/* ==========================================================================
   AdaContable · seniat.css — Registro de Gacetas del SENIAT (/seniat/)
   Extiende «Atelier contable» (tokens de home.css, botones, secciones y
   cta_band) sin tocar la paleta. La metáfora es un libro de registro: folio
   con el número de la Gaceta, filetes dorados y la cabecera de la edición.

   Índice
     1. Portada (berenjena) y cabecera de la última edición
     2. Registro por trimestre
     3. Análisis según la Gaceta
     4. Calendario de vigencias
     5. Método
     6. Etiquetas compartidas (código y estado)
     7. Móvil y tablet: lo útil primero, todo a un toque
     8. Movimiento
   ========================================================================== */

/* 1. Portada --------------------------------------------------------------- */
.ac-reg-hero {
  --ac-text: rgba(247, 242, 232, 0.82);
  --ac-heading: var(--ac-paper);
  --ac-accent: var(--ac-rose-soft);
  --ac-text-muted: #c9a0b4;
  --ac-border: var(--ac-line-light);
  --ac-num: var(--ac-gold-light);
  position: relative;
  overflow: clip;
  padding: calc(var(--ac-header-h) + clamp(48px, 7vw, 96px)) 0 clamp(64px, 8vw, 112px);
  background:
    radial-gradient(60% 80% at 92% 8%, rgba(154, 47, 99, 0.55), transparent 62%),
    radial-gradient(50% 60% at 0% 100%, rgba(184, 137, 62, 0.16), transparent 70%),
    var(--ac-plum);
  color: var(--ac-text);
}

/* Renglones de libro de registro, casi invisibles. */
.ac-reg-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, transparent 0 39px, rgba(247, 242, 232, 0.035) 39px 40px);
  mask-image: linear-gradient(90deg, #000 0%, transparent 70%);
}

.ac-reg-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, var(--ac-gold), transparent 60%);
  opacity: 0.6;
}

.ac-reg-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(48px, 7vw, 112px);
  align-items: center;
}

.ac-reg-hero__crumbs {
  color: var(--ac-text-muted);
}

.ac-reg-hero__crumbs a {
  color: var(--ac-rose-soft);
}

.ac-reg-hero__crumbs span[aria-hidden="true"] {
  color: var(--ac-gold-light);
}

.ac-reg-hero__title {
  max-width: 15ch;
  font-size: clamp(2.7rem, 5.8vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

.ac-reg-hero__title em {
  color: var(--ac-gold-light);
}

.ac-reg-hero__lead {
  max-width: 54ch;
  margin-top: 28px;
  font-size: clamp(1.08rem, 1.35vw, 1.22rem);
  line-height: 1.65;
}

.ac-reg-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.ac-reg-hero__ghost {
  --btn-fg: var(--ac-paper);
  --btn-bd: rgba(247, 242, 232, 0.32);
}

.ac-reg-hero__ghost:hover {
  --btn-bd: var(--ac-paper);
  --btn-bg: rgba(247, 242, 232, 0.08);
}

/* Cifras del registro: tres casillas de libro mayor. */
.ac-reg-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: clamp(44px, 5vw, 64px) 0 0;
  border-top: 1px solid var(--ac-line-light);
}

.ac-reg-stats__item {
  padding: 22px 20px 0 0;
}

.ac-reg-stats__item + .ac-reg-stats__item {
  padding-left: 20px;
  border-left: 1px solid var(--ac-line-light);
}

.ac-reg-stats dt {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ac-text-muted);
}

.ac-reg-stats dd {
  margin: 10px 0 0;
  font-family: var(--ac-serif);
  font-size: clamp(2.2rem, 3.6vw, 3rem);
  line-height: 1;
  color: var(--ac-gold-light);
  font-variant-numeric: lining-nums tabular-nums;
}

.ac-reg-stats__item--date dd {
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  line-height: 1.15;
}

.ac-reg-stats dd span {
  display: block;
  margin-top: 8px;
  font-family: var(--ac-sans);
  font-size: 0.82rem;
  color: var(--ac-rose-soft);
}

/* Cabecera de la última edición: hoja crema sobre dos hojas de atrás. */
.ac-masthead {
  --ac-text: var(--ac-rose-ink);
  --ac-heading: var(--ac-rose);
  position: relative;
  isolation: isolate;
  padding: clamp(28px, 3.4vw, 44px);
  border: 1px solid rgba(184, 137, 62, 0.45);
  border-radius: var(--ac-radius-sm);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.6), transparent 30%),
    var(--ac-white);
  color: var(--ac-text);
  text-align: center;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 40px 80px -40px rgba(0, 0, 0, 0.7),
    0 18px 36px -20px rgba(0, 0, 0, 0.45);
}

.ac-masthead::before,
.ac-masthead::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: var(--ac-radius-sm);
  background: var(--ac-paper-2);
  box-shadow: 0 24px 50px -30px rgba(0, 0, 0, 0.6);
}

.ac-masthead::before {
  transform: translate(14px, 12px) rotate(2.4deg);
  opacity: 0.55;
}

.ac-masthead::after {
  transform: translate(-10px, 8px) rotate(-1.6deg);
  opacity: 0.8;
}

.ac-masthead__kicker {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ac-gold-text);
}

.ac-masthead__name {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 3px double var(--ac-gold);
  font-family: var(--ac-serif);
  font-size: clamp(2.1rem, 3.4vw, 2.9rem);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--ac-rose);
}

.ac-masthead__country {
  margin-top: 8px;
  font-family: var(--ac-serif);
  font-size: 0.98rem;
  font-style: italic;
  color: var(--ac-muted);
}

.ac-masthead__issue {
  margin-top: 16px;
  padding: 8px 0;
  border-block: 1px solid var(--ac-line);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ac-rose-ink);
}

.ac-masthead__number {
  margin-top: 22px;
  font-family: var(--ac-serif);
  font-size: clamp(3.4rem, 6vw, 4.8rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--ac-rose);
  font-variant-numeric: lining-nums;
}

.ac-masthead__number span {
  font-size: 0.4em;
  letter-spacing: 0;
  vertical-align: 0.9em;
  color: var(--ac-gold-text);
}

.ac-masthead__sumario {
  margin-top: 20px;
  font-size: 0.9rem;
  line-height: 1.55;
  text-align: left;
}

.ac-masthead__sumario strong {
  margin-right: 6px;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ac-gold-text);
}

.ac-masthead__foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}

.ac-masthead__link {
  display: inline-flex;
  gap: 10px;
  margin-top: 22px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ac-rose);
  text-decoration: none;
}

.ac-masthead__link::after {
  content: "";
  position: absolute;
  inset: 0;
}

.ac-masthead__link span {
  transition: transform 0.35s var(--ac-ease);
}

.ac-masthead:hover .ac-masthead__link span {
  transform: translateX(4px);
}

.ac-masthead__link:focus-visible {
  outline: none;
}

.ac-masthead:has(.ac-masthead__link:focus-visible) {
  outline: 2px solid var(--ac-gold-light);
  outline-offset: 6px;
}

/* 2. Registro por trimestre ---------------------------------------------- */
.ac-reg-head {
  max-width: 760px;
}

.ac-reg-quarter + .ac-reg-quarter {
  margin-top: clamp(56px, 7vw, 88px);
}

.ac-reg-quarter__label {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 8px;
  font-family: var(--ac-serif);
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  font-style: italic;
  color: var(--ac-rose);
}

.ac-reg-quarter__label::after {
  content: "";
  order: 1;
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--ac-gold), transparent);
  opacity: 0.6;
}

.ac-reg-quarter__count {
  order: 2;
  font-family: var(--ac-sans);
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ac-gold-text);
}

.ac-reg-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ac-reg-entry {
  position: relative;
  display: grid;
  grid-template-columns: minmax(150px, 0.22fr) minmax(0, 1fr) auto;
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
  padding: clamp(28px, 3.4vw, 40px) 0;
  border-bottom: 1px solid var(--ac-line);
  scroll-margin-top: calc(var(--ac-header-h) + 24px);
}

/* Filete de margen que se enciende al pasar: la línea del libro. */
.ac-reg-entry::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--ac-rose);
  transition: width 0.6s var(--ac-ease-out);
}

.ac-reg-entry:hover::before,
.ac-reg-entry:focus-within::before {
  width: 100%;
}

.ac-reg-entry__folio {
  display: grid;
  gap: 4px;
}

.ac-reg-entry__no {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ac-gold-text);
}

.ac-reg-entry__number {
  font-family: var(--ac-serif);
  font-size: clamp(2.4rem, 3.6vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ac-rose);
  font-variant-numeric: lining-nums;
}

.ac-reg-entry__date {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--ac-muted);
}

.ac-reg-entry__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.ac-reg-entry__title {
  max-width: 34ch;
  font-size: clamp(1.35rem, 2.1vw, 1.75rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.ac-reg-entry__title a {
  color: inherit;
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
  transition: background-size 0.5s var(--ac-ease);
}

.ac-reg-entry__title a:hover,
.ac-reg-entry__title a:focus-visible {
  background-size: 100% 1px;
}

/* Nombre oficial de la norma, bajo el titular «Gaceta Oficial N: tema». */
.ac-reg-entry__law {
  margin-top: 8px;
  font-family: var(--ac-serif);
  font-size: 0.98rem;
  font-style: italic;
  line-height: 1.45;
  color: var(--ac-muted);
}

/* Cómo la busca la gente: ayuda al lector y a los buscadores, en tono discreto. */
.ac-reg-entry__aka {
  margin-top: 12px;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--ac-muted);
}

.ac-reg-entry__aka span {
  color: var(--ac-rose-ink);
  font-weight: 600;
}

.ac-reg-entry__summary {
  max-width: 64ch;
  margin-top: 14px;
  line-height: 1.65;
}

.ac-reg-entry__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 18px;
  font-size: 0.88rem;
  color: var(--ac-muted);
}

.ac-reg-entry__facts strong {
  margin-right: 4px;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ac-gold-text);
}

.ac-reg-entry__topics {
  font-weight: 600;
  color: var(--ac-rose);
  text-decoration: none;
}

.ac-reg-entry__topics:hover {
  text-decoration: underline;
}

/* Dos botones del mismo ancho y alto, apilados: primero la explicación. */
.ac-reg-entry__actions {
  display: grid;
  gap: 10px;
  width: 200px;
  padding-top: 4px;
}

/* Los botones de la ficha usan el estilo global (.ac-btn, home.css); aquí
   solo el ancho: los dos iguales, apilados en escritorio. */
.ac-reg-btn {
  width: 100%;
  padding-inline: 16px;
}


.ac-reg-btn__doc {
  flex: none;
  width: 15px;
  height: 19px;
}

.ac-reg-empty {
  padding: clamp(40px, 6vw, 72px);
  border: 1px dashed var(--ac-line-strong);
  background: var(--ac-paper-2);
  text-align: center;
}

.ac-reg-empty__title {
  font-family: var(--ac-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--ac-rose);
}

.ac-reg-empty p + p {
  margin-top: 12px;
}

/* 3. Análisis según la Gaceta -------------------------------------------- */
.ac-reg-group {
  display: grid;
  grid-template-columns: minmax(200px, 0.3fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 72px);
  padding-top: clamp(28px, 3.4vw, 40px);
  border-top: 1px solid var(--ac-line);
  scroll-margin-top: calc(var(--ac-header-h) + 24px);
}

.ac-reg-group + .ac-reg-group {
  margin-top: clamp(48px, 6vw, 72px);
}

.ac-reg-group__head {
  align-self: start;
  position: sticky;
  top: calc(var(--ac-header-h) + 32px);
}

.ac-reg-group__kicker {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ac-gold-text);
}

.ac-reg-group__title {
  margin-top: 8px;
  font-family: var(--ac-serif);
  font-size: clamp(2rem, 3.2vw, 2.7rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ac-rose);
}

.ac-reg-group__code {
  margin-top: 10px;
  font-size: 0.86rem;
  color: var(--ac-muted);
}

.ac-reg-group__back {
  display: inline-flex;
  gap: 8px;
  margin-top: 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ac-rose);
  text-decoration: none;
}

.ac-reg-group__back:hover {
  text-decoration: underline;
}

.ac-reg-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ac-reg-card {
  position: relative;
  height: 100%;
  padding: clamp(24px, 2.6vw, 32px);
  border: 1px solid var(--ac-line);
  border-radius: var(--ac-radius-sm);
  background: var(--ac-paper);
  transition:
    transform 0.45s var(--ac-ease),
    box-shadow 0.45s var(--ac-ease),
    border-color 0.45s var(--ac-ease);
}

.ac-reg-card:hover,
.ac-reg-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--ac-line-strong);
  box-shadow: var(--ac-shadow-paper);
}

.ac-reg-card__index {
  font-family: var(--ac-serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--ac-gold-text);
}

.ac-reg-card__title {
  margin-top: 14px;
  font-size: clamp(1.2rem, 1.6vw, 1.38rem);
  line-height: 1.25;
}

.ac-reg-card__title a {
  color: inherit;
  text-decoration: none;
}

/* El título es el enlace; su ::after cubre la tarjeta entera. */
.ac-reg-card__title a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.ac-reg-card__title a:focus-visible {
  outline: none;
}

.ac-reg-card:has(a:focus-visible) {
  outline: 2px solid var(--ac-rose);
  outline-offset: 4px;
}

.ac-reg-card__text {
  margin-top: 12px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.ac-reg-card__meta {
  margin-top: 18px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ac-rose);
}

/* 4. Calendario de vigencias --------------------------------------------- */
.ac-reg-calendar__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(48px, 7vw, 112px);
  align-items: start;
}

.ac-reg-calendar__head {
  position: sticky;
  top: calc(var(--ac-header-h) + 32px);
}

.ac-timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ac-timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 1px;
  background: linear-gradient(180deg, var(--ac-gold-light), rgba(217, 178, 106, 0.15));
}

.ac-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(130px, 0.32fr) minmax(0, 1fr);
  gap: 24px;
  padding: 0 0 clamp(36px, 4vw, 52px) 44px;
}

.ac-timeline__item:last-child {
  padding-bottom: 0;
}

/* Nodo: aro dorado; relleno cuando ya rige. */
.ac-timeline__item::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 15px;
  height: 15px;
  border: 1px solid var(--ac-gold-light);
  border-radius: 50%;
  background: var(--ac-plum);
}

.ac-timeline__item--vigente::before {
  background: var(--ac-gold-light);
}

.ac-timeline__date span {
  display: block;
  font-family: var(--ac-serif);
  font-size: clamp(2.6rem, 4vw, 3.4rem);
  line-height: 0.9;
  color: var(--ac-gold-light);
  font-variant-numeric: lining-nums;
}

.ac-timeline__date time {
  display: block;
  margin-top: 8px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ac-text-muted);
}

.ac-timeline__kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ac-rose-soft);
}

.ac-timeline__title {
  margin-top: 8px;
  font-family: var(--ac-serif);
  font-size: clamp(1.2rem, 1.8vw, 1.45rem);
  line-height: 1.25;
}

.ac-timeline__title a {
  color: var(--ac-paper);
  text-decoration: none;
}

.ac-timeline__title a:hover {
  text-decoration: underline;
  text-decoration-color: var(--ac-gold-light);
  text-underline-offset: 4px;
}

.ac-timeline__note {
  margin: 10px 0 14px;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Hoy: una línea dorada que corta el calendario. */
.ac-timeline__item--today {
  display: block;
}

.ac-timeline__item--today::before {
  border-color: var(--ac-rose-soft);
  background: var(--ac-rose-soft);
  box-shadow: 0 0 0 6px rgba(230, 179, 203, 0.16);
  animation: ac-reg-pulse 2.6s var(--ac-ease) infinite;
}

.ac-timeline__item--today .ac-timeline__date {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.ac-timeline__item--today .ac-timeline__date span {
  font-size: 1.6rem;
  font-style: italic;
  color: var(--ac-rose-soft);
}

.ac-timeline__item--today .ac-timeline__date time {
  margin: 0;
}

@keyframes ac-reg-pulse {
  0%, 100% { box-shadow: 0 0 0 6px rgba(230, 179, 203, 0.16); }
  50% { box-shadow: 0 0 0 12px rgba(230, 179, 203, 0); }
}

/* 5. Método --------------------------------------------------------------- */
.ac-reg-method__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 56px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.ac-reg-method__list li {
  padding-top: 24px;
  border-top: 1px solid var(--ac-line-strong);
}

.ac-reg-method__num {
  font-family: var(--ac-serif);
  font-size: 2rem;
  font-style: italic;
  line-height: 1;
  color: var(--ac-gold-text);
}

.ac-reg-method__list h3 {
  margin-top: 18px;
  font-size: clamp(1.3rem, 1.9vw, 1.55rem);
  line-height: 1.2;
}

.ac-reg-method__list p:last-child {
  margin-top: 12px;
  line-height: 1.65;
}

.ac-reg-method__sign {
  margin-top: clamp(40px, 5vw, 56px);
  font-family: var(--ac-serif);
  font-style: italic;
  color: var(--ac-muted);
}

.ac-reg-method__sign a {
  color: var(--ac-rose);
}

/* 6. Etiquetas compartidas ------------------------------------------------ */
.ac-reg-code {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid var(--ac-line-strong);
  border-radius: var(--ac-radius-sm);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ac-rose);
  font-variant-numeric: tabular-nums;
}

.ac-reg-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  padding: 0 12px;
  border-radius: var(--ac-radius-sm);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.ac-reg-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.ac-reg-status--por-entrar {
  background: rgba(184, 137, 62, 0.14);
  color: var(--ac-gold-text);
}

.ac-reg-status--vigente {
  background: var(--ac-rose);
  color: var(--ac-paper);
}

.ac-reg-status--sin-fecha {
  border: 1px solid var(--ac-line-strong);
  color: var(--ac-muted);
}

.ac-reg-calendar .ac-reg-status--por-entrar {
  background: rgba(217, 178, 106, 0.16);
  color: var(--ac-gold-light);
}

.ac-reg-calendar .ac-reg-status--vigente {
  background: var(--ac-rose-soft);
  color: var(--ac-plum);
}

/* 7. Móvil y tablet --------------------------------------------------------
   El lector llega con prisa y desde el teléfono. Debajo de 980 px la portada
   se reduce a título + la fecha clave (.ac-reg-now); la cabecera decorativa,
   las cifras y el texto largo se van. Unos atajos fijos (.ac-reg-jump) llevan
   a cada parte de un toque, y cada ficha termina en dos botones grandes. */

/* Solo existen en móvil y tablet. */
.ac-reg-now,
.ac-reg-jump {
  display: none;
}

@media (max-width: 1080px) {
  .ac-reg-entry {
    grid-template-columns: minmax(130px, 0.22fr) minmax(0, 1fr);
  }

  /* Los dos botones pasan debajo del texto, uno al lado del otro. */
  .ac-reg-entry__actions {
    grid-column: 2;
    grid-template-columns: repeat(2, minmax(0, 200px));
    width: auto;
    padding-top: 0;
  }
}

@media (max-width: 980px) {
  /* Portada compacta: nada que haga bajar antes de llegar a la información. */
  .ac-reg-hero {
    padding: calc(var(--ac-header-h) + 24px) 0 28px;
  }

  .ac-reg-hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .ac-reg-hero__crumbs {
    margin-bottom: 14px;
  }

  .ac-reg-hero .ac-eyebrow {
    margin-bottom: 12px;
  }

  .ac-reg-hero__title {
    max-width: 22ch;
    font-size: clamp(1.9rem, 5.4vw, 2.6rem);
    line-height: 1.05;
  }

  .ac-reg-hero__lead,
  .ac-reg-hero__actions,
  .ac-reg-stats,
  .ac-masthead {
    display: none;
  }

  /* La fecha clave: una tarjeta crema que se toca entera. */
  .ac-reg-now {
    position: relative;
    display: grid;
    gap: 6px;
    margin-top: 22px;
    padding: 18px 20px;
    border-left: 3px solid var(--ac-gold-light);
    border-radius: var(--ac-radius-sm);
    background: var(--ac-white);
    color: var(--ac-rose-ink);
    text-decoration: none;
    box-shadow: 0 18px 36px -22px rgba(0, 0, 0, 0.6);
  }

  .ac-reg-now:active {
    transform: scale(0.99);
  }

  .ac-reg-now__kicker {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ac-gold-text);
  }

  .ac-reg-now__date {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px 12px;
    font-family: var(--ac-serif);
    font-size: 1.85rem;
    line-height: 1.05;
    color: var(--ac-rose);
  }

  .ac-reg-now__days {
    font-family: var(--ac-sans);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--ac-gold-text);
  }

  .ac-reg-now__what {
    font-size: 0.95rem;
    line-height: 1.45;
  }

  .ac-reg-now__go {
    margin-top: 4px;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--ac-rose);
  }

  /* Atajos fijos bajo el header (que en móvil mide 68 px fijos). */
  .ac-reg-jump {
    position: sticky;
    top: var(--ac-header-h);
    z-index: 20;
    display: flex;
    gap: 8px;
    padding: 10px var(--ac-gutter);
    background: rgba(247, 242, 232, 0.96);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 var(--ac-line), 0 12px 24px -20px rgba(42, 15, 30, 0.5);
  }

  /* Un solo control segmentado: tres partes iguales dentro de un marco. */
  .ac-reg-jump {
    gap: 0;
  }

  .ac-reg-jump a {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border: 1px solid var(--ac-rose);
    background: var(--ac-white);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--ac-rose);
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
  }

  .ac-reg-jump a + a {
    border-left: 0;
  }

  .ac-reg-jump a:first-child {
    border-radius: var(--ac-radius) 0 0 var(--ac-radius);
  }

  .ac-reg-jump a:last-child {
    border-radius: 0 var(--ac-radius) var(--ac-radius) 0;
  }

  .ac-reg-jump a:only-child {
    border-radius: var(--ac-radius);
  }

  .ac-reg-jump a:active,
  .ac-reg-jump a:focus-visible {
    outline: none;
    background: var(--ac-rose);
    color: var(--ac-paper);
  }

  /* Las anclas tienen que quedar debajo del header + los atajos. */
  .ac-reg-section,
  .ac-reg-topics,
  .ac-reg-calendar,
  .ac-reg-entry,
  .ac-reg-group {
    scroll-margin-top: calc(var(--ac-header-h) + 72px);
  }

  /* Menos aire entre secciones: el contenido es lo que cuenta. */
  .ac-reg-section,
  .ac-reg-topics,
  .ac-reg-calendar,
  .ac-reg-method {
    padding-block: clamp(36px, 7vw, 64px);
  }

  .ac-reg-section .ac-page-section-head,
  .ac-reg-topics .ac-page-section-head,
  .ac-reg-method .ac-page-section-head,
  .ac-reg-calendar__head {
    margin-bottom: 24px;
  }

  .ac-reg-section .ac-section-title,
  .ac-reg-topics .ac-section-title,
  .ac-reg-calendar .ac-section-title,
  .ac-reg-method .ac-section-title {
    font-size: clamp(1.6rem, 4.6vw, 2.2rem);
  }

  .ac-reg-section .ac-section-intro,
  .ac-reg-topics .ac-section-intro,
  .ac-reg-calendar .ac-section-intro {
    margin-top: 10px;
    font-size: 0.98rem;
  }

  .ac-reg-section .ac-eyebrow,
  .ac-reg-topics .ac-eyebrow,
  .ac-reg-calendar .ac-eyebrow,
  .ac-reg-method .ac-eyebrow {
    margin-bottom: 10px;
  }

  /* Fichas del registro: tarjetas de una sola lectura. En tablet, dos por fila. */
  .ac-reg-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .ac-reg-list > li {
    display: flex;
  }

  .ac-reg-entry {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    padding: 20px;
    border: 1px solid var(--ac-line);
    border-radius: var(--ac-radius-sm);
    background: var(--ac-white);
    box-shadow: 0 14px 30px -26px rgba(94, 27, 62, 0.5);
  }

  .ac-reg-entry::before {
    display: none;
  }

  .ac-reg-entry__folio {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 2px 10px;
    width: 100%;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--ac-line);
  }

  .ac-reg-entry__no {
    flex-basis: 100%;
    font-size: 0.64rem;
  }

  .ac-reg-entry__number {
    font-size: 2rem;
  }

  .ac-reg-entry__date {
    margin: 0;
    font-size: 0.82rem;
  }

  .ac-reg-entry__body {
    flex: 1;
    padding-top: 14px;
  }

  .ac-reg-entry__tags {
    margin-bottom: 10px;
  }

  .ac-reg-entry__title {
    font-size: 1.22rem;
    line-height: 1.25;
  }

  .ac-reg-entry__summary {
    display: -webkit-box;
    margin-top: 10px;
    overflow: hidden;
    font-size: 0.95rem;
    line-height: 1.55;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
  }

  /* El dato que importa, en grande; el resto, fuera. */
  .ac-reg-entry__facts {
    margin-top: 14px;
    font-size: 0.92rem;
    color: var(--ac-rose-ink);
  }

  .ac-reg-entry__topics {
    flex-basis: 100%;
  }

  /* Dos botones del mismo tamaño, lado a lado, al alcance del pulgar. */
  .ac-reg-entry__actions {
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    width: 100%;
    gap: 10px;
    margin-top: 18px;
  }

  .ac-reg-btn {
    min-height: 52px;
    padding: 0 12px;
  }

  /* Análisis: cabecera en una línea y tarjetas compactas. */
  .ac-reg-group {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    padding-top: 20px;
  }

  .ac-reg-group + .ac-reg-group {
    margin-top: 32px;
  }

  .ac-reg-group__head {
    position: static;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px 12px;
  }

  .ac-reg-group__kicker {
    flex-basis: 100%;
  }

  .ac-reg-group__title {
    margin: 0;
    font-size: 1.6rem;
  }

  .ac-reg-group__code {
    margin: 0;
  }

  .ac-reg-group__back {
    margin: 0 0 0 auto;
  }

  .ac-reg-cards {
    gap: 12px;
  }

  .ac-reg-card {
    padding: 18px 20px;
  }

  .ac-reg-card:hover {
    transform: none;
  }

  .ac-reg-card__index {
    display: none;
  }

  .ac-reg-card__title {
    margin-top: 0;
    font-size: 1.12rem;
  }

  .ac-reg-card__text {
    font-size: 0.92rem;
  }

  .ac-reg-card__meta {
    margin-top: 10px;
  }

  /* Calendario: una fila por fecha, sin texto de relleno. */
  .ac-reg-calendar__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .ac-reg-calendar__head {
    position: static;
  }

  .ac-timeline__item {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 16px;
    padding: 0 0 26px 30px;
  }

  .ac-timeline__item::before {
    top: 6px;
  }

  .ac-timeline__date span {
    font-size: 2.2rem;
  }

  .ac-timeline__date time {
    font-size: 0.72rem;
  }

  .ac-timeline__title {
    font-size: 1.08rem;
  }

  .ac-timeline__note {
    margin: 8px 0 10px;
    font-size: 0.86rem;
  }

  .ac-timeline__body .ac-reg-status {
    margin-top: 10px;
  }

  .ac-timeline__item--today {
    padding-bottom: 22px;
  }

  .ac-timeline__item--today .ac-timeline__date span {
    font-size: 1.3rem;
  }

  /* Método: tres líneas cortas, sin columnas. */
  .ac-reg-method__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .ac-reg-method__list li {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    column-gap: 12px;
    padding-top: 16px;
  }

  .ac-reg-method__num {
    grid-row: span 2;
    font-size: 1.4rem;
  }

  .ac-reg-method__list h3 {
    margin-top: 0;
    font-size: 1.15rem;
  }

  .ac-reg-method__list p:last-child {
    margin-top: 6px;
    font-size: 0.94rem;
  }

  .ac-reg-method__sign {
    margin-top: 24px;
  }
}

@media (max-width: 800px) {
  /* Una ficha por fila conserva espacio real para leer en tablet estrecha. */
  .ac-reg-list,
  .ac-reg-cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .ac-reg-quarter__label {
    font-size: 1.15rem;
  }

  .ac-reg-entry__actions {
    gap: 8px;
  }

  .ac-reg-btn {
    min-width: 0;
    padding-inline: 8px;
    gap: 6px;
    font-size: 0.88rem;
  }
}

@media (max-width: 380px) {
  .ac-reg-jump {
    padding-inline: 12px;
  }

  .ac-reg-jump a {
    font-size: 0.84rem;
  }

  .ac-reg-entry {
    padding: 16px;
  }

  .ac-timeline__item {
    grid-template-columns: 76px minmax(0, 1fr);
  }
}

/* 8. Movimiento ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  .ac-timeline__item--today::before {
    animation: none;
  }

  .ac-reg-entry::before,
  .ac-reg-card {
    transition: none;
  }
}