/* MIRSAD atlas website. Shared local styles, with paired light/dark tokens. */
:root {
  color-scheme: dark;
  --bg: #081720;
  --panel: #102633;
  --soft: #16313f;
  --text: #f2f7fa;
  --muted: #b0c5d0;
  --line: #2d4858;
  --accent: #79e3db;
  --accent-fill: #62d8cd;
  --on-accent: #062b31;
  --gold: #edbd72;
  --header: #081720f5;
  --hero: #102b3c;
  --shadow: 0 24px 70px #0004;
  --green: #82e0ad;
  --green-bg: #123e32;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f2f6f8;
  --panel: #ffffff;
  --soft: #e8f0f4;
  --text: #142f40;
  --muted: #4d6676;
  --line: #ccdbe3;
  --accent: #006c71;
  --accent-fill: #087c7d;
  --on-accent: #ffffff;
  --gold: #80531a;
  --header: #f2f6f8f5;
  --hero: #e4eef3;
  --shadow: 0 24px 70px #14354812;
  --green: #176d43;
  --green-bg: #e5f4eb;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 90px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.85 'Segoe UI', Tahoma, Arial, sans-serif; }
a { color: var(--accent); text-underline-offset: .25em; }
a:hover { text-decoration-thickness: 2px; }
button, input, select { font: inherit; }
button { cursor: pointer; }
button, input, select { color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 9px; }
button, select { padding: .55rem .85rem; }
input { width: 100%; padding: .65rem .9rem; }
button:hover { background: var(--soft); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { line-height: 1.45; }
h1 { font-size: clamp(2rem, 3.5vw, 3.35rem); font-weight: 750; letter-spacing: -.025em; }
h2 { font-size: clamp(1.6rem, 2.5vw, 2.25rem); }
h3 { font-size: 1.12rem; }
p + p { margin-top: .8rem; }
ul, ol { padding-inline-start: 1.4rem; }
code, bdi { unicode-bidi: isolate; }
code { font-size: .85em; overflow-wrap: anywhere; background: var(--soft); padding: .16rem .4rem; border-radius: 5px; }
small { font-size: .82rem; }
.wrap { width: min(1300px, calc(100% - 3rem)); margin-inline: auto; }
.muted { color: var(--muted); }
.eyebrow { font-size: .78rem; font-weight: 700; letter-spacing: .035em; color: var(--accent); margin-bottom: .7rem; }
.lead { font-size: 1.04rem; color: var(--muted); max-width: 65ch; margin-top: 1rem; }
.skip { position: fixed; top: -8rem; inset-inline-start: 1rem; z-index: 30; background: var(--panel); padding: 1rem; }
.skip:focus { top: 1rem; }
.icon-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 21px; height: 21px; display: inline-block; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Compact navigation */
.site-header { position: sticky; top: 0; z-index: 10; background: var(--header); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-row { min-height: 78px; display: flex; gap: 1.1rem; align-items: center; }
.brand { display: flex; gap: .65rem; align-items: center; text-decoration: none; color: var(--text); font-size: 1.25rem; font-weight: 750; white-space: nowrap; }
.brand img { width: 39px; height: 39px; background: #08273d; padding: 4px; border-radius: 10px; }
.brand small { display: block; font-size: .65rem; font-weight: 400; color: var(--muted); line-height: 1.2; }
.site-nav { display: flex; gap: 1.2rem; align-items: center; margin-inline-start: auto; font-size: .86rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { color: var(--accent); }
.header-actions { display: flex; gap: .4rem; align-items: center; }
.header-actions button { font-size: .8rem; padding: .45rem .65rem; white-space: nowrap; }

/* Atlas cover: the real application is the main visual. */
.hero { position: relative; margin-top: 2rem; padding: 2.4rem; display: grid; grid-template-columns: minmax(0,.8fr) minmax(0,1.2fr); gap: 2.3rem; align-items: center; border: 1px solid var(--line); border-radius: 24px; background: url('atlas-lines.svg') center/cover, linear-gradient(130deg, var(--hero), var(--panel)); overflow: hidden; }
.hero-copy { min-width: 0; }
.identity-logo { width: 235px; border-radius: 10px; background: white; margin-bottom: 1.2rem; }
.hero h1 { margin-bottom: .3rem; }
.actions { display: flex; gap: .7rem; flex-wrap: wrap; margin-top: 1.4rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: .55rem; padding: .75rem 1.05rem; border: 1px solid var(--line); border-radius: 9px; text-decoration: none; color: var(--text); font-weight: 650; font-size: .88rem; background: var(--panel); }
.button:hover { background: var(--soft); border-color: var(--accent); }
.button.primary { background: var(--accent-fill); color: var(--on-accent); border-color: var(--accent-fill); box-shadow: 0 6px 22px #12b8c81a; }
.button.primary:hover { filter: brightness(1.08); }
.release-note { margin-top: 1rem; font-size: .79rem; color: var(--muted); }
.preview { min-width: 0; background: #10202b; border: 1px solid #486373; border-radius: 13px; overflow: hidden; box-shadow: var(--shadow); }
.preview-bar { padding: .65rem 1rem; display: flex; justify-content: space-between; gap: .6rem; font-size: .71rem; color: #d1e0e7; border-bottom: 1px solid #375263; }
.preview-bar bdi::before { content: ''; display: inline-block; width: 6px; height: 6px; background: #73d5b2; border-radius: 50%; margin-inline-end: .5rem; }
.preview img { width: 100%; }
.preview figcaption { padding: .7rem 1rem; font-size: .75rem; color: #c1d1da; }
.hero-bottom { grid-column: 1/-1; display: flex; gap: 1rem; flex-wrap: wrap; justify-content: space-between; align-items: center; padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: .82rem; color: var(--muted); }
.format-tags { display: flex; gap: .5rem; flex-wrap: wrap; }
.format-tags bdi { font-size: .75rem; border: 1px solid var(--line); padding: .15rem .55rem; border-radius: 5px; background: var(--panel); }
.stats { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 1.25rem; border-block: 1px solid var(--line); }
.stat { padding: 1.2rem 1.6rem; border-inline-start: 1px solid var(--line); }
.stat:first-child { border-inline-start: 0; }
.stat strong { display: block; font: 650 1.85rem/1.3 'Segoe UI', sans-serif; color: var(--accent); margin-bottom: .3rem; }
.stat span { font-size: .8rem; color: var(--muted); }

/* Content hierarchy */
.section { padding: 4.5rem 0; border-bottom: 1px solid var(--line); }
.section-head { display: flex; align-items: end; gap: 2rem; justify-content: space-between; margin-bottom: 1.8rem; }
.section-head > a { white-space: nowrap; font-size: .86rem; }
.section-head p { max-width: 70ch; color: var(--muted); margin-top: .8rem; }
.section-head .eyebrow { color: var(--accent); margin-top: 0; }
.grid { display: grid; gap: 1.1rem; }
.grid.three { grid-template-columns: repeat(3,minmax(0,1fr)); }
.grid.two { grid-template-columns: repeat(2,minmax(0,1fr)); }
.card { padding: 1.65rem; background: var(--panel); border: 1px solid var(--line); border-radius: 13px; min-width: 0; }
.card p { color: var(--muted); font-size: .93rem; margin-top: .7rem; }
.number { font: 650 .75rem/1.5 'Segoe UI', sans-serif; color: var(--gold); display: inline-block; margin-bottom: 1rem; letter-spacing: .06em; }
#tools .card { border-top: 3px solid var(--accent); background: linear-gradient(155deg, var(--soft), var(--panel) 65%); }
#tools .card:nth-child(2) { border-top-color: var(--gold); }
#tools .card:nth-child(3) { border-top-color: #669fd5; }
.card-footer { margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid var(--line); font-size: .8rem; overflow-wrap: anywhere; }
.pills { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1rem; }
.pill { display: inline-block; border: 1px solid var(--line); background: var(--soft); border-radius: 5px; padding: .14rem .5rem; font-size: .73rem; color: var(--muted); }
.pill.account { color: var(--gold); border-color: var(--gold); }
.callout { padding: 1.2rem 1.4rem; border-inline-start: 3px solid var(--accent); background: var(--soft); border-radius: 10px; margin-top: 1.5rem; font-size: .9rem; }
.callout p { color: var(--muted); }
.source-strip { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.5rem; }
.source-strip bdi { padding: .55rem .8rem; border: 1px solid var(--line); border-radius: 7px; background: var(--panel); font-size: .83rem; }
.guide-intro { margin-top: 1.8rem; }
.guide-intro .card { padding: 1.2rem; }
.guide-intro h2, .guide-intro h3 { font-size: 1rem; }
.guide-intro p { font-size: .85rem; }
.steps { list-style: none; padding: 0; counter-reset: step; display: grid; gap: 1.1rem; }
.steps li { position: relative; padding-inline-start: 3rem; counter-increment: step; }
.steps li::before { content: counter(step); position: absolute; inset-inline-start: 0; top: 0; width: 2.1rem; height: 2.1rem; background: var(--soft); border: 1px solid var(--line); border-radius: 8px; text-align: center; color: var(--accent); font-size: .9rem; line-height: 2.1rem; }
.steps p { font-size: .9rem; color: var(--muted); margin-top: .35rem; }
.resource-list { list-style: none; padding: 0; margin: 1.2rem 0 0; }
.resource-list li { padding: .75rem 0; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: .4rem; justify-content: space-between; font-size: .9rem; }
.author-links { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: .8rem; font-size: .85rem; }

/* Searchable module and source references */
.filter-bar { display: flex; gap: .85rem; align-items: end; flex-wrap: wrap; margin: 1.5rem 0 1rem; padding: 1.1rem; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.filter-field { display: flex; flex-direction: column; gap: .3rem; min-width: 150px; font-size: .8rem; color: var(--muted); }
.filter-field.search { flex: 1; min-width: 200px; }
.filter-field select { width: 100%; }
.results-status { font-size: .8rem; color: var(--muted); margin-bottom: 1rem; }
.module-card { padding: 1.2rem; }
.module-card .number { margin-bottom: .5rem; }
.module-card h3 { font-size: 1rem; }
.module-card p { font-size: .85rem; }
.module-card code { font-size: .7rem; }
.empty { padding: 2rem; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 12px; }
.downloads .card { display: flex; flex-direction: column; }
.downloads .actions { margin-top: auto; padding-top: 1rem; }
.downloads p { margin-bottom: 1rem; }
.directory-hero { padding: 2.5rem; margin-top: 2rem; margin-bottom: 2.5rem; background: url('atlas-lines.svg') center/cover, var(--hero); border: 1px solid var(--line); border-radius: 20px; }
.directory-hero h1 { font-size: clamp(1.9rem,3vw,2.8rem); }
.breadcrumb { font-size: .8rem; margin-bottom: 1rem; color: var(--muted); }
.directory-layout { display: grid; grid-template-columns: 220px minmax(0,1fr); gap: 2rem; align-items: start; padding-bottom: 4rem; }
.directory-nav { position: sticky; top: 100px; font-size: .8rem; padding-inline-start: 1rem; border-inline-start: 2px solid var(--line); }
.directory-nav h2 { font-size: .95rem; margin-bottom: .7rem; }
.directory-nav ol { list-style: none; padding: 0; margin: 0; }
.directory-nav li { border-bottom: 1px solid var(--line); }
.directory-nav a { display: block; padding: .55rem .4rem; text-decoration: none; color: var(--muted); border-radius: 5px; }
.directory-nav a:hover, .directory-nav a[aria-current] { color: var(--accent); background: var(--soft); }
.directory-main { min-width: 0; }
.source-card { scroll-margin-top: 16px; margin-bottom: 1.2rem; padding: 1.6rem; }
.source-heading { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.source-heading .number { margin-bottom: .35rem; }
.source-heading h2 { font-size: 1.2rem; }
.source-facts { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; margin: 1.2rem 0; border-block: 1px solid var(--line); padding-block: 1.1rem; }
.source-facts div { min-width: 0; }
.source-facts dt { font-size: .75rem; color: var(--muted); }
.source-facts dd { margin: .3rem 0 0; font-size: .87rem; overflow-wrap: anywhere; }
.source-note { font-size: .9rem; color: var(--muted); }
details { margin-top: 1rem; }
summary { cursor: pointer; color: var(--accent); font-size: .87rem; line-height: 1.7; }
summary::marker { color: var(--accent); }
.variables { list-style: none; padding: 0; display: grid; gap: .6rem; }
.variables li { display: grid; grid-template-columns: minmax(100px,auto) 1fr; gap: .7rem; font-size: .8rem; padding-bottom: .6rem; border-bottom: 1px solid var(--line); }
.variables code { align-self: start; word-break: break-word; }
.variables small { color: var(--muted); display: block; }
.source-link { display: inline-block; margin-top: 1.2rem; font-size: .85rem; }
#hybrid { border-top: 3px solid var(--accent); }
.pipeline { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; direction: ltr; margin: 1.1rem 0; }
.pipeline > .pipeline-step { font: 600 .76rem/1.5 'Segoe UI',sans-serif; border: 1px solid var(--line); padding: .5rem .65rem; border-radius: 7px; background: var(--soft); }
.pipeline > i { font-style: normal; color: var(--accent); }
/* The translated label inside a step intentionally has no border or padding. */

/* Developer profile: portrait, full biography, icon actions and consulting. */
.author-section { background: linear-gradient(180deg, var(--bg), var(--hero)); }
.author-panel { position: relative; display: grid; grid-template-columns: 200px minmax(0,1fr); gap: 2.3rem; align-items: center; padding: 2.6rem; border: 1px solid var(--line); border-top: 3px solid var(--gold); border-radius: 20px; background: var(--panel); box-shadow: var(--shadow); }
.author-portrait { text-align: center; }
.portrait-frame { width: 164px; margin-inline: auto; padding: 4px; background: linear-gradient(135deg, #12b8c8, #e8ad43); border-radius: 50%; }
.portrait-frame img { width: 156px; height: 156px; object-fit: cover; object-position: center top; border-radius: 50%; border: 4px solid var(--panel); background: white; }
.portrait-caption { margin-top: .8rem; color: var(--muted); font-size: .8rem; }
.author-portrait > bdi { font-size: .7rem; color: var(--accent); }
.author-content h2 { font-size: 2.1rem; }
.author-content .eyebrow { margin-bottom: .3rem; }
.author-badge { display: inline-block; color: var(--accent); font-size: .76rem; font-weight: 600; padding: .2rem .6rem; border: 1px solid var(--line); border-radius: 5px; margin-top: .6rem; background: var(--soft); }
.author-bio { font-size: .95rem; color: var(--muted); margin-top: 1rem; line-height: 2; }
.contact-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.2rem; }
.contact-button { display: inline-flex; gap: .6rem; align-items: center; padding: .65rem 1rem; border: 1px solid var(--line); border-radius: 9px; text-decoration: none; color: var(--text); background: var(--soft); font-size: .83rem; font-weight: 600; }
.contact-button:hover { border-color: var(--accent); }
.contact-button .icon { width: 19px; height: 19px; color: var(--accent); }
.contact-button.whatsapp { color: var(--green); background: var(--green-bg); }
.contact-button.whatsapp .icon { color: var(--green); }
.consultation { grid-column: 1/-1; padding: 1.35rem; border: 1px solid var(--line); border-radius: 12px; background: var(--green-bg); display: flex; align-items: center; gap: 1.2rem; }
.consult-icon { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; flex-shrink: 0; color: var(--green); border: 1px solid var(--green); border-radius: 12px; }
.consult-icon .icon { width: 27px; height: 27px; }
.consult-copy { flex: 1; min-width: 0; }
.consult-copy h3 { font-size: .96rem; color: var(--green); }
.consult-copy p { margin-top: .4rem; font-size: .82rem; color: var(--muted); }
.consult-button { white-space: nowrap; background: var(--panel); border-color: var(--green); color: var(--green); font-size: .8rem; }
.site-footer { padding: 2rem 0; color: var(--muted); font-size: .8rem; }
.footer-row { display: flex; gap: 1rem; justify-content: space-between; flex-wrap: wrap; }

/* Progressive enhancement and responsive layouts. */
html[lang="ar"] [data-language="en"], html[lang="en"] [data-language="ar"], [hidden] { display: none !important; }
.js-only { display: none; }
html[data-enhanced] .js-only { display: initial; }
html[data-enhanced] .filter-bar.js-only { display: flex; }
html[data-enhanced] .results-status.js-only { display: block; }
html[data-enhanced] .header-actions .menu-toggle { display: none; }
@media (max-width: 1100px) {
  .site-nav { gap: .75rem; font-size: .8rem; }
  .header-row { gap: .75rem; }
  .hero { padding: 1.8rem; gap: 1.6rem; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); }
  .hero h1 { font-size: 2.1rem; }
  .hero .lead { font-size: .94rem; }
  .identity-logo { width: 205px; }
  .hero .button { font-size: .8rem; padding: .65rem .8rem; }
  .directory-layout { grid-template-columns: 180px minmax(0,1fr); gap: 1.4rem; }
  .author-panel { padding: 2rem; grid-template-columns: 175px minmax(0,1fr); gap: 1.5rem; }
}
@media (max-width: 850px) {
  .site-nav { display: none; position: absolute; top: 100%; inset-inline: 0; padding: 1rem; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
  .site-nav[data-open] { display: flex; }
  .header-actions { margin-inline-start: auto; }
  html[data-enhanced] .header-actions .menu-toggle { display: initial; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { max-width: 680px; }
  .hero h1 { font-size: 2.45rem; }
  .hero .preview { max-width: 100%; }
  .grid.three { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .section-head { align-items: start; flex-direction: column; gap: .8rem; }
  .directory-hero { padding: 1.8rem; }
  .consultation { flex-wrap: wrap; }
  .consult-button { margin-inline-start: 60px; }
}
@media (max-width: 650px) {
  .wrap { width: calc(100% - 2rem); }
  .header-row { min-height: 70px; gap: .5rem; }
  .brand { font-size: 1rem; }
  .brand small { display: none; }
  .brand img { width: 33px; height: 33px; }
  .header-actions button { padding: .4rem .5rem; font-size: .75rem; }
  .hero { margin-top: 1rem; padding: 1.3rem; border-radius: 16px; gap: 1.5rem; }
  .hero h1 { font-size: 2.05rem; }
  .hero-bottom { align-items: start; flex-direction: column; }
  .identity-logo { width: 205px; }
  .stats { grid-template-columns: repeat(2,1fr); }
  .stat { padding: 1rem; }
  .stat:nth-child(3) { border-inline-start: 0; border-top: 1px solid var(--line); }
  .stat:nth-child(4) { border-top: 1px solid var(--line); }
  .stat strong { font-size: 1.6rem; }
  .section { padding: 3rem 0; }
  .grid.three, .grid.two { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: repeat(2,minmax(0,1fr)) !important; }
  .card { padding: 1.25rem; }
  .directory-hero { padding: 1.35rem; margin-top: 1rem; }
  .directory-layout { grid-template-columns: minmax(0,1fr); }
  .directory-nav { position: static; border: 0; padding-inline-start: 0; }
  .directory-nav ol { display: flex; gap: .4rem; overflow-x: auto; max-width: 100%; padding-bottom: .6rem; }
  .directory-nav li { border: 1px solid var(--line); border-radius: 6px; flex-shrink: 0; }
  .directory-nav a { padding: .4rem .6rem; }
  .source-heading { flex-direction: column; gap: .6rem; }
  .source-facts { gap: .85rem; }
  .filter-field, .filter-field.search { min-width: 100%; }
  .author-panel { grid-template-columns: minmax(0,1fr); padding: 1.4rem; gap: 1.5rem; }
  .author-content .eyebrow, .author-content h2, .author-portrait { text-align: center; }
  .author-content h2 { font-size: 1.9rem; }
  .author-badge { display: table; margin-inline: auto; }
  .contact-actions { justify-content: center; }
  .consultation { padding: 1rem; gap: .8rem; }
  .consult-copy { flex-basis: calc(100% - 65px); }
  .consult-button { width: 100%; margin-inline-start: 0; }
}
@media (max-width: 430px) {
  .brand { gap: .4rem; font-size: .9rem; }
  .brand img { width: 29px; height: 29px; }
  .header-actions { gap: .25rem; }
  .header-actions button { padding: .35rem .45rem; }
  .module-grid { grid-template-columns: 1fr !important; }
  .source-facts, .variables li { grid-template-columns: 1fr; }
  .variables li { gap: .3rem; }
  .contact-button { padding: .6rem .8rem; }
  .actions .button { width: 100%; }
}
@media print {
  .site-header, .site-footer, .filter-bar, .directory-nav, .js-only, .skip, .actions, .contact-actions { display: none !important; }
  :root { --bg: #fff; --panel: #fff; --soft: #f5f5f5; --hero: #f6f6f6; --text: #111; --muted: #333; --line: #bbb; --accent: #07525e; --gold: #795211; color-scheme: light; }
  .wrap { width: 100%; }
  .directory-layout, .hero { display: block; }
  .card { break-inside: avoid; }
  .preview, .author-panel { box-shadow: none; }
  .hero, .directory-hero { background: var(--hero); }
  .section { padding: 1rem 0; }
  html[data-enhanced] .filter-bar.js-only, html[data-enhanced] .results-status.js-only { display: none !important; }
}