/* ==========================================================================
   FAQ & KNOWLEDGE BASE SYSTEM (faq.css)
   thomascherickal.github.io
   Interactive search, category filtering chips, animated category headers,
   grid layout, answer accordions, answer copy buttons, and unanswered query form.
   ========================================================================== */

/* Hero Metrics Bar */
    .hero-metrics-bar {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 0.85rem;
      max-width: 1200px;
      margin: 2.25rem auto 0 auto;
      padding: 0 1rem;
    }

    .metric-pill {
      background: rgba(12, 18, 33, 0.75);
      border: 1px solid rgba(56, 189, 248, 0.28);
      border-radius: 9999px;
      padding: 0.45rem 1.05rem;
      font-family: var(--font-mono);
      font-size: 0.98rem;
      color: var(--text-secondary);
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      backdrop-filter: blur(10px);
      transition: var(--transition);
    }

    .metric-pill:hover {
      border-color: var(--cyan);
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 4px 14px rgba(56, 189, 248, 0.25);
    }

    .metric-pill strong {
      color: var(--gold);
    }

    /* Interactive Search & Filter Controls */
    .faq-controls-container {
      max-width: 1320px;
      margin: 0 auto 2.5rem auto;
      padding: 0 1.5rem;
    }

    .search-box-wrapper {
      position: relative;
      max-width: 820px;
      margin: 0 auto 1.75rem auto;
    }

    .search-input {
      width: 100%;
      background: rgba(12, 18, 33, 0.95);
      border: 2px solid rgba(56, 189, 248, 0.4);
      border-radius: 12px;
      padding: 1rem 3.5rem 1rem 3.25rem;
      font-family: var(--font-body);
      font-size: 1.26rem;
      color: #ffffff;
      outline: none;
      transition: var(--transition);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
    }

    .search-input:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 24px rgba(56, 189, 248, 0.45);
    }

    .search-icon-left {
      position: absolute;
      left: 1.15rem;
      top: 50%;
      transform: translateY(-50%);
      font-size: 1.25rem;
      pointer-events: none;
      color: var(--cyan);
    }

    .search-clear-btn {
      position: absolute;
      right: 1.15rem;
      top: 50%;
      transform: translateY(-50%);
      background: transparent;
      border: none;
      color: var(--text-muted);
      font-size: 1.25rem;
      cursor: pointer;
      display: none;
      transition: color 0.2s;
    }

    .search-clear-btn:hover {
      color: var(--cyan);
    }

    /* Filter Category Chips */
    .filter-chips-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 0.65rem;
      margin-bottom: 1.5rem;
    }

    .filter-chip {
      background: rgba(12, 17, 29, 0.5);
      border: 1px solid var(--chip-accent, rgba(255, 255, 255, 0.25));
      border-radius: 8px;
      padding: 0.5rem 1rem;
      font-family: var(--font-mono);
      font-size: 0.96rem;
      color: #ffffff;
      text-decoration: none;
      cursor: pointer;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      user-select: none;
    }

    .filter-chip:hover,
    .filter-chip:focus {
      border-color: var(--chip-accent, var(--cyan));
      color: #ffffff;
      background: rgba(12, 17, 29, 0.85);
      text-decoration: none;
      transform: translateY(-1px);
      box-shadow: 0 0 12px var(--chip-accent, rgba(56, 189, 248, 0.3));
    }

    .filter-chip.active {
      background: linear-gradient(135deg, rgba(56, 189, 248, 0.25) 0%, rgba(251, 191, 36, 0.2) 100%);
      border-color: var(--chip-accent, var(--cyan));
      color: #ffffff;
      text-decoration: none;
      font-weight: 700;
      box-shadow: 0 0 16px var(--chip-accent, rgba(56, 189, 248, 0.35));
    }

    .filter-chip .chip-count {
      background: rgba(0, 0, 0, 0.45);
      padding: 0.15rem 0.45rem;
      border-radius: 4px;
      font-size: 0.86rem;
      color: #ffffff;
      border: 1px solid var(--chip-accent, rgba(255, 255, 255, 0.25));
      text-decoration: none;
    }

    /* Controls Bar: Counter & Expand/Collapse */
    .controls-meta-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      max-width: 1320px;
      margin: 0 auto;
      padding: 0 0.5rem;
      font-family: var(--font-mono);
      font-size: 1.02rem;
      color: var(--text-muted);
    }

    .view-toggles {
      display: flex;
      gap: 0.75rem;
    }

    .toggle-action-btn {
      background: transparent;
      border: 1px solid var(--border);
      color: var(--text-secondary);
      padding: 0.35rem 0.85rem;
      border-radius: 6px;
      font-family: var(--font-mono);
      font-size: 0.94rem;
      cursor: pointer;
      transition: var(--transition);
    }

    .toggle-action-btn:hover {
      border-color: var(--cyan);
      color: #ffffff;
    }

    
    /* Category Section Layout & Header */
    .faq-category-section {
      scroll-margin-top: 110px;
      margin-bottom: 3.5rem;
    }

    .faq-category-header {
      background: linear-gradient(145deg, rgba(12, 17, 29, 0.98) 0%, rgba(6, 9, 18, 0.98) 100%);
      border: 1.5px solid rgba(56, 189, 248, 0.22);
      border-left: 5px solid var(--category-accent, var(--cyan));
      border-radius: var(--radius-lg);
      padding: clamp(1.25rem, 3vw, 1.85rem) clamp(1.25rem, 3.5vw, 2.25rem);
      margin-bottom: 1.75rem;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 0, 0, 0.2);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .faq-category-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 0.5rem;
      gap: 1rem;
    }

    .faq-category-index {
      font-family: var(--font-mono);
      font-size: 0.94rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      color: var(--gold);
      text-transform: uppercase;
    }

    .faq-category-count-pill {
      font-family: var(--font-mono);
      font-size: 0.9rem;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 999px;
      padding: 0.2rem 0.65rem;
      color: var(--text-secondary);
      text-decoration: none;
      font-weight: 600;
    }

    .faq-category-title {
      font-family: var(--font-display);
      font-size: clamp(1.4rem, 2.6vw, 1.9rem);
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 0.4rem;
      display: flex;
      align-items: center;
      gap: 0.65rem;
    }

    .faq-category-icon {
      font-size: 1.5rem;
      line-height: 1;
    }

    .faq-category-desc {
      font-size: 1.13rem;
      color: var(--text-secondary);
      line-height: 1.65;
      margin: 0;
      max-width: 920px;
    }

    @keyframes catHeaderPulse {
      0% {
        box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
        transform: scale(1);
      }
      50% {
        box-shadow: 0 0 32px var(--category-accent, var(--cyan)), 0 0 16px rgba(255, 255, 255, 0.3);
        transform: scale(1.01);
      }
      100% {
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        transform: scale(1);
      }
    }

    .faq-category-header.category-highlight {
      animation: catHeaderPulse 1.6s cubic-bezier(0.16, 1, 0.3, 1);
      border-color: var(--category-accent, var(--cyan)) !important;
    }

    /* FAQ Grid & Cards */
    .faq-container {
      max-width: 1320px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(min(100%, 390px), 1fr));
      gap: 1.65rem;
      align-items: stretch;
    }

    @media (max-width: 840px) {
      .faq-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
      }
    }

    .faq-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 1.85rem 1.65rem;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    }

    .faq-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.75);
    }

    /* Glow border classes */
    .faq-card.border-gold { border: 1.5px solid var(--gold); }
    .faq-card.border-gold:hover { border-color: #ffe484; box-shadow: 0 0 28px rgba(251, 191, 36, 0.35); }

    .faq-card.border-cyan { border: 1.5px solid var(--cyan); }
    .faq-card.border-cyan:hover { border-color: #7dd3fc; box-shadow: 0 0 28px rgba(56, 189, 248, 0.35); }

    .faq-card.border-green { border: 1.5px solid var(--green); }
    .faq-card.border-green:hover { border-color: #6ee7b7; box-shadow: 0 0 28px rgba(52, 211, 153, 0.35); }

    .faq-card.border-violet { border: 1.5px solid var(--violet); }
    .faq-card.border-violet:hover { border-color: #c7d2fe; box-shadow: 0 0 28px rgba(165, 180, 252, 0.35); }

    .faq-card.border-pink { border: 1.5px solid var(--pink); }
    .faq-card.border-pink:hover { border-color: #fbcfe8; box-shadow: 0 0 28px rgba(244, 114, 182, 0.35); }

    .faq-card.border-sky { border: 1.5px solid var(--sky); }
    .faq-card.border-sky:hover { border-color: #a5f3fc; box-shadow: 0 0 28px rgba(0, 240, 255, 0.35); }

    .faq-card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 0.85rem;
      gap: 0.5rem;
    }

    .faq-category-badge {
      display: inline-block;
      padding: 0.28rem 0.75rem;
      border-radius: 6px;
      font-size: 0.89rem;
      font-family: var(--font-mono);
      font-weight: 700;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      text-decoration: none;
    }

    .faq-num-pill {
      font-family: var(--font-mono);
      font-size: 0.91rem;
      color: var(--text-muted);
      letter-spacing: 0.05em;
      text-decoration: none;
    }

    .faq-question {
      font-size: 1.22rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.95rem;
      line-height: 1.38;
    }

    .faq-answer {
      font-size: 1.15rem;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 1.25rem;
    }

    .faq-answer p {
      margin-bottom: 0.75rem;
    }

    .faq-answer p:last-child {
      margin-bottom: 0;
    }

    .faq-answer strong {
      color: var(--gold);
    }

    .faq-answer em {
      color: var(--cyan);
      font-style: normal;
    }

    .faq-bullets {
      list-style: none;
      margin: 0.85rem 0;
      padding: 0;
    }

    .faq-bullets li {
      position: relative;
      padding-left: 1.4rem;
      font-size: 1.08rem;
      color: var(--text-secondary);
      margin-bottom: 0.45rem;
      line-height: 1.55;
    }

    .faq-bullets li::before {
      content: '▹';
      position: absolute;
      left: 0;
      color: var(--cyan);
      font-size: 1.2rem;
    }

    .faq-card-footer {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 0.95rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-family: var(--font-mono);
      font-size: 0.91rem;
    }

    .faq-service-tag {
      color: var(--cyan);
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    .copy-link-btn {
      background: rgba(56, 189, 248, 0.08);
      border: 1px solid rgba(56, 189, 248, 0.3);
      color: var(--text-muted);
      border-radius: 6px;
      padding: 0.32rem 0.75rem;
      font-size: 0.72rem;
      font-family: var(--font-mono);
      font-weight: 500;
      line-height: 1.2;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      white-space: nowrap;
      cursor: pointer;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.35rem;
      flex-shrink: 0;
      box-sizing: border-box;
    }

    .copy-link-btn:hover {
      border-color: var(--cyan);
      color: #ffffff;
      background: rgba(56, 189, 248, 0.22);
      box-shadow: 0 0 10px rgba(56, 189, 248, 0.25);
    }

    /* Highlight matching search terms */
    mark.faq-highlight {
      background: rgba(251, 191, 36, 0.35);
      color: #ffffff;
      padding: 0 0.2rem;
      border-radius: 2px;
    }

    /* No search results state */
    .no-results-box {
      text-align: center;
      padding: 4rem 1.5rem;
      background: rgba(12, 18, 33, 0.6);
      border: 1px dashed var(--border);
      border-radius: var(--radius-lg);
      grid-column: 1 / -1;
      display: none;
    }

    .no-results-box h3 {
      font-size: 1.4rem;
      color: var(--gold);
      margin-bottom: 0.5rem;
    }

    .no-results-box p {
      color: var(--text-muted);
      max-width: 500px;
      margin: 0 auto 1.5rem auto;
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-family: var(--font-mono);
      font-size: 0.92rem;
      font-weight: 700;
      letter-spacing: 0.05em;
      text-decoration: none;
      padding: 0.75rem 1.5rem;
      border-radius: 8px;
      transition: var(--transition);
      cursor: pointer;
    }

    .btn-commission {
      background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
      color: #ffffff;
      border: 1px solid var(--cyan);
      box-shadow: 0 0 16px rgba(56, 189, 248, 0.3);
    }

    .btn-commission:hover {
      background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
      color: #000000;
      box-shadow: 0 0 24px rgba(56, 189, 248, 0.6);
      transform: translateY(-2px);
    }

    .btn-gold {
      background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
      color: #ffffff;
      border: 1px solid var(--gold);
      box-shadow: 0 0 16px rgba(251, 191, 36, 0.3);
    }

    .btn-gold:hover {
      background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
      color: #000000;
      box-shadow: 0 0 24px rgba(251, 191, 36, 0.6);
      transform: translateY(-2px);
    }

    /* btn-glow-gold: High-Contrast Solid Radiant Gold Button with WCAG AAA Contrast */
    .btn-glow-gold {
      background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%) !important;
      color: #060912 !important;
      font-weight: 800 !important;
      border: 4px solid #fef08a !important;
      border-radius: var(--radius) !important;
      box-shadow: 0 0 28px rgba(251, 191, 36, 0.85), 0 0 10px #fbbf24, 0 4px 15px rgba(217, 119, 6, 0.6) !important;
      text-shadow: none !important;
      letter-spacing: 0.02em !important;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      text-transform: none !important;
      white-space: normal !important;
      text-align: center !important;
      line-height: 1.35 !important;
      box-sizing: border-box !important;
      max-width: 100% !important;
    }

    .btn-glow-gold:hover {
      background: linear-gradient(135deg, #fef08a 0%, #fbbf24 50%, #f59e0b 100%) !important;
      color: #000000 !important;
      border-color: #ffffff !important;
      box-shadow: 0 0 38px rgba(251, 191, 36, 1), 0 0 16px #fbbf24, 0 6px 22px rgba(217, 119, 6, 0.7) !important;
      transform: translateY(-2px) !important;
    }

    /* gold-highlight-container: Gold Radiant Highlight Wrapper for Personal AI Actions */
    .gold-highlight-container {
      display: inline-flex;
      justify-content: center;
      align-items: center;
      gap: 1.25rem;
      flex-wrap: wrap;
      padding: 1.25rem 2rem;
      border-radius: 18px;
      background: radial-gradient(circle at 50% 50%, rgba(251, 191, 36, 0.15) 0%, rgba(251, 191, 36, 0.04) 100%);
      border: 2px solid rgba(251, 191, 36, 0.6);
      box-shadow: 0 0 35px rgba(251, 191, 36, 0.28), inset 0 0 20px rgba(251, 191, 36, 0.08);
      max-width: 100%;
      box-sizing: border-box;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .gold-highlight-container:hover {
      border-color: rgba(251, 191, 36, 0.95);
      box-shadow: 0 0 48px rgba(251, 191, 36, 0.45), inset 0 0 28px rgba(251, 191, 36, 0.15);
    }

    /* Parity Callout Banner */
    .parity-summary-banner {
      background: linear-gradient(145deg, rgba(12, 22, 40, 0.95) 0%, rgba(4, 8, 18, 0.98) 100%);
      border: 2px solid var(--cyan);
      border-radius: var(--radius-lg);
      padding: 2.75rem 2.25rem;
      margin: 3.5rem auto 1rem auto;
      max-width: 1320px;
      box-shadow: 0 12px 36px rgba(0, 0, 0, 0.7), 0 0 24px rgba(56, 189, 248, 0.2);
    }

    .parity-banner-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 2.5rem;
      align-items: center;
    }

    @media (max-width: 900px) {
      .parity-banner-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
      }
    }

    .parity-tier-badges-inline {
      display: flex;
      flex-wrap: wrap;
      gap: 0.65rem;
      margin-top: 1.25rem;
    }

    .p-tag {
      font-family: var(--font-mono);
      font-size: 0.76rem;
      padding: 0.3rem 0.65rem;
      border-radius: 4px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      background: rgba(0, 0, 0, 0.5);
    }

    /* Unanswered Question Card & Form */
    .unanswered-question-card {
      background: var(--bg-card);
      border: 1px solid var(--gold);
      border-radius: 16px;
      padding: 2.75rem 2.25rem;
      box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5), 0 0 18px rgba(251, 191, 36, 0.2);
      text-align: center;
      transition: var(--transition);
      max-width: 820px;
      margin: 0 auto;
    }

    .unanswered-question-card:hover {
      border-color: #ffe484;
      box-shadow: 0 16px 45px rgba(0, 0, 0, 0.7), 0 0 32px rgba(251, 191, 36, 0.4);
    }

    .contact-form {
      margin-top: 2rem;
      text-align: left;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.25rem;
      margin-bottom: 1.25rem;
    }

    @media (max-width: 640px) {
      .form-row {
        grid-template-columns: 1fr;
      }
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 0.45rem;
      margin-bottom: 1.25rem;
    }

    .form-label {
      font-family: var(--font-mono);
      font-size: 0.82rem;
      color: var(--cyan);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .form-input {
      background: rgba(6, 9, 18, 0.9);
      border: 1px solid rgba(56, 189, 248, 0.3);
      border-radius: 8px;
      padding: 0.75rem 1rem;
      color: #ffffff;
      font-family: var(--font-body);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
    }

    .form-input:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 12px rgba(56, 189, 248, 0.35);
    }

    .btn-full {
      width: 100%;
      justify-content: center;
    }

    .toast-notification {
      position: fixed;
      bottom: 2rem;
      left: 50%;
      transform: translateX(-50%) translateY(100px);
      background: #0c111d;
      border: 1px solid var(--cyan);
      color: #ffffff;
      padding: 0.75rem 1.5rem;
      border-radius: 8px;
      font-family: var(--font-mono);
      font-size: 0.86rem;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 16px rgba(56, 189, 248, 0.5);
      z-index: 9999;
      opacity: 0;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      pointer-events: none;
    }

    .toast-notification.show {
      transform: translateX(-50%) translateY(0);
      opacity: 1;
    }

/* ==========================================================================
   RESPONSIVE DESIGN (faq.css)
   ========================================================================== */
@media (max-width: 480px) {
  .faq-card {
    padding: 1.25rem 1rem;
  }
  .filter-chip {
    font-size: 0.89rem;
    padding: 0.35rem 0.65rem;
  }
  .controls-meta-bar {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }
}