/* ================================================================
   AIShift — Insights Section
   Listing page, Article detail, Sidebar, CTAs
   ================================================================ */

/* ── INSIGHTS HERO (Listing Page) ── */
.insights-hero {
  min-height: 40vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 8rem clamp(1.5rem, 5vw, 5vw) 4rem;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 50% 60%, rgba(201, 168, 76, .06) 0%, transparent 65%),
    linear-gradient(160deg, #0B0B0F 0%, #11111A 60%, #0D0D14 100%);
  border-bottom: 1px solid var(--mist);
}
.insights-hero-content {
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
}
.insights-hero-tag {
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.insights-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: .8rem;
}
.insights-hero-title em {
  font-style: italic;
  color: var(--gold);
}
.insights-hero-sub {
  font-size: 1rem;
  color: var(--white-dim);
  max-width: 520px;
  line-height: 1.8;
}

/* ── FEATURED ARTICLE (Listing Page) ── */
.insights-featured {
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 5vw, 5vw);
}
.insights-featured-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 3.5rem;
  background: linear-gradient(135deg, rgba(201, 168, 76, .06) 0%, transparent 55%), var(--ink-soft);
  border: 1px solid var(--mist);
  border-left: 3px solid var(--gold);
  text-decoration: none;
  transition: border-color .3s var(--ease-out), background .3s var(--ease-out);
}
.insights-featured-inner:hover {
  border-color: var(--gold);
  background: linear-gradient(135deg, rgba(201, 168, 76, .09) 0%, transparent 55%), var(--ink-soft);
}
.insights-featured-tag {
  display: inline-block;
  font-size: .6rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  font-weight: 500;
  padding: .25rem .7rem;
  margin-bottom: 1.2rem;
}
.insights-featured-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 300;
  line-height: 1.15;
  margin-bottom: 1.2rem;
  color: var(--white);
}
.insights-featured-title em {
  font-style: italic;
  color: var(--gold);
}
.insights-featured-excerpt {
  font-size: .92rem;
  color: var(--white-dim);
  line-height: 1.85;
  margin-bottom: 1.5rem;
}
.insights-featured-meta {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .08em;
  color: var(--silver);
}
.insights-featured-meta .meta-sep {
  width: 1px;
  height: 12px;
  background: var(--mist);
}
.insights-featured-side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
}
.insights-featured-label {
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-dim);
}
.insights-featured-ornament {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--gold-dim), transparent);
}
.insights-featured-cta {
  font-size: .72rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--gold);
  text-decoration: none;
  transition: color .25s;
}
.insights-featured-cta:hover {
  color: var(--gold-light);
}

/* ── INSIGHTS LISTING ── */
.insights-listing {
  padding: 0 clamp(1.5rem, 5vw, 5vw) clamp(3rem, 6vw, 5rem);
  background: var(--ink);
}
.insights-listing-inner {
  max-width: var(--container);
  margin: 0 auto;
}
.insights-listing-header {
  margin-bottom: 2.5rem;
}
.insights-listing-label {
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-dim);
  margin-bottom: .5rem;
}
.insights-listing-subtitle {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--white-dim);
}
.insights-listing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}
.insights-listing-card {
  background: var(--ink-soft);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: background .3s var(--ease-out);
  border-bottom: 2px solid transparent;
}
.insights-listing-card:hover {
  background: var(--mist);
  border-bottom-color: var(--gold);
}
.insights-listing-card .insight-tag {
  display: inline-block;
  font-size: .6rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  font-weight: 500;
  padding: .25rem .7rem;
  margin-bottom: 1.2rem;
  align-self: flex-start;
}
.insights-listing-card .insight-tag.guia {
  background: rgba(201, 168, 76, .15);
  color: var(--gold);
}
.insights-listing-card .insight-tag.pesquisa {
  background: rgba(100, 149, 237, .15);
  color: #6495ED;
}
.insights-listing-card .insight-tag.perspectiva {
  background: rgba(152, 195, 121, .15);
  color: #98C379;
}
.insights-listing-card h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--white);
}
.insights-listing-card p {
  font-size: .88rem;
  color: var(--white-dim);
  line-height: 1.85;
  flex: 1;
}
.insights-listing-card .insight-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.8rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--mist);
}
.insights-listing-card .insight-date {
  font-family: var(--font-mono);
  font-size: .62rem;
  color: var(--mist-text);
  letter-spacing: .08em;
}
.insights-listing-card .insight-link {
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold-dim);
  text-decoration: none;
  transition: color .25s;
}
.insights-listing-card .insight-link:hover {
  color: var(--gold);
}

/* ── INSIGHTS NEWSLETTER (Listing Page) ── */
.insights-newsletter {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 5vw) clamp(4rem, 8vw, 6rem);
}
.insights-newsletter-inner {
  padding: 3.5rem 4rem;
  background: linear-gradient(135deg, rgba(201, 168, 76, .07) 0%, transparent 55%), var(--ink-soft);
  border: 1px solid var(--mist);
  text-align: center;
}
.insights-newsletter-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: .6rem;
}
.insights-newsletter-inner h2 em {
  font-style: italic;
  color: var(--gold);
}
.insights-newsletter-sub {
  font-size: .9rem;
  color: var(--white-dim);
  line-height: 1.8;
  max-width: 460px;
  margin: 0 auto 1.8rem;
}
.insights-newsletter-form {
  display: flex;
  gap: .6rem;
  max-width: 440px;
  margin: 0 auto 1rem;
}
.insights-newsletter-form input {
  flex: 1;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--mist);
  color: var(--white);
  font-family: var(--font-body);
  font-size: .85rem;
  padding: .8rem 1.2rem;
  transition: border-color .25s;
}
.insights-newsletter-form input::placeholder { color: var(--mist-text); }
.insights-newsletter-form input:focus {
  outline: none;
  border-color: var(--gold-dim);
}
.insights-newsletter-form button {
  background: var(--gold);
  color: var(--ink);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .15em;
  text-transform: uppercase;
  padding: .8rem 1.8rem;
  border: none;
  cursor: pointer;
  transition: background .25s;
  white-space: nowrap;
}
.insights-newsletter-form button:hover { background: var(--gold-light); }
.insights-newsletter-privacy {
  font-size: .68rem;
  color: var(--mist-text);
  line-height: 1.7;
}

/* ── READING PROGRESS BAR ── */
.article-reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  z-index: 200;
  transition: width .1s linear;
  pointer-events: none;
}

/* ── ARTICLE PAGE ── */
.article-page {
  padding-top: 5rem;
}

/* ── ARTICLE BREADCRUMB ── */
.article-breadcrumb {
  padding: 2rem clamp(1.5rem, 5vw, 5vw) 0;
  max-width: var(--container);
  margin: 0 auto;
}
.article-breadcrumb nav {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.article-breadcrumb a {
  color: var(--silver);
  text-decoration: none;
  transition: color .25s;
}
.article-breadcrumb a:hover {
  color: var(--gold);
}
.article-breadcrumb .breadcrumb-sep {
  color: var(--mist-text);
}
.article-breadcrumb .breadcrumb-current {
  color: var(--white-dim);
}

/* ── ARTICLE HEADER ── */
.article-header {
  padding: 3rem clamp(1.5rem, 5vw, 5vw) 2rem;
  max-width: var(--container);
  margin: 0 auto;
  border-bottom: 1px solid var(--mist);
}
.article-header .article-tag {
  display: inline-block;
  font-size: .6rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  font-weight: 500;
  padding: .3rem .8rem;
  margin-bottom: 1.5rem;
}
.article-tag.guia {
  background: rgba(201, 168, 76, .15);
  color: var(--gold);
}
.article-tag.pesquisa {
  background: rgba(100, 149, 237, .15);
  color: #6495ED;
}
.article-tag.perspectiva {
  background: rgba(152, 195, 121, .15);
  color: #98C379;
}
.article-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 300;
  line-height: 1.15;
  max-width: 780px;
  margin-bottom: 1.5rem;
}
.article-header h1 em {
  font-style: italic;
  color: var(--gold);
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.article-meta-item {
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .1em;
  color: var(--silver);
}
.article-meta-sep {
  width: 1px;
  height: 14px;
  background: var(--mist);
}

/* ── ARTICLE LAYOUT ── */
.article-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  max-width: var(--container);
  margin: 0 auto;
  padding: 3rem clamp(1.5rem, 5vw, 5vw) 5rem;
}

/* ── ARTICLE BODY ── */
.article-body > p:first-of-type::first-letter {
  font-family: var(--font-display);
  float: left;
  font-size: 3.6em;
  line-height: .8;
  padding-right: .12em;
  padding-top: .06em;
  color: var(--gold);
  font-weight: 400;
}
.article-body h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 400;
  line-height: 1.25;
  margin-top: 3rem;
  margin-bottom: 1.2rem;
  color: var(--white);
  position: relative;
  padding-top: 1.2rem;
}
.article-body h2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--gold);
}
.article-body h2:first-child {
  margin-top: 0;
}
.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.3;
  margin-top: 2rem;
  margin-bottom: .8rem;
  color: var(--white);
}
.article-body p {
  font-size: .95rem;
  color: var(--white-dim);
  line-height: 1.95;
  margin-bottom: 1.4rem;
}
.article-body p strong {
  color: var(--white);
  font-weight: 400;
}
.article-body blockquote {
  margin: 2rem 0;
  padding: 1.5rem 2rem 1.5rem 3rem;
  border-left: 2px solid var(--gold);
  background: rgba(201, 168, 76, .04);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  font-weight: 300;
  line-height: 1.6;
  color: var(--white);
  position: relative;
}
.article-body blockquote::before {
  content: '\201C';
  position: absolute;
  top: .2rem;
  left: .6rem;
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--gold-dim);
  line-height: 1;
  opacity: .6;
}
.blockquote-source {
  display: block;
  margin-top: .6rem;
  font-family: var(--font-mono);
  font-size: .65rem;
  font-style: normal;
  letter-spacing: .1em;
  color: var(--silver);
}
.article-body ul,
.article-body ol {
  margin-bottom: 1.4rem;
  padding-left: 1.5rem;
}
.article-body ul {
  list-style: none;
}
.article-body ul li {
  position: relative;
  padding-left: 1.2rem;
  font-size: .95rem;
  color: var(--white-dim);
  line-height: 1.85;
  margin-bottom: .6rem;
}
.article-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .7rem;
  width: 5px;
  height: 5px;
  background: var(--gold);
  border-radius: 50%;
}
.article-body ol {
  list-style: decimal;
}
.article-body ol li {
  font-size: .95rem;
  color: var(--white-dim);
  line-height: 1.85;
  margin-bottom: .6rem;
}
.article-body ol li::marker {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: .85rem;
}

/* ── DATA CALLOUT ── */
.data-callout {
  margin: 2rem 0;
  padding: 1.8rem 2rem;
  background: var(--ink-soft);
  border: 1px solid var(--mist);
  border-top: 2px solid var(--gold);
  text-align: center;
}
.data-callout-number {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 300;
  color: var(--gold);
  line-height: 1;
  margin-bottom: .4rem;
}
.data-callout-label {
  font-size: .88rem;
  color: var(--white-dim);
  line-height: 1.6;
  margin-bottom: .3rem;
}
.data-callout-source {
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .1em;
  color: var(--mist-text);
}

/* Key Takeaways Box */
.key-takeaways {
  margin: 2.5rem 0;
  padding: 2rem 2.5rem;
  background: var(--ink-soft);
  border: 1px solid var(--mist);
  border-left: 3px solid var(--gold);
  position: relative;
}
.key-takeaways::after {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 20px;
  height: 20px;
  border-top: 2px solid var(--gold-dim);
  border-right: 2px solid var(--gold-dim);
  pointer-events: none;
  opacity: .5;
}
.key-takeaways-title {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.key-takeaways ul {
  margin-bottom: 0;
  padding-left: 0;
}
.key-takeaways ul li {
  padding-left: 1.4rem;
  margin-bottom: .8rem;
}
.key-takeaways ul li:last-child {
  margin-bottom: 0;
}

/* ── AUTHOR BOX ── */
.article-author-box {
  margin: 3rem 0 0;
  padding: 1.8rem 2rem;
  background: var(--ink-soft);
  border: 1px solid var(--mist);
  border-left: 3px solid var(--gold);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.article-author-box-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(201, 168, 76, .15), rgba(201, 168, 76, .05));
  border: 1px solid var(--gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.article-author-box-icon svg {
  width: 20px;
  height: 20px;
  color: var(--gold);
}
.article-author-box-info {
  flex: 1;
}
.article-author-box-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--white);
  margin-bottom: .2rem;
}
.article-author-box-role {
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--silver);
}

/* ── ARTICLE SIDEBAR ── */
.article-sidebar {
  position: sticky;
  top: 6rem;
  align-self: start;
}
.sidebar-section {
  margin-bottom: 2.5rem;
}
.sidebar-title {
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--mist);
}
.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: .8rem;
}
.sidebar-link {
  text-decoration: none;
  padding: .8rem 1rem;
  background: var(--ink-soft);
  border: 1px solid var(--mist);
  transition: all .25s var(--ease-out);
}
.sidebar-link:hover {
  border-color: var(--gold-dim);
  background: var(--mist);
}
.sidebar-link-tag {
  font-size: .55rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: .3rem;
}
.sidebar-link-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.35;
  color: var(--white-dim);
}
.sidebar-link:hover .sidebar-link-title {
  color: var(--white);
}

/* ── SIDEBAR SHARE ── */
.sidebar-share {
  display: flex;
  gap: .6rem;
}
.sidebar-share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--ink-soft);
  border: 1px solid var(--mist);
  color: var(--silver);
  cursor: pointer;
  transition: all .25s var(--ease-out);
  text-decoration: none;
}
.sidebar-share-btn:hover {
  border-color: var(--gold-dim);
  color: var(--gold);
}
.sidebar-share-btn svg {
  width: 16px;
  height: 16px;
}
.sidebar-share-btn.copied {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── SIDEBAR NEWSLETTER ── */
.sidebar-newsletter {
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(201, 168, 76, .06) 0%, transparent 60%), var(--ink-soft);
  border: 1px solid var(--mist);
}
.sidebar-newsletter-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: .5rem;
  color: var(--white);
}
.sidebar-newsletter-text {
  font-size: .78rem;
  color: var(--white-dim);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.sidebar-newsletter-form {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.sidebar-newsletter-form input {
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--mist);
  color: var(--white);
  font-family: var(--font-body);
  font-size: .82rem;
  padding: .6rem .8rem;
  transition: border-color .25s;
}
.sidebar-newsletter-form input::placeholder { color: var(--mist-text); }
.sidebar-newsletter-form input:focus {
  outline: none;
  border-color: var(--gold-dim);
}
.sidebar-newsletter-form button {
  background: var(--gold);
  color: var(--ink);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .7rem 1rem;
  border: none;
  cursor: pointer;
  transition: background .25s;
}
.sidebar-newsletter-form button:hover { background: var(--gold-light); }

/* Sidebar CTA Box */
.sidebar-cta {
  padding: 2rem;
  background: linear-gradient(135deg, rgba(201, 168, 76, .08) 0%, transparent 60%), var(--ink-soft);
  border: 1px solid var(--mist);
  text-align: center;
}
.sidebar-cta-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: .8rem;
  color: var(--white);
}
.sidebar-cta-text {
  font-size: .82rem;
  color: var(--white-dim);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.sidebar-cta .btn-primary {
  display: block;
  text-align: center;
  font-size: .7rem;
  padding: .8rem 1.6rem;
}

/* ── ARTICLE FOOTER CTA ── */
.article-footer-cta {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 5vw) 5rem;
}
.article-footer-cta-inner {
  padding: 4rem;
  background: linear-gradient(135deg, rgba(201, 168, 76, .07) 0%, transparent 55%), var(--ink-soft);
  border: 1px solid var(--mist);
  text-align: center;
}
.article-footer-cta-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: .8rem;
}
.article-footer-cta-inner h2 em {
  font-style: italic;
  color: var(--gold);
}
.article-footer-cta-inner p {
  font-size: .92rem;
  color: var(--white-dim);
  max-width: 500px;
  margin: 0 auto 2rem;
  line-height: 1.8;
}
.article-footer-cta-nda {
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: .62rem;
  color: var(--silver);
  letter-spacing: .1em;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .insights-featured-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2.5rem;
  }
  .insights-listing-grid {
    grid-template-columns: 1fr;
  }
  .article-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .article-sidebar {
    position: static;
  }
}
@media (max-width: 700px) {
  .insights-hero {
    min-height: 30vh;
    padding-top: 7rem;
  }
  .insights-featured-inner {
    padding: 1.8rem;
  }
  .insights-featured-title {
    font-size: clamp(1.5rem, 5vw, 2rem);
  }
  .article-header h1 {
    font-size: clamp(1.6rem, 6vw, 2.2rem);
  }
  .article-meta {
    gap: .8rem;
  }
  .article-meta-sep {
    display: none;
  }
  .article-footer-cta-inner {
    padding: 2.5rem 1.5rem;
  }
  .key-takeaways {
    padding: 1.5rem;
  }
  .article-author-box {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  .data-callout {
    padding: 1.5rem;
  }
  .insights-newsletter-inner {
    padding: 2.5rem 1.5rem;
  }
  .insights-newsletter-form {
    flex-direction: column;
  }
  .insights-newsletter-form button {
    width: 100%;
  }
}