/*
 * Q-Dash AI Center — Dedicated Stylesheet
 * /insights/ai/assets/ai-center.css
 * Standalone — no conflicts with existing Insights CSS.
 */

/* ── Progress Bar ────────────────────────────────────────────── */
#ai-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--or), #FF9A6C, var(--or));
  background-size: 200% 100%;
  animation: ai-bar-shimmer 2s linear infinite;
  z-index: 9999;
  transition: width 0.1s ease;
  pointer-events: none;
}
@keyframes ai-bar-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: 0 0; }
}

/* ── AI Hero ─────────────────────────────────────────────────── */
.ai-hero {
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
}
.ai-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 900px 500px at 30% -80px, rgba(224,92,42,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 600px 400px at 80% 120%, rgba(96,165,250,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.ai-hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}
.ai-hero h1 {
  font-size: clamp(28px, 5vw, 58px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff 30%, var(--or) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ai-hero p {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--tx2);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
/* Particles canvas */
#ai-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.4;
}

/* ── Stats Bar ───────────────────────────────────────────────── */
.ai-stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--bd);
  border: 1px solid var(--bd);
  border-radius: 16px;
  overflow: hidden;
  margin: 40px 0;
}
.ai-stat-item {
  background: var(--cd);
  padding: 28px 20px;
  text-align: center;
  transition: background 0.25s;
}
.ai-stat-item:hover { background: rgba(224,92,42,0.06); }
.ai-stat-num {
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 900;
  color: var(--or);
  line-height: 1;
  display: block;
}
.ai-stat-label {
  font-size: 12px;
  color: var(--tx2);
  margin-top: 6px;
  display: block;
}
.ai-stat-icon {
  font-size: 20px;
  color: var(--or);
  margin-bottom: 10px;
  display: block;
  opacity: 0.7;
}
@media (max-width: 640px) {
  .ai-stats-bar { grid-template-columns: 1fr 1fr; }
}

/* ── Knowledge Cards (flip effect) ──────────────────────────── */
.ai-knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.ai-k-card {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: center;
  text-decoration: none;
  color: var(--tx);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.ai-k-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(224,92,42,0.04));
  opacity: 0;
  transition: opacity 0.3s;
}
.ai-k-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: var(--bd-h);
  box-shadow: 0 20px 48px rgba(0,0,0,0.3);
}
.ai-k-card:hover::before { opacity: 1; }
.ai-k-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
  flex-shrink: 0;
}
.ai-k-name {
  font-size: 14px;
  font-weight: 800;
  line-height: 1.2;
}
.ai-k-maker {
  font-size: 11px;
  color: var(--tx3);
}
.ai-k-desc {
  font-size: 12px;
  color: var(--tx2);
  line-height: 1.5;
}
.ai-k-arrow {
  font-size: 12px;
  color: var(--or);
  opacity: 0;
  transition: opacity 0.2s;
}
.ai-k-card:hover .ai-k-arrow { opacity: 1; }

/* ── Business Solution Cards ─────────────────────────────────── */
.ai-biz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.ai-biz-card {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 14px;
  padding: 22px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: all 0.25s;
}
.ai-biz-card:hover {
  border-color: rgba(224,92,42,0.4);
  background: rgba(224,92,42,0.03);
  transform: translateX(-3px);
}
[dir='ltr'] .ai-biz-card:hover { transform: translateX(3px); }
.ai-biz-icon {
  width: 42px;
  height: 42px;
  background: rgba(224,92,42,0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--or);
  flex-shrink: 0;
}
.ai-biz-name {
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 4px;
}
.ai-biz-desc {
  font-size: 12px;
  color: var(--tx2);
  line-height: 1.5;
}

/* ── Industry Cards ──────────────────────────────────────────── */
.ai-industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}
.ai-ind-card {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 12px;
  padding: 20px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all 0.25s;
  cursor: default;
}
.ai-ind-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}
.ai-ind-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
}
.ai-ind-name {
  font-size: 13px;
  font-weight: 700;
}

/* ── Free Tools Cards ────────────────────────────────────────── */
.ai-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.ai-tool-card {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 16px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.ai-tool-card::after {
  content: 'FREE';
  position: absolute;
  top: 16px;
  left: 16px;
  background: linear-gradient(135deg, var(--or), #FF9A6C);
  color: #fff;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 1px;
  padding: 3px 8px;
  border-radius: 4px;
}
[dir='ltr'] .ai-tool-card::after { right: 16px; left: auto; }
.ai-tool-card:hover {
  border-color: rgba(224,92,42,0.5);
  box-shadow: 0 16px 40px rgba(224,92,42,0.1);
  transform: translateY(-4px);
}
.ai-tool-icon-wrap {
  width: 56px;
  height: 56px;
  background: rgba(224,92,42,0.1);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--or);
}
.ai-tool-name {
  font-size: 16px;
  font-weight: 800;
}
.ai-tool-desc {
  font-size: 13px;
  color: var(--tx2);
  line-height: 1.6;
  flex: 1;
}
.ai-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--or);
  text-decoration: none;
  padding: 8px 0;
  border-top: 1px solid var(--bd);
  transition: gap 0.2s;
}
.ai-tool-btn:hover { gap: 10px; }

/* ── Case Study Cards ────────────────────────────────────────── */
.ai-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.ai-case-card {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.25s;
  position: relative;
}
.ai-case-card:hover {
  border-color: rgba(224,92,42,0.4);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.2);
}
.ai-case-icon {
  width: 48px;
  height: 48px;
  background: rgba(224,92,42,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--or);
}
.ai-case-title {
  font-size: 16px;
  font-weight: 800;
}
.ai-case-desc {
  font-size: 13px;
  color: var(--tx2);
  line-height: 1.6;
  flex: 1;
}
.ai-case-result {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.25);
  color: #10B981;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 20px;
}

/* ── FAQ Accordion ───────────────────────────────────────────── */
.ai-faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 860px;
  margin: 0 auto;
}
.ai-faq-item {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.ai-faq-item.open { border-color: rgba(224,92,42,0.4); }
.ai-faq-q {
  width: 100%;
  background: none;
  border: none;
  text-align: inherit;
  color: var(--tx);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  line-height: 1.5;
}
.ai-faq-q:hover { color: var(--or); }
.ai-faq-chevron {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: 1px solid var(--bd);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--or);
  transition: transform 0.3s, background 0.2s;
}
.ai-faq-item.open .ai-faq-chevron {
  transform: rotate(180deg);
  background: rgba(224,92,42,0.1);
}
.ai-faq-a {
  display: none;
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--tx2);
  line-height: 1.8;
  border-top: 1px solid var(--bd);
}
.ai-faq-item.open .ai-faq-a { display: block; }

/* ── Glossary ─────────────────────────────────────────────────── */
.ai-glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.ai-glossary-card {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s, transform 0.2s;
}
.ai-glossary-card:hover {
  border-color: rgba(224,92,42,0.4);
  transform: translateY(-2px);
}
.ai-glossary-term {
  font-size: 13px;
  font-weight: 900;
  color: var(--or);
  font-family: monospace;
}
.ai-glossary-def {
  font-size: 12px;
  color: var(--tx2);
  line-height: 1.6;
}

/* ── AI Nav Cards (section nav grid) ─────────────────────────── */
.ai-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.ai-nav-card {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 14px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  text-decoration: none;
  color: var(--tx);
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ai-nav-card:hover {
  border-color: rgba(224,92,42,0.5);
  background: rgba(224,92,42,0.04);
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(224,92,42,0.1);
  color: var(--or);
}
.ai-nav-card i {
  font-size: 22px;
  color: var(--or);
}
.ai-nav-card-name {
  font-size: 13px;
  font-weight: 800;
}
.ai-nav-card-desc {
  font-size: 11px;
  color: var(--tx3);
  line-height: 1.4;
}

/* ── Big CTA Block ────────────────────────────────────────────── */
.ai-cta-big {
  background: linear-gradient(135deg, rgba(224,92,42,0.08) 0%, rgba(224,92,42,0.02) 100%);
  border: 1px solid rgba(224,92,42,0.25);
  border-radius: 24px;
  padding: 56px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.ai-cta-big::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(224,92,42,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.ai-cta-badge {
  display: inline-block;
  background: rgba(224,92,42,0.1);
  border: 1px solid rgba(224,92,42,0.25);
  color: var(--or);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.ai-cta-big h2 {
  font-size: clamp(22px, 3.5vw, 38px);
  font-weight: 900;
  margin-bottom: 14px;
}
.ai-cta-big p {
  color: var(--tx2);
  font-size: 15px;
  max-width: 540px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.ai-cta-inline {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}
.ai-cta-inline .btn-row {
  justify-content: center;
}

/* ── Related Services ─────────────────────────────────────────── */
.ai-services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.ai-service-link {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--tx);
  font-size: 14px;
  font-weight: 700;
  transition: all 0.22s;
}
.ai-service-link i {
  color: var(--or);
  font-size: 18px;
  flex-shrink: 0;
}
.ai-service-link:hover {
  border-color: rgba(224,92,42,0.4);
  color: var(--or);
  background: rgba(224,92,42,0.04);
  transform: translateX(-3px);
}
[dir='ltr'] .ai-service-link:hover { transform: translateX(3px); }

/* ── Scroll Reveal Animations ─────────────────────────────────── */
[data-ai-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-ai-reveal].ai-revealed {
  opacity: 1;
  transform: translateY(0);
}
[data-ai-reveal][data-delay='1'] { transition-delay: 0.1s; }
[data-ai-reveal][data-delay='2'] { transition-delay: 0.2s; }
[data-ai-reveal][data-delay='3'] { transition-delay: 0.3s; }
[data-ai-reveal][data-delay='4'] { transition-delay: 0.4s; }

/* ── Smart Search Bar ─────────────────────────────────────────── */
.ai-search-wrap {
  max-width: 640px;
  margin: 0 auto;
}
.ai-search-bar {
  display: flex;
  background: var(--cd);
  border: 2px solid var(--bd);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.ai-search-bar:focus-within { border-color: var(--or); }
.ai-search-input {
  flex: 1;
  background: none;
  border: none;
  padding: 14px 20px;
  color: var(--tx);
  font-family: inherit;
  font-size: 15px;
  outline: none;
}
.ai-search-input::placeholder { color: var(--tx3); }
.ai-search-btn {
  background: var(--or);
  border: none;
  padding: 14px 22px;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.2s;
}
.ai-search-btn:hover { background: var(--or-h); }

/* ── Sticky TOC ───────────────────────────────────────────────── */
.ai-toc {
  position: sticky;
  top: 80px;
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 14px;
  padding: 20px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}
.ai-toc h3 {
  font-size: 12px;
  font-weight: 800;
  color: var(--tx3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.ai-toc a {
  display: block;
  font-size: 13px;
  color: var(--tx2);
  text-decoration: none;
  padding: 5px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s;
}
.ai-toc a:hover,
.ai-toc a.active { color: var(--or); }

/* ── Why Q-Dash Cards ─────────────────────────────────────────── */
.ai-why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.ai-why-card {
  background: linear-gradient(135deg, var(--cd), var(--dk3));
  border: 1px solid var(--bd);
  border-radius: 18px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all 0.3s;
}
.ai-why-card:hover {
  border-color: rgba(224,92,42,0.4);
  transform: translateY(-5px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.25);
}
.ai-why-icon {
  width: 56px;
  height: 56px;
  background: rgba(224,92,42,0.1);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--or);
}
.ai-why-title {
  font-size: 16px;
  font-weight: 800;
}
.ai-why-desc {
  font-size: 13px;
  color: var(--tx2);
  line-height: 1.7;
}

/* ── Counter Animation ────────────────────────────────────────── */
.ai-counter {
  display: inline-block;
}

/* ── Sub-hero (sub-pages) ─────────────────────────────────────── */
.ai-hero.ai-sub-hero { min-height: 320px; }

/* ── Dedicated knowledge pages ───────────────────────────────── */
.ai-reading-wrap { max-width: 920px; }
.ai-content-panel {
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 16px;
  padding: 28px;
  color: var(--tx2);
  line-height: 1.9;
}
.ai-content-panel h3 {
  color: var(--tx);
  font-size: 18px;
  margin-bottom: 18px;
}
.ai-content-panel h3 i { color: var(--or); }
.ai-brand-note,
.ai-comparison-note {
  color: var(--tx3);
  font-size: 12px;
  line-height: 1.7;
  margin-top: 16px;
  text-align: center;
}
.ai-tool-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.ai-tool-list-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--cd);
  border: 1px solid var(--bd);
  border-radius: 11px;
  padding: 14px 16px;
  color: var(--tx2);
  font-size: 13px;
  line-height: 1.6;
}
.ai-tool-list-item i {
  color: var(--or);
  margin-top: 4px;
  flex-shrink: 0;
}
.ai-tool-columns > div > h2 {
  font-size: clamp(20px, 2.5vw, 28px);
  margin-bottom: 20px;
}
.ai-content-panel .ai-tool-list { grid-template-columns: 1fr; }
.ai-content-panel .ai-tool-list-item {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--bd);
  border-radius: 0;
  padding: 10px 0;
}
.ai-content-panel .ai-tool-list-item:last-child { border-bottom: 0; }
.ai-positive { border-color: rgba(16,185,129,.25); }
.ai-caution { border-color: rgba(245,158,11,.25); }
.ai-caution .ai-tool-list-item i { color: #F59E0B; }
.ai-tool-services { margin-top: 24px; }
.ai-faq-item > summary { list-style: none; }
.ai-faq-item > summary::-webkit-details-marker { display: none; }
.ai-faq-item[open] { border-color: rgba(224,92,42,.4); }
.ai-faq-item[open] .ai-faq-chevron {
  transform: rotate(180deg);
  background: rgba(224,92,42,.1);
}
.ai-faq-item[open] .ai-faq-a { display: block; }
.ai-faq-a p { padding-top: 16px; }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 900px) {
  .ai-toc { display: none; }
}
@media (max-width: 640px) {
  .ai-hero { padding: 60px 0 40px; min-height: 400px; }
  .ai-cta-big { padding: 36px 20px; }
  .ai-knowledge-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-biz-grid { grid-template-columns: 1fr; }
  .ai-industries-grid { grid-template-columns: repeat(2, 1fr); }
}
@media print {
  #ai-progress-bar, .ai-toc { display: none !important; }
}