/* ==========================================================================
   163 — Sparkline KPI Cards
   Rangée de KPI cards : chaque card entre en fondu/rise avec stagger, sa
   sparkline (SVG généré par anim.js) se trace rapidement en stroke-
   dashoffset (transition inline, décalée entre cards), puis le delta
   glisse en fondu avec sa couleur sémantique — vert hausse / rouge baisse,
   surchargeable — et le dernier point pulse en continu.
   Racine : .sparkline (js: true).
   ========================================================================== */

.sparkline {
  --sl-accent: var(--ml-accent, #7c8cff);
  --sl-accent-2: var(--ml-accent-2, #2dd4bf);
  --sl-muted: var(--ml-muted, #8b91a3);
  /* couleurs sémantiques des deltas — surchargeables */
  --sparkline-up: var(--ml-up, #34d399);
  --sparkline-down: var(--ml-down, #fb7185);

  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 340px;
  color: var(--ml-fg, #e8eaf2);
}

.sparkline__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sparkline__title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sl-muted);
}

.sparkline__row {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

/* --- Card ----------------------------------------------------------------- */

.sparkline__card {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 11px 12px 9px;
  border-radius: 12px;
  background: var(--ml-surface, #151a24);
  border: 1px solid color-mix(in srgb, var(--sl-muted) 14%, transparent);
  transition:
    opacity 480ms ease,
    transform 480ms cubic-bezier(0.2, 0.8, 0.25, 1);
}

/* .is-armed est posé par anim.js à l'init (hors reduced-motion) */
.sparkline.is-armed .sparkline__card {
  opacity: 0;
  transform: translateY(10px);
}

.sparkline .sparkline__card.is-in {
  opacity: 1;
  transform: none;
}

.sparkline__label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sl-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sparkline__value {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* --- Delta sémantique --------------------------------------------------------- */

.sparkline__delta {
  align-self: flex-start;
  font-size: 10.5px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding: 1px 6px;
  border-radius: 999px;
  opacity: 0;
  transform: translateY(5px);
  transition:
    opacity 300ms ease,
    transform 340ms cubic-bezier(0.3, 1.4, 0.5, 1);
}

.sparkline__delta.is-in {
  opacity: 1;
  transform: none;
}

.sparkline__card.is-up .sparkline__delta {
  color: var(--sparkline-up);
  background: color-mix(in srgb, var(--sparkline-up) 12%, transparent);
}

.sparkline__card.is-down .sparkline__delta {
  color: var(--sparkline-down);
  background: color-mix(in srgb, var(--sparkline-down) 12%, transparent);
}

/* --- Sparkline SVG (contenu généré par anim.js) --------------------------------- */

.sparkline__svg {
  display: block;
  width: 100%;
  height: 30px;
  margin-top: 3px;
  overflow: visible;
}

.sparkline__path {
  fill: none;
  stroke: var(--sl-accent);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  /* dasharray/dashoffset + transition posés inline par anim.js */
}

.sparkline__area {
  fill: color-mix(in srgb, var(--sl-accent) 12%, transparent);
  opacity: 0;
  transition: opacity 400ms ease; /* délai inline par card */
}

.sparkline__area.is-in {
  opacity: 1;
}

.sparkline__dot {
  fill: var(--sl-accent-2);
  opacity: 0;
  transform: scale(0);
  transform-box: fill-box;
  transform-origin: center;
  transition:
    transform 320ms cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 160ms ease;
}

.sparkline__dot.is-in {
  opacity: 1;
  transform: none;
}

/* pulse persistant du dernier point */
.sparkline__pulse {
  fill: var(--sl-accent-2);
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
}

.sparkline__pulse.is-live {
  animation: sparkline-pulse 2400ms cubic-bezier(0.2, 0.6, 0.3, 1) infinite;
}

@keyframes sparkline-pulse {
  0% { transform: scale(1); opacity: 0.55; }
  70% { transform: scale(2.6); opacity: 0; }
  100% { transform: scale(2.6); opacity: 0; }
}

/* --- Bouton rejouer ----------------------------------------------------------- */

.sparkline__replay {
  appearance: none;
  border: 1px solid color-mix(in srgb, var(--sl-muted) 35%, transparent);
  background: transparent;
  color: var(--sl-muted);
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    color 200ms ease,
    border-color 200ms ease,
    transform 200ms cubic-bezier(0.3, 1.4, 0.5, 1);
}

.sparkline__replay:hover {
  color: var(--ml-fg, #e8eaf2);
  border-color: color-mix(in srgb, var(--sl-muted) 60%, transparent);
}

.sparkline__replay:hover .sparkline__replay-icon {
  transform: rotate(-45deg);
}

.sparkline__replay:active {
  transform: scale(0.92);
}

.sparkline__replay:focus-visible {
  outline: 2px solid var(--sl-accent);
  outline-offset: 2px;
}

.sparkline__replay-icon {
  width: 13px;
  height: 13px;
  display: block;
  transition: transform 300ms cubic-bezier(0.2, 0.7, 0.25, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  .sparkline__card,
  .sparkline__delta,
  .sparkline__area,
  .sparkline__dot,
  .sparkline__replay,
  .sparkline__replay-icon {
    transition: none;
  }

  .sparkline__pulse.is-live {
    animation: none;
    opacity: 0;
  }
}