/* robertbravo.com — hoja de estilos única, sin dependencias.
   Tipografía serif para leer largo. Paleta heredada del sitio WordPress
   (fondo #ecf0f3, verde #00965f, azul #008af4) sobre un estilo editorial:
   líneas finas en lugar de sombras. */

/* Fuentes autoalojadas (subconjunto latino: español incluido). */
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/ibm-plex-mono-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/assets/fonts/ibm-plex-mono-500.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("/assets/fonts/ibm-plex-sans-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Newsreader";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/newsreader-italic-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("/assets/fonts/newsreader-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #ecf0f3;
  --surface: #ffffff;
  --ink: #1e2125;
  --muted: #565c64;
  --line: #d6dde3;
  --accent: #00965f;
  --accent-ink: #007a4d;
  --accent-soft: #dcefe6;
  --mark: #0070c9;

  
  --font-display: "Newsreader", "Iowan Old Style", "Charter", Georgia, serif;
  --font-body: "Newsreader", "Iowan Old Style", "Charter", Georgia, serif;
  --font-ui: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --step--1: 0.875rem;
  --step-0: 1rem;
  --step-1: 1.25rem;
  --step-2: 1.6rem;
  --step-3: clamp(2rem, 4.5vw, 2.75rem);
  --step-4: clamp(2.5rem, 7vw, 4.25rem);

  --wrap: 72rem;
  --measure: 40rem;
  --gutter: clamp(1rem, 4vw, 2rem);
  --radius: 6px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #212428;
    --surface: #23272b;
    --ink: #e2e8ee;
    --muted: #a3acb8;
    --line: #2e3338;
    --accent: #1fc38a;
    --accent-ink: #3fd8a0;
    --accent-soft: #1a3a30;
    --mark: #4fb0ff;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #212428;
  --surface: #23272b;
  --ink: #e2e8ee;
  --muted: #a3acb8;
  --line: #2e3338;
  --accent: #1fc38a;
  --accent-ink: #3fd8a0;
  --accent-soft: #1a3a30;
  --mark: #4fb0ff;
  color-scheme: dark;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; }
  .btn:active, .icon-btn:active, .chip:active { transform: none; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: var(--step-0);
  line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-ink); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
}

.skip {
  position: absolute; left: -999px; top: 0.5rem;
  background: var(--ink); color: var(--bg); padding: 0.5rem 1rem; z-index: 100;
}
.skip:focus { left: 0.5rem; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 3.75rem;
}
.brand {
  display: flex; align-items: center; gap: 0.6rem;
  color: var(--ink); text-decoration: none;
  font-family: var(--font-display); font-size: 1.2rem; font-weight: 500;
}
.brand-mark {
  display: grid; place-items: center;
  width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--ink); color: var(--bg);
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500;
}
.nav { display: flex; align-items: center; gap: 0.25rem; }
.nav-list { display: flex; gap: 0.25rem; list-style: none; margin: 0; padding: 0; }
.nav-list a {
  display: block; padding: 0.45rem 0.75rem; border-radius: var(--radius);
  color: var(--muted); text-decoration: none; font-size: 0.95rem;
}
.nav-list a:hover, .nav-list a[aria-current="page"] { color: var(--ink); background: var(--accent-soft); }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 2.5rem; height: 2.5rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: transparent; color: var(--ink); cursor: pointer;
}
.icon-btn:hover { border-color: var(--muted); }
.icon-btn svg { width: 1.1rem; height: 1.1rem; }
.menu-btn { display: none; }

@media (max-width: 44rem) {
  .menu-btn { display: inline-grid; }
  .nav-list {
    position: absolute; inset: 100% 0 auto 0;
    flex-direction: column; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter) 1rem;
  }
  .nav-list:not(.is-open) { display: none; }
  .nav-list a { padding: 0.75rem 0.5rem; font-size: 1.05rem; }
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.15rem; border-radius: var(--radius);
  font-family: var(--font-ui); font-size: 0.95rem; font-weight: 500;
  text-decoration: none; border: 1px solid var(--ink); cursor: pointer;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--accent-soft); }

/* ---------- Portada ---------- */
.hero { padding-block: clamp(3rem, 9vw, 6.5rem) clamp(2.5rem, 6vw, 4rem); }
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem); align-items: center;
}
.hero h1 { font-size: var(--step-4); margin-block: 0.75rem 1.25rem; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-lede { font-family: var(--font-body); font-size: var(--step-1); color: var(--muted); max-width: 34rem; margin: 0 0 1.75rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.hero-facts {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem;
  margin: 2rem 0 0; padding: 0; list-style: none;
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted);
}
.hero-facts strong { color: var(--ink); font-weight: 500; }

.portrait {
  position: relative; margin: 0; aspect-ratio: 4 / 5; max-width: 100%;
  border-radius: var(--radius); overflow: hidden;
  background: var(--accent-soft);
  display: grid; place-items: center;
}
.portrait::before {
  content: "RB"; font-family: var(--font-display); font-size: 5rem; color: var(--accent);
}
.portrait img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.portrait figcaption {
  position: absolute; left: 0.75rem; bottom: 0.75rem;
  font-family: var(--font-mono); font-size: 0.7rem;
  background: var(--surface); color: var(--ink);
  padding: 0.25rem 0.5rem; border-radius: 3px;
}

@media (max-width: 52rem) {
  .hero-grid { grid-template-columns: 1fr; }
  .portrait { max-width: 18rem; }
}

/* ---------- Secciones ---------- */
.section { padding-block: clamp(3rem, 7vw, 5rem); border-top: 1px solid var(--line); }
.section-head {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 0.5rem 1.5rem; margin-bottom: 2rem;
}
.section-head h2 { font-size: var(--step-3); }
.section-head .eyebrow { flex-basis: 100%; }
.section-intro { font-family: var(--font-body); font-size: 1.15rem; color: var(--muted); max-width: var(--measure); margin: 0 0 2rem; }

/* Lista de artículos */
.post-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.post-item { border-top: 1px solid var(--line); }
.post-item:last-child { border-bottom: 1px solid var(--line); }
.post-link {
  display: grid; grid-template-columns: 7.5rem minmax(0, 1fr) auto;
  gap: 0.5rem 1.5rem; align-items: baseline;
  padding-block: 1.5rem; color: inherit; text-decoration: none;
}
.post-link:hover h3 { color: var(--accent); }
.post-date { font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.post-link h3 { font-size: var(--step-2); margin-bottom: 0.4rem; transition: color 0.15s; }
.post-link p { margin: 0; color: var(--muted); font-family: var(--font-body); font-size: 1.05rem; }
.post-meta { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); white-space: nowrap; }
.tag {
  display: inline-block; font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--accent); background: var(--accent-soft);
  padding: 0.1rem 0.5rem; border-radius: 3px;
}
@media (max-width: 40rem) {
  .post-link { grid-template-columns: 1fr; }
  .post-meta { white-space: normal; }
}

/* Competencias */
.skills-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr));
  gap: 2rem 2.5rem; margin: 0; padding: 0; list-style: none;
}
.skills-grid li { display: grid; gap: 0.4rem; align-content: start; }
.skills-grid h3 { font-size: 1.3rem; }
.skills-grid p { margin: 0; color: var(--muted); font-size: 0.97rem; }
.skills-grid .eyebrow { color: var(--mark); }

/* Trayectoria resumida */
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.timeline li {
  display: grid; grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 0.25rem 1.5rem; padding-block: 1.25rem; border-top: 1px solid var(--line);
}
.timeline .years { font-family: var(--font-mono); font-size: 0.85rem; color: var(--muted); font-variant-numeric: tabular-nums; padding-top: 0.2rem; }
.timeline h3 { font-size: 1.3rem; }
.timeline .org { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.95rem; }
.timeline .desc { margin: 0.6rem 0 0; font-size: 0.97rem; max-width: var(--measure); }
@media (max-width: 40rem) { .timeline li { grid-template-columns: 1fr; } }

/* Contacto */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 2.5rem; }
@media (max-width: 48rem) { .contact-grid { grid-template-columns: 1fr; } }
.contact-email {
  display: inline-block; font-family: var(--font-display); font-size: var(--step-2);
  color: var(--ink); text-decoration-color: var(--accent); margin-block: 0.5rem 1rem;
  overflow-wrap: anywhere;
}
.social { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.25rem; }
.social a {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: 0.85rem 0; border-bottom: 1px solid var(--line);
  color: var(--ink); text-decoration: none;
}
.social a span:last-child { font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); }
.social a:hover span:first-child { color: var(--accent); }

/* ---------- Pie ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: 2rem 2.5rem; color: var(--muted); font-size: 0.875rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.site-footer a { color: var(--muted); }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; list-style: none; margin: 0; padding: 0; }

/* ---------- Página interior ---------- */
.page-head { padding-block: clamp(2.5rem, 7vw, 4.5rem) 2rem; }
.page-head h1 { font-size: var(--step-4); margin-top: 0.6rem; }
.page-head p:not(.eyebrow) { font-family: var(--font-body); font-size: var(--step-1); color: var(--muted); max-width: var(--measure); margin: 1rem 0 0; }

/* Blog: buscador y filtros */
.filters { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; margin-bottom: 1.5rem; }
.search {
  flex: 1 1 16rem; min-width: 0;
  padding: 0.65rem 0.9rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); color: var(--ink); font: inherit;
}
.chip {
  padding: 0.45rem 0.85rem; border: 1px solid var(--line); border-radius: 999px;
  background: transparent; color: var(--muted); font: inherit; font-size: 0.875rem; cursor: pointer;
}
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.empty { color: var(--muted); font-style: italic; }

/* CV */
.cv-layout { display: grid; grid-template-columns: 13rem minmax(0, 1fr); gap: 3rem; }
.cv-toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 5rem); align-self: start; }
.cv-toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.25rem; }
.cv-toc a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.cv-toc a:hover { color: var(--accent); }
.cv-block + .cv-block { margin-top: 3.5rem; }
.cv-block > h2 { font-size: var(--step-2); margin-bottom: 1rem; }
@media (max-width: 52rem) {
  .cv-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .cv-toc { position: static; }
  .cv-toc ol { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; }
}
.stack { display: grid; gap: 1.5rem; }
.stack h3 { font-family: var(--font-ui); font-size: 0.8rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.6rem; }
.pills { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; margin: 0; padding: 0; }
.pills li { border: 1px solid var(--line); border-radius: 3px; padding: 0.25rem 0.6rem; font-family: var(--font-mono); font-size: 0.82rem; background: var(--surface); }
.cert-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.cert-table th, .cert-table td { text-align: left; padding: 0.7rem 0.5rem 0.7rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.cert-table th { font-weight: 400; color: var(--muted); font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; }
.cert-table td:last-child { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: var(--muted); white-space: nowrap; }
.table-scroll { overflow-x: auto; }

/* ---------- Artículo ---------- */
.progress {
  position: fixed; top: env(safe-area-inset-top, 0px); left: 0; height: 3px; width: 100%;
  transform-origin: 0 50%; transform: scaleX(0); background: var(--accent); z-index: 60;
}
.article-head { padding-block: clamp(2.5rem, 7vw, 4.5rem) 1.5rem; max-width: 48rem; }
.article-head h1 { font-size: var(--step-3); margin-block: 0.75rem 1rem; }
.article-head .dek { font-family: var(--font-body); font-size: var(--step-1); color: var(--muted); margin: 0 0 1.5rem; }
.byline { display: flex; flex-wrap: wrap; gap: 0.4rem 1.25rem; font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); }
.series-note {
  margin: 1.5rem 0 0; padding: 0.9rem 1rem; border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 0.92rem; background: var(--surface);
}
.series-note ol { margin: 0.4rem 0 0; padding-left: 1.25rem; }
.series-note [aria-current] { font-weight: 600; color: var(--ink); }

.article-layout { display: grid; grid-template-columns: minmax(0, var(--measure)) 15rem; gap: 4rem; padding-bottom: 3rem; }
@media (max-width: 64rem) { .article-layout { grid-template-columns: minmax(0, 1fr); } .toc { display: none; } }
.toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 5rem); align-self: start; font-size: 0.875rem; }
.toc ol { list-style: none; margin: 0.6rem 0 0; padding: 0; display: grid; gap: 0.45rem; border-left: 1px solid var(--line); }
.toc a { display: block; padding-left: 0.9rem; margin-left: -1px; border-left: 2px solid transparent; color: var(--muted); text-decoration: none; line-height: 1.35; }
.toc a.is-active { color: var(--ink); border-left-color: var(--accent); }

.prose { font-family: var(--font-body); font-size: 1.2rem; line-height: 1.7; min-width: 0; }
.prose > * + * { margin-top: 1.15em; }
.prose p, .prose ul, .prose ol { margin-bottom: 0; }
.prose h2 { font-size: 1.75rem; margin-top: 2.2em; scroll-margin-top: 5rem; }
.prose h3 { font-size: 1.35rem; margin-top: 1.8em; }
.prose li + li { margin-top: 0.4em; }
.prose strong { font-weight: 600; }
.prose blockquote, .prose .callout {
  margin-inline: 0; padding: 1rem 1.25rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); font-size: 1.05rem;
}
.prose .callout > :first-child { margin-top: 0; }
.prose .callout p { margin: 0.4em 0 0; }
.prose .callout-title { font-family: var(--font-ui); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); }
.prose code, .prose pre { font-family: var(--font-mono); font-size: 0.85em; }
.prose :not(pre) > code { background: var(--accent-soft); padding: 0.1em 0.35em; border-radius: 3px; }
.prose pre { overflow-x: auto; padding: 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); line-height: 1.5; }
.prose figure { margin-inline: 0; }
.prose figcaption { font-family: var(--font-ui); font-size: 0.85rem; color: var(--muted); margin-top: 0.6rem; }

.equation {
  overflow-x: auto; padding: 1.25rem; text-align: center;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
}
.equation math { font-size: 1.35rem; }

.pipeline {
  display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: stretch; list-style: none; padding: 0 !important;
  font-family: var(--font-ui); font-size: 0.85rem;
}
.pipeline li { flex: 1 1 8rem; margin: 0 !important; padding: 0.75rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); position: relative; }
.pipeline li b { display: block; font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500; color: var(--accent); }

.article-foot { border-top: 1px solid var(--line); padding-block: 2.5rem 3rem; display: grid; gap: 2rem; }
.author-card { display: flex; gap: 1rem; align-items: flex-start; max-width: var(--measure); }
.author-card .brand-mark { width: 3rem; height: 3rem; flex: none; font-size: 0.9rem; }
.author-card p { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.95rem; }
.share { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; font-size: 0.9rem; }
.pager { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: 1rem; }
.pager a { display: block; padding: 1rem 1.25rem; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: var(--ink); background: var(--surface); }
.pager a:hover { border-color: var(--accent); }
.pager .eyebrow { margin-bottom: 0.3rem; }
.pager .next { text-align: right; }

.notfound { padding-block: 6rem; }
.notfound h1 { font-size: var(--step-4); }

/* ---------- Capa editorial ---------- */
/* Una sola profundidad: líneas finas. Sin sombras, sin degradados en superficies. */
:root { --ease-out: cubic-bezier(0.23, 1, 0.32, 1); }
::selection { background: var(--accent-soft); color: var(--ink); }
html { scrollbar-color: var(--line) transparent; }
body { font-variant-numeric: proportional-nums; }
.eyebrow { color: var(--muted); }

/* Controles: respuesta inmediata al pulsar. */
.btn, .icon-btn, .chip {
  transition: transform 160ms var(--ease-out), background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn:active, .icon-btn:active, .chip:active { transform: scale(0.97); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); color: var(--bg); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.search { box-shadow: none; }
.search:focus-visible { border-color: var(--accent); outline-offset: 2px; }
@media (hover: none) {
  .btn-ghost:hover { background: transparent; }
  .icon-btn:hover { border-color: var(--line); }
}

/* Navegación activa: subrayado, no relieve. */
.nav-list a { transition: color 160ms ease, background-color 160ms ease; }
.nav-list a:hover { color: var(--ink); background: var(--accent-soft); }
.nav-list a[aria-current="page"] { color: var(--ink); background: transparent; box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }

/* Portada. */
.hero h1 em { color: var(--accent-ink); }
.portrait { padding: 0; background: var(--accent-soft); border: 1px solid var(--line); }
.portrait::before { color: var(--accent-ink); }
.portrait figcaption { background: var(--bg); }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
.hero-grid > div > * { animation: rise 480ms var(--ease-out) backwards; }
.hero-grid > div > :nth-child(2) { animation-delay: 60ms; }
.hero-grid > div > :nth-child(3) { animation-delay: 120ms; }
.hero-grid > div > :nth-child(4) { animation-delay: 180ms; }
.portrait { animation: rise 600ms var(--ease-out) 120ms backwards; }
@media (prefers-reduced-motion: reduce) {
  @keyframes rise { from { opacity: 0; } }
}

/* Artículo destacado. */
.featured { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(1.25rem, 4vw, 3rem); align-items: center; color: inherit; text-decoration: none; margin-bottom: 2rem; }
.featured-media { aspect-ratio: 16 / 10; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--line); background: var(--accent-soft); }
.featured-media img { width: 100%; height: 100%; object-fit: cover; }
.featured h3 { font-size: var(--step-3); margin: 0.6rem 0 0.75rem; transition: color 160ms ease; }
.featured p { margin: 0; font-family: var(--font-body); font-size: var(--step-1); color: var(--muted); }
.featured .post-meta { display: block; margin-top: 1rem; white-space: normal; }
@media (hover: hover) and (pointer: fine) { .featured:hover h3 { color: var(--accent-ink); } }
@media (max-width: 48rem) { .featured { grid-template-columns: 1fr; } }

/* Listas: filas con línea fina. */
.post-link { padding-block: 1.5rem; transition: color 160ms ease; }
.post-link h3 { transition: color 160ms ease; }
.post-link:hover h3 { color: var(--accent-ink); }
.post-link:active h3 { color: var(--accent-ink); }

/* Territorios: columnas separadas por línea, sin tarjetas. */
.skills-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); gap: 2.5rem 2rem; }
.skills-grid li { padding-top: 1rem; border-top: 1px solid var(--ink); }
.skills-grid h3 { font-size: 1.35rem; }

/* Superficies de lectura. */
.prose .cover img { border-radius: var(--radius); border: 1px solid var(--line); }
.pager a { transition: border-color 160ms ease, color 160ms ease; }
.pager a:hover { border-color: var(--accent); color: var(--ink); }
.pager a:active { border-color: var(--accent-ink); }
.pills li { background: var(--surface); }
.progress { background: var(--accent); height: 3px; }
.toc a { transition: color 160ms ease, border-color 160ms ease; }
.toc a:hover { color: var(--ink); }
.notfound { margin-block: 3rem; }
.social a { padding-inline: 0; transition: color 160ms ease; }
.author-card { padding: 0; }

/* Logotipo (versión negra en tema claro, blanca en oscuro) y emblema del autor. */
.brand { line-height: 0; }
.logo img { height: 84px; width: auto; }
.site-header .wrap { min-height: 6.5rem; padding-block: 0.5rem; }
/* Escritorio: la cabecera con el logo grande no es fija, para no tapar la lectura. En móvil sí lo es. */
@media (min-width: 44.01rem) { .site-header { position: relative; top: auto; } }
.toc, .cv-toc { top: calc(env(safe-area-inset-top, 0px) + 2rem); }
.prose h2, .cv-block { scroll-margin-top: 2rem; }
@media (max-width: 44rem) { .prose h2, .cv-block { scroll-margin-top: 5rem; } }
@media (max-width: 44rem) {
  .logo img { height: 48px; }
  .site-header .wrap { min-height: 4.25rem; }
}
.logo-dark { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-light { display: none; }
  :root:not([data-theme="light"]) .logo-dark { display: block; }
}
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }
.author-card picture { flex: none; }
.author-emblem { width: 3.5rem; height: 3.5rem; border-radius: 50%; background: #fff; border: 1px solid var(--line); }

/* Nota de actualización bajo la firma del artículo. */
.update-note { margin: 1.25rem 0 0; max-width: var(--measure); font-size: 0.92rem; color: var(--muted); }
.update-note::before { content: "Nota: "; font-weight: 600; color: var(--ink); }

/* Temas */
.topic-list { list-style: none; margin: 0 0 4rem; padding: 0; border-top: 1px solid var(--line); }
.topic-list a { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; font-family: var(--font-display); font-size: var(--step-1); transition: color 160ms ease; }
.topic-list a:hover { color: var(--accent-ink); }
.temas { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; margin: 0; font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); }
.temas a { text-decoration: none; }
.temas .tag { transition: background-color 160ms ease; }
.temas a:hover .tag { background: var(--line); }