/* =========================================================================
   IDENTITÉ DE MARQUE — Section "Point de départ" (Convergence 3→1)
   ========================================================================= */

.bb-id-converge,
.bb-id-converge *,
.bb-id-converge *::before,
.bb-id-converge *::after {
  box-sizing: border-box;
}

.bb-id-converge h2 {
  display: block;
  white-space: normal;
  position: static;
  max-width: none;
  overflow: visible;
}

.bb-id-converge {
  --bb-ink:         #0B1B2B;
  --bb-ink-soft:    #3A4A5A;
  --bb-ink-mute:    #5A6B7B;
  --bb-line:        #E8EEF6;
  --bb-ease:        cubic-bezier(0.16, 1, 0.3, 1);
  --bb-font: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;

  position: relative;
  font-family: var(--bb-font);
  background: #FFFFFF;
  overflow: hidden;
  isolation: isolate;
}

.bb-id-converge__inner {
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
  padding: 110px 0;
  position: relative;
  z-index: 1;
}

/* HEADER */
.bb-id-converge__head {
  margin: 0 auto 80px;
  max-width: 880px;
  text-align: center;
}

.bb-id-converge__kicker {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px 7px 16px;
  margin: 0 0 22px;
  border-radius: 999px;
  background: rgba(var(--color-blue-rgb), 0.08);
  border: 1px solid rgba(var(--color-blue-rgb), 0.16);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-blue);
  max-width: max-content;
  overflow: hidden;
  isolation: isolate;
}

.bb-id-converge__kicker::after {
  content: "";
  position: absolute;
  top: 0; left: -50%;
  width: 50%; height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(47, 123, 255, 0.25) 50%, transparent 100%);
  animation: bb-cv-shimmer 8s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

.bb-id-converge__kicker::before {
  content: "";
  position: relative;
  width: 7px; height: 7px;
  border-radius: 999px;
  background: var(--color-blue);
  flex-shrink: 0;
  z-index: 1;
  animation: bb-cv-pulse 2.5s ease-out infinite;
}

@keyframes bb-cv-shimmer {
  0%, 70%, 100% { transform: translateX(0); opacity: 0; }
  80% { opacity: 1; }
  90% { transform: translateX(400%); opacity: 0; }
}

@keyframes bb-cv-pulse {
  0% { box-shadow: 0 0 0 0 rgba(var(--color-blue-rgb), 0.6), 0 0 8px rgba(47, 123, 255, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(var(--color-blue-rgb), 0), 0 0 8px rgba(47, 123, 255, 0.6); }
  100% { box-shadow: 0 0 0 0 rgba(var(--color-blue-rgb), 0), 0 0 8px rgba(47, 123, 255, 0.6); }
}

.bb-id-converge__title {
  font-family: var(--bb-font);
  font-size: clamp(32px, 3.4vw, 50px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 auto 20px;
  color: var(--bb-ink);
  max-width: 24ch;
  text-wrap: balance;
}

.bb-id-converge__title-accent {
  position: relative;
  display: inline-block;
  color: var(--color-blue);
  white-space: nowrap;
}

.bb-id-converge__title-accent::after {
  content: "" !important;
  position: absolute !important;
  bottom: 4px !important;
  left: -4px !important;
  right: -4px !important;
  height: 16px !important;
  background: rgba(47, 123, 255, 0.35) !important;
  background-image: none !important;
  border-radius: 4px !important;
  z-index: 0 !important;
  display: block !important;
  pointer-events: none;
  /* Animation : la barre se déploie de gauche à droite au scroll */
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 1.1s cubic-bezier(0.22, 1, 0.36, 1) 0.2s;
}

.bb-id-converge.is-in-view .bb-id-converge__title-accent::after {
  transform: scaleX(1);
}

.bb-id-converge__subtitle {
  font-size: 17px;
  line-height: 1.65;
  margin: 0 auto;
  color: var(--bb-ink-soft);
  max-width: 660px;
}

@media (prefers-reduced-motion: no-preference) {
  .bb-id-converge__kicker,
  .bb-id-converge__title,
  .bb-id-converge__subtitle {
    opacity: 0;
    transform: translateY(28px);
    filter: blur(6px);
    transition: opacity 0.9s var(--bb-ease), transform 1s var(--bb-ease), filter 0.9s var(--bb-ease);
  }
  .bb-id-converge.is-in-view .bb-id-converge__kicker   { opacity: 1; transform: none; filter: none; transition-delay: 0.05s; }
  .bb-id-converge.is-in-view .bb-id-converge__title    { opacity: 1; transform: none; filter: none; transition-delay: 0.18s; }
  .bb-id-converge.is-in-view .bb-id-converge__subtitle { opacity: 1; transform: none; filter: none; transition-delay: 0.32s; }
}

/* =========================================================================
   DIAGRAM 3→1
   ========================================================================= */
.bb-id-converge__diagram {
  position: relative;
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  aspect-ratio: 1000 / 360;
}

.bb-id-converge__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: visible;
}

.bb-id-converge__svg--mobile { display: none; }

.bb-id-converge__line {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  filter: drop-shadow(0 2px 8px rgba(47, 123, 255, 0.25));
}

.bb-id-converge.is-in-view .bb-id-converge__line--1 {
  animation: bb-cv-draw 1.6s var(--bb-ease) 0.7s forwards;
}
.bb-id-converge.is-in-view .bb-id-converge__line--2 {
  animation: bb-cv-draw 1.4s var(--bb-ease) 0.9s forwards;
}
.bb-id-converge.is-in-view .bb-id-converge__line--3 {
  animation: bb-cv-draw 1.6s var(--bb-ease) 1.1s forwards;
}

@keyframes bb-cv-draw {
  to { stroke-dashoffset: 0; }
}

/* 3 cartes de départ */
.bb-id-converge__start {
  position: absolute;
  left: 0;
  width: 22%;
  min-width: 196px;
  max-width: 230px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  background: linear-gradient(180deg, #FFFFFF 0%, #FAFCFF 100%);
  border: 1px solid rgba(var(--color-blue-rgb), 0.12);
  border-radius: 14px;
  box-shadow: 0 12px 28px rgba(11, 27, 43, 0.06);
  z-index: 2;
  opacity: 0;
  transition:
    opacity 0.8s var(--bb-ease),
    transform 0.55s var(--bb-ease),
    box-shadow 0.45s ease,
    border-color 0.45s ease;
}

.bb-id-converge__start--1 { top: 22.2%; transform: translate(-20px, -50%); }
.bb-id-converge__start--2 { top: 50%;   transform: translate(-20px, -50%); }
.bb-id-converge__start--3 { top: 77.8%; transform: translate(-20px, -50%); }

.bb-id-converge.is-in-view .bb-id-converge__start--1 { opacity: 1; transform: translate(0, -50%); transition-delay: 0.55s; }
.bb-id-converge.is-in-view .bb-id-converge__start--2 { opacity: 1; transform: translate(0, -50%); transition-delay: 0.70s; }
.bb-id-converge.is-in-view .bb-id-converge__start--3 { opacity: 1; transform: translate(0, -50%); transition-delay: 0.85s; }

.bb-id-converge__start:hover {
  border-color: rgba(var(--color-blue-rgb), 0.22);
  box-shadow: 0 18px 38px rgba(var(--color-blue-rgb), 0.12);
}

.bb-id-converge__startIcon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-bright) 100%);
  color: #FFFFFF;
  flex-shrink: 0;
  box-shadow: 0 8px 18px rgba(var(--color-blue-rgb), 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.bb-id-converge__startIcon svg { width: 18px; height: 18px; }

.bb-id-converge__startText {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.bb-id-converge__startTitle {
  font-family: var(--bb-font);
  font-size: 14.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--bb-ink);
  line-height: 1.2;
}

.bb-id-converge__startHint {
  font-family: var(--bb-font);
  font-size: 12px;
  color: var(--bb-ink-mute);
  line-height: 1.3;
}

/* Nœud de destination */
.bb-id-converge__end {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translate(20px, -50%) scale(0.9);
  width: 22%;
  min-width: 200px;
  max-width: 230px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.9s var(--bb-ease), transform 0.9s var(--bb-ease);
}

.bb-id-converge.is-in-view .bb-id-converge__end {
  opacity: 1;
  transform: translate(0, -50%) scale(1);
  transition-delay: 1.5s;
}

.bb-id-converge__endHalo {
  position: absolute;
  top: 0;
  left: 50%;
  border-radius: 50%;
  pointer-events: none;
}

.bb-id-converge__endHalo--outer {
  width: 180px;
  height: 180px;
  transform: translate(-50%, -10px);
  background: radial-gradient(circle, rgba(47, 123, 255, 0.10) 0%, transparent 60%);
  animation: bb-cv-halo 4s ease-in-out infinite;
}

.bb-id-converge__endHalo--inner {
  width: 140px;
  height: 140px;
  transform: translate(-50%, 10px);
  border: 1px solid rgba(var(--color-blue-rgb), 0.15);
  animation: bb-cv-halo-rotate 20s linear infinite;
}

@keyframes bb-cv-halo {
  0%, 100% { opacity: 0.7; transform: translate(-50%, -10px) scale(1); }
  50%      { opacity: 1;   transform: translate(-50%, -10px) scale(1.08); }
}

@keyframes bb-cv-halo-rotate {
  from { transform: translate(-50%, 10px) rotate(0deg); }
  to   { transform: translate(-50%, 10px) rotate(360deg); }
}

.bb-id-converge__endMark {
  position: relative;
  width: 116px;
  height: 116px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-bright) 100%);
  display: grid;
  place-items: center;
  color: #FFFFFF;
  box-shadow:
    0 24px 48px rgba(var(--color-blue-rgb), 0.40),
    0 8px 20px rgba(11, 27, 43, 0.10),
    inset 0 1px 0 rgba(255, 255, 255, 0.40);
  z-index: 1;
}

.bb-id-converge__endMark svg { width: 56px; height: 56px; }

.bb-id-converge__endText {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.bb-id-converge__endTitle {
  font-family: var(--bb-font);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--bb-ink);
  line-height: 1.2;
}

.bb-id-converge__endHint {
  font-family: var(--bb-font);
  font-size: 12.5px;
  color: var(--bb-ink-mute);
  line-height: 1.4;
}

/* =========================================================================
   RESPONSIVE — On garde le layout horizontal de convergence
   ========================================================================= */
@media (max-width: 1100px) {
  .bb-id-converge__inner { padding: 90px 0; }
}

/* TABLETTE & MOBILE : convergence horizontale compacte */
@media (max-width: 880px) {
  .bb-id-converge__inner { padding: 80px 0; }
  .bb-id-converge__head  { margin-bottom: 56px; }

  .bb-id-converge__title {
    font-size: clamp(26px, 5.8vw, 36px);
    letter-spacing: -0.02em;
  }

  .bb-id-converge__title-accent {
    white-space: normal;
    background-image: linear-gradient(to top, rgba(47, 123, 255, 0.22) 8px, transparent 8px);
    background-repeat: no-repeat;
    background-size: 100% 100%;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
    padding: 0 2px;
  }
  .bb-id-converge__title-accent::after { display: none; }

  .bb-id-converge__subtitle {
    font-size: 15px;
    line-height: 1.6;
  }

  /* Swap SVG : on cache le desktop, on affiche le mobile */
  .bb-id-converge__svg--desktop { display: none; }
  .bb-id-converge__svg--mobile  { display: block; }

  /* Diagram garde le layout horizontal */
  .bb-id-converge__diagram {
    max-width: 520px;
    aspect-ratio: 400 / 340;
  }

  /* Cartes plus compactes */
  .bb-id-converge__start {
    width: 44%;
    min-width: 0;
    max-width: none;
    padding: 11px 12px;
    gap: 10px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(11, 27, 43, 0.05);
  }

  .bb-id-converge__startIcon {
    width: 34px;
    height: 34px;
    border-radius: 9px;
  }
  .bb-id-converge__startIcon svg { width: 16px; height: 16px; }

  .bb-id-converge__startTitle { font-size: 13.5px; }
  .bb-id-converge__startHint  { font-size: 11.5px; }

  /* Nœud final compact */
  .bb-id-converge__end {
    width: 30%;
    min-width: 0;
    max-width: none;
    gap: 12px;
  }

  .bb-id-converge__endHalo--outer { width: 140px; height: 140px; }
  .bb-id-converge__endHalo--inner { width: 108px; height: 108px; }

  .bb-id-converge__endMark {
    width: 84px;
    height: 84px;
    box-shadow:
      0 18px 36px rgba(var(--color-blue-rgb), 0.36),
      0 6px 14px rgba(11, 27, 43, 0.10),
      inset 0 1px 0 rgba(255, 255, 255, 0.40);
  }
  .bb-id-converge__endMark svg { width: 40px; height: 40px; }

  .bb-id-converge__endTitle { font-size: 14px; }
  .bb-id-converge__endHint  { font-size: 11.5px; }
}

/* MOBILE plus petit */
@media (max-width: 520px) {
  .bb-id-converge__inner { padding: 70px 0; }
  .bb-id-converge__head  { margin-bottom: 48px; }

  .bb-id-converge__diagram {
    max-width: 100%;
    aspect-ratio: 400 / 340;
  }

  .bb-id-converge__start {
    width: 47%;
    padding: 9px 10px;
    gap: 8px;
    border-radius: 11px;
  }

  .bb-id-converge__startIcon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
  }
  .bb-id-converge__startIcon svg { width: 14px; height: 14px; }

  .bb-id-converge__startTitle { font-size: 12.5px; }
  .bb-id-converge__startHint  { font-size: 10.5px; }

  .bb-id-converge__end { width: 32%; }

  .bb-id-converge__endHalo--outer { width: 118px; height: 118px; }
  .bb-id-converge__endHalo--inner { width: 92px; height: 92px; }

  .bb-id-converge__endMark { width: 72px; height: 72px; }
  .bb-id-converge__endMark svg { width: 34px; height: 34px; }

  .bb-id-converge__endTitle { font-size: 13px; }
  .bb-id-converge__endHint  { font-size: 11px; }
}

/* TRÈS PETIT MOBILE */
@media (max-width: 380px) {
  .bb-id-converge__inner { padding: 60px 0; }
  .bb-id-converge__title { font-size: 24px; line-height: 1.12; }

  .bb-id-converge__start {
    width: 49%;
    padding: 8px 9px;
    gap: 7px;
  }

  .bb-id-converge__startIcon { width: 28px; height: 28px; }
  .bb-id-converge__startIcon svg { width: 13px; height: 13px; }

  .bb-id-converge__startTitle { font-size: 11.5px; }
  .bb-id-converge__startHint  { font-size: 10px; }

  .bb-id-converge__end { width: 33%; }

  .bb-id-converge__endMark { width: 64px; height: 64px; }
  .bb-id-converge__endMark svg { width: 30px; height: 30px; }
  .bb-id-converge__endHalo--outer { width: 104px; height: 104px; }
  .bb-id-converge__endHalo--inner { width: 82px; height: 82px; }

  .bb-id-converge__endTitle { font-size: 12.5px; }
  .bb-id-converge__endHint  { font-size: 10.5px; }
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  .bb-id-converge *,
  .bb-id-converge *::before,
  .bb-id-converge *::after {
    animation: none !important;
    transition-duration: 0.1s !important;
  }
  .bb-id-converge__kicker,
  .bb-id-converge__title,
  .bb-id-converge__subtitle,
  .bb-id-converge__start,
  .bb-id-converge__end {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
  .bb-id-converge__start--1 { transform: translateY(-50%) !important; }
  .bb-id-converge__start--2 { transform: translateY(-50%) !important; }
  .bb-id-converge__start--3 { transform: translateY(-50%) !important; }
  .bb-id-converge__end      { transform: translateY(-50%) !important; }
  .bb-id-converge__line { stroke-dashoffset: 0 !important; }
  .bb-id-converge__title-accent::after { transform: scaleX(1) !important; }
}