/* =========================================================
   User Guides for the academic research tools
   أدلة المستخدم للأدوات البحثية الأكاديمية
   One stylesheet for all ten guide pages (Arabic RTL and English LTR).
   Design tokens, header, buttons and footer match the tools' stylesheets
   (rtitles.css, rmethods.css, litreview.css); guide components are
   scoped with the .guide-* prefix. Includes the print (A4) stylesheet.
   Academic tools developed by Dr. Merfat Alardawi | د. مرفت العرضاوي
   ========================================================= */

/* ---------- 1. Design tokens (same values as the tools) ---------- */
:root {
  --green: #1F6F6B;
  --green-dark: #154E4B;
  --green-deep: #0F4542;
  --green-ink: #134846;
  --green-tint: #E5F0EE;
  --green-tint-2: #F2F8F6;
  --gold: #C9A45C;
  --gold-light: #E7CC90;
  --gold-text: #7A5C22;
  --bg: #F3F6F5;
  --paper: #FFFFFF;
  --ink: #1A2524;
  --muted: #3F4C4A;
  --muted-2: #55625F;
  --border: #CADCD7;
  --border-strong: #A9C4BE;
  --warn-bg: #FFF4DE;
  --radius: 18px;
  --radius-sm: 12px;
  --font-body: 'IBM Plex Sans Arabic', 'Segoe UI', Tahoma, system-ui, sans-serif;
  --font-display: 'Amiri', 'Times New Roman', serif;
  --header-offset: 96px;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-offset); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font-body); font-size: 17px; line-height: 1.85; }
body[lang="en"], [lang="en"] body { line-height: 1.7; }
h1, h2, h3, h4, p { margin: 0; }
a { color: var(--green); }
a:hover { color: var(--green-dark); }
img { max-width: 100%; display: block; }
button { font: inherit; }
.container { max-width: 1200px; margin-inline: auto; padding-inline: 24px; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; inset-inline-start: 16px; top: -64px; z-index: 200; background: var(--gold); color: var(--green-ink); padding: 10px 18px; border-radius: 0 0 12px 12px; font-weight: 700; text-decoration: none; }
.skip-link:focus { top: 0; color: var(--green-ink); }

/* ---------- 3. Header (same look as the tools) ---------- */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(15,69,66,.97); color: #F4F1E8; border-bottom: 1px solid rgba(201,164,92,.35); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 10px 20px; padding-block: 10px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.logo { flex: none; display: block; }
.logo img { width: 46px; height: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.brand-title { font-family: var(--font-display); font-size: 19px; font-weight: 700; color: #F4F1E8; }
.brand-sub { font-size: 12.5px; color: #CFC6B2; }
.header-actions { display: flex; align-items: center; gap: 8px 10px; flex-wrap: wrap; }
.lang-switch, .header-link { display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px; border: 1px solid rgba(201,164,92,.75); border-radius: 999px; color: var(--gold-light); text-decoration: none; font-size: 14px; font-weight: 600; white-space: nowrap; }
.lang-switch:hover, .header-link:hover { background: rgba(201,164,92,.16); color: #fff; }
.header-link { border-color: rgba(244,241,232,.45); color: #F4F1E8; }
@media (max-width: 760px) { :root { --header-offset: 132px; } .brand-sub { display: none; } .brand-title { font-size: 17px; } }

/* ---------- 4. Buttons ---------- */
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { appearance: none; border: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 20px; border-radius: 999px; font-weight: 600; font-size: 15px; text-decoration: none; }
.btn-gold { background: var(--gold); color: var(--green-ink); }
.btn-gold:hover { background: #D8B672; color: var(--green-ink); }
.btn-light { background: transparent; border: 1.5px solid rgba(244,241,232,.65); color: #F4F1E8; }
.btn-light:hover { background: rgba(255,255,255,.1); color: #fff; }
.btn[hidden] { display: none; }

/* ---------- 5. Guide hero ---------- */
.guide-hero { background: linear-gradient(135deg, var(--green-deep), var(--green)); color: #F4F1E8; padding-block: 48px 40px; border-bottom: 3px solid var(--gold); }
.guide-hero .container { display: flex; flex-direction: column; gap: 14px; }
.guide-badge { align-self: flex-start; padding: 4px 14px; border: 1px solid rgba(201,164,92,.65); border-radius: 999px; color: var(--gold-light); font-size: 14px; }
.guide-hero h1 { font-family: var(--font-display); font-size: clamp(30px, 4.2vw, 46px); line-height: 1.25; max-width: 900px; }
.guide-lead { font-size: 18px; color: #E6E1D3; max-width: 820px; }
.guide-meta { font-size: 14px; color: #CFC6B2; }

/* ---------- 6. Layout: contents beside the guide ---------- */
.guide-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 32px; align-items: start; padding-block: 36px 56px; }
@media (max-width: 960px) { .guide-layout { grid-template-columns: 1fr; gap: 20px; } }
.guide-toc { position: sticky; top: calc(var(--header-offset) - 8px); max-height: calc(100vh - var(--header-offset) - 16px); overflow-y: auto; background: var(--paper); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 18px 14px; font-size: 15px; }
@media (max-width: 960px) { .guide-toc { position: static; max-height: none; } }
.guide-toc h2 { font-size: 16px; color: var(--green-ink); margin-bottom: 8px; font-family: var(--font-body); }
.guide-toc ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.guide-toc ol ol { padding-inline-start: 14px; margin-block: 2px 6px; border-inline-start: 2px solid var(--green-tint); }
.guide-toc a { display: block; padding: 4px 8px; border-radius: 8px; color: var(--muted); text-decoration: none; line-height: 1.5; }
.guide-toc a:hover { background: var(--green-tint-2); color: var(--green-dark); }
.guide-toc a.is-current { background: var(--green-tint); color: var(--green-ink); font-weight: 600; }
.guide-toc .toc-step { font-size: 14px; }

/* ---------- 7. Guide content ---------- */
.guide-content { background: var(--paper); border: 1px solid var(--border); border-radius: 22px; padding: 34px clamp(18px, 4vw, 44px); min-width: 0; }
.guide-content > section + section { margin-top: 30px; padding-top: 30px; border-top: 1px solid #E1EAE7; }
.guide-content h2 { font-family: var(--font-display); font-size: clamp(26px, 3vw, 32px); line-height: 1.35; color: var(--green-ink); margin-bottom: 14px; }
.guide-content h3 { font-size: 19px; line-height: 1.5; color: var(--green-dark); margin: 18px 0 8px; }
.guide-content p { margin: 0 0 12px; color: var(--ink); }
.guide-content ul, .guide-content ol { margin: 0 0 14px; padding-inline-start: 22px; }
.guide-content li { margin-bottom: 4px; }
[dir="rtl"] .guide-content ol { list-style-type: arabic-indic; }
.guide-content strong { color: var(--green-ink); }
.guide-intro { font-size: 18px; color: var(--muted); margin-bottom: 8px; }
.guide-step { border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px 12px; margin: 18px 0; background: #FCFEFD; }
.guide-step > h3 { margin-top: 0; display: flex; align-items: baseline; gap: 10px; }
.guide-step .step-badge { flex: none; display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; background: var(--green); color: #fff; font-size: 15px; font-weight: 700; }
.to-top { display: inline-block; margin-top: 4px; font-size: 13.5px; color: var(--muted-2); text-decoration: none; }
.to-top:hover { color: var(--green-dark); text-decoration: underline; }
.guide-note { border-inline-start: 4px solid var(--gold); background: #FBF6EA; padding: 12px 16px; border-radius: 10px; font-size: 15px; color: #4E3D17; margin: 12px 0; }
.guide-note.is-important { border-inline-start-color: #B07A12; background: var(--warn-bg); }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); margin: 10px 0 16px; background: #fff; position: relative; }
.table-wrap:focus-visible { outline: 3px solid var(--gold); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 620px; }
.table-wrap th, .table-wrap td { text-align: start; padding: 10px 12px; border-bottom: 1px solid #E1EAE7; vertical-align: top; }
.table-wrap thead th { background: var(--green-tint-2); color: var(--green-dark); font-size: 14px; }
.table-wrap tbody tr:last-child td { border-bottom: 0; }
.table-wrap td:first-child { font-weight: 600; color: var(--green-ink); }
.table-wrap td[dir="ltr"], .table-wrap td [dir="ltr"] { unicode-bidi: isolate; }
@media (max-width: 600px) { .table-wrap table { min-width: 520px; font-size: 14px; } }

/* FAQ */
.guide-faq dt { font-weight: 700; color: var(--green-ink); margin-top: 14px; }
.guide-faq dd { margin: 4px 0 0; padding-inline-start: 0; color: var(--muted); }

/* Back to the tool */
.guide-cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 30px; padding: 18px 20px; border-radius: var(--radius); background: var(--green-deep); color: #EDE8DB; }
.guide-cta p { margin: 0; color: #EDE8DB; }

/* ---------- 8. Footer (same as the tools) ---------- */
.site-footer { background: var(--green-ink); color: #D5CEBE; }
.footer-inner { padding-block: 36px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; align-items: center; }
.footer-col { display: flex; flex-direction: column; gap: 4px; font-size: 14px; max-width: 560px; }
.footer-title { font-family: var(--font-display); font-size: 21px; color: #F6F2E9; font-weight: 700; }
.footer-name { font-size: 18px; color: var(--gold-light); font-weight: 700; }
.small-muted { font-size: 13px; color: #BDB5A3; }
.footer-links a { color: #F6F2E9; font-size: 14px; text-decoration: underline; text-underline-offset: 7px; text-decoration-thickness: 1px; }
.footer-links a:hover { color: var(--gold-light); }
/* English pages only: underline the footer links */
html[lang="en"] .footer-links a { text-underline-offset: 4px; }
.footer-bar { border-top: 1px solid rgba(201,164,92,.35); background: rgba(0,0,0,.12); }
.footer-bar__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; padding-block: 14px; font-size: 14px; }
.footer-visitors { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.footer-visitors__icon { width: 1.25em; height: 1.25em; color: var(--gold-light); }
.footer-visitors__count { display: inline-flex; align-items: center; gap: 2px; direction: ltr; }
.footer-visitors__value { font-variant-numeric: tabular-nums; font-weight: 700; color: #F6F2E9; }
.footer-visitors__bracket { opacity: .7; }
.footer-separator { opacity: .5; user-select: none; }
.footer-copyright { margin: 0; display: inline-flex; align-items: center; gap: 6px; }
.footer-logo { width: 20px; height: 20px; object-fit: contain; }
.footer-bar__inner .footer-iconTop { margin-inline-start: auto; display: flex; }
.footer-top { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 10px; color: var(--green-deep); background: var(--gold-light); border: 2px solid var(--gold-light); }
.footer-top:hover { background: transparent; color: var(--gold-light); }
@media (max-width: 640px) {
  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .footer-links { align-items: center; }
  .footer-bar__inner { flex-direction: column; justify-content: center; text-align: center; gap: 8px; }
  .footer-separator { display: none; }
  .footer-bar__inner .footer-iconTop { margin-inline-start: 0; order: -1; }
  body { font-size: 16px; }
}

/* ---------- 9. Print / Save as PDF (A4) ---------- */
@page { size: A4; margin: 16mm 15mm 18mm; }
@media print {
  html { scroll-behavior: auto; }
  body { background: #fff; color: #000; font-size: 11pt; line-height: 1.6; }
  .site-header, .site-footer, .skip-link, .guide-toc, .to-top, .guide-hero .btn-row, .guide-cta .btn, .no-print { display: none !important; }
  .guide-hero { background: none; color: #000; border-bottom: 2px solid var(--green); padding: 0 0 10pt; }
  .guide-hero h1 { font-size: 20pt; color: var(--green-ink); }
  .guide-lead, .guide-meta, .guide-badge { color: #333; border-color: #999; }
  .container { max-width: none; padding: 0; }
  .guide-layout { display: block; padding: 0; }
  .guide-content { border: 0; padding: 0; border-radius: 0; }
  .guide-content h2 { font-size: 15pt; break-after: avoid; page-break-after: avoid; }
  .guide-content h3 { font-size: 12pt; break-after: avoid; page-break-after: avoid; }
  .guide-content > section + section { margin-top: 12pt; padding-top: 10pt; }
  .guide-step { background: none; border-color: #bbb; break-inside: avoid; page-break-inside: avoid; padding: 8pt 10pt 4pt; }
  .table-wrap { overflow: visible; border-color: #999; break-inside: avoid; page-break-inside: avoid; }
  .table-wrap table { min-width: 0; font-size: 9.5pt; }
  .table-wrap th, .table-wrap td { padding: 4pt 6pt; border-color: #bbb; }
  .table-wrap thead { display: table-header-group; }
  .guide-cta { background: none; color: #000; border: 1px solid #999; padding: 8pt; }
  .guide-cta p { color: #000; }
  .guide-print-footer { display: block !important; margin-top: 14pt; font-size: 9pt; color: #444; border-top: 1px solid #999; padding-top: 6pt; }
  a { color: #000; text-decoration: none; }
  .guide-content a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 8.5pt; }
}
.guide-print-footer { display: none; }