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

/* ── HERO ────────────────────────────────────────────────────── */
.blog-hero {
  background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 60%, #3b82f6 100%);
  color: var(--color-white);
  padding-block: var(--space-20) var(--space-16);
  position: relative;
  overflow: hidden;
}

.blog-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;
}

.blog-hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.blog-hero-content h1 {
  color: var(--color-white);
  margin-block: var(--space-4) var(--space-5);
}

.blog-hero-accent { color: #93c5fd; }

.blog-hero-desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,.8);
  line-height: 1.8;
  margin-bottom: var(--space-8);
  max-width: 560px;
}

/* ── BUSCA ───────────────────────────────────────────────────── */
.blog-search-form { width: 100%; max-width: 520px; }

.blog-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.blog-search-icon {
  position: absolute;
  left: var(--space-4);
  color: var(--color-gray-400);
  pointer-events: none;
}

.blog-search-input {
  width: 100%;
  height: 52px;
  padding-left: calc(var(--space-4) + 18px + var(--space-3));
  padding-right: var(--space-4);
  border: 1.5px solid rgba(255,255,255,.3);
  border-radius: var(--radius-full);
  background-color: rgba(255,255,255,.12);
  color: var(--color-white);
  font-size: var(--text-sm);
  backdrop-filter: blur(4px);
  transition: background-color var(--transition), border-color var(--transition);
}

.blog-search-input::placeholder { color: rgba(255,255,255,.55); }

.blog-search-input:focus {
  outline: none;
  background-color: rgba(255,255,255,.2);
  border-color: rgba(255,255,255,.6);
}

/* ── BARRA DE CATEGORIAS ─────────────────────────────────────── */
.blog-cats-bar {
  background-color: var(--color-white);
  border-bottom: 1.5px solid var(--color-gray-200);
  position: sticky;
  top: var(--header-height, 72px);
  z-index: 100;
}

.blog-cats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding-block: var(--space-3);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.blog-cats::-webkit-scrollbar { display: none; }

.blog-cat-btn {
  min-height: 38px;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-600);
  background-color: transparent;
  border: 1.5px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.blog-cat-btn:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-900);
}

.blog-cat-btn--active {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: var(--color-white);
}

.blog-cat-btn--active:hover {
  background-color: var(--color-blue-dark);
  border-color: var(--color-blue-dark);
}

/* ── ARTIGO DESTAQUE ─────────────────────────────────────────── */
.blog-featured {
  display: grid;
  grid-template-columns: 1fr;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-8);
  background-color: var(--color-white);
  transition: box-shadow var(--transition);
}

.blog-featured:hover { box-shadow: var(--shadow-lg); }

@media (min-width: 768px) {
  .blog-featured { grid-template-columns: 340px 1fr; }
}

@media (min-width: 1024px) {
  .blog-featured { grid-template-columns: 420px 1fr; }
}

.blog-featured-img {
  background: linear-gradient(135deg, var(--color-blue-light) 0%, #dbeafe 100%);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 768px) {
  .blog-featured-img { min-height: 320px; }
}

.blog-featured-img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-featured-body {
  padding: var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  justify-content: center;
}

@media (min-width: 1024px) {
  .blog-featured-body { padding: var(--space-8) var(--space-10); }
}

.blog-featured-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.blog-featured-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  line-height: 1.3;
}

.blog-featured-title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

.blog-featured-title a:hover { color: var(--color-blue); }

.blog-featured-excerpt {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.8;
}

.blog-featured-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-200);
}

/* ── META INFO ───────────────────────────────────────────────── */
.blog-meta-read {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.blog-meta-date {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

/* ── AUTOR MINI ──────────────────────────────────────────────── */
.blog-author-mini {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-gray-600);
  font-weight: 500;
}

.blog-author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-blue);
  color: var(--color-white);
  font-size: 10px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.blog-author-avatar--green { background-color: var(--color-green); }
.blog-author-avatar--coral { background-color: var(--color-coral); }

/* ── GRID DE ARTIGOS ─────────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 640px)  { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .blog-grid { grid-template-columns: repeat(3, 1fr); } }

/* ── CARD DE ARTIGO ──────────────────────────────────────────── */
.blog-card {
  background-color: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.blog-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* Imagem placeholder */
.blog-card-img {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-card-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-card-img-placeholder--blue  { background: linear-gradient(135deg, var(--color-blue-light) 0%, #dbeafe 100%); }
.blog-card-img-placeholder--green { background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%); }
.blog-card-img-placeholder--coral { background: linear-gradient(135deg, #fde8de 0%, #fecaca 100%); }

/* Corpo */
.blog-card-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.blog-card-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-gray-900);
  line-height: 1.35;
  flex: 1;
}

.blog-card-title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

.blog-card-title a:hover { color: var(--color-blue); }

.blog-card-excerpt {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
  flex: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-gray-200);
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  flex-wrap: wrap;
}

/* ── ESTADO VAZIO ────────────────────────────────────────────── */
.blog-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-16);
  text-align: center;
}

.blog-empty p {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

/* ── CARREGAR MAIS ───────────────────────────────────────────── */
.blog-load-more {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-10);
  text-align: center;
}

.blog-load-more-text {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
}

/* ── NEWSLETTER ──────────────────────────────────────────────── */
.blog-newsletter-section {
  background-color: var(--color-gray-100);
}

.blog-newsletter-card {
  max-width: 760px;
  margin-inline: auto;
  background-color: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

@media (min-width: 768px) {
  .blog-newsletter-card {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
  }
}

.blog-newsletter-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background-color: var(--color-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.blog-newsletter-text {
  flex: 1;
}

.blog-newsletter-text h2 {
  font-size: var(--text-lg);
  color: var(--color-gray-900);
  margin-bottom: var(--space-1);
}

.blog-newsletter-text p {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}

.blog-newsletter-form {
  width: 100%;
  max-width: 360px;
  flex-shrink: 0;
}

.blog-newsletter-field {
  display: flex;
  gap: var(--space-2);
}

.blog-newsletter-field .form-input {
  flex: 1;
  min-width: 0;
}

.blog-newsletter-error {
  font-size: var(--text-xs);
  color: var(--color-coral);
  margin-top: var(--space-2);
  min-height: 1.25em;
}

.blog-newsletter-success {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-green);
  font-weight: 600;
  padding-block: var(--space-3);
}

/* ── UTILITÁRIOS ─────────────────────────────────────────────── */
.hidden { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}