details[open]{box-shadow:0 14px 30px -20px rgba(109,40,217,.6);border-right-color:#6D28D9}
.znk-cl-faq summary{cursor:pointer;font-weight:800;font-size:15.5px;padding:14px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:10px}
.znk-cl-faq summary::-webkit-details-marker{display:none}
.znk-cl-faq summary:after{content:"+";flex:none;width:26px;height:26px;border-radius:50%;background:#EDE9FE;color:#6D28D9;display:inline-flex;align-items:center;justify-content:center;font-size:18px;font-weight:900;transition:transform .2s}
.znk-cl-faq details[open] summary:after{content:"–";background:#6D28D9;color:#fff}
.znk-cl-faq .a{padding:0 0 14px;font-size:14.5px;color:var(--ink)}

/* ── Related / prereqs ────────────────────────────────────────────── */
.znk-cl-rel{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin-top:14px}
.znk-cl-rel-g{--g:var(--tl);--gbg:var(--tlbg);background:var(--card);border:1px solid var(--hair);border-top:4px solid var(--g);border-radius:16px;padding:16px 18px;box-shadow:var(--sh)}
.znk-cl-rel-g.practice{--g:var(--pk);--gbg:var(--pkbg)}
.znk-cl-rel-g.lesson{--g:#B45309;--gbg:#FEF3C7}
.znk-cl-rel-g.guide{--g:#1D4ED8;--gbg:#DBEAFE}
.znk-cl-rel-g.course{--g:#6D28D9;--gbg:#EDE9FE}
.znk-cl-rel-g h3{font-size:13.5px;color:var(--g);letter-spacing:.04em;margin:0 0 10px;display:flex;align-items:center;gap:8px}
.znk-cl-rel-g h3:before{content:"";width:26px;height:26px;border-radius:8px;background:var(--gbg);flex:none;display:inline-flex;align-items:center;justify-content:center;font-size:13px}
.znk-cl-rel-g.glossary h3:before{content:"📖"}.znk-cl-rel-g.practice h3:before{content:"✏️"}.znk-cl-rel-g.lesson h3:before{content:"▶"}.znk-cl-rel-g.guide h3:before{content:"🧭"}.znk-cl-rel-g.course h3:before{content:"🎓"}
.znk-cl-rel-g ul{list-style:none;margin:0;padding:0}
.znk-cl-rel-g li{margin:0 0 8px;font-size:14.5px;padding-right:12px;position:relative}
.znk-cl-rel-g li:before{content:"";position:absolute;right:0;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--g)}
.znk-cl-rel-g li a{font-weight:800;text-decoration:none;color:var(--nv)}
.znk-cl-rel-g li a:hover{color:var(--g)}
.znk-cl-rel-g li small{display:block;color:var(--mut);font-size:12.5px;line-height:1.45}
.znk-cl-path{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px;font-size:14px;background:var(--gd);border-radius:14px;padding:12px 14px}
.znk-cl-path .st{background:var(--card);border:1.5px solid #BFDBFE;color:#1D4ED8;border-radius:999px;padding:6px 14px;font-weight:700;text-decoration:none}
.znk-cl-path a.st:hover{background:#DBEAFE}
.znk-cl-path span.st{color:var(--mut);border-color:var(--hair)}
.znk-cl-path .st.now{background:var(--br);color:var(--nv);border-color:var(--br);box-shadow:0 8px 18px -10px rgba(245,183,11,.9)}
.znk-cl-path .ar{color:#93C5FD;font-weight:900}

/* ── CTA + footer ─────────────────────────────────────────────────── */
.znk-cl-cta{background:linear-gradient(120deg,#0D294B 0%,#1E3A8A 45%,#6D28D9 100%);color:#fff;border-radius:22px;padding:28px 26px;margin-top:34px;position:relative;overflow:hidden;display:grid;grid-template-columns:1.4fr 1fr;gap:22px;align-items:center}
.znk-cl-cta:before{content:"";position:absolute;inset:auto auto -90px -60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(245,183,11,.45),transparent 65%);pointer-events:none}
.znk-cl-cta:after{content:"";position:absolute;inset:-70px -40px auto auto;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(238,43,115,.45),transparent 65%);pointer-events:none}
.znk-cl-cta .txt{position:relative;z-index:1}
.znk-cl-cta .znk-cl-kicker{color:var(--br)}
.znk-cl-cta h2{font-size:23px;color:#fff;margin:0 0 8px}
.znk-cl-cta p{color:#dbe7f8;font-size:15px;margin:0 0 16px;max-width:60ch}
.znk-cl-cta p a{color:#fff;text-decoration-color:var(--br);text-underline-offset:3px}
.znk-cl-cta-pts{list-style:none;margin:0;padding:0;display:grid;gap:8px;position:relative;z-index:1}
.znk-cl-cta-pts li{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:10px 14px;display:flex;flex-direction:column;gap:1px;backdrop-filter:blur(4px)}
.znk-cl-cta-pts li:before{content:"✓";color:var(--br);font-weight:900;float:right;margin-left:8px}
.znk-cl-cta-pts b{font-size:14.5px}
.znk-cl-cta-pts span{font-size:12.5px;color:#dbe7f8}
.znk-cl-foot{font-size:12.5px;color:var(--mut);margin:18px 0 0;background:var(--gd);border-radius:14px;padding:12px 16px;display:flex;flex-wrap:wrap;gap:6px 18px}
.znk-cl-foot span{display:inline-flex;align-items:center;gap:6px}
.znk-cl-foot span:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--br)}
.znk-cl-foot span:nth-child(2):before{background:var(--pk)}
.znk-cl-foot span:nth-child(3):before{background:var(--tl)}

/* ── Hub ──────────────────────────────────────────────────────────── */
.znk-clhub{max-width:960px;margin:6px auto 0}
.znk-clhub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:22px}
.znk-clhub-card{display:block;background:var(--card);border:1px solid var(--hair);border-radius:18px;padding:18px 20px;text-decoration:none!important;color:var(--nv)!important;box-shadow:var(--sh);position:relative;transition:transform .18s}
.znk-clhub-card:hover{transform:translateY(-2px)}
.znk-clhub-card b{display:block;font-size:18px;font-weight:900;margin-bottom:4px}
.znk-clhub-card p{margin:0 0 10px;font-size:14px;color:var(--ink);line-height:1.5}
.znk-clhub-card .meta{display:flex;gap:6px;flex-wrap:wrap}
.znk-clhub-card .meta span{font-size:12px;font-weight:700;color:var(--tl);background:var(--tlbg);border-radius:999px;padding:3px 10px}
.znk-clhub-card .draft{position:absolute;top:12px;left:12px;background:var(--amb);color:var(--ambk);font-size:11px;font-weight:900;border-radius:999px;padding:3px 9px}
.znk-clhub-card.gl{background:linear-gradient(135deg,#fff,var(--tlbg))}
.znk-clhub-empty{margin-top:18px;color:var(--mut);font-size:14px}

/* ── Glossary ─────────────────────────────────────────────────────── */
.znk-cl-gl-tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:20px 0 6px;position:sticky;top:0;z-index:5;background:linear-gradient(#fff 75%,transparent);padding:10px 0}
.znk-cl-gl-tools input{flex:1 1 220px;border:1.5px solid var(--hair);border-radius:12px;padding:10px 14px;font:inherit;font-size:15px;direction:rtl}
.znk-cl-gl-tools input:focus{outline:none;border-color:var(--tl)}
.znk-cl-gl-tools a{background:var(--card);border:1px solid var(--hair);border-radius:999px;padding:7px 14px;font-size:13.5px;font-weight:700;color:var(--nv);text-decoration:none}
.znk-cl-gl-cat{margin-top:30px}
.znk-cl-gl-cat h2{display:flex;align-items:center;gap:10px}
.znk-cl-gl-cat h2 span{font-size:13px;font-weight:700;color:var(--mut);background:var(--gd);border-radius:999px;padding:3px 10px}
.znk-cl-gl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.znk-cl-term{background:var(--card);border:1px solid var(--hair);border-radius:16px;padding:16px 18px;scroll-margin-top:80px;box-shadow:var(--sh)}
.znk-cl-term:target{border-color:var(--br);box-shadow:0 0 0 3px rgba(245,183,11,.35)}
.znk-cl-term h3{font-size:17px;font-weight:900;margin:0 0 6px;display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.znk-cl-term h3 a{color:var(--mut);font-size:12px;text-decoration:none;font-weight:700;opacity:0}
.znk-cl-term:hover h3 a{opacity:1}
.znk-cl-term p{margin:0;font-size:14.5px;color:var(--ink)}
.znk-cl-term.hide{display:none}
.znk-cl-gl-none{display:none;color:var(--mut);margin-top:14px}
.znk-cl-gl.searching .znk-cl-gl-none.show{display:block}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width:640px){
  .znk-cl-hero{padding:24px 18px 22px;border-radius:18px}
  .znk-cl-hero .h1{font-size:25px}
  .znk-cl-exam-grid{grid-template-columns:1fr}
  .znk-cl-card,.znk-cl-exam{padding:16px}
  .znk-cl h2{font-size:21px}
  .znk-cl-nav{flex-wrap:wrap;gap:6px;padding:10px 0}
  .znk-cl-nav a{padding:6px 11px;font-size:12.5px}
  .znk-cl-fig svg{max-width:100%;height:auto;overflow:hidden}
  .znk-cl-fig{overflow-x:auto}
  .znk-cl-fig table{font-size:13px}
  .znk-cl-fig table.znk-cl-tbl-rtl tbody th{white-space:normal}
  .znk-cl-sq ol{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .znk-cl-sec p .katex,.znk-cl-sec li .katex{display:inline-block;max-width:100%;overflow-x:auto;overflow-y:hidden;padding:.45em 0;vertical-align:-.45em}
  .znk-cl-prac,.znk-cl-cta{padding:20px 18px}
  .znk-cl-cta,.znk-cl-herovid{grid-template-columns:1fr}
  .znk-cl-faq{padding:16px 14px 10px}
}
@media (prefers-reduced-motion:reduce){.znk-cl *,.znk-clhub *{transition:none!important}}

/* ── Zinuk mascots (pages whose editorial JSON sets brand.mascots; see znk_cl_mascot) ── */
.znk-cl-mc{display:block;height:auto;max-width:none;pointer-events:none;user-select:none}
.znk-cl-hero--mc{padding-left:180px}
.znk-cl-mc.hero{position:absolute;left:22px;bottom:0;width:130px;z-index:1;filter:drop-shadow(0 12px 18px rgba(0,0,0,.35));animation:znkClRise .6s ease-out both}
.znk-cl-mc.pt{width:92px;margin:12px auto 0 0}
.znk-cl-mc.av{float:left;width:76px;height:76px;border-radius:50%;object-fit:cover;object-position:50% 6%;background:var(--pkbg);border:3px solid #fff;box-shadow:var(--sh);margin:0 14px 6px 0}
.znk-cl-faq .znk-cl-mc.av{background:#EDE9FE}
.znk-cl-mc.av ~ .znk-cl-pits,.znk-cl-mc.av ~ .znk-cl-ch-blurb,.znk-cl-mc.av ~ details{clear:both}
.znk-cl-cta--mc{padding-left:170px}
.znk-cl-mc.cta{position:absolute;left:18px;bottom:0;width:132px;z-index:1;filter:drop-shadow(0 12px 18px rgba(0,0,0,.35))}
@keyframes znkClRise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media (max-width:640px){
  .znk-cl-hero--mc{padding-left:18px}
  .znk-cl-mc.hero,.znk-cl-mc.pt{display:none}
  .znk-cl-cta--mc{padding-left:18px}
  .znk-cl-mc.cta{position:relative;left:auto;bottom:auto;justify-self:end;width:96px;margin-bottom:-20px}
  .znk-cl-mc.av{width:60px;height:60px;margin:0 10px 4px 0}
}
@media (prefers-reduced-motion:reduce){.znk-cl-mc{animation:none!important}}