@font-face{font-family:IRANSans;src:url('../public/fa/dwd/assets/fonts/iransans/woff/IRANSansWeb.woff') format('woff');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:IRANSans;src:url('../public/fa/dwd/assets/fonts/iransans/woff/IRANSansWeb_Medium.woff') format('woff');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:IRANSans;src:url('../public/fa/dwd/assets/fonts/iransans/woff/IRANSansWeb_Bold.woff') format('woff');font-weight:700;font-style:normal;font-display:swap}
:root{--brand:#1d3a8a;--ink:#231d1f;--muted:#656a75;--line:#e4e6eb;--soft:#f7f8fa;--font:IRANSans,Tahoma,sans-serif}
*{box-sizing:border-box}html{scroll-padding-top:90px}body{margin:0;background:#fff;color:var(--ink);font-family:var(--font);font-size:14px;line-height:1.9}input,select,button,textarea{font:inherit;color:inherit}h1,h2,h3,h4,h5,h6{font-family:var(--font);font-weight:700}a{color:inherit;text-decoration:none}a,button{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand);outline-offset:4px}a:hover{color:var(--brand)}.wrap{width:min(1120px,calc(100% - 64px));margin-inline:auto}.top{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:20px;white-space:nowrap}.brand-name{font-size:27px;font-weight:700;color:var(--brand);line-height:1.5}.brand-caption{border-right:1px solid var(--line);padding-right:20px;font-size:12px;color:var(--muted)}.header-nav{display:flex;gap:28px;align-items:center;font-size:12px}.button{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);border:1px solid var(--brand);border-radius:4px;padding:9px 18px;color:#fff;min-height:42px;font-size:12px;font-weight:500;white-space:nowrap}.button:hover{background:#142d70;color:#fff}.intro{padding:36px 0 28px;border-bottom:1px solid var(--line)}.intro-title{display:flex;gap:24px;align-items:baseline;margin-bottom:20px}.intro h1{font-size:25px;line-height:1.6;margin:0;flex-shrink:0}.intro p{margin:0;font-size:13px;color:var(--muted)}.search-form{display:flex;align-items:stretch;gap:8px;max-width:100%}.search-input{display:flex;align-items:center;gap:12px;flex:1;min-width:0;border:1px solid #d3d7df;border-radius:4px;padding:0 14px;background:#fff}.search-input:focus-within{border-color:var(--brand)}.search-input svg{flex-shrink:0;color:var(--muted)}.search-input input{border:0;background:none;min-width:0;width:100%;height:46px;outline:none;font-size:13px}.search-input input:focus-visible{outline:none}.search-input input::placeholder{color:#777e89}.category-select{display:flex;min-width:200px}.category-select select{width:100%;border:1px solid #d3d7df;border-radius:4px;background:#fff;padding:8px 12px;font-size:12px}.landing-search .category-select{display:none}.search-form>.button{min-width:94px}.listing-layout{padding-top:28px}.listing-layout.with-sidebar{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:52px;align-items:start}.results{min-width:0;scroll-margin-top:92px}.results-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}.results-head>div{display:flex;align-items:baseline;gap:14px}.results-head h2{font-size:17px;margin:0;line-height:1.7}.results-count{font-size:11px;color:var(--muted);white-space:nowrap}.clear-filter{font-size:11px;color:var(--brand)}.search-context{font-size:12px;color:var(--muted);margin:16px 0 0;overflow-wrap:anywhere}.article-list,.related-list,.category-nav ul,.start-here ul{list-style:none;margin:0;padding:0}.article-list>li{border-bottom:1px solid var(--line)}.article-row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0}.row-main{min-width:0}.article-row h3{font-size:15px;line-height:1.8;margin:0 0 4px;font-weight:500;overflow-wrap:anywhere}.article-row p{font-size:12px;color:var(--muted);margin:0 0 6px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.row-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:10px;color:var(--muted)}.row-arrow{font-size:19px;flex-shrink:0;color:#9097a4;font-family:var(--font)}.article-row:hover h3,.article-row:hover .row-arrow{color:var(--brand)}.listing-aside{padding-right:24px;border-right:1px solid var(--line)}.side-block{margin:0 0 28px}.side-block h2{font-size:12px;color:var(--muted);font-weight:500;margin:0 0 12px}.category-nav a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:7px 10px;margin-inline:-10px;font-size:12px;border-radius:3px}.category-nav a.active{background:var(--soft);font-weight:500;color:var(--brand)}.category-nav a:hover{background:var(--soft)}.category-nav a>span{font-size:10px;color:var(--muted)}.start-here{padding-top:20px;border-top:1px solid var(--line)}.start-here li+li{margin-top:9px}.start-here a{font-size:12px;line-height:1.9;display:block}.support-note{padding-top:20px;border-top:1px solid var(--line)}.support-note h2{color:var(--ink);font-weight:500}.support-note p{font-size:12px;color:var(--muted);margin:0 0 10px}.text-link{font-size:12px;color:var(--brand);font-weight:500}.text-link:hover{text-decoration:underline;text-underline-offset:4px}.pages{display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap;margin:24px 0}.pages a{min-width:34px;min-height:34px;padding:4px 11px;border:1px solid var(--line);border-radius:3px;text-align:center;font-size:12px}.pages [aria-current]{color:#fff;background:var(--brand);border-color:var(--brand)}.list-support{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 0;border-top:1px solid var(--line);margin-top:28px;color:var(--muted);font-size:12px}.empty{padding:40px 0;color:var(--muted)}.empty h1,.empty h2,.empty h3{color:var(--ink);font-size:20px;margin-top:0}.crumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:11px;color:var(--muted);padding:24px 0}.reading{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:64px;align-items:start}.paper{min-width:0;max-width:760px}.article-meta{display:flex;align-items:center;gap:12px;font-size:11px;color:var(--muted)}.paper h1{font-size:28px;line-height:1.8;margin:12px 0}.lead{font-size:14px;color:var(--muted);line-height:2;padding:0 0 24px;margin:0;border-bottom:1px solid var(--line)}.article-body{font-size:15px;line-height:2.2;overflow-wrap:anywhere}.article-body p{margin:24px 0}.article-body h2{font-size:20px;line-height:1.8;margin:30px 0 12px}.article-aside{padding-top:8px}.toc{padding:0;list-style:none;border-right:1px solid var(--line);margin:0}.toc li{margin:0}.toc a{display:block;padding:6px 14px;font-size:12px}.toc a:hover{border-right:2px solid var(--brand);margin-right:-1px}.share{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:20px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.share button{border:1px solid #d3d7df;background:#fff;padding:7px 14px;border-radius:4px;font-size:12px}.share button:hover{border-color:var(--brand);color:var(--brand)}.related{margin:32px 0 0;max-width:760px}.related>h2{font-size:16px;margin:0 0 12px}.related-list{border-top:1px solid var(--line)}.related-list li{border-bottom:1px solid var(--line)}.related-list a{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 0;font-size:13px}.related-list span{color:var(--muted)}.footer{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);margin-top:40px;padding-block:22px;font-size:11px;color:var(--muted)}.footer>div{display:flex;gap:24px}.mobile-support{display:none}.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.skip{position:fixed;top:8px;right:12px;transform:translateY(-180%);background:#fff;border:1px solid var(--brand);padding:8px 16px;z-index:50}.skip:focus{transform:none}
@media(max-width:900px){.wrap{width:calc(100% - 48px)}.listing-layout.with-sidebar{gap:28px;grid-template-columns:minmax(0,1fr) 200px}.listing-aside{padding-right:20px}.intro-title{display:block}.intro p{margin-top:8px}.reading{gap:32px;grid-template-columns:minmax(0,1fr) 190px}.brand-caption{display:none}}
@media(max-width:700px){.wrap{width:calc(100% - 32px)}.header-inner{min-height:64px;gap:12px}.brand-name{font-size:23px}.header-nav{gap:12px}.header-nav .nav-education{display:none}.header-nav .button{font-size:11px;min-height:36px;padding:7px 12px}.intro{padding:24px 0 20px}.intro h1{font-size:22px}.intro p{font-size:12px;margin-top:6px}.intro-title{margin-bottom:16px}.search-form{flex-wrap:wrap;gap:8px}.search-input{flex-basis:calc(100% - 90px)}.search-input input{height:44px;font-size:12px}.search-form>.button{min-width:78px;min-height:44px;padding:8px 12px}.category-select,.landing-search .category-select{display:flex;order:3;flex-basis:100%;min-width:0}.category-select select{min-height:40px;font-size:12px}.listing-layout,.listing-layout.with-sidebar{display:block;padding-top:20px}.listing-aside{display:none}.results-head h2{font-size:16px}.results-head>div{gap:10px}.results-count,.clear-filter{font-size:10px}.article-row{padding:15px 0;gap:12px}.article-row h3{font-size:14px}.article-row p{-webkit-line-clamp:2;font-size:12px;margin-bottom:7px}.row-meta{font-size:10px;gap:7px}.row-arrow{font-size:17px}.pages{gap:5px}.pages a{padding:5px 9px;min-width:32px}.reading{display:block}.article-aside{padding-top:20px}.article-aside .side-block:first-child{display:none}.article-body{font-size:14px;line-height:2.2}.article-body h2{font-size:18px}.paper h1{font-size:23px}.lead{font-size:13px;padding-bottom:20px}.crumb{padding:18px 0;font-size:10px}.related{margin-top:24px}.related-list a{font-size:12px}.footer{align-items:start;flex-direction:column;gap:12px;margin-top:28px;padding-bottom:90px}.footer>div{gap:20px}.mobile-support{display:block;position:fixed;bottom:0;inset-inline:0;background:#fff;color:var(--brand);border-top:1px solid var(--line);padding:12px 16px calc(12px + env(safe-area-inset-bottom));font-size:12px;font-weight:500;text-align:center;z-index:25}.list-support{align-items:start;font-size:11px;gap:12px}.list-support .text-link{font-size:11px;flex-shrink:0}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}