/* ==========================================================================
   article-style.css — AYAI Articles (RTL) Professional System
   - Compatible with the updated article HTML structure (hero/meta/toc/callout/kpi/cta/faq)
   - Works alongside /css/style.css (site-wide)
   - RTL + Persian typography + modern, readable, SEO-friendly article layout
   ========================================================================== */

/* ------------------------------
   0) Base tokens (scoped to pages that include this file)
   ------------------------------ */

:root{
  --a-container: 1100px;
  --a-radius-lg: 18px;
  --a-radius-md: 14px;
  --a-radius-sm: 12px;

  --a-shadow-1: 0 10px 28px rgba(0,0,0,.08);
  --a-shadow-2: 0 18px 48px rgba(0,0,0,.12);

  --a-border: rgba(0,0,0,.10);
  --a-border-2: rgba(0,0,0,.14);

  --a-text: #12131a;
  --a-muted: rgba(18,19,26,.72);
  --a-soft: rgba(18,19,26,.56);

  --a-bg: #ffffff;
  --a-surface: rgba(255,255,255,.78);
  --a-surface-2: rgba(255,255,255,.60);

  /* Brand (harmonize with your style.css) */
  --a-brand: #7E57C2;
  --a-brand-2: #004085;

  --a-info-bg: rgba(30,136,229,.10);
  --a-info-br: rgba(30,136,229,.20);

  --a-accent-bg: rgba(126,87,194,.10);
  --a-accent-br: rgba(126,87,194,.22);

  --a-warning-bg: rgba(255,193,7,.10);
  --a-warning-br: rgba(255,193,7,.22);

  --a-green-bg: rgba(46,125,50,.10);
  --a-green-br: rgba(46,125,50,.22);

  --a-code-bg: rgba(0,0,0,.05);

  --a-max-reading: 78ch;
}

/* Dark mode (best-effort without forcing your global theme) */
@media (prefers-color-scheme: dark){
  :root{
    --a-text: rgba(255,255,255,.92);
    --a-muted: rgba(255,255,255,.72);
    --a-soft: rgba(255,255,255,.58);

    --a-bg: #0c0d12;
    --a-surface: rgba(20,22,32,.72);
    --a-surface-2: rgba(20,22,32,.55);

    --a-border: rgba(255,255,255,.12);
    --a-border-2: rgba(255,255,255,.18);

    --a-shadow-1: 0 10px 28px rgba(0,0,0,.55);
    --a-shadow-2: 0 18px 48px rgba(0,0,0,.65);

    --a-code-bg: rgba(255,255,255,.06);
  }
}

/* ------------------------------
   1) Global article page hygiene
   ------------------------------ */

html{ scroll-behavior: smooth; }

body{
  background: var(--a-bg);
  color: var(--a-text);
}

/* Skip link (your HTML already has this class) */
.skip-link{
  position:absolute;
  right:12px;
  top:-70px;
  background:#111;
  color:#fff;
  padding:10px 12px;
  border-radius: 10px;
  z-index:9999;
  transition: top .2s ease;
  text-decoration:none;
  font-weight: 800;
}
.skip-link:focus{ top:12px; }

/* Improve focus visibility for accessibility */
:where(a,button,[role="button"],input,textarea,select):focus-visible{
  outline: 3px solid rgba(126,87,194,.55);
  outline-offset: 3px;
  border-radius: 10px;
}

/* Links inside article */
.article-content a{
  color: var(--a-brand);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
.article-content a:hover{
  text-decoration-thickness: 3px;
}

/* ------------------------------
   2) Article layout container
   ------------------------------ */

.article-content{
  max-width: var(--a-container);
  margin: 0 auto;
  padding: 14px 16px 60px;
}

@media (min-width: 960px){
  .article-content{
    padding: 18px 16px 70px;
  }
}

/* Make paragraphs readable */
.article-content :where(p,ul,ol,dl){
  max-width: var(--a-max-reading);
}
.article-content p{
  line-height: 2.0;
  color: var(--a-text);
  margin: 10px 0 0;
}
.article-content p + p{ margin-top: 12px; }

/* Headings */
.article-content h1,
.article-content h2,
.article-content h3{
  color: var(--a-text);
  line-height: 1.45;
}

.article-content h2{
  font-size: 1.28rem;
  margin: 26px 0 10px;
  letter-spacing: -0.2px;
}
.article-content h3{
  font-size: 1.08rem;
  margin: 18px 0 8px;
}

/* Section rhythm */
.article-content section{
  margin: 18px 0;
  padding-top: 6px;
}

/* Anchor offset for sticky headers (if any) */
.article-content section[id]{
  scroll-margin-top: 90px;
}

/* Lists */
.article-content ul,
.article-content ol{
  margin: 12px 0 0;
  padding-right: 18px;
  line-height: 2.0;
  color: var(--a-text);
}
.article-content li{ margin: 6px 0; }

/* Definition lists (FAQ) */
.article-content dl{
  margin: 12px 0 0;
}
.article-content dt{
  font-weight: 900;
  margin-top: 14px;
}
.article-content dd{
  margin: 8px 10px 0;
  color: var(--a-muted);
  line-height: 2.0;
}

/* Inline code */
.article-content code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  background: var(--a-code-bg);
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid var(--a-border);
  font-size: .95em;
}

/* ------------------------------
   3) Hero (header area)
   - Your article pages use .article-hero
   ------------------------------ */

.article-hero{
  position: relative;
  padding: 30px 16px;
  text-align: center;
  overflow: hidden;
}

/* Soft background gradient (subtle, professional) */
.article-hero::before{
  content:"";
  position:absolute;
  inset: 0;
  background:
    radial-gradient(1200px 450px at 50% -10%, rgba(126,87,194,.18), transparent 62%),
    radial-gradient(900px 380px at 10% 10%, rgba(30,136,229,.12), transparent 55%),
    radial-gradient(900px 380px at 90% 10%, rgba(0,64,133,.10), transparent 55%);
  pointer-events:none;
}

.article-hero > *{
  position: relative;
  z-index: 1;
}

.article-hero h1{
  font-size: 1.52rem;
  margin: 8px auto 0;
  max-width: 980px;
  letter-spacing: -0.4px;
}
.article-hero .subtitle{
  max-width: 920px;
  margin: 10px auto 0;
  color: var(--a-muted);
  line-height: 2.0;
}

/* Meta row pills (your HTML uses .meta-row / .meta-pill) */
.meta-row{
  display:flex;
  justify-content:center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.meta-pill{
  border: 1px solid var(--a-border);
  background: var(--a-surface);
  padding: 7px 10px;
  border-radius: 999px;
  font-size: .92rem;
  color: var(--a-muted);
  backdrop-filter: blur(10px);
}

/* ------------------------------
   4) TOC
   - Your HTML uses nav.toc
   ------------------------------ */

nav.toc{
  border: 1px solid var(--a-border);
  background: var(--a-surface);
  border-radius: var(--a-radius-md);
  padding: 14px 14px;
  margin: 18px 0 24px;
  box-shadow: var(--a-shadow-1);
  backdrop-filter: blur(12px);
}

nav.toc strong{
  display:block;
  margin-bottom: 10px;
  font-weight: 900;
}

nav.toc ul{
  margin: 0;
  padding-right: 18px;
}

nav.toc li{
  margin: 6px 0;
}

nav.toc a{
  color: var(--a-brand-2);
  text-decoration: none;
  font-weight: 700;
}
nav.toc a:hover{
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ------------------------------
   5) Callouts, KPI blocks, tips
   - Your HTML uses .callout and .kpi
   ------------------------------ */

.callout{
  margin: 22px 0;
  padding: 14px 14px;
  border-radius: var(--a-radius-md);
  background: var(--a-accent-bg);
  border: 1px solid var(--a-accent-br);
  box-shadow: var(--a-shadow-1);
}

.kpi{
  margin: 22px 0;
  padding: 14px 14px;
  border-radius: var(--a-radius-md);
  background: var(--a-info-bg);
  border: 1px solid var(--a-info-br);
  box-shadow: var(--a-shadow-1);
}

/* Optional helper classes you might add later */
.callout.is-warning{
  background: var(--a-warning-bg);
  border-color: var(--a-warning-br);
}
.callout.is-success{
  background: var(--a-green-bg);
  border-color: var(--a-green-br);
}

/* Checklist list spacing */
.checklist{
  margin-top: 8px;
}
.checklist li{
  position: relative;
  padding-right: 6px;
}

/* ------------------------------
   6) CTA button (generic)
   - Your HTML uses .cta-btn inside .cta-row
   ------------------------------ */

.cta-row{
  margin: 30px 0 10px;
  text-align: center;
}

.cta-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 14px;
  background: var(--a-brand);
  color: #fff !important;
  text-decoration: none;
  font-weight: 900;
  letter-spacing: -0.2px;
  box-shadow: var(--a-shadow-2);
  border: 1px solid rgba(255,255,255,.18);
  transform: translateY(0);
  transition: transform .15s ease, filter .15s ease, box-shadow .15s ease;
}

.cta-btn:hover{
  transform: translateY(-2px);
  filter: brightness(1.02);
  box-shadow: 0 22px 55px rgba(0,0,0,.16);
}

.cta-btn:active{
  transform: translateY(0);
}

/* If your site-wide style has .button/.cta-button too, keep them consistent */
.article-content .button,
.article-content .cta-button{
  border-radius: 14px;
}

/* ------------------------------
   7) Tables, images, blockquotes
   ------------------------------ */

.article-content img{
  max-width: 100%;
  height: auto;
  border-radius: var(--a-radius-md);
}

.article-content table{
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 16px 0 0;
  border: 1px solid var(--a-border);
  border-radius: var(--a-radius-md);
  overflow: hidden;
  background: var(--a-surface);
}

.article-content th,
.article-content td{
  padding: 12px 12px;
  border-bottom: 1px solid var(--a-border);
  vertical-align: top;
  line-height: 1.9;
}

.article-content th{
  font-weight: 900;
  color: var(--a-text);
  background: rgba(126,87,194,.08);
}

.article-content tr:last-child td{
  border-bottom: 0;
}

.article-content blockquote{
  margin: 18px 0 0;
  padding: 12px 14px;
  border-right: 4px solid rgba(126,87,194,.55);
  background: var(--a-surface);
  border-radius: var(--a-radius-md);
  color: var(--a-muted);
}

/* ------------------------------
   8) Micro-animations (respect reduced motion)
   ------------------------------ */

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .cta-btn{ transition: none; }
  .cta-btn:hover{ transform: none; }
}

/* ------------------------------
   9) Print-friendly
   ------------------------------ */

@media print{
  .skip-link,
  .menu-toggle,
  nav.toc{
    display: none !important;
  }
  body{
    background: #fff !important;
    color: #000 !important;
  }
  .article-content{
    max-width: 100% !important;
    padding: 0 !important;
  }
  a{
    color: #000 !important;
    text-decoration: underline !important;
  }
}