/* Blog Carteirinha — Estilos principais */

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

:root {
  --color-bg: #ffffff;
  --color-text: #1a1a2e;
  --color-text-muted: #555568;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-accent: #f59e0b;
  --color-border: #e5e7eb;
  --color-surface: #f9fafb;
  --color-pilar: #eff6ff;
  --max-width: 720px;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
}

/* ── HEADER ──────────────────────────────────── */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: .4rem;
}

.site-logo__icon { font-size: 1.4rem; }

.site-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color .2s;
}

.site-nav a:hover { color: var(--color-primary); }

/* ── CONTAINER ───────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── ARTICLE ─────────────────────────────────── */
.article-wrapper {
  padding: 3rem 0 5rem;
}

.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.article-header__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.article-header__silo {
  background: var(--color-pilar);
  color: var(--color-primary-dark);
  padding: .2rem .6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: .03em;
}

.article-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: .75rem;
}

.article-header__desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── ARTICLE CONTENT ─────────────────────────── */
.article-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 2.5rem 0 1rem;
  padding-bottom: .5rem;
  border-bottom: 2px solid var(--color-border);
}

.article-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 1.75rem 0 .75rem;
}

.article-content p {
  margin-bottom: 1.2rem;
  color: var(--color-text);
}

.article-content ul, .article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.2rem;
}

.article-content li { margin-bottom: .4rem; }

.article-content strong { font-weight: 600; color: var(--color-text); }

.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color .2s;
}

.article-content a:hover { color: var(--color-primary-dark); }

/* FAQ styling */
.article-content h2:has(+ h3 + p) { color: var(--color-primary-dark); }

/* Blockquote */
.article-content blockquote {
  border-left: 4px solid var(--color-accent);
  padding: .75rem 1rem;
  margin: 1.5rem 0;
  background: #fffbeb;
  border-radius: 0 8px 8px 0;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ── INDEX PAGE ──────────────────────────────── */
.index-hero {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  color: white;
  padding: 4rem 1.5rem;
  text-align: center;
}

.index-hero h1 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.index-hero p {
  font-size: 1.1rem;
  opacity: .9;
  max-width: 500px;
  margin: 0 auto;
}

.index-main {
  padding: 3rem 0 5rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 2px;
  background: var(--color-border);
  margin-left: .5rem;
}

.articles-grid {
  display: grid;
  gap: 1.25rem;
}

.card {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(37,99,235,.1);
}

.card--pilar {
  border-color: var(--color-primary);
  background: var(--color-pilar);
}

.card a {
  display: block;
  padding: 1.25rem 1.5rem;
  text-decoration: none;
  color: inherit;
}

.card__titulo {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: .4rem;
  line-height: 1.4;
}

.card__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: .5rem;
}

.card__data {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.card__badge {
  display: inline-block;
  background: var(--color-primary);
  color: white;
  font-size: 0.72rem;
  font-weight: 600;
  padding: .15rem .5rem;
  border-radius: 999px;
  margin-left: .5rem;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* ── FOOTER ──────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.site-footer a {
  color: var(--color-primary);
  text-decoration: none;
}

.site-footer p + p { margin-top: .5rem; }

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 600px) {
  body { font-size: 16px; }
  .article-header h1 { font-size: 1.5rem; }
  .article-content h2 { font-size: 1.2rem; }
}