/* Pishgam Knowledge V4. Fully scoped to .pr-kn4. Do NOT append old pr-knowledge styles. */
.pr-kn4{--kn4-blue:#003399;--kn4-accent:#ffcc00;--kn4-line:#dfe7f5;--kn4-soft:#f6f9ff;--kn4-muted:#75839a;--kn4-ink:#10203b;direction:rtl;padding:clamp(26px,4vw,54px) 0 75px;background:linear-gradient(180deg,#f8faff 0,#fff 390px)}
.pr-kn4,.pr-kn4 *, .pr-kn4 *::before,.pr-kn4 *::after{box-sizing:border-box}
.pr-kn4 [hidden]{display:none!important}
.pr-kn4 a{text-decoration:none}
.pr-kn4 button,.pr-kn4 input{font:inherit}
.pr-kn4 :is(a,button,input):focus-visible{outline:3px solid #8eb2fb;outline-offset:3px}
.pr-kn4>.container{width:min(100% - 28px,1280px);margin-inline:auto}
.pr-kn4__header{position:relative;isolation:isolate;display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,370px);align-items:center;gap:clamp(20px,3.8vw,60px);min-width:0;padding:clamp(23px,3.1vw,40px);margin-bottom:28px;overflow:hidden;border:1px solid var(--kn4-line);border-radius:24px;background:linear-gradient(110deg,#fff 0%,#fff 40%,#f2f6ff 100%);box-shadow:0 18px 45px rgba(12,43,99,.055)}
.pr-kn4__header::before{content:"";position:absolute;inset-block-start:-125px;inset-inline-start:-140px;width:300px;height:300px;z-index:-1;pointer-events:none;border-radius:50%;background:radial-gradient(circle,rgba(0,51,153,.075),transparent 72%)}
.pr-kn4__header::after{content:"";position:absolute;inset-block-start:0;inset-inline-end:clamp(24px,3vw,44px);width:76px;height:3px;border-radius:0 0 6px 6px;background:linear-gradient(90deg,var(--kn4-accent),var(--kn4-blue))}
.pr-kn4__header-copy{min-width:0;max-width:720px}
.pr-kn4__eyebrow{display:block;color:var(--kn4-blue);font-size:.76rem;font-weight:750}
.pr-kn4__header-copy .pr-kn4__eyebrow{display:inline-flex;align-items:center;gap:9px}
.pr-kn4__header-copy .pr-kn4__eyebrow::before{content:"";width:21px;height:2px;flex:none;border-radius:2px;background:var(--kn4-accent)}
.pr-kn4__header h1{margin:12px 0 12px}
.pr-kn4__header p{margin:0;color:var(--kn4-muted);line-height:1.95;max-width:590px;font-size:.9rem}
.pr-kn4__search{width:100%;min-width:0;padding:17px;border:1px solid #e2eaf9;border-radius:18px;background:rgba(255,255,255,.88);box-shadow:0 8px 30px rgba(12,43,99,.035)}
.pr-kn4__search-label{display:block;color:#526785;font-size:.78rem;font-weight:700;margin-bottom:10px}
.pr-kn4__search-field{position:relative;display:flex;align-items:center;gap:10px;background:#f8faff;border:1px solid #d6e2f6;border-radius:12px;padding:0 13px;color:var(--kn4-blue);transition:border-color .2s ease,box-shadow .2s ease}
.pr-kn4__search-field:focus-within{border-color:#83a8f7;box-shadow:0 0 0 4px rgba(0,51,153,.07)}
.pr-kn4__search-field input{appearance:none;border:0!important;outline:none!important;box-shadow:none!important;background:transparent!important;min-width:0;flex:1;width:100%;height:49px;font-size:.84rem;color:var(--kn4-ink);direction:rtl;text-align:right}
.pr-kn4__search-field input::placeholder{color:#9aa7bc}
.pr-kn4__search-field button{display:grid;place-items:center;border:0;background:#eef3fc;color:var(--kn4-blue);border-radius:8px;width:25px;height:25px;cursor:pointer}
.pr-kn4-featured{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);height:248px;min-width:0;margin-bottom:34px;overflow:hidden;border:1px solid var(--kn4-line);border-radius:21px;background:#fff;box-shadow:0 16px 40px rgba(12,43,99,.055)}
.pr-kn4-featured__copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;min-width:0;padding:18px clamp(19px,3vw,35px)}
.pr-kn4-featured__badge{display:inline-flex;gap:7px;align-items:center;padding:5px 9px;border-radius:8px;background:#edf3ff;color:var(--kn4-blue);font-size:.72rem;font-weight:800}
.pr-kn4-featured__badge i{font-size:.65rem;color:#d2a300}
.pr-kn4-featured h2{margin:9px 0 7px;line-height:1.55;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;font-size:clamp(1.05rem,1.45vw,1.45rem)}
.pr-kn4-featured h2 a,.pr-kn4-card h3 a{color:var(--kn4-ink)}
.pr-kn4-featured__copy>p{color:var(--kn4-muted);font-size:.81rem;line-height:1.9;margin:0 0 11px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.pr-kn4-featured__foot{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.pr-kn4-featured__cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 15px;color:#fff!important;background:var(--kn4-blue);border-radius:11px;font-size:.77rem;font-weight:750;transition:background .2s}
.pr-kn4-featured__cta:hover{background:#1760e5}
.pr-kn4__date{color:#8592a8;font-size:.7rem;white-space:nowrap}
.pr-kn4-featured__media{min-width:0;min-height:0;overflow:hidden;background:#eaf2fe}
.pr-kn4-featured__media img{width:100%;height:100%;display:block;object-fit:cover}
.pr-kn4__placeholder{width:100%;height:100%;min-height:110px;display:grid;place-items:center;background:linear-gradient(145deg,#e8f0ff,#f8faff);color:#90acd9;font-size:2.5rem}
/* RTL grid: first child is right (articles), second child is left (sidebar). */
.pr-kn4__layout{display:grid;grid-template-columns:minmax(0,1fr) 232px;align-items:start;gap:26px}
.pr-kn4__main{min-width:0}
.pr-kn4__section-heading{padding-bottom:12px;margin-bottom:20px;border-bottom:1px solid var(--kn4-line)}
.pr-kn4__section-heading h2{margin:5px 0 0}
.pr-kn4__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}
.pr-kn4-card{min-width:0;display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--kn4-line);border-radius:17px;box-shadow:0 8px 25px rgba(12,42,92,.04);transition:transform .2s,box-shadow .2s}
@media(hover:hover) and (pointer:fine){.pr-kn4-card:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(12,42,92,.09)}}
.pr-kn4-card__media{display:block;aspect-ratio:16/9;overflow:hidden;background:#edf3fd}
.pr-kn4-card__media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
@media(hover:hover) and (pointer:fine){.pr-kn4-card:hover img{transform:scale(1.035)}}
.pr-kn4-card__body{padding:13px;display:flex;flex-direction:column;flex:1;min-width:0}
.pr-kn4-card__category{color:var(--kn4-blue);font-size:.7rem;font-weight:700}
.pr-kn4-card h3{font-size:1rem;line-height:1.85;margin:6px 0 8px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.pr-kn4-card__body>p{color:var(--kn4-muted);font-size:.76rem;line-height:1.9;margin:0 0 12px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.pr-kn4-card__footer{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:1px solid #edf1f8;margin-top:auto;padding-top:10px}
.pr-kn4-card__arrow{display:grid;place-items:center;color:var(--kn4-blue);background:#edf3ff;border-radius:9px;width:31px;height:31px}
.pr-kn4__sidebar{position:sticky;top:var(--pr-kn4-sticky-offset,140px);z-index:7;min-width:0}
.pr-kn4__sidebar-inner{position:relative;background:#fff;border:1px solid var(--kn4-line);border-radius:18px;padding:14px 11px;box-shadow:0 10px 30px rgba(13,45,107,.06)}
.pr-kn4__sidebar-head{display:flex;align-items:center;gap:9px;padding:0 4px 13px;margin-bottom:9px;border-bottom:1px solid #edf1f8;font-size:.85rem;font-weight:800;color:var(--kn4-ink)}
.pr-kn4__sidebar-head>i{width:32px;height:32px;display:grid;place-items:center;background:#eaf1ff;color:var(--kn4-blue);border-radius:9px}
.pr-kn4__category-list{display:grid;gap:4px}
.pr-kn4__category{display:flex;align-items:center;justify-content:space-between;gap:9px;min-height:43px;padding:10px 12px;border-radius:10px;color:#61718c;font-size:.84rem;transition:background .15s,color .15s}
.pr-kn4__category i{font-size:.7rem;opacity:.6}
.pr-kn4__category:hover{background:#f3f7ff;color:var(--kn4-blue)}
.pr-kn4__category.is-active{background:#eaf1ff;color:var(--kn4-blue);font-weight:800}
.pr-kn4 .pr-kn4__mobile-trigger{display:none}
.pr-kn4__more-wrap{display:flex;justify-content:center;padding-top:22px}
.pr-kn4__more{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid #cbdaf4;border-radius:11px;background:#fff;color:var(--kn4-blue);padding:10px 21px;font-size:.82rem;cursor:pointer}
.pr-kn4__more:hover{background:#edf3ff}
.pr-kn4__empty{color:var(--kn4-muted);border:1px dashed #cbd9ee;background:#fafcff;border-radius:14px;padding:25px;text-align:center;font-size:.85rem}
@media(max-width:1199.98px){.pr-kn4__layout{grid-template-columns:minmax(0,1fr) 212px;gap:18px}.pr-kn4__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:991.98px){
 .pr-kn4{--pr-kn4-sticky-offset:98px}
 .pr-kn4__layout{grid-template-columns:minmax(0,1fr);gap:18px}
 .pr-kn4__sidebar{grid-row:1;position:sticky;top:var(--pr-kn4-sticky-offset);z-index:25}
 .pr-kn4__main{grid-row:2}
 .pr-kn4__sidebar-inner{padding:5px;border-radius:13px;box-shadow:0 10px 27px rgba(12,42,99,.08)}
 .pr-kn4__sidebar-head{display:none}
 .pr-kn4 .pr-kn4__mobile-trigger{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;min-height:42px;padding:8px 12px;background:#fff;border:0;border-radius:10px;color:var(--kn4-blue);font-size:.83rem;font-weight:750;text-align:right;cursor:pointer}
 .pr-kn4__mobile-trigger>span{display:flex;align-items:center;gap:9px}
 .pr-kn4__mobile-trigger>i{transition:transform .2s}
 .pr-kn4.is-menu-open .pr-kn4__mobile-trigger>i{transform:rotate(180deg)}
 .pr-kn4__category-list{display:none;position:absolute;top:calc(100% + 6px);inset-inline:0;border:1px solid var(--kn4-line);background:#fff;border-radius:12px;padding:6px;max-height:min(60vh,340px);overflow:auto;box-shadow:0 18px 38px rgba(12,42,99,.15);z-index:2}
 .pr-kn4.is-menu-open .pr-kn4__category-list{display:grid}
 .pr-kn4__header{grid-template-columns:minmax(0,1fr);gap:18px}
 .pr-kn4__search{max-width:none}
}
@media(max-width:640px){
 .pr-kn4{padding:24px 0 54px;--pr-kn4-sticky-offset:98px}
 .pr-kn4>.container{width:calc(100% - 24px)}
 .pr-kn4__header{gap:17px;padding:21px 17px;margin-bottom:18px;border-radius:18px}
 .pr-kn4__header h1{margin:8px 0}
 .pr-kn4__header p{font-size:.79rem;line-height:1.8}
 .pr-kn4__search{padding:12px;border-radius:13px}
 .pr-kn4__search-label{font-size:.75rem;margin-bottom:7px}
 .pr-kn4__search-field input{height:42px;font-size:.8rem}
 .pr-kn4-featured{height:207px;grid-template-columns:minmax(0,1fr) 112px;border-radius:15px;margin-bottom:23px}
 .pr-kn4-featured__copy{padding:11px 13px 11px 7px}
 .pr-kn4-featured__badge{padding:4px 7px;font-size:.64rem}
 .pr-kn4-featured h2{font-size:.96rem;line-height:1.55;margin:7px 0}
 .pr-kn4-featured__copy>p{font-size:.69rem;line-height:1.65;-webkit-line-clamp:2;margin-bottom:8px}
 .pr-kn4-featured__cta{padding:7px 10px;font-size:.7rem}
 .pr-kn4-featured__foot .pr-kn4__date{display:none}
 .pr-kn4__grid{grid-template-columns:1fr;gap:13px}
 .pr-kn4-card__media{aspect-ratio:16/8.5}
}
@media(max-width:370px){.pr-kn4__header{padding:17px 13px}.pr-kn4-featured{grid-template-columns:minmax(0,1fr) 89px}.pr-kn4-featured h2{font-size:.88rem}}
@media(prefers-reduced-motion:reduce){.pr-kn4 *{transition:none!important}}