/* ELUN — Artigos (dores reais da indústria) */

body.artigos-page {
  background: var(--off-white);
}

.artigos-hero {
  padding: calc(var(--nav-height) + var(--safe-top) + 2.5rem) 0 2.5rem;
  background: linear-gradient(155deg, #0f1a14 0%, var(--black) 50%, #0a1628 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.artigos-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 65% 45% at 90% 15%, rgba(21, 82, 99, 0.28), transparent 55%),
    radial-gradient(circle at 5% 85%, rgba(13, 148, 136, 0.1), transparent 45%);
  pointer-events: none;
}

.artigos-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.artigos-hero .section-label {
  color: rgba(42, 136, 153, 0.9);
  margin-bottom: 0.75rem;
}

.artigos-hero h1 {
  font-family: var(--font-h1);
  font-size: clamp(1.875rem, 6vw, 3rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.artigos-hero-lead {
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.62);
  max-width: 640px;
}

.artigos-pain-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.artigos-pain-tag {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0.625rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.04);
}

.insight-tag--retrofit { background: rgba(21, 82, 99, 0.12); color: var(--accent); }
.insight-tag--iot { background: rgba(13, 148, 136, 0.12); color: #0d9488; }
.insight-tag--ia { background: rgba(21, 82, 99, 0.1); color: var(--accent); }
.insight-tag--erp { background: rgba(73, 80, 87, 0.1); color: var(--gray-700); }
.insight-tag--transformacao { background: rgba(176, 141, 87, 0.12); color: #9c6b2e; }
.insight-tag--em-breve { background: var(--gray-100); color: var(--gray-500); }

.artigo-card--soon {
  opacity: 0.72;
}

.artigo-card--soon .insight-card-link {
  color: var(--gray-500);
  pointer-events: none;
}

.artigo-card--soon .insight-card-link::after {
  content: " — em breve";
}

/* Artigo individual */
.artigo-breadcrumb {
  padding: 1rem 0 0;
  font-size: 0.8125rem;
  color: var(--gray-500);
}

.artigo-breadcrumb a {
  color: var(--gray-600);
  text-decoration: none;
}

.artigo-breadcrumb a:hover {
  color: var(--accent);
}

.artigo-breadcrumb span[aria-current] {
  color: var(--gray-800);
}

.artigo-single-hero {
  padding: calc(var(--nav-height) + var(--safe-top) + 1rem) 0 2rem;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
}

.artigo-single-hero-inner {
  max-width: 720px;
}

.artigo-single-hero h1 {
  font-family: var(--font-h1);
  font-size: clamp(1.75rem, 5vw, 2.625rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--black);
  margin: 0.75rem 0 1rem;
}

.artigo-single-lead {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--gray-600);
  margin-bottom: 1.25rem;
}

.artigo-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  font-size: 0.8125rem;
  color: var(--gray-500);
  padding-top: 1rem;
  border-top: 1px solid var(--gray-200);
}

.artigo-layout {
  display: grid;
  gap: 2rem;
  padding: 2rem var(--page-gutter) var(--section-py);
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .artigo-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 3rem;
    padding-left: var(--page-gutter);
    padding-right: var(--page-gutter);
  }
}

.artigo-toc {
  position: sticky;
  top: calc(var(--nav-height-scrolled) + var(--safe-top) + 1rem);
  align-self: start;
  padding: 1.25rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 2px;
}

.artigo-toc h2 {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 0.875rem;
}

.artigo-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.artigo-toc a {
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--gray-600);
  text-decoration: none;
  display: block;
}

.artigo-toc a:hover {
  color: var(--accent);
}

.artigo-content {
  max-width: 720px;
}

.artigo-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 2.5rem 0 1rem;
  scroll-margin-top: calc(var(--nav-height-scrolled) + var(--safe-top) + 5.5rem);
}

.artigo-content h2:first-child {
  margin-top: 0;
}

.artigo-content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--black);
  margin: 1.75rem 0 0.75rem;
}

.artigo-content p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--gray-700);
  margin-bottom: 1rem;
}

.artigo-content ul,
.artigo-content ol {
  margin: 0 0 1rem 1.25rem;
}

.artigo-content li {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--gray-700);
  margin-bottom: 0.4rem;
}

.artigo-content strong {
  font-weight: 600;
  color: var(--black);
}

.artigo-callout {
  margin: 1.5rem 0;
  padding: 1.25rem 1.375rem;
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  border-radius: 0 2px 2px 0;
}

.artigo-callout p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--gray-800);
}

.artigo-comparison {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0 1.5rem;
  font-size: 0.8125rem;
}

.artigo-comparison th,
.artigo-comparison td {
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--gray-200);
  text-align: left;
  vertical-align: top;
}

.artigo-comparison th {
  background: var(--gray-50);
  font-weight: 600;
  color: var(--black);
}

.artigo-comparison td {
  color: var(--gray-700);
}

.artigo-steps {
  counter-reset: artigo-step;
  list-style: none;
  margin: 1rem 0 1.5rem;
  padding: 0;
}

.artigo-steps li {
  counter-increment: artigo-step;
  position: relative;
  padding-left: 2.75rem;
  margin-bottom: 1.25rem;
}

.artigo-steps li::before {
  content: counter(artigo-step);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--white);
  background: var(--accent);
  border-radius: 50%;
}

.artigo-faq {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-200);
}

.artigo-faq h2 {
  margin-top: 0;
}

.artigo-faq-item {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--gray-100);
}

.artigo-faq-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.artigo-faq-item h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--black);
  margin: 0 0 0.5rem;
}

.artigo-faq-item p {
  margin: 0;
  font-size: 0.875rem;
}

.artigo-related {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
}

.artigo-related h2 {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}

.artigo-related ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.artigo-related a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-800);
  text-decoration: none;
}

.artigo-related a:hover {
  color: var(--accent);
}

@media (max-width: 1023px) {
  .artigo-toc {
    position: static;
  }
}