/* ============================================
   BLOG STYLES — AsistoIA
   ============================================ */

:root {
  --primary: #4F46E5;
  --primary-dark: #3730A3;
  --primary-light: #EEF2FF;
  --secondary: #7C3AED;
  --text: #1E293B;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --bg: #ffffff;
  --bg-light: #F8FAFC;
  --border: #E2E8F0;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,.07);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { font-family: Inter, system-ui, sans-serif; color: var(--text); background: var(--bg); overflow-x: hidden; }

/* ---- NAVBAR (shared) ---- */
#navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 20px 0; transition: all .3s; }
#navbar.scrolled { background: rgba(255,255,255,.95); backdrop-filter: blur(12px); padding: 12px 0; box-shadow: 0 1px 20px rgba(0,0,0,.08); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.nav-logo { display: inline-flex; align-items: center; text-decoration: none; font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; color: var(--text); gap: 3px; }
.nav-logo em { font-style: normal; background: linear-gradient(135deg,#4F46E5,#7C3AED); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; list-style: none; gap: 32px; }
.nav-links a { text-decoration: none; color: var(--text-muted); font-weight: 500; font-size: .95rem; transition: color .2s; }
.nav-links a:hover { color: var(--primary); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 8px; font-weight: 600; font-size: .9rem; text-decoration: none; transition: all .2s; cursor: pointer; border: none; }
.btn-primary { background: linear-gradient(135deg,#4F46E5,#7C3AED); color: #fff; }
.btn-primary:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(79,70,229,.3); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.nav-cta { padding: 10px 20px; font-size: .875rem; }
@media(max-width:768px){ .nav-links, .nav-cta { display: none; } }

/* ---- BLOG HERO (index) ---- */
.blog-hero {
  padding: 140px 0 72px;
  background: linear-gradient(135deg, #F8FAFC 0%, #EEF2FF 50%, #F3E8FF 100%);
  text-align: center;
}
.blog-hero .badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-light); color: var(--primary);
  padding: 6px 16px; border-radius: 999px; font-size: .8rem; font-weight: 700;
  margin-bottom: 24px;
}
.blog-hero h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; line-height: 1.15; letter-spacing: -.02em; margin-bottom: 16px; }
.blog-hero h1 em { font-style: normal; background: linear-gradient(135deg,#4F46E5,#7C3AED); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.blog-hero p { font-size: 1.1rem; color: var(--text-muted); max-width: 540px; margin: 0 auto; }

/* ---- BLOG GRID (index) ---- */
.blog-section { padding: 72px 0 100px; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media(max-width: 900px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media(max-width: 600px) { .blog-grid { grid-template-columns: 1fr; } }

.blog-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
  display: flex; flex-direction: column;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.blog-card-img {
  width: 100%; aspect-ratio: 16/9; object-fit: cover;
  background: linear-gradient(135deg, #EEF2FF, #F3E8FF);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; min-height: 160px;
}
.blog-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.blog-tag {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  padding: 3px 10px; border-radius: 999px; font-size: .72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .05em; margin-bottom: 12px;
}
.blog-card-body h2 { font-size: 1.05rem; font-weight: 700; line-height: 1.4; margin-bottom: 10px; }
.blog-card-body h2 a { text-decoration: none; color: var(--text); }
.blog-card-body h2 a:hover { color: var(--primary); }
.blog-card-body p { font-size: .9rem; color: var(--text-muted); line-height: 1.6; flex: 1; margin-bottom: 20px; }
.blog-card-footer { display: flex; align-items: center; justify-content: space-between; }
.blog-meta { font-size: .8rem; color: var(--text-light); }
.read-more { font-size: .85rem; font-weight: 600; color: var(--primary); text-decoration: none; display: flex; align-items: center; gap: 4px; }
.read-more:hover { gap: 8px; }

/* ---- ARTICLE LAYOUT ---- */
.article-hero {
  padding: 140px 0 64px;
  background: linear-gradient(135deg, #F8FAFC 0%, #EEF2FF 60%, #F3E8FF 100%);
}
.article-hero-inner { max-width: 760px; margin: 0 auto; }
.article-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: .82rem; color: var(--text-muted); margin-bottom: 20px; }
.article-breadcrumb a { color: var(--primary); text-decoration: none; }
.article-breadcrumb a:hover { text-decoration: underline; }
.article-breadcrumb span { color: var(--text-light); }

.article-hero .blog-tag { margin-bottom: 16px; }
.article-hero h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); font-weight: 800; line-height: 1.2; letter-spacing: -.02em; margin-bottom: 20px; }
.article-hero-meta { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.article-hero-meta span { font-size: .85rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.article-excerpt { font-size: 1.1rem; color: var(--text-muted); line-height: 1.7; margin-top: 20px; max-width: 680px; }

/* ---- ARTICLE BODY ---- */
.article-body { padding: 64px 0 80px; }
.article-content { max-width: 760px; margin: 0 auto; }

.article-content h2 {
  font-size: 1.5rem; font-weight: 700; margin: 48px 0 16px;
  color: var(--text); line-height: 1.3;
}
.article-content h3 {
  font-size: 1.15rem; font-weight: 700; margin: 32px 0 12px; color: var(--text);
}
.article-content p {
  font-size: 1.05rem; line-height: 1.8; color: #374151; margin-bottom: 20px;
}
.article-content ul, .article-content ol {
  margin: 0 0 24px 24px; display: flex; flex-direction: column; gap: 10px;
}
.article-content li { font-size: 1.05rem; line-height: 1.7; color: #374151; }
.article-content strong { color: var(--text); }
.article-content a { color: var(--primary); }
.article-content a:hover { text-decoration: underline; }

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 20px 24px;
  border-radius: 0 8px 8px 0;
  margin: 32px 0;
  font-size: 1.05rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.7;
}

/* ---- CTA BOX (within article) ---- */
.article-cta {
  position: relative;
  background: linear-gradient(135deg, #4338CA 0%, #6D28D9 100%);
  border-radius: 20px;
  padding: 48px 56px;
  margin: 56px 0;
  text-align: center;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(79, 70, 229, 0.35);
}
/* Decorative circles */
.article-cta::before,
.article-cta::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
  background: #fff;
  pointer-events: none;
}
.article-cta::before { width: 220px; height: 220px; top: -80px; right: -60px; }
.article-cta::after  { width: 140px; height: 140px; bottom: -50px; left: -40px; }

.article-cta h3 {
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: 14px;
  color: #fff !important;
  line-height: 1.3;
  position: relative;
}
.article-cta p {
  font-size: 1rem;
  color: rgba(255,255,255,0.88) !important;
  margin-bottom: 32px;
  line-height: 1.7;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
.article-cta .btn {
  background: #fff;
  color: #4338CA;
  font-weight: 700;
  font-size: .95rem;
  padding: 14px 32px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  position: relative;
  transition: all .2s;
}
.article-cta .btn:hover {
  background: #EEF2FF;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.2);
}
@media(max-width:600px){
  .article-cta { padding: 36px 24px; }
  .article-cta h3 { font-size: 1.2rem; }
}

/* ---- KEY POINTS BOX ---- */
.key-points {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  margin: 32px 0;
}
.key-points h4 { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--primary); margin-bottom: 16px; }
.key-points ul { margin: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.key-points li { display: flex; align-items: flex-start; gap: 10px; font-size: .95rem; color: var(--text); line-height: 1.5; }
.key-points li::before { content: "✓"; color: var(--primary); font-weight: 800; flex-shrink: 0; margin-top: 1px; }

/* ---- RELATED ARTICLES ---- */
.related-articles { padding: 64px 0; background: var(--bg-light); }
.related-articles h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 32px; }

/* ---- FOOTER (blog) ---- */
footer.blog-footer { background: #0F172A; color: rgba(255,255,255,.7); padding: 40px 0; }
.blog-footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.blog-footer .nav-logo { color: #fff; }
.blog-footer p { font-size: .85rem; }
.blog-footer a { color: rgba(255,255,255,.7); text-decoration: none; }
.blog-footer a:hover { color: #fff; }