/* ── [etapes] v5 — Stepper accordéon premium ─────────────────────────────── */

/* ── Reset liste ─────────────────────────────────────────────────────────── */
.etapes-wrap { max-width: 780px; margin-inline: auto; }

.etapes-stepper {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

/* ── Item ─────────────────────────────────────────────────────────────────── */
.etape-item {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 0 20px;
}

/* ── Colonne gauche ───────────────────────────────────────────────────────── */
.etape-aside {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Connecteurs (lignes verticales) */
.etape-connector {
    width: 2px;
    background: color-mix(in srgb, var(--Neutral-900) 12%, transparent);
    position: relative;
    overflow: hidden;
}

.etape-connector--top  { height: 20px; flex-shrink: 0; }
.etape-connector--bottom { flex: 1; min-height: 20px; }

.etape-connector__fill {
    position: absolute;
    inset: 0;
    background: var(--Primary-main);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.etape-item.is-done .etape-connector--top    .etape-connector__fill,
.etape-item.is-done .etape-connector--bottom .etape-connector__fill,
.etape-item.is-active .etape-connector--top  .etape-connector__fill { transform: scaleY(1); }

/* Bulle */
.etape-bubble {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: 2px solid color-mix(in srgb, var(--Neutral-900) 15%, transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    transition:
        border-color 0.3s ease,
        background   0.3s ease,
        box-shadow   0.3s ease;
}

.etape-bubble__num,
.etape-bubble__check {
    position: absolute;
    transition: opacity 0.25s ease, transform 0.25s ease;
    line-height: 1;
}

.etape-bubble__num {
    font-family: var(--font-family-heading);
    font-size: 0.875rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: color-mix(in srgb, var(--Neutral-900) 40%, transparent);
}

.etape-bubble__check {
    display: flex;
    color: white;
    opacity: 0;
    transform: scale(0.6) rotate(-10deg);
}

.etape-bubble__check svg { width: 20px; height: 20px; }

/* Bulle — actif */
.etape-item.is-active .etape-bubble {
    background: var(--Neutral-950);
    border-color: var(--Neutral-950);
    box-shadow:
        0 0 0 4px color-mix(in srgb, var(--Neutral-950) 12%, transparent),
        0 4px 16px -4px color-mix(in srgb, var(--Neutral-950) 30%, transparent);
}

.etape-item.is-active .etape-bubble__num {
    color: var(--Primary-main);
}

/* Bulle — terminé */
.etape-item.is-done .etape-bubble {
    background: var(--Primary-main);
    border-color: var(--Primary-main);
}

.etape-item.is-done .etape-bubble__num {
    opacity: 0;
    transform: scale(0.5);
}

.etape-item.is-done .etape-bubble__check {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

/* ── Colonne droite ───────────────────────────────────────────────────────── */
.etape-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

/* ── Trigger (bouton accordéon) ───────────────────────────────────────────── */
.etape-trigger {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    background: none;
    border: none;
    padding: 12px 0;
    cursor: pointer;
    text-align: left;
    min-height: 48px;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.etape-trigger:focus-visible {
    outline: 2.5px solid var(--Primary-main);
    outline-offset: 3px;
    border-radius: 6px;
}

.etape-trigger:not(.etape-item.is-active .etape-trigger):hover {
    background: color-mix(in srgb, var(--Neutral-900) 6%, transparent);
    padding-inline: 8px;
    margin-inline: -8px;
    width: calc(100% + 16px);
}

.etape-trigger__inner {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.etape-trigger__label {
    font-family: var(--font-family-body);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--Neutral-900) 40%, transparent);
    transition: color 0.3s ease;
}

.etape-item.is-active .etape-trigger__label { color: var(--Primary-main); }
.etape-item.is-done   .etape-trigger__label { color: var(--Primary-main); }

.etape-trigger__titre {
    font-family: var(--font-family-heading);
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    color: color-mix(in srgb, var(--Neutral-900) 45%, transparent);
    line-height: 1.3;
    transition: color 0.3s ease;
}

.etape-item.is-active .etape-trigger__titre { color: var(--Neutral-950); }
.etape-item.is-done   .etape-trigger__titre { color: color-mix(in srgb, var(--Neutral-900) 60%, transparent); }

.etape-trigger__icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1.5px solid color-mix(in srgb, var(--Neutral-900) 15%, transparent);
    color: color-mix(in srgb, var(--Neutral-900) 40%, transparent);
    transition: border-color 0.3s, color 0.3s, background 0.3s, transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.etape-trigger__icon svg { width: 18px; height: 18px; display: block; }

.etape-item.is-active .etape-trigger__icon {
    background: var(--Primary-main);
    border-color: var(--Primary-main);
    color: white;
    transform: rotate(180deg);
}

/* ── Panel ────────────────────────────────────────────────────────────────── */
.etape-panel[hidden] { display: none; }

.etape-panel {
    animation: etapeIn 0.38s cubic-bezier(0.4, 0, 0.2, 1) both;
}

@keyframes etapeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.etape-panel__body {
    position: relative;
    background: white;
    border-radius: 16px;
    padding: clamp(24px, 4vw, 40px);
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow:
        0 1px 3px color-mix(in srgb, var(--Neutral-950) 6%, transparent),
        0 8px 32px -8px color-mix(in srgb, var(--Neutral-950) 14%, transparent);
}

/* Grand numéro décoratif */
.etape-panel__deco {
    position: absolute;
    top: -12px;
    right: 16px;
    font-family: var(--font-family-heading);
    font-size: clamp(80px, 14vw, 128px);
    font-weight: 900;
    letter-spacing: -0.06em;
    line-height: 1;
    color: var(--Primary-main);
    opacity: 0.07;
    pointer-events: none;
    user-select: none;
    aria-hidden: true;
}

/* Contenu */
.etape-panel__content {
    font-family: var(--font-family-body);
    font-size: var(--font-size-p);
    line-height: var(--line-height-p);
    color: var(--Neutral-700);
    position: relative;
    z-index: 1;
    margin-bottom: var(--Spacing-l);
}

.etape-panel__content p { margin: 0 0 var(--Spacing-xs); }
.etape-panel__content p:last-child { margin-bottom: 0; }

/* ── Nav prev / next ──────────────────────────────────────────────────────── */
.etape-panel__nav {
    display: flex;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.etape-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 100px;
    border: 1.5px solid var(--Neutral-200);
    background: transparent;
    font-family: var(--font-family-body);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--Neutral-700);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, color 0.2s, transform 0.15s;
}

.etape-nav-btn svg { width: 16px; height: 16px; display: block; flex-shrink: 0; }

.etape-nav-btn:hover {
    border-color: var(--Neutral-950);
    background: var(--Neutral-950);
    color: white;
    transform: translateY(-1px);
}

.etape-nav-btn:focus-visible {
    outline: 2.5px solid var(--Primary-main);
    outline-offset: 3px;
}

.etape-nav-btn--next {
    margin-left: auto;
    background: var(--Neutral-950);
    border-color: var(--Neutral-950);
    color: white;
}

.etape-nav-btn--next:hover {
    background: var(--Primary-main);
    border-color: var(--Primary-main);
}

/* ── prefers-reduced-motion ───────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .etape-connector__fill,
    .etape-bubble,
    .etape-trigger__icon,
    .etape-bubble__num,
    .etape-bubble__check { transition: none; }

    .etape-panel { animation: none; }
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
    .etape-item { grid-template-columns: 40px 1fr; gap: 0 14px; }

    .etape-bubble { width: 40px; height: 40px; }

    .etape-bubble__num  { font-size: 0.75rem; }
    .etape-bubble__check svg { width: 17px; height: 17px; }

    .etape-panel__body { padding: 20px; border-radius: 12px; }

    .etape-panel__nav { flex-direction: column; }
    .etape-nav-btn--next { margin-left: 0; }
}