:root {
  --color-bg:           #F5F2EC;
  --color-base:         #0D2B1F;
  --color-base-hover:   #1A5C3A;
  --color-accent:       #C8842A;
  --color-text:         #3D3D3A;
  --color-white:        #FFFFFF;
  --color-line:         rgba(13, 43, 31, 0.12);
  --color-muted:        rgba(61, 61, 58, 0.7);

  --font-base: 'Ubuntu', Arial, Helvetica, sans-serif;
  --w-prose: 38rem;
  --w-wide: 64rem;
}

* { box-sizing: border-box; }
html { font-size: 17px; }
body {
  margin: 0;
  font-family: var(--font-base);
  font-weight: 400;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--w-wide);
  margin: 0 auto;
  padding: 0 1.25rem;
}

a { color: var(--color-base); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--color-base-hover); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--color-base);
  color: var(--color-white);
  padding: 1.1rem 0;
  border-bottom: 3px solid var(--color-accent);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.site-brand {
  color: var(--color-white);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}
.brand-name { font-weight: 500; font-size: 1.05rem; letter-spacing: 0.01em; }
.brand-tag {
  font-variant: small-caps;
  color: var(--color-accent);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}
.site-nav { display: flex; gap: 1.4rem; }
.site-nav a {
  color: var(--color-white);
  text-decoration: none;
  font-size: 0.92rem;
}
.site-nav a:hover { color: var(--color-accent); }

/* ---------- Hero ---------- */
.hero {
  padding: 3rem 0 1.75rem;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 2rem;
}
.hero h1 {
  font-weight: 500;
  font-size: 2.1rem;
  margin: 0 0 0.6rem;
  color: var(--color-base);
  line-height: 1.2;
}
.hero .lead {
  margin: 0;
  max-width: var(--w-prose);
  font-size: 1.05rem;
}

/* ---------- Controles (búsqueda + filtros) ---------- */
.controls {
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.search-wrap input[type="search"] {
  width: 100%;
  padding: 0.8rem 1rem;
  font: inherit;
  font-size: 1rem;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  background: var(--color-white);
  color: var(--color-text);
}
.search-wrap input[type="search"]:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.filter-chip {
  font: inherit;
  font-size: 0.88rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  color: var(--color-text);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.filter-chip:hover { border-color: var(--color-accent); }
.filter-chip.is-active {
  background: var(--color-base);
  color: var(--color-white);
  border-color: var(--color-base);
}
.filter-chip.is-active .chip-count { color: var(--color-accent); }
.chip-count {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-left: 0.25rem;
}
.result-count {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-muted);
  font-variant: small-caps;
  letter-spacing: 0.04em;
}

/* ---------- Lista de entradas ---------- */
.archive-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.entry {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-line);
}
.entry-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: baseline;
  margin-bottom: 0.4rem;
}
.entry-head time {
  font-size: 0.85rem;
  color: var(--color-muted);
  font-variant: small-caps;
  letter-spacing: 0.05em;
}
.entry-cats {
  font-size: 0.82rem;
  color: var(--color-accent);
  font-variant: small-caps;
  letter-spacing: 0.05em;
  font-weight: 500;
}
.entry-title {
  margin: 0 0 0.45rem;
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.3;
}
.entry-title a {
  color: var(--color-base);
  text-decoration: none;
}
.entry-title a:hover { color: var(--color-accent); text-decoration: underline; }
.entry-excerpt {
  margin: 0;
  color: var(--color-text);
  font-size: 0.97rem;
  max-width: var(--w-prose);
}
.no-results {
  padding: 3rem 0;
  text-align: center;
  color: var(--color-muted);
}

/* ---------- Post ---------- */
.post {
  max-width: var(--w-prose);
  margin: 0 auto;
  padding: 2.5rem 0 1rem;
}
.post-head { margin-bottom: 2rem; }
.breadcrumb {
  margin: 0 0 1rem;
  font-size: 0.88rem;
}
.breadcrumb a { color: var(--color-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-base); }
.post-head h1 {
  font-weight: 500;
  font-size: 1.95rem;
  line-height: 1.25;
  color: var(--color-base);
  margin: 0 0 0.75rem;
}
.post-meta {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.post-meta time { font-variant: small-caps; letter-spacing: 0.05em; }
.post-meta .post-cats { color: var(--color-accent); font-variant: small-caps; letter-spacing: 0.05em; }
.post-meta .dot { color: var(--color-line); }

/* Cuerpo */
.post-body {
  font-size: 1.02rem;
  line-height: 1.7;
}
.post-body h2,
.post-body h3,
.post-body h4 {
  font-weight: 500;
  color: var(--color-base);
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.post-body h2 { font-size: 1.4rem; }
.post-body h3 { font-size: 1.2rem; }
.post-body h4 { font-size: 1.05rem; }
.post-body p { margin: 0 0 1.1rem; }
.post-body ul, .post-body ol { margin: 0 0 1.1rem; padding-left: 1.4rem; }
.post-body li { margin-bottom: 0.4rem; }
.post-body a { color: var(--color-base); }
.post-body a:hover { color: var(--color-base-hover); }
.post-body blockquote {
  margin: 1.5rem 0;
  padding: 0.5rem 0 0.5rem 1.1rem;
  border-left: 3px solid var(--color-accent);
  color: var(--color-text);
  font-style: italic;
}
.post-body strong, .post-body b { color: var(--color-base); font-weight: 500; }

/* Footer post */
.post-foot {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-line);
}
.archive-note {
  font-size: 0.88rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
}
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.post-nav a {
  display: flex;
  flex-direction: column;
  padding: 0.85rem 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  text-decoration: none;
  color: var(--color-text);
  transition: border-color 0.15s ease;
}
.post-nav a:hover { border-color: var(--color-accent); }
.post-nav .nav-next { text-align: right; }
.nav-label {
  font-size: 0.78rem;
  color: var(--color-accent);
  font-variant: small-caps;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}
.nav-title {
  font-size: 0.93rem;
  color: var(--color-base);
  font-weight: 500;
  line-height: 1.3;
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 4rem;
  padding: 2rem 0;
  background: var(--color-base);
  color: var(--color-white);
  font-size: 0.88rem;
}
.site-footer p { margin: 0.3rem 0; }
.site-footer a { color: var(--color-accent); }
.site-footer a:hover { color: var(--color-white); }

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  html { font-size: 16px; }
  .hero h1 { font-size: 1.7rem; }
  .post-head h1 { font-size: 1.55rem; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav .nav-next { text-align: left; }
  .site-header .container { gap: 0.75rem; }
}