/* ============================================================
   AIVIDIA ARTICLE STYLES — aividia-article.css
   RTL / Persian medical blog — reusable for all articles
   Usage: wrap every article in <div class="aiv-article">
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700&display=swap');

/* ── ROOT TOKENS ─────────────────────────────────────────── */
:root {
  --aiv-white:        #ffffff;
  --aiv-bg:           #f8f9fb;
  --aiv-surface:      #ffffff;
  --aiv-border:       #e4e8f0;
  --aiv-border-light: #f0f3f8;

  --aiv-navy:         #1a2e4a;      /* headings */
  --aiv-ink:          #2d3a4a;      /* body text */
  --aiv-muted:        #6b7a8d;      /* captions, meta */

  --aiv-teal:         #0e8a7c;      /* brand primary */
  --aiv-teal-light:   #e6f4f2;      /* teal tints */
  --aiv-teal-mid:     #b3deda;
  --aiv-amber:        #e07a28;      /* CTA accent */
  --aiv-amber-light:  #fff4e8;

  --aiv-warn-bg:      #fff8e6;
  --aiv-warn-border:  #f0c060;
  --aiv-info-bg:      #eef6ff;
  --aiv-info-border:  #90c0f0;

  --aiv-radius:       10px;
  --aiv-radius-lg:    16px;
  --aiv-shadow:       0 2px 12px rgba(26,46,74,.07);
  --aiv-shadow-md:    0 4px 24px rgba(26,46,74,.11);

  --aiv-font:         'Vazirmatn', 'Tahoma', sans-serif;
  --aiv-lh:           1.95;
}

/* ── ARTICLE WRAPPER ─────────────────────────────────────── */
.aiv-article {
  direction: rtl;
  font-family: var(--aiv-font);
  font-size: 1.05rem;
  line-height: var(--aiv-lh);
  color: var(--aiv-ink);
  background: var(--aiv-bg);
  width: 100%;
  padding: 0 0 60px;
}

/* ── ARTICLE HEADER ──────────────────────────────────────── */
.aiv-article .art-header {
  background: linear-gradient(135deg, var(--aiv-navy) 0%, #1e4060 100%);
  color: #fff;
  padding: 48px 40px 40px;
  border-radius: 0 0 var(--aiv-radius-lg) var(--aiv-radius-lg);
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}
.aiv-article .art-header::before {
  content: '';
  position: absolute;
  top: -40px; left: -40px;
  width: 220px; height: 220px;
  background: var(--aiv-teal);
  opacity: .08;
  border-radius: 50%;
}
.aiv-article .art-eyebrow {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--aiv-teal-mid);
  margin-bottom: 12px;
  display: block;
}
.aiv-article .art-header h1 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 16px;
  color: #fff;
}
.aiv-article .art-meta {
  font-size: .82rem;
  color: rgba(255,255,255,.65);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.aiv-article .art-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* ── CONTENT BODY ────────────────────────────────────────── */
.aiv-article .art-body {
  padding: 0 28px;
}
@media (max-width: 600px) {
  .aiv-article .art-body { padding: 0 16px; }
  .aiv-article .art-header { padding: 36px 20px 30px; }
}

.aiv-article .art-body p {
  margin: 0 0 1.4em;
  font-size: 1.02rem;
}

/* ── HEADINGS ────────────────────────────────────────────── */
.aiv-article .art-body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--aiv-navy);
  margin: 2.2em 0 .7em;
  padding-right: 14px;
  border-right: 4px solid var(--aiv-teal);
  line-height: 1.5;
}
.aiv-article .art-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--aiv-navy);
  margin: 1.8em 0 .6em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.aiv-article .art-body h3::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--aiv-teal);
  flex-shrink: 0;
}

/* ── INLINE LINKS ────────────────────────────────────────── */
.aiv-article .art-body a {
  color: var(--aiv-teal);
  text-decoration: none;
  border-bottom: 1px solid var(--aiv-teal-mid);
  transition: color .2s, border-color .2s;
}
.aiv-article .art-body a:hover {
  color: #076b5f;
  border-color: #076b5f;
}

/* ── CALLOUT BOXES ───────────────────────────────────────── */
.aiv-article .callout {
  border-radius: var(--aiv-radius);
  padding: 18px 20px;
  margin: 1.6em 0;
  font-size: .97rem;
  line-height: 1.75;
}
.aiv-article .callout-warn {
  background: var(--aiv-warn-bg);
  border-right: 4px solid var(--aiv-warn-border);
}
.aiv-article .callout-info {
  background: var(--aiv-info-bg);
  border-right: 4px solid var(--aiv-info-border);
}
.aiv-article .callout-teal {
  background: var(--aiv-teal-light);
  border-right: 4px solid var(--aiv-teal);
}
.aiv-article .callout-title {
  font-weight: 700;
  font-size: .88rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 6px;
  display: block;
}
.aiv-article .callout-warn .callout-title  { color: #b8650a; }
.aiv-article .callout-info .callout-title  { color: #2a6eb0; }
.aiv-article .callout-teal .callout-title  { color: var(--aiv-teal); }

/* ── HIGHLIGHT / STRONG ──────────────────────────────────── */
.aiv-article .art-body strong {
  font-weight: 600;
  color: var(--aiv-navy);
}

/* ── LISTS ───────────────────────────────────────────────── */
.aiv-article .art-body ul,
.aiv-article .art-body ol {
  padding-right: 22px;
  padding-left: 0;
  margin: .4em 0 1.4em;
}
.aiv-article .art-body ul li,
.aiv-article .art-body ol li {
  margin-bottom: .55em;
  padding-right: 4px;
}
.aiv-article .art-body ul {
  list-style: none;
}
.aiv-article .art-body ul li::before {
  content: '◈';
  color: var(--aiv-teal);
  font-size: .75em;
  margin-left: 8px;
  vertical-align: middle;
}

/* ── IMAGE CAPTIONS ──────────────────────────────────────── */
.aiv-article .art-img-wrap {
  margin: 1.8em 0;
  text-align: center;
}
.aiv-article .art-img-wrap img {
  max-width: 100%;
  border-radius: var(--aiv-radius);
  box-shadow: var(--aiv-shadow);
}
.aiv-article .art-img-wrap figcaption {
  font-size: .82rem;
  color: var(--aiv-muted);
  margin-top: 8px;
  font-style: italic;
}

/* ── CTA CARDS ───────────────────────────────────────────── */
.aiv-article .cta-card {
  background: var(--aiv-surface);
  border: 1.5px solid var(--aiv-border);
  border-radius: var(--aiv-radius-lg);
  padding: 24px 26px;
  margin: 2em 0;
  box-shadow: var(--aiv-shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.aiv-article .cta-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--aiv-navy);
  line-height: 1.5;
}
.aiv-article .cta-card-desc {
  font-size: .93rem;
  color: var(--aiv-muted);
  line-height: 1.75;
  margin: 0;
}
.aiv-article .cta-btn {
  display: inline-block;
  align-self: flex-start;
  background: var(--aiv-amber);
  color: #fff !important;
  font-family: var(--aiv-font);
  font-size: .92rem;
  font-weight: 700;
  padding: 11px 24px;
  border-radius: 8px;
  text-decoration: none !important;
  border: none !important;
  transition: background .2s, transform .15s;
  cursor: pointer;
}
.aiv-article .cta-btn:hover {
  background: #c8681a;
  transform: translateY(-1px);
}
.aiv-article .cta-btn-teal {
  background: var(--aiv-teal);
}
.aiv-article .cta-btn-teal:hover {
  background: #076b5f;
}

/* ── INLINE LINK CTA (text-only) ─────────────────────────── */
.aiv-article .art-link-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--aiv-teal-light);
  color: var(--aiv-teal) !important;
  font-weight: 600;
  font-size: .93rem;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid var(--aiv-teal-mid) !important;
  text-decoration: none !important;
  transition: background .2s;
}
.aiv-article .art-link-cta:hover {
  background: var(--aiv-teal-mid);
}

/* ── DIVIDER ─────────────────────────────────────────────── */
.aiv-article .art-divider {
  border: none;
  border-top: 1.5px solid var(--aiv-border-light);
  margin: 2em 0;
}

/* ── TABLE ───────────────────────────────────────────────── */
.aiv-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: .92rem;
  margin: 1.4em 0;
}
.aiv-article th {
  background: var(--aiv-teal-light);
  color: var(--aiv-navy);
  font-weight: 600;
  padding: 10px 14px;
  text-align: right;
  border-bottom: 2px solid var(--aiv-teal-mid);
}
.aiv-article td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--aiv-border-light);
  vertical-align: top;
}
.aiv-article tr:last-child td { border-bottom: none; }
.aiv-article tr:nth-child(even) td { background: #f5f8fb; }

/* ── TOC BOX ─────────────────────────────────────────────── */
.aiv-article .art-toc {
  background: var(--aiv-surface);
  border: 1.5px solid var(--aiv-border);
  border-radius: var(--aiv-radius);
  padding: 20px 24px;
  margin: 0 0 2em;
  box-shadow: var(--aiv-shadow);
}
.aiv-article .art-toc-title {
  font-size: .9rem;
  font-weight: 700;
  color: var(--aiv-teal);
  margin-bottom: 12px;
  display: block;
  letter-spacing: .04em;
}
.aiv-article .art-toc ol {
  margin: 0;
  padding-right: 20px;
}
.aiv-article .art-toc li {
  margin-bottom: .4em;
  font-size: .9rem;
}
.aiv-article .art-toc a {
  color: var(--aiv-ink);
  border-bottom: none;
}
.aiv-article .art-toc a:hover { color: var(--aiv-teal); }

/* ── FAQ ─────────────────────────────────────────────────── */
.aiv-article .faq-item {
  border: 1px solid var(--aiv-border);
  border-radius: var(--aiv-radius);
  margin-bottom: 10px;
  overflow: hidden;
}
.aiv-article .faq-q {
  background: var(--aiv-surface);
  padding: 14px 18px;
  font-weight: 600;
  font-size: .97rem;
  color: var(--aiv-navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.aiv-article .faq-q::after {
  content: '＋';
  color: var(--aiv-teal);
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-right: 8px;
}
.aiv-article .faq-a {
  padding: 0 18px 14px;
  font-size: .95rem;
  color: var(--aiv-ink);
  line-height: 1.8;
  border-top: 1px solid var(--aiv-border-light);
  padding-top: 12px;
}

/* ── CONCLUSION BOX ──────────────────────────────────────── */
.aiv-article .art-conclusion {
  background: linear-gradient(135deg, var(--aiv-teal-light), #ddf3f0);
  border-right: 4px solid var(--aiv-teal);
  border-radius: var(--aiv-radius-lg);
  padding: 28px 30px;
  margin: 2.5em 0 1em;
}
.aiv-article .art-conclusion h2 {
  border: none !important;
  padding: 0 !important;
  margin-top: 0 !important;
  font-size: 1.2rem;
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 480px) {
  .aiv-article .art-body h2 { font-size: 1.18rem; }
  .aiv-article .art-body h3 { font-size: 1rem; }
  .aiv-article .cta-card { padding: 18px 16px; }
  .aiv-article .cta-btn { font-size: .88rem; padding: 10px 18px; }
}