/* ─── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-text:       #111827;
  --color-muted:      #6b7280;
  --color-border:     #e5e7eb;
  --color-bg:         #ffffff;
  --color-bg-subtle:  #f9fafb;
  --color-accent:     #6b21a8;
  --color-accent-hover: #581c87;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 720px;
  --max-width-wide: 1100px;
}

html { font-size: 17px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); }

img { max-width: 100%; height: auto; display: block; }

/* ─── Container ────────────────────────────────────────────── */
.container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Header ───────────────────────────────────────────────── */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 0;
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  max-width: 100%;
}

.site-logo {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.site-logo:hover { color: var(--color-text); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: color 0.15s;
}
.site-nav a:hover { color: var(--color-text); }

.nav-cta {
  display: inline-flex !important;
  align-items: center;
  font-size: 0.8rem !important;
  font-weight: 500;
  color: var(--color-accent) !important;
  border: 1px solid var(--color-border);
  padding: 5px 12px;
  border-radius: 6px;
  transition: border-color 0.15s, color 0.15s !important;
}
.nav-cta:hover {
  border-color: var(--color-accent) !important;
  color: var(--color-accent-hover) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* ─── Main ─────────────────────────────────────────────────── */
.site-main {
  min-height: 60vh;
}

/* ─── Blog hero ────────────────────────────────────────────── */
.blog-hero {
  border-bottom: 1px solid var(--color-border);
  padding: 56px 0 36px;
}

.blog-hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 12px;
}

.blog-hero__subtitle {
  font-size: 1rem;
  color: var(--color-muted);
  max-width: 520px;
  line-height: 1.65;
  margin-bottom: 28px;
}

/* ─── Category tabs ────────────────────────────────────────── */
.category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.category-tab {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  background: var(--color-bg);
  transition: all 0.15s;
}
.category-tab:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}
.category-tab.is-active {
  background: var(--color-text);
  border-color: var(--color-text);
  color: #fff;
}

/* ─── Blog grid ────────────────────────────────────────────── */
.blog-grid-section { padding: 48px 0 80px; }

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ─── Post card ────────────────────────────────────────────── */
.post-card {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s, transform 0.2s;
  background: var(--color-bg);
}
.post-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.09);
  transform: translateY(-2px);
}

.post-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}
.post-card__link:hover { color: inherit; }

.post-card__image {
  position: relative;
  height: 200px;
  background-color: #1a1a2e;
  background-size: cover;
  background-position: center;
}

.post-card--featured .post-card__image { height: 260px; }

.post-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(20,10,40,0.55) 0%, rgba(10,5,20,0.75) 100%);
}

.post-card__cat {
  position: absolute;
  top: 16px;
  left: 16px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 4px 10px;
  border-radius: 100px;
  backdrop-filter: blur(4px);
}

.post-card__body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card__title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: 8px;
}

.post-card__excerpt {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 16px;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--color-muted);
}
.meta-dot { color: var(--color-border); }

/* legacy — used in archive/single meta */
.post-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 10px;
}
.post-category {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
}
.post-category:hover { color: var(--color-accent-hover); }
.meta-sep { color: var(--color-border); }
.post-title { font-size: 1.35rem; font-weight: 600; line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 10px; }
.post-title a { color: var(--color-text); }
.post-title a:hover { color: var(--color-accent); }
.post-excerpt { font-size: 0.9rem; color: var(--color-muted); line-height: 1.65; margin-bottom: 14px; }
.read-more { font-size: 0.85rem; font-weight: 500; color: var(--color-accent); }
.read-more:hover { color: var(--color-accent-hover); }

/* ─── Single hero (con imagen) ────────────────────────────── */
.single-hero {
  position: relative;
  width: 100%;
  min-height: 480px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
}

.single-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.35) 60%, rgba(0,0,0,0.1) 100%);
}

.single-hero__content {
  position: relative;
  z-index: 1;
  padding-bottom: 48px;
  padding-top: 48px;
  max-width: var(--max-width);
}

.single-hero__cat {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
  backdrop-filter: blur(4px);
}
.single-hero__cat:hover { color: #fff; }

.single-hero__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 16px;
}

.single-hero__meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}

/* ─── Single hero sin imagen: degradado ────────────────────── */
.single-hero--gradient {
  background: linear-gradient(135deg, #1e1040 0%, #3b1f6b 40%, #6b21a8 70%, #9333ea 100%);
}
.single-hero--gradient .single-hero__overlay {
  background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.1) 60%, transparent 100%);
}

.back-link--spaced { margin-top: 36px; }

/* ─── Single post ──────────────────────────────────────────── */
.back-link {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 40px;
  transition: color 0.15s;
}
.back-link:hover { color: var(--color-text); }

.single-post { }

.single-header { margin-bottom: 40px; }

.single-title {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 12px 0 16px;
}

.single-content {
  font-size: 1rem;
  line-height: 1.8;
  color: #1f2937;
  max-width: var(--max-width);
  margin: 0 auto;
}

.single-content h2 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 2.5rem 0 1rem;
}
.single-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
}
.single-content p { margin-bottom: 1.4rem; }
.single-content ul, .single-content ol {
  margin: 0 0 1.4rem 1.5rem;
}
.single-content li { margin-bottom: 0.4rem; }
.single-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: 20px;
  margin: 1.5rem 0;
  color: var(--color-muted);
  font-style: italic;
}
.single-content a { text-decoration: underline; text-underline-offset: 3px; }
.single-content code {
  font-size: 0.875em;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  padding: 2px 6px;
  border-radius: 4px;
}
.single-content pre {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  padding: 16px 20px;
  border-radius: 8px;
  overflow-x: auto;
  margin-bottom: 1.4rem;
}
.single-content pre code {
  background: none;
  border: none;
  padding: 0;
}
.single-content img {
  border-radius: 8px;
  margin: 1.5rem 0;
}

/* ─── Single footer ────────────────────────────────────────── */
.single-footer {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.claster-cta {
  background: #faf5ff;
  border: 1px solid #e9d5ff;
  border-radius: 10px;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}
.claster-cta p {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.5;
}
.claster-cta p strong { color: var(--color-text); }

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  font-size: 0.75rem;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  padding: 4px 10px;
  border-radius: 100px;
  transition: border-color 0.15s, color 0.15s;
}
.tag:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ─── CTA button ───────────────────────────────────────────── */
.cta-button {
  display: inline-block;
  background: var(--color-accent);
  color: #fff !important;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 6px;
  white-space: nowrap;
  transition: background 0.15s;
}
.cta-button:hover { background: var(--color-accent-hover); }

/* ─── Archive header ───────────────────────────────────────── */
.archive-header { max-width: var(--max-width); margin: 0 auto 40px; }
.archive-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.archive-desc { font-size: 0.9rem; color: var(--color-muted); }

/* ─── Pagination ───────────────────────────────────────────── */
.pagination { max-width: var(--max-width); margin: 48px auto 0; }
.pagination .page-numbers {
  display: flex;
  list-style: none;
  gap: 8px;
  flex-wrap: wrap;
}
.pagination .page-numbers li a,
.pagination .page-numbers li span {
  display: inline-flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-muted);
  padding: 6px 4px;
  transition: color 0.15s;
}
.pagination .page-numbers li a:hover { color: var(--color-accent); }
.pagination .page-numbers li .current { color: var(--color-text); font-weight: 600; }

/* ─── 404 ──────────────────────────────────────────────────── */
.error-page {
  max-width: 480px;
  margin: 40px auto;
  text-align: center;
}
.error-code { font-size: 4rem; font-weight: 700; color: var(--color-border); }
.error-title { font-size: 1.5rem; font-weight: 600; margin: 8px 0 12px; }
.error-desc { color: var(--color-muted); margin-bottom: 28px; }

/* ─── Footer ───────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
  margin-top: 40px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy, .footer-links {
  font-size: 0.8rem;
  color: var(--color-muted);
}
.footer-copy a, .footer-links a { color: var(--color-muted); }
.footer-copy a:hover, .footer-links a:hover { color: var(--color-accent); }

/* ─── No posts ─────────────────────────────────────────────── */
.no-posts { color: var(--color-muted); font-size: 0.9rem; }

/* ─── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  html { font-size: 16px; }

  .blog-hero { padding: 40px 0 28px; }
  .blog-grid-section { padding: 32px 0 60px; }
  .post-grid { grid-template-columns: 1fr; }

  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 0;
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a {
    width: 100%;
    padding: 12px 24px;
    font-size: 0.95rem;
  }
  .nav-cta {
    border: none !important;
    border-radius: 0 !important;
    padding: 12px 24px !important;
  }

  .claster-cta {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}