/* Economía en un baúl · Herramientas — hoja de estilos común.
   Layout: cabecera fina con marca, contenido centrado (artículos a ~70ch, herramientas a 1120px), pie con enlaces legales. */
@font-face { font-family: "Bricolage Grotesque"; font-weight: 500; font-style: normal; font-display: swap; src: url("fonts/bricolage-grotesque-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "Bricolage Grotesque"; font-weight: 700; font-style: normal; font-display: swap; src: url("fonts/bricolage-grotesque-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 400; font-style: normal; font-display: swap; src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 400; font-style: italic; font-display: swap; src: url("fonts/ibm-plex-sans-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 500; font-style: normal; font-display: swap; src: url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 600; font-style: normal; font-display: swap; src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 400; font-style: normal; font-display: swap; src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 500; font-style: normal; font-display: swap; src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); }

:root {
  --paper: #f4f7f5;
  --surface: #ffffff;
  --ink: #13201c;
  --muted: #5a6a64;
  --line: #d7e0dc;
  --accent: #0d6a54;
  --accent-soft: #d9eee6;
  --contrib: #b9c7c1;
  --cost: #a8620e;
  --cost-soft: #f5e8d6;
  --display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1613; --surface: #15201c; --ink: #e5eee9; --muted: #98aaa2; --line: #29372f;
    --accent: #4cc59c; --accent-soft: #173a2f; --contrib: #44544d; --cost: #e3a24c; --cost-soft: #3a2b16;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0e1613; --surface: #15201c; --ink: #e5eee9; --muted: #98aaa2; --line: #29372f;
  --accent: #4cc59c; --accent-soft: #173a2f; --contrib: #44544d; --cost: #e3a24c; --cost-soft: #3a2b16;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 16px; line-height: 1.6; }
img { max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }

/* ---------- Cabecera y pie ---------- */
.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.site-header .inner { max-width: 1120px; margin: 0 auto; padding-inline: 20px; padding-block: 14px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--display); font-weight: 700; font-size: 20px; letter-spacing: -.01em; }
.brand-mark { width: 26px; height: 26px; border-radius: 7px; background: var(--accent); display: grid; place-items: center; color: var(--surface); font-family: var(--mono); font-size: 14px; font-weight: 500; }
.brand-sub { font-family: var(--body); font-weight: 500; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px; }
.site-nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14.5px; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a[aria-current="page"] { font-weight: 600; }

.site-footer { border-top: 1px solid var(--line); margin-top: 64px; }
.site-footer .inner { max-width: 1120px; margin: 0 auto; padding-inline: 20px; padding-block: 28px 40px; display: grid; gap: 14px; font-size: 13.5px; color: var(--muted); }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); }
.site-footer p { margin: 0; max-width: 80ch; }

/* ---------- Estructuras de página ---------- */
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: 20px; padding-block: 32px 24px; display: grid; gap: 28px; }
.eyebrow { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); font-weight: 600; }
h1, h2, h3 { text-wrap: balance; }
h1 { font-family: var(--display); font-weight: 700; font-size: clamp(30px, 5vw, 44px); line-height: 1.08; margin: 0; letter-spacing: -.01em; }
.lede { margin: 0; color: var(--muted); font-size: 17px; max-width: 64ch; }
.page-head { display: grid; gap: 10px; max-width: 72ch; }

/* ---------- Portada ---------- */
.hero { display: grid; gap: 14px; max-width: 760px; padding-block: 16px 8px; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); }
.feature { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; text-decoration: none; color: var(--ink); }
.feature:hover { border-color: var(--accent); }
.feature-text { padding: 26px; display: grid; gap: 10px; align-content: start; }
.feature-text h2 { font-family: var(--display); font-size: 26px; margin: 0; line-height: 1.15; }
.feature-text p { margin: 0; color: var(--muted); }
.feature-cta { font-weight: 600; color: var(--accent); }
.feature-figure { background: var(--accent-soft); padding: 26px; display: grid; gap: 8px; align-content: center; }
.feature-figure .k { font-size: 13px; color: var(--muted); }
.feature-figure .v { font-family: var(--display); font-weight: 700; font-size: clamp(34px, 5vw, 46px); color: var(--accent); line-height: 1; font-variant-numeric: tabular-nums; }
.feature-figure .s { font-size: 13px; color: var(--muted); }
@media (max-width: 760px) { .feature { grid-template-columns: minmax(0, 1fr); } }

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.section-head h2, .h2 { font-family: var(--display); font-weight: 700; font-size: 26px; margin: 0; }
.guide-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
@media (max-width: 760px) { .guide-list { grid-template-columns: minmax(0, 1fr); } }
.guide-list li { border-bottom: 1px solid var(--line); }
.guide-list a { display: grid; gap: 4px; padding: 18px 16px 18px 0; text-decoration: none; color: var(--ink); }
.guide-list a:hover strong { color: var(--accent); }
.guide-list strong { font-size: 17px; font-weight: 600; }
.guide-list span { color: var(--muted); font-size: 14.5px; }
.method { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
@media (max-width: 760px) { .method { grid-template-columns: minmax(0, 1fr); } }
.method h3 { font-size: 16px; margin: 0 0 4px; }
.method p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- Artículos ---------- */
.article { max-width: 720px; margin: 0 auto; padding-inline: 20px; padding-block: 28px 8px; display: grid; gap: 22px; }
.crumbs { font-size: 13px; color: var(--muted); display: flex; gap: 6px; flex-wrap: wrap; }
.crumbs a { color: var(--muted); }
.byline { display: flex; gap: 6px 14px; flex-wrap: wrap; font-size: 13.5px; color: var(--muted); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-block: 10px; }
.byline a { color: var(--ink); }
.prose { font-size: 17px; line-height: 1.7; }
.prose > * { margin: 0; }
.prose > * + * { margin-top: 1em; }
.prose h2 { font-family: var(--display); font-weight: 700; font-size: 27px; line-height: 1.2; margin-top: 1.8em; }
.prose h3 { font-size: 19px; margin-top: 1.5em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: .4em; }
.prose strong { font-weight: 600; }
.prose .table-wrap { margin-top: 1.2em; }
.prose table { font-size: 15px; min-width: 0; }
.callout { background: var(--accent-soft); border-radius: 12px; padding: 18px 20px; display: grid; gap: 6px; font-size: 16px; }
.callout strong { font-family: var(--display); font-size: 19px; }
.callout a { font-weight: 600; }
.warn { background: var(--cost-soft); border-radius: 12px; padding: 16px 20px; font-size: 15.5px; }
.toc { border-left: 3px solid var(--line); padding-left: 16px; font-size: 15px; }
.toc p { margin: 0 0 4px; font-weight: 600; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.toc ol { margin: 0; padding-left: 1.2em; }
.related { display: grid; gap: 10px; border-top: 1px solid var(--line); padding-top: 18px; }
.related h2 { font-family: var(--display); font-size: 20px; margin: 0; }
.related ul { margin: 0; padding-left: 1.2em; }
.author-box { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 14px; align-items: start; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px; font-size: 14.5px; }
.avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--accent); color: var(--surface); display: grid; place-items: center; font-family: var(--display); font-weight: 700; font-size: 20px; }
.author-box p { margin: 0; color: var(--muted); }
.author-box strong { color: var(--ink); }

/* ---------- Tablas ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: right; padding: 10px 8px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; white-space: normal; }
thead th { font-size: 12.5px; font-weight: 600; color: var(--muted); }
td.num { font-family: var(--mono); }
.prose td.num, .prose th { font-size: 14px; }

/* ---------- Calculadora ---------- */
.tool { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 860px) { .tool { grid-template-columns: minmax(0, 1fr); } }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; display: grid; gap: 18px; position: sticky; top: calc(env(safe-area-inset-top, 0px) + 16px); font-size: 15px; }
@media (max-width: 860px) { .panel { position: static; } }
.panel h2, .section-title { font-family: var(--display); font-weight: 500; font-size: 18px; margin: 0; }
.group { display: grid; gap: 12px; }
.group + .group { border-top: 1px solid var(--line); padding-top: 16px; }
.group-label { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.field { display: grid; grid-template-columns: minmax(0, 1fr); gap: 4px; min-width: 0; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; color: var(--muted); }
.input { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.input:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.input { min-width: 0; }
.input input { flex: 1 1 auto; width: 100%; min-width: 0; border: 0; background: transparent; color: var(--ink); font-family: var(--mono); font-size: 15px; padding: 9px 4px 9px 10px; outline: none; font-variant-numeric: tabular-nums; }
.input span { padding-right: 10px; color: var(--muted); font-size: 13px; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: 999px; padding: 5px 11px; font: 500 12.5px var(--body); cursor: pointer; }
.chip:hover { border-color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--surface); }
.check { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--muted); cursor: pointer; }
.check input { accent-color: var(--accent); margin-top: 3px; }
.hint { font-size: 12px; color: var(--muted); margin: 0; line-height: 1.5; }

.results { display: grid; gap: 24px; min-width: 0; font-size: 15px; }
.headline { display: grid; gap: 6px; }
.headline .label { font-size: 13px; color: var(--muted); }
.big { font-family: var(--display); font-weight: 700; font-size: clamp(40px, 8vw, 64px); line-height: 1; letter-spacing: -.02em; color: var(--accent); font-variant-numeric: tabular-nums; }
.summary { margin: 0; max-width: 62ch; font-size: 16px; }
.summary b { font-weight: 600; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
@media (max-width: 640px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.stat { padding: 14px 12px 14px 0; display: grid; gap: 2px; }
.stat + .stat { padding-left: 14px; border-left: 1px solid var(--line); }
@media (max-width: 640px) {
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
}
.stat .k { font-size: 12px; color: var(--muted); }
.stat .v { font-family: var(--mono); font-size: 18px; font-weight: 500; font-variant-numeric: tabular-nums; }
.stat .v.cost { color: var(--cost); }
.stat .s { font-size: 11.5px; color: var(--muted); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px 18px 14px; display: grid; gap: 12px; min-width: 0; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12.5px; color: var(--muted); }
.legend i { display: inline-block; width: 18px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.lg-index { background: var(--accent); }
.lg-contrib { background: var(--contrib); }
.lg-active { background: repeating-linear-gradient(90deg, var(--cost) 0 5px, transparent 5px 8px); height: 3px !important; }
svg.chart { width: 100%; height: auto; display: block; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .tick { fill: var(--muted); font: 11px var(--mono); }
.chart .a-index { fill: var(--accent-soft); }
.chart .a-contrib { fill: var(--contrib); opacity: .7; }
.chart .l-index { fill: none; stroke: var(--accent); stroke-width: 2.5; }
.chart .l-active { fill: none; stroke: var(--cost); stroke-width: 2; stroke-dasharray: 6 4; }
.chart .dot-index { fill: var(--accent); }
.chart .dot-active { fill: var(--cost); }
.compare-intro { margin: 0; color: var(--muted); font-size: 14px; max-width: 65ch; }
.card table { min-width: 560px; }
td .name { font-weight: 600; display: block; }
td .sub { font-size: 12px; color: var(--muted); }
tr.best td.net { color: var(--accent); font-weight: 600; }
td.loss { color: var(--cost); }
.diff { font-size: 12px; color: var(--cost); font-family: var(--mono); }
details.years { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 4px 18px; }
details.years summary { cursor: pointer; padding: 12px 0; font-weight: 600; }
details.years[open] summary { border-bottom: 1px solid var(--line); margin-bottom: 4px; }
details.years table { min-width: 420px; }
.tool-faq { max-width: 72ch; }
.scale { border-collapse: collapse; width: auto; font-size: 14px; }
.scale td { padding: 4px 22px 4px 0; text-align: left; border-bottom: 1px solid var(--line); font-family: var(--mono); }
.note { font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 14px; max-width: 80ch; }