/* ============================================================
   Revistas JRCH Fiducia — sistema visual institucional
   Lex Mechanica (brass) · Ratio Federal (steel) · Hub (ink)
   ============================================================ */

:root {
  --ink:        #0c1626;   /* navy casi negro institucional */
  --ink-2:      #13233b;   /* navy de paneles */
  --paper:      #f7f5ef;   /* off-white cálido */
  --paper-2:    #ffffff;
  --text:       #1a2433;   /* texto sobre papel */
  --text-soft:  #51607a;
  --muted:      #8a96a8;
  --line:       #e3ddd0;   /* hairline sobre papel */
  --line-ink:   rgba(255,255,255,.14);
  --accent:     #b8893b;   /* brass — autoridad legal (default/Hub) */
  --accent-ink: #d8b46a;   /* brass claro para fondos oscuros */
  --on-ink:     #eef1f6;
  --on-ink-soft:#a9b4c6;
  --maxw: 1120px;
  --r: 14px;
  --shadow: 0 18px 50px -28px rgba(12,22,38,.55);
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

body.theme-lex   { --accent: #b8893b; --accent-ink: #d8b46a; } /* brass/gold */
body.theme-ratio { --accent: #355a86; --accent-ink: #7fa6d4; } /* steel blue — poder federal */
body.theme-ai    { --accent: #4f7f68; --accent-ink: #93d0b2; } /* institutional green — governance */

/* ---------- reset ---------- */
*,*::before,*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--paper);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4 { font-family: var(--serif); font-weight: 600; line-height: 1.12; letter-spacing: 0; margin: 0 0 .4em; }
p { margin: 0 0 1em; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(20px, 5vw, 40px); }

/* ---------- kicker / rules ---------- */
.kicker {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 16px; display: inline-flex; gap: 10px; align-items: center;
}
.kicker::before { content:""; width: 26px; height: 1px; background: var(--accent); display:inline-block; }
.eyebrow { font-family: var(--mono); font-size: 11.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(12,22,38,.86);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line-ink);
  color: var(--on-ink);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 64px; }
.brand { display: flex; align-items: baseline; gap: 10px; font-family: var(--serif); font-size: 19px; letter-spacing: 0; color: var(--on-ink); }
.brand b { font-weight: 600; }
.brand .brand-mark { color: var(--accent-ink); font-weight: 600; }
.nav-links { display: flex; gap: 26px; align-items: center; list-style: none; margin: 0; padding: 0; }
.nav-links a { font-size: 14.5px; color: var(--on-ink-soft); transition: color .18s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--on-ink); }
.nav-cta { font-size: 14px !important; color: var(--ink) !important; background: var(--accent-ink); padding: 8px 16px; border-radius: 999px; font-weight: 600; }
.nav-cta:hover { filter: brightness(1.06); }
.nav-toggle { display: none; background: none; border: 0; color: var(--on-ink); font-size: 22px; cursor: pointer; }

/* ---------- hero ---------- */
.hero { background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%); color: var(--on-ink); position: relative; overflow: hidden; }
.hero::after {
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(900px 380px at 78% -10%, rgba(216,180,106,.16), transparent 60%),
    radial-gradient(700px 300px at 0% 120%, rgba(127,166,212,.12), transparent 60%);
  pointer-events:none;
}
.hero--ai-governance {
  background:
    linear-gradient(90deg, rgba(12,22,38,.98) 0%, rgba(12,22,38,.88) 38%, rgba(12,22,38,.45) 100%),
    url("/assets/img/ai-governance-radar-hero.png") center right / cover no-repeat,
    var(--ink);
}
.hero--ai-governance::after {
  background:
    linear-gradient(180deg, rgba(12,22,38,.08), rgba(12,22,38,.42)),
    radial-gradient(760px 320px at 68% 86%, rgba(147,208,178,.18), transparent 62%);
}
.hero .wrap { position: relative; padding-top: clamp(64px, 9vw, 110px); padding-bottom: clamp(56px, 8vw, 96px); }
.hero h1 { font-size: clamp(34px, 6vw, 64px); max-width: 16ch; color: #fff; }
.hero .lead { font-size: clamp(17px, 2.2vw, 21px); color: var(--on-ink-soft); max-width: 60ch; margin-top: 8px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.issue-hero h1 { max-width: 18ch; }
.issue-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; color: var(--on-ink-soft); font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.issue-meta span { border: 1px solid var(--line-ink); border-radius: 999px; padding: 5px 10px; background: rgba(255,255,255,.04); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 9px; font-family: var(--sans); font-weight: 600; font-size: 15px; padding: 13px 24px; border-radius: 999px; border: 1px solid transparent; cursor: pointer; transition: transform .15s, filter .15s, background .15s, border-color .15s; }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent-ink); color: var(--ink); }
.btn--primary:hover { filter: brightness(1.07); }
.btn--ghost { background: transparent; color: var(--on-ink); border-color: var(--line-ink); }
.btn--ghost:hover { border-color: var(--accent-ink); color: #fff; }
.btn--solid { background: var(--accent); color: #fff; }
.btn--solid:hover { filter: brightness(1.06); }
.btn--dark { background: var(--ink); color: var(--on-ink); }
.btn--dark:hover { filter: brightness(1.15); }

/* ---------- sections ---------- */
.section { padding: clamp(56px, 8vw, 96px) 0; }
.section--paper { background: var(--paper); }
.section--white { background: var(--paper-2); }
.section--ink { background: var(--ink); color: var(--on-ink); }
.section--ink h2 { color: #fff; }
.section--ink .section-intro p { color: var(--on-ink-soft); }
.section-head { max-width: 62ch; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(26px, 3.6vw, 40px); }
.section-intro p { color: var(--text-soft); font-size: 18px; }

/* ---------- revistas grid (home) ---------- */
.revistas-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.revistas-grid--three { grid-template-columns: repeat(3, 1fr); }
.revista-card {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r);
  padding: 36px 34px; display: flex; flex-direction: column; position: relative; overflow: hidden;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.revista-card::before { content:""; position:absolute; left:0; top:0; bottom:0; width:4px; background: var(--card-accent, var(--accent)); }
.revista-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #d8cfbd; }
.revista-card.is-lex   { --card-accent: #b8893b; }
.revista-card.is-ratio { --card-accent: #355a86; }
.revista-card.is-ai    { --card-accent: #4f7f68; }
.revista-card h3 { font-size: 28px; }
.revista-card .card-tag { font-family: var(--mono); font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--card-accent, var(--accent)); margin-bottom: 14px; }
.revista-card p { color: var(--text-soft); }
.revista-card .card-cta { margin-top: auto; padding-top: 22px; font-weight: 600; color: var(--card-accent, var(--accent)); display: inline-flex; align-items: center; gap: 8px; }
.revista-card .card-cta .arr { transition: transform .18s; }
.revista-card:hover .card-cta .arr { transform: translateX(4px); }

/* ---------- principle / steps strip ---------- */
.principle { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; counter-reset: step; }
.principle .step { padding: 22px 18px; border: 1px solid var(--line-ink); border-radius: 12px; }
.principle .step .n { font-family: var(--mono); font-size: 12px; color: var(--accent-ink); letter-spacing: .1em; }
.principle .step h4 { font-family: var(--sans); font-size: 15.5px; font-weight: 600; margin: 10px 0 0; color: #fff; }

/* ---------- feature list (sections of a revista) ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 12px; padding: 26px 24px;
  transition: border-color .2s, transform .2s;
}
.feature:hover { border-color: var(--accent); transform: translateY(-3px); }
.feature-link { color: inherit; text-decoration: none; display: block; }
.feature .f-ico { font-family: var(--mono); font-size: 12px; letter-spacing:.16em; text-transform: uppercase; color: var(--accent); }
.feature h4 { font-size: 19px; margin: 12px 0 8px; }
.feature p { color: var(--text-soft); font-size: 15.5px; margin: 0; }

/* ---------- audiences / list inline ---------- */
.pills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.pill { font-size: 13.5px; padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--text-soft); background: var(--paper-2); }
.section--ink .pill { border-color: var(--line-ink); color: var(--on-ink-soft); background: transparent; }

/* ---------- methodology / definition list ---------- */
.deflist { display: grid; grid-template-columns: 1fr; gap: 2px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.deflist .row { display: grid; grid-template-columns: 230px 1fr; gap: 0; }
.deflist .row > div { padding: 16px 20px; border-top: 1px solid var(--line); }
.deflist .row:first-child > div { border-top: 0; }
.deflist .row .k { background: var(--paper); font-weight: 600; font-family: var(--serif); font-size: 16px; }
.deflist .row .v { background: var(--paper-2); color: var(--text-soft); font-size: 15.5px; }

/* ---------- newsletter band ---------- */
.newsletter { background: linear-gradient(180deg, var(--ink-2), var(--ink)); color: var(--on-ink); }
.nl-box { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.nl-box h2 { color: #fff; font-size: clamp(24px, 3.4vw, 36px); }
.nl-box p { color: var(--on-ink-soft); }
.nl-form { display: flex; gap: 10px; flex-wrap: wrap; }
.nl-form input[type=email], .nl-form input[type=text] {
  flex: 1 1 220px; min-width: 0; padding: 14px 16px; border-radius: 10px;
  border: 1px solid var(--line-ink); background: rgba(255,255,255,.06); color: #fff; font: inherit;
}
.nl-form input::placeholder { color: var(--on-ink-soft); }
.nl-form input:focus { outline: 2px solid var(--accent-ink); outline-offset: 1px; }
.nl-note { font-size: 12.5px; color: var(--muted); margin-top: 12px; }
.nl-msg { font-size: 14px; margin-top: 12px; min-height: 1.2em; }
.nl-msg.ok { color: #7fd6a0; }
.nl-msg.err { color: #f0a0a0; }

/* ---------- callout / disclaimer ---------- */
.callout { border-left: 3px solid var(--accent); background: var(--paper-2); padding: 20px 24px; border-radius: 0 12px 12px 0; color: var(--text-soft); font-size: 15.5px; }
.section--ink .callout { background: rgba(255,255,255,.04); color: var(--on-ink-soft); }

/* ---------- issue article ---------- */
.article-shell { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: clamp(32px, 6vw, 72px); align-items: start; }
.article-body { max-width: 74ch; }
.article-body .lede { font-family: var(--serif); font-size: clamp(22px, 3vw, 30px); line-height: 1.25; color: var(--text); margin-bottom: 28px; }
.article-body h2 { font-size: clamp(24px, 3vw, 34px); margin-top: 1.8em; }
.article-body p, .article-body li { color: var(--text-soft); }
.article-body ol { padding-left: 1.25em; }
.article-body li { margin-bottom: 10px; }
.article-body .callout { margin: 36px 0; }
.issue-sidebar { position: sticky; top: 92px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper-2); padding: 24px; box-shadow: var(--shadow); }
.issue-sidebar h3 { font-size: 24px; }
.mini-list { display: grid; gap: 10px; margin: 18px 0 24px; }
.mini-list span { border-top: 1px solid var(--line); color: var(--text-soft); font-size: 14.5px; padding-top: 10px; }
.source-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.source-list a, .text-link { color: var(--accent); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.text-link { display: inline-block; margin-top: 16px; font-size: 14px; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: var(--on-ink-soft); padding: 56px 0 34px; border-top: 1px solid var(--line-ink); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; margin-bottom: 36px; }
.foot-grid h5 { font-family: var(--mono); font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin: 0 0 16px; }
.foot-grid a { display: block; color: var(--on-ink-soft); font-size: 14.5px; padding: 5px 0; transition: color .15s; }
.foot-grid a:hover { color: #fff; }
.foot-brand { font-family: var(--serif); font-size: 20px; color: #fff; }
.foot-brand .brand-mark { color: var(--accent-ink); }
.foot-disclaimer { font-size: 12.5px; color: var(--muted); border-top: 1px solid var(--line-ink); padding-top: 22px; max-width: 80ch; }
.foot-legal { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 12.5px; color: var(--muted); margin-top: 18px; }

/* ---------- prose (article-ready) ---------- */
.prose { max-width: 70ch; }
.prose p, .prose li { color: var(--text-soft); }
.prose h2 { margin-top: 1.6em; }

/* ---------- responsive ---------- */
@media (max-width: 880px) {
  .nav-links { position: fixed; inset: 64px 0 auto 0; flex-direction: column; gap: 0; background: var(--ink); border-bottom: 1px solid var(--line-ink); padding: 8px 0; display: none; }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 14px 28px; }
  .nav-toggle { display: block; }
  .revistas-grid { grid-template-columns: 1fr; }
  .revistas-grid--three { grid-template-columns: 1fr; }
  .principle { grid-template-columns: 1fr 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .nl-box { grid-template-columns: 1fr; gap: 22px; }
  .article-shell { grid-template-columns: 1fr; }
  .issue-sidebar { position: static; }
  .deflist .row { grid-template-columns: 1fr; }
  .deflist .row .k { border-bottom: 0; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .hero--ai-governance {
    background:
      linear-gradient(180deg, rgba(12,22,38,.98) 0%, rgba(12,22,38,.92) 52%, rgba(12,22,38,.7) 100%),
      url("/assets/img/ai-governance-radar-hero.png") center top / cover no-repeat,
      var(--ink);
  }
}
@media (max-width: 520px) {
  .principle { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
}