/* ==========================================================================
   FotoExpress — hoja de estilos única
   Papel cálido + tinta casi negra + un solo acento mandarina, reservado
   para lo accionable (soltar fotos, descargar).
   ========================================================================== */

:root {
  --paper:       #F7F5F2;
  --card:        #FFFFFF;
  --ink:         #16161D;
  --ink-60:      #5B5B66;
  --ink-30:      #9A9AA4;
  --line:        #E4E0DA;
  --accent:      #FF5A1F;
  --accent-dark: #E8480F;
  --accent-soft: #FFF0E9;
  --ok:          #0E9F6E;
  --ok-soft:     #E7F6F0;
  --warn:        #B45309;
  --warn-soft:   #FEF3E2;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --display: "Manrope", var(--sans);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 14px;
  --shadow: 0 1px 2px rgba(22,22,29,.05), 0 12px 32px -12px rgba(22,22,29,.14);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  color: var(--ink); background: var(--paper);
  -webkit-font-smoothing: antialiased; overflow-x: clip;
}
img, svg, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3 { font-family: var(--display); text-wrap: balance; line-height: 1.12; letter-spacing: -0.02em; }
select, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 999; padding: .6rem 1rem; background: var(--ink); color: #fff; border-radius: 8px; }
.skip-link:focus { top: 1rem; }

.wrap { width: min(100% - 2rem, 1080px); margin-inline: auto; }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 58px; }
.logo { display: flex; align-items: center; gap: .55rem; font-family: var(--display); font-size: 1.08rem; }
.logo-text { font-weight: 700; letter-spacing: -.02em; }
.logo-text strong { color: var(--accent); font-weight: 800; }
.logo-mark { width: 22px; height: 22px; border-radius: 6px; background: var(--accent); position: relative; flex: none; }
.logo-mark::after { content: ""; position: absolute; inset: 5px; background: #fff; border-radius: 2px; }
.site-header nav { display: flex; gap: 1.1rem; font-size: .88rem; color: var(--ink-60); }
.site-header nav a:hover { color: var(--ink); }
/* (regla de ocultar en mobile reemplazada mas abajo por la barra deslizable) */

/* ---------- Zona principal ---------- */
.hero { padding: 1.75rem 0 1.25rem; text-align: center; }
.eyebrow {
  display: inline-block; font-size: .76rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--accent);
  background: var(--accent-soft); padding: .3rem .7rem; border-radius: 100px;
}
h1 { font-size: clamp(1.7rem, 5.6vw, 2.7rem); font-weight: 800; margin: .75rem 0 .55rem; }
.sub { max-width: 48ch; margin: 0 auto 1.4rem; color: var(--ink-60); }
.sub strong { color: var(--ink); font-weight: 600; }

.tool-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 20px;
  box-shadow: var(--shadow); padding: clamp(1rem, 3vw, 1.5rem); text-align: left;
}
.pane { display: none; }
.tool-card[data-state="idle"]    .pane-idle    { display: block; }
.tool-card[data-state="editing"] .pane-editing { display: block; }
.tool-card[data-state="error"]   .pane-error   { display: block; }

.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .35rem; text-align: center; min-height: 190px; padding: 1.4rem;
  border: 2px dashed var(--line); border-radius: var(--radius); background: var(--paper);
  cursor: pointer;
  transition: border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}
.dropzone:hover, .dropzone.is-over { border-color: var(--accent); background: var(--accent-soft); }
.dropzone.is-over { transform: scale(1.01); }
.dz-icon { width: 32px; height: 32px; color: var(--accent); margin-bottom: .25rem; }
.dz-title { font-family: var(--display); font-weight: 700; font-size: 1.12rem; }
.dz-sub { font-size: .84rem; color: var(--ink-60); }

.privacy-badge {
  margin-top: .85rem; text-align: center; font-size: .84rem; color: var(--ink-60);
  background: var(--ok-soft); border-radius: 10px; padding: .55rem .8rem;
}
.privacy-badge strong { color: var(--ok); }
.limits { margin-top: .8rem; font-size: .79rem; color: var(--ink-30); text-align: center; }

/* ---------- Controles ---------- */
.controls { display: grid; gap: 1rem; margin-bottom: 1rem; }
@media (min-width: 720px) { .controls { grid-template-columns: 1fr 1fr; } }
.control label, .control-label { display: block; font-size: .81rem; font-weight: 600; margin-bottom: .35rem; }
.control select { width: 100%; padding: .6rem .7rem; border: 1px solid var(--line); border-radius: 10px; background: var(--card); }
.control-note { font-size: .77rem; color: var(--ink-30); margin-top: .35rem; }

.segmented { display: flex; gap: .3rem; background: var(--paper); padding: .25rem; border-radius: 11px; border: 1px solid var(--line); }
.segmented button {
  flex: 1; padding: .5rem .4rem; border-radius: 8px; font-size: .84rem; font-weight: 500; color: var(--ink-60);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.segmented button.is-active { background: var(--card); color: var(--ink); font-weight: 600; box-shadow: 0 1px 3px rgba(0,0,0,.08); }

.chip-group { display: flex; flex-wrap: wrap; gap: .45rem; }
.chip {
  padding: .5rem .85rem; border-radius: 100px; border: 1px solid var(--line);
  font-size: .83rem; font-weight: 500; color: var(--ink-60); background: var(--card);
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}
.chip.is-active { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-dark); font-weight: 600; }

.toggle-line { display: flex; align-items: center; gap: .5rem; font-size: .84rem; margin-top: .7rem; }
.toggle-line input { width: 17px; height: 17px; accent-color: var(--accent); flex: none; }
.control-row { display: flex; align-items: center; gap: .55rem; margin-top: .5rem; }
.control-row input[type="number"] { width: 96px; padding: .5rem .6rem; border: 1px solid var(--line); border-radius: 9px; }
.control-row .x { font-size: .8rem; color: var(--ink-30); }

.counter { font-size: .84rem; color: var(--ink-60); margin-bottom: .7rem; }
.counter strong { color: var(--ink); }
.counter .c-ok { color: var(--ok); font-weight: 600; }
.counter .c-warn { color: var(--warn); font-weight: 600; }

/* ---------- Tarjetas de imagen ---------- */
.file-list { display: grid; gap: .7rem; }
@media (min-width: 640px) { .file-list { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .file-list { grid-template-columns: repeat(3, 1fr); } }

.file-item { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); overflow: hidden; display: flex; flex-direction: column; }
.fi-preview { position: relative; background: #EBE8E3; aspect-ratio: 1; display: grid; place-items: center; padding: .5rem; }
.fi-preview canvas { max-width: 100%; max-height: 100%; width: auto; height: auto; border-radius: 4px; box-shadow: 0 0 0 1px rgba(0,0,0,.05); }
.fi-spinner { width: 26px; height: 26px; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.fi-badge { position: absolute; top: .45rem; left: .45rem; background: var(--ink); color: #fff; font-size: .69rem; font-weight: 600; width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; }

.fi-body { padding: .6rem .7rem .7rem; display: flex; flex-direction: column; gap: .42rem; flex: 1; }
.fi-name { font-size: .79rem; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fi-meta { font-size: .75rem; color: var(--ink-60); }
.fi-meta .saved { color: var(--ok); font-weight: 600; }
.fi-flag { font-size: .72rem; border-radius: 7px; padding: .3rem .45rem; line-height: 1.35; }
.fi-flag.is-warn { background: var(--warn-soft); color: var(--warn); }
.fi-flag.is-ok { background: var(--ok-soft); color: var(--ok); }
.fi-actions { display: flex; gap: .32rem; margin-top: auto; }
.fi-actions button {
  flex: 1; font-size: .74rem; padding: .38rem .3rem; border-radius: 8px;
  border: 1px solid var(--line); color: var(--ink-60);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.fi-actions button:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Botones ---------- */
.actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.05rem; }
.btn { padding: .75rem 1.15rem; border-radius: 11px; font-weight: 600; font-size: .91rem; transition: transform .2s var(--ease), background .2s var(--ease); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; flex: 1 1 240px; text-align: center; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-primary.is-busy { background: var(--ink-30); cursor: progress; }
.btn-ghost { border: 1px solid var(--line); color: var(--ink-60); }
.btn-ghost:hover { border-color: var(--ink-30); color: var(--ink); }
.error-msg { background: var(--warn-soft); color: var(--warn); padding: .8rem 1rem; border-radius: 10px; margin-bottom: .8rem; }

/* ---------- Secciones ---------- */
.section { padding: 2.4rem 0; }
.section-alt { background: var(--card); border-block: 1px solid var(--line); }
.section h2 { font-size: clamp(1.35rem, 4vw, 1.85rem); font-weight: 800; margin-bottom: 1.1rem; }
.prose { max-width: 68ch; }
.prose h3 { font-size: 1.06rem; font-weight: 700; margin: 1.5rem 0 .4rem; }
.prose p { color: var(--ink-60); margin-bottom: .8rem; }
.prose p strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 2px; }

.steps { list-style: none; padding: 0; display: grid; gap: 1.1rem; counter-reset: paso; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; }
.section-alt .steps li { background: var(--paper); }
.step-n { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: .9rem; margin-bottom: .55rem; }
.steps h3 { font-size: 1.03rem; font-weight: 700; margin-bottom: .25rem; }
.steps p { font-size: .88rem; color: var(--ink-60); }

details { border-bottom: 1px solid var(--line); padding: .85rem 0; }
details summary { font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--accent); font-size: 1.2rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { margin-top: .55rem; color: var(--ink-60); font-size: .92rem; }

.tool-links { display: grid; gap: .75rem; }
@media (min-width: 640px) { .tool-links { grid-template-columns: repeat(2, 1fr); } }
.tool-link { display: block; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); transition: border-color .2s var(--ease), transform .2s var(--ease); }
.section-alt .tool-link { background: var(--paper); }
.tool-link:hover { border-color: var(--accent); transform: translateY(-2px); }
.tool-link strong { display: block; font-size: 1rem; margin-bottom: .22rem; }
.tool-link span { font-size: .84rem; color: var(--ink-60); }

/* ---------- Pie ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 1.8rem 0 2.4rem; font-size: .84rem; color: var(--ink-60); }
.footer-inner { display: grid; gap: .65rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1rem; }
.site-footer nav a:hover { color: var(--accent); }
.disclaimer { font-size: .75rem; color: var(--ink-30); max-width: 72ch; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* ==========================================================================
   NAVEGACIÓN MÓVIL — corregido
   Antes los enlaces se ocultaban por completo en pantallas chicas y no había
   forma de llegar al blog ni a la calculadora desde el celular.
   Ahora la barra se vuelve deslizable en horizontal y no se pierde nada.
   ========================================================================== */
.site-header nav {
  display: flex; gap: .5rem; font-size: .88rem; color: var(--ink-60);
  overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none;
  margin-left: auto; padding-left: .5rem;
}
.site-header nav::-webkit-scrollbar { display: none; }
.site-header nav a {
  white-space: nowrap; padding: .34rem .62rem; border-radius: 100px;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.site-header nav a:hover { color: var(--ink); background: var(--paper); }
.site-header nav a.is-current { background: var(--accent-soft); color: var(--accent-dark); font-weight: 600; }

@media (max-width: 600px) {
  .site-header nav a.hide-sm { display: block; }   /* anula la regla vieja */
  .header-inner { height: 54px; gap: .4rem; }
  .site-header nav { font-size: .82rem; gap: .25rem; }
  .site-header nav a { padding: .3rem .5rem; }
  .logo-text { font-size: .98rem; }
}
@media (max-width: 380px) {
  .site-header nav a { padding: .28rem .42rem; font-size: .78rem; }
}

/* ==========================================================================
   BLOG — portada
   ========================================================================== */
.blog-hero { padding: 2rem 0 1.2rem; }
.blog-hero .wrap { max-width: 1080px; }
.blog-kicker {
  display: inline-flex; align-items: center; gap: .45rem;
  font-size: .8rem; font-weight: 600; color: var(--accent-dark);
  background: var(--accent-soft); padding: .32rem .75rem; border-radius: 100px;
}
.blog-hero h1 {
  font-size: clamp(1.9rem, 6vw, 3.05rem); font-weight: 800;
  margin: .8rem 0 .6rem; max-width: 16ch;
}
.blog-hero .lede { font-size: clamp(1rem, 2.4vw, 1.12rem); color: var(--ink-60); max-width: 56ch; }

/* Artículo destacado — el único elemento de alto contraste de la página */
.featured {
  display: block; margin-top: 1.8rem; border-radius: 22px; overflow: hidden;
  background: var(--ink); color: #fff; position: relative;
  transition: transform .25s var(--ease);
}
.featured:hover { transform: translateY(-3px); }
.featured-inner { padding: clamp(1.4rem, 4vw, 2.6rem); position: relative; z-index: 1; }
.featured::after {
  content: ""; position: absolute; right: -60px; top: -60px;
  width: 260px; height: 260px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,90,31,.42), transparent 68%);
}
.featured .f-tag {
  display: inline-block; font-size: .76rem; font-weight: 600; color: #fff;
  background: var(--accent); padding: .28rem .7rem; border-radius: 100px;
}
.featured h2 {
  font-size: clamp(1.35rem, 4.4vw, 2.1rem); font-weight: 800; color: #fff;
  margin: .85rem 0 .6rem; max-width: 22ch; line-height: 1.14;
}
.featured p { color: rgba(255,255,255,.76); max-width: 54ch; font-size: .96rem; }
.featured .f-go {
  display: inline-block; margin-top: 1.1rem; font-weight: 600; font-size: .9rem;
  color: #fff; border-bottom: 2px solid var(--accent); padding-bottom: 2px;
}
.featured .f-meta { margin-top: .9rem; font-size: .8rem; color: rgba(255,255,255,.5); }

/* Filtros por categoría */
.cat-bar {
  display: flex; gap: .45rem; flex-wrap: wrap; margin: 2.2rem 0 1.3rem;
  padding-bottom: .2rem;
}
.cat-btn {
  padding: .48rem .9rem; border-radius: 100px; border: 1px solid var(--line);
  font-size: .85rem; font-weight: 500; color: var(--ink-60); background: var(--card);
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}
.cat-btn:hover { border-color: var(--ink-30); color: var(--ink); }
.cat-btn.is-active { background: var(--ink); border-color: var(--ink); color: #fff; font-weight: 600; }

/* Grilla de artículos */
.post-grid { display: grid; gap: 1rem; }
@media (min-width: 700px) { .post-grid { grid-template-columns: repeat(2, 1fr); } }

.post-card {
  display: flex; flex-direction: column; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.15rem 1.2rem 1.2rem;
  transition: border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.post-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }
.post-card .pc-tag {
  align-self: flex-start; font-size: .73rem; font-weight: 600;
  color: var(--accent-dark); background: var(--accent-soft);
  padding: .24rem .6rem; border-radius: 100px; margin-bottom: .7rem;
}
.post-card .pc-tag[data-cat="importacion"] { color: #0B6E4F; background: var(--ok-soft); }
.post-card .pc-tag[data-cat="noticias"] { color: #1D4ED8; background: #E6EDFF; }
.post-card h3 { font-size: 1.12rem; font-weight: 700; line-height: 1.25; margin-bottom: .4rem; }
.post-card p { font-size: .88rem; color: var(--ink-60); margin-bottom: .9rem; }
.post-card .pc-meta { margin-top: auto; font-size: .78rem; color: var(--ink-30); }
.post-card.is-hidden { display: none; }

.empty-cat {
  border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 1.4rem; text-align: center; color: var(--ink-30); font-size: .88rem;
}

/* ==========================================================================
   BLOG — página de artículo
   ========================================================================== */
.crumbs { font-size: .8rem; color: var(--ink-30); padding: 1rem 0 0; }
.crumbs a { color: var(--ink-60); }
.crumbs a:hover { color: var(--accent-dark); text-decoration: underline; }
.crumbs span { margin: 0 .35rem; }

.art-head { padding: .9rem 0 1.5rem; border-bottom: 1px solid var(--line); }
.art-head .wrap { max-width: 74ch; }
.art-tag {
  display: inline-block; font-size: .76rem; font-weight: 600;
  color: var(--accent-dark); background: var(--accent-soft);
  padding: .28rem .7rem; border-radius: 100px;
}
.art-head h1 {
  font-size: clamp(1.7rem, 5.2vw, 2.6rem); font-weight: 800;
  margin: .85rem 0 .7rem; line-height: 1.12;
}
.art-deck { font-size: clamp(1rem, 2.4vw, 1.15rem); color: var(--ink-60); line-height: 1.55; }
.art-meta {
  display: flex; flex-wrap: wrap; gap: .4rem 1.1rem; align-items: center;
  margin-top: 1.1rem; font-size: .81rem; color: var(--ink-30);
}
.art-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-30); }

.article { padding: 1.6rem 0 2.6rem; }
.article .wrap { max-width: 74ch; }
.article p, .article li { font-size: 1.04rem; line-height: 1.72; color: #3A3A45; }
.article p { margin-bottom: 1.05rem; }
.article p strong, .article li strong { color: var(--ink); font-weight: 600; }
.article h2 {
  font-size: clamp(1.25rem, 3.6vw, 1.6rem); font-weight: 800;
  margin: 2.3rem 0 .85rem; padding-top: 1.1rem; border-top: 2px solid var(--line);
}
.article h3 { font-size: 1.08rem; font-weight: 700; margin: 1.7rem 0 .5rem; }
.article ul, .article ol { margin: 0 0 1.15rem 1.1rem; display: grid; gap: .5rem; }
.article ul li::marker { color: var(--accent); }
.article a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 2px; }

/* Primer párrafo destacado */
.article .intro { font-size: 1.14rem; line-height: 1.66; color: var(--ink); font-weight: 500; }

/* Caja de resumen */
.takeaway {
  background: var(--card); border: 1px solid var(--line);
  border-left: 4px solid var(--accent); border-radius: 12px;
  padding: 1.15rem 1.25rem; margin: 1.5rem 0 1.8rem;
}
.takeaway h2 {
  font-size: .88rem !important; font-weight: 700; margin: 0 0 .7rem !important;
  padding-top: 0 !important; border-top: 0 !important;
  font-family: var(--sans); letter-spacing: .01em;
}
.takeaway ul { margin: 0 0 0 1rem; gap: .45rem; }
.takeaway li { font-size: .94rem; line-height: 1.55; }

/* Índice de contenidos */
.toc { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.15rem; margin-bottom: 1.8rem; }
.toc p { font-size: .82rem; font-weight: 700; color: var(--ink); margin-bottom: .55rem; }
.toc ol { margin: 0 0 0 1.1rem; gap: .35rem; }
.toc li { font-size: .9rem; }
.toc a { color: var(--ink-60); text-decoration: none; }
.toc a:hover { color: var(--accent-dark); text-decoration: underline; }

/* Dato destacado */
.callout {
  background: var(--ink); color: #fff; border-radius: 14px;
  padding: 1.3rem 1.4rem; margin: 1.7rem 0;
}
.callout .c-num { font-family: var(--display); font-size: clamp(1.8rem, 6vw, 2.5rem); font-weight: 800; color: var(--accent); line-height: 1; }
.callout p { color: rgba(255,255,255,.8); font-size: .95rem; margin: .5rem 0 0; }

/* Aviso */
.notice {
  background: var(--warn-soft); border: 1px solid #F5D9A8; border-radius: 12px;
  padding: .95rem 1.1rem; margin: 1.5rem 0;
}
.notice p { font-size: .92rem; color: var(--warn); margin: 0; line-height: 1.6; }
.notice p strong { color: #8A3D08; }

/* Tabla */
.art-table-wrap { overflow-x: auto; margin: 1.3rem 0 1.6rem; }
.art-table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 420px; }
.art-table th, .art-table td { padding: .62rem .7rem; text-align: left; border-bottom: 1px solid var(--line); }
.art-table th { font-weight: 700; font-size: .82rem; color: var(--ink); background: var(--paper); }
.art-table td { color: var(--ink-60); }
.art-table tr:last-child td { border-bottom: 0; }
.art-table .num { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* CTA a la herramienta */
.tool-cta {
  display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
  background: var(--accent-soft); border: 1px solid #FFD9C6;
  border-radius: var(--radius); padding: 1.2rem 1.3rem; margin: 1.9rem 0;
}
.tool-cta .tc-text { flex: 1 1 260px; }
.tool-cta h3 { font-size: 1.04rem; font-weight: 700; margin-bottom: .25rem; }
.tool-cta p { font-size: .89rem; color: var(--ink-60); margin: 0; line-height: 1.55; }
.tool-cta .btn-primary { flex: 0 0 auto; }

/* Preguntas frecuentes del artículo */
.art-faq { margin-top: 2.2rem; }
.art-faq h2 { margin-bottom: .6rem; }
.art-faq details { border-bottom: 1px solid var(--line); padding: .9rem 0; }
.art-faq summary { font-weight: 600; font-size: .97rem; }
.art-faq details p { font-size: .95rem; margin-top: .6rem; margin-bottom: 0; }

/* Artículos relacionados */
.related { background: var(--card); border-block: 1px solid var(--line); padding: 2.2rem 0; }
.related h2 { font-size: 1.2rem; font-weight: 800; margin-bottom: 1rem; }
.related .post-grid .post-card { background: var(--paper); }

/* Hueco de publicidad */
.ad-slot {
  margin: 1.8rem auto; max-width: 728px; min-height: 90px;
  border: 1px dashed var(--line); border-radius: 10px;
  display: grid; place-items: center; color: var(--ink-30); font-size: .75rem;
}


/* ==========================================================================
   TEMA MERCADO LIBRE — opción 6: amarillo dominante + tinta
   Dos colores en total. Sin azul ni naranja como acento: la jerarquía se
   logra por contraste de valor (claro/oscuro), no por matiz. El botón
   funciona porque es lo único oscuro en un entorno amarillo, no porque
   tenga un color "especial".
   ========================================================================== */

:root{
  --ml-amarillo:      #FFDE0A;
  --ml-amarillo-alto: #FFE94F;
  --ml-amarillo-soft: #FFF8D6;
  --ml-tinta:         #15153A;   /* único acento: tinta casi negra */
  --ml-tinta-suave:   #33335C;

  --paper:       #FFFCF0;
  --card:        #FFFFFF;
  --ink:         #15153A;
  --ink-60:      #55597E;
  --ink-30:      #9497B6;
  --line:        #E8E2CB;
  --accent:      #15153A;
  --accent-dark: #000018;
  --accent-soft: #EDEDF4;
  --shadow: 0 1px 2px rgba(21,21,58,.06), 0 14px 34px -14px rgba(21,21,58,.22);
}

h1, h2, h3 { color: var(--ml-tinta); }

/* ---------- Cabecera y hero: el amarillo es el ambiente ---------- */
.site-header{
  background: var(--ml-amarillo);
  border-bottom: 2px solid rgba(21,21,58,.12);
  backdrop-filter: none;
}
.site-header nav{ color: rgba(21,21,58,.72); }
.site-header nav a:hover{ color: var(--ml-tinta); background: rgba(255,255,255,.55); }
.site-header nav a.is-current{ background: var(--ml-tinta); color: var(--ml-amarillo); font-weight: 700; }
.logo-text, .logo-text strong{ color: var(--ml-tinta); }
.logo-mark{ background: var(--ml-tinta); }
.logo-mark::after{ background: var(--ml-amarillo); }

.hero, .blog-hero{
  background: linear-gradient(170deg, var(--ml-amarillo) 0%, var(--ml-amarillo-alto) 100%);
  border-bottom: 2px solid rgba(21,21,58,.12);
  padding: 2.4rem 0 2.6rem;
}
.hero h1, .blog-hero h1{ color: var(--ml-tinta); }
.hero .sub, .blog-hero .lede{ color: rgba(21,21,58,.78); }
.hero .sub strong{ color: var(--ml-tinta); }
.hero .eyebrow, .blog-kicker{ background: var(--ml-tinta); color: var(--ml-amarillo); letter-spacing: .05em; }
.hero .limits{ color: rgba(21,21,58,.62); }

.tool-card{
  box-shadow: 0 2px 0 rgba(21,21,58,.10), 0 22px 44px -18px rgba(21,21,58,.38);
  border-color: rgba(21,21,58,.10);
}

/* ---------- Botones: tinta sobre amarillo, único elemento oscuro ---------- */
.btn-primary{
  background: var(--ml-tinta); color: var(--ml-amarillo);
  font-weight: 700; letter-spacing: .01em;
  box-shadow: 0 2px 0 rgba(0,0,0,.35);
}
.btn-primary:hover{ background: #000018; }
.btn-ghost{ border-color: rgba(21,21,58,.22); color: var(--ml-tinta); }
.btn-ghost:hover{ border-color: var(--ml-tinta); background: var(--ml-amarillo-soft); }

/* ---------- Secciones ---------- */
.section-alt{ background: var(--ml-amarillo-soft); border-block-color: rgba(21,21,58,.10); }
.section-alt .tool-link, .section-alt .steps li{ background: var(--card); }
.section h2{ position: relative; padding-left: .85rem; }
.section h2::before{
  content: ""; position: absolute; left: 0; top: .12em; bottom: .12em;
  width: 5px; border-radius: 0; background: var(--ml-tinta);
}

.step-n{ background: var(--ml-tinta); color: var(--ml-amarillo); }
.steps li{ border-color: rgba(21,21,58,.14); }
.dropzone:hover, .dropzone.is-over{ border-color: var(--ml-tinta); background: var(--ml-amarillo-soft); }
.dz-icon{ color: var(--ml-tinta); }
.privacy-badge{ background: #E9F7F0; }

.tool-link{ border-color: rgba(21,21,58,.14); }
.tool-link:hover{ border-color: var(--ml-tinta); box-shadow: var(--shadow); }
.tool-link strong{ color: var(--ml-tinta); }

.chip.is-active, .cat-btn.is-active{ background: var(--ml-tinta); border-color: var(--ml-tinta); color: var(--ml-amarillo); }
.segmented button.is-active{ color: var(--ml-tinta); }
details summary::after{ color: var(--ml-tinta); }
.prose a, .article a{ color: var(--ml-tinta); text-decoration-color: rgba(21,21,58,.35); }
.article ul li::marker{ color: var(--ml-tinta); }
.art-table th{ background: var(--ml-amarillo-soft); color: var(--ml-tinta); }
.takeaway{ border-left-color: var(--ml-tinta); border-radius: 0 12px 12px 0; }
.callout{ background: var(--ml-tinta); }
.callout .c-num{ color: var(--ml-amarillo); }
.toc{ background: var(--ml-amarillo-soft); }
.tool-cta{ background: var(--ml-amarillo-soft); border-color: rgba(21,21,58,.16); }
.featured{ background: var(--ml-tinta); }
.featured .f-tag{ background: var(--ml-amarillo); color: var(--ml-tinta); font-weight: 700; }
.featured .f-go{ border-bottom-color: var(--ml-amarillo); }
.post-card .pc-tag{ background: var(--ml-amarillo-soft); color: var(--ml-tinta); }
.art-tag{ background: var(--ml-amarillo); color: var(--ml-tinta); font-weight: 700; }

/* ---------- Pie: tinta, cierra la página en vez de desvanecerse ---------- */
.site-footer{
  background: var(--ml-tinta); color: rgba(255,255,255,.76);
  border-top: 4px solid var(--ml-amarillo);
}
.site-footer p strong{ color: #fff; }
.site-footer nav a{ color: rgba(255,255,255,.9); }
.site-footer nav a:hover{ color: var(--ml-amarillo); }
.site-footer .disclaimer{ color: rgba(255,255,255,.5); }
.site-footer span[style]{ color: rgba(255,255,255,.55) !important; }

/* ---------- Complementos del generador de títulos ---------- */
.gt-chip{ background: var(--ml-amarillo-soft); border-color: rgba(21,21,58,.16); color: var(--ml-tinta); }
.gt-barra i{ background: var(--ml-tinta); }
.gt-variante.gt-destacada{ border-color: var(--ml-tinta); box-shadow: 0 0 0 4px rgba(255,222,10,.55); }
.gt-rotulo{ color: var(--ml-tinta); }
.gt-titulo{ background: var(--ml-amarillo-soft); color: var(--ml-tinta); }

.ad-slot{ border-color: rgba(21,21,58,.18); }

/* Botones dentro de notas y textos largos: el estilo de links del artículo
   les pisaba el color y el texto quedaba invisible (tinta sobre tinta). */
.article a.btn, .prose a.btn{ text-decoration: none; }
.article a.btn-primary, .prose a.btn-primary{ color: var(--ml-amarillo); }
.article a.btn-ghost, .prose a.btn-ghost{ color: var(--ml-tinta); }


/* ---------- v20260922: autor, miniaturas del blog, fecha de actualización ---------- */
.au-avatar{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--ml-tinta);color:var(--ml-amarillo);font-family:var(--display);font-weight:800;font-size:1.5rem;flex:none}
.au-avatar-xl{width:88px;height:88px;font-size:2.4rem;margin:0 auto .9rem}
.author-box{display:flex;gap:1rem;align-items:flex-start;background:var(--card);border:1px solid rgba(21,21,58,.14);border-radius:var(--radius);padding:1.1rem 1.2rem;margin:2.2rem 0 0}
.author-box .ab-k{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-60);margin:0}
.author-box .ab-n{font-family:var(--display);font-size:1.1rem;font-weight:800;margin:.1rem 0 .3rem;color:var(--ml-tinta)}
.author-box p{font-size:.9rem;color:var(--ink-60);margin:0 0 .4rem;line-height:1.55}
.author-box a{color:var(--ml-tinta);font-weight:600;text-decoration:underline;text-underline-offset:2px}
.au-lista{padding-left:1.2rem}
.au-lista li{margin-bottom:.7rem}
.au-lista a{font-weight:600}
.au-f{display:block;font-size:.8rem;color:var(--ink-30)}
.post-card .pc-img{display:block;width:calc(100% + 2.5rem);max-width:none;height:auto;aspect-ratio:1200/630;object-fit:cover;margin:-1.25rem -1.25rem 1rem;border-radius:var(--radius) var(--radius) 0 0;border-bottom:1px solid rgba(21,21,58,.1)}
.pc-date{white-space:nowrap}
.tool-updated{margin:.6rem 0 0;font-size:.8rem;color:var(--ink-60)}
.tool-updated strong{color:var(--ink)}
img.au-avatar{object-fit:cover;display:block;padding:0;border:2px solid var(--ml-amarillo);box-shadow:0 0 0 1px rgba(21,21,58,.15)}

/* ---------- v20260926: portada del blog estilo medio ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.bx-hero{padding:2rem 0 1.4rem}
.bx-hero .lede{margin-bottom:1.1rem}
.bx-search{position:relative;max-width:620px}
.bx-search svg{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--ml-tinta);opacity:.7}
.bx-search input{width:100%;height:52px;padding:0 1rem 0 2.8rem;border:2px solid var(--ml-tinta);border-radius:999px;background:#fff;font-size:1rem;box-shadow:0 3px 0 rgba(21,21,58,.18)}
.bx-search input:focus{outline:none;box-shadow:0 0 0 4px rgba(21,21,58,.18)}
.bx-res{max-width:620px;margin-top:.5rem;background:#fff;border:1px solid rgba(21,21,58,.16);border-radius:var(--radius);box-shadow:var(--shadow);padding:.5rem}
.bx-res-k{font-size:.8rem;color:var(--ink-60);padding:.35rem .6rem;margin:0}
.bx-res ul{list-style:none;padding:0}
.bx-res a{display:flex;flex-direction:column;padding:.55rem .6rem;border-radius:10px}
.bx-res a:hover,.bx-res a:focus-visible{background:var(--ml-amarillo-soft)}
.bx-res strong{color:var(--ml-tinta);font-size:.95rem;line-height:1.3}
.bx-res span{font-size:.76rem;color:var(--ink-60)}
.bx-chips{display:flex;gap:.5rem;margin-top:1.1rem;overflow-x:auto;padding:.2rem .1rem .5rem;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;scrollbar-width:thin;mask-image:linear-gradient(90deg,#000 88%,transparent)}
.bx-chip{flex:none;scroll-snap-align:start;display:inline-flex;align-items:center;gap:.45rem;padding:.5rem .85rem;background:rgba(255,255,255,.72);border:1px solid rgba(21,21,58,.18);border-radius:999px;font-size:.86rem;font-weight:600;color:var(--ml-tinta);white-space:nowrap}
.bx-chip:hover{background:#fff;border-color:var(--ml-tinta)}
.bx-chip span{font-size:.72rem;font-weight:700;background:var(--ml-tinta);color:var(--ml-amarillo);border-radius:999px;padding:.05rem .45rem}
@media (min-width:900px){.bx-chips{flex-wrap:wrap;overflow:visible;mask-image:none}}
.bx-dot{display:inline-block;width:.6rem;height:.6rem;border-radius:50%;background:var(--ml-tinta);flex:none}
.bx-dot[data-c="precios"],.bx-tag[data-c="precios"]{--c:#E8480F}
.bx-dot[data-c="crecimiento"],.bx-tag[data-c="crecimiento"]{--c:#0E9F6E}
.bx-dot[data-c="envios"],.bx-tag[data-c="envios"]{--c:#1D4ED8}
.bx-dot[data-c="impuestos"],.bx-tag[data-c="impuestos"]{--c:#7C3AED}
.bx-dot[data-c="ads"],.bx-tag[data-c="ads"]{--c:#DB2777}
.bx-dot[data-c="importacion"],.bx-tag[data-c="importacion"]{--c:#0B6E4F}
.bx-dot[data-c="seguro"],.bx-tag[data-c="seguro"]{--c:#0E7490}
.bx-dot[data-c="noticias"],.bx-tag[data-c="noticias"]{--c:#15153A}
.bx-dot{background:var(--c,var(--ml-tinta))}
.bx-tag{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--c,var(--ml-tinta));margin-bottom:.35rem}
.bx-new{display:inline-block;margin-left:.45rem;padding:.08rem .45rem;border-radius:999px;background:var(--ml-amarillo);color:var(--ml-tinta);font-size:.66rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;vertical-align:.1em}
.bx-meta{display:block;font-size:.76rem;color:var(--ink-60);margin-top:.35rem}
.bx-sec{padding:2.2rem 0 .6rem}
.bx-h{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;border-top:3px solid var(--ml-tinta);padding-top:.7rem;margin-bottom:1rem}
.bx-h h2{display:flex;align-items:center;gap:.55rem;font-size:clamp(1.3rem,3.2vw,1.65rem)}
.bx-count{font-size:.8rem;font-weight:600;color:var(--ink-60);white-space:nowrap}
.bx-desc{color:var(--ink-60);font-size:.92rem;margin:-.5rem 0 1rem}
.bx-lead{display:flex;flex-direction:column;background:var(--card);border:1px solid rgba(21,21,58,.14);border-radius:var(--radius);overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .2s}
.bx-lead:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--ml-tinta)}
.bx-lead-img{width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-bottom:1px solid rgba(21,21,58,.1)}
.bx-lead-body{padding:1.1rem 1.2rem 1.25rem}
.bx-lead h3{font-size:clamp(1.25rem,3vw,1.6rem);font-weight:800;line-height:1.2;margin-bottom:.45rem}
.bx-lead p{color:var(--ink-60);font-size:.95rem;margin:0}
.bx-top{display:grid;gap:1rem}
.bx-side{display:grid;gap:.75rem;align-content:start}
.bx-mini{display:grid;grid-template-columns:112px 1fr;gap:.85rem;align-items:start;padding:.6rem;background:var(--card);border:1px solid rgba(21,21,58,.12);border-radius:12px;transition:border-color .2s,box-shadow .2s}
.bx-mini:hover{border-color:var(--ml-tinta);box-shadow:var(--shadow)}
.bx-mini-img{width:112px;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:8px}
.bx-mini-body{display:flex;flex-direction:column;min-width:0}
.bx-mini strong{font-family:var(--display);font-size:1rem;line-height:1.25;color:var(--ml-tinta)}
.bx-mini .bx-tag{margin-bottom:.2rem}
@media (min-width:860px){.bx-top{grid-template-columns:1.3fr 1fr;gap:1.4rem}.bx-lead h3{font-size:1.7rem}}
@media (max-width:420px){.bx-mini{grid-template-columns:88px 1fr}.bx-mini-img{width:88px}}
.bx-band{margin-top:2.4rem;background:var(--ml-tinta);color:#fff;padding:2.2rem 0}
.bx-band h2{color:var(--ml-amarillo);font-size:1.5rem}
.bx-band-sub{color:rgba(255,255,255,.7);font-size:.9rem;margin:.3rem 0 1rem}
.bx-band-grid{display:grid;gap:2rem}
@media (min-width:860px){.bx-band-grid{grid-template-columns:1fr 1fr;gap:2.6rem}}
.bx-steps,.bx-picks{list-style:none;padding:0;display:grid;gap:.6rem}
.bx-steps a{display:grid;grid-template-columns:2.4rem 1fr;column-gap:.8rem;align-items:center;padding:.8rem .9rem;border-radius:12px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);transition:background .2s}
.bx-steps a:hover{background:rgba(255,255,255,.14)}
.bx-n{grid-row:span 2;display:grid;place-items:center;width:2.4rem;height:2.4rem;border-radius:50%;background:var(--ml-amarillo);color:var(--ml-tinta);font-family:var(--display);font-weight:800;font-size:1.1rem}
.bx-steps strong,.bx-picks strong{font-family:var(--display);font-size:1rem;line-height:1.25;color:#fff}
.bx-steps .bx-meta{color:rgba(255,255,255,.6);margin-top:.1rem}
.bx-picks{counter-reset:pk}
.bx-picks a{display:grid;grid-template-columns:2.4rem 1fr;column-gap:.8rem;padding:.6rem 0;border-bottom:1px solid rgba(255,255,255,.12)}
.bx-picks li:last-child a{border-bottom:0}
.bx-picks a::before{counter-increment:pk;content:counter(pk);grid-row:span 2;font-family:var(--display);font-weight:800;font-size:2rem;line-height:1;color:var(--ml-amarillo)}
.bx-picks a span{font-size:.84rem;color:rgba(255,255,255,.7)}
.bx-picks a:hover strong{text-decoration:underline;text-decoration-color:var(--ml-amarillo);text-underline-offset:3px}
.bx-tools{margin-top:2.2rem;padding:1.1rem 1.2rem;background:var(--ml-amarillo-soft);border:1px solid rgba(21,21,58,.16);border-radius:var(--radius)}
.bx-tools p{margin:0 0 .7rem;font-size:.95rem}
.bx-tools-links{display:flex;flex-wrap:wrap;gap:.5rem}
.bx-tools-links a{padding:.45rem .8rem;background:#fff;border:1px solid rgba(21,21,58,.2);border-radius:999px;font-size:.84rem;font-weight:600;color:var(--ml-tinta)}
.bx-tools-links a:hover{border-color:var(--ml-tinta);background:var(--ml-amarillo)}
.bx-cat-grid{display:grid;gap:1rem}
@media (min-width:860px){.bx-cat-grid{grid-template-columns:1fr 1.15fr;gap:1.4rem}.bx-cat-grid.solo{grid-template-columns:minmax(0,560px)}.bx-cat .bx-lead h3{font-size:1.35rem}}
.bx-list{list-style:none;padding:0;border-top:1px solid rgba(21,21,58,.12)}
.bx-list li{border-bottom:1px solid rgba(21,21,58,.12)}
.bx-list a{display:flex;flex-direction:column;padding:.8rem .2rem;border-radius:8px;transition:background .2s}
.bx-list a:hover{background:var(--ml-amarillo-soft)}
.bx-list strong{font-family:var(--display);font-size:1.02rem;line-height:1.3;color:var(--ml-tinta)}
.bx-list a > span:not(.bx-meta){font-size:.86rem;color:var(--ink-60);margin-top:.15rem}
.bx-list .bx-x{display:none}
.bx-cat.is-open .bx-list .bx-x{display:block}
.bx-more{margin-top:.7rem;padding:.55rem 1rem;border:1.5px solid var(--ml-tinta);border-radius:999px;font-size:.86rem;font-weight:700;color:var(--ml-tinta);background:transparent}
.bx-more:hover{background:var(--ml-amarillo)}
.bx-cat:last-of-type{padding-bottom:3rem}
.bx-hero h1{max-width:22ch;font-size:clamp(1.9rem,5.2vw,2.7rem)}
.bx-new{align-self:flex-start}
.bx-mini-body .bx-new,.bx-list .bx-new{margin:0 0 .25rem}
.bx-lead-body .bx-new{vertical-align:.15em}
@media (max-width:859px){.bx-cat .bx-lead-img{display:none}}