/* =============================================
       AI INSIGHTS — Page-specific styles
       ============================================= */

    /* ── Hero ── */
    .section-hero-insights {
      position: relative;
      padding: 140px 0 96px;
      background: transparent;
      text-align: center;
      overflow: hidden;
    }

    .section-hero-insights > .container {
      position: relative;
      z-index: 4;
    }

    .section-hero-insights .insights-hero-content h1,
    .section-hero-insights .insights-hero-content p {
      color: #FFFFFF;
    }

    .section-hero-insights .insights-hero-content p {
      color: rgba(255, 255, 255, 0.75);
    }

    .insights-hero-content {
      max-width: 720px;
      margin: 0 auto;
    }

    .insights-hero-content h1 {
      font-size: clamp(36px, 5vw, 58px);
      font-weight: 800;
      line-height: 1.1;
      letter-spacing: -0.02em;
      color: #FFFFFF;
      margin-bottom: 20px;
    }

    .insights-hero-content p {
      font-size: 18px;
      color: rgba(255, 255, 255, 0.75);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ── Featured Article Section ── */
    .section-featured {
      background: #FFFFFF;
      padding: var(--section-padding) 0;
    }

    .featured-card {
      background: #FFFFFF;
      border: 1px solid rgba(10, 15, 30, 0.07);
      border-radius: 20px;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
      box-shadow: 0 4px 32px rgba(10, 15, 30, 0.06);
      transition: box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .featured-card:hover {
      box-shadow: 0 8px 48px rgba(10, 15, 30, 0.10);
    }

    /* CSS circuit art placeholder — left panel */
    .featured-visual {
      background: #0A0F1E;
      min-height: 420px;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .circuit-bg {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(245, 158, 11, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 158, 11, 0.08) 1px, transparent 1px);
      background-size: 40px 40px;
    }

    .circuit-glow {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 240px;
      height: 240px;
      background: radial-gradient(ellipse, rgba(245, 158, 11, 0.18) 0%, transparent 70%);
      pointer-events: none;
    }

    .circuit-nodes {
      position: relative;
      z-index: 2;
      width: 200px;
      height: 200px;
    }

    /* Node rings */
    .cn-ring {
      position: absolute;
      border-radius: 50%;
      border: 1px solid rgba(245, 158, 11, 0.25);
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
    }

    .cn-ring-1 { width: 48px; height: 48px; }
    .cn-ring-2 { width: 96px; height: 96px; border-color: rgba(245, 158, 11, 0.18); }
    .cn-ring-3 { width: 148px; height: 148px; border-color: rgba(245, 158, 11, 0.10); }
    .cn-ring-4 { width: 196px; height: 196px; border-color: rgba(245, 158, 11, 0.06); }

    /* Center dot */
    .cn-center {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 16px rgba(245, 158, 11, 0.6);
    }

    /* Satellite dots */
    .cn-dot {
      position: absolute;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: rgba(245, 158, 11, 0.7);
    }

    /* Lines from center */
    .cn-line {
      position: absolute;
      top: 50%;
      left: 50%;
      height: 1px;
      background: linear-gradient(90deg, rgba(245,158,11,0.5), rgba(245,158,11,0.05));
      transform-origin: left center;
    }

    /* Line / dot positions */
    .cn-line-1  { width: 64px; transform: rotate(30deg); }
    .cn-line-2  { width: 56px; transform: rotate(120deg); }
    .cn-line-3  { width: 72px; transform: rotate(210deg); }
    .cn-line-4  { width: 52px; transform: rotate(300deg); }

    .cn-dot-1 { top: 30%; left: 75%; }
    .cn-dot-2 { top: 72%; left: 22%; }
    .cn-dot-3 { top: 18%; left: 35%; }
    .cn-dot-4 { top: 62%; left: 80%; }
    .cn-dot-5 { top: 80%; left: 55%; }

    /* Small connecting horizontal / vertical bars */
    .cn-bar {
      position: absolute;
      background: rgba(245, 158, 11, 0.2);
    }

    .cn-bar-h { height: 1px; }
    .cn-bar-v { width: 1px; }

    .cn-bar-1  { width: 28px; top: 30%; left: 75%; }
    .cn-bar-2  { height: 24px; top: 30%; left: calc(75% + 28px); }
    .cn-bar-3  { width: 20px; top: 62%; left: 80%; }
    .cn-bar-4  { height: 18px; top: calc(62% + 0px); left: calc(80% + 20px); }

    /* ── Featured body ── */
    .featured-body {
      padding: 48px 52px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .article-category-tag {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 100px;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.7px;
      text-transform: uppercase;
      margin-bottom: 20px;
    }

    /* Category color variants */
    .cat-strategy   { background: rgba(139, 92, 246, 0.12); color: #7C3AED; }
    .cat-voice      { background: rgba(59, 130, 246, 0.12);  color: #2563EB; }
    .cat-marketing  { background: rgba(245, 158, 11, 0.12);  color: #D97706; }
    .cat-hiring     { background: rgba(16, 185, 129, 0.12);  color: #059669; }
    .cat-implementation { background: rgba(100, 116, 139, 0.12); color: #475569; }
    .cat-copy       { background: rgba(236, 72, 153, 0.12);  color: #BE185D; }

    .featured-headline {
      font-size: clamp(22px, 2.5vw, 30px);
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.02em;
      color: var(--text-dark);
      margin-bottom: 16px;
    }

    .article-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .article-meta-sep {
      width: 3px;
      height: 3px;
      border-radius: 50%;
      background: var(--text-muted);
      flex-shrink: 0;
    }

    .featured-excerpt {
      font-size: 16px;
      color: var(--text-light);
      line-height: 1.8;
      margin-bottom: 28px;
    }

    .featured-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 20px;
    }

    .takeaway-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 100px;
      font-size: 12px;
      font-weight: 600;
      color: var(--text-dark);
      background: rgba(10, 15, 30, 0.05);
      border: 1px solid rgba(10, 15, 30, 0.08);
    }

    .takeaway-pill::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      flex-shrink: 0;
    }

    /* ── Filter Bar ── */
    .section-articles {
      background: #F5F7FA;
      padding: var(--section-padding) 0;
    }

    .filter-bar {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 56px;
    }

    .filter-tab {
      padding: 8px 20px;
      border-radius: 100px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-light);
      background: #FFFFFF;
      border: 1px solid rgba(10, 15, 30, 0.10);
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
      user-select: none;
    }

    .filter-tab:hover {
      border-color: rgba(245, 158, 11, 0.35);
      color: var(--text-dark);
      transform: translateY(-1px);
    }

    .filter-tab.active {
      background: var(--accent);
      color: var(--primary-dark);
      border-color: var(--accent);
    }

    /* ── Article Grid ── */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .article-card {
      background: #FFFFFF;
      border: 1px solid rgba(10, 15, 30, 0.07);
      border-radius: 16px;
      padding: 28px;
      display: flex;
      flex-direction: column;
      position: relative;
      will-change: transform;
      transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      overflow: hidden;
      opacity: 0;
      transform: translateY(24px);
    }

    .article-card.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* GPU-safe hover shadow via pseudo-element opacity */
    .article-card::after {
      content: '';
      position: absolute;
      inset: 0;
      border-radius: 16px;
      box-shadow: 0 12px 40px rgba(10, 15, 30, 0.10);
      opacity: 0;
      transition: opacity 0.25s ease;
      pointer-events: none;
    }

    .article-card:hover {
      transform: translateY(-3px);
    }

    .article-card:hover::after {
      opacity: 1;
    }

    .article-card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 16px;
    }

    .article-read-time {
      font-size: 12px;
      color: var(--text-muted);
      font-weight: 500;
    }

    .article-card-title {
      font-size: 18px;
      font-weight: 700;
      line-height: 1.35;
      letter-spacing: -0.01em;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .article-card-excerpt {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.75;
      flex-grow: 1;
      margin-bottom: 24px;
    }

    .article-card-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 20px;
      border-top: 1px solid rgba(10, 15, 30, 0.07);
      margin-top: auto;
    }

    .article-card-date {
      font-size: 12px;
      color: var(--text-muted);
    }

    .article-read-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: gap 0.2s ease, color 0.2s ease;
    }

    .article-read-link:hover {
      color: var(--accent-hover);
      gap: 8px;
    }

    /* ── Newsletter CTA ── */
    .section-newsletter {
      background: #FFFFFF;
      padding: var(--section-padding) 0;
    }

    .newsletter-inner {
      max-width: 560px;
      margin: 0 auto;
      text-align: center;
    }

    .newsletter-title {
      font-size: clamp(28px, 3.5vw, 40px);
      font-weight: 800;
      line-height: 1.15;
      letter-spacing: -0.02em;
      color: var(--text-dark);
      margin-bottom: 16px;
    }

    .newsletter-sub {
      font-size: 16px;
      color: var(--text-light);
      line-height: 1.75;
      margin-bottom: 36px;
    }

    .newsletter-form {
      display: flex;
      align-items: center;
      gap: 0;
      max-width: 440px;
      margin: 0 auto 12px;
      background: #F5F7FA;
      border: 1px solid rgba(10, 15, 30, 0.12);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .newsletter-form:focus-within {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.12);
    }

    .newsletter-input {
      flex: 1;
      padding: 14px 18px;
      background: transparent;
      border: none;
      outline: none;
      font-family: 'Inter', sans-serif;
      font-size: 15px;
      color: var(--text-dark);
      min-width: 0;
    }

    .newsletter-input::placeholder {
      color: var(--text-muted);
    }

    .newsletter-btn {
      padding: 12px 24px;
      background: var(--accent);
      color: var(--primary-dark);
      font-family: 'Inter', sans-serif;
      font-size: 14px;
      font-weight: 700;
      border: none;
      cursor: pointer;
      border-radius: 0 10px 10px 0;
      transition: background 0.2s ease;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .newsletter-btn:hover {
      background: var(--accent-hover);
    }

    .newsletter-fine {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* ── Related Links ── */
    .section-related {
      background: #F5F7FA;
      padding: var(--section-padding) 0;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 56px;
    }

    .related-card {
      display: flex;
      flex-direction: column;
      background: #FFFFFF;
      border: 1px solid rgba(10, 15, 30, 0.07);
      border-radius: 16px;
      padding: 32px 28px;
      text-decoration: none;
      color: inherit;
      position: relative;
      will-change: transform;
      overflow: hidden;
      transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      opacity: 0;
      transform: translateY(24px);
    }

    .related-card.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .related-card::after {
      content: '';
      position: absolute;
      inset: 0;
      border-radius: 16px;
      box-shadow: 0 12px 40px rgba(10, 15, 30, 0.08);
      opacity: 0;
      transition: opacity 0.25s ease;
      pointer-events: none;
    }

    .related-card:hover {
      transform: translateY(-3px);
    }

    .related-card:hover::after {
      opacity: 1;
    }

    .related-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      flex-shrink: 0;
    }

    .related-card-label {
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.8px;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .related-card-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 10px;
      line-height: 1.25;
    }

    .related-card-desc {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.7;
      flex-grow: 1;
      margin-bottom: 24px;
    }

    .related-card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      margin-top: auto;
      transition: gap 0.2s ease;
    }

    .related-card:hover .related-card-link {
      gap: 10px;
    }

    /* ── Animations ── */
    .anim-fade-up {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1), transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .anim-fade-up.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* ── Filter tab count badge ── */
    .filter-tab .tab-count {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-left: 6px;
      min-width: 18px;
      height: 18px;
      padding: 0 5px;
      border-radius: 100px;
      font-size: 10px;
      font-weight: 700;
      background: rgba(10, 15, 30, 0.08);
      color: var(--text-muted);
      transition: background 0.2s ease, color 0.2s ease;
      vertical-align: middle;
    }

    .filter-tab.active .tab-count {
      background: rgba(10, 15, 30, 0.18);
      color: var(--primary-dark);
    }

    /* ── Article card filter hide/show ── */
    .article-card.is-hidden {
      opacity: 0;
      transform: scale(0.97) translateY(8px);
      pointer-events: none;
    }

    .article-card.filter-transition {
      transition: opacity 0.28s cubic-bezier(0.4, 0, 0.2, 1),
                  transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* ── Newsletter error / success states ── */
    .newsletter-input.has-error {
      border-color: rgba(239, 68, 68, 0.7) !important;
      box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12) !important;
    }

    .newsletter-error-msg {
      display: none;
      font-size: 12px;
      color: #EF4444;
      margin-top: 6px;
      text-align: left;
      max-width: 440px;
      margin-left: auto;
      margin-right: auto;
    }

    .newsletter-error-msg.visible {
      display: block;
    }

    .newsletter-success {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 18px 24px;
      background: rgba(16, 185, 129, 0.08);
      border: 1px solid rgba(16, 185, 129, 0.25);
      border-radius: 12px;
      max-width: 440px;
      margin: 0 auto;
      font-size: 15px;
      font-weight: 600;
      color: #059669;
    }

    .newsletter-success svg {
      flex-shrink: 0;
    }

    /* ── Article drawer overlay ── */
    .drawer-overlay {
      position: fixed;
      inset: 0;
      background: rgba(10, 15, 30, 0.55);
      z-index: 1100;
      opacity: 0;
      transition: opacity 0.3s ease;
      pointer-events: none;
    }

    .drawer-overlay.is-open {
      opacity: 1;
      pointer-events: auto;
    }

    /* ── Article drawer panel (centered modal) ── */
    .article-drawer {
      position: fixed;
      top: 50%;
      left: 50%;
      width: 580px;
      max-width: calc(100vw - 40px);
      max-height: 85vh;
      background: #FFFFFF;
      border-radius: 20px;
      box-shadow: 0 24px 80px rgba(10, 15, 30, 0.18), 0 0 0 1px rgba(10, 15, 30, 0.05);
      z-index: 1101;
      display: flex;
      flex-direction: column;
      opacity: 0;
      transform: translate(-50%, -50%) scale(0.92);
      transition: opacity 0.3s ease, transform 0.35s cubic-bezier(0.34, 1.4, 0.64, 1);
      will-change: transform, opacity;
      overflow: hidden;
      pointer-events: none;
    }

    .article-drawer.is-open {
      opacity: 1;
      transform: translate(-50%, -50%) scale(1);
      pointer-events: auto;
    }

    .drawer-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 28px 18px;
      border-bottom: 1px solid rgba(10, 15, 30, 0.08);
      flex-shrink: 0;
    }

    .drawer-close {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      border: 1px solid rgba(10, 15, 30, 0.10);
      background: transparent;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-light);
      transition: background 0.18s ease, color 0.18s ease;
      flex-shrink: 0;
    }

    .drawer-close:hover {
      background: rgba(10, 15, 30, 0.06);
      color: var(--text-dark);
    }

    .drawer-body {
      flex: 1;
      overflow-y: auto;
      padding: 28px 28px 40px;
      overscroll-behavior: contain;
    }

    .drawer-category {
      margin-bottom: 14px;
    }

    .drawer-headline {
      font-size: clamp(20px, 2.5vw, 26px);
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.02em;
      color: var(--text-dark);
      margin-bottom: 14px;
    }

    .drawer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 28px;
      flex-wrap: wrap;
    }

    .drawer-meta-sep {
      width: 3px;
      height: 3px;
      border-radius: 50%;
      background: var(--text-muted);
      flex-shrink: 0;
    }

    .drawer-content {
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.85;
    }

    .drawer-content p + p {
      margin-top: 16px;
    }

    .drawer-content h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-dark);
      margin: 24px 0 8px;
    }

    @media (max-width: 540px) {
      .article-drawer {
        max-width: calc(100vw - 24px);
        max-height: 88vh;
        border-radius: 14px;
      }
    }

    /* ── Responsive ── */
    @media (max-width: 1024px) {
      .featured-card {
        grid-template-columns: 1fr;
      }

      .featured-visual {
        min-height: 260px;
      }

      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .articles-grid {
        grid-template-columns: 1fr;
      }

      .related-grid {
        grid-template-columns: 1fr;
      }

      .featured-body {
        padding: 32px 28px;
      }

      .filter-bar {
        gap: 6px;
      }

      .newsletter-form {
        flex-direction: column;
        border-radius: 12px;
        overflow: visible;
        background: transparent;
        border: none;
        box-shadow: none;
        gap: 12px;
      }

      .newsletter-form:focus-within {
        box-shadow: none;
      }

      .newsletter-input {
        width: 100%;
        background: #F5F7FA;
        border: 1px solid rgba(10, 15, 30, 0.12);
        border-radius: 10px;
        padding: 14px 18px;
      }

      .newsletter-btn {
        width: 100%;
        padding: 14px 24px;
        border-radius: 10px;
      }
    }

    @media (max-width: 480px) {
      .article-meta {
        flex-wrap: wrap;
        gap: 8px;
      }

      .featured-headline {
        font-size: 22px;
      }
    }