/* ============================================================
   ORIGINE DU PÉTROLE — treemap hiérarchique (D3 d3-hierarchy)
   Rendu SVG, légende explicite, petits multiples sur mobile,
   tooltip global. Voir js/oil-treemap.js.
============================================================ */

.oil-origin {
  margin-top: 70px;
}

.oil-origin__head {
  margin-bottom: 24px;
}

.oil-origin__title {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.oil-origin__lede {
  margin: 0;
  max-width: 640px;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.45;
}

/* -- Conteneur graphique ------------------------------------- */

.oil-origin__map {
  position: relative;
  width: 100%;
  aspect-ratio: 5 / 3;
  isolation: isolate;
}

.oil-svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.oil-region__frame {
  /* fill posé en inline (couleur diluée de la région) */
  stroke: rgba(0, 0, 0, 0.04);
  stroke-width: 1;
}

.oil-region__label {
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  user-select: none;
}

.oil-tile {
  cursor: pointer;
  transition: filter 0.18s ease;
  outline: none;
}

.oil-tile__rect {
  stroke: #ffffff;
  stroke-width: 2;
  transition: filter 0.18s ease;
}

.oil-tile:hover .oil-tile__rect,
.oil-tile:focus-visible .oil-tile__rect {
  filter: brightness(1.06) saturate(1.05);
}

.oil-tile:focus-visible .oil-tile__rect {
  stroke: var(--bleu);
  stroke-width: 3;
}

.oil-tile__name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  pointer-events: none;
  user-select: none;
}

.oil-tile__name--mid {
  font-size: 13px;
  font-weight: 700;
}

.oil-tile__share {
  font-size: 13px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  user-select: none;
}

.oil-tile__share--mid {
  font-size: 12px;
}

/* -- Tooltip --------------------------------------------------- */

.oil-tooltip {
  position: fixed;
  z-index: 300;
  top: 0;
  left: 0;
  min-width: 180px;
  max-width: 280px;
  padding: 12px 14px;
  color: #fff;
  background: rgba(10, 10, 35, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.24);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.14s ease;
}

.oil-tooltip.is-visible {
  opacity: 1;
}

.oil-tooltip__region {
  margin: 0 0 5px;
  color: #c9c9d4;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.oil-tooltip__name {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 750;
  line-height: 1.18;
}

.oil-tooltip__value {
  margin: 0;
  color: #fff;
  font-size: 13px;
  line-height: 1.35;
}

.oil-tooltip__value strong {
  color: var(--jaune);
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  display: inline-block;
  margin-right: 4px;
}

/* -- Fallback no-D3 ------------------------------------------ */

.oil-fallback {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.oil-fallback__region {
  padding: 14px 16px;
  background: var(--bg-soft, #f6f6f8);
  border-radius: 8px;
}

.oil-fallback__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}

.oil-fallback__swatch {
  flex: 0 0 auto;
  align-self: center;
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 3px;
}

.oil-fallback__name {
  color: var(--ink);
  font-weight: 750;
  text-transform: uppercase;
  font-size: 14px;
}

.oil-fallback__value {
  margin-left: auto;
  color: var(--ink-3);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.oil-fallback__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.oil-fallback__list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
}

.oil-fallback__country {
  color: var(--ink);
}

.oil-fallback__share {
  margin-left: auto;
  color: var(--ink-3);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* -- Responsive ----------------------------------------------- */

@media (max-width: 720px) {
  .oil-origin {
    margin-top: 52px;
  }
  .oil-origin__title {
    font-size: 24px;
  }
  .oil-origin__lede {
    font-size: 14.5px;
  }
  .oil-origin__map {
    /* Portrait : régions empilées verticalement, hauteur proportionnelle
       à leur part. Aspect ratio plus haut que large pour laisser de
       l'espace aux petites régions (Reste du monde, etc.) après l'ajout
       des gouttières inter-régions. Aspect ratio fixé pour éviter tout
       reflow JS/CSS. */
    aspect-ratio: 2 / 3;
  }
}

@media (max-width: 420px) {
  .oil-origin__map {
    aspect-ratio: 3 / 5;
  }
}

@media (prefers-reduced-motion: reduce) {
  .oil-tooltip,
  .oil-tile,
  .oil-tile__rect {
    transition: none;
  }
}