/* ============================================================
   Dinero Smart — hoja de estilos propia y original
   Tema visual: "libro mayor" (ledger). Tipografía editorial +
   etiquetas monoespaciadas para fechas y datos.
   ============================================================ */

:root {
  --ink: #16243b;
  --ink-soft: #44546d;
  --paper: #fbfbf8;
  --panel: #eef1ea;
  --line: #d7dcd0;
  --line-strong: #b9c0b1;
  --gold: #b3851c;
  --gold-deep: #8a6512;
  --teal: #1c6b66;
  --teal-deep: #134a47;
  --notice: #8f3022;
  --notice-bg: #f9f1ee;
  --notice-line: #e3c7bf;

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1080px;
  --readw: 720px;
  --radius: 4px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a {
  color: var(--teal-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(28, 107, 102, .35);
  transition: color .15s ease, border-color .15s ease;
}
a:hover { color: var(--gold-deep); border-color: var(--gold); }

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
  border-radius: 2px;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.reading { max-width: var(--readw); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 .6rem;
}
.eyebrow--gold { color: var(--gold-deep); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; color: var(--ink); }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.4rem); letter-spacing: -.01em; margin: .2rem 0 .6rem; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin: 2.4rem 0 .8rem; }
h3 { font-size: 1.22rem; margin: 1.8rem 0 .5rem; }

p { margin: 0 0 1.1rem; }

/* ---------- Franja de aviso superior (anti-suplantación) ---------- */
.notice-strip {
  background: var(--notice-bg);
  border-bottom: 1px solid var(--notice-line);
  color: var(--notice);
  font-size: .82rem;
  line-height: 1.5;
}
.notice-strip .container { padding-top: 9px; padding-bottom: 9px; }
.notice-strip strong { font-weight: 600; }
.notice-strip a { color: var(--notice); border-color: rgba(143,48,34,.4); }

/* ---------- Cabecera ---------- */
.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 14px;
  padding-bottom: 14px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; border: 0; }
.brand:hover { color: inherit; }
.brand .mark { flex: 0 0 auto; }
.brand .brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand .brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  color: var(--ink);
  letter-spacing: -.01em;
}
.brand .brand-tag {
  font-family: var(--font-mono);
  font-size: .64rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 3px;
}

.site-nav { display: flex; gap: 4px 2px; flex-wrap: wrap; align-items: center; }
.site-nav a {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 7px 11px;
  border: 0;
  border-radius: var(--radius);
}
.site-nav a:hover { color: var(--ink); background: var(--panel); }
.site-nav a[aria-current="page"] { color: var(--ink); background: var(--panel); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background:
    repeating-linear-gradient(to bottom, transparent 0 31px, rgba(22,36,59,.05) 31px 32px),
    var(--paper);
}
.hero .container { padding-top: 56px; padding-bottom: 52px; }
.hero .lede {
  font-size: 1.18rem;
  color: var(--ink-soft);
  max-width: 60ch;
}
.identity-card {
  margin-top: 26px;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 18px 20px;
  max-width: 64ch;
  font-size: .95rem;
}
.identity-card .k {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold-deep);
  display: block;
  margin-bottom: 6px;
}
.identity-card ul { margin: .4rem 0 0; padding-left: 1.1rem; }
.identity-card li { margin-bottom: .25rem; }

/* ---------- Botones ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 12px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--teal-deep);
  background: var(--teal-deep);
  color: #fff;
  cursor: pointer;
}
.btn:hover { background: var(--teal); border-color: var(--teal); color: #fff; }
.btn--ghost { background: transparent; color: var(--teal-deep); }
.btn--ghost:hover { background: var(--panel); color: var(--teal-deep); }

/* ---------- Índice de artículos (ledger) ---------- */
.section { padding: 52px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.section-head h2 { margin: 0; }

.ledger { border-top: 2px solid var(--ink); }
.ledger-row {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 18px;
  align-items: start;
  padding: 22px 4px;
  border-bottom: 1px solid var(--line);
}
.ledger-row:hover { background: var(--panel); }
.ledger-num {
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--gold-deep);
  padding-top: .35rem;
}
.ledger-main h3 { margin: 0 0 .35rem; }
.ledger-main h3 a { border: 0; color: var(--ink); }
.ledger-main h3 a:hover { color: var(--teal-deep); }
.ledger-main p { margin: 0; color: var(--ink-soft); font-size: .96rem; }
.ledger-meta {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--ink-soft);
  text-align: right;
  white-space: nowrap;
  padding-top: .35rem;
}
.ledger-meta time { display: block; }
.ledger-meta .rt { color: var(--line-strong); }

/* ---------- Artículo ---------- */
.article-header { border-bottom: 1px solid var(--line); padding: 44px 0 30px; }
.article-meta {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .03em;
  color: var(--ink-soft);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.article-body { padding: 34px 0 10px; }
.article-body p, .article-body li { font-size: 1.05rem; }
.article-body h2 { font-size: 1.5rem; }
.article-body ul, .article-body ol { padding-left: 1.3rem; }
.article-body li { margin-bottom: .5rem; }
.pull {
  border-left: 3px solid var(--gold);
  padding: 4px 0 4px 18px;
  margin: 1.6rem 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--teal-deep);
  line-height: 1.3;
}
.callout {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 1.6rem 0;
  font-size: .98rem;
}
.callout .k { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-deep); display:block; margin-bottom: 6px; }
.sources { font-size: .9rem; color: var(--ink-soft); }
.sources h2 { font-size: 1.2rem; }

.edu-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gold-deep);
  background: #fff;
  border: 1px solid var(--gold);
  border-radius: 999px;
  padding: 4px 11px;
}

/* ---------- Formularios ---------- */
.form-wrap { background: #fff; border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 24px; max-width: 560px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-family: var(--font-mono); font-size: .74rem; letter-spacing: .04em; text-transform: uppercase; color: var(--ink); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 11px 12px;
}
.field input:focus, .field textarea:focus { border-color: var(--teal); outline: none; box-shadow: 0 0 0 3px rgba(28,107,102,.15); }
.field textarea { min-height: 130px; resize: vertical; }
.field .hint { font-size: .82rem; color: var(--ink-soft); margin-top: 6px; }
.form-note { font-size: .82rem; color: var(--ink-soft); margin-top: 14px; }
.form-msg { font-size: .92rem; margin-top: 14px; padding: 10px 12px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); display: none; }
.form-msg.show { display: block; }

.newsletter { background: var(--ink); color: #eef1ea; border-radius: var(--radius); padding: 30px; }
.newsletter h2 { color: #fff; margin-top: 0; }
.newsletter p { color: #c4ccd6; }
.newsletter .nl-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.newsletter input { flex: 1 1 220px; font-family: var(--font-body); font-size: 1rem; padding: 11px 12px; border-radius: var(--radius); border: 1px solid #33445c; background: #1f3048; color: #fff; }
.newsletter input::placeholder { color: #8a9bb0; }
.newsletter input:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(179,133,28,.25); }
.newsletter a { color: #e6c879; border-color: rgba(230,200,121,.4); }
.newsletter .nl-msg { font-size: .9rem; margin-top: 12px; color: #cfe3cf; display: none; }
.newsletter .nl-msg.show { display: block; }

/* ---------- Bloques de contenido legal ---------- */
.legal h2 { font-size: 1.4rem; }
.legal h3 { font-size: 1.08rem; }
.legal .updated { font-family: var(--font-mono); font-size: .76rem; color: var(--ink-soft); }
.data-table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .95rem; }
.data-table th, .data-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table th { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }

.kv { list-style: none; padding: 0; margin: 1rem 0; }
.kv li { display: grid; grid-template-columns: 200px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.kv .kv-k { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-soft); }

/* ---------- Pie ---------- */
.site-footer { background: var(--ink); color: #c4ccd6; margin-top: 60px; }
.site-footer .disclaimer {
  background: #1b2c45;
  border-bottom: 1px solid #2a3c57;
  color: #d7c39a;
  font-size: .82rem;
  line-height: 1.55;
}
.site-footer .disclaimer .container { padding-top: 14px; padding-bottom: 14px; }
.site-footer .footer-main .container { padding-top: 38px; padding-bottom: 30px; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.site-footer h4 { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: #8a9bb0; margin: 0 0 12px; font-weight: 500; }
.site-footer a { color: #d7dce3; border: 0; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer .f-brand .brand-name { font-family: var(--font-display); font-size: 1.3rem; color: #fff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; font-size: .9rem; }
.site-footer .legal-line { border-top: 1px solid #2a3c57; font-size: .8rem; color: #8a9bb0; }
.site-footer .legal-line .container { padding-top: 16px; padding-bottom: 22px; }

/* ---------- Banner de cookies ---------- */
.cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 60;
  margin: 0 auto;
  max-width: 760px;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius);
  box-shadow: 0 14px 40px rgba(22, 36, 59, .18);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.cookie-banner[hidden] { display: none; }
.cookie-banner .cookie-text { flex: 1 1 320px; font-size: .9rem; line-height: 1.55; margin: 0; color: var(--ink-soft); }
.cookie-banner .cookie-text strong { color: var(--ink); }
.cookie-banner .cookie-text a { color: var(--teal-deep); }
.cookie-banner .cookie-actions { display: flex; gap: 10px; flex-wrap: wrap; flex: 0 0 auto; }
.cookie-banner .btn { padding: 10px 18px; }
.cookie-banner .btn--ghost { border-color: var(--line-strong); color: var(--ink-soft); }
.cookie-banner .btn--ghost:hover { color: var(--ink); }

@media (max-width: 520px) {
  .cookie-banner { left: 10px; right: 10px; bottom: 10px; padding: 16px; }
  .cookie-banner .cookie-actions { width: 100%; }
  .cookie-banner .cookie-actions .btn { flex: 1; text-align: center; }
}

/* ---------- Utilidades ---------- */
.skip-link { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff; padding: 10px 14px; z-index: 50; }
.skip-link:focus { left: 8px; top: 8px; }
.muted { color: var(--ink-soft); }
.mono { font-family: var(--font-mono); }
.mt0 { margin-top: 0; }
.center { text-align: center; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .site-header .container { gap: 10px; }
  .ledger-row { grid-template-columns: 40px 1fr; }
  .ledger-meta { grid-column: 2; text-align: left; padding-top: 0; }
  .kv li { grid-template-columns: 1fr; gap: 2px; }
  .site-footer .footer-main .container { grid-template-columns: 1fr; gap: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}