/* ============================================================
   CVAT Brasil — artigo.css
   Estilos da página de artigo individual do blog
   ============================================================ */

/* ── HERO ─────────────────────────────────────────────────────── */
.artigo-hero {
  padding-block: var(--space-12) var(--space-10);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.artigo-hero--blue  { background: linear-gradient(135deg, #000e1f 0%, #011633 55%, #012754 100%); }
.artigo-hero--green { background: linear-gradient(135deg, #064e3b 0%, #065f46 60%, #0E9C6B 100%); }
.artigo-hero--coral { background: linear-gradient(135deg, #7c2d12 0%, #9a3412 60%, #E05C2A 100%); }

.artigo-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3Ccircle cx='10' cy='10' r='2'/%3E%3Ccircle cx='50' cy='10' r='2'/%3E%3Ccircle cx='10' cy='50' r='2'/%3E%3Ccircle cx='50' cy='50' r='2'/%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

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

/* Breadcrumb */
.artigo-breadcrumb {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--text-xs);
  color: rgba(255,255,255,.7);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}

.artigo-breadcrumb a {
  color: rgba(255,255,255,.7);
  text-decoration: none;
  transition: color var(--transition);
}
.artigo-breadcrumb a:hover { color: var(--color-white); }

/* Badge de categoria */
.artigo-categoria-badge {
  display: inline-block;
  background: rgba(255,255,255,.15);
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--radius-full);
  padding: .25rem .875rem;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

/* Título */
.artigo-hero h1 {
  color: var(--color-white);
  font-size: clamp(1.6rem, 4vw, 2.75rem);
  line-height: 1.2;
  margin-bottom: var(--space-5);
}

/* Lead */
.artigo-lead {
  font-size: var(--text-base);
  color: rgba(255,255,255,.82);
  line-height: 1.8;
  max-width: 640px;
  margin-bottom: var(--space-8);
}

/* Meta autor + data */
.artigo-meta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.artigo-autor {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.artigo-autor-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 700;
  color: var(--color-white);
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,.3);
}

.artigo-autor-nome {
  display: block;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-white);
}

.artigo-autor-cargo {
  display: block;
  font-size: var(--text-xs);
  color: rgba(255,255,255,.65);
  margin-top: 1px;
}

.artigo-meta-info {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--text-xs);
  color: rgba(255,255,255,.7);
}

/* ── LAYOUT: 2 COLUNAS ──────────────────────────────────────── */
.artigo-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  padding-block: var(--space-12);
  align-items: start;
}

@media (min-width: 960px) {
  .artigo-layout {
    grid-template-columns: 1fr 300px;
    gap: var(--space-12);
  }
}

/* ── CORPO DO ARTIGO ──────────────────────────────────────────── */
.artigo-body {
  min-width: 0; /* evita overflow em grid */
}

/* Imagem de capa */
.artigo-cover {
  margin-bottom: var(--space-10);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.artigo-cover img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.artigo-cover figcaption {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  padding: var(--space-2) var(--space-3);
  background: var(--color-gray-100);
  text-align: center;
}

/* Tipografia do conteúdo */
.artigo-body h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-gray-900);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  padding-top: var(--space-2);
  border-top: 2px solid var(--color-gray-200);
}

.artigo-body h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-gray-900);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.artigo-body p {
  font-size: var(--text-base);
  line-height: 1.85;
  color: var(--color-gray-700);
  margin-bottom: var(--space-5);
}

.artigo-body ul,
.artigo-body ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-6);
}

.artigo-body li {
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.artigo-body strong { color: var(--color-gray-900); }

.artigo-body code {
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  padding: .1em .4em;
  font-size: .9em;
  font-family: 'Courier New', monospace;
}

/* Destaque / blockquote */
.artigo-destaque {
  border-left: 4px solid var(--color-blue);
  background: var(--color-blue-light);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-5) var(--space-6);
  margin: var(--space-8) 0;
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-blue);
  line-height: 1.7;
}

/* Caixa informativa */
.artigo-info-box {
  background: #fefce8;
  border: 1px solid #fde68a;
  border-left: 4px solid #f59e0b;
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  margin: var(--space-8) 0;
}

.artigo-info-box strong {
  display: block;
  margin-bottom: var(--space-2);
  color: #92400e;
  font-size: var(--text-sm);
}

.artigo-info-box p {
  margin-bottom: 0;
  font-size: var(--text-sm);
  color: #78350f;
}

/* Tags */
.artigo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-gray-200);
}

.artigo-tag {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  padding: .25rem .875rem;
  font-size: var(--text-xs);
  font-weight: 500;
}

/* ── SIDEBAR ──────────────────────────────────────────────────── */
.artigo-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (min-width: 960px) {
  .artigo-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-6));
  }
}

/* Índice */
.artigo-toc {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.artigo-toc-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.artigo-toc-list {
  padding-left: var(--space-5);
  margin: 0;
}

.artigo-toc-list li {
  margin-bottom: var(--space-2);
}

.artigo-toc-list a {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  text-decoration: none;
  transition: color var(--transition);
  line-height: 1.6;
}

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

/* CTA lateral */
.artigo-cta-box {
  background: linear-gradient(135deg, #000e1f 0%, #011633 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  color: var(--color-white);
}

.artigo-cta-label {
  display: inline-block;
  background: rgba(255,255,255,.15);
  border-radius: var(--radius-full);
  padding: .2rem .75rem;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: var(--space-4);
}

.artigo-cta-box h3 {
  font-size: var(--text-base);
  color: var(--color-white);
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.artigo-cta-box p {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.75);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

/* ── CTA FINAL ────────────────────────────────────────────────── */
.artigo-cta-final {
  background: #f0f4ff;
  border-top: 1px solid #dbeafe;
  padding-block: var(--space-16);
}

.artigo-cta-final-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.artigo-cta-final h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
}

.artigo-cta-final p {
  font-size: var(--text-base);
  color: var(--color-gray-700);
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.artigo-cta-final-btns {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── RESPONSIVO ───────────────────────────────────────────────── */
@media (max-width: 640px) {
  .artigo-meta { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
  .artigo-cta-final-btns { flex-direction: column; align-items: center; }
  .artigo-cta-final-btns .btn { width: 100%; text-align: center; }
  .hide-mobile { display: none; }
}