/* ==========================================================================
   blog.css, Varu Digital
   Estilos compartidos por blog/index.html y cada blog/<slug>/index.html.
   Reutiliza los mismos tokens de color y tipografía que index.html para que
   el blog se sienta parte del mismo sitio, no una sección aparte.
   ========================================================================== */

:root{
  --coral: #ff595a;
  --ink: #ffffff;
  --ink-dim: rgba(255,255,255,0.85);
  --ink-faint: rgba(255,255,255,0.6);
  --dark: #0d0614;
  --dark-2: #150a22;
  --line: rgba(255,255,255,0.14);
  --maxw: 1100px;
  --maxw-article: 720px;
}
*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background:var(--dark);
  color:var(--ink);
  font-family:'Poppins',sans-serif;
  line-height:1.5;
  overflow-x:hidden;
}
a{ color:inherit; text-decoration:none; }
.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 32px; }

/* ---------- swirl background (idéntico al de index.html, para que el header del blog
   use la misma base morada que la landing, no el --dark plano) ---------- */
.swirl{
  position:relative;
  background:
    radial-gradient(circle at 18% 25%, #ff2f7e 0%, rgba(255,47,126,0) 42%),
    radial-gradient(circle at 78% 15%, #8a2be8 0%, rgba(138,43,232,0) 48%),
    radial-gradient(circle at 65% 85%, #2a3fd6 0%, rgba(42,63,214,0) 55%),
    radial-gradient(circle at 10% 90%, #5b12a8 0%, rgba(91,18,168,0) 50%),
    linear-gradient(135deg, #2b0a4e, #150626 70%);
  overflow:hidden;
}
.swirl::before{
  content:"";
  position:absolute; inset:-10%;
  background:
    conic-gradient(from 180deg at 50% 50%,
      rgba(255,47,126,0.35), rgba(138,43,232,0.3), rgba(42,63,214,0.35),
      rgba(255,89,90,0.25), rgba(255,47,126,0.35));
  filter: blur(60px);
  opacity:0.75;
  animation: drift 30s linear infinite;
}
@keyframes drift{
  0%{ transform: rotate(0deg) scale(1); }
  100%{ transform: rotate(360deg) scale(1.15); }
}
.grain{ position:absolute; inset:0; opacity:0.05; mix-blend-mode:overlay; pointer-events:none; }

/* ---------- nav (idéntico a index.html) ---------- */
header{
  position:relative; z-index:5;
  display:flex; align-items:center; justify-content:space-between;
  padding:28px 40px;
}
.logo-img{ height:72px; width:auto; display:block; }
header nav{ display:flex; align-items:center; gap:36px; }
header nav a{ font-weight:600; font-size:0.95rem; }
header nav a:hover{ color:var(--coral); }
header nav a.active{ color:var(--coral); }
.nav-toggle{ display:none; }

@media (max-width:720px){
  header nav{
    position:fixed; top:0; right:0; height:100vh; width:min(76vw,320px);
    background:var(--dark-2); flex-direction:column; align-items:center;
    justify-content:flex-start; gap:22px; padding:120px 32px 40px; z-index:20;
    transform:translateX(100%); transition:transform .3s ease;
    overflow-y:auto;
  }
  header nav.open{ transform:translateX(0); }
  header nav a{ font-size:1.05rem; }
  .nav-toggle{
    display:flex; flex-direction:column; justify-content:center; gap:5px;
    width:32px; height:28px; z-index:21; background:none; border:none; cursor:pointer;
  }
  .nav-toggle span{ display:block; height:2px; width:100%; background:var(--ink); }
}

.cta-link{
  display:inline-flex; align-items:center; gap:6px;
  color:var(--coral); font-weight:600; font-size:1.1rem;
  text-decoration:underline; text-underline-offset:3px;
}
.cta-link svg{ width:20px; height:20px; transition:transform .2s ease; }
.cta-link:hover svg{ transform:translate(3px,-3px); }

/* ---------- blog hero ---------- */
.blog-hero{ position:relative; z-index:2; padding:26px 24px 20px; text-align:center; }
.blog-hero .eyebrow{
  font-size:0.8rem; font-weight:600; letter-spacing:0.18em; text-transform:uppercase;
  color:var(--ink-dim); margin-bottom:14px; display:block;
}
.blog-hero h1{ font-weight:700; font-size:clamp(2.1rem,5vw,3.2rem); line-height:1.15; max-width:760px; margin:0 auto; }
.blog-hero p{ color:var(--ink-faint); font-weight:500; max-width:560px; margin:16px auto 0; }

/* ---------- listado de posts ---------- */
.blog-list{ padding:60px 0 120px; background:var(--dark-2); }
.post-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:32px; }
.post-card{
  background:rgba(255,255,255,0.03); border:1px solid var(--line); border-radius:18px;
  padding:28px; display:flex; flex-direction:column; gap:14px; transition:border-color .2s ease, transform .2s ease;
}
.post-card:hover{ border-color:var(--coral); transform:translateY(-3px); }
.post-card.reveal{ transition:border-color .2s ease, transform .2s ease, opacity .7s ease; }
.post-card.reveal:hover{ transform:translateY(-3px); }
.post-card .post-fase{
  font-size:0.72rem; font-weight:600; letter-spacing:0.1em; text-transform:uppercase; color:var(--coral);
}
.post-card h2{ font-weight:600; font-size:1.25rem; line-height:1.3; }
.post-card p{ color:var(--ink-faint); font-size:0.92rem; line-height:1.55; }
.post-card .post-meta{ color:var(--ink-faint); font-size:0.8rem; margin-top:auto; }
.post-card .post-read{ color:var(--coral); font-weight:600; font-size:0.9rem; }

/* ---------- artículo individual ---------- */
.article-header{ position:relative; z-index:2; padding:60px 24px 40px; text-align:center; }
.article-header .eyebrow{
  font-size:0.8rem; font-weight:600; letter-spacing:0.18em; text-transform:uppercase;
  color:var(--coral); margin-bottom:16px; display:block;
}
.article-header h1{
  font-weight:700; font-size:clamp(2rem,4.6vw,3rem); line-height:1.18;
  max-width:var(--maxw-article); margin:0 auto 18px;
}
.article-meta{ color:var(--ink-faint); font-size:0.88rem; }

.article-body{ background:var(--dark-2); }
.article-content{
  max-width:var(--maxw-article); margin:0 auto; padding:60px 24px 60px;
}
.article-content h2{
  font-weight:600; font-size:clamp(1.3rem,2.6vw,1.6rem); line-height:1.3;
  margin:44px 0 18px;
}
.article-content h2:first-child{ margin-top:0; }
.article-content p{
  font-weight:400; font-size:1.05rem; line-height:1.75; color:var(--ink-dim);
  margin-bottom:22px;
}
.article-content strong{ color:var(--ink); font-weight:600; }

.article-footer-nav{
  max-width:var(--maxw-article); margin:0 auto; padding:0 24px 100px;
  border-top:1px solid var(--line); padding-top:32px;
}

/* ---------- posts relacionados (fin de artículo) ---------- */
.related-posts{
  max-width:var(--maxw-article); margin:0 auto; padding:0 24px 48px;
}
.related-posts h3{
  font-size:0.85rem; font-weight:600; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--ink-faint); margin-bottom:20px;
}
.related-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:18px; }
.related-card{
  background:rgba(255,255,255,0.03); border:1px solid var(--line); border-radius:14px;
  padding:18px; display:block; transition:border-color .2s ease, transform .2s ease;
}
.related-card:hover{ border-color:var(--coral); transform:translateY(-2px); }
.related-card h4{ font-weight:600; font-size:0.95rem; line-height:1.35; color:var(--ink); }

/* ---------- footer (idéntico a index.html) ---------- */
footer{
  background:var(--dark);
  padding:56px 0 32px; display:flex; flex-direction:column; align-items:center;
  gap:28px;
}
footer .wrap{ display:flex; align-items:center; justify-content:space-between; width:100%; flex-wrap:wrap; gap:24px; }
footer .footer-right{ display:flex; flex-direction:column; align-items:flex-end; gap:14px; }
footer .logo-img{ height:76px; opacity:0.95; }
footer .logo-img.logo-canto{ height:48px; }
footer .copy{ font-size:0.82rem; color:var(--ink-faint); text-align:right; }
footer .legal-links{ font-size:10px; color:var(--ink-faint); text-align:center; }
footer .legal-links a{ color:var(--ink-faint); text-decoration:underline; text-underline-offset:2px; }
footer .legal-links a:hover{ color:var(--ink); }
@media (max-width:640px){
  footer .wrap{ flex-direction:column; align-items:center; text-align:center; }
  footer .footer-right{ align-items:center; }
  footer .copy{ text-align:center; }
}
footer .legal-links span{ margin:0 6px; opacity:0.5; }

/* ---------- cookie banner (idéntico a index.html) ---------- */
#cookieBanner{
  position:fixed; left:0; right:0; bottom:0; z-index:50;
  display:flex; justify-content:center; padding:20px;
  transform:translateY(120%); transition:transform .35s ease;
}
#cookieBanner.show{ transform:translateY(0); }
.cookie-card{
  max-width:720px; width:100%; background:var(--dark-2); border:1px solid var(--line); border-radius:16px;
  padding:22px 26px; display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:16px;
  box-shadow:0 10px 40px rgba(0,0,0,0.4);
}
.cookie-text{ font-size:0.85rem; color:var(--ink-dim); flex:1; min-width:220px; }
.cookie-actions{ display:flex; gap:10px; flex-wrap:wrap; }
.cookie-btn{
  font-family:'Poppins', sans-serif; font-size:0.85rem; font-weight:600; cursor:pointer;
  padding:10px 18px; border-radius:999px; border:1px solid var(--line); background:transparent; color:var(--ink);
  transition:border-color .2s ease;
}
.cookie-btn:hover{ border-color:var(--coral); }
.cookie-btn.primary{ background:var(--coral); border-color:var(--coral); color:#fff; }
.cookie-btn.primary:hover{ filter:brightness(1.1); }
.cookie-btn.link{ border-color:transparent; text-decoration:underline; text-underline-offset:3px; padding:12px 4px; }
.cookie-btn.link:hover{ border-color:transparent; }

.reveal{ opacity:0; transform:translateY(20px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }