/* Blog Newtri — estilo familia Quetru / Eunosia: minimalismo clínico tipográfico. */

:root {
  --cream: #f7f5f0;
  --paper: #fffefb;
  --ink: #191917;
  --muted: #6e6a62;
  --hair: #e3ded3;
  --accent: #574a86;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, "Cascadia Mono", monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --pad: clamp(1.25rem, 5vw, 5rem);
  --maxw: 880px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--cream); color: var(--ink);
  font-family: var(--sans); font-size: 17px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a { color: inherit; }

.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--cream); padding: .6rem 1rem; z-index: 10; }
.skip:focus { left: 0; }

/* marca / porción */
.brand { display: inline-flex; align-items: baseline; gap: .55rem; text-decoration: none; color: var(--ink); }
.brand-name { font-weight: 600; letter-spacing: -.01em; font-size: 1.05rem; }
.brand-sub { font-family: var(--mono); font-size: .78rem; color: var(--muted); }
.mark {
  width: 14px; height: 14px; border-radius: 50%; border: 1.5px solid var(--ink);
  background: linear-gradient(90deg, var(--ink) 0 50%, transparent 50% 100%);
  flex: none; align-self: center;
}

/* cabecera / pie */
.site { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.4rem var(--pad); max-width: var(--maxw); margin: 0 auto; }
.site-nav { display: flex; gap: 1.4rem; }
.site-nav a { font-family: var(--mono); font-size: .78rem; text-transform: lowercase; letter-spacing: .02em; color: var(--muted); text-decoration: none; padding-bottom: 2px; border-bottom: 1px solid transparent; transition: color .15s, border-color .15s; }
.site-nav a:hover { color: var(--ink); border-color: var(--ink); }

main { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }

.eyebrow { font-family: var(--mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 0 0 1.1rem; }

/* hero (índice) */
.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 4rem); }
.hero h1 { margin: 0; font-weight: 600; letter-spacing: -.025em; font-size: clamp(1.9rem, 4.6vw, 3.1rem); line-height: 1.08; max-width: 20ch; }
.lede { margin: 1.4rem 0 0; font-size: clamp(1.02rem, 1.5vw, 1.2rem); line-height: 1.5; color: var(--muted); max-width: 48ch; }

.band { padding: clamp(2.5rem, 5vw, 4rem) 0; border-top: 1px solid var(--hair); }

/* estado vacío */
.empty { padding: 1.5rem 0; }
.empty p { margin: 0; font-size: 1.15rem; color: var(--ink); }
.empty .empty-sub { margin-top: .5rem; font-size: .98rem; color: var(--muted); }
.empty a { color: var(--accent); text-underline-offset: 2px; }
.empty a:hover { color: var(--ink); }

/* índice de entradas */
.index { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hair); }
.index li { border-bottom: 1px solid var(--hair); }
.index a { display: grid; grid-template-columns: 1fr auto; gap: .35rem 1.5rem; padding: 1.15rem .25rem; text-decoration: none; color: var(--ink); transition: background .15s, padding .15s; }
.index a:hover { background: var(--paper); padding-left: .9rem; }
.index .idx-name { font-weight: 600; font-size: 1.12rem; letter-spacing: -.01em; }
.index .idx-desc { grid-column: 1; color: var(--muted); font-size: .96rem; }
.tag { font-family: var(--mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); border: 1px solid var(--hair); border-radius: 999px; padding: .18rem .55rem; white-space: nowrap; align-self: start; }

/* artículo */
.post { padding: clamp(2.5rem, 7vw, 5rem) 0 3rem; }
.post-title { margin: 0; font-weight: 600; letter-spacing: -.025em; font-size: clamp(1.8rem, 4.2vw, 3rem); line-height: 1.08; }
.post .lede { margin-top: 1.1rem; }
.post-body { margin-top: 2.4rem; font-size: 1.08rem; line-height: 1.72; }
.post-body > *:first-child { margin-top: 0; }
.post-body p { margin: 0 0 1.35rem; max-width: 65ch; }
.post-body h3, .post-body h4 { font-weight: 600; letter-spacing: -.01em; line-height: 1.25; margin: 2.4rem 0 .8rem; }
.post-body h4 { font-size: 1.15rem; }
.post-body h3 { font-size: 1.35rem; }
.post-body ul, .post-body ol { margin: 0 0 1.35rem; padding-left: 1.2rem; max-width: 65ch; }
.post-body li { margin: .3rem 0; }
.post-body a { color: var(--accent); text-underline-offset: 2px; text-decoration-thickness: 1px; }
.post-body a:hover { color: var(--ink); }
.post-body blockquote {
  margin: 1.8rem 0; padding: .2rem 0 .2rem 1.4rem; border-left: 2px solid var(--ink);
  font-size: 1.15rem; line-height: 1.5; color: var(--ink); max-width: 60ch;
}
.post-body blockquote p { margin: 0 0 .6rem; }
.post-body blockquote p:last-child { margin: 0; }
.post-body img, .post-body video { display: block; max-width: 100%; height: auto; border-radius: 4px; margin: 2rem 0; border: 1px solid var(--hair); }
.post-body code { font-family: var(--mono); font-size: .88em; background: var(--paper); border: 1px solid var(--hair); border-radius: 4px; padding: .1em .35em; }
.post-body pre { overflow-x: auto; background: var(--paper); border: 1px solid var(--hair); border-radius: 6px; padding: 1rem; }
.post-body pre code { border: 0; background: none; padding: 0; }

.back { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--hair); }
.arrow-link { display: inline-block; font-family: var(--mono); font-size: .82rem; text-decoration: none; color: var(--ink); border-bottom: 1px solid var(--ink); padding-bottom: 2px; }
.arrow-link span { display: inline-block; transition: margin .18s; }
.arrow-link:hover span { margin-right: .4rem; }

/* pie */
.site-footer { max-width: var(--maxw); margin: 2rem auto 0; padding: 3rem var(--pad) 4rem; border-top: 1px solid var(--hair); }
.foot-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.fineprint { margin: 1.75rem 0 0; font-family: var(--mono); font-size: .74rem; color: var(--muted); line-height: 1.7; }

*:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }