/* =========================================================================
   eNoticias.es — sistema de diseño editorial
   Índice:
     1. Tokens (color, tipografía, espaciado)
     2. Reset y elementos base
     3. Utilidades
     4. Topbar + Masthead + Navegación
     5. Buscador
     6. Botones e inputs
     7. Tarjetas de artículo (hero, secundaria, fila, sección)
     8. Cabeceras de sección
     9. Portada / mosaico de secciones
    10. Archivo / listado / filtros / paginación
    11. Artículo — cabecera, cuerpo, compartir, relacionados
    12. Página estática
    13. Footer
    14. Estados vacíos, mensajes
    15. Utilidades de scroll (progreso, volver arriba)
    16. Impresión y accesibilidad
   ========================================================================= */

/* 1. Tokens ============================================================= */

:root {
  --font-display: "Fraunces", "Iowan Old Style", "Georgia", serif;
  --font-serif: "Source Serif 4", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --paper: #fbfaf7;
  --paper-raised: #ffffff;
  --paper-sunken: #f2efe8;
  --ink: #16181d;
  --ink-soft: #464b54;
  --ink-faint: #767c87;
  --line: #e1ddd2;
  --line-strong: #cac4b4;

  --accent: #1c3f94;
  --accent-ink: #142c69;
  --accent-soft: #e8ecf8;
  --accent-contrast: #ffffff;

  --flag: #b3121b;
  --flag-soft: #f8e6e4;

  /* Fixed dark surface: intentionally stays near-black in both themes
     (topbar/footer bars), unlike --ink which flips with the theme. */
  --surface-fixed-dark: #14161a;

  --cat-clima: #0e7490;
  --cat-consumo: #b45309;
  --cat-defensa: #3f4a5e;
  --cat-ine: #6d28d9;
  --cat-impuestos: #15803d;
  --cat-sanidad: #be123c;
  --cat-default: var(--accent);

  --shadow-sm: 0 1px 2px rgba(22, 24, 29, 0.06);
  --shadow-md: 0 6px 20px -6px rgba(22, 24, 29, 0.18);
  --shadow-lg: 0 20px 45px -18px rgba(22, 24, 29, 0.32);

  --radius-sm: 3px;
  --radius-md: 6px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;

  --container: 1220px;
  --container-narrow: 760px;

  color-scheme: light;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #131417;
  --paper-raised: #1b1d22;
  --paper-sunken: #1f2126;
  --ink: #eef0f3;
  --ink-soft: #c1c5cd;
  --ink-faint: #8b909b;
  --line: #2c2f36;
  --line-strong: #3b3f48;

  --accent: #7c9bef;
  --accent-ink: #b3c4f5;
  --accent-soft: #212a45;
  --accent-contrast: #0d1526;

  --flag: #ef6b72;
  --flag-soft: #3a1f22;

  --cat-clima: #4dd0e1;
  --cat-consumo: #f4a94e;
  --cat-defensa: #9aa7c0;
  --cat-ine: #b794f6;
  --cat-impuestos: #5fd88f;
  --cat-sanidad: #f47c96;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px -8px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 24px 50px -20px rgba(0, 0, 0, 0.65);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #131417;
    --paper-raised: #1b1d22;
    --paper-sunken: #1f2126;
    --ink: #eef0f3;
    --ink-soft: #c1c5cd;
    --ink-faint: #8b909b;
    --line: #2c2f36;
    --line-strong: #3b3f48;

    --accent: #7c9bef;
    --accent-ink: #b3c4f5;
    --accent-soft: #212a45;
    --accent-contrast: #0d1526;

    --flag: #ef6b72;
    --flag-soft: #3a1f22;

    --cat-clima: #4dd0e1;
    --cat-consumo: #f4a94e;
    --cat-defensa: #9aa7c0;
    --cat-ine: #b794f6;
    --cat-impuestos: #5fd88f;
    --cat-sanidad: #f47c96;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px -8px rgba(0, 0, 0, 0.55);
    --shadow-lg: 0 24px 50px -20px rgba(0, 0, 0, 0.65);
  }
}

/* 2. Reset ============================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.2s ease, color 0.2s ease;
}

img, svg, video { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration-color: var(--line-strong); text-underline-offset: 0.16em; }
a:hover { text-decoration-color: currentColor; }

h1, h2, h3, h4, h5 { font-family: var(--font-display); line-height: 1.14; margin: 0; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
figure { margin: 0; }
hr { border: none; border-top: 1px solid var(--line); margin: var(--space-6) 0; }
button { font: inherit; color: inherit; }
input, select { font: inherit; color: inherit; }

::selection { background: var(--accent); color: var(--accent-contrast); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

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

/* 3. Utilidades ========================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.container--narrow { max-width: var(--container-narrow); }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -3rem;
  background: var(--ink);
  color: var(--paper);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 200;
  transition: top 0.15s ease;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
}
.skip-link:focus { top: var(--space-4); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cat, var(--accent));
}
.eyebrow a { text-decoration: none; }
.eyebrow a:hover { text-decoration: underline; }
.eyebrow::before {
  content: "";
  width: 0.55em;
  height: 0.55em;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

[data-category="clima"]     { --cat: var(--cat-clima); }
[data-category="consumo"]   { --cat: var(--cat-consumo); }
[data-category="defensa"]   { --cat: var(--cat-defensa); }
[data-category="ine"]       { --cat: var(--cat-ine); }
[data-category="impuestos"] { --cat: var(--cat-impuestos); }
[data-category="sanidad"]   { --cat: var(--cat-sanidad); }

.meta {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--ink-faint);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5em;
}
.meta__sep { color: var(--line-strong); }
.meta a { text-decoration: none; color: var(--ink-faint); }
.meta a:hover { color: var(--accent); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35em 0.75em;
  border-radius: 999px;
  background: var(--paper-sunken);
  color: var(--ink-soft);
  text-decoration: none;
  border: 1px solid var(--line);
}
.chip:hover { border-color: var(--line-strong); color: var(--ink); }
.chip--accent { background: var(--accent-soft); color: var(--accent-ink); border-color: transparent; }

/* 4. Topbar + Masthead + Navegación ===================================== */

.topbar {
  background: var(--surface-fixed-dark);
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--font-sans);
  font-size: 0.78rem;
}
.topbar__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: 0.45rem;
}
.topbar__date::first-letter { text-transform: uppercase; }
.topbar__tools { display: flex; align-items: center; gap: var(--space-4); }
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: inherit;
  border-radius: 999px;
  padding: 0.25em 0.75em 0.25em 0.55em;
  cursor: pointer;
  line-height: 1;
}
.theme-toggle:hover { border-color: rgba(255, 255, 255, 0.5); }
.theme-toggle svg { width: 14px; height: 14px; }
.theme-toggle .theme-toggle__icon--dark { display: none; }
:root[data-theme="dark"] .theme-toggle .theme-toggle__icon--light { display: none; }
:root[data-theme="dark"] .theme-toggle .theme-toggle__icon--dark { display: inline-flex; }

.masthead {
  background: var(--paper-raised);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow 0.2s ease;
}
.masthead.is-scrolled { box-shadow: var(--shadow-sm); }

.masthead__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
}

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0.05em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.35rem);
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.015em;
  white-space: nowrap;
}
.logo__accent { color: var(--accent); }
.masthead.is-scrolled .logo { font-size: 1.45rem; }

.masthead__tagline {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--ink-faint);
  letter-spacing: 0.03em;
  display: none;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper-raised);
  cursor: pointer;
}
.nav-toggle__bars { position: relative; width: 18px; height: 12px; }
.nav-toggle__bars span {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease, top 0.2s ease;
}
.nav-toggle__bars span:nth-child(1) { top: 0; }
.nav-toggle__bars span:nth-child(2) { top: 5px; }
.nav-toggle__bars span:nth-child(3) { top: 10px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { top: 5px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { top: 5px; transform: rotate(-45deg); }

.primary-nav {
  border-top: 1px solid var(--line);
  background: var(--paper-raised);
}
.primary-nav__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  row-gap: 0.5rem;
  gap: var(--space-5);
  padding-block: 0.7rem;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.primary-nav a {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink-soft);
  white-space: nowrap;
  padding-block: 0.2rem;
  border-bottom: 2px solid transparent;
}
.primary-nav a:hover, .primary-nav a.is-active { color: var(--ink); border-color: var(--accent); }
.primary-nav a.primary-nav__search-link { display: none; }

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.nav-item__caret {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-left: 0.1rem;
  border: none;
  background: none;
  color: var(--ink-faint);
  cursor: pointer;
  padding: 0;
  flex: none;
}
.nav-item__caret svg { width: 10px; height: 10px; transition: transform 0.15s ease; }
.nav-item.is-open .nav-item__caret svg { transform: rotate(180deg); }

.nav-dropdown {
  list-style: none;
  margin: 0;
  padding: 0;
  display: none;
  flex-basis: 100%;
}
.nav-item.is-open .nav-dropdown { display: block; }
.nav-dropdown a {
  display: block;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink-soft);
  padding: 0.65rem 0 0.65rem var(--space-4);
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  white-space: normal;
}

@media (min-width: 860px) {
  .nav-dropdown {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    padding: 0.4rem;
    margin-top: 0;
    background: var(--paper-raised);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
    z-index: 120;
  }
  .nav-item:hover .nav-dropdown,
  .nav-item:focus-within .nav-dropdown,
  .nav-item.is-open .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-dropdown a {
    padding: 0.55rem 0.7rem;
    border-bottom: none;
    border-radius: var(--radius-sm);
    white-space: nowrap;
  }
  .nav-dropdown a:hover { background: var(--paper-sunken); color: var(--ink); }
}

@media (max-width: 859px) {
  .primary-nav {
    display: none;
    position: fixed;
    inset: 0;
    top: 0;
    border-top: none;
    z-index: 150;
    overflow-y: auto;
  }
  .primary-nav.is-open { display: block; }
  .primary-nav__inner {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 0;
    padding: var(--space-5);
    max-width: 420px;
    min-height: 100%;
    margin-left: auto;
    margin-right: 0;
    background: var(--paper-raised);
    box-shadow: var(--shadow-lg);
  }
  .primary-nav a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
    font-size: 1.05rem;
  }
  .primary-nav__close {
    align-self: flex-end;
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink-faint);
    padding: var(--space-2);
    margin-bottom: var(--space-3);
    cursor: pointer;
  }
  .primary-nav__backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 12, 0.45);
    z-index: 140;
  }
  .primary-nav.is-open ~ .primary-nav__backdrop,
  body.nav-open .primary-nav__backdrop { display: block; }
}

@media (min-width: 860px) {
  .masthead__tagline { display: block; }
  .nav-toggle, .primary-nav__close, .primary-nav__backdrop { display: none; }
  .masthead-search { display: flex; }
}

/* 5. Buscador ============================================================ */

.masthead-search {
  display: none;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.4rem 0.3rem 0.9rem;
  background: var(--paper-sunken);
  gap: 0.5rem;
  transition: border-color 0.15s ease;
}
.masthead-search:focus-within { border-color: var(--accent); }
.masthead-search input {
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  width: 160px;
  outline: none;
  color: var(--ink);
}
.masthead-search input::placeholder { color: var(--ink-faint); }
.masthead-search button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: var(--accent-contrast);
  cursor: pointer;
}
.masthead-search button svg { width: 15px; height: 15px; }

.search-field {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper-raised);
  overflow: hidden;
}
.search-field input {
  flex: 1;
  border: none;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  background: transparent;
  outline: none;
  color: var(--ink);
}
.search-field button {
  padding: 0.75rem 1.1rem;
  border: none;
  background: var(--accent);
  color: var(--accent-contrast);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
}
.search-field button:hover { background: var(--accent-ink); }

/* 6. Botones e inputs ==================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45em;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.65em 1.2em;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.1s ease;
}
.btn:hover { border-color: var(--ink-faint); }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); border-color: var(--accent); color: var(--accent-contrast); }
.btn--primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); }
.btn--ghost { background: transparent; border-color: transparent; color: var(--ink-soft); }
.btn--ghost:hover { color: var(--ink); background: var(--paper-sunken); }
.btn--sm { padding: 0.4em 0.85em; font-size: 0.8rem; }

.select {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper-raised) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6"><path d="M1 1l4 4 4-4" stroke="%23767c87" stroke-width="1.6" fill="none" fill-rule="evenodd"/></svg>') no-repeat right 0.9rem center;
  padding: 0.65em 2.2em 0.65em 0.9em;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--ink);
}

/* 7. Tarjetas de artículo ================================================ */

.card { display: flex; flex-direction: column; min-width: 0; }
.card__media {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--paper-sunken);
  border-radius: var(--radius-md);
}
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.card a.card__media:hover img { transform: scale(1.035); }
.card__body { display: flex; flex-direction: column; gap: 0.55rem; }
.card__title { font-size: 1.05rem; line-height: 1.25; }
.card__title a { text-decoration: none; color: var(--ink); }
.card__title a:hover { color: var(--accent); }
.card__dek {
  font-family: var(--font-sans);
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
}

.card--no-media .card__body { padding-top: 0.15rem; border-top: 3px solid var(--cat, var(--line-strong)); }

/* Hero */
.card--hero {
  display: grid;
  gap: var(--space-5);
}
.card--hero .card__media { aspect-ratio: 16 / 10; }
.card--hero .card__title { font-size: clamp(1.7rem, 1.25rem + 1.8vw, 2.6rem); font-weight: 700; }
.card--hero .card__dek { font-size: 1.08rem; }
.card--hero.card--no-media .card__body { border-top: none; padding-top: 0; }
.card--hero.card--no-media .card__title { padding-top: 0.4rem; border-top: 4px solid var(--cat, var(--accent)); }

/* Secundaria */
.card--secondary .card__media { aspect-ratio: 4 / 3; margin-bottom: 0.9rem; }
.card--secondary .card__title { font-size: 1.15rem; font-weight: 700; }

/* Fila (listas compactas) */
.card--row {
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-top: 1px solid var(--line);
}
.card--row:first-child { border-top: none; padding-top: 0; }
.card--row .card__media { flex: none; width: 128px; aspect-ratio: 4 / 3; }
.card--row.card--no-media .card__body { border-top: none; padding-left: 0.85rem; border-left: 3px solid var(--cat, var(--line-strong)); }
.card--row .card__title { font-size: 1.02rem; }
.card--row .card__body { gap: 0.4rem; flex: 1 1 auto; min-width: 0; }

/* Sección (mosaico portada) */
.card--section .card__media { aspect-ratio: 16 / 10; margin-bottom: 0.75rem; }
.card--section .card__title { font-size: 1rem; font-weight: 700; }
.section-list .card--row { padding-block: 0.85rem; }
.section-list .card--row .card__media { width: 84px; }
.section-list .card--row .card__title { font-size: 0.95rem; line-height: 1.3; }

/* 8. Cabeceras de sección ================================================ */

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  border-bottom: 3px solid var(--ink);
  padding-bottom: 0.5rem;
  margin-bottom: var(--space-5);
}
.section-heading__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--cat, var(--ink));
}
.section-heading__link {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink-faint);
  white-space: nowrap;
}
.section-heading__link:hover { color: var(--accent); }

/* 9. Portada ============================================================= */

.hero-grid {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-6);
  grid-template-columns: minmax(0, 1fr);
}

.secondary-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: minmax(0, 1fr);
}

.latest-rail { display: flex; flex-direction: column; min-width: 0; }

.homepage-main {
  display: grid;
  gap: var(--space-7);
  padding-bottom: var(--space-8);
  grid-template-columns: minmax(0, 1fr);
}

.sections-mosaic {
  display: grid;
  gap: var(--space-7);
  grid-template-columns: minmax(0, 1fr);
}
.section-box { min-width: 0; }

@media (min-width: 640px) {
  .secondary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); align-items: start; }
  .card--hero .card__media { aspect-ratio: 3 / 2; }
  .homepage-main { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); align-items: start; }
  .sections-mosaic { grid-column: 1 / -1; grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 640px) and (max-width: 959px) {
  .sections-mosaic { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 10. Archivo / listado / filtros / paginación =========================== */

.page-header {
  padding-block: var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--space-6);
}
.page-header__eyebrow { margin-bottom: 0.6rem; }
.page-header__title { font-size: clamp(1.6rem, 1.3rem + 1vw, 2.3rem); }
.page-header__lede { color: var(--ink-soft); font-family: var(--font-sans); margin-top: 0.6rem; max-width: 60ch; }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-5);
}
.filter-bar__group { display: flex; gap: var(--space-3); flex-wrap: wrap; flex: 1; min-width: 240px; }
.active-filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: var(--space-5); }
.active-filters .chip svg { width: 11px; height: 11px; }

.archive-list { display: flex; flex-direction: column; }

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
  font-family: var(--font-sans);
}
.pagination__status { color: var(--ink-faint); font-size: 0.85rem; }
.pagination__links { display: flex; gap: 0.6rem; }

/* 11. Artículo ============================================================ */

.article-header {
  padding-block: var(--space-6) var(--space-5);
  max-width: var(--container-narrow);
  margin-inline: auto;
}
.article-header__title {
  font-size: clamp(1.8rem, 1.35rem + 2vw, 2.9rem);
  margin-top: 0.7rem;
}
.article-header__meta {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}

.article-figure { max-width: 1020px; margin: 0 auto var(--space-6); }
.article-figure img { border-radius: var(--radius-md); width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.article-figure figcaption {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-top: 0.6rem;
  padding-inline: 0.1rem;
}

.article-layout {
  display: grid;
  gap: var(--space-7);
  padding-bottom: var(--space-8);
}

.article-body {
  max-width: var(--container-narrow);
  margin-inline: auto;
  font-size: 1.14rem;
  line-height: 1.7;
}
.article-body > p:first-of-type {
  font-family: var(--font-serif);
  font-size: 1.28rem;
  line-height: 1.6;
  color: var(--ink);
}
.article-body > p:first-of-type::first-letter {
  font-family: var(--font-display);
  float: left;
  font-size: 3.4em;
  line-height: 0.85;
  font-weight: 700;
  padding: 0.03em 0.09em 0 0;
  color: var(--accent);
}
.article-body h2 {
  font-size: 1.45rem;
  margin: 1.6em 0 0.7em;
}
.article-body p { margin-bottom: 1.15em; }
.article-body ul, .article-body ol { margin-bottom: 1.15em; }
.article-body li { margin-bottom: 0.4em; }
.article-body strong { font-weight: 700; }
.article-body a { color: var(--accent); text-decoration-color: currentColor; }
.article-body blockquote {
  margin: 1.6em 0;
  padding: 0.2em 0 0.2em 1.3em;
  border-left: 3px solid var(--accent);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--ink-soft);
}
.article-body img { border-radius: var(--radius-md); margin: 1.4em 0; }
.article-body figure { margin: 1.4em 0; }

.article-taxonomy {
  max-width: var(--container-narrow);
  margin: var(--space-6) auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.article-taxonomy__label {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin-right: 0.35rem;
}

.share-row {
  max-width: var(--container-narrow);
  margin: var(--space-6) auto 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.share-row__label {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-faint);
  margin-right: 0.2rem;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink-soft);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
}
.share-btn:hover { border-color: var(--accent); color: var(--accent); }
.share-btn svg { width: 16px; height: 16px; }
.share-btn[data-copied="true"] { border-color: var(--cat-impuestos); color: var(--cat-impuestos); }

.source-note {
  max-width: var(--container-narrow);
  margin: var(--space-6) auto 0;
  padding: var(--space-4) var(--space-5);
  background: var(--paper-sunken);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.source-note a { color: var(--accent); font-weight: 600; text-decoration: none; }
.source-note a:hover { text-decoration: underline; }

.related {
  border-top: 1px solid var(--line);
  padding-top: var(--space-6);
  margin-top: var(--space-8);
}
.related-grid { display: grid; gap: var(--space-5); grid-template-columns: minmax(0, 1fr); }

@media (min-width: 640px) {
  .related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 960px) {
  .related-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink-faint);
}
.back-link:hover { color: var(--accent); }
.back-link svg { width: 13px; height: 13px; }

/* 12. Página estática ===================================================== */

.static-page { padding-block: var(--space-6) var(--space-8); }
.static-page__title { font-size: clamp(1.7rem, 1.35rem + 1.4vw, 2.4rem); margin-bottom: var(--space-5); }
.static-page__body { max-width: var(--container-narrow); font-size: 1.1rem; line-height: 1.7; }
.static-page__body p { margin-bottom: 1.1em; }

/* 13. Footer ============================================================== */

.site-footer {
  background: var(--surface-fixed-dark);
  color: rgba(255, 255, 255, 0.72);
  margin-top: var(--space-8);
}
.site-footer a { color: rgba(255, 255, 255, 0.85); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }

.footer-top {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-7);
  grid-template-columns: minmax(0, 1fr);
}
.footer-brand .logo { color: #fff; }
.footer-brand p {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  max-width: 34ch;
  margin-top: var(--space-3);
}
.footer-col h3 {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-3);
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.55rem; }
.footer-col ul li { font-family: var(--font-sans); font-size: 0.9rem; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-block: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

@media (min-width: 640px) {
  .footer-top { grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); }
}

/* 14. Estados vacíos y mensajes =========================================== */

.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  color: var(--ink-faint);
  font-family: var(--font-sans);
}
.empty-state h3 { font-family: var(--font-display); color: var(--ink); margin-bottom: 0.5rem; }

/* 15. Progreso de lectura y volver arriba ================================= */

.reading-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent);
  z-index: 200;
  transition: width 0.1s linear;
}

.back-to-top {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 90;
}
.back-to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top svg { width: 16px; height: 16px; }

/* 16. Impresión y accesibilidad =========================================== */

@media print {
  .topbar, .masthead, .primary-nav, .site-footer, .share-row, .reading-progress,
  .back-to-top, .related, .filter-bar, .pagination { display: none !important; }
  body { background: #fff; color: #000; }
  .article-body { max-width: 100%; }
  a { color: #000; text-decoration: none; }
}

@media (max-width: 639px) {
  body { font-size: 1rem; }
  .article-body { font-size: 1.05rem; }
}