/* Fuentes auto-hosteadas (subset latin). Fraunces, Newsreader: OFL. IBM Plex Mono: OFL. */
@font-face {
  font-family: 'Fraunces';
  font-style: italic;
  font-weight: 400 600;
  font-display: swap;
  src: url(/assets/fonts/fraunces-italic-400-600.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: 'Fraunces';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url(/assets/fonts/fraunces-normal-400-800.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: 400;
  font-display: swap;
  src: url(/assets/fonts/ibm-plex-mono-normal-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-normal-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: 'Newsreader';
  font-style: italic;
  font-weight: 400 500;
  font-display: swap;
  src: url(/assets/fonts/newsreader-italic-400-500.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: 'Newsreader';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url(/assets/fonts/newsreader-normal-400-600.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;
}
/* Diseño Abierto — sistema visual editorial */
:root {
  --paper: #f4f1ea;
  --paper-2: #ebe6db;
  --card: #fbf9f4;
  --ink: #141413;
  --ink-2: #3d3b36;
  --ink-3: #6b675e;
  --rule: #d6d0c3;
  --accent: #2340ff;
  --accent-ink: #1a2fd1;
  --accent-soft: #dfe3ff;
  --ok: #17663a;
  --bad: #a3271b;
  --t-diseno: #e0482b;
  --t-ia-creativa: #6d3df2;
  --t-branding: #c98a00;
  --t-web: #0f8a7a;
  --t-negocios-creativos: #2340ff;
  --serif-d: "Fraunces", "Iowan Old Style", Georgia, serif;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --w: 1180px;
  --measure: 40rem;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #111110;
    --paper-2: #1b1a18;
    --card: #181816;
    --ink: #eeebe3;
    --ink-2: #c9c5bb;
    --ink-3: #9a958a;
    --rule: #34322d;
    --accent: #8f9dff;
    --accent-ink: #b3bdff;
    --accent-soft: #23284d;
    --ok: #5fcf8c;
    --bad: #ff8a7a;
    --t-diseno: #ff7a5c;
    --t-ia-creativa: #a98bff;
    --t-branding: #f0b434;
    --t-web: #3cc9b4;
    --t-negocios-creativos: #8f9dff;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.125rem/1.6 var(--serif);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--accent-ink); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--accent); color: #fff; }

.skip { position: absolute; left: -9999px; top: 8px; z-index: 10; background: var(--ink); color: var(--paper); padding: 8px 14px; font: 500 .85rem var(--mono); }
.skip:focus { left: 8px; }

.wrap { max-width: var(--w); margin-inline: auto; padding-inline: var(--gutter); }
.block { margin-block: clamp(48px, 7vw, 88px); }

[data-topic="diseno"] { --t: var(--t-diseno); }
[data-topic="ia-creativa"] { --t: var(--t-ia-creativa); }
[data-topic="branding"] { --t: var(--t-branding); }
[data-topic="web"] { --t: var(--t-web); }
[data-topic="negocios-creativos"] { --t: var(--t-negocios-creativos); }

/* ---------- masthead ---------- */
.masthead { border-bottom: 1px solid var(--ink); background: var(--paper); position: sticky; top: 0; z-index: 5; }
.masthead__inner { max-width: var(--w); margin-inline: auto; padding: 14px var(--gutter); display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.wordmark { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 600 1.35rem/1 var(--serif-d); letter-spacing: -.02em; margin: 0; }
.wordmark em { font-style: italic; font-weight: 400; margin-left: .12em; }
.wordmark__mark { width: 22px; height: 22px; border: 2.5px solid var(--ink); border-radius: 50%; position: relative; flex: none; }
.wordmark__mark::after { content: ""; position: absolute; right: -4px; top: 50%; width: 9px; height: 9px; margin-top: -4.5px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 0 2.5px var(--paper); }
.mainnav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: clamp(12px, 2.4vw, 28px); flex-wrap: wrap; }
.mainnav a { font: 500 .8rem/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; text-decoration: none; padding: 6px 0; display: inline-block; border-bottom: 2px solid transparent; }
.mainnav a:hover, .mainnav a[aria-current="page"] { border-color: var(--accent); color: var(--ink); }

/* ---------- tipografía base ---------- */
.eyebrow { font: 500 .78rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin: 0 0 14px; }
.section-h { font: 500 .8rem/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; margin: 0 0 22px; padding-top: 12px; border-top: 1px solid var(--ink); display: flex; justify-content: space-between; }
.tag { font: 500 .72rem/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; text-decoration: none; color: var(--t, var(--accent)); display: inline-flex; align-items: center; gap: 6px; }
.tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }

/* ---------- hero ---------- */
.hero { padding-block: clamp(40px, 8vw, 96px) clamp(28px, 4vw, 48px); }
.hero__title { font: 400 clamp(2.3rem, 6.6vw, 5.4rem)/1.02 var(--serif-d); letter-spacing: -.02em; margin: 0; max-width: 16ch; font-variation-settings: "opsz" 144; }
.hero__title em { font-style: italic; color: var(--accent); }
.hero__dek { font-size: clamp(1.1rem, 1.7vw, 1.35rem); color: var(--ink-2); max-width: 36rem; margin: 22px 0 0; }

/* ---------- front ---------- */
.front { display: grid; gap: 0; grid-template-columns: minmax(0, 1fr); background: linear-gradient(var(--ink), var(--ink)) var(--gutter) 0 / calc(100% - 2 * var(--gutter)) 1px no-repeat; }
@media (min-width: 900px) { .front { grid-template-columns: 1.35fr 1fr; } .front__lead { border-right: 1px solid var(--rule); padding-right: 32px; } .front__side { padding-left: 32px; } }
.front__side .card { padding-block: 18px; border-bottom: 1px solid var(--rule); }
.front__side .card:last-child { border-bottom: 0; }

/* ---------- cards ---------- */
.card { padding-block: 22px; }
.card__meta { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; margin: 0 0 10px; font: 400 .74rem/1 var(--mono); color: var(--ink-3); text-transform: uppercase; letter-spacing: .05em; }
.card__title { font: 500 1.35rem/1.15 var(--serif-d); letter-spacing: -.015em; margin: 0 0 8px; }
.card__title a { text-decoration: none; }
.card__title a:hover { text-decoration: underline; }
.card__dek { margin: 0; color: var(--ink-2); font-size: 1rem; line-height: 1.5; }
.card--big { padding-top: 28px; }
.card--big .card__title { font-size: clamp(1.9rem, 3.8vw, 3rem); line-height: 1.06; letter-spacing: -.018em; font-weight: 400; }
.card--big .card__dek { font-size: 1.2rem; max-width: 34rem; }
.card--big::before { content: ""; display: block; height: 10px; width: 64px; background: var(--t); margin-bottom: 22px; }

.grid { display: grid; gap: 0 32px; }
.grid--2 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); }
.grid > .card { border-top: 1px solid var(--rule); }
.more { margin-top: 24px; font: 500 .85rem var(--mono); }

/* ---------- topics ---------- */
.topiclist { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 210px), 1fr)); border-left: 1px solid var(--rule); }
.topiclist li { border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.topiclist a { display: flex; flex-direction: column; gap: 8px; padding: 18px; height: 100%; text-decoration: none; transition: background .15s; }
.topiclist a:hover { background: var(--card); color: inherit; }
.topiclist strong { font: 500 1.3rem/1.1 var(--serif-d); }
.topiclist span { font-size: .95rem; color: var(--ink-2); line-height: 1.45; }
.topiclist .topiclist__k { font: 500 .75rem var(--mono); color: var(--t, var(--accent)); }
.topiclist li[data-topic] a { border-top: 4px solid var(--t); }
.topiclist .topiclist__n { font: 400 .75rem var(--mono); color: var(--ink-3); margin-top: auto; text-transform: uppercase; letter-spacing: .05em; }
.topiclist--big strong { font-size: 1.7rem; }

/* ---------- tools ---------- */
.toolcard { display: flex; flex-direction: column; gap: 8px; padding: 22px; margin-bottom: 20px; border: 1px solid var(--ink); background: var(--card); text-decoration: none; box-shadow: 4px 4px 0 var(--ink); transition: transform .15s, box-shadow .15s; }
.toolcard:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--accent); color: inherit; }
.toolcard strong { font: 500 1.3rem/1.15 var(--serif-d); }
.toolcard span { color: var(--ink-2); font-size: 1rem; line-height: 1.45; }
.toolcard .toolcard__k { font: 500 .72rem var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--accent); }

.manifesto__list { margin: 0 0 20px; padding: 0; list-style: none; counter-reset: m; display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); }
.manifesto__list li { counter-increment: m; font-size: 1.05rem; color: var(--ink-2); }
.manifesto__list li::before { content: "0" counter(m); display: block; font: 400 2.4rem/1 var(--serif-d); color: var(--accent); margin-bottom: 8px; }
.manifesto__list strong { color: var(--ink); }
.manifesto p { font: 500 .85rem var(--mono); }

/* ---------- page head ---------- */
.pagehead { padding-block: clamp(28px, 6vw, 64px) clamp(8px, 2vw, 20px); }
.pagehead__title { font: 400 clamp(2.2rem, 5.6vw, 4.2rem)/1.06 var(--serif-d); letter-spacing: -.018em; margin: 0; max-width: 20ch; }
.pagehead[data-topic] .pagehead__title { border-left: 10px solid var(--t); padding-left: 18px; }
.pagehead__dek { font-size: clamp(1.1rem, 1.6vw, 1.3rem); color: var(--ink-2); max-width: 40rem; margin: 18px 0 0; }
.crumbs ol { list-style: none; margin: 0 0 20px; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 0; font: 400 .74rem/1.4 var(--mono); color: var(--ink-3); text-transform: uppercase; letter-spacing: .04em; }
.crumbs li:not(:last-child)::after { content: "/"; margin: 0 8px; opacity: .6; }
.crumbs li[aria-current] { max-width: 40ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.crumbs a { text-decoration: none; }
.filters { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.filters a { display: inline-block; padding: 7px 12px; border: 1px solid var(--rule); border-radius: 99px; font: 500 .75rem var(--mono); text-decoration: none; text-transform: uppercase; letter-spacing: .04em; }
.filters a:hover { border-color: var(--accent); }
.empty { color: var(--ink-3); font-style: italic; }

/* ---------- list ---------- */
.list { border-top: 1px solid var(--ink); }
.row { display: grid; gap: 6px 28px; grid-template-columns: 1fr; padding: 22px 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 820px) { .row { grid-template-columns: 180px 1fr 140px; } }
.row__meta { margin: 0; display: flex; flex-direction: column; gap: 8px; font: 400 .74rem var(--mono); color: var(--ink-3); text-transform: uppercase; }
.row__title { font: 500 1.45rem/1.15 var(--serif-d); margin: 0 0 6px; letter-spacing: -.015em; }
.row__title a { text-decoration: none; }
.row__title a:hover { text-decoration: underline; }
.row__dek { margin: 0; color: var(--ink-2); font-size: 1rem; }
.row__min { margin: 0; font: 400 .74rem var(--mono); color: var(--ink-3); text-transform: uppercase; }
@media (min-width: 820px) { .row__min { text-align: right; } }

/* ---------- article ---------- */
.post__head { padding-block: clamp(28px, 6vw, 64px) 28px; }
.post__kicker { display: flex; gap: 14px; align-items: center; margin: 0 0 18px; font: 400 .74rem var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--ink-3); }
.post__title { font: 400 clamp(2.1rem, 5.4vw, 4.1rem)/1.06 var(--serif-d); letter-spacing: -.018em; margin: 0; max-width: 22ch; font-variation-settings: "opsz" 144; }
.post__dek { font-size: clamp(1.15rem, 1.8vw, 1.4rem); line-height: 1.45; color: var(--ink-2); max-width: 42rem; margin: 20px 0 0; }
.byline { font: 400 .8rem/1.6 var(--mono); color: var(--ink-3); margin: 26px 0 0; padding-top: 14px; border-top: 1px solid var(--rule); }
.byline a { color: var(--ink); }
.post__grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; }
@media (min-width: 1040px) { .post__grid { grid-template-columns: 240px minmax(0, 1fr); gap: 64px; } .post__side { position: relative; } .toc { position: sticky; top: 92px; } }
.toc { border-top: 3px solid var(--t, var(--ink)); padding-top: 12px; font-size: .95rem; }
.toc__h { font: 500 .72rem var(--mono); text-transform: uppercase; letter-spacing: .07em; margin: 0 0 10px; color: var(--ink-3); }
.toc ol { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; }
.toc a { text-decoration: none; color: var(--ink-2); line-height: 1.3; }
.toc a:hover { color: var(--accent-ink); text-decoration: underline; }
@media (max-width: 1039px) { .toc { background: var(--card); padding: 14px 16px; border: 1px solid var(--rule); border-top: 3px solid var(--t, var(--ink)); } }

.prose { max-width: var(--measure); font-size: 1.2rem; line-height: 1.65; }
.wrap.prose--page { max-width: var(--w); font-size: 1.15rem; }
.wrap.prose--page > * { max-width: var(--measure); }
.prose > :first-child { margin-top: 0; }
.prose p { margin: 0 0 1.1em; }
.prose h2 { font: 500 clamp(1.55rem, 2.6vw, 2rem)/1.15 var(--serif-d); letter-spacing: -.02em; margin: 2.1em 0 .6em; scroll-margin-top: 90px; }
.prose h3 { font: 600 1.3rem/1.25 var(--serif-d); margin: 1.7em 0 .5em; scroll-margin-top: 90px; }
.prose h4 { font: 500 .85rem var(--mono); text-transform: uppercase; letter-spacing: .06em; margin: 1.6em 0 .5em; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin-bottom: .45em; }
.prose li::marker { color: var(--t, var(--accent)); }
.prose strong { font-weight: 600; }
.prose a { color: var(--accent-ink); }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 2.5em 0; }
.prose blockquote { margin: 1.6em 0; padding: 0 0 0 22px; border-left: 3px solid var(--t, var(--accent)); font: italic 400 1.4rem/1.4 var(--serif-d); color: var(--ink); }
.prose blockquote p { margin: 0; }
.prose code { font: .86em var(--mono); background: var(--paper-2); padding: .1em .35em; border-radius: 3px; }
.prose pre { background: var(--ink); color: var(--paper); padding: 18px 20px; overflow-x: auto; font: .88rem/1.55 var(--mono); border-radius: 4px; margin: 1.4em 0; }
.prose pre code { background: none; padding: 0; color: inherit; font-size: inherit; white-space: pre-wrap; }
.table-wrap { overflow-x: auto; margin: 1.5em 0; border-top: 2px solid var(--ink); }
.prose table, .contrast { border-collapse: collapse; width: 100%; font-size: 1rem; line-height: 1.4; }
.prose th, .prose td, .contrast th, .contrast td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--rule); }
.prose thead th, .contrast thead th { font: 500 .72rem var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--ink-3); }
.prose tbody th { font-weight: 600; }

.callout { margin: 1.8em 0; padding: 18px 20px; background: var(--card); border: 1px solid var(--rule); border-left: 4px solid var(--accent); font-size: 1.05rem; }
.callout > :last-child { margin-bottom: 0; }
.callout__label { font: 500 .72rem var(--mono) !important; text-transform: uppercase; letter-spacing: .07em; color: var(--accent-ink); margin: 0 0 8px !important; }
.callout--atencion { border-left-color: var(--t-diseno); }
.callout--atencion .callout__label { color: var(--t-diseno); }
.callout--chimi { border-left-color: var(--t-branding); }
.callout--chimi .callout__label { color: var(--t-branding); }
.prompt { margin: 1.6em 0; border: 1px solid var(--ink); background: var(--card); }
.prompt figcaption { font: 500 .72rem var(--mono); text-transform: uppercase; letter-spacing: .07em; padding: 9px 14px; border-bottom: 1px solid var(--ink); background: var(--paper-2); }
.prompt > p, .prompt > ul, .prompt > ol { margin: 14px 16px; font: .92rem/1.6 var(--mono); }
.prompt pre { margin: 0; border-radius: 0; }
.checklist { list-style: none; padding-left: 0 !important; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; }
.checklist .box { flex: none; width: 18px; height: 18px; margin-top: .3em; border: 1.5px solid var(--ink); border-radius: 3px; }

.post__foot { margin-top: 64px; }
.authorbox { border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule); padding: 18px 0; max-width: 52rem; font-size: 1rem; color: var(--ink-2); margin-bottom: 56px; }
.authorbox p { margin: 0; }
.authorbox .authorbox__h { font: 500 .72rem var(--mono); text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); margin-bottom: 8px; }
.authorbox a { color: var(--ink); text-decoration: none; }
.related { margin-bottom: 40px; }

/* ---------- herramientas ---------- */
.tool { margin-top: 20px; }
.tool__grid { display: grid; gap: 24px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 960px) { .tool__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); } .tool__grid--pal { grid-template-columns: 320px minmax(0, 1fr); } .panel--sticky { position: sticky; top: 90px; } }
.panel { background: var(--card); border: 1px solid var(--ink); padding: clamp(16px, 3vw, 26px); min-width: 0; }
.tool__h { font: 500 .75rem var(--mono); text-transform: uppercase; letter-spacing: .07em; margin: 0 0 12px; color: var(--ink-3); }
.tool__h:not(:first-child) { margin-top: 26px; }
.tool__h small { text-transform: none; letter-spacing: 0; }
.field { display: flex; flex-direction: column; gap: 6px; margin: 0 0 16px; border: 0; padding: 0; min-width: 0; }
.field > span, .field > legend { font: 500 .78rem var(--mono); text-transform: uppercase; letter-spacing: .05em; padding: 0; }
.field b { color: var(--accent); font-weight: 500; }
.field small { font-size: .88rem; color: var(--ink-3); }
.field-row { display: grid; gap: 0 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); }
input[type=text], input[type=url], input:not([type]), textarea, select {
  width: 100%; font: 400 1rem/1.4 var(--serif); color: var(--ink); background: var(--paper); border: 1px solid var(--ink-3); border-radius: 3px; padding: 10px 12px;
}
textarea { min-height: 84px; resize: vertical; }
input:focus, textarea:focus { border-color: var(--accent); outline: 2px solid var(--accent); outline-offset: 0; }
input[aria-invalid="true"] { border-color: var(--bad); }
.colorpick { display: flex; gap: 10px; }
.colorpick input[type=color] { width: 52px; height: 46px; padding: 2px; border: 1px solid var(--ink-3); background: var(--paper); border-radius: 3px; flex: none; cursor: pointer; }
.colorpick input[type=text] { font-family: var(--mono); }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.seg span { display: inline-block; padding: 8px 12px; border: 1px solid var(--ink-3); border-radius: 99px; font: 500 .78rem var(--mono); }
.seg input:checked + span { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.seg input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .98rem; margin-bottom: 8px; }
.check input { margin-top: .3em; accent-color: var(--accent); width: 18px; height: 18px; }
.btn { appearance: none; font: 500 .8rem/1 var(--mono); text-transform: uppercase; letter-spacing: .05em; padding: 13px 16px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); cursor: pointer; border-radius: 2px; min-height: 44px; }
.btn:hover:not(:disabled) { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--sm { padding: 8px 12px; min-height: 36px; font-size: .72rem; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.status { min-height: 1.4em; font: 400 .85rem var(--mono); color: var(--ok); margin: 10px 0 0; }
.result { display: block; font: 400 .92rem/1.55 var(--mono); background: var(--paper); border: 1px dashed var(--ink-3); padding: 14px; word-break: break-all; min-height: 3em; }
.result--pre { white-space: pre-wrap; word-break: normal; overflow-wrap: anywhere; margin: 0; max-height: 60vh; overflow: auto; }
.warnings { list-style: none; padding: 0; margin: 10px 0 0; font-size: .95rem; color: var(--bad); }
.warnings li::before { content: "⚠ "; }
.history { padding-left: 1.3em; margin: 0 0 10px; font: .82rem/1.5 var(--mono); word-break: break-all; }
.history li { margin-bottom: 8px; }
.history button { font: inherit; background: none; border: 0; color: var(--accent-ink); cursor: pointer; text-decoration: underline; padding: 0; margin-left: 6px; }

.swatches { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(76px, 1fr)); gap: 6px; }
.swatches li { display: flex; flex-direction: column; }
.swatches button { appearance: none; border: 1px solid rgba(0,0,0,.12); height: 56px; border-radius: 3px; cursor: pointer; }
.swatches button:hover { transform: translateY(-1px); }
.swatches span { font: 400 .7rem/1.3 var(--mono); margin-top: 4px; color: var(--ink-2); }
.swatches--harmony { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
.swatches--harmony button { height: 76px; }
.contrast .sample { display: inline-block; padding: 4px 10px; border-radius: 3px; font: 600 1rem var(--serif); border: 1px solid rgba(0,0,0,.1); white-space: nowrap; }
.contrast td, .contrast th { font-size: .9rem; }
.pass { color: var(--ok); font-weight: 600; }
.fail { color: var(--bad); }
.contrast th[scope=row] { font: 400 .82rem var(--mono); }

.brief .q { border-top: 1px solid var(--rule); padding-top: 16px; }
.brief .q label > span { display: flex; gap: 10px; align-items: baseline; }
.brief .q label > span i { font-style: normal; color: var(--accent); }
.brief .q small { display: block; margin-bottom: 6px; }
.progress { display: flex; flex-direction: column; gap: 8px; font: 500 .78rem var(--mono); text-transform: uppercase; margin: 0 0 18px; }
.progress__bar { display: block; height: 6px; background: var(--paper-2); border-radius: 99px; overflow: hidden; }
.progress__bar span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .25s; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--ink); margin-top: 96px; background: var(--paper-2); }
.footer__inner { max-width: var(--w); margin-inline: auto; padding: 40px var(--gutter) 24px; display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr)); }
.footer__brand { grid-column: 1 / -1; max-width: 34rem; color: var(--ink-2); font-size: 1rem; }
@media (min-width: 900px) { .footer__inner { grid-template-columns: 2fr 1fr 1fr 1fr; } .footer__brand { grid-column: auto; } }
.footer__h { font: 500 .72rem var(--mono); text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); margin: 0 0 12px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 1rem; }
.footer a { text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.wordmark--footer { margin-bottom: 12px; }
.footer__legal { max-width: var(--w); margin: 0 auto; padding: 16px var(--gutter) 32px; font: 400 .74rem var(--mono); color: var(--ink-3); border-top: 1px solid var(--rule); }

.notfound { min-height: 40vh; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; } }
@media print { .masthead, .footer, .post__side, .related { display: none; } body { background: #fff; } }

/* ---------- video, figuras, cursos, galería ---------- */
.video, .fig { margin: 1.8em 0; }
.video__btn { position: relative; display: block; aspect-ratio: 16 / 9; overflow: hidden; background: #000; border: 1px solid var(--ink); }
.video__btn img { width: 100%; height: 100%; object-fit: cover; opacity: .85; transition: opacity .2s; }
.video__btn:hover img { opacity: 1; }
.video__play { position: absolute; left: 50%; top: 50%; width: 76px; height: 76px; margin: -38px 0 0 -38px; border-radius: 50%; background: var(--accent); box-shadow: 0 6px 24px rgba(0,0,0,.35); }
.video__play::after { content: ""; position: absolute; left: 31px; top: 24px; border-style: solid; border-width: 14px 0 14px 22px; border-color: transparent transparent transparent #fff; }
.video iframe { display: block; width: 100%; aspect-ratio: 16 / 9; border: 1px solid var(--ink); }
.video figcaption, .fig figcaption { font-size: .95rem; color: var(--ink-2); margin-top: 10px; line-height: 1.45; }
.video figcaption strong { display: block; font: 500 1.05rem/1.3 var(--serif-d); color: var(--ink); margin-bottom: 4px; }
.video figcaption p { margin: 0; }
.fig img { display: block; width: 100%; height: auto; border: 1px solid var(--rule); background: var(--paper-2); }
@media (min-width: 1040px) { .prose .fig--wide, .prose .video { margin-right: -8rem; } }
.coursebox { max-width: 52rem; margin: 0 0 32px; padding: 20px 22px; border: 1px solid var(--ink); background: var(--card); box-shadow: 4px 4px 0 var(--t, var(--accent)); font-size: 1rem; color: var(--ink-2); }
.coursebox p { margin: 0 0 8px; }
.coursebox__k { font: 500 .72rem var(--mono) !important; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); }
.coursebox__t { font: 500 1.3rem/1.2 var(--serif-d); }
.coursebox__t a { color: var(--ink); }
.coursebox__m { font: 400 .78rem/1.5 var(--mono); color: var(--ink-3); margin: 0 !important; }
.linklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 0 32px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); }
.linklist a { display: flex; flex-direction: column; gap: 4px; padding: 14px 0; border-top: 1px solid var(--rule); text-decoration: none; }
.linklist strong { font: 500 1.25rem var(--serif-d); }
.linklist strong::after { content: " ↗"; color: var(--accent); }
.linklist span { color: var(--ink-2); font-size: .98rem; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); gap: 20px 16px; align-items: start; }
.gallery figure { margin: 0; }
.gallery img { display: block; width: 100%; height: auto; border: 1px solid var(--rule); background: var(--paper-2); }
.gallery figcaption { font: 400 .74rem/1.4 var(--mono); color: var(--ink-3); margin-top: 6px; }
.fig__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.fig__grid img { aspect-ratio: auto; }