/* ==========================================================================
   solucionCar - Hoja de Estilos Principal (Optimizado para Google AdSense)
   ========================================================================== */

:root {
  --primary: #0f2b48;
  --primary-light: #1b4974;
  --accent: #0070f3;
  --accent-hover: #0051b3;
  --text-main: #222b34;
  --text-muted: #5a6872;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --danger-bg: #fee2e2;
  --danger-text: #991b1b;
  --warning-bg: #fef3c7;
  --warning-text: #92400e;
  --success-bg: #dcfce7;
  --success-text: #166534;
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-width: 1120px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-stack);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Encabezado y Navegación */
.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.brand-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none !important;
}

.brand-logo span {
  color: var(--accent);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 24px;
}

.main-nav a {
  font-weight: 600;
  font-size: 15px;
  color: var(--text-main);
}

.main-nav a:hover {
  color: var(--accent);
}

/* Portada - Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #ffffff;
  padding: 56px 0 48px;
  text-align: center;
}

.hero h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.hero p {
  font-size: 19px;
  color: #cbd5e1;
  max-width: 680px;
  margin: 0 auto 28px;
}

/* Buscador Rápido */
.search-wrapper {
  max-width: 580px;
  margin: 0 auto;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 15px 22px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  outline: none;
}

.search-input:focus {
  outline: 3px solid rgba(0, 112, 243, 0.4);
}

/* Secciones de Contenido */
.section {
  padding: 48px 0;
}

.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.section-desc {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 16px;
}

/* Rejilla de Tarjetas (Artículos y Códigos) */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
  align-self: flex-start;
}

.tag-dtc { background-color: var(--danger-bg); color: var(--danger-text); }
.tag-guide { background-color: var(--warning-bg); color: var(--warning-text); }
.tag-maint { background-color: var(--success-bg); color: var(--success-text); }

.card h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--primary);
}

.card p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 20px;
  flex-grow: 1;
}

.card-link {
  font-weight: 700;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.catalog-container {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
}

.catalog-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)) !important;
  gap: 25px !important;
}

/* Botón Ver más catálogo OBD-II */
.ver-mas-container {
  text-align: center;
  margin-top: 40px;
  margin-bottom: 20px;
}

.btn-ver-mas {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: #2563eb;
  color: #ffffff;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  transition: all 0.2s ease-in-out;
}

.btn-ver-mas:hover {
  background-color: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
  color: #ffffff;
}

/* Estructura para Artículos Individuales (AdSense-Ready) */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  margin-top: 36px;
}

.article-body {
  background: #ffffff;
  padding: 40px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.article-body h1 {
  font-size: 32px;
  color: var(--primary);
  margin-bottom: 14px;
  line-height: 1.25;
}

.article-meta {
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.article-body h2 {
  font-size: 22px;
  color: var(--primary-light);
  margin: 32px 0 14px;
}

.article-body h3 {
  font-size: 18px;
  margin: 20px 0 10px;
}

.article-body p {
  margin-bottom: 18px;
  color: #334155;
}

.article-body ul, .article-body ol {
  margin: 0 0 20px 24px;
  color: #334155;
}

.article-body li {
  margin-bottom: 8px;
}

.technical-box {
  background-color: #f1f5f9;
  border-left: 4px solid var(--accent);
  padding: 20px;
  border-radius: 4px;
  margin: 28px 0;
}

/* Barra Lateral (Sidebar) */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-widget {
  background: #ffffff;
  padding: 24px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.sidebar-widget h4 {
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 14px;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 6px;
}

.sidebar-widget ul {
  list-style: none;
}

.sidebar-widget li {
  margin-bottom: 12px;
  font-size: 14px;
}

/* Pie de Página */
.site-footer {
  background-color: var(--primary);
  color: #94a3b8;
  padding: 48px 0 28px;
  margin-top: 60px;
  font-size: 14px;
}

.footer-columns {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}

.footer-col h5 {
  color: #ffffff;
  font-size: 16px;
  margin-bottom: 14px;
}

.footer-col p {
  line-height: 1.6;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: #cbd5e1;
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #1e3a5f;
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
}

/* Responsive */
@media (max-width: 860px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .footer-columns {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .header-inner {
    flex-direction: column;
    gap: 12px;
  }
}