/* ============================================================
   Dev Blog — Estilo crema / verde oliva
   ============================================================ */

/* --- Variables CSS ----------------------------------------- */
:root {
  /* Paleta */
  --color-bg:          #eee9df;
  --color-bg-alt:      #e6e0d4;
  --color-bg-card:     #f2ede4;
  --color-border:      #d4cdc0;
  --color-border-light:#e0d9ce;

  --color-text:        #1e1c18;
  --color-text-muted:  #5c5849;
  --color-text-faint:  #9a9080;

  --color-accent:      #4d6b3c;
  --color-accent-dark: #3a5230;
  --color-accent-light:#6a8f56;
  --color-accent-bg:   #e4edd9;

  /* Tipografía */
  --font-serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:  "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  /* Espaciado */
  --spacing-xs:  0.25rem;
  --spacing-sm:  0.5rem;
  --spacing-md:  1rem;
  --spacing-lg:  1.5rem;
  --spacing-xl:  2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 5rem;

  --max-width:      740px;
  --max-width-wide: 1000px;

  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 4px rgba(60,50,30,0.08);
  --shadow-md: 0 4px 16px rgba(60,50,30,0.10);

  --transition: 150ms ease;
}

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

html { font-size: 17px; scroll-behavior: smooth; }

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-dark); }
img { max-width: 100%; height: auto; display: block; }

/* --- Layout ------------------------------------------------ */
.container { width: 100%; max-width: var(--max-width-wide); margin: 0 auto; padding: 0 var(--spacing-xl); }
.site-main { flex: 1; padding: var(--spacing-2xl) 0; }

/* --- Header ------------------------------------------------ */
.site-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 100;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.site-title { font-family: var(--font-serif); font-size: 1.3rem; font-weight: 600; color: var(--color-text); }
.site-title:hover { color: var(--color-accent); }
.title-text { color: var(--color-text); }
.site-nav { display: flex; align-items: center; gap: var(--spacing-xl); }
.nav-link { color: var(--color-text-muted); font-size: 0.9rem; font-weight: 500; transition: color var(--transition); }
.nav-link:hover { color: var(--color-text); }

/* --- Footer ------------------------------------------------ */
.site-footer { background-color: var(--color-bg-alt); border-top: 1px solid var(--color-border); padding: var(--spacing-xl) 0; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: var(--spacing-lg); }
.footer-logo { margin-bottom: var(--spacing-sm); }
.footer-institution-logo { max-width: 200px; height: auto; opacity: 0.7; transition: opacity var(--transition); }
.footer-institution-logo:hover { opacity: 1; }
.footer-copy { color: var(--color-text-faint); font-size: 0.85rem; }
.footer-copy a { color: var(--color-text-muted); }
.footer-links { display: flex; gap: var(--spacing-lg); }
.footer-links a { color: var(--color-text-faint); font-size: 0.85rem; }
.footer-links a:hover { color: var(--color-accent); }

/* --- Hero -------------------------------------------------- */
.hero { padding: var(--spacing-3xl) 0 var(--spacing-2xl); border-bottom: 1px solid var(--color-border); margin-bottom: var(--spacing-2xl); }
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 600; line-height: 1.1;
  color: var(--color-text);
  letter-spacing: -0.01em;
  margin-bottom: var(--spacing-lg);
}
.hero-logo { max-width: 420px; width: 100%; height: auto; margin-bottom: var(--spacing-lg); }
.hero-tagline { color: var(--color-text-muted); font-size: 1.05rem; max-width: 560px; }

/* --- Secciones home --------------------------------------- */
.section-title {
  font-family: var(--font-serif); font-size: 1.6rem; font-weight: 600;
  color: var(--color-text); margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-sm); border-bottom: 1px solid var(--color-border);
}
.recent-posts { padding: var(--spacing-xl) 0; }
.view-all { margin-top: var(--spacing-xl); }

/* --- Post Cards -------------------------------------------- */
.post-list { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.post-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.post-card:hover { border-color: var(--color-accent-light); box-shadow: var(--shadow-sm); }
.post-card-meta { display: flex; align-items: center; flex-wrap: wrap; gap: var(--spacing-sm); margin-bottom: var(--spacing-sm); }
.post-date { color: var(--color-text-faint); font-size: 0.8rem; font-family: var(--font-mono); letter-spacing: 0.03em; }
.reading-time { color: var(--color-text-faint); font-size: 0.8rem; }
.post-tags { display: flex; flex-wrap: wrap; gap: var(--spacing-xs); }
.tag {
  background: var(--color-accent-bg); color: var(--color-accent-dark);
  font-size: 0.72rem; font-weight: 600; padding: 2px 9px; border-radius: 20px;
  letter-spacing: 0.04em; text-transform: uppercase; transition: background var(--transition);
}
.tag:hover { background: #d4e6c4; color: var(--color-accent-dark); }
.post-card-title { font-family: var(--font-serif); font-size: 1.45rem; font-weight: 600; line-height: 1.3; margin-bottom: var(--spacing-sm); }
.post-card-title a { color: var(--color-text); }
.post-card-title a:hover { color: var(--color-accent); }
.post-card-excerpt { color: var(--color-text-muted); font-size: 0.95rem; line-height: 1.65; margin-bottom: var(--spacing-md); }
.read-more { font-size: 0.875rem; font-weight: 500; color: var(--color-accent); }
.read-more:hover { color: var(--color-accent-dark); }

/* --- Blog Post -------------------------------------------- */
.blog-post { max-width: var(--max-width); margin: 0 auto; }
.post-header { margin-bottom: var(--spacing-2xl); padding-bottom: var(--spacing-xl); border-bottom: 1px solid var(--color-border); }
.post-header-meta { display: flex; align-items: center; flex-wrap: wrap; gap: var(--spacing-md); margin-bottom: var(--spacing-lg); }
.back-link { color: var(--color-text-muted); font-size: 0.875rem; }
.back-link:hover { color: var(--color-accent); }
.post-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 600; line-height: 1.2;
  color: var(--color-text); letter-spacing: -0.01em;
  margin-bottom: var(--spacing-md);
}
.post-subtitle { font-size: 1.1rem; color: var(--color-text-muted); line-height: 1.7; margin-bottom: var(--spacing-md); }

/* --- TOC --------------------------------------------------- */
.toc { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--spacing-lg) var(--spacing-xl); margin-bottom: var(--spacing-2xl); }
.toc-title { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-faint); margin-bottom: var(--spacing-md); }
.toc-list { padding-left: var(--spacing-lg); font-size: 0.9rem; }
.toc-list li { margin-bottom: var(--spacing-xs); }
.toc-list a { color: var(--color-text-muted); }
.toc-list a:hover { color: var(--color-accent); }
.toc-list ol { padding-left: var(--spacing-lg); margin-top: var(--spacing-xs); }

/* --- Contenido del post ------------------------------------ */
.post-content { line-height: 1.85; font-size: 1rem; }
.post-content h1,.post-content h2,.post-content h3,.post-content h4 {
  font-family: var(--font-serif); color: var(--color-text); font-weight: 600;
  margin: var(--spacing-2xl) 0 var(--spacing-md); line-height: 1.25;
}
.post-content h1 { font-size: 2rem; }
.post-content h2 { font-size: 1.7rem; }
.post-content h3 { font-size: 1.4rem; }
.post-content h4 { font-size: 1.15rem; }
.post-content p { margin-bottom: var(--spacing-lg); }
.post-content ul,.post-content ol { padding-left: var(--spacing-xl); margin-bottom: var(--spacing-lg); }
.post-content li { margin-bottom: var(--spacing-xs); }
.post-content blockquote {
  border-left: 3px solid var(--color-accent); padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-xl) 0; background: var(--color-accent-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text-muted); font-family: var(--font-serif); font-size: 1.1rem; font-style: italic;
}
.post-content pre {
  background: #2a2520; border: 1px solid #3a342c; border-radius: var(--radius-md);
  padding: var(--spacing-lg); overflow-x: auto; margin: var(--spacing-xl) 0;
  font-size: 0.85rem; line-height: 1.65;
}
.post-content code {
  font-family: var(--font-mono); font-size: 0.875em;
  background: var(--color-bg-alt); color: var(--color-accent-dark);
  padding: 2px 6px; border-radius: var(--radius-sm); border: 1px solid var(--color-border);
}
.post-content pre code { background: none; border: none; padding: 0; color: #d4c9b0; font-size: inherit; }
.post-content table { width: 100%; border-collapse: collapse; margin: var(--spacing-xl) 0; font-size: 0.9rem; }
.post-content th,.post-content td { border: 1px solid var(--color-border); padding: var(--spacing-sm) var(--spacing-md); text-align: left; }
.post-content th { background: var(--color-bg-alt); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
.post-content td { color: var(--color-text-muted); }
.post-content a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; }
.post-content hr { border: none; border-top: 1px solid var(--color-border); margin: var(--spacing-2xl) 0; }
.post-content img { border-radius: var(--radius-md); margin: var(--spacing-xl) auto; border: 1px solid var(--color-border); box-shadow: var(--shadow-sm); }

/* --- Footer del post --------------------------------------- */
.post-footer { margin-top: var(--spacing-2xl); padding-top: var(--spacing-xl); border-top: 1px solid var(--color-border); }
.post-footer-tags { display: flex; align-items: center; flex-wrap: wrap; gap: var(--spacing-sm); margin-bottom: var(--spacing-xl); }
.tags-label { color: var(--color-text-faint); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
.post-nav-item { display: flex; flex-direction: column; gap: var(--spacing-xs); }
.post-nav-next { text-align: right; }
.post-nav-label { color: var(--color-text-faint); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; }
.post-nav-link { font-family: var(--font-serif); color: var(--color-text-muted); font-size: 1rem; font-weight: 600; }
.post-nav-link:hover { color: var(--color-accent); }

/* --- Páginas estáticas ------------------------------------- */
.page-header { margin-bottom: var(--spacing-2xl); padding-bottom: var(--spacing-xl); border-bottom: 1px solid var(--color-border); }
.page-title { font-family: var(--font-serif); font-size: clamp(2rem, 5vw, 3rem); font-weight: 600; color: var(--color-text); margin-bottom: var(--spacing-sm); letter-spacing: -0.01em; }
.page-description { color: var(--color-text-muted); font-size: 1rem; }
.standalone-page .page-content,.blog-list-page { max-width: var(--max-width); margin: 0 auto; }
.page-content { line-height: 1.85; }
.page-content h2,.page-content h3 { font-family: var(--font-serif); margin: var(--spacing-xl) 0 var(--spacing-sm); }
.page-content p { margin-bottom: var(--spacing-md); color: var(--color-text-muted); }

/* --- Paginación -------------------------------------------- */
.pagination { display: flex; align-items: center; justify-content: space-between; margin-top: var(--spacing-2xl); padding-top: var(--spacing-xl); border-top: 1px solid var(--color-border); }
.pagination-info { color: var(--color-text-faint); font-size: 0.875rem; }

/* --- Tags -------------------------------------------------- */
.tags-cloud { display: flex; flex-wrap: wrap; gap: var(--spacing-sm); }
.tag-item { display: inline-flex; align-items: center; gap: var(--spacing-xs); background: var(--color-bg-card); border: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 0.9rem; padding: var(--spacing-xs) var(--spacing-md); border-radius: 20px; transition: all var(--transition); }
.tag-item:hover { border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-bg); }
.tag-count { background: var(--color-bg-alt); color: var(--color-text-faint); font-size: 0.75rem; padding: 1px 6px; border-radius: 10px; }

/* --- 404 --------------------------------------------------- */
.error-page { text-align: center; padding: var(--spacing-3xl) 0; }
.error-code { font-family: var(--font-serif); font-size: 9rem; font-weight: 600; line-height: 1; color: var(--color-accent); opacity: 0.3; margin-bottom: var(--spacing-lg); }
.error-title { font-family: var(--font-serif); font-size: 2.2rem; color: var(--color-text); margin-bottom: var(--spacing-md); }
.error-message { color: var(--color-text-muted); margin-bottom: var(--spacing-xl); }

/* --- Botones ----------------------------------------------- */
.btn-primary,.btn-secondary { display: inline-flex; align-items: center; padding: 0.6rem 1.5rem; border-radius: var(--radius-sm); font-size: 0.875rem; font-weight: 500; letter-spacing: 0.02em; transition: all var(--transition); cursor: pointer; }
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-dark); color: #fff; }
.btn-secondary { background: transparent; color: var(--color-text-muted); border: 1px solid var(--color-border); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* --- Misceláneas ------------------------------------------- */
.empty-state { color: var(--color-text-faint); text-align: center; padding: var(--spacing-3xl) 0; font-family: var(--font-serif); font-size: 1.1rem; font-style: italic; }

/* --- Responsive -------------------------------------------- */
@media (max-width: 640px) {
  .container { padding: 0 var(--spacing-md); }
  .header-inner { height: auto; padding: var(--spacing-md) 0; flex-direction: column; align-items: flex-start; gap: var(--spacing-sm); }
  .site-nav { gap: var(--spacing-md); }
  .hero { padding: var(--spacing-xl) 0 var(--spacing-lg); }
  .post-card { padding: var(--spacing-md) var(--spacing-lg); }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav-next { text-align: left; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}