/* Navruz: shared public-header search and concept directory. */
.nv-home,.nv-main,.nv-help,.nv-viewer{--nv-blue:#0759ce;--nv-ink:#182c48;--nv-muted:#64758c;--nv-line:#d7e3f3;color:var(--nv-ink);font-family:var(--font,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif);font-size:15px;line-height:1.55}
.nv-home *,.nv-main *,.nv-help *,.nv-viewer *{box-sizing:border-box}
.nv-home [hidden],.nv-main [hidden],.nv-help[hidden],.nv-viewer [hidden]{display:none!important}
.nv-home .ip-contact-bar.ip-contact-bar--navruz{display:grid!important;grid-template-columns:minmax(270px,1fr) repeat(4,auto);gap:10px;align-items:start!important;padding-block:14px 8px!important}
.nv-home .nv-search{min-width:0;margin-right:20px}
.nv-form{display:flex;position:relative;gap:8px;margin:0;background:#fff;border:1px solid #bccfe8;border-radius:10px;padding:4px;min-height:46px;box-shadow:0 3px 14px #113b6b08}
.nv-form:focus-within{outline:2px solid #0966e838;outline-offset:2px;border-color:#176ce4}
.nv-form input[type=search]{width:100%;min-width:0;flex:1;margin:0;border:0;background:transparent;padding:7px 10px;color:#142b48;font:inherit;font-size:16px;outline:0;box-shadow:none;border-radius:6px;height:auto}
.nv-form>button{flex:none;display:grid;place-items:center;min-width:40px;min-height:36px;padding:7px;background:#0759ce;color:white;border:0;border-radius:7px;cursor:pointer}
.nv-search-meta{display:flex;align-items:center;flex-wrap:wrap;gap:6px 16px;margin-top:6px;font-size:12px;color:#64758c}
.nv-help-open{padding:0;border:0;background:none;color:#0759ce;cursor:pointer;font:inherit;text-decoration:underline;text-underline-offset:3px}
.nv-suggest{position:absolute;z-index:110;top:calc(100% + 6px);left:0;right:0;max-height:300px;overflow:auto;background:white;box-shadow:0 15px 32px #183a6129;border:1px solid #c5d7f0;border-radius:10px;padding:5px}
.nv-suggest [role=option]{display:block;width:100%;text-align:left;padding:10px 12px;font:inherit;color:#182c48;background:white;border:0;border-radius:6px;cursor:pointer;white-space:normal}
.nv-suggest [role=option]:hover,.nv-suggest [aria-selected=true]{background:#edf4ff;color:#0759ce}
.nv-home-results{margin-block:10px 24px!important;background:#f5f8fd;border:1px solid #d7e3f3;border-radius:14px;padding:24px;scroll-margin-top:100px}
.nv-home .nv-help{position:fixed;inset:0;margin:auto;border:1px solid #d7e3f3;border-radius:20px;box-shadow:0 30px 100px #0b214854;width:min(540px,calc(100% - 28px));max-width:540px;height:fit-content;max-height:85dvh;padding:32px;overflow:auto;background:#fff}
.nv-help:not([open]),.nv-viewer:not([open]){display:none!important}
.nv-help::backdrop,.nv-viewer::backdrop{background:#0c1f39a6}
.nv-close{display:grid;place-items:center;float:right;width:36px;height:36px;padding:0;border:1px solid #d7e3f3;border-radius:8px;background:#f5f8fd;color:#182c48;font:24px/1 Arial;cursor:pointer}
.nv-help h2{margin:12px 0;font:700 26px/1.22 var(--display,Arial,sans-serif);max-width:90%}
.nv-eyebrow{font-size:11px;font-weight:700;letter-spacing:.09em;color:#0759ce}
.nv-help-chip{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;padding:16px;margin:22px 0 16px;border:0;border-radius:10px;background:#0759ce;color:white;font:600 15px/1.4 var(--font,Arial,sans-serif);text-align:left;cursor:pointer}
.nv-link{color:#0759ce;text-decoration:none;font-weight:600}.nv-link:hover{text-decoration:underline}
.nv-note{font-size:13px;line-height:1.55;color:#64758c;margin:10px 0}
.nv-main{margin-block:20px 64px!important}
.nv-breadcrumb{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 30px;font-size:12px;color:#64758c}
.nv-breadcrumb a{color:#406487;text-decoration:none}
.nv-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:28px;align-items:start}
.nv-primary{min-width:0}.nv-intro{margin-bottom:24px}.nv-intro h1{font:700 clamp(25px,3vw,36px)/1.18 var(--display,Arial,sans-serif);margin:12px 0 16px;letter-spacing:-.025em;color:#152740;overflow-wrap:anywhere}
.nv-intro p{color:#526881;font-size:16px;max-width:760px;margin:0}
.nv-search-panel{padding:22px;border:1px solid #d7e3f3;border-radius:16px;background:linear-gradient(125deg,#f2f7ff,#fff 60%);min-width:0}
.nv-chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.nv-chips button,.nv-chips a{display:block;border:1px solid #d5e2f3;border-radius:8px;background:#fff;color:#0759ce;padding:9px 12px;text-decoration:none;font:inherit;font-size:13px;text-align:left;cursor:pointer;max-width:100%;overflow-wrap:anywhere}
.nv-chips button:hover,.nv-chips a:hover{border-color:#0759ce;background:#f1f6ff}
.nv-answer{margin-top:20px;border-top:1px solid #d7e3f3;padding-top:20px;overflow-wrap:anywhere}
.nv-answer>p{margin:12px 0}.nv-result-heading{display:flex;align-items:baseline;gap:12px;justify-content:space-between;flex-wrap:wrap}
.nv-result-heading h2,.nv-site-results h2{font:700 22px/1.3 var(--display,Arial,sans-serif);margin:0;color:#182c48}
.nv-result-heading a{font-size:12px}
.nv-document{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;margin:18px 0;border-block:1px solid #d7e3f3;font-size:14px}
.nv-document>div{min-width:0}.nv-document .nv-note{margin-bottom:0}
.nv-button{display:inline-flex;align-items:center;justify-content:center;padding:11px 14px;min-height:42px;background:#0759ce;border:1px solid #0759ce;color:#fff;border-radius:9px;text-decoration:none;font:600 13px/1.4 var(--font,Arial,sans-serif);cursor:pointer;text-align:center}
.nv-button--outline{background:white;color:#0759ce;border-color:#bcd2ef}.nv-document>a{flex:none}
.nv-gallery{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 24px)/3);gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;padding-bottom:10px;scrollbar-color:#a3bad9 #edf3fc;scrollbar-width:thin}
.nv-gallery figure{margin:0;border:1px solid #d7e3f3;border-radius:10px;background:white;overflow:hidden;min-width:0;scroll-snap-align:start}
.nv-gallery a{display:block;background:#edf2f7}.nv-gallery img{display:block;width:100%;height:auto;aspect-ratio:1.414;object-fit:contain}
.nv-gallery figcaption{font-size:12px;line-height:1.55;padding:12px;color:#294866}
.nv-share{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:14px}.nv-share span{font-size:12px;color:#536982}
.nv-info{border-bottom:1px solid #d7e3f3;padding:28px 0;scroll-margin-top:100px}.nv-info h2{font:700 23px/1.3 var(--display,Arial,sans-serif);margin:0 0 16px}.nv-info p,.nv-info li{color:#526881}.nv-info ol{padding-left:24px}.nv-info li+li{margin-top:10px}
.nv-aside{position:sticky;top:100px}.nv-aside-card{background:white;border:1px solid #d7e3f3;border-radius:14px;padding:24px;font-size:14px}.nv-aside a{display:block;margin-top:16px;color:#0759ce;text-decoration:none}.nv-aside p{font-size:13px;color:#64758c}.nv-aside hr{border:0;border-top:1px solid #d7e3f3;margin:24px 0}
.nv-directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px;padding:0;list-style:none}.nv-directory a{color:#0759ce;text-decoration:none}.nv-pagination{display:flex;justify-content:space-between;margin-top:28px;gap:20px}.nv-pagination a{color:#0759ce}
dialog.nv-viewer{position:fixed;inset:0;margin:auto;border:0;padding:16px;background:#f7f9fc;width:min(1400px,calc(100% - 24px));max-width:1400px;height:fit-content;max-height:94dvh;border-radius:14px;overflow:auto}
.nv-viewer-bar,.nv-viewer-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.nv-viewer-bar h2{font-size:17px;margin:0}.nv-viewer-bar a{font-size:13px;color:#0759ce}.nv-viewer-stage{overflow:auto;margin:14px 0;background:white;text-align:center;max-height:68dvh}.nv-viewer-stage img{max-width:100%;max-height:67dvh;width:auto;display:block;margin:auto}.nv-viewer-stage.is-zoomed img{max-width:none;max-height:none;width:1800px}.nv-viewer-footer p{flex:1;min-width:160px;font-size:13px;margin:0}.nv-viewer button{cursor:pointer}.nv-viewer-footer button{min-width:44px;min-height:42px;border:1px solid #bbd0ed;border-radius:7px;background:white;color:#0759ce}
.nv-viewer [disabled]{opacity:.4;cursor:default}.nv-visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.nv-viewer-stage{position:relative;min-height:220px}
.nv-viewer-stage.is-loading{min-height:min(440px,60dvh);background:#edf2f7}
.nv-viewer-stage [data-preview]{width:100%;height:min(67dvh,800px);object-fit:contain}
.nv-viewer-loading{position:absolute;z-index:1;left:50%;bottom:18px;transform:translateX(-50%);width:min(460px,calc(100% - 32px));box-sizing:border-box;padding:16px;border:1px solid #a6bddb;border-radius:12px;background:#fffffff5;box-shadow:0 6px 24px #15304d24;text-align:left;color:#12345a}
.nv-viewer-loading p{margin:0 0 10px;font-size:14px;line-height:1.5}
.nv-viewer-loading progress{display:block;width:100%;height:12px;accent-color:#075bd1}
.nv-viewer-loading [data-load-progress]{display:block;font-size:12px;margin-top:7px;font-variant-numeric:tabular-nums}
.nv-viewer-loading [data-retry]{margin-top:10px}
.nv-directory-page .nv-directory{grid-template-columns:repeat(3,minmax(0,1fr));gap:0 24px}
.nv-directory-page .nv-intro .nv-button{color:#fff;margin-top:16px}
.nv-directory-page .nv-directory li{min-width:0;border-bottom:1px solid #e4eaf2}
.nv-directory-page .nv-directory a{display:block;padding:13px 0;overflow-wrap:anywhere}
.nv-directory-count{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.nv-directory-count span{color:#65788b;font-size:14px}
.nv-directory-page .nv-pagination{justify-content:center;align-items:center;flex-wrap:wrap;gap:8px}
.nv-directory-page .nv-pagination :is(a,.nv-page-current){padding:10px 14px;min-height:24px;border:1px solid #cad9ec;border-radius:8px;text-decoration:none}
.nv-directory-page .nv-page-current{background:#075bd1;color:#fff;border-color:#075bd1}
@media(max-width:900px){.nv-directory-page .nv-directory{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.nv-directory-page .nv-directory{grid-template-columns:1fr}.nv-viewer-bar{gap:10px;position:relative}.nv-viewer-bar h2{flex-basis:100%;min-height:36px;padding-right:44px}.nv-viewer-bar [data-close]{position:absolute;top:0;right:0}.nv-viewer-loading{padding:12px;bottom:10px}}
.nv-main :is(a,button):focus-visible,.nv-home :is(a,button):focus-visible,.nv-help :is(a,button):focus-visible,.nv-viewer :is(a,button):focus-visible{outline:3px solid #287eef;outline-offset:3px}
@media(max-width:1050px){.nv-home .ip-contact-bar.ip-contact-bar--navruz{grid-template-columns:repeat(4,minmax(0,1fr))!important}.nv-home .nv-search{grid-column:1/-1;margin-right:0}.nv-home .ip-contact-button{width:100%!important}.nv-layout{grid-template-columns:minmax(0,1fr) 215px;gap:20px}}
@media(max-width:800px){.nv-layout{grid-template-columns:minmax(0,1fr)}.nv-aside{position:static}.nv-aside-card{display:none}.nv-main{margin-block:12px 40px!important}.nv-breadcrumb{margin-bottom:22px}.nv-search-panel{padding:18px}.nv-document{align-items:start;flex-direction:column}}
@media(max-width:520px){.nv-home .ip-contact-bar.ip-contact-bar--navruz{gap:8px!important}.nv-home .ip-contact-button{padding:10px 6px!important;font-size:11px!important;gap:4px!important}.nv-home .ip-contact-icon{width:15px!important;height:15px!important}.nv-home-results{padding:16px}.nv-home .nv-help{padding:24px}.nv-help h2{font-size:24px}.nv-search-panel{padding:14px}.nv-gallery{grid-auto-columns:82%;gap:10px}.nv-intro h1{font-size:27px}.nv-directory{grid-template-columns:minmax(0,1fr)}.nv-chips{gap:6px}.nv-chips button{font-size:12px;padding:9px}dialog.nv-viewer{padding:12px}.nv-viewer-footer p{font-size:11px}.nv-main.an-wrap{width:calc(100% - 28px)} }
@media(prefers-reduced-motion:reduce){.nv-gallery{scroll-behavior:auto}}

/* Concept result explanations and primary sources; existing layout is unchanged. */
.nv-explanation{margin:14px 0;padding:12px 14px;background:#eef4fc;border:1px solid #d7e3f3;border-radius:10px;font-size:13px;line-height:1.65}
.nv-explanation summary{color:#0759ce;cursor:pointer;font-weight:600;min-height:24px}
.nv-explanation summary:focus-visible{outline:2px solid #287eef;outline-offset:3px}
.nv-explanation p{margin:12px 0}.nv-explanation a,.nv-source-links a{color:#0759ce;text-decoration:none}
.nv-explanation a:hover,.nv-source-links a:hover{text-decoration:underline}
.nv-document-reference{margin:6px 0 0}.nv-sheet-count{font-size:14px;margin:20px 0 12px}
.nv-sheet-type{display:block;color:#64758c;font-size:11px;margin-bottom:8px}
.nv-gallery .nv-sheet-pdf{background:transparent;color:#0759ce;border:1px solid #d7e3f3;border-radius:6px;text-decoration:none;padding:8px;margin-top:12px;text-align:center}
.nv-official-sources{margin:18px 0;padding:16px;background:#f2f6fc;border:1px solid #d7e3f3;border-radius:10px}
.nv-official-sources h3{font:600 14px/1.4 var(--font,Arial,sans-serif);margin:0 0 10px;color:#182c48}
.nv-source-links{display:flex;flex-wrap:wrap;gap:12px 20px;font-size:13px}.nv-source-links a{overflow-wrap:anywhere}
.nv-official-sources .nv-note{margin-bottom:0}.nv-document-history{margin-top:22px;font-size:13px}.nv-document-history>summary{cursor:pointer;color:#0759ce}
.sra-concept-result{min-width:0;width:100%}.sra-concept-result .nv-answer{margin-top:0;border-top:0;padding-top:0}

/* Compact, source-separated document results. */
.nv-has-result .nv-search-meta,.nv-has-result .nv-search-intro,.nv-has-result .nv-examples{display:none}
.nv-answer--compact .nv-result-message{font-size:14px;color:#526881}
.nv-primary-document{margin-top:22px}
.nv-group-heading h3{font:600 17px/1.4 var(--font,Arial,sans-serif);margin:8px 0}
.nv-document-tag{display:inline-block;font-size:12px;color:#1e5b48;background:#e9f5ee;border-radius:6px;padding:5px 9px}
.nv-answer--compact .nv-sheet-count{font-size:13px;font-weight:400;margin:14px 0 10px}
.nv-answer--compact .nv-sheet-type{display:none}
.nv-gallery .nv-sheet-pdf--helper{display:none!important}
.nv-document-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.nv-document-actions .nv-button{font-size:12px;min-height:40px;padding:9px 12px}
.nv-date-note{font-size:12px;margin:6px 0}
.nv-related-documents{margin-top:24px;padding-top:20px;border-top:1px solid #d7e3f3}
.nv-related-documents>h3{font:600 16px/1.4 var(--font,Arial,sans-serif);margin:0}
.nv-related-documents>h3>span{display:inline-block;font-size:12px;padding:2px 7px;border-radius:6px;background:#e8eff9;color:#0759ce}
.nv-related-documents>.nv-note{font-size:12px;margin:8px 0 14px}
.nv-related-document{background:#fff;border:1px solid #d7e3f3;border-radius:10px;margin-top:10px;overflow:hidden}
.nv-related-document>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px;cursor:pointer;list-style:none;font-size:13px}
.nv-related-document>summary::-webkit-details-marker{display:none}
.nv-related-document>summary>span:first-child{min-width:0}
.nv-related-meta{display:block;color:#64758c;font-size:12px;margin-top:4px}
.nv-expand-label{color:#0759ce;font-size:12px;flex:none}
.nv-expand-label:after{content:' +'}
.nv-related-document[open] .nv-expand-label:after{content:' −'}
.nv-related-body{padding:0 14px 14px}
.nv-related-document>summary:focus-visible{outline:3px solid #287eef;outline-offset:-4px}
@media(max-width:520px){.nv-related-document>summary{flex-wrap:wrap}.nv-document-actions .nv-button{width:100%}.nv-related-body{padding-inline:10px}.nv-group-heading h3{font-size:16px}}