/* Nos Domaines d'Action — navigateur interactif */

.expertise-nav {
    position: relative;
}

.expertise-mobile-sheet {
    display: none;
}

.expertise-nav-indicator {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 0;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid rgba(37, 99, 235, 0.16);
    box-shadow: 0 14px 34px -18px rgba(37, 99, 235, 0.35);
    transform: translateY(0);
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), height 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: none;
    z-index: 0;
}

.expertise-nav-item {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: baseline;
    gap: 1rem;
    width: 100%;
    text-align: left;
    padding: 1.15rem 1.35rem;
    border-radius: 14px;
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    font: inherit;
    transition: background 0.3s ease;
}

.expertise-nav-item + .expertise-nav-item { margin-top: 0.4rem; }

.expertise-nav-num {
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: #94a3b8;
    transition: color 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
    display: inline-block;
}

.expertise-nav-label {
    font-size: 1.05rem;
    font-weight: 700;
    color: #64748b;
    line-height: 1.35;
    transition: color 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: inline-block;
}

.expertise-nav-item:hover:not(.is-active) { background: rgba(37, 99, 235, 0.05); }

.expertise-nav-item.is-active .expertise-nav-num { color: #2563eb; transform: translateX(2px); }
.expertise-nav-item.is-active .expertise-nav-label { color: #06132b; transform: translateX(2px); }

.expertise-stage {
    position: relative;
    height: 100%;
    min-height: 500px;
    background: linear-gradient(155deg, #06132b 0%, #0d2245 100%);
    border-radius: 28px;
    padding: 3rem 2.5rem;
    overflow: hidden;
    color: #ffffff;
}

.expertise-ghost-num {
    position: absolute;
    top: -3.5rem;
    right: -0.5rem;
    font-size: 15rem;
    font-weight: 800;
    line-height: 1;
    color: rgba(255, 255, 255, 0.045);
    pointer-events: none;
    user-select: none;
    transform: scale(1) rotate(0deg);
    transition: opacity 0.4s ease, transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.expertise-ghost-num.is-swapping {
    opacity: 0;
    transform: scale(0.8) rotate(-8deg);
}

.expertise-panel {
    position: absolute;
    inset: 3rem 2.5rem;
    z-index: 1;
    opacity: 0;
    visibility: hidden;
    transform: translateY(22px) scale(0.97);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                visibility 0s linear 0.5s;
    display: flex;
    flex-direction: column;
    justify-content: center;
    pointer-events: none;
}

.expertise-panel.is-active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                visibility 0s linear 0s;
    pointer-events: auto;
    z-index: 2;
}

.expertise-panel h3 {
    font-size: 1.7rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.expertise-panel .lead {
    font-size: 1.05rem;
    font-style: italic;
    color: #b9c4dc;
    margin-bottom: 1.75rem;
    max-width: 46ch;
}

.expertise-panel ul {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.65rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
}

@media (min-width: 640px) {
    .expertise-panel ul { grid-template-columns: 1fr 1fr; }
}

.expertise-panel li {
    display: flex;
    align-items: flex-start;
    font-size: 0.92rem;
    color: #cbd5e1;
    line-height: 1.5;
}

.expertise-panel li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #4d8dff;
    margin: 0.5rem 0.65rem 0 0;
    flex-shrink: 0;
}

@media (max-width: 480px) {
    .expertise-nav-item {
        gap: 0.75rem;
        padding: 0.95rem 1rem;
    }

    .expertise-nav-label {
        font-size: 0.95rem;
    }

    .expertise-stage {
        padding: 2rem 1.15rem;
        min-height: 650px;
        border-radius: 1.25rem;
    }

    .expertise-panel {
        inset: 2rem 1.15rem;
    }

    .expertise-ghost-num { font-size: 8rem; }

    .expertise-panel h3 {
        font-size: 1.45rem;
    }

    .expertise-panel .lead {
        font-size: 0.95rem;
        margin-bottom: 1.25rem;
    }

    .expertise-panel li {
        font-size: 0.88rem;
    }

    .expertise-panel a {
        width: 100%;
        justify-content: center;
        text-align: center;
        letter-spacing: 0.06em;
    }
}

@media (max-width: 1023px) {
    .expertise-nav {
        display: grid;
        gap: 0.75rem;
    }

    .expertise-nav-indicator,
    .expertise-stage {
        display: none;
    }

    .expertise-nav-item {
        align-items: center;
        margin-top: 0 !important;
        background: #ffffff;
        border-color: rgba(37, 99, 235, 0.12);
        box-shadow: 0 12px 28px -22px rgba(6, 19, 43, 0.4);
        transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
    }

    .expertise-nav-item::after {
        content: '+';
        margin-left: auto;
        color: #2563eb;
        font-size: 1.25rem;
        font-weight: 800;
        line-height: 1;
        transition: transform 0.35s ease, color 0.35s ease;
    }

    .expertise-nav-item.is-active {
        background: #ffffff;
        border-color: rgba(37, 99, 235, 0.12);
        box-shadow: 0 12px 28px -22px rgba(6, 19, 43, 0.4);
        transform: none;
    }

    .expertise-nav-item.is-active::after {
        content: '+';
        color: #2563eb;
        transform: none;
    }

    .expertise-nav-item.is-active .expertise-nav-num {
        color: #94a3b8;
        transform: none;
    }

    .expertise-nav-item.is-active .expertise-nav-label {
        color: #64748b;
        transform: none;
    }

    .expertise-nav-item.is-mobile-open {
        background: #06132b;
        border-color: rgba(6, 19, 43, 0.18);
        box-shadow: 0 18px 38px -24px rgba(6, 19, 43, 0.55);
        transform: translateY(1px);
    }

    .expertise-nav-item.is-mobile-open::after {
        content: '-';
        color: #ffffff;
        transform: rotate(180deg);
    }

    .expertise-nav-item.is-mobile-open .expertise-nav-num,
    .expertise-nav-item.is-mobile-open .expertise-nav-label {
        color: #ffffff;
    }

    body.expertise-sheet-open {
        overflow: hidden;
    }

    .expertise-mobile-sheet {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 120;
        pointer-events: none;
    }

    .expertise-mobile-sheet.is-visible {
        pointer-events: auto;
    }

    .expertise-mobile-backdrop {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        background: rgba(6, 19, 43, 0.38);
        border: 0;
        opacity: 0;
        transition: opacity 0.28s ease;
    }

    .expertise-mobile-sheet.is-visible .expertise-mobile-backdrop {
        opacity: 1;
    }

    .expertise-mobile-sheet-card {
        position: absolute;
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        max-height: min(78vh, 680px);
        overflow: auto;
        -webkit-overflow-scrolling: touch;
        background: linear-gradient(155deg, #06132b 0%, #0d2245 100%);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 1.25rem;
        color: #ffffff;
        padding: 1rem 1.15rem 1.25rem;
        box-shadow: 0 28px 70px -26px rgba(6, 19, 43, 0.78);
        opacity: 0;
        transform: translateY(28px) scale(0.98);
        transition: opacity 0.26s ease, transform 0.42s cubic-bezier(0.16, 1, 0.3, 1);
        will-change: opacity, transform;
    }

    .expertise-mobile-sheet.is-visible .expertise-mobile-sheet-card {
        opacity: 1;
        transform: translateY(0) scale(1);
    }

    .expertise-mobile-sheet-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding-bottom: 0.85rem;
        margin-bottom: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .expertise-mobile-sheet-head p {
        margin: 0;
        font-size: 1rem;
        font-weight: 800;
        line-height: 1.3;
    }

    .expertise-mobile-close {
        position: relative;
        width: 2.25rem;
        height: 2.25rem;
        flex: 0 0 auto;
        border-radius: 9999px;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.14);
    }

    .expertise-mobile-close span {
        position: absolute;
        left: 50%;
        top: 50%;
        width: 0.85rem;
        height: 2px;
        border-radius: 9999px;
        background: #ffffff;
        transform-origin: center;
    }

    .expertise-mobile-close span:first-child {
        transform: translate(-50%, -50%) rotate(45deg);
    }

    .expertise-mobile-close span:last-child {
        transform: translate(-50%, -50%) rotate(-45deg);
    }

    .expertise-mobile-panel-inner {
        display: flex;
        flex-direction: column;
        opacity: 0;
        transform: translateY(10px);
        transition: opacity 0.34s ease 0.08s, transform 0.38s cubic-bezier(0.16, 1, 0.3, 1) 0.08s;
    }

    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner {
        opacity: 1;
        transform: translateY(0);
    }

    .expertise-mobile-panel-inner h3 {
        display: none;
    }

    .expertise-mobile-panel-inner .lead {
        color: #b9c4dc;
        font-size: 0.92rem;
        font-style: italic;
        line-height: 1.55;
        margin-bottom: 1rem;
    }

    .expertise-mobile-panel-inner ul {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.55rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-top: 1rem;
    }

    .expertise-mobile-panel-inner li {
        display: flex;
        align-items: flex-start;
        color: #cbd5e1;
        font-size: 0.86rem;
        line-height: 1.45;
        opacity: 0;
        transform: translateY(5px);
        transition: opacity 0.28s ease, transform 0.32s ease;
    }

    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner li {
        opacity: 1;
        transform: translateY(0);
    }

    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner li:nth-child(1) { transition-delay: 0.12s; }
    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner li:nth-child(2) { transition-delay: 0.15s; }
    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner li:nth-child(3) { transition-delay: 0.18s; }
    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner li:nth-child(4) { transition-delay: 0.21s; }
    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner li:nth-child(5) { transition-delay: 0.24s; }
    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner li:nth-child(6) { transition-delay: 0.27s; }
    .expertise-mobile-sheet.is-visible .expertise-mobile-panel-inner li:nth-child(7) { transition-delay: 0.3s; }

    @media (prefers-reduced-motion: reduce) {
        .expertise-nav-item,
        .expertise-nav-item::after,
        .expertise-mobile-backdrop,
        .expertise-mobile-sheet-card,
        .expertise-mobile-panel-inner,
        .expertise-mobile-panel-inner li {
            transition: none;
        }

        .expertise-mobile-backdrop,
        .expertise-mobile-sheet-card,
        .expertise-mobile-panel-inner,
        .expertise-mobile-panel-inner li {
            opacity: 1;
            transform: none;
        }
    }

    .expertise-mobile-panel-inner li::before {
        content: '';
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: #4d8dff;
        margin: 0.45rem 0.6rem 0 0;
        flex-shrink: 0;
    }

    .expertise-mobile-panel-inner a {
        width: 100%;
        justify-content: center;
        text-align: center;
        margin-top: 1.2rem;
        background: #ffffff;
        color: #06132b;
        letter-spacing: 0.06em;
    }
}