/* ==========================================================================
   LAYOUT · barra fija (C01), símbolo (C02), índice (C03) y panel móvil (C04)
   ========================================================================== */

/* Cápsula flotante, como la barra de alextoll.store: separada del borde,
   cristal claro con desenfoque, borde fino y sombra suave. */
.bar {
  position: fixed;
  inset: calc(var(--bar-top) + env(safe-area-inset-top)) 0 auto;
  z-index: var(--z-bar);
  padding-inline: max(var(--gutter), env(safe-area-inset-left)) max(var(--gutter), env(safe-area-inset-right));
  pointer-events: none;
}

.bar__inner {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  max-width: var(--container);
  height: var(--bar-h);
  margin-inline: auto;
  padding: 0 0.5rem 0 1.1rem;
  border-radius: var(--radius-pill);
  /* Cápsula de alextoll.store con el cristal oscuro del modelo (#000000f2 + blur 25px). */
  background: rgb(0 0 0 / 0.55);
  /* 14 px: sobre fondo casi negro no se distingue de 25 px y cuesta mucho menos. */
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: var(--line) solid var(--c-line);
  box-shadow: 0 1px 0 rgb(255 255 255 / 0.05) inset;
  transition: background-color 300ms var(--ease-out), box-shadow 300ms var(--ease-out);
}

/* Con contenido detrás, la cápsula se vuelve más opaca para leerse bien. */
.bar.is-scrolled .bar__inner {
  background: rgb(0 0 0 / 0.82);
}

.bar__symbol {
  display: inline-grid;
  place-items: center;
  width: var(--tap);
  height: var(--tap);
  margin-left: calc(-1 * var(--sp-3));
  border-radius: var(--radius-pill);
  color: var(--c-heading);
  transition: color var(--t-pop) var(--ease-out), background-color var(--t-pop) var(--ease-out);
}

.bar__symbol[aria-expanded="true"] {
  color: var(--c-violet-glow);
  background: rgb(255 255 255 / 0.08);
}

@media (hover: hover) {
  .bar__symbol:hover {
    color: var(--c-violet-glow);
  }
}

/* Identidad compacta: destino del nombre de portada (A02). */
.bar__name {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--c-heading);
  text-decoration: none;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
}

.bar__name.is-shown {
  opacity: 1;
  visibility: visible;
}

/* Contador de sección (transitions.js): «03 · Alextoll». Ancho fijo para que
   la navegación no se mueva al cambiar el nombre. */
.bar__count {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex: none;
  width: 18.5ch; /* cabe «02 — Más sobre mí», el más largo */
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  line-height: 1;
  color: var(--c-text-2);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 400ms var(--ease-out), transform 500ms var(--ease-silk);
}

.bar__count.is-shown {
  opacity: 1;
  transform: none;
}

.count__num {
  display: inline-flex;
  color: var(--c-violet-glow);
  font-variant-numeric: tabular-nums;
}

/* Cada dígito es una columna 0–9 que rueda (cuentakilómetros). */
.count__digit {
  display: inline-block;
  height: 1em;
  overflow: hidden;
}

.count__col {
  display: flex;
  flex-direction: column;
  transition: transform 900ms var(--ease-silk);
}

.count__col > span {
  height: 1em;
  line-height: 1;
}

.count__sep {
  width: 0.75rem;
  height: var(--line);
  background: var(--c-line-strong);
}

/* El nombre entra por abajo y el anterior sale por arriba (superpuestos). */
.count__label {
  display: inline-grid;
  overflow: hidden;
  padding-block: 0.2em;
  margin-block: -0.2em;
}

.count__label > span {
  grid-area: 1 / 1;
}

/* Entre 820 y 1099 px solo cabe el número; en móvil, el número si hay sitio. */
@media (max-width: 1099px) {
  .bar__count {
    width: auto;
  }
  .count__sep,
  .count__label {
    display: none;
  }
}

@media (max-width: 419px) {
  .bar__count {
    display: none;
  }
}

.bar__nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.bar__links {
  display: flex;
  gap: 2px;
}

/* Enlaces en píldora: fondo al pasar y al estar en su sección (no solo color). */
.bar__link {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  padding: 0 1rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--c-text);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 200ms var(--ease-out), color 200ms var(--ease-out);
}

@media (hover: hover) {
  .bar__link:hover {
    color: var(--c-heading);
    background: rgb(255 255 255 / 0.06);
  }
}

.bar__link[aria-current="true"] {
  color: var(--c-heading);
  background: rgb(255 255 255 / 0.1);
}

/* Selector de fondo: botón redondo junto a «Contacto» (bg-picker.js). */
.bar__bg {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: var(--tap);
  height: var(--tap);
  margin-right: calc(-1 * var(--sp-2));
  border-radius: var(--radius-pill);
  color: var(--c-text);
  transition: color var(--t-pop) var(--ease-out), background-color var(--t-pop) var(--ease-out);
}

.bar__bg[hidden] {
  display: none;
}

.bar__bg[aria-expanded="true"] {
  color: var(--c-violet-glow);
  background: rgb(255 255 255 / 0.08);
}

@media (hover: hover) {
  .bar__bg:hover {
    color: var(--c-violet-glow);
    background: rgb(255 255 255 / 0.06);
  }
}

/* Tarjeta con las tres opciones, bajo su botón (posición fijada en JS). */
.bg-pop {
  position: fixed;
  z-index: var(--z-pop);
  width: 15.5rem;
  padding: var(--sp-3);
  border-radius: 1.25rem;
  border: var(--line) solid var(--c-line);
  -webkit-backdrop-filter: blur(25px);
  backdrop-filter: blur(25px);
  background: rgb(0 0 0 / 0.9);
}

.bg-pop__title {
  margin: 0 0 var(--sp-2);
  padding-inline: var(--sp-2);
  font-size: var(--fs-xs);
  color: var(--c-text-2);
}

.bg-list {
  display: grid;
  gap: 2px;
}

.bg-opt {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  width: 100%;
  min-height: var(--tap);
  padding: var(--sp-2);
  border-radius: 0.75rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text);
  text-align: left;
  transition: background-color 150ms var(--ease-out), color 150ms var(--ease-out);
}

/* Marca de la opción activa: color y una señal (no solo color). */
.bg-opt[aria-pressed="true"] {
  color: var(--c-heading);
  background: rgb(255 255 255 / 0.08);
}

.bg-opt[aria-pressed="true"]::after {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  margin-left: auto;
  margin-right: var(--sp-2);
  border-radius: 50%;
  background: var(--c-violet-glow);
  box-shadow: 0 0 10px var(--c-violet);
}

@media (hover: hover) {
  .bg-opt:hover {
    background: rgb(255 255 255 / 0.06);
  }
}

/* Miniaturas: una pista de cada fondo hecha solo con CSS. */
.bg-thumb {
  position: relative;
  flex: none;
  width: 3.25rem;
  height: 2.25rem;
  overflow: hidden;
  border-radius: 0.5rem;
  border: var(--line) solid var(--c-line);
  background: #000;
  transition: border-color 150ms var(--ease-out);
}

.bg-opt[aria-pressed="true"] .bg-thumb {
  border-color: var(--c-violet);
}

.bg-thumb--foco {
  background:
    radial-gradient(circle at 66% 62%, rgb(255 255 255 / 0.55) 0 2px, transparent 3px),
    radial-gradient(ellipse 45% 85% at 66% 0%, rgb(255 255 255 / 0.3), transparent 75%),
    radial-gradient(ellipse 40% 12% at 66% 82%, rgb(186 167 255 / 0.25), transparent 80%),
    #000;
}

.bg-thumb--reticula::before {
  content: "";
  position: absolute;
  inset: 40% -60% -40%;
  background:
    repeating-linear-gradient(90deg, rgb(255 255 255 / 0.28) 0 1px, transparent 1px 7px),
    repeating-linear-gradient(0deg, rgb(255 255 255 / 0.28) 0 1px, transparent 1px 6px);
  transform: perspective(30px) rotateX(48deg);
  transform-origin: 50% 0;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 45%);
  mask-image: linear-gradient(to bottom, transparent, #000 45%);
}

.bg-thumb--ascii::before {
  content: ".:-=+*#=-:.:-=\A :=+*##*+=:.-=\A-=*#%#*=-:.:-\A :=+*#*+=:..:=";
  position: absolute;
  inset: 1px 2px;
  font: 600 6.5px/1.35 var(--font-mono);
  white-space: pre;
  letter-spacing: 0.04em;
  color: var(--c-violet);
}

.bar__contact {
  min-height: 2.75rem;
  padding-inline: 1.3rem;
  border-radius: var(--radius-pill); /* casa con la cápsula */
}

.bar__menu {
  display: none;
  align-items: center;
  gap: var(--sp-2);
  min-height: var(--tap);
  margin-left: auto;
  padding-inline: 1rem;
  border-radius: var(--radius-pill);
  border: var(--line) solid var(--c-line);
  font-size: var(--fs-sm);
  font-weight: 500;
}

.bar__menu-icon {
  position: relative;
  width: 18px;
  height: 10px;
  border-block: 1.5px solid currentColor;
}

@media (max-width: 819px) {
  .bar__nav,
  .bar__contact,
  .bar__bg {
    display: none;
  }
  .bar__menu {
    display: inline-flex;
  }
  .bar__inner {
    gap: var(--sp-3);
    padding: 0 0.4rem 0 1rem;
  }
  .bar__name {
    font-size: 1rem;
  }
}

/* --- C03 · Índice compacto anclado al símbolo (A15) --- */
.index-pop {
  position: fixed;
  top: calc(env(safe-area-inset-top) + var(--bar-top) + var(--bar-h) + var(--sp-2));
  left: max(calc((100vw - var(--container)) / 2), var(--gutter));
  border-radius: 1.25rem;
  z-index: var(--z-pop);
  min-width: 15rem;
  padding: var(--sp-2);
  background: var(--c-surface);
  border: var(--line) solid var(--c-line);
  -webkit-backdrop-filter: blur(25px);
  backdrop-filter: blur(25px);
  background: rgb(0 0 0 / 0.9);
}

.index-list a,
.side-panel__list a {
  display: flex;
  align-items: baseline;
  gap: var(--sp-4);
  min-height: var(--tap);
  padding: var(--sp-2) var(--sp-3);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-ui);
}

.index-list a span,
.side-panel__list a span {
  font-size: var(--fs-xs);
  color: var(--c-text-2);
  font-variant-numeric: tabular-nums;
}

.index-list a[aria-current="true"],
.side-panel__list a[aria-current="true"] {
  color: var(--c-violet-glow);
}

.index-list a[aria-current="true"]::after,
.side-panel__list a[aria-current="true"]::after {
  content: "· aquí";
  margin-left: auto;
  font-size: var(--fs-xs);
}

@media (hover: hover) {
  .index-list a:hover,
  .side-panel__list a:hover {
    background: rgb(255 255 255 / 0.06);
  }
}

/* --- C04 · Panel lateral móvil (A16) --- */
.side-panel {
  margin: 0 0 0 auto;
  width: min(22rem, 86vw);
  max-width: 100vw;
  height: 100dvh;
  max-height: 100dvh;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--c-text);
  overflow: visible;
}

.side-panel::backdrop {
  background: rgb(0 0 0 / 0.6);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.side-panel__sheet {
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: calc(env(safe-area-inset-top) + var(--sp-3)) max(var(--sp-5), env(safe-area-inset-right)) calc(env(safe-area-inset-bottom) + var(--sp-6)) var(--sp-5);
  background: var(--c-surface);
  border-left: var(--line) solid var(--c-line);
}

.side-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-5);
}

/* Selector de fondo en el panel móvil. */
.side-panel__bg {
  margin-top: var(--sp-6);
}

.side-panel__bg[hidden] {
  display: none;
}

.side-panel__list a {
  font-size: 1.375rem;
  border-bottom: var(--line) solid var(--c-line-soft);
  border-radius: 0;
  padding-block: var(--sp-4);
}

/* --- Secciones --- */
main {
  display: block;
}

main > section,
.journey > section {
  position: relative;
}

/* El nombre compacto repite el contraste de peso de la portada. */
.bar__name [data-bar-word] + [data-bar-word] {
  font-weight: 300;
}