/* ============================================================
   VARTEX 14 — components.css
   Componentes: marquesina, botones, fotogramas, temas, tarjetas,
   acordeón, muestras, línea de tiempo y menú móvil.
   ============================================================ */

/* ---------- Marquesina editorial ---------- */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  padding: 1.5rem 0;
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent,
    #000 8%,
    #000 92%,
    transparent
  );
  mask-image: linear-gradient(
    90deg,
    transparent,
    #000 8%,
    #000 92%,
    transparent
  );
}

.marquee__track {
  display: flex;
  width: max-content;
  will-change: transform;
}

.marquee__group {
  display: flex;
  align-items: baseline;
  flex-shrink: 0;
}

.marquee__item {
  font-family: var(--font-sans);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.8rem, 4.5vw, 3.4rem);
  line-height: 1;
  color: var(--text);
  white-space: nowrap;
  padding-inline: 1.6rem;
}

.marquee__sep {
  font-family: var(--font-serif);
  color: var(--rose);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
}

/* ---------- Botones ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  padding: 1.05rem 2.4rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(17, 18, 20, 0.55);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  box-shadow: 0 18px 40px -24px rgba(0, 0, 0, 0.7);
  transition:
    color 0.55s var(--ease),
    border-color 0.55s var(--ease),
    transform 0.55s var(--ease),
    box-shadow 0.55s var(--ease);
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(120deg, var(--accent), var(--rose));
  opacity: 0;
  transition: opacity 0.55s var(--ease);
}

.btn > * {
  position: relative;
  z-index: 1;
}

.btn:hover,
.btn:focus-visible {
  color: #111214;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 26px 50px -24px rgba(254, 140, 7, 0.55);
}

.btn:hover::before,
.btn:focus-visible::before {
  opacity: 1;
}

.btn--accent {
  border-color: transparent;
  background: linear-gradient(120deg, var(--accent), var(--rose));
  color: #111214;
}

.btn--accent::before {
  background: linear-gradient(120deg, var(--rose), var(--accent));
}

.btn--accent:hover,
.btn--accent:focus-visible {
  color: #111214;
  box-shadow: 0 26px 60px -20px rgba(254, 140, 7, 0.6);
}

/* ---------- Fotogramas (imágenes representativas en CSS puro) ---------- */
.still {
  position: relative;
  aspect-ratio: 4 / 5;
  /* Radio asimétrico: esquinas superior-izquierda e inferior-derecha */
  border-radius: var(--radius-lg) 6px var(--radius-lg) 6px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.8);
  isolation: isolate;
}

.still--wide {
  aspect-ratio: 21 / 8;
  border-radius: var(--radius) 6px var(--radius) 6px;
  margin-bottom: clamp(3rem, 7vw, 5.5rem);
}

/* Textura base del fotograma: capas de gradiente + tejido */
.still::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(
      120% 90% at 20% 10%,
      rgba(57, 148, 229, 0.4),
      transparent 55%
    ),
    radial-gradient(
      120% 120% at 85% 90%,
      rgba(200, 105, 125, 0.42),
      transparent 60%
    ),
    radial-gradient(
      80% 60% at 70% 20%,
      rgba(254, 140, 7, 0.22),
      transparent 60%
    ),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.03) 0 2px,
      transparent 2px 6px
    ),
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.025) 0 2px,
      transparent 2px 6px
    ),
    var(--bg-alt);
}

.still--rose::before {
  background:
    radial-gradient(
      130% 100% at 15% 8%,
      rgba(200, 105, 125, 0.55),
      transparent 58%
    ),
    radial-gradient(
      120% 120% at 90% 95%,
      rgba(57, 148, 229, 0.3),
      transparent 60%
    ),
    radial-gradient(
      90% 70% at 60% 30%,
      rgba(254, 140, 7, 0.25),
      transparent 62%
    ),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.035) 0 2px,
      transparent 2px 7px
    ),
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.025) 0 2px,
      transparent 2px 7px
    ),
    #161318;
}

.still--blue::before {
  background:
    radial-gradient(
      140% 110% at 85% 10%,
      rgba(57, 148, 229, 0.55),
      transparent 60%
    ),
    radial-gradient(
      110% 130% at 10% 95%,
      rgba(200, 105, 125, 0.32),
      transparent 62%
    ),
    radial-gradient(
      70% 60% at 40% 40%,
      rgba(254, 140, 7, 0.18),
      transparent 60%
    ),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.03) 0 2px,
      transparent 2px 6px
    ),
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.03) 0 2px,
      transparent 2px 6px
    ),
    #11151d;
}

.still--accent::before {
  background:
    radial-gradient(
      120% 100% at 75% 15%,
      rgba(254, 140, 7, 0.5),
      transparent 58%
    ),
    radial-gradient(
      130% 110% at 15% 100%,
      rgba(200, 105, 125, 0.4),
      transparent 60%
    ),
    radial-gradient(
      80% 60% at 50% 40%,
      rgba(57, 148, 229, 0.25),
      transparent 60%
    ),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.03) 0 2px,
      transparent 2px 7px
    ),
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.025) 0 2px,
      transparent 2px 7px
    ),
    #16150f;
}

/* Perforaciones de película en el lateral */
.still__sprockets {
  position: absolute;
  top: 0;
  left: 0;
  width: 1.1rem;
  height: 100%;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 14px,
    rgba(0, 0, 0, 0.55) 14px 26px,
    transparent 26px 44px
  );
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

/* Marco interior del fotograma */
.still__frame {
  position: absolute;
  inset: 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: calc(var(--radius-lg) - 10px) 2px calc(var(--radius-lg) - 10px)
    2px;
}

.still--wide .still__frame {
  inset: 1.3rem;
}

/* Luz que atraviesa el fotograma (destello suave) */
.still::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(255, 255, 255, 0.06) 45%,
    transparent 60%
  );
  transform: translateX(-100%);
  animation: still-sheen 9s var(--ease) infinite;
  animation-delay: 1.5s;
}

.still__label {
  position: absolute;
  left: 1.1rem;
  bottom: 1.1rem;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: rgba(246, 244, 239, 0.75);
  background: rgba(17, 18, 20, 0.55);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ---------- Placa fotográfica (columna de imagen del taller) ---------- */
.plate {
  position: relative;
  margin-top: clamp(2rem, 6vh, 4.5rem);
}

/* Passe-partout: marco desplazado que asoma abajo y a la derecha */
.plate::before {
  content: "";
  position: absolute;
  inset: 1.6rem -1.6rem -1.6rem 1.6rem;
  z-index: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg) 6px var(--radius-lg) 6px;
  background: linear-gradient(
    140deg,
    rgba(57, 148, 229, 0.07),
    rgba(254, 140, 7, 0.05) 50%,
    rgba(200, 105, 125, 0.08)
  );
  pointer-events: none;
}

.plate__img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: left center;
  border-radius: var(--radius-lg) 6px var(--radius-lg) 6px;
  border: 1px solid var(--line-strong);
  box-shadow: 0 46px 90px -44px rgba(0, 0, 0, 0.85);
}

/* Destello que cruza la imagen al pasar el ratón */
.plate::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: inherit;
  background: linear-gradient(
    120deg,
    transparent 35%,
    rgba(255, 255, 255, 0.09) 50%,
    transparent 65%
  );
  transform: translateX(-110%);
  transition: transform 1.1s var(--ease);
  pointer-events: none;
}

.plate:hover::after {
  transform: translateX(110%);
}

/* Etiqueta de vidrio: número de figura + motivo de claqueta */
.plate__caption {
  position: absolute;
  left: 1.4rem;
  bottom: 1.4rem;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.6rem 1rem 0.6rem 0.7rem;
  background: rgba(17, 18, 20, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(246, 244, 239, 0.14);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-2);
}

.plate__mark {
  width: 0.9rem;
  height: 0.9rem;
  flex: none;
  border-radius: 2px;
  background: conic-gradient(
    from 90deg,
    var(--accent) 0 25%,
    var(--bg) 0 50%,
    var(--rose) 0 75%,
    var(--bg) 0
  );
  box-shadow: inset 0 0 0 1px rgba(246, 244, 239, 0.2);
}

.plate__num {
  color: var(--accent);
}

/* Anotación de borde tipo cinta de película */
.plate__edge {
  position: absolute;
  right: -2.1rem;
  top: 1.2rem;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-3);
}

.plate__edge::before {
  content: "";
  width: 1px;
  height: 2.6rem;
  background: linear-gradient(var(--accent), transparent);
}

.plate__edge span {
  writing-mode: vertical-rl;
}

/* ---------- Temas del curso (interacción de puntada) ---------- */
.topics {
  border-top: 1px solid var(--line-strong);
}

.topic {
  position: relative;
  display: grid;
  grid-template-columns: clamp(3rem, 5vw, 4.5rem) 1fr auto;
  align-items: center;
  gap: clamp(1.2rem, 3vw, 2.5rem);
  padding: clamp(1.7rem, 3.5vw, 2.6rem) 0;
}

.topic__num {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  color: var(--text-3);
  transition:
    color 0.5s var(--ease),
    transform 0.5s var(--ease);
}

.topic__body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.topic__title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 400;
  line-height: 1.05;
  color: var(--text);
  transition:
    transform 0.6s var(--ease),
    color 0.5s var(--ease);
}

.topic__desc {
  font-size: var(--fs-small);
  color: var(--text-3);
  max-width: 46ch;
}

/* Muestra textil: botón que se abrocha (imagen del botón) */
.topic__swatch {
  width: clamp(2.6rem, 4vw, 3.2rem);
  height: clamp(2.6rem, 4vw, 3.2rem);
  object-fit: contain;
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.55));
  transition:
    transform 0.7s var(--ease),
    filter 0.7s var(--ease);
}

/* Línea de costura (guía punteada + hilo que cose) */
.topic__stitch {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: repeating-linear-gradient(
    90deg,
    transparent 0 5px,
    var(--line-strong) 5px 9px
  );
}

.topic__stitch-fill {
  position: absolute;
  left: 0;
  top: -1px;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--accent), var(--rose));
  box-shadow: 0 0 14px rgba(254, 140, 7, 0.6);
  transition: transform 0.9s var(--ease-slow);
}

/* Estado de interacción */
.topic:hover .topic__stitch-fill,
.topic:focus-within .topic__stitch-fill {
  transform: scaleX(1);
}

.topic:hover .topic__title,
.topic:focus-within .topic__title {
  color: var(--accent);
  transform: translateX(0.6rem);
}

.topic:hover .topic__num,
.topic:focus-within .topic__num {
  color: var(--accent);
}

.topic:hover .topic__swatch,
.topic:focus-within .topic__swatch {
  transform: rotate(-14deg) scale(1.1);
  filter: drop-shadow(0 0 16px rgba(254, 140, 7, 0.6));
}

/* ---------- Tarjetas de datos ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.card {
  position: relative;
  background: var(--bg-alt);
  padding: clamp(1.8rem, 3.5vw, 2.6rem);
  min-height: 12rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--rose));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease-slow);
}

.card:hover::before,
.card:focus-within::before {
  transform: scaleX(1);
}

.card__label {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
}

.card__value {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  line-height: 1;
  margin: 1.2rem 0 0.4rem;
}

.card__detail {
  color: var(--text-3);
  font-size: var(--fs-small);
}

.datos__cta {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  padding: clamp(1.6rem, 3vw, 2.4rem) clamp(1.6rem, 3vw, 2.8rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
}

.datos__cta p {
  max-width: 44ch;
  color: var(--text-2);
  font-size: var(--fs-small);
}

/* ---------- Acordeón de la muestra nacional ---------- */
.accordion {
  border-top: 1px solid var(--line-strong);
}

.acc__item {
  border-bottom: 1px solid var(--line);
}

.acc__head {
  margin: 0;
}

.acc__btn {
  width: 100%;
  display: grid;
  grid-template-columns: clamp(2.2rem, 3vw, 2.8rem) 1fr auto auto;
  align-items: center;
  gap: clamp(1.2rem, 3vw, 2.5rem);
  padding: clamp(1.4rem, 3vw, 2rem) 0;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  position: relative;
}

.acc__btn::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--rose));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease-slow);
}

.acc__btn:hover::after,
.acc__btn:focus-visible::after,
.acc__btn[aria-expanded="true"]::after {
  transform: scaleX(1);
}

.acc__num {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  color: var(--text-3);
  margin-right: clamp(-1.2rem, -2.4vw, -2rem);
  transition: color 0.5s var(--ease);
}

.acc__btn:hover .acc__num,
.acc__btn:focus-visible .acc__num {
  color: var(--accent);
}

.acc__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.25rem, 2.3vw, 1.7rem);
  line-height: 1.1;
  color: var(--text);
  transition:
    transform 0.6s var(--ease),
    color 0.5s var(--ease);
}

.acc__btn:hover .acc__title,
.acc__btn:focus-visible .acc__title {
  transform: translateX(0.6rem);
}

.acc__btn[aria-expanded="true"] .acc__title {
  color: var(--accent);
}

.acc__autor {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 1.15vw, 1.05rem);
  letter-spacing: 0.1em;
  color: var(--text-3);
  white-space: nowrap;
}

/* Botón de abrochado del acordeón (imagen del botón) */
.acc__fastener {
  width: clamp(2.1rem, 3vw, 2.5rem);
  height: clamp(2.1rem, 3vw, 2.5rem);
  object-fit: contain;
  filter: drop-shadow(0 8px 14px rgba(0, 0, 0, 0.5));
  transition:
    transform 0.7s var(--ease),
    filter 0.5s var(--ease);
}

.acc__btn:hover .acc__fastener,
.acc__btn:focus-visible .acc__fastener {
  transform: rotate(90deg);
  filter: drop-shadow(0 0 10px rgba(254, 140, 7, 0.55));
}

.acc__btn[aria-expanded="true"] .acc__fastener {
  transform: rotate(135deg);
  filter: drop-shadow(0 0 14px rgba(254, 140, 7, 0.75));
}

/* Panel */
.acc__panel {
  overflow: hidden;
  height: 0;
  visibility: hidden;
}

.acc__panel[data-open="true"] {
  visibility: visible;
}

.acc__inner {
  padding: 0 0 clamp(2.2rem, 4vw, 3rem) clamp(3rem, 8vw, 7rem);
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(1.8rem, 5vw, 5rem);
  align-items: start;
  border-top: 1px dashed var(--line);
  padding-top: clamp(1.6rem, 3vw, 2.4rem);
}

.acc__facts {
  display: grid;
  gap: 0.7rem;
}

.acc__facts > div {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
}

.acc__facts dt {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
}

.acc__facts dd {
  color: var(--text-2);
  font-size: var(--fs-small);
}

.acc__synopsis {
  font-family: var(--font-sans);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.15rem, 1.9vw, 1.5rem);
  line-height: 1.5;
  color: var(--text-2);
  max-width: 42ch;
}

/* ---------- Muestras ---------- */
.muestras {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.muestra {
  position: relative;
  background: var(--bg);
  padding: clamp(2rem, 4vw, 3.2rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 21rem;
  overflow: hidden;
}

.muestra::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: clamp(4rem, 8vw, 7rem);
  height: clamp(4rem, 8vw, 7rem);
  border-radius: 0 0 0 var(--radius);
  background: radial-gradient(
    circle at 30% 30%,
    rgba(254, 140, 7, 0.18),
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.7s var(--ease);
}

.muestra:hover::before {
  opacity: 1;
}

.muestra__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.muestra__tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.45rem 0.9rem;
  border: 1px solid rgba(254, 140, 7, 0.35);
  border-radius: 999px;
}

.muestra__num {
  font-family: var(--font-serif);
  font-weight: 700;
  font-style: normal;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--line-strong);
  transition: -webkit-text-stroke-color 0.6s var(--ease);
}

.muestra:hover .muestra__num {
  -webkit-text-stroke-color: var(--rose);
}

.muestra__title {
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  font-weight: 300;
}

.muestra__desc {
  color: var(--text-2);
  font-size: var(--fs-small);
  max-width: 40ch;
}

.muestra__date {
  margin-top: auto;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.1em;
  color: var(--text-3);
}

/* ---------- Línea de tiempo de ediciones ---------- */
.timeline {
  border-top: 1px solid var(--line-strong);
}

.timeline li {
  border-bottom: 1px solid var(--line);
}

.timeline a {
  display: grid;
  grid-template-columns: clamp(3.5rem, 6vw, 5rem) clamp(3.5rem, 6vw, 5rem) 1fr;
  align-items: baseline;
  gap: clamp(1rem, 3vw, 2rem);
  padding: clamp(1.2rem, 2.4vw, 1.7rem) 0;
  position: relative;
}

.timeline a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--rose));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease-slow);
}

.timeline a:hover::after,
.timeline a:focus-visible::after {
  transform: scaleX(1);
}

.timeline__year {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.12em;
  color: var(--text-3);
}

.timeline__num {
  font-family: var(--font-sans);
  font-style: italic;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--rose);
}

.timeline__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.6vw, 2rem);
  color: var(--text);
  transition:
    color 0.5s var(--ease),
    transform 0.6s var(--ease);
}

.timeline a:hover .timeline__title,
.timeline a:focus-visible .timeline__title {
  color: var(--accent);
  transform: translateX(0.6rem);
}

/* ---------- Menú móvil (overlay) ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 85;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 1rem) var(--shell-pad) 2.5rem;
  background: rgba(15, 16, 18, 0.9);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  clip-path: inset(0 0 100% 0);
  transition:
    clip-path 0.8s var(--ease),
    opacity 0.5s var(--ease),
    visibility 0.8s;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  clip-path: inset(0 0 0% 0);
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.mobile-menu__list a {
  display: inline-block;
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2rem, 8vw, 3.4rem);
  line-height: 1.15;
  color: var(--text);
  opacity: 0;
  transform: translateY(2rem);
  transition: color 0.4s var(--ease);
}

.mobile-menu.is-open .mobile-menu__list a {
  animation: menu-item-in 0.8s var(--ease) forwards;
  animation-delay: calc(0.08s + var(--i, 0) * 0.06s);
}

.mobile-menu__list a:hover,
.mobile-menu__list a:focus-visible {
  color: var(--accent);
}

.mobile-menu__footer {
  margin-top: clamp(2rem, 5vh, 3.5rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.4rem;
  border-top: 1px solid var(--line);
  padding-top: 1.8rem;
}

.mobile-menu__social {
  display: flex;
  gap: 0.9rem;
}

.mobile-menu__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.7rem;
  height: 2.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--text-2);
  transition:
    color 0.4s var(--ease),
    border-color 0.4s var(--ease);
}

.mobile-menu__social a:hover,
.mobile-menu__social a:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

.mobile-menu__contact a {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.1em;
  color: var(--text-3);
}

/* ---------- Tipos de SplitType: máscara de línea ---------- */
.js .js-split {
  font-kerning: none;
}

.js .js-split .line {
  display: block;
  overflow: hidden;
}

.js .js-split .char {
  display: inline-block;
  will-change: transform;
}