/* JustoAPI — una sola hoja, sin framework ni build de CSS.
   El mundo visual es el talonario de notas con papel carbón: tinta azul, hoja
   blanca, copia amarilla y copia rosa. Claro = el papel; oscuro = el carbón.
   Una sola familia (Archivo) en dos anchos: condensada para titulares y cifras,
   normal para leer. La monoespaciada solo aparece en código y en valores medidos. */

:root{
  --bg:#F1F2F9; --surface:#FFFFFF; --surface-2:#E7E9F6; --line:#C6CBE8; --line-strong:#141B5C;
  --text:#141B5C; --muted:#4A5296; --link:#2A3BE0;
  --btn-bg:#2A3BE0; --btn-text:#FFFFFF; --btn-hover:#1E2CB8;
  --code-bg:#0E1240; --code-text:#E8EAFF; --code-line:#0E1240;
  --inline-code:#E3E6F6; --note-bg:#FFF3B0; --note-line:#E3C93A;
  --ok:#0B6B4F; --bar:#2A3BE0;
  /* Objetos de papel: no cambian con el tema. Un recibo es un recibo. */
  --paper:#FFFFFF; --paper-yellow:#FFE25A; --paper-pink:#FFB8CC; --paper-ink:#141B5C; --paper-muted:#4A5296;
  --stamp:#D4321F; --deep:#2230C4;
  --display:'Archivo','Arial Narrow','Helvetica Neue',Arial,sans-serif;
  --font:'Archivo',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'Spline Sans Mono',ui-monospace,'Cascadia Code','SF Mono',Consolas,monospace;
  --wrap:1200px; --gutter:clamp(1rem,4vw,2.5rem); --prose:68ch; --radius:8px;
  --ease:cubic-bezier(.16,1,.3,1);
  --shadow:0 1px 1px rgb(20 27 92 / .08),0 12px 28px -8px rgb(20 27 92 / .28);
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0B0E2E; --surface:#141845; --surface-2:#1A1F55; --line:#2C3274; --line-strong:#E8EAFF;
  --text:#E8EAFF; --muted:#A9AFE3; --link:#A3B0FF;
  --btn-bg:#FFE25A; --btn-text:#141B5C; --btn-hover:#FFEC8A;
  --code-bg:#141845; --code-text:#E8EAFF; --code-line:#2C3274;
  --inline-code:#1A1F55; --note-bg:#2A2A1A; --note-line:#6E6420;
  --ok:#6FE0B5; --bar:#FFE25A; --paper:#F4F5FF;
  --shadow:0 1px 1px rgb(0 0 0 / .3),0 16px 32px -8px rgb(0 0 0 / .6);
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0B0E2E; --surface:#141845; --surface-2:#1A1F55; --line:#2C3274; --line-strong:#E8EAFF;
    --text:#E8EAFF; --muted:#A9AFE3; --link:#A3B0FF;
    --btn-bg:#FFE25A; --btn-text:#141B5C; --btn-hover:#FFEC8A;
    --code-bg:#141845; --code-text:#E8EAFF; --code-line:#2C3274;
    --inline-code:#1A1F55; --note-bg:#2A2A1A; --note-line:#6E6420;
    --ok:#6FE0B5; --bar:#FFE25A; --paper:#F4F5FF;
    --shadow:0 1px 1px rgb(0 0 0 / .3),0 16px 32px -8px rgb(0 0 0 / .6);
    color-scheme:dark;
  }
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scrollbar-color:var(--line) var(--bg);scroll-padding-top:5rem}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:1.0625rem;line-height:1.6;-webkit-font-smoothing:antialiased;
  accent-color:var(--link);caret-color:var(--link);
}
::selection{background:var(--paper-yellow);color:var(--paper-ink)}
img,svg{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--link);outline-offset:3px;border-radius:4px}
[hidden]{display:none!important}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--paper-yellow);color:var(--paper-ink);padding:.6rem 1rem;z-index:100;font-weight:600}
.skip-link:focus{left:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}

/* ---------- Tipografía ---------- */
h1,h2,h3,h4{margin:0;text-wrap:balance}
h1,h2,.display{font-family:var(--display);font-stretch:68%;font-weight:780;line-height:.95;letter-spacing:-.012em}
h3,h4{font-weight:650;line-height:1.25;letter-spacing:-.01em}
p,ul,ol,dl{margin:0}
.muted{color:var(--muted)}
code,pre,kbd{font-family:var(--mono)}
table,.price,.r-line dd,.zero,input[type="number"]{font-variant-numeric:tabular-nums}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--line)}
.nav{max-width:var(--wrap);margin:0 auto;padding:.7rem var(--gutter);display:flex;align-items:center;gap:2rem}
.brand{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--display);font-stretch:75%;font-weight:800;font-size:1.45rem;letter-spacing:-.01em;line-height:1}
.mark{flex:none;display:block}
.mark-bg{fill:var(--btn-bg)}
.mark-bar{fill:var(--btn-text)}
.nav-links{display:flex;gap:1.6rem;flex:1;font-size:.975rem;font-weight:500}
.nav-links a{color:var(--muted);padding:.35rem 0;border-bottom:2px solid transparent;transition:color .15s}
.nav-links a:hover{color:var(--text)}
.nav-links a[aria-current]{color:var(--text);border-bottom-color:var(--text)}
.nav-links .nav-cta-mobile,.nav-links .nav-console-mobile{display:none}
.nav-console{font-size:.975rem;font-weight:600;padding:.5rem .6rem;border-radius:var(--radius);transition:background-color .15s}
.nav-console:hover{background:var(--surface-2)}
.nav-actions{display:flex;gap:.5rem;align-items:center;margin-left:auto}
.icon-btn{display:inline-grid;place-items:center;width:2.5rem;height:2.5rem;background:none;border:1px solid transparent;border-radius:var(--radius);color:var(--text);cursor:pointer;transition:background-color .15s}
.icon-btn:hover{background:var(--surface-2)}
.icon-btn svg{grid-area:1/1}
.theme-toggle svg:first-child{display:none}
:root[data-theme="dark"] .theme-toggle svg:first-child{display:block}
:root[data-theme="dark"] .theme-toggle svg:last-child{display:none}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .theme-toggle svg:first-child{display:block}
  :root:not([data-theme="light"]) .theme-toggle svg:last-child{display:none}
}
.menu-toggle{display:none}
.menu-toggle svg:last-child{display:none}
.menu-toggle[aria-expanded="true"] svg:first-child{display:none}
.menu-toggle[aria-expanded="true"] svg:last-child{display:block}

@media(max-width:860px){
  .menu-toggle{display:inline-grid}
  .nav{gap:1rem}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line);padding:.5rem var(--gutter) 1.5rem;
    height:calc(100dvh - 3.9rem);overflow-y:auto;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{font-family:var(--display);font-stretch:68%;font-weight:750;font-size:2.1rem;line-height:1.1;color:var(--text);padding:.7rem 0;border-bottom:1px solid var(--line)}
  .nav-links a[aria-current]{border-bottom-color:var(--line);color:var(--link)}
  .nav-links .nav-console-mobile{display:block}
  .nav .nav-console{display:none}
  .nav-links .nav-cta-mobile{display:block;margin-top:1.25rem;border:0;background:var(--btn-bg);color:var(--btn-text);font-family:var(--font);font-stretch:100%;font-size:1.05rem;font-weight:650;text-align:center;border-radius:var(--radius);padding:.9rem 1rem}
}
@media(max-width:480px){.nav .nav-cta{display:none}}

/* ---------- Botones y enlaces ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:.55rem 1rem;border-radius:var(--radius);font-size:.95rem;font-weight:650;line-height:1.2;border:1.5px solid transparent;cursor:pointer;transition:background-color .15s,border-color .15s,transform .15s var(--ease)}
.btn:active{transform:translateY(1px)}
.btn-lg{padding:.85rem 1.4rem;font-size:1.05rem}
.btn-primary{background:var(--btn-bg);color:var(--btn-text)}
.btn-primary:hover{background:var(--btn-hover)}
.btn-ghost{border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2)}
.actions{display:flex;gap:.75rem;flex-wrap:wrap}
.link,.prose a:not(.btn){color:var(--link);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:.2em}
.link:hover,.prose a:not(.btn):hover{text-decoration-thickness:2.5px}

/* ---------- El recibo ---------- */
.sheet{background:var(--paper);color:var(--paper-ink);border-radius:3px}
.receipt{padding:1.5rem 1.5rem 1.75rem;position:relative}
.r-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap;padding-bottom:.9rem;border-bottom:1.5px solid var(--paper-ink)}
.r-brand{font-family:var(--display);font-stretch:70%;font-weight:800;font-size:1.35rem;line-height:1}
.r-endpoint{font-family:var(--mono);font-size:.8rem;color:var(--paper-muted);background:none;border:0;padding:0}
.r-line{display:flex;justify-content:space-between;align-items:baseline;gap:1.25rem;padding:.6rem 0;border-bottom:1px dashed #B9BFE4}
.r-line dt{color:var(--paper-muted);font-size:.95rem}
.r-line dd{margin:0;font-family:var(--mono);font-size:.95rem;font-weight:500;text-align:right}
.r-total{border-bottom:0;padding-top:1rem;align-items:center}
.r-total dt{color:var(--paper-ink);font-weight:650;font-size:1.05rem}
.r-total dd{font-family:var(--display);font-stretch:68%;font-weight:800;font-size:3.25rem;line-height:.9;letter-spacing:-.01em}
.r-foot{margin-top:.75rem;font-size:.85rem;line-height:1.45;color:var(--paper-muted)}
.stamp{display:inline-block;margin-top:1rem;transform:rotate(-4deg);transform-origin:left center;border:3px solid var(--stamp);color:var(--stamp);font-family:var(--display);font-stretch:68%;font-weight:800;font-size:1.6rem;line-height:1;text-transform:uppercase;letter-spacing:.04em;padding:.3rem .6rem .25rem;border-radius:4px;animation:stamp .35s var(--ease) both}
@keyframes stamp{from{opacity:0;transform:rotate(-4deg) scale(1.5)}}

/* ---------- Hero ---------- */
.home{display:block}
.hero{padding:clamp(2.5rem,7vw,5.5rem) 0 clamp(3rem,6vw,5rem);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(2rem,5vw,5rem);align-items:start}
.hero h1{font-size:clamp(2.9rem,8.4vw,6rem);line-height:.9}
.hero-lede{font-size:clamp(1.1rem,1.6vw,1.3rem);line-height:1.5;max-width:34em;margin-top:1.75rem;color:var(--muted)}
.hero .actions{margin-top:2rem}
.hero-aside{margin-top:1.1rem;font-size:.9rem;color:var(--muted)}

.receipt-stack{min-width:0;max-width:27rem;width:100%;justify-self:end}
.seg{display:inline-flex;padding:3px;gap:3px;border:1.5px solid var(--line-strong);border-radius:999px;margin-bottom:1.5rem}
.seg-btn{font:inherit;font-size:.9rem;font-weight:600;line-height:1.2;padding:.5rem .95rem;border:0;border-radius:999px;background:none;color:var(--text);cursor:pointer;transition:background-color .15s,color .15s}
.seg-btn:hover{background:var(--surface-2)}
.seg-btn[aria-pressed="true"]{background:var(--text);color:var(--bg)}
.sheets{position:relative;filter:drop-shadow(0 14px 22px rgb(10 14 60 / .28)) drop-shadow(0 1px 1px rgb(10 14 60 / .2))}
.sheets .sheet-pink,.sheets .sheet-yellow{position:absolute;inset:0}
.sheet-pink{background:var(--paper-pink);transform:rotate(4.5deg) translate(10px,6px)}
.sheet-yellow{background:var(--paper-yellow);transform:rotate(-2.5deg) translate(-6px,4px)}
/* Borde inferior dentado, como una nota arrancada del talonario. */
.sheet-top{--z:14px;padding-bottom:2.25rem;-webkit-mask:conic-gradient(from -45deg at bottom,#0000,#000 1deg 89deg,#0000 90deg) 50%/var(--z) 100%;mask:conic-gradient(from -45deg at bottom,#0000,#000 1deg 89deg,#0000 90deg) 50%/var(--z) 100%}
@media(prefers-reduced-motion:no-preference){
  .sheet-top{animation:print .9s var(--ease) .15s both}
  .sheet-pink{animation:slip-pink .9s var(--ease) .35s both}
  .sheet-yellow{animation:slip-yellow .9s var(--ease) .3s both}
  .scale-after{animation:shrink 1.5s var(--ease) .7s both}
}
@keyframes print{from{clip-path:inset(0 0 100% 0)}to{clip-path:inset(0 0 0 0)}}
@keyframes slip-pink{from{transform:none;opacity:0}}
@keyframes slip-yellow{from{transform:none;opacity:0}}
@keyframes shrink{from{width:100%}}

/* ---------- Barras a escala ---------- */
.scale{margin:clamp(3rem,6vw,4.5rem) 0 0;display:grid;gap:.6rem}
.scale-row{display:grid;grid-template-columns:4.5rem minmax(0,1fr) 6rem;align-items:center;gap:1rem}
.scale-label{font-weight:600;font-size:.95rem}
.scale-value{font-family:var(--mono);font-weight:500;font-size:.95rem;text-align:right;font-variant-numeric:tabular-nums}
.scale-track{height:1.75rem}
.scale-bar{height:100%;border-radius:2px}
.scale-before{width:100%;border:1.5px solid var(--line-strong);background:repeating-linear-gradient(-45deg,transparent 0 7px,var(--line) 7px 8.5px)}
.scale-after{width:var(--after);background:var(--bar)}
.scale figcaption{margin-top:.5rem;padding-left:5.5rem;font-size:.9rem;color:var(--muted)}

/* ---------- Bandas de la home ---------- */
.band{padding:clamp(3.5rem,8vw,7rem) 0;border-top:1px solid var(--line)}
.band-head{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:1rem clamp(2rem,5vw,5rem);align-items:end;margin-bottom:clamp(2rem,4vw,3.5rem)}
.band-head h2{font-size:clamp(2.2rem,5.4vw,4rem)}
.band-head p{color:var(--muted);font-size:1.08rem;max-width:32em}
.band-foot{margin-top:2rem;font-weight:600}

/* Libro de APIs */
.ledger{list-style:none;padding:0;margin:0;border-bottom:1.5px solid var(--line-strong)}
.ledger-row{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,4fr) minmax(0,3fr);gap:1.25rem clamp(1.5rem,4vw,3.5rem);padding:1.9rem 0;border-top:1.5px solid var(--line-strong)}
.ledger h3{font-family:var(--display);font-stretch:68%;font-weight:780;font-size:clamp(1.8rem,3.2vw,2.5rem);line-height:1;letter-spacing:-.01em;margin:0 0 .6rem}
.ledger h3 a{color:inherit;text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 2px no-repeat;transition:background-size .3s var(--ease)}
.ledger h3 a:hover{background-size:100% 2px;text-decoration:none}
.ledger p{margin:0}
.ledger-what>p{color:var(--muted);max-width:30em}
.ledger-paths{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.9rem!important}
.ledger-paths code{font-size:.78rem;background:var(--inline-code);border:0;border-radius:4px;padding:.25em .55em;color:var(--text)}
.ledger-key{display:block;font-size:.85rem;font-weight:600;color:var(--muted);margin-bottom:.35rem}
.ledger-price b{font-family:var(--mono);font-weight:500;font-size:1.2rem}

/* Código */
.band-code{background:var(--surface)}
.code-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:1.5rem;align-items:start}
.code-panel{min-width:0}
.code-head{display:flex;justify-content:space-between;align-items:center;background:var(--code-bg);color:var(--code-text);border:1px solid var(--code-line);border-bottom:1px solid rgb(232 234 255 / .16);border-radius:var(--radius) var(--radius) 0 0;padding:.55rem .6rem .55rem 1.1rem;min-height:2.9rem}
.code-title{font-weight:650;font-size:.9rem}
.code-panel pre{margin:0;border-radius:0 0 var(--radius) var(--radius);border-top:0}
.code-note{margin-top:.85rem;font-size:.92rem;color:var(--muted);max-width:38em}
.copy-btn{display:inline-flex;align-items:center;gap:.4rem;font:inherit;font-size:.82rem;font-weight:600;color:var(--code-text);background:rgb(232 234 255 / .1);border:0;border-radius:6px;padding:.4rem .65rem;cursor:pointer;transition:background-color .15s}
.copy-btn:hover{background:rgb(232 234 255 / .2)}
.copy-btn svg:nth-of-type(2){display:none}
.copy-btn.is-copied svg:nth-of-type(1){display:none}
.copy-btn.is-copied svg:nth-of-type(2){display:block}
pre{background:var(--code-bg);color:var(--code-text);border:1px solid var(--code-line);border-radius:var(--radius);padding:1.1rem 1.15rem;overflow-x:auto;margin:0;scrollbar-color:rgb(232 234 255 / .3) transparent}
pre code{overflow-wrap:normal;background:none;border:0;padding:0;font-size:.84rem;line-height:1.7;color:inherit}
code{overflow-wrap:anywhere;font-size:.86em;background:var(--inline-code);padding:.12em .38em;border-radius:4px}
.t-key{color:#A9B7FF}.t-str{color:#FFE25A}.t-num{color:#FFB8CC}

/* $0.00 */
.band-zero{background:var(--paper-yellow);color:var(--paper-ink);border-top:0}
.band-zero .band-head p{color:var(--paper-ink)}
.zero-list{list-style:none;padding:0;margin:0;border-bottom:1.5px solid currentColor}
.zero-list li{display:flex;justify-content:space-between;align-items:baseline;gap:1.5rem;padding:1.05rem 0;border-top:1.5px solid currentColor;margin:0}
.zero-list p{margin:0;font-size:1.12rem;max-width:36em}
.zero-list strong{font-weight:650}
.zero{font-family:var(--display);font-stretch:68%;font-weight:800;font-size:clamp(1.7rem,3.4vw,2.6rem);line-height:1;flex:none}

/* Calculadora */
.calc{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(1.5rem,5vw,5rem);align-items:start}
.calc-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem 1.25rem}
.field{display:flex;flex-direction:column;min-width:0}
.field:last-child{grid-column:1/-1}
.field-label{font-weight:650;font-size:1rem}
.field-hint{font-size:.85rem;color:var(--muted);margin-bottom:.5rem}
.field input{font-family:var(--mono);font-size:1.25rem;font-weight:500;width:100%;min-width:0;padding:.7rem .85rem;color:var(--text);background:var(--surface);border:1.5px solid var(--line);border-radius:var(--radius);transition:border-color .15s}
.field input:hover{border-color:var(--muted)}
.field input:focus-visible{outline:2px solid var(--link);outline-offset:1px;border-color:var(--link)}
.calc-receipt{box-shadow:var(--shadow)}
.calc-receipt .r-total dd{font-size:clamp(2.5rem,5vw,3.5rem)}

/* Hechos */
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(2rem,5vw,5rem)}
.facts>div{padding:1.6rem 0 2rem;border-top:1.5px solid var(--line-strong)}
.facts dt{font-family:var(--display);font-stretch:70%;font-weight:760;font-size:1.7rem;line-height:1.05;margin-bottom:.6rem}
.facts dd{margin:0;color:var(--muted);max-width:32em}

/* Cierre */
.band-close{background:var(--deep);color:#FFFFFF;border-top:0}
.close-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:1.5rem clamp(2rem,5vw,5rem);align-items:end}
.band-close h2{font-size:clamp(2.4rem,6.4vw,4.75rem)}
.band-close p{color:#DCE0FF;margin-bottom:1.5rem;max-width:32em}
.band-close .btn-primary{background:var(--paper-yellow);color:var(--paper-ink)}
.band-close .btn-primary:hover{background:#FFEC8A}
.band-close .btn-ghost{border-color:#FFFFFF;color:#FFFFFF}
.band-close .btn-ghost:hover{background:rgb(255 255 255 / .12)}
.band-close :focus-visible{outline-color:var(--paper-yellow)}

/* ---------- Páginas de contenido ---------- */
main:not(.home){max-width:var(--wrap);margin:0 auto;padding:2rem var(--gutter) 6rem}
.breadcrumbs{font-size:.85rem;color:var(--muted);margin-bottom:clamp(1.5rem,4vw,3rem)}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.45rem;margin:0;padding:0}
.breadcrumbs li+li::before{content:"/";margin-right:.45rem;color:var(--line)}
.breadcrumbs a:hover{color:var(--text);text-decoration:underline}

/* La prosa va en una columna de lectura; lo ancho (tablas, libro, calculadora) cruza la página. */
.prose{display:grid;grid-template-columns:minmax(0,var(--prose)) minmax(0,1fr)}
.prose>*{grid-column:1;min-width:0}
.prose>.wide,.prose>.table-wrap,.prose>h2{grid-column:1/-1}
.prose h1,.api-hero h1{font-size:clamp(2.6rem,7vw,4.75rem);margin-bottom:1.5rem}
.prose>h1+p,.lede{font-size:clamp(1.12rem,1.6vw,1.3rem);line-height:1.5;color:var(--muted)}
.prose h2,.api-page h2{font-stretch:72%;font-size:clamp(1.8rem,3.6vw,2.5rem);line-height:1;margin:3.5rem 0 1.1rem;padding-top:1.4rem;border-top:1.5px solid var(--line-strong)}
.prose h3{font-size:1.25rem;margin:2.25rem 0 .6rem}
.prose h4{font-size:1.05rem;margin:1.75rem 0 .5rem}
.prose p,.prose ul,.prose ol,.prose pre,.prose blockquote,.prose dl{margin-bottom:1.25rem}
.prose ul,.prose ol{padding-left:1.3rem}
.prose li{margin-bottom:.45rem}
.prose li::marker{color:var(--muted)}
.prose strong{font-weight:680}
.prose .actions{margin:.5rem 0 1.75rem}
.prose .ledger,.prose .zero-list,.prose .calc{margin:1rem 0 2rem;padding-left:0}
.prose .ledger li,.prose .zero-list li{margin-bottom:0}
.prose .zero-list{color:var(--text)}
.prose .ledger h3{margin:0 0 .6rem;font-size:clamp(1.8rem,3.2vw,2.5rem)}
.prose .ledger h3 a:not(.btn){color:inherit;text-decoration:none}
.summary{color:var(--muted);max-width:var(--prose);margin-top:1rem}
.note{background:var(--note-bg);border:1px solid var(--note-line);padding:.9rem 1.1rem;border-radius:var(--radius);font-size:.97rem}
blockquote{margin:0;padding:.2rem 0 .2rem 1.25rem;border-left:1.5px solid var(--line-strong);color:var(--muted)}
hr{border:0;border-top:1.5px solid var(--line-strong);margin:3rem 0}

/* ---------- Tablas ---------- */
.table-wrap{overflow-x:auto;margin:0 0 1.75rem}
table{width:100%;border-collapse:collapse;font-size:.97rem}
th,td{text-align:left;padding:.8rem 1rem .8rem 0;border-bottom:1px solid var(--line);vertical-align:top}
thead th{font-weight:600;font-size:.85rem;color:var(--muted);border-bottom:1.5px solid var(--line-strong);white-space:nowrap}
tbody th{font-weight:500}
.price,td strong{font-family:var(--mono);font-weight:500}
.price-table table{font-size:1.05rem}
.price-table .price{font-size:1.2rem;white-space:nowrap}
.method{font-weight:500;font-size:.78rem;padding:.2em .5em;background:var(--inline-code)}
.method-post{color:var(--ok)}
.method-get{color:var(--link)}
.badge{display:inline-block;font-size:.75rem;font-weight:600;padding:.12em .55em;border-radius:999px;border:1px solid var(--line);color:var(--muted);vertical-align:middle}
.badge-stable,.badge-free{color:var(--ok);border-color:currentColor}

.checklist{list-style:none;padding:0;max-width:var(--prose)}
.checklist li{padding:.7rem 0 .7rem 2rem;position:relative;border-bottom:1px solid var(--line)}
.checklist li::before{content:"";position:absolute;left:0;top:.95rem;width:1.15rem;height:1.15rem;background:var(--ok);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/contain no-repeat}

/* ---------- Página de API ---------- */
.api-page section{margin-bottom:1rem}
.api-hero{padding-bottom:1rem}
.api-hero .actions{margin-top:1.75rem}
.api-page .prose{margin-top:2rem}

/* ---------- Blog ---------- */
.post-header{margin-bottom:2rem}
.post-meta{font-size:.9rem;margin:0}
.post-list{list-style:none;padding:0!important}
.post-item{padding:1.5rem 0;border-top:1.5px solid var(--line-strong)}
.post-item h2{border:0;padding:0;margin:0 0 .5rem}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--surface)}
.footer-inner{max-width:var(--wrap);margin:0 auto;padding:3.5rem var(--gutter) 2.5rem;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:2.5rem clamp(2rem,5vw,5rem)}
.footer-brand p{margin-top:.9rem;color:var(--muted);max-width:18em}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:2rem 1.5rem}
.footer-title{font-family:var(--font);font-stretch:100%;font-size:.9rem;font-weight:650;letter-spacing:0;line-height:1.4;margin:0 0 .8rem}
.footer-col ul{list-style:none;margin:0;padding:0;font-size:.95rem}
.footer-col li{margin-bottom:.5rem}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--text);text-decoration:underline;text-underline-offset:.2em}
.footer-bottom{max-width:var(--wrap);margin:0 auto;padding:1.25rem var(--gutter) 2rem;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:.5rem 1.5rem;flex-wrap:wrap;font-size:.875rem;color:var(--muted)}

/* ---------- Pantallas estrechas ---------- */
@media(max-width:900px){
  .hero-grid,.band-head,.code-grid,.calc,.close-grid,.footer-inner{grid-template-columns:minmax(0,1fr)}
  .band-head{align-items:start}
  .receipt-stack{justify-self:start;margin-top:.5rem}
  .ledger-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .ledger-what{grid-column:1/-1}
  .facts{grid-template-columns:minmax(0,1fr)}
  .prose{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:560px){
  body{font-size:1rem}
  .ledger-row{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scale-row{grid-template-columns:minmax(0,1fr) auto;gap:.3rem 1rem}
  .scale-track{grid-column:1/-1;grid-row:2}
  .scale-row+.scale-row{margin-top:.6rem}
  .scale figcaption{padding-left:0}
  .calc-form{grid-template-columns:minmax(0,1fr)}
  .zero-list p{font-size:1rem}
  .receipt{padding-inline:1.15rem}
  .r-total dd{font-size:2.75rem}
  .hero .btn-lg,.band-close .btn-lg{flex:1 1 auto}
  th,td{padding-right:.75rem}
}

/* =====================================================================
   Catálogo, precios, oferta, blog legible y herramientas gratis.
   Las hojas de papel (tarjetas, recibos, herramientas) usan los colores de
   papel fijos: no cambian con el tema, como un recibo no cambia de color.
   ===================================================================== */

.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}

/* Catálogo */
.catalog-filter{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.75rem}
.chip{font:inherit;font-size:.92rem;font-weight:600;line-height:1;padding:.55rem .95rem;border-radius:999px;border:1.5px solid var(--line-strong);background:none;color:var(--text);cursor:pointer;transition:background-color .15s,color .15s}
.chip:hover{background:var(--surface-2)}
.chip[aria-pressed="true"]{background:var(--text);color:var(--bg)}
.catalog{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}
.card-sheet{--cat:var(--paper-pink);display:flex;flex-direction:column;background:var(--paper);color:var(--paper-ink);border-radius:3px;border-top:12px solid var(--cat);padding:1.35rem 1.4rem 1.4rem;box-shadow:var(--shadow);min-width:0}
.card-sheet.cat-image{--cat:var(--paper-yellow)}
.card-sheet.cat-data{--cat:#9EF0CF}
.card-sheet[hidden]{display:none}
.card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem;flex-wrap:wrap}
.art{width:56px;height:56px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;color:var(--paper-ink)}
.card-cat{font-size:.88rem;font-weight:600;color:var(--paper-muted);align-self:center}
.card-sheet h3{font-family:var(--display);font-stretch:68%;font-weight:780;font-size:clamp(1.8rem,2.6vw,2.2rem);line-height:1;margin:1.1rem 0 .55rem}
.card-sheet h3 a{color:inherit}
.card-sheet h3 a:hover{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:.15em}
.card-value{color:var(--paper-muted);font-size:1rem;line-height:1.5;flex:1}
.card-foot{display:flex;justify-content:space-between;align-items:center;gap:.75rem 1rem;flex-wrap:wrap;margin-top:1.25rem;padding-top:1rem;border-top:1px dashed #B9BFE4}
.card-from{font-size:.9rem;color:var(--paper-muted)}
.card-from b{font-family:var(--mono);font-weight:500;font-size:1.15rem;color:var(--paper-ink)}
.badge-beta,.badge-soon{background:var(--paper-yellow);color:var(--paper-ink);border-color:transparent}
.card-top .badge-beta{align-self:center}

/* Oferta */
.offer{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin:0 0 2.25rem}
.offer-sheet{padding:1.5rem 1.5rem 1.6rem;border-radius:3px;background:var(--paper);color:var(--paper-ink);box-shadow:var(--shadow)}
.offer-sheet.o-yellow{background:var(--paper-yellow)}
.offer-sheet.o-pink{background:var(--paper-pink)}
.offer-sheet.o-blue{background:#C9CEFF}
.offer-big{font-family:var(--display);font-stretch:68%;font-weight:800;font-size:clamp(2.8rem,5vw,3.6rem);line-height:.9}
.offer-sheet h3{font-size:1.2rem;margin:.9rem 0 .35rem}
.offer-sheet p{font-size:.97rem;line-height:1.5}
.status-note{margin:0 0 1.75rem;max-width:var(--prose)}

/* Calculadora por tramos */
.calc-sheet{background:var(--paper);color:var(--paper-ink);border-radius:3px;padding:1.5rem;box-shadow:var(--shadow);min-width:0}
.calc-table{font-size:.92rem;margin:0}
.calc-table th,.calc-table td{border-bottom:1px dashed #B9BFE4;color:var(--paper-ink);padding:.6rem .5rem .6rem 0}
.calc-table thead th{color:var(--paper-muted);border-bottom:1.5px solid var(--paper-ink);font-size:.8rem;white-space:nowrap}
.calc-table tbody th{font-weight:600;font-size:.92rem;min-width:9rem}
.calc-table td{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap}
.calc-table td small{display:block;font-family:var(--font);font-size:.72rem;color:var(--paper-muted);font-weight:400}
.calc-table td b{font-weight:500}
.calc-row-total{font-weight:600}
.calc-total{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-top:1.1rem;padding-top:.9rem;border-top:1.5px solid var(--paper-ink);font-weight:650}
.calc-total strong{font-family:var(--display);font-stretch:68%;font-weight:800;font-size:clamp(2.6rem,5vw,3.4rem);line-height:.9}
.calc-sheet .r-foot{margin-top:1rem}
.cell-note{display:block;font-size:.8rem;font-weight:400;color:var(--muted);margin-top:.2rem;max-width:22em;white-space:normal}

/* Blog: índice con tarjetas */
.blog-index h1{font-size:clamp(2.8rem,8vw,5.5rem);line-height:.9;margin-bottom:1rem}
.blog-index>p{color:var(--muted);font-size:1.15rem;max-width:36em;margin-bottom:2.5rem}
.post-cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem}
.post-card{min-width:0}
.post-card-link{display:flex;flex-direction:column;height:100%;background:var(--paper);color:var(--paper-ink);border-radius:3px;overflow:hidden;box-shadow:var(--shadow)}
.post-card-art{display:block;background:var(--paper-yellow);aspect-ratio:1200/630;overflow:hidden}
.post-card-art img{display:block;width:100%;height:100%;object-fit:cover}
.post-card-body{display:flex;flex-direction:column;gap:.5rem;padding:1.25rem 1.35rem 1.5rem;flex:1}
.post-card h2{font-family:var(--display);font-stretch:72%;font-weight:780;font-size:clamp(1.6rem,2.8vw,2rem);line-height:1.02}
.post-card-desc{font-size:.97rem;line-height:1.5;color:var(--paper-muted)}
.post-card .post-meta{color:var(--paper-muted);font-size:.85rem;margin-top:auto;padding-top:.4rem}
.post-card-link:hover h2{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:.12em}
.post-sep{margin-left:1rem}
.post-sep:first-child{margin-left:0}

/* Blog: artículo legible */
.post-header{margin-bottom:2rem;max-width:var(--prose)}
.post-header h1{font-size:clamp(2.5rem,6.2vw,4.4rem);line-height:.95;margin:.4rem 0 1rem}
.post-meta{font-size:.92rem;color:var(--muted);margin:0}
.post-dek{font-size:clamp(1.12rem,1.6vw,1.28rem);line-height:1.55;color:var(--muted)}
.toc{margin:0 0 2.5rem;padding:1.25rem 1.5rem 1.35rem;border:1.5px solid var(--line-strong);border-radius:var(--radius);max-width:var(--prose)}
.toc-title{font-family:var(--display);font-stretch:72%;font-weight:760;font-size:1.25rem;margin-bottom:.5rem}
.toc ol{padding-left:1.2rem;margin:0}
.toc li{margin:.35rem 0;line-height:1.45}
.toc a{color:var(--link);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em}
.post-body{font-size:1.125rem;line-height:1.75}
.post-body p,.post-body li{max-width:none}
.post-body h2{font-size:clamp(1.9rem,3.4vw,2.4rem);scroll-margin-top:5rem}
.post-body h3{scroll-margin-top:5rem}
.post-body img{display:block;height:auto;margin:2rem 0;border-radius:var(--radius)}
.post-body figcaption{font-size:.9rem;color:var(--muted);margin-top:.5rem}
.post-body pre{font-size:.9rem;overflow-x:auto}
.post-cta{margin:3rem 0 0;padding:1.4rem 1.5rem;background:var(--paper-yellow);color:var(--paper-ink);border-radius:3px;max-width:var(--prose);display:flex;flex-wrap:wrap;gap:1rem 1.5rem;align-items:center;justify-content:space-between}
.post-cta p{margin:0;max-width:30em}
.post-cta .btn-primary{background:var(--paper-ink);color:#FFFFFF}
.related{margin-top:4rem;padding-top:2rem;border-top:1.5px solid var(--line-strong)}
.related h2{font-family:var(--display);font-stretch:72%;font-size:clamp(1.8rem,3.4vw,2.4rem);line-height:1;margin-bottom:1.5rem}

/* Herramientas gratis */
.tool-page{max-width:var(--wrap)}
.tool-page-head{margin-bottom:1.5rem}
.tool-page-head h1{font-size:clamp(2.6rem,7vw,4.6rem);line-height:.92;margin-bottom:1rem}
.tool{max-width:58rem;background:var(--paper);color:var(--paper-ink);border-radius:3px;box-shadow:var(--shadow);padding:clamp(1.25rem,3vw,2.1rem);margin:1.5rem 0 2.5rem;min-width:0}
.tool-head{display:flex;justify-content:space-between;align-items:center;gap:.75rem 1rem;flex-wrap:wrap}
.tool-title{font-family:var(--display);font-stretch:68%;font-weight:800;font-size:clamp(1.9rem,4vw,2.5rem);line-height:1}
.tool-drop{margin-top:1.25rem;border:2px dashed var(--paper-ink);border-radius:3px;padding:2rem 1.25rem;display:grid;justify-items:center;gap:.4rem;text-align:center;cursor:pointer;background:#F6F7FF;transition:background-color .15s}
.tool-drop:hover,.tool-drop.is-over{background:var(--paper-yellow)}
.tool-drop[aria-disabled="true"]{cursor:not-allowed;opacity:.55}
.tool-drop-art svg{display:block;width:56px;height:56px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.tool-drop-title{font-family:var(--display);font-stretch:72%;font-weight:760;font-size:1.5rem;line-height:1.1}
.tool-drop-sub{font-size:.95rem;color:var(--paper-muted)}
.tool-files{list-style:none;padding:0;margin:1rem 0 0;display:grid;gap:.1rem}
.tool-file{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;border-bottom:1px dashed #B9BFE4;padding:.55rem 0}
.tool-file-name{flex:1 1 10rem;min-width:0;overflow-wrap:anywhere;font-weight:600}
.tool-file-size{font-family:var(--mono);font-size:.85rem;color:var(--paper-muted)}
.tool-file-btn{font:inherit;font-size:.85rem;background:none;border:1px solid var(--paper-ink);border-radius:6px;padding:.28rem .6rem;color:var(--paper-ink);cursor:pointer}
.tool-file-btn:disabled{opacity:.35;cursor:not-allowed}
.tool-cf{margin-top:1.25rem;min-height:4rem}
.tool-note{font-size:.92rem;color:var(--paper-muted)}
.tool-actions{margin-top:1rem;display:flex;flex-wrap:wrap;gap:.75rem 1.25rem;align-items:center}
.tool .btn-primary:disabled{opacity:.4;cursor:not-allowed}
.tool-quota{font-size:.9rem;color:var(--paper-muted)}
.tool-status{margin-top:.9rem;min-height:1.4em;font-weight:600}
.tool-status.is-error{color:#B3261E}
.tool-result{margin-top:1rem;padding:1rem 1.1rem;border:1.5px solid var(--paper-ink);border-radius:3px;display:flex;flex-wrap:wrap;gap:.75rem 1rem;align-items:center;justify-content:space-between}
.tool-result-line{font-weight:600}
.tool-upgrade{margin-top:1.25rem;padding:1.25rem 1.3rem;background:var(--paper-ink);color:#FFFFFF;border-radius:3px;display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between}
.tool-upgrade p{margin:0;max-width:34em}
.tool-upgrade .btn-primary{background:var(--paper-yellow);color:var(--paper-ink)}
.tool-limits{margin-top:1.25rem;font-size:.87rem;color:var(--paper-muted)}
.tool-copy{margin-top:1rem}
.tool-api-link{margin-top:2rem;max-width:var(--prose)}
.api-cat{font-size:.95rem;color:var(--muted);margin-bottom:.75rem}
.api-cat .badge-beta{margin-left:.5rem}

/* Pantallas estrechas para lo nuevo */
@media(max-width:1020px){
  .catalog{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:900px){
  .offer{grid-template-columns:minmax(0,1fr)}
  .post-cards{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:600px){
  .catalog{grid-template-columns:minmax(0,1fr)}
  .calc-table th,.calc-table td{padding-right:.35rem}
  .calc-table td{font-size:.85rem}
  .calc-table tbody th{min-width:0;font-size:.88rem}
  .tool-drop{padding:1.5rem .9rem}
  .post-body{font-size:1.06rem}
}

/* =====================================================================
   Cabeceras de artículo y figuras en línea (templates/figures.mjs, heroes.mjs).
   Las figuras son hojas de papel fijas (HEX): no cambian con el tema.
   Las animaciones son CSS puro, ligadas al scroll donde el navegador lo admite
   (@supports) y desactivadas con prefers-reduced-motion. Sin animación, cada
   dibujo se ve en su estado final.
   ===================================================================== */
.post-hero{margin:0 0 2.5rem;max-width:var(--prose)}
.post-hero img{display:block;width:100%;height:auto;aspect-ratio:1200/630;border-radius:3px;box-shadow:var(--shadow)}
.fig{margin:2.25rem 0 2.5rem;padding:1rem 1rem .9rem;background:#FFFFFF;color:#141B5C;border-radius:3px;box-shadow:var(--shadow);max-width:var(--prose);min-width:0}
.fig svg{display:block;width:100%;height:auto;overflow:visible}
.fig figcaption{margin-top:.7rem;font-size:.92rem;line-height:1.5;color:#4A5296}

@keyframes fg-grow-y{from{transform:scaleY(0)}}
@keyframes fg-grow-x{from{transform:scaleX(0)}}
@keyframes fg-pop{from{transform:scale(.6);opacity:0}}
@keyframes fg-slide{from{transform:translate(var(--dx,0),var(--dy,0));opacity:.25}}
@keyframes fg-flow{to{stroke-dashoffset:-28}}
@keyframes fg-shrink-in{from{transform:scale(1.5)}to{transform:scale(1)}}
@keyframes mm-merge{from{transform:translate(0,0)}to{transform:translate(var(--dx),var(--dy))}}
@keyframes hover-shrink{from{transform:scale(1)}to{transform:scale(.7)}}

@supports (animation-timeline:view()){
  @media (prefers-reduced-motion:no-preference){
    .fig .fg-grow{transform-box:fill-box;transform-origin:50% 100%;animation:fg-grow-y linear both;animation-timeline:view();animation-range:entry 0% cover 45%}
    .fig .fg-grow-x{transform-box:fill-box;transform-origin:0 50%;animation:fg-grow-x linear both;animation-timeline:view();animation-range:entry 0% cover 45%}
    .fig .fg-pop{transform-box:fill-box;transform-origin:50% 50%;animation:fg-pop linear both;animation-timeline:view();animation-range:entry 0% cover 40%}
    .fig .fg-slide{animation:fg-slide linear both;animation-timeline:view();animation-range:entry 0% cover 50%}
    .merge-motif .mm{animation:mm-merge linear both;animation-timeline:view();animation-range:entry 0% cover 60%}
  }
}
@media (prefers-reduced-motion:no-preference){
  .fig .fg-flow{animation:fg-flow 1.1s linear infinite}
  /* Pantallas sin view() y herramientas: la animación corre una vez al cargar. */
  .tool-anim-shrink{transform-box:fill-box;transform-origin:50% 50%;animation:fg-shrink-in 1.4s var(--ease) .2s both}
  .tool-anim-merge{animation:fg-slide 1.2s var(--ease) .15s both;--dx:-10px;--dy:0}
  .card-sheet .shrink-frame{transform-box:fill-box;transform-origin:50% 50%;transition:transform .45s var(--ease)}
  .card-sheet:hover .shrink-frame{transform:scale(.7)}
  .tool-drop:hover .tool-drop-art svg{transform:translateY(-3px)}
  .tool-drop-art svg{transition:transform .3s var(--ease)}
}

/* Home: el motivo de fusión de PDFs sobre el catálogo */
.merge-motif{display:block;width:min(260px,70%);height:auto;margin:0 0 1.75rem;color:var(--text)}
.merge-motif .mm-sheet{fill:var(--paper);stroke:#141B5C;stroke-width:2.5}
.merge-motif .mm-line{stroke:#B9BFE4;stroke-width:2.5}
.merge-motif .mm-y{fill:#FFE25A}
.merge-motif .mm-k{fill:#FFB8CC}
.merge-motif .mm-b{fill:#C9CEFF}
.merge-motif .mm-arrow{stroke:#141B5C;stroke-width:3;fill:none}
.merge-motif .mm-out{fill:#FFFFFF;stroke:#141B5C;stroke-width:3}

@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}