/* ====================================================================
   rexxhttp.css - Stylesheet for the RexxHTTP pages
   ====================================================================

   Sections:
     1. Custom properties (the palette and the measures)
     2. Reset / base
     3. Layout (wrapper, header, footer)
     4. Content typography
     5. Cards (the accent-tab pattern)
     6. Buttons and action links
     7. Utilities
     8. Responsive
   ==================================================================== */


/* ====================================================================
   1. CUSTOM PROPERTIES
   ==================================================================== */

:root {
  /* --- Earth palette (epbcn family) --- */
  --salvia:        #4a6153;   /* muted green: headings, brand */
  --salvia-claro:  #6e8a7c;   /* card tabs, soft accents */
  --marron:        #7a6b56;   /* section labels in small caps */
  --dorado:        #c9a84c;   /* highlight / hover colour */
  --dorado-oscuro: #b0913a;

  /* --- Backgrounds --- */
  --fondo:         #f7f4ee;   /* page cream */
  --superficie:    #ffffff;   /* boxes, cards */
  --crema:         #fbf3df;   /* punctual warm highlight */
  --borde:         #cdbf9f;   /* card border */
  --borde-suave:   #e7e7e7;

  /* --- Text --- */
  --tinta:         #333333;
  --tinta-suave:   #555555;
  --tinta-tenue:   #777777;

  /* --- Typography --- */
  --font-titular:  Georgia, "Times New Roman", "Playfair Display", serif;
  --font-cuerpo:   -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                   "Helvetica Neue", Arial, sans-serif;
  --font-mono:     "SFMono-Regular", Consolas, "Liberation Mono", Menlo,
                   monospace;

  /* --- Measures --- */
  --ancho-max:     880px;
  --radio:         3px;
  --gap:           1.25rem;
}


/* ====================================================================
   2. RESET / BASE
   ==================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-cuerpo);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--tinta);
  background-color: var(--fondo);
}

img { max-width: 100%; height: auto; }

a {
  color: var(--salvia);
  /* Discreet, always-on hint that this is a link: a soft underline set
     apart from the text, in a muted tone. It firms up to solid gold on
     hover, so the reader sees the affordance at rest without the heavier
     look of a full solid underline running through body prose. */
  text-decoration: underline;
  text-decoration-color: var(--borde);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}
a:hover, a:focus {
  color: var(--dorado-oscuro);
  text-decoration-color: var(--dorado);
}


/* ====================================================================
   3. LAYOUT - wrapper, header, footer
   ==================================================================== */

.wrap {
  max-width: var(--ancho-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header: brand on the left, subtitle in small caps */
.site-header {
  padding: 2.5rem 0 1.75rem;
  border-bottom: 1px solid var(--borde-suave);
  margin-bottom: 2rem;
}
.site-header .marca {
  font-family: var(--font-titular);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.1;
  color: var(--salvia);
  margin: 0;
}
.site-header .marca a {
  color: inherit;
  /* Rony's rule: every clickable thing shows it is clickable. The brand is
     a link too, so it carries the same discreet underline as body links —
     just the faintest hairline, kept off the text with an offset. */
  text-decoration: underline;
  text-decoration-color: var(--borde);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
.site-header .marca a:hover {
  color: inherit;
  text-decoration-color: var(--dorado);
}
.site-header .lema {
  font-family: var(--font-titular);
  font-style: italic;
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  color: var(--marron);
  margin: 0.35rem 0 0;
}

/* Footer: quiet, centred, earth */
.site-footer {
  margin-top: 3.5rem;
  padding: 1.75rem 0 2.5rem;
  border-top: 1px solid var(--borde-suave);
  text-align: center;
  font-size: 0.85rem;
  color: var(--tinta-tenue);
}
.site-footer a { color: var(--marron); }


/* ====================================================================
   4. CONTENT TYPOGRAPHY
   ==================================================================== */

main { padding-bottom: 1rem; }

h1, h2, h3 {
  font-family: var(--font-titular);
  color: var(--salvia);
  line-height: 1.2;
  margin: 2rem 0 0.75rem;
}
h1 { font-size: clamp(1.6rem, 3.5vw, 2.1rem); }
h2 { font-size: clamp(1.3rem, 2.8vw, 1.6rem); }
h3 { font-size: 1.2rem; }

/* Section label in small caps, with a golden bar underneath
   (the motif from epbcn's funciones-institucionales) */
.rotulo {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.85rem;
  font-weight: bold;
  color: var(--marron);
  margin: 2.5rem 0 1.25rem;
}
.rotulo::after {
  content: "";
  display: block;
  width: 40px;
  height: 2px;
  background: var(--dorado);
  margin-top: 0.5rem;
}

p { margin: 0 0 1rem; }

.intro {
  font-family: var(--font-titular);
  font-style: italic;
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
  line-height: 1.55;
  color: var(--tinta-suave);
  margin-bottom: 1.5rem;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--crema);
  padding: 0.1em 0.35em;
  border-radius: var(--radio);
}
pre {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.5;
  background: var(--superficie);
  border: 1px solid var(--borde-suave);
  border-left: 3px solid var(--salvia-claro);
  border-radius: 0 var(--radio) var(--radio) 0;
  padding: 1rem 1.25rem;
  overflow-x: auto;
}
pre code { background: none; padding: 0; }


/* ====================================================================
   5. CARDS - the accent-tab pattern
   ====================================================================
   Plain white box + a coloured tab on the left + a discreet hover
   feedback (the tab turns golden). It is the motif that repeats all
   over the epbcn family (.servicio, .tarjeta-persona).
   ==================================================================== */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--gap);
  margin: 1.5rem 0;
}

.card {
  display: block;
  background: var(--superficie);
  border: 1px solid var(--borde-suave);
  border-left: 3px solid var(--salvia-claro);
  border-radius: 0 var(--radio) var(--radio) 0;
  padding: 1.1rem 1.35rem;
  color: inherit;
  text-decoration: none;
  transition: border-left-color 0.15s ease, box-shadow 0.15s ease;
}
a.card:hover, a.card:focus {
  border-left-color: var(--dorado);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.06);
  text-decoration: none;
}
.card .card-title {
  font-family: var(--font-titular);
  font-size: 1.1rem;
  color: var(--salvia);
  margin: 0 0 0.3rem;
  /* Same discreet hint as links: the card is clickable, so its title
     wears the hairline underline. The description below stays clean. */
  text-decoration: underline;
  text-decoration-color: var(--borde);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}
a.card:hover .card-title, a.card:focus .card-title {
  text-decoration-color: var(--dorado);
}
.card .card-desc {
  font-size: 0.92rem;
  color: var(--tinta-suave);
  line-height: 1.5;
  margin: 0;
}


/* ====================================================================
   6. BUTTONS AND ACTION LINKS
   ==================================================================== */

.btn {
  display: inline-block;
  font-family: var(--font-cuerpo);
  font-size: 0.95rem;
  padding: 0.5rem 1.15rem;
  border-radius: var(--radio);
  border: 1px solid var(--salvia);
  background: var(--salvia);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease;
}
.btn:hover, .btn:focus {
  background: var(--salvia-claro);
  border-color: var(--salvia-claro);
  color: #fff;
  text-decoration: none;
}
.btn-ghost {
  background: transparent;
  color: var(--salvia);
}
.btn-ghost:hover, .btn-ghost:focus {
  background: var(--salvia);
  color: #fff;
}


/* ====================================================================
   7. UTILITIES
   ==================================================================== */

.text-center { text-align: center; }
.muted       { color: var(--tinta-tenue); }
.mt-0        { margin-top: 0; }


/* ====================================================================
   8. CODE STYLE BAR - the Rexx highlight-style chooser
   ====================================================================
   A quiet control that sits at the top of the content, above the first
   code block. It reads as a "view" control, not page furniture: right-
   aligned, small caps label, and a select restyled away from the raw
   browser widget into the earth palette (salvia border, golden focus,
   custom golden chevron).
   ==================================================================== */

.code-style-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  margin: 0 0 1.75rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--borde-suave);
}
/* The bar ships with the `hidden` attribute and JS removes it only when the
   page has highlighted code. But `display: flex` above outranks the UA
   `[hidden] { display: none }` rule, so without this the bar shows through
   even while hidden. Restore the attribute's meaning explicitly. */
.code-style-bar[hidden] {
  display: none;
}

.code-style-bar__label {
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.75rem;
  font-weight: bold;
  color: var(--marron);
}

.code-style-bar__select {
  font-family: var(--font-cuerpo);
  font-size: 0.9rem;
  color: var(--tinta);
  background-color: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 0.35rem 2rem 0.35rem 0.7rem;
  cursor: pointer;
  /* Drop the native widget chrome and paint our own golden chevron. */
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23c9a84c' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.code-style-bar__select:hover {
  border-color: var(--salvia-claro);
}
.code-style-bar__select:focus {
  outline: none;
  border-color: var(--salvia);
  box-shadow: 0 0 0 2px rgba(201, 168, 76, 0.25);
}


/* ====================================================================
   9. RESPONSIVE
   ==================================================================== */

@media (max-width: 600px) {
  .site-header { padding: 1.75rem 0 1.25rem; }
  .grid { grid-template-columns: 1fr; }
}