/*
 * IRFA Single Post — Dark Edition
 * Theme: Astra Child (irfa.au)
 * Colour: #40C598 accent, Claude.ai-inspired dark bg
 * Font:   Lato (IRFA local font, already loaded)
 *
 * Place this file at: /wp-content/themes/astra-child/irfa-single-post.css
 * Enqueue it via functions.php (see functions.php)
 */

/* ═══════════════════════════════════════════
   CSS VARIABLES
═══════════════════════════════════════════ */
:root {
  --irfa-bg:          #1a1a1a;
  --irfa-surface:     #212121;
  --irfa-elevated:    #2a2a2a;
  --irfa-hover:       #313131;
  --irfa-border:      #383838;
  --irfa-divider:     #2e2e2e;

  --irfa-accent:      #40C598;
  --irfa-accent-dim:  #34a67f;
  --irfa-accent-glow: rgba(64,197,152,0.12);
  --irfa-accent-glow2:rgba(64,197,152,0.22);
  --irfa-accent-ring: rgba(64,197,152,0.28);

  --irfa-text:        #ececec;
  --irfa-text-2:      #a0a0a0;
  --irfa-text-3:      #6a6a6a;
  --irfa-text-inv:    #111;

  --irfa-red:         #ef5350;
  --irfa-font:        'Lato', -apple-system, sans-serif;
  --irfa-r:           10px;
  --irfa-r-lg:        16px;
  --irfa-r-xl:        22px;
  --irfa-max:         1180px;
  --irfa-sh:          0 2px 16px rgba(0,0,0,0.45);
  --irfa-sh-lg:       0 8px 40px rgba(0,0,0,0.6);
  --irfa-sh-acc:      0 4px 24px rgba(64,197,152,0.18);
}

/* ═══════════════════════════════════════════
   READING PROGRESS BAR
═══════════════════════════════════════════ */
#irfa-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--irfa-accent), #7ee8c8, var(--irfa-accent));
  background-size: 200% 100%;
  animation: irfa-shimmer 2s linear infinite;
  z-index: 9999;
  transition: width 0.12s linear;
}
@keyframes irfa-shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

/* ═══════════════════════════════════════════
   OVERRIDE ASTRA BODY BG ON SINGLE POSTS
═══════════════════════════════════════════ */
body.single-post {
  background: var(--irfa-bg) !important;
}
body.single-post .site-content,
body.single-post #page,
body.single-post .ast-container,
body.single-post .ast-article-single {
  background: var(--irfa-bg) !important;
  color: var(--irfa-text) !important;
}
body.single-post .ast-single-post-order {
  padding: 0 !important;
  margin: 0 !important;
}
body.single-post .entry-header { display: none; } /* We render our own */

/* ═══════════════════════════════════════════
   PAGE WRAPPER
═══════════════════════════════════════════ */
#irfa-single-wrap {
  font-family: var(--irfa-font);
  color: var(--irfa-text);
  background: var(--irfa-bg);
}

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
.irfa-post-hero {
  position: relative;
  background:
    radial-gradient(ellipse 70% 60% at 15% 40%, rgba(64,197,152,0.07) 0%, transparent 65%),
    radial-gradient(ellipse 50% 50% at 85% 20%, rgba(19,82,162,0.08) 0%, transparent 60%),
    linear-gradient(180deg, #1e1e1e 0%, var(--irfa-bg) 100%);
  padding: 64px 32px 80px;
  border-bottom: 1px solid var(--irfa-border);
  overflow: hidden;
}
.irfa-post-hero::after {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--irfa-accent), transparent);
  opacity: 0.5;
}
.irfa-hero-inner {
  position: relative; z-index: 2;
  max-width: 840px; margin: 0 auto;
}
.irfa-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.78rem; color: var(--irfa-text-3);
  margin-bottom: 22px; flex-wrap: wrap;
}
.irfa-breadcrumb a { color: var(--irfa-text-3); text-decoration: none; transition: color 0.2s; }
.irfa-breadcrumb a:hover { color: var(--irfa-accent); }
.irfa-breadcrumb span:last-child { color: var(--irfa-text-2); }
.irfa-cat-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--irfa-accent-glow); border: 1px solid var(--irfa-accent-ring);
  color: var(--irfa-accent); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 100px; margin-bottom: 20px;
}
.irfa-post-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900; line-height: 1.18;
  color: var(--irfa-text); margin: 0 0 18px;
  letter-spacing: -0.025em;
}
.irfa-post-subtitle {
  font-size: 1.05rem; line-height: 1.75;
  color: var(--irfa-text-2); margin: 0 0 32px;
  max-width: 680px; font-weight: 300;
}
.irfa-meta-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.irfa-meta-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--irfa-elevated); border: 1px solid var(--irfa-border);
  color: var(--irfa-text-2); font-size: 0.8rem; font-weight: 600;
  padding: 5px 12px; border-radius: 100px;
}
.irfa-meta-pill.accent-pill {
  border-color: var(--irfa-accent-ring);
  color: var(--irfa-accent);
  background: var(--irfa-accent-glow);
}
/* Decorative grid */
.irfa-hero-grid {
  position: absolute; right: 0; top: 0;
  width: 380px; height: 100%;
  opacity: 0.04;
  background-image:
    linear-gradient(rgba(64,197,152,1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64,197,152,1) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #fff 60%);
  mask-image: linear-gradient(90deg, transparent, #fff 60%);
  pointer-events: none;
}
.irfa-hero-orb {
  position: absolute; right: 60px; top: 50%; transform: translateY(-50%);
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(64,197,152,0.12), transparent 70%);
  border-radius: 50%; pointer-events: none;
  animation: irfa-orb 4s ease-in-out infinite;
}
@keyframes irfa-orb {
  0%,100% { transform: translateY(-50%) scale(1); opacity:0.8; }
  50%      { transform: translateY(-55%) scale(1.06); opacity:1; }
}

/* ═══════════════════════════════════════════
   FEATURED IMAGE
═══════════════════════════════════════════ */
.irfa-featured-wrap {
  max-width: var(--irfa-max); margin: -28px auto 0; padding: 0 32px;
  position: relative; z-index: 10;
}
.irfa-featured-img {
  border-radius: var(--irfa-r-xl); overflow: hidden;
  box-shadow: var(--irfa-sh-lg), 0 0 0 1px var(--irfa-border);
  max-height: 440px;
}
.irfa-featured-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ═══════════════════════════════════════════
   CONTENT LAYOUT
═══════════════════════════════════════════ */
.irfa-layout {
  display: grid;
  grid-template-columns: 252px 1fr;
  gap: 40px;
  max-width: var(--irfa-max);
  margin: 48px auto 0;
  padding: 0 32px 80px;
  align-items: start;
}

/* ═══════════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════════ */
.irfa-sidebar { position: relative; }
.irfa-sidebar-sticky { position: sticky; top: 90px; }
.irfa-toc-box {
  background: var(--irfa-surface);
  border: 1px solid var(--irfa-border);
  border-radius: var(--irfa-r-lg); overflow: hidden; margin-bottom: 14px;
}
.irfa-toc-head {
  display: flex; align-items: center; gap: 8px;
  padding: 13px 16px; border-bottom: 1px solid var(--irfa-border);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--irfa-text-3);
}
.irfa-toc-head .toc-dot {
  width: 6px; height: 6px; background: var(--irfa-accent);
  border-radius: 50%; box-shadow: 0 0 6px var(--irfa-accent);
}
.irfa-toc-links { padding: 8px 0; }
.irfa-toc-link {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.82rem; line-height: 1.45;
  color: var(--irfa-text-2); text-decoration: none;
  padding: 8px 16px; border-left: 2px solid transparent;
  transition: all 0.18s;
}
.irfa-toc-link::before {
  content: ''; width: 4px; height: 4px;
  background: var(--irfa-text-3); border-radius: 50%; flex-shrink: 0; transition: all 0.18s;
}
.irfa-toc-link:hover {
  color: var(--irfa-text); background: var(--irfa-elevated);
  border-left-color: var(--irfa-border);
}
.irfa-toc-link:hover::before { background: var(--irfa-accent); }
.irfa-toc-link.active {
  color: var(--irfa-accent); font-weight: 700;
  border-left-color: var(--irfa-accent);
  background: var(--irfa-accent-glow);
}
.irfa-toc-link.active::before { background: var(--irfa-accent); box-shadow: 0 0 6px var(--irfa-accent); }
/* Sidebar CTA */
.irfa-side-cta {
  background: var(--irfa-surface); border: 1px solid var(--irfa-accent-ring);
  border-radius: var(--irfa-r-lg); padding: 20px; text-align: center;
  position: relative; overflow: hidden; margin-bottom: 12px;
}
.irfa-side-cta::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--irfa-accent), transparent);
}
.irfa-side-cta-icon { font-size: 2rem; margin-bottom: 10px; display: block; }
.irfa-side-cta p { font-size: 0.82rem; color: var(--irfa-text-2); line-height: 1.55; margin-bottom: 14px; }
.irfa-side-cta-btn {
  display: block; background: var(--irfa-accent); color: var(--irfa-text-inv);
  font-weight: 700; font-size: 0.82rem; padding: 10px; border-radius: var(--irfa-r);
  text-decoration: none; margin-bottom: 8px; transition: all 0.2s;
  box-shadow: var(--irfa-sh-acc); letter-spacing: 0.02em;
}
.irfa-side-cta-btn:hover { background: var(--irfa-accent-dim); box-shadow: 0 4px 20px rgba(64,197,152,0.3); }
.irfa-side-cta-tel {
  display: block; color: var(--irfa-accent); font-size: 0.78rem; font-weight: 600;
  text-decoration: none; opacity: 0.8; transition: opacity 0.2s;
}
.irfa-side-cta-tel:hover { opacity: 1; }
.irfa-side-updated {
  background: var(--irfa-surface); border: 1px solid var(--irfa-border);
  border-radius: var(--irfa-r); padding: 11px 14px;
  display: flex; align-items: center; gap: 9px;
  font-size: 0.74rem; color: var(--irfa-text-3);
}
.irfa-side-updated .upd-dot {
  width: 7px; height: 7px; background: var(--irfa-accent);
  border-radius: 50%; flex-shrink: 0; animation: irfa-pulse-dot 2s infinite;
}
@keyframes irfa-pulse-dot {
  0%,100% { box-shadow: 0 0 0 0 rgba(64,197,152,0.5); }
  50%      { box-shadow: 0 0 0 4px rgba(64,197,152,0); }
}

/* ═══════════════════════════════════════════
   ARTICLE CARD
═══════════════════════════════════════════ */
.irfa-main { min-width: 0; }
.irfa-article-card {
  background: var(--irfa-surface); border: 1px solid var(--irfa-border);
  border-radius: var(--irfa-r-xl); padding: 48px 52px;
  box-shadow: var(--irfa-sh); position: relative; overflow: hidden;
}
.irfa-article-card::before {
  content: ''; position: absolute; top: 0; left: 40px; right: 40px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--irfa-accent-ring), transparent);
}

/* ═══════════════════════════════════════════
   ENTRY CONTENT TYPOGRAPHY
═══════════════════════════════════════════ */
.irfa-entry-content {
  font-family: var(--irfa-font);
  font-size: 1rem; line-height: 1.85; color: #d4d4d4;
}
.irfa-entry-content h1,
.irfa-entry-content h2,
.irfa-entry-content h3,
.irfa-entry-content h4,
.irfa-entry-content h5,
.irfa-entry-content h6 {
  font-family: var(--irfa-font);
  color: var(--irfa-text); line-height: 1.25;
  scroll-margin-top: 90px;
}
.irfa-entry-content h2 {
  font-size: 1.5rem; font-weight: 900; letter-spacing: -0.02em;
  margin: 2.5em 0 0.7em; padding-bottom: 10px;
  border-bottom: 1px solid var(--irfa-border);
}
.irfa-entry-content h2:first-child { margin-top: 0; }
.irfa-entry-content h3 {
  font-size: 1.15rem; font-weight: 700; letter-spacing: -0.01em;
  margin: 2em 0 0.6em;
}
.irfa-entry-content h4 {
  font-size: 0.82rem; font-weight: 700; color: var(--irfa-text-2);
  text-transform: uppercase; letter-spacing: 0.06em; margin: 1.8em 0 0.5em;
}
.irfa-entry-content p { margin-bottom: 1.4em; }
.irfa-entry-content a {
  color: var(--irfa-accent); text-decoration: none;
  border-bottom: 1px solid var(--irfa-accent-ring); transition: all 0.2s;
}
.irfa-entry-content a:hover { color: #7ee8c8; border-bottom-color: var(--irfa-accent); }
.irfa-entry-content blockquote {
  border-left: 3px solid var(--irfa-accent); background: var(--irfa-elevated);
  margin: 2em 0; padding: 18px 22px;
  border-radius: 0 var(--irfa-r) var(--irfa-r) 0;
  color: var(--irfa-text-2); font-style: italic; font-weight: 300; position: relative;
}
.irfa-entry-content blockquote p:last-child { margin-bottom: 0; }
.irfa-entry-content ul,
.irfa-entry-content ol { padding-left: 1.6em; margin-bottom: 1.4em; }
.irfa-entry-content li { margin-bottom: 0.4em; color: #d4d4d4; }
.irfa-entry-content ul li::marker { color: var(--irfa-accent); }
.irfa-entry-content table {
  border-collapse: collapse; width: 100%; font-size: 0.9rem; margin: 1.6em 0;
  border-radius: var(--irfa-r); overflow: hidden; border: 1px solid var(--irfa-border);
}
.irfa-entry-content th {
  background: var(--irfa-elevated); color: var(--irfa-text-2); padding: 12px 16px;
  text-align: left; font-weight: 700; font-size: 0.78rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  border-bottom: 1px solid var(--irfa-border);
}
.irfa-entry-content td {
  padding: 10px 16px; border-bottom: 1px solid var(--irfa-divider); color: var(--irfa-text-2);
}
.irfa-entry-content tr:last-child td { border-bottom: none; }
.irfa-entry-content tr:hover td { background: var(--irfa-elevated); }
.irfa-entry-content img {
  max-width: 100%; height: auto; border-radius: var(--irfa-r);
  box-shadow: var(--irfa-sh); border: 1px solid var(--irfa-border);
}
.irfa-entry-content code {
  background: var(--irfa-elevated); border: 1px solid var(--irfa-border);
  border-radius: 4px; padding: 2px 6px; font-size: 0.88em; color: var(--irfa-accent);
}
.irfa-entry-content pre {
  background: #111; border: 1px solid var(--irfa-border);
  border-radius: var(--irfa-r); padding: 20px 24px; overflow-x: auto;
  font-size: 0.88rem; margin: 1.5em 0;
}
.irfa-entry-content pre code { background: none; border: none; padding: 0; font-size: inherit; }
.irfa-entry-content hr {
  border: none; height: 1px;
  background: linear-gradient(90deg, transparent, var(--irfa-border), transparent);
  margin: 2.5em 0;
}

/* ═══════════════════════════════════════════
   POST FOOTER
═══════════════════════════════════════════ */
.irfa-post-footer {
  margin-top: 48px; padding-top: 36px; border-top: 1px solid var(--irfa-border);
}
.irfa-tags {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 36px;
}
.irfa-tags-label {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--irfa-text-3);
}
.irfa-tag {
  display: inline-block; background: var(--irfa-elevated); border: 1px solid var(--irfa-border);
  color: var(--irfa-text-2); font-size: 0.78rem; font-weight: 600;
  padding: 4px 12px; border-radius: 100px; text-decoration: none; transition: all 0.18s;
}
.irfa-tag:hover { border-color: var(--irfa-accent-ring); color: var(--irfa-accent); background: var(--irfa-accent-glow); }
.irfa-author-card {
  display: flex; gap: 18px; background: var(--irfa-elevated); border: 1px solid var(--irfa-border);
  border-radius: var(--irfa-r-lg); padding: 24px; margin-bottom: 32px; align-items: flex-start;
}
.irfa-author-av {
  width: 60px; height: 60px; border-radius: 50%;
  background: linear-gradient(135deg, var(--irfa-accent-dim), var(--irfa-accent));
  border: 2px solid var(--irfa-accent-ring);
  box-shadow: 0 0 14px rgba(64,197,152,0.2);
  flex-shrink: 0; overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.irfa-author-av img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.irfa-author-by {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--irfa-text-3); margin-bottom: 2px;
}
.irfa-author-name { font-size: 1rem; font-weight: 700; color: var(--irfa-text); margin-bottom: 6px; }
.irfa-author-bio { font-size: 0.84rem; color: var(--irfa-text-2); line-height: 1.6; margin-bottom: 10px; }
.irfa-rto-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--irfa-accent-glow); border: 1px solid var(--irfa-accent-ring);
  color: var(--irfa-accent); font-size: 0.7rem; font-weight: 700;
  padding: 3px 10px; border-radius: 4px; letter-spacing: 0.06em;
}
.irfa-post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.irfa-nav-link {
  background: var(--irfa-elevated); border: 1px solid var(--irfa-border);
  border-radius: var(--irfa-r-lg); padding: 18px 20px; text-decoration: none;
  transition: all 0.22s; display: flex; flex-direction: column; gap: 5px;
}
.irfa-nav-link:hover {
  border-color: var(--irfa-accent-ring); background: var(--irfa-accent-glow);
  transform: translateY(-2px); box-shadow: 0 4px 20px rgba(64,197,152,0.1);
}
.irfa-nav-next { text-align: right; align-items: flex-end; }
.irfa-nav-direction {
  display: flex; align-items: center; gap: 5px;
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--irfa-accent);
}
.irfa-nav-next .irfa-nav-direction { justify-content: flex-end; }
.irfa-nav-title { font-size: 0.85rem; color: var(--irfa-text-2); line-height: 1.4; font-weight: 600; }

/* ═══════════════════════════════════════════
   BOTTOM CTA
═══════════════════════════════════════════ */
.irfa-bottom-cta {
  position: relative; background: var(--irfa-surface);
  border-top: 1px solid var(--irfa-border); padding: 60px 32px; overflow: hidden;
}
.irfa-bottom-cta::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 20% 50%, rgba(64,197,152,0.06), transparent),
    radial-gradient(ellipse 40% 60% at 80% 30%, rgba(19,82,162,0.05), transparent);
}
.irfa-bottom-cta::after {
  content: ''; position: absolute; top: 0; left: 15%; right: 15%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--irfa-accent), transparent); opacity: 0.6;
}
.irfa-cta-inner {
  position: relative; z-index: 1;
  max-width: var(--irfa-max); margin: 0 auto;
  display: flex; align-items: center; gap: 40px; flex-wrap: wrap;
}
.irfa-cta-glyph { font-size: 4rem; line-height: 1; color: var(--irfa-accent); opacity: 0.12; flex-shrink: 0; font-weight: 900; }
.irfa-cta-body { flex: 1; min-width: 220px; }
.irfa-cta-body h3 {
  font-size: 1.4rem; font-weight: 900; color: var(--irfa-text);
  margin-bottom: 8px; letter-spacing: -0.02em;
}
.irfa-cta-body p { font-size: 0.95rem; color: var(--irfa-text-2); line-height: 1.65; margin: 0; }
.irfa-cta-actions { display: flex; flex-direction: column; gap: 10px; flex-shrink: 0; }
.irfa-cta-primary {
  display: inline-block; background: var(--irfa-accent); color: var(--irfa-text-inv);
  font-weight: 700; font-size: 0.92rem; padding: 13px 28px; border-radius: var(--irfa-r);
  text-decoration: none; text-align: center; transition: all 0.22s;
  box-shadow: var(--irfa-sh-acc); letter-spacing: 0.02em;
}
.irfa-cta-primary:hover {
  background: var(--irfa-accent-dim); transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(64,197,152,0.35);
}
.irfa-cta-secondary {
  display: inline-block; background: var(--irfa-elevated); color: var(--irfa-text-2);
  font-weight: 600; font-size: 0.88rem; padding: 12px 28px; border-radius: var(--irfa-r);
  border: 1px solid var(--irfa-border); text-decoration: none; text-align: center; transition: all 0.22s;
}
.irfa-cta-secondary:hover { border-color: var(--irfa-accent-ring); color: var(--irfa-accent); background: var(--irfa-accent-glow); }

/* ═══════════════════════════════════════════
   COMMENTS
═══════════════════════════════════════════ */
.irfa-main .comments-area {
  margin-top: 48px; padding-top: 36px; border-top: 1px solid var(--irfa-border);
}
.irfa-main .comments-title {
  font-size: 1.3rem; font-weight: 900; color: var(--irfa-text); margin-bottom: 24px;
}
.irfa-main .comment-list { list-style: none; padding: 0; }
.irfa-main .comment-body {
  background: var(--irfa-elevated); border: 1px solid var(--irfa-border);
  border-radius: var(--irfa-r-lg); padding: 20px; margin-bottom: 14px;
}
.irfa-main .comment-author .fn { color: var(--irfa-text); font-weight: 700; }
.irfa-main .comment-metadata a { color: var(--irfa-text-3); font-size: 0.78rem; text-decoration: none; }
.irfa-main .comment-content p { color: var(--irfa-text-2); font-size: 0.92rem; margin-top: 8px; }
.irfa-main .comment-form input,
.irfa-main .comment-form textarea {
  background: var(--irfa-elevated) !important; border: 1px solid var(--irfa-border) !important;
  border-radius: var(--irfa-r) !important; color: var(--irfa-text) !important;
  font-family: var(--irfa-font) !important; padding: 10px 14px !important;
  width: 100%; transition: border-color 0.2s;
}
.irfa-main .comment-form input:focus,
.irfa-main .comment-form textarea:focus {
  outline: none !important; border-color: var(--irfa-accent-ring) !important;
  box-shadow: 0 0 0 3px var(--irfa-accent-glow) !important;
}
.irfa-main .comment-form label { color: var(--irfa-text-2); font-size: 0.82rem; font-weight: 700; }
.irfa-main .comment-form .submit {
  background: var(--irfa-accent); color: var(--irfa-text-inv);
  border: none; padding: 11px 24px; border-radius: var(--irfa-r);
  font-weight: 700; font-size: 0.9rem; cursor: pointer; transition: all 0.22s;
  box-shadow: var(--irfa-sh-acc);
}
.irfa-main .comment-form .submit:hover { background: var(--irfa-accent-dim); transform: translateY(-1px); }

/* ═══════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .irfa-layout { grid-template-columns: 1fr; gap: 28px; }
  .irfa-sidebar { order: -1; }
  .irfa-sidebar-sticky { position: static; }
  .irfa-toc-links { display: flex; flex-wrap: wrap; padding: 10px; gap: 4px; }
  .irfa-toc-link { border-left: none !important; border-radius: var(--irfa-r-sm, 6px); padding: 7px 12px; }
  .irfa-side-cta, .irfa-side-updated { display: none; }
}
@media (max-width: 768px) {
  .irfa-post-hero { padding: 44px 16px 64px; }
  .irfa-hero-grid, .irfa-hero-orb { display: none; }
  .irfa-featured-wrap { padding: 0 16px; margin-top: -18px; }
  .irfa-layout { padding: 0 16px 60px; margin-top: 32px; }
  .irfa-article-card { padding: 28px 20px; }
  .irfa-post-nav { grid-template-columns: 1fr; }
  .irfa-author-card { flex-direction: column; }
  .irfa-cta-inner { flex-direction: column; text-align: center; }
  .irfa-cta-glyph { display: none; }
  .irfa-cta-actions { flex-direction: row; justify-content: center; flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .irfa-post-title { font-size: 1.65rem; }
  .irfa-cta-actions { flex-direction: column; }
  .irfa-cta-primary, .irfa-cta-secondary { width: 100%; }
}