/* Layout: una sola columna angosta y centrada (estilo carta). Arriba el nombre,
   debajo píldoras que cambian la vista (Todo, Blog, Instagram, Actividad, Sobre mí),
   y al final un bloque fijo con el proyecto AGENTE OS, el contacto y la firma. */
:root {
  --bg: #ffffff;
  --bg2: #ffffff;
  --card: #faf9f6;
  --ink: #26231e;
  --muted: #5f594f;
  --tan: #9d937c;
  --rule: #e6e2d8;
  --accent: #a23c30;
  --accent-ink: #ffffff;
  --pill: #f7ebe6;
  --t1: #f4eee2;
  --t2: #f5e4dd;
  --t3: #ecebdf;
  --t4: #eee8ee;
  --col: 700px;
  --ease: cubic-bezier(.22, .8, .24, 1);
  --serif: Georgia, Gelasio, "Times New Roman", serif;
  --sans: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
}
:root[data-theme="dark"] {
  --bg: #1b1815;
  --bg2: #14120f;
  --card: #211d19;
  --ink: #efe9de;
  --muted: #b3ab9b;
  --tan: #8c8472;
  --rule: #342f27;
  --accent: #e0806e;
  --accent-ink: #1b1815;
  --pill: #3a2622;
  --t1: #2a241c;
  --t2: #33231f;
  --t3: #25271d;
  --t4: #2b2330;
  color-scheme: dark;
}
@view-transition { navigation: auto; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--serif);
  background-color: var(--bg);
  background-image: linear-gradient(180deg, var(--bg) 0, var(--bg2) 100%);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.col { max-width: var(--col); margin: 0 auto; padding-inline: 24px; }
.muted { color: var(--muted); }

/* barra superior y portada */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-block: 22px 0; }
.label, .eyebrow { font-family: var(--sans); font-size: .72rem; letter-spacing: .24em; text-transform: uppercase; color: var(--tan); margin: 0; }
a.label:hover { color: var(--accent); }
.theme { background: none; border: 1px solid var(--rule); color: var(--muted); width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; cursor: pointer; transition: color .2s, border-color .2s; }
.theme:hover { color: var(--accent); border-color: var(--accent); }
.hero { padding-block: 28px 40px; }
.title { font-size: clamp(2.7rem, 10vw, 4.6rem); line-height: 1.02; letter-spacing: -.025em; margin: 14px 0 12px; font-weight: 700; text-wrap: balance; }
.title .dot { color: var(--accent); }
.tagline { font-style: italic; font-size: clamp(1.15rem, 3vw, 1.4rem); color: var(--muted); margin: 0; }
.rule { border: 0; border-top: 1px solid var(--rule); margin: 0; }

/* roles que se escriben bajo el nombre */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.roles { margin: 0 0 18px; font-size: clamp(1.35rem, 4vw, 1.75rem); font-style: italic; color: var(--accent); min-height: 1.5em; display: flex; align-items: center; }
.caret { display: inline-block; width: 2px; height: 1.05em; margin-left: 4px; background: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero .tagline { font-style: normal; font-size: clamp(1.1rem, 2.6vw, 1.25rem); line-height: 1.55; max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.btn.solid { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.btn.solid:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

/* navegación: píldoras con texto; al pasar el puntero el texto da paso al ícono. Al bajar quedan fijas arriba */
.tabs-sentinel { height: 1px; margin-top: -1px; }
.tabs-bar { position: sticky; top: 0; z-index: 20; padding-top: env(safe-area-inset-top, 0px); background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.tabs-in { border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding-block: 26px 22px; transition: padding .35s var(--ease), border-color .35s; }
.tabs { display: flex; justify-content: safe center; gap: 4px; overflow-x: auto; scrollbar-width: none; padding: 2px 0; }
.tabs::-webkit-scrollbar { display: none; }
.tab { position: relative; flex: none; font-family: var(--sans); font-weight: 600; font-size: .95rem; padding: 9px 18px; border-radius: 999px; color: var(--tan); white-space: nowrap; transition: color .2s, background .25s var(--ease); }
.tab-t { display: block; transition: opacity .18s, transform .25s var(--ease); }
.tab-i { position: absolute; inset: 0; display: grid; place-items: center; opacity: 0; transform: translateY(6px); transition: opacity .18s, transform .25s var(--ease); }
.tab-i svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.tab[aria-selected="true"] { background: var(--pill); color: var(--accent); }
@media (hover: hover) {
  .tab:hover { color: var(--accent); background: color-mix(in srgb, var(--pill) 70%, transparent); }
  .tab:hover .tab-t { opacity: 0; transform: translateY(-6px); }
  .tab:hover .tab-i { opacity: 1; transform: none; }
}
.hint { font-family: var(--sans); font-size: .68rem; letter-spacing: .22em; text-transform: uppercase; color: var(--tan); text-align: center; margin: 14px 0 0; max-height: 24px; overflow: hidden; transition: max-height .35s var(--ease), margin .35s var(--ease), opacity .18s; }
.hint.swap { opacity: 0; }
.tabs-bar.stuck .tabs-in { padding-block: 8px; border-top-color: transparent; }
.tabs-bar.stuck .hint { max-height: 0; margin-top: 0; opacity: 0; }
@media (max-width: 560px) {
  .tabs { -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent); mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent); }
  .tab { padding: 8px 14px; font-size: .9rem; }
}

/* vistas */
.view { padding-block: 34px 8px; }
.view[hidden] { display: none; }
.view.show { animation: fade .45s var(--ease); }
@keyframes fade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.view.show .item, .view.show .tile, .view.show .row { animation: rise .6s var(--ease) both; animation-delay: calc(var(--i, 0) * 55ms); }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.empty { padding: 22px; border: 1px dashed var(--rule); border-radius: 12px; color: var(--muted); font-style: italic; margin: 0; }

.meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin: 0 0 8px; font-family: var(--sans); font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--tan); }
.meta .kind { color: var(--accent); font-weight: 600; }
.chip { font-family: var(--sans); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; padding: 2px 8px; border-radius: 999px; border: 1px solid currentColor; color: var(--tan); }

/* enlace para seguir en cada red */
.follow-link:not([hidden]) { display: inline-block; margin: 0 0 22px; font-family: var(--sans); font-size: .95rem; }

/* feed: entradas del blog y publicaciones */
.feed { display: flex; flex-direction: column; }
.item { display: block; padding-block: 28px; border-bottom: 1px solid var(--rule); }
.item:last-child { border-bottom: 0; }
.item.blog h3 { font-size: clamp(1.5rem, 4.4vw, 1.95rem); line-height: 1.15; letter-spacing: -.015em; margin: 0 0 8px; font-weight: 700; text-wrap: balance; transition: color .2s; }
.item.blog.lead h3 { font-size: clamp(1.9rem, 6vw, 2.5rem); }
.item.blog .sum { margin: 0 0 12px; font-size: 1.12rem; color: var(--muted); max-width: 56ch; }
.go { font-family: var(--sans); font-size: .92rem; font-weight: 600; color: var(--accent); border-bottom: 1.5px solid var(--accent); padding-bottom: 1px; }
a.item:hover h3 { color: var(--accent); }
.item.ig { display: grid; grid-template-columns: 1fr 104px; gap: 20px; align-items: center; }
.item.ig .cap { margin: 0; font-size: 1.15rem; line-height: 1.4; }
.thumb { position: relative; width: 104px; aspect-ratio: 1; border-radius: 12px; overflow: hidden; background: var(--t1); border: 1px solid var(--rule); display: grid; place-items: center; color: var(--tan); transition: transform .4s var(--ease); }
a.item.ig:hover .thumb { transform: rotate(-3deg) scale(1.04); }
.thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.thumb svg { width: 28px; height: 28px; }

/* Instagram: cuadrícula */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px; }
.tile { position: relative; aspect-ratio: 4 / 5; border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; padding: 16px; background: var(--t1); border: 1px solid var(--rule); isolation: isolate; transition: transform .4s var(--ease), box-shadow .4s var(--ease); }
.tile:nth-child(4n+2) { background: var(--t2); }
.tile:nth-child(4n+3) { background: var(--t3); }
.tile:nth-child(4n+4) { background: var(--t4); }
a.tile:hover, div.tile:hover { transform: translateY(-5px); box-shadow: 0 22px 36px -26px rgba(60, 40, 20, .5); }
.tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -1; }
.tile.has-img { color: #fff; }
.tile.has-img::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to top, rgba(0,0,0,.7), transparent 60%); }
.tile .cap { margin: 0; font-size: 1.05rem; line-height: 1.3; font-weight: 700; text-wrap: balance; }
.tile .foot { display: flex; justify-content: space-between; gap: 8px; font-family: var(--sans); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; opacity: .75; }
.tile .top { min-height: 18px; }

/* actividad */
.row { display: grid; grid-template-columns: 112px 1fr; gap: 6px 18px; padding-block: 18px; border-bottom: 1px solid var(--rule); }
.row:last-child { border-bottom: 0; }
.row time { font-family: var(--sans); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--tan); padding-top: 5px; }
.row p { margin: 0; }
.row .kind { font-family: var(--sans); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); font-weight: 600; display: block; margin-bottom: 2px; }
.row a.go { margin-left: 10px; white-space: nowrap; }

/* sobre mí */
.prose p { margin: 0 0 1.1em; font-size: 1.2rem; line-height: 1.7; }
.facts { margin: 28px 0 0; padding: 0; border-top: 1px solid var(--rule); }
.facts div { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--rule); }
.facts dt { font-family: var(--sans); font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--tan); padding-top: 4px; }
.facts dd { margin: 0; }

/* bloque final: proyecto, contacto, firma */
.closing { padding-block: 40px 20px; }
.quote { margin: 0 0 30px; padding: 4px 0 4px 20px; border-left: 3px solid var(--rule); color: var(--muted); font-style: italic; }
.quote strong { color: var(--ink); font-style: normal; }
.quote p { margin: 0 0 .8em; }
.quote p:last-child { margin: 0; }
.kind-words { font-family: var(--sans); color: var(--muted); margin: 0 0 34px; font-size: 1rem; }
.link, .kind-words a { color: var(--accent); font-weight: 600; border-bottom: 1.5px solid color-mix(in srgb, var(--accent) 55%, transparent); transition: border-color .2s; }
.link:hover, .kind-words a:hover { border-color: var(--accent); }
.sep { margin-inline: .6em; color: var(--tan); }
.sign { font-size: 1.15rem; margin: 0 0 28px; }
.foot-note { font-family: var(--sans); font-size: .68rem; letter-spacing: .2em; text-transform: uppercase; color: var(--tan); padding-block: 8px 48px; display: flex; flex-wrap: wrap; gap: 6px 18px; justify-content: space-between; }
.foot-note a:hover { color: var(--accent); }

/* lectura: entradas del blog y política de privacidad */
.article { padding-block: 34px 20px; }
.article h1, .doc h1 { font-size: clamp(2.2rem, 7.5vw, 3.4rem); line-height: 1.06; letter-spacing: -.02em; margin: 14px 0 12px; font-weight: 700; text-wrap: balance; }
.byline { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; font-family: var(--sans); font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--tan); padding-bottom: 26px; border-bottom: 1px solid var(--rule); margin-bottom: 34px; }
.md { font-size: clamp(1.12rem, 2.4vw, 1.25rem); line-height: 1.75; }
.md p { margin: 0 0 1.25em; }
.md h2 { font-size: 1.65rem; line-height: 1.2; margin: 2em 0 .6em; font-weight: 700; }
.md h3 { font-size: 1.28rem; margin: 1.8em 0 .5em; font-weight: 700; }
.md a, .doc a:not(.btn) { color: var(--accent); font-weight: 600; border-bottom: 1.5px solid color-mix(in srgb, var(--accent) 55%, transparent); }
.md a:hover, .doc a:not(.btn):hover { border-color: var(--accent); }
.md ul, .md ol { margin: 0 0 1.25em; padding-left: 1.4em; }
.md li { margin-bottom: .4em; }
.md blockquote { margin: 1.6em 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--rule); color: var(--muted); font-style: italic; }
.md code, .doc code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .8em; background: var(--card); border: 1px solid var(--rule); border-radius: 5px; padding: 1px 6px; word-break: break-all; }
.md hr { border: 0; border-top: 1px solid var(--rule); margin: 2em 0; }
.doc { padding-block: 34px 20px; }
.doc p { margin: 0 0 1.15em; font-size: 1.1rem; }
.notice { margin: 0; padding: 14px 18px; border: 1px dashed var(--rule); border-radius: 12px; color: var(--muted); font-style: italic; }
.btn { display: inline-block; font-family: var(--sans); font-weight: 600; font-size: .9rem; padding: 9px 18px; border-radius: 999px; border: 1px solid var(--rule); color: var(--ink); transition: border-color .2s, color .2s; }
.btn:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 560px) {
  .item.ig { grid-template-columns: 1fr 84px; gap: 14px; }
  .thumb { width: 84px; }
  .row { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .tile { padding: 12px; }
  .tile .cap { font-size: .95rem; }
  .facts div { grid-template-columns: 1fr; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .view.show, .view.show .item, .view.show .tile, .view.show .row { animation: none; }
  .caret { animation: none; }
  @view-transition { navigation: none; }
}

/* ===== artículo con formato de medio: antetítulo, titular, bajada, firma, foto a sangre ===== */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; background: var(--accent); transform-origin: 0 50%; transform: scaleX(0); z-index: 50; }
.story { padding-block: 26px 0; }
.story-head { padding-bottom: 6px; }
.kicker { font-family: var(--sans); font-size: .74rem; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--accent); margin: 18px 0 0; display: flex; align-items: center; gap: 10px; }
.story h1 { font-size: clamp(2.3rem, 7.6vw, 3.7rem); line-height: 1.04; letter-spacing: -.025em; margin: 14px 0 18px; font-weight: 700; text-wrap: balance; }
.dek { font-style: italic; font-size: clamp(1.2rem, 3.2vw, 1.45rem); line-height: 1.45; color: var(--muted); margin: 0 0 26px; text-wrap: pretty; }
.story .byline { margin-bottom: 30px; }
.byline .by { letter-spacing: .1em; }
.byline .by strong { color: var(--ink); font-weight: 600; }
.cover { margin: 0 auto 38px; max-width: 1040px; padding-inline: 16px; }
.cover img { display: block; width: 100%; height: auto; max-height: 76vh; object-fit: cover; border-radius: 6px; }
.cover figcaption { font-family: var(--sans); font-size: .82rem; line-height: 1.5; color: var(--muted); padding-top: 10px; }
.md img { display: block; max-width: 100%; height: auto; margin: 1.8em auto; border-radius: 6px; }
/* letra capital en el primer párrafo */
.story .md > p:first-child::first-letter { float: left; font-size: 4.3em; line-height: .82; font-weight: 700; padding: .06em .1em 0 0; color: var(--accent); }
/* citas destacadas */
.story .md blockquote { margin: 2em 0; padding: .2em 0 .2em 24px; border-left: 4px solid var(--accent); color: var(--ink); font-size: 1.32em; line-height: 1.4; font-style: italic; }
.story .md blockquote p { margin: 0; }
/* compartir */
.share { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin: 46px 0 0; padding-block: 22px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.share .eyebrow { margin-right: 6px; }
.share-btn { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--rule); background: none; color: var(--muted); cursor: pointer; transition: color .2s, border-color .2s, background .2s; }
.share-btn svg { width: 18px; height: 18px; }
.share-btn:hover { color: var(--accent); border-color: var(--accent); }
.share-btn.ok { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
/* autor */
.author { display: grid; grid-template-columns: 64px 1fr; gap: 18px; align-items: center; padding-block: 30px; }
.avatar { width: 64px; height: 64px; border-radius: 50%; background: var(--ink); color: var(--bg); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.9rem; }
.avatar span { color: var(--soft, #e0806e); }
.author-name { margin: 0; font-weight: 700; font-size: 1.15rem; }
.author-bio { margin: 2px 0 0; color: var(--muted); font-size: 1rem; line-height: 1.5; }
/* seguir leyendo */
.more { border-top: 3px double var(--rule); padding-block: 26px 30px; }
.more .eyebrow { margin-bottom: 8px; }
.more-item { display: block; padding-block: 16px; border-bottom: 1px solid var(--rule); }
.more-item .kicker { margin: 0 0 4px; font-size: .66rem; }
.more-title { font-size: 1.3rem; line-height: 1.25; font-weight: 700; transition: color .2s; }
.more-item:hover .more-title { color: var(--accent); }
/* portada del artículo destacado en la página de inicio */
.lead-cover { margin: 0 0 18px; aspect-ratio: 16 / 9; border-radius: 8px; overflow: hidden; background: var(--card); }
.lead-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
a.item:hover .lead-cover img { transform: scale(1.03); }
@media (max-width: 560px) {
  .cover { padding-inline: 0; }
  .cover img { border-radius: 0; }
  .cover figcaption { padding-inline: 24px; }
}
@media print { .progress, .share, .theme, .more { display: none; } }

/* ===== títulos que ganan contraste al avanzar (se activan con main.js) ===== */
.statement { font-size: clamp(1.7rem, 6.2vw, 2.7rem); line-height: 1.18; font-weight: 700; letter-spacing: -.02em; margin: 0 0 1.1em; text-wrap: balance; }
.rv-w { transition: opacity .18s linear; }
.md h2 .rv-w { transition-duration: .12s; }
.closing-statement { padding-block: clamp(56px, 12vw, 110px) clamp(40px, 8vw, 80px); }
.closing-statement .statement { margin: 0; font-size: clamp(2rem, 8.4vw, 3.6rem); line-height: 1.1; }

/* ===== pie: banda oscura con el nombre en cursiva, grande, como cierre ===== */
:root { --foot-bg: #26231e; --foot-ink: #f4eee2; --foot-dot: #e0806e; }
:root[data-theme="dark"] { --foot-bg: #0f0d0b; }
.site-footer { background: var(--foot-bg); color: var(--foot-ink); margin-top: clamp(30px, 6vw, 60px); padding: clamp(56px, 11vw, 120px) 24px calc(44px + env(safe-area-inset-bottom)); text-align: center; }
.sf-in { max-width: 980px; margin: 0 auto; }
.sf-mark { display: inline-block; font-family: var(--serif); font-style: italic; font-weight: 400; font-size: clamp(3.8rem, 19vw, 11rem); line-height: .95; letter-spacing: -.03em; color: var(--foot-ink); padding-right: .04em; }
.sf-dot { color: var(--foot-dot); }
.sf-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 30px; margin-top: clamp(28px, 6vw, 52px); font-family: var(--sans); font-size: .98rem; }
.sf-nav a { color: var(--foot-ink); opacity: .86; padding-block: 6px; border-bottom: 1px solid transparent; transition: opacity .2s, border-color .2s; }
.sf-nav a:hover, .sf-nav a:focus-visible { opacity: 1; border-color: var(--foot-dot); }
.sf-small { margin: clamp(32px, 7vw, 56px) 0 0; font-family: var(--sans); font-size: .66rem; letter-spacing: .2em; text-transform: uppercase; opacity: .55; }
.sf-small a:hover { opacity: 1; }
/* En el celular, los navegadores de WhatsApp e Instagram dibujan una barra flotante abajo: se deja espacio para no taparlo */
@media (hover: none) { .site-footer { padding-bottom: calc(112px + env(safe-area-inset-bottom)); } }

/* ===== móvil: las cuatro píldoras caben sin deslizar ===== */
@media (max-width: 560px) {
  .tabs { -webkit-mask-image: none; mask-image: none; justify-content: space-between; }
  .tab { padding: 8px 10px; font-size: .88rem; }
  .tabs-in { padding-block: 20px 16px; }
}