/* ==========================================================================
   136 — Value Ticker
   Valeur en temps réel façon ticker boursier. Le nombre est découpé en
   cellules (1 caractère, overflow masqué) : seuls les caractères qui
   changent glissent — l'ancien sort, le nouveau entre, dans le sens de la
   variation (hausse : le nouveau monte du bas ; baisse : il descend du
   haut). Flash de couleur sémantique sur la valeur, flèche ▲/▼ et ligne de
   delta colorées. Les cellules et séparateurs entrent/sortent quand le
   nombre change de longueur. Cellules et glyphes générés par anim.js.
   Racine : .value-ticker (js: true).
   ========================================================================== */

.value-ticker {
  --vt-up: var(--ml-up, #34d399);
  --vt-down: var(--ml-down, #f87171);

  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--ml-fg, #e8eaf2);
}

.value-ticker__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ml-muted, #8b91a3);
}

.value-ticker__row {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* --- Flèche de direction ------------------------------------------------------ */

.value-ticker__arrow {
  width: 16px;
  font-size: 14px;
  line-height: 1;
  text-align: center;
  opacity: 0; /* invisible tant qu'aucune variation n'a eu lieu */
  transform: translateY(20%);
  transition:
    opacity 240ms ease,
    transform 240ms cubic-bezier(0.3, 1.3, 0.5, 1),
    color 240ms ease;
}

.value-ticker.is-up .value-ticker__arrow,
.value-ticker.is-down .value-ticker__arrow {
  opacity: 1;
  transform: none;
}

.value-ticker.is-up .value-ticker__arrow { color: var(--vt-up); }
.value-ticker.is-down .value-ticker__arrow { color: var(--vt-down); }

/* --- Valeur ------------------------------------------------------------------- */

.value-ticker__value {
  display: flex;
  height: 1em;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
}

/* flash sémantique : part de la couleur de direction, revient au fg */
.value-ticker.is-up .value-ticker__value {
  animation: value-ticker-flash-up 850ms ease-out both;
}

.value-ticker.is-down .value-ticker__value {
  animation: value-ticker-flash-down 850ms ease-out both;
}

@keyframes value-ticker-flash-up {
  from {
    color: var(--vt-up);
    text-shadow: 0 0 22px color-mix(in srgb, var(--vt-up) 55%, transparent);
  }
}

@keyframes value-ticker-flash-down {
  from {
    color: var(--vt-down);
    text-shadow: 0 0 22px color-mix(in srgb, var(--vt-down) 55%, transparent);
  }
}

/* --- Cellules / glyphes ------------------------------------------------------- */

.value-ticker__cell {
  position: relative;
  width: 1ch;
  height: 1em;
  overflow: hidden;
}

.value-ticker__cell--sep { width: 0.5ch; } /* espace fine des milliers */

.value-ticker__glyph {
  position: absolute;
  inset: 0;
  text-align: center;
  will-change: transform;
}

/* hausse : l'ancien glisse vers le haut, le nouveau monte du bas */
.value-ticker__glyph.is-in-up {
  animation: value-ticker-in-up 340ms cubic-bezier(0.25, 0.9, 0.3, 1) both;
}

.value-ticker__glyph.is-out-up {
  animation: value-ticker-out-up 340ms cubic-bezier(0.5, 0.05, 0.55, 0.95) both;
}

/* baisse : sens inverse */
.value-ticker__glyph.is-in-down {
  animation: value-ticker-in-down 340ms cubic-bezier(0.25, 0.9, 0.3, 1) both;
}

.value-ticker__glyph.is-out-down {
  animation: value-ticker-out-down 340ms cubic-bezier(0.5, 0.05, 0.55, 0.95) both;
}

@keyframes value-ticker-in-up   { from { transform: translateY(108%);  opacity: 0; } }
@keyframes value-ticker-out-up  { to   { transform: translateY(-108%); opacity: 0; } }
@keyframes value-ticker-in-down { from { transform: translateY(-108%); opacity: 0; } }
@keyframes value-ticker-out-down{ to   { transform: translateY(108%);  opacity: 0; } }

/* cellule qui apparaît/disparaît quand le nombre change de longueur
   (largeur animée : rare et très localisé) */
.value-ticker__cell.is-enter {
  animation: value-ticker-cell-in 380ms cubic-bezier(0.25, 0.9, 0.35, 1) both;
}

.value-ticker__cell.is-exit {
  animation: value-ticker-cell-out 300ms cubic-bezier(0.5, 0, 0.7, 0.4) both;
  pointer-events: none;
}

@keyframes value-ticker-cell-in  { from { width: 0; opacity: 0; } }
@keyframes value-ticker-cell-out { to   { width: 0; opacity: 0; } }

/* --- Unité + delta -------------------------------------------------------------- */

.value-ticker__unit {
  font-size: 19px;
  font-weight: 600;
  color: var(--ml-muted, #8b91a3);
}

.value-ticker__delta {
  min-height: 1em;
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--ml-muted, #8b91a3);
  transition: color 240ms ease;
}

.value-ticker.is-up .value-ticker__delta { color: var(--vt-up); }
.value-ticker.is-down .value-ticker__delta { color: var(--vt-down); }

/* --- Bouton pause / reprise ------------------------------------------------------ */

.value-ticker__btn {
  appearance: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 10px;
  color: var(--ml-accent, #7c8cff);
  background: color-mix(in srgb, var(--ml-accent, #7c8cff) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--ml-accent, #7c8cff) 35%, transparent);
  transition:
    transform 180ms cubic-bezier(0.3, 1.4, 0.5, 1),
    background 180ms ease,
    border-color 180ms ease;
}

.value-ticker__btn:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--ml-accent, #7c8cff) 20%, transparent);
  border-color: color-mix(in srgb, var(--ml-accent, #7c8cff) 55%, transparent);
}

.value-ticker__btn:active { transform: translateY(0) scale(0.97); }

.value-ticker__btn:focus-visible {
  outline: 2px solid var(--ml-accent, #7c8cff);
  outline-offset: 3px;
}

.value-ticker__ico {
  width: 12px;
  height: 12px;
  display: block;
}

.value-ticker__ico--play { display: none; }

.value-ticker__btn.is-paused .value-ticker__ico--pause { display: none; }
.value-ticker__btn.is-paused .value-ticker__ico--play { display: block; }

/* --- Reduced motion --------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .value-ticker.is-up .value-ticker__value,
  .value-ticker.is-down .value-ticker__value,
  .value-ticker__glyph.is-in-up,
  .value-ticker__glyph.is-in-down,
  .value-ticker__cell.is-enter,
  .value-ticker__cell.is-exit {
    animation: none;
  }

  /* la nouvelle valeur s'affiche directement, sans glissement */
  .value-ticker__glyph.is-out-up,
  .value-ticker__glyph.is-out-down,
  .value-ticker__cell.is-exit {
    display: none;
  }

  .value-ticker__arrow,
  .value-ticker__delta,
  .value-ticker__btn {
    transition: none;
  }
}