/* ──────────────────────────────────────────────────────────
   L'ÉCLAT DU SAVOIR – "La Timeline des Possibles"
   Section horizontale immersive : frise + nœuds + mini-cartes
   ────────────────────────────────────────────────────────── */

.sp-timeline-section {
  position: relative;
  width: 100%;
  padding: 4rem 0 3rem;
  background: #f8f9fc;
  overflow: hidden;
}

/* Subtle dot-grid background */
.sp-timeline-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0,71,255,0.06) 1.2px, transparent 1.2px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}

/* ── Header ─────────────────────────────────────────────── */
.sp-timeline-header {
  position: relative;
  z-index: 5;
  text-align: center;
  margin-bottom: 2.5rem;
}

.sp-timeline-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #E85D2C;
  margin-bottom: 0.5rem;
}

.sp-timeline-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.025em;
  margin: 0 0 0.5rem;
}

.sp-timeline-subtitle {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  color: #64748b;
  margin: 0;
}

/* ── Timeline Stage ─────────────────────────────────────── */
.sp-timeline-stage {
  position: relative;
  width: 100%;
  height: 320px;
  overflow: hidden;
  z-index: 5;
}

/* ── The scrollable track ───────────────────────────────── */
.sp-timeline-track {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 5vw;
  gap: 0;
  will-change: transform;
  cursor: grab;
  user-select: none;
}

.sp-timeline-track.dragging {
  cursor: grabbing;
}

/* ── Horizontal gradient river ──────────────────────────── */
.sp-river-line {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  transform: translateY(-50%);
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 71, 255, 0.15) 5%,
    rgba(0, 71, 255, 0.4) 25%,
    rgba(255, 34, 45, 0.6) 55%,
    rgba(255, 34, 45, 0.3) 80%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

/* Animated shimmer on river */
.sp-river-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
  animation: sp-river-shimmer 4s linear infinite;
}

@keyframes sp-river-shimmer {
  0%   { left: -60%; }
  100% { left: 120%; }
}

/* ── River particles (SVG-based, done via JS) ───────────── */
.sp-river-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  overflow: hidden;
}

.sp-river-dot {
  position: absolute;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-top: -3px;
  background: #E85D2C;
  box-shadow: 0 0 8px rgba(232,93,44,0.7);
  animation: sp-dot-flow linear infinite;
}

@keyframes sp-dot-flow {
  0%   { opacity: 0; transform: translateX(0) scale(0.5); }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { opacity: 0; transform: translateX(100vw) scale(0.8); }
}

/* ── Node (category bubble on the frise) ────────────────── */
.sp-tl-node {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  margin: 0 3rem;
  z-index: 10;
}

/* Alternating up/down position for nodes */
.sp-tl-node:nth-child(odd) {
  flex-direction: column;    /* connector below bubble */
  padding-bottom: 60px;
  margin-top: -60px;
}
.sp-tl-node:nth-child(even) {
  flex-direction: column-reverse; /* connector above bubble */
  padding-top: 60px;
  margin-bottom: -60px;
}

/* Connector stem from bubble to river */
.sp-tl-connector {
  width: 1px;
  height: 56px;
  background: linear-gradient(180deg, rgba(0,71,255,0.3), rgba(232,93,44,0.3));
  flex-shrink: 0;
}

/* Dot on river at connection point */
.sp-tl-river-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #E85D2C;
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(232,93,44,0.2);
  transition: box-shadow 0.3s ease;
  z-index: 3;
}

.sp-tl-node:hover .sp-tl-river-dot {
  box-shadow: 0 0 0 6px rgba(232,93,44,0.3), 0 0 20px rgba(232,93,44,0.4);
}

/* Bubble */
.sp-tl-bubble {
  background: #fff;
  border: 1.5px solid rgba(0,71,255,0.12);
  border-radius: 50px;
  padding: 12px 22px;
  white-space: nowrap;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(0,71,255,0.06);
  transition: all 0.35s cubic-bezier(0.175,0.885,0.32,1.275);
  text-decoration: none;
  color: inherit;
  animation: sp-bubble-breathe 3.5s ease-in-out infinite;
  /* Stagger breathing via custom property */
  animation-delay: var(--breathe-delay, 0s);
}

@keyframes sp-bubble-breathe {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.03); }
}

.sp-tl-node:hover .sp-tl-bubble,
.sp-tl-bubble:hover {
  background: #0047ff;
  border-color: #0047ff;
  color: #fff;
  box-shadow: 0 8px 28px rgba(0,71,255,0.25);
  transform: scale(1.1);
  animation-play-state: paused;
}

.sp-tl-bubble i {
  font-size: 1.1rem;
  color: #E85D2C;
  transition: color 0.3s;
}

.sp-tl-node:hover .sp-tl-bubble i,
.sp-tl-bubble:hover i {
  color: rgba(255,255,255,0.8);
}

.sp-tl-bubble-label {
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #1e293b;
  transition: color 0.3s;
}

.sp-tl-node:hover .sp-tl-bubble-label,
.sp-tl-bubble:hover .sp-tl-bubble-label {
  color: #fff;
}

.sp-tl-bubble-count {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  background: #0047ff;
  padding: 2px 8px;
  border-radius: 20px;
  transition: background 0.3s;
}

.sp-tl-node:hover .sp-tl-bubble-count {
  background: rgba(255,255,255,0.25);
}

/* ── Mini-cards panel that expands under/above bubble ────── */
.sp-tl-cards {
  position: absolute;
  display: flex;
  flex-direction: row;
  gap: 10px;
  pointer-events: none;
  opacity: 0;
  transform: scale(0.85) translateY(8px);
  transition: opacity 0.3s ease, transform 0.35s cubic-bezier(0.175,0.885,0.32,1.275);
  z-index: 50;
  padding: 12px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 16px 50px rgba(15,23,42,0.12);
  border: 1px solid #f1f5f9;
  white-space: nowrap;
}

/* Odd nodes: cards appear above */
.sp-tl-node:nth-child(odd) .sp-tl-cards {
  bottom: calc(100% + 12px);
  left: 50%;
  transform-origin: bottom center;
  transform: translateX(-50%) scale(0.85);
}

/* Even nodes: cards appear below */
.sp-tl-node:nth-child(even) .sp-tl-cards {
  top: calc(100% + 12px);
  left: 50%;
  transform-origin: top center;
  transform: translateX(-50%) scale(0.85);
}

.sp-tl-node:hover .sp-tl-cards {
  opacity: 1;
  pointer-events: auto;
}

.sp-tl-node:nth-child(odd):hover .sp-tl-cards {
  transform: translateX(-50%) scale(1) translateY(0);
}

.sp-tl-node:nth-child(even):hover .sp-tl-cards {
  transform: translateX(-50%) scale(1) translateY(0);
}

/* Mini card */
.sp-tl-mini-card {
  display: flex;
  flex-direction: column;
  width: 150px;
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  border: 1px solid #f1f5f9;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  flex-shrink: 0;
}

.sp-tl-mini-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(15,23,42,0.12);
}

.sp-tl-mini-thumb {
  height: 80px;
  overflow: hidden;
  background: linear-gradient(135deg, #1A1C3B, #0047ff);
}

.sp-tl-mini-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.sp-tl-mini-card:hover .sp-tl-mini-thumb img {
  transform: scale(1.08);
}

.sp-tl-mini-info {
  padding: 8px 10px;
  background: #fff;
}

.sp-tl-mini-info h4 {
  font-family: 'Outfit', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  color: #1e293b;
  margin: 0 0 4px;
  white-space: normal;
  line-height: 1.3;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
}

.sp-tl-mini-price {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  color: #0047ff;
}

.sp-tl-mini-price.is-free {
  color: #10b981;
}

/* Empty state mini card */
.sp-tl-empty {
  padding: 10px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  color: #94a3b8;
  font-style: italic;
}

/* ── Navigation arrows ──────────────────────────────────── */
.sp-tl-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  display: flex;
  gap: 8px;
}

.sp-tl-nav.left  { left: 12px; }
.sp-tl-nav.right { right: 12px; }

.sp-tl-nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  border: 1.5px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #334155;
  font-size: 1rem;
  box-shadow: 0 3px 10px rgba(0,0,0,0.06);
}

.sp-tl-nav-btn:hover {
  background: #0047ff;
  border-color: #0047ff;
  color: #fff;
  transform: scale(1.08);
}

/* ── Edge fade gradients ─────────────────────────────────── */
.sp-timeline-stage::before,
.sp-timeline-stage::after {
  content: '';
  position: absolute;
  top: 0;
  width: 80px;
  height: 100%;
  z-index: 15;
  pointer-events: none;
}

.sp-timeline-stage::before {
  left: 0;
  background: linear-gradient(90deg, #f8f9fc, transparent);
}

.sp-timeline-stage::after {
  right: 0;
  background: linear-gradient(270deg, #f8f9fc, transparent);
}

/* ── Footer CTA ──────────────────────────────────────────── */
.sp-timeline-footer {
  position: relative;
  z-index: 5;
  text-align: center;
  margin-top: 2rem;
}

.sp-timeline-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #0047ff, #E85D2C);
  color: #fff;
  padding: 13px 32px;
  border-radius: 30px;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(0,71,255,0.25);
}

.sp-timeline-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,71,255,0.35);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .sp-timeline-stage {
    height: 260px;
  }

  .sp-tl-node {
    margin: 0 1.5rem;
  }

  .sp-tl-cards {
    flex-direction: column;
    width: 160px;
  }

  .sp-tl-mini-card {
    width: 100%;
  }
}