/* =========================================
   PAGE PHOTOVOLTAÏQUE (../html/photovoltaique.html)
   ========================================= */

/* ==== HERO ==== */
.photovoltaique .hero-title {
    margin-bottom: 0;
}


/* ==== DU SOLEIL A VOTRE PRISE, SIMPLEMENT ==== */
.etapes-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 64px;
}


.etapes-title {
    font-size: 64px;
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -.05em;
    margin: 0;
}
.etapes-intro {
    font-size: 24px;
    text-align: right;
    letter-spacing: -.03em;
}

.etapes-track {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scrollbar-width: none;
    margin-right: -45px;
}
.etapes-track::-webkit-scrollbar { display: none; }

.etape {
    position: relative;
    flex: 0 0 calc(100% - 80px);
    scroll-snap-align: start;
    border-radius: 15px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    isolation: isolate;

}
.etape-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.etape-step {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--couleur-gris-fond);
    backdrop-filter: blur(16px);
    padding: 10px 20px;
    border-radius: 7px;
    font-size: 16px;
    letter-spacing: -.02em;
    color: var(--couleur-blanc);
    font-family: var(--JBM);
}

.etape-card {
    position: absolute;
    left: 20px;
    bottom: 20px;
    width: min(440px, 70%);
    background:  var(--couleur-gris-fond);
    backdrop-filter: blur(16px);
    border: 1px solid var(--couleur-gris-bordure);
    border-radius: 15px;
    padding: 20px 20px;
    color: var(--couleur-blanc);
}
.etape-card-label {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--JBM);
    font-size: .9rem;
    letter-spacing: -.02em;
    margin-bottom: 48px;
}
.etape-card-square {
    width: 12px;
    height: 12px;
    background: var(--couleur-blanc);
    display: inline-block;
}
.etape-card-title {
    display: block;
    font-family: var(--JBM);
    font-size: .8rem;
    letter-spacing: -.02em;
    margin-bottom: 16px;
}
.etape-card-text {
    font-size: 16px;
    line-height: 1.5;
    margin: 0;
}


/* ==== LA SOLUTION ADPATEE A VOTRE PROJET ==== */
.solutions {
    position: relative;
    z-index: 2;
    background: var(--couleur-vert);
    color: var(--couleur-blanc);
    border-radius: 40px;
}

.solutions-head {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto 56px;
}


.solutions-title {
    font-size: 64px;
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -.05em;
    margin: 0 0 20px;
}
.solutions-intro {
    font-size: 24px;
    letter-spacing: -.03em;
    margin: 0;
}

.solutions-grid {
    display: flex;
    gap: 20px;
    align-items: stretch;
    max-width: 1100px;
    margin: 0 auto;
}

.solution {
    position: relative;
    flex: 1;
    min-width: 0;
    background: var(--couleur-jaune-casse);
    color: var(--couleur-vert);
    border: 2px solid transparent;
    border-radius: 15px;
    padding: 16px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 20px;
    outline: none;
    transition:
            flex-grow .55s cubic-bezier(.22,1,.36,1),
            transform .3s ease,
            border-color .3s ease,
            opacity .4s ease,
            box-shadow .3s ease;
}

.solution:hover,
.solution:focus-visible {
    transform: translateY(-5px);
    box-shadow: 0 18px 40px color-mix(in srgb, var(--couleur-noir) 25%, transparent);
}

.solution-visual {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.solution-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .5s ease;
}

.solution:hover .solution-visual img { transform: scale(1.04); }

.solution-tag {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: var(--couleur-gris-fond);
    backdrop-filter: blur(16px);
    color: var(--couleur-blanc);
    font-size: .85rem;
    padding: 8px 14px;
    border-radius: 999px;
}

.solution-body {
    padding: 0 10px 10px;
}

.solution-name {
    font-size: 1.5rem;
    font-weight: 400;
    margin: 0;
    line-height: 1.1;
}

.solution-detail {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(10px);
    transition: max-height .55s cubic-bezier(.22,1,.36,1), opacity .4s ease, transform .45s ease;
}

.solution-detail p {
    font-size: 1.05rem;
    line-height: 1.55;
    margin: 18px 0 20px;
}

.solution-cta {
    display: inline-flex;
    padding: 12px 24px;
    background: var(--couleur-vert);
    color: var(--couleur-blanc);
    border-radius: 999px;
    text-decoration: none;
    font-size: 1rem;
    transition: transform .2s ease;
}

.solution-cta:hover { transform: translateY(-2px); }

.solution-badge {
    position: absolute;
    top: 28px;
    right: 28px;
    z-index: 2;
    background: var(--couleur-jaune);
    color: var(--couleur-marron);
    font-size: .8rem;
    font-weight: 400;
    letter-spacing: .04em;
    padding: 7px 14px;
    border-radius: 999px;
}

.solution.is-open {
    flex-grow: 1.7;
    border-color: var(--couleur-gris-bordure);
}

.solution.is-open .solution-detail {
    max-height: 340px;
    opacity: 1;
    transform: none;
}

.solutions-grid.has-open .solution:not(.is-open) {
    flex-grow: .7;
    opacity: .72;
}


/* ==== SUR QUOI NOUS INSTALLONS ==== */
.supports {
    position: relative;
    z-index: 1;
    margin-top: -40px;
    padding-top: calc(clamp(48px, 6vh, 64px) + 40px);
    padding-bottom: clamp(48px, 6vh, 64px);
    background: var(--couleur-jaune-casse);
    color: var(--couleur-noir);
}

.supports-head {
    margin-bottom: clamp(24px, 4vh, 40px);
}


.supports-title {
    font-size: 64px;
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -.05em;
    margin: 0;
}

.supports-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: stretch;
}

.supports-visual {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    min-height: 320px;
    background: color-mix(in srgb, var(--couleur-noir) 5%, transparent);
}
.supports-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.06);
    transition: opacity .5s ease, transform .7s cubic-bezier(.22,1,.36,1);
}
.supports-visual.is-showing .supports-img { opacity: 1; transform: scale(1); }

.supports-intro {
    font-size: 18px;
    margin: 0 0 24px;
    max-width: 42ch;
}

.supports-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.support-item {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 13px 0;
    cursor: pointer;
    border-bottom: 1px solid color-mix(in srgb, var(--couleur-noir) 10%, transparent);
}

.support-item::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 0;
    height: 1px;
    background: var(--couleur-noir);
    transition: width .45s cubic-bezier(.22,1,.36,1);
}
.support-item:hover::after,
.support-item.is-active::after { width: 100%; }

.support-name {
    font-size: clamp(1.15rem, 1.6vw, 1.6rem);
    font-weight: 400;
    color: #5b5b5b;
    transition: color .3s ease, transform .3s ease;
}

.support-item:hover .support-name { color: var(--couleur-noir); }
.support-item.is-active .support-name { transform: translateX(4px); }

.support-toggle {
    flex-shrink: 0;
    position: relative;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--couleur-noir);
    transition: transform .3s ease;
}
.support-item:hover .support-toggle { transform: scale(1.08); }

.support-toggle img {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 20px;
    height: 20px;
    transition: opacity .25s ease, transform .3s ease;
}
.ico-plus  { opacity: 1; transform: rotate(0); }
.ico-moins { opacity: 0; transform: rotate(-90deg); }

.support-toggle .ico-plus { width: 32px; height: 32px; }

.support-item.is-active .support-name { color: var(--couleur-noir); }
.support-item.is-active .ico-plus  { opacity: 0; transform: rotate(90deg); }
.support-item.is-active .ico-moins { opacity: 1; transform: rotate(0); }


/* ==== NOTRE ACCOMPAGNEMENT ==== */
.parcours {
    position: relative;
    background: var(--couleur-jaune-casse);
    color: var(--couleur-noir);
}

.parcours-head {
    text-align: right;
    margin-bottom: clamp(40px, 8vh, 100px);
}


.parcours-title {
    font-size: 64px;
    font-weight: 400;
    letter-spacing: -.05em;
    line-height: 0.9;
    margin: 0;
}

.parcours-stage-wrap {
    overflow-x: clip;
    scrollbar-width: none;
    transition: filter .3s ease, opacity .3s ease;
}

.parcours-stage-wrap::-webkit-scrollbar { display: none; }

@media (max-width: 1200px) {
    .parcours-stage-wrap { overflow-x: auto; }
}

.parcours-stage {
    position: relative;
    height: 340px;
    min-width: 1100px;
}

.parcours-line {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.parcours-line line,
.parcours-line rect {
    stroke: var(--couleur-jaune);
    stroke-width: 2;
    stroke-linecap: round;
    vector-effect: non-scaling-stroke;
    fill: none;
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    transition: stroke-dashoffset 1.1s cubic-bezier(.7,0,.3,1);
}

.parcours-line rect {
    stroke-dasharray: 1.01;
    stroke-dashoffset: 1.01;
}

.parcours-stage.is-in line               { stroke-dashoffset: 0; transition-delay: 0s; }
.parcours-stage.is-in rect               { stroke-dashoffset: 0; transition-delay: .5s; }
.parcours-stage.is-in line:last-of-type  { stroke-dashoffset: 0; transition-delay: 1.1s; }


.parcours-node {
    position: absolute;
    transform: translate(0, -7px);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 150px;
    background: none;
    border: none;
    padding: 0;
    text-align: left;
    cursor: pointer;
    opacity: 0;
    transition: opacity .45s ease;
    transition-delay: calc(.6s + var(--i) * .07s);
}
.parcours-stage.is-in .parcours-node { opacity: 1; }

.parcours-node::before {
    content: "";
    width: 14px;
    height: 14px;
    margin-bottom: 18px;
    background: var(--couleur-jaune);
    transition: background .3s ease, transform .3s ease;
}
.node-icon {
    position: absolute;
    top: -46px;
    left: 0;
    width: 34px;
    height: 34px;
    transition: transform .3s ease;
}
.node-label {
    margin-bottom: 10px;
    font-size: 1.05rem;
    line-height: 1.2;
    color: var(--couleur-vert);
}

.node-info {
    width: 20px;
    height: 20px;
    opacity: .45;
    transition: opacity .2s ease;
}

.parcours-node:hover .node-icon { transform: translateY(-4px); }
.parcours-node:hover .node-info { opacity: 1; }
.parcours-node:hover::before { transform: scale(1.15); }

.parcours-node.is-active::before { background: var(--couleur-noir); transform: scale(1.1); }
.parcours-node.is-active .node-info { opacity: 1; }
.parcours-node.is-active .node-icon { transform: translateY(-4px); }

.parcours.has-panel .parcours-stage-wrap { filter: saturate(.6); opacity: .5; }

.parcours-panel[hidden] { display: none; }
.parcours-panel {
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: 20;
    width: min(520px, 92%);
    padding: 40px;
    background: var(--couleur-vert);
    color: var(--couleur-blanc);
    animation: panelIn .35s cubic-bezier(.22,1,.36,1);
}
@keyframes panelIn {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

.panel-close {
    position: absolute;
    top: 0;
    right: 0;
    width: 56px;
    height: 56px;
    border: none;
    background: var(--couleur-gris);
    color: var(--couleur-blanc);
    font-size: 1.2rem;
    cursor: pointer;
    transition: background .2s ease;
}

.panel-close:hover { background: var(--couleur-gris-clair); }

.panel-eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
    font-family: var(--JBM);
    font-size: .85rem;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.panel-square {
    width: 14px;
    height: 14px;
    background: var(--couleur-blanc);
    flex-shrink: 0;
}

.panel-title {
    font-size: 64px;
    font-weight: 700;
    margin: 0 0 24px;
    line-height: 0.9;
    letter-spacing: -.05em;
}

.panel-text {
    font-size: 18px;
    letter-spacing: -.05em;
    margin: 0 0 56px;
}

.panel-tag {
    display: block;
    margin-bottom: 24px;
    font-family: var(--JBM);
    font-size: .85rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.panel-nav {
    display: flex;
    gap: 10px;
}

.panel-arrow {
    width: 56px;
    height: 56px;
    border: none;
    background: var(--couleur-gris);
    color: var(--couleur-blanc);
    font-size: 1.4rem;
    cursor: pointer;
    transition: background .2s ease;
}
.panel-arrow:hover { background: var(--couleur-gris-clair); }

@media (max-width: 800px) {
    .parcours-head { text-align: left; }
    .parcours-panel {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        border-radius: 20px 20px 0 0;
    }
}
@media (prefers-reduced-motion: reduce) {
    .parcours-line line, .parcours-line rect { transition: none; stroke-dashoffset: 0; }
    .parcours-node { transition: none; opacity: 1; }
}


/* ==== MARQUES / MATÉRIEL ==== */
.brands {
    background: var(--couleur-jaune-casse);
    color: var(--couleur-noir);
    border-radius: 0 0 40px 40px;
}

.brands-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: clamp(48px, 7vh, 90px);
}


.brands-title {
    font-size: 64px;
    font-weight: 400;
    letter-spacing: -.05em;
    line-height: 0.9;
    margin: 0;
}

.brands-intro {
    font-size: 24px;
    text-align: right;
    letter-spacing: -.03em;
    margin: 16px 0 0;
}

.brand-row {
    display: grid;
    grid-template-columns: 240px 1fr;
    align-items: center;
    gap: 40px;
    padding: 20px 0;
    border-top: 1px solid color-mix(in srgb, var(--couleur-noir) 12%, transparent);
}

.brand-row:last-child { border-bottom: 1px solid color-mix(in srgb, var(--couleur-noir) 12%, transparent); }

.brand-cat {
    font-size: clamp(1.75rem, 2.5vw, 2.25rem);
    font-weight: 700;
    color: var(--couleur-marron);
}

.brand-logos {
    list-style: none;
    margin: 0; padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, 160px);
    justify-content: start;
    gap: 14px;
}

.brand-logos li {
    height: 76px;
    display: grid;
    place-items: center;
    padding: 0 20px;
    background: color-mix(in srgb, var(--couleur-noir) 3.5%, transparent);
    border-radius: 12px;
    transition: background .25s ease;
}

.brand-logos li:hover { background: color-mix(in srgb, var(--couleur-noir) 6%, transparent); }

.brand-logos img {
    height: calc(34px * var(--s, 1));
    width: auto;
    max-width: 100%;
    object-fit: contain;
    filter: grayscale(1) brightness(0);
    opacity: .8;
    transition: opacity .3s ease, filter .3s ease, transform .3s ease;
}

.brand-logos li:hover img {
    filter: none;
    opacity: 1;
    transform: translateY(-3px);
}

@media (max-width: 800px) {
    .brands-head { flex-direction: column; }
    .brands-intro { text-align: left; }
    .brand-row { grid-template-columns: 1fr; gap: 20px; }
}


/* ==== INVESTISSEMENT ==== */
.invest {
    background: var(--couleur-blanc);
    color: var(--couleur-noir);
}

.invest-head {
    text-align: center;
    max-width: 1100px;
    margin: 0 auto clamp(48px, 7vh, 90px);
}


.invest-title {
    margin: 0 0 22px;
    font-size: 64px;
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -.05em;
    white-space: nowrap;
}

.invest-intro {
    max-width: 760px;
    margin: 0 auto;
    font-size: 24px;
    line-height: 1.45;
    letter-spacing: -.03em;
}

.invest-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 40px;
}

.invest-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    aspect-ratio: 3 / 5;
    isolation: isolate;
}
.invest-card-img {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    z-index: -2;
    transition: transform .5s ease;
}
.invest-card::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(to bottom, color-mix(in srgb, var(--couleur-noir) 10%, transparent), color-mix(in srgb, var(--couleur-noir) 45%, transparent));
    transition: background .35s ease;
}
.invest-card:hover .invest-card-img { transform: scale(1.05); }
.invest-card:hover::after { background: color-mix(in srgb, var(--couleur-noir) 55%, transparent); }

.invest-card-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--couleur-blanc);
    text-align: center;
    padding: 24px;
}
.invest-card-power {
    font-size: clamp(3rem, 5vw, 5rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -.03em;
    transition: transform .35s ease;
}
.invest-card-price {
    font-size: 18px;
    letter-spacing: -.02em;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .35s ease, transform .35s ease;
}
.invest-card:hover .invest-card-power { transform: translateY(-6px); }
.invest-card:hover .invest-card-price { opacity: 1; transform: none; }

.invest-card-cta {
    position: absolute;
    left: 50%;
    bottom: 24px;
    transform: translate(-50%, 12px);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--couleur-jaune);
    color: var(--couleur-blanc);
    border-radius: 999px;
    text-decoration: none;
    font-size: 15px;
    letter-spacing: -.02em;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .35s ease, transform .35s ease;
}
.invest-card:hover .invest-card-cta {
    opacity: 1;
    transform: translate(-50%, 0);
    pointer-events: auto;
}

/* ==== Tactile (état .is-active posé par le JS) ==== */
.invest-card.is-active .invest-card-img { transform: scale(1.05); }
.invest-card.is-active::after { background: color-mix(in srgb, var(--couleur-noir) 55%, transparent); }
.invest-card.is-active .invest-card-power { transform: translateY(-6px); }
.invest-card.is-active .invest-card-price { opacity: 1; transform: none; }
.invest-card.is-active .invest-card-cta {
    opacity: 1;
    transform: translate(-50%, 0);
    pointer-events: auto;
}
.invest-card-cta-ico {
    height: 10px;
}

.invest-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 40px;
    padding: 28px 0;
    border-top: 1px solid color-mix(in srgb, var(--couleur-noir) 12%, transparent);
    margin-bottom: 0;
}
.invest-links a {
    color: var(--couleur-noir);
    text-decoration: underline;
    text-underline-offset: 3px;
    font-size: 16px;
    letter-spacing: -.02em;
}
.invest-links a:hover { color: var(--couleur-vert); }
.invest-link-ico {
    height: 10px;
    transform: rotate(-45deg);
    filter: brightness(0);
}

.invest-note {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.5;
    letter-spacing: -.02em;
    color: #5b5b5b;
}

@media (max-width: 800px) {
    .invest-cards { grid-template-columns: 1fr; }
    .invest-links { flex-direction: column; align-items: center; text-align: center; }
}


/* ==== GARANTIES & ÉCOLOGIE ==== */
.garanties {
    background: var(--couleur-blanc);
    color: var(--couleur-noir);
}

.garanties-head {
    margin-bottom: 64px;
    text-align: right;
}


.garanties-title {
    font-size: 64px;
    font-weight: 400;
    letter-spacing: -.05em;
    line-height: 0.9;
    margin: 0;
}

.garanties-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 0 55px;
}

.garantie-card {
    position: relative;
    border-radius: 22px;
    overflow: hidden;
    aspect-ratio: 4 / 5;
    isolation: isolate;
}
.garantie-img {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    z-index: -2;
    transition: transform .6s ease;
}
.garantie-card::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(to bottom, color-mix(in srgb, var(--couleur-noir) 35%, transparent) 0%, color-mix(in srgb, var(--couleur-noir) 5%, transparent) 45%, transparent 70%);
}
.garantie-card:hover .garantie-img { transform: scale(1.04); }

.garantie-content {
    position: absolute;
    top: 0; left: 0; right: 0;
    padding: clamp(28px, 3vw, 44px);
    padding-top: clamp(38px, 3.5vw, 54px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--couleur-blanc);
}
.garantie-pill {
    display: inline-flex;
    padding: 8px 15px;
    background: var(--couleur-blanc);
    color: var(--couleur-vert);
    border-radius: 7px;
    font-size: 14px;
    letter-spacing: -.02em;
    margin-bottom: 24px;
}
.garantie-text {
    font-size: 15px;
    line-height: 1.5;
    margin: 0;
    max-width: 46ch;
}

@media (max-width: 800px) {
    .garanties-head { text-align: left; }
    .garanties-cards {
        grid-template-columns: 1fr;
        padding: 0;
    }
    .garantie-card { aspect-ratio: 3 / 4; }
}


/* ==== FAQ ==== */
.faq {
    background: var(--couleur-blanc);
    color: var(--couleur-noir);
    padding: 70px 100px;
}

.faq-grid {
    display: grid;
    grid-template-columns: minmax(280px, 360px) 1fr;
    gap: clamp(40px, 6vw, 90px);
    align-items: start;
}

.faq-aside {
    position: sticky;
    top: 40px;
}
.faq-title {
    font-size: 64px;
    font-weight: 400;
    letter-spacing: -.05em;
    line-height: 0.9;
    margin: 0 0 32px;
}

.faq-contact {
    background: var(--couleur-vert);
    color: var(--couleur-blanc);
    border-radius: 18px;
    padding: 28px;
}

.faq-contact-title {
    margin: 0 0 10px;
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -.03em;
}

.faq-contact-text {
    margin: 0 0 22px;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: -.02em;
    opacity: .85;
}

.faq-contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 24px;
    background: var(--couleur-blanc);
    color: var(--couleur-vert);
    border-radius: 999px;
    text-decoration: none;
    font-size: 16px;
    letter-spacing: -.02em;
    transition: transform .2s ease;
}
.faq-contact-btn:hover { transform: translateY(-2px); }

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--couleur-jaune-casse);
    border: 1px solid color-mix(in srgb, var(--couleur-noir) 10%, transparent);
    border-radius: 12px;
    overflow: hidden;
    transition: background .3s ease, border-color .3s ease;
}
.faq-item:hover { border-color: color-mix(in srgb, var(--couleur-noir) 25%, transparent); }

.faq-item.is-open {
    background: var(--couleur-vert);
    border-color: var(--couleur-vert);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 26px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    font-size: 18px;
    letter-spacing: -.02em;
    color: var(--couleur-noir);
    transition: color .3s ease;
}
.faq-item.is-open .faq-question { color: var(--couleur-blanc); }

.faq-icon {
    flex-shrink: 0;
    width: 22px; height: 22px;
    color: currentColor;
    transition: transform .35s ease;
}
.faq-item.is-open .faq-icon { transform: rotate(45deg); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
}
.faq-answer p {
    margin: 0;
    padding: 0 26px 26px;
    color: color-mix(in srgb, var(--couleur-blanc) 85%, transparent);
    font-size: 16px;
    letter-spacing: -.02em;
    line-height: 1.6;
}

@media (max-width: 850px) {
    .faq-grid { grid-template-columns: 1fr; }
    .faq-aside { position: static; }
}
@media (max-width: 700px) {
    .faq-question {
        padding: 18px 20px;
        font-size: 16px;
    }
    .faq-answer p {
        padding: 0 20px 20px;
    }
}

.final-cta-top:hover .final-cta-top-ico { transform: rotate(-90deg) translateX(3px); }


/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1024px) {
    /* ==== Comment ça marche ==== */
    .etapes-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        margin-bottom: 36px;
    }

    .etapes-intro {
        text-align: left;
    }

    .etapes-track {
        gap: 16px;
        margin-right: -32px;
    }

    .etape {
        flex: 0 0 88%;
        aspect-ratio: auto;
        display: flex;
        flex-direction: column;
        gap: 14px;
        padding: 12px;
        border: 1px solid var(--couleur-gris-clair);
        border-radius: 15px;
    }

    .etape-img {
        position: static;
        width: 100%;
        height: 240px;
        border-radius: 10px;
    }

    .etape-step {
        position: static;
        align-self: flex-end;
        background: var(--couleur-vert);
    }

    .etape-card {
        position: static;
        width: auto;
        padding: 0 4px 4px;
        background: transparent;
        border: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        color: var(--couleur-noir);
    }

    .etape-card-square {
        background: var(--couleur-noir);
    }

    .supports-grid {
        gap: 32px;
    }

    /* ==== Budget & aides ==== */
    .invest-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .invest-card {
        aspect-ratio: 16 / 7;
    }

    .invest-card-content {
        gap: 6px;
    }

    .invest-card-power {
        font-size: clamp(2.2rem, 6vw, 3rem);
    }

    .invest-card-cta {
        bottom: 18px;
    }

    .invest-title {
        font-size: clamp(40px, 6vw, 64px);
        white-space: normal;
    }
}


/* =========================================
   TABLETTE (768 → 1024)
   ========================================= */
@media (min-width: 768px) and (max-width: 1024px) {
    /* ==== Titres / intros ==== */
    .etapes-title,
    .solutions-title,
    .supports-title,
    .parcours-title,
    .brands-title,
    .invest-title,
    .garanties-title,
    .faq-title {
        font-size: clamp(38px, 5.2vw, 52px);
    }

    .etapes-intro,
    .solutions-intro,
    .brands-intro,
    .invest-intro {
        font-size: 18px;
    }

    /* ==== Supports & garanties ==== */
    .supports-grid,
    .garanties-cards {
        grid-template-columns: 1fr 1fr;
    }

    .garanties-cards {
        padding: 0;
    }

    /* ==== Notre accompagnement (frise en 2×2) ==== */
    .parcours-stage-wrap {
        overflow: visible;
    }

    .parcours.has-panel .parcours-stage-wrap {
        filter: none;
        opacity: 1;
    }

    .parcours-stage {
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 28px;
        min-width: 0;
        height: auto;
    }

    .parcours-line {
        display: none;
    }

    .parcours-node {
        position: static;
        transform: none;
        opacity: 1;
        transition-delay: 0s;
        width: 100%;
        flex-direction: row;
        align-items: center;
        gap: 16px;
        padding: 20px 4px;
        border-bottom: 1px solid var(--couleur-gris-clair);
    }

    .parcours-node::before {
        margin: 0;
        flex-shrink: 0;
    }

    .node-icon {
        display: none;
    }

    .node-label {
        flex: 1;
        margin: 0;
        font-size: 18px;
    }

    .node-info {
        margin-left: auto;
        opacity: .6;
    }
}


@media (max-width: 767px) {
    /* ==== Titres / eyebrows / intros — harmonisation générale ==== */
    .etapes-title,
    .solutions-title,
    .supports-title,
    .parcours-title,
    .brands-title,
    .invest-title,
    .garanties-title,
    .faq-title {
        font-size: clamp(40px, 8vw, 56px);
    }

    .etapes-intro,
    .solutions-intro,
    .brands-intro,
    .invest-intro {
        font-size: 19px;
    }

    .invest-title {
        white-space: normal;
    }

    /* ==== Hero ==== */
    .photovoltaique .hero-title {
        margin-bottom: 0;
    }

    /* ==== Du soleil à votre prise, simplement ==== */
    .etapes-track {
        margin-right: -24px;
    }

    /* ==== La solution adaptée à votre projet ==== */
    .solutions-head {
        margin-bottom: 32px;
    }

    .solutions-grid {
        flex-direction: column;
    }

    .solution,
    .solution.is-open,
    .solutions-grid.has-open .solution:not(.is-open) {
        flex-grow: 0;
        opacity: 1;
    }

    .solution-visual {
        aspect-ratio: 16 / 9;
    }

    /* ==== Sur quoi nous installons ==== */
    .supports-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .supports-visual {
        min-height: 260px;
    }

    /* ==== Notre accompagnement ==== */
    .parcours-head {
        margin-bottom: 32px;
    }

    .parcours-stage-wrap {
        overflow: visible;
    }

    .parcours.has-panel .parcours-stage-wrap {
        filter: none;
        opacity: 1;
    }

    .parcours-stage {
        min-width: 0;
        height: auto;
        display: flex;
        flex-direction: column;
    }

    .parcours-line {
        display: none;
    }

    .parcours-node {
        position: static;
        transform: none;
        opacity: 1;
        transition-delay: 0s;
        width: 100%;
        flex-direction: row;
        align-items: center;
        gap: 16px;
        padding: 20px 4px;
        border-bottom: 1px solid var(--couleur-gris-clair);
    }

    .parcours-node::before {
        margin: 0;
        flex-shrink: 0;
    }

    .node-icon {
        display: none;
    }

    .node-label {
        flex: 1;
        margin: 0;
        font-size: 18px;
    }

    .node-info {
        margin-left: auto;
        opacity: .6;
    }

    .panel-title {
        font-size: clamp(30px, 8vw, 44px);
    }

    .panel-text {
        margin-bottom: 32px;
        font-size: 16px;
    }

    /* ==== FAQ ==== */
    .faq {
        padding: 52px 24px;
    }

    .faq-title {
        margin-bottom: 24px;
    }

    .faq-contact {
        padding: 22px;
    }
}


@media (max-width: 480px) {
    .etapes-track {
        margin-right: -18px;
    }

    .etape {
        flex-basis: 92%;
    }

    .invest-cards {
        grid-template-columns: 1fr;
    }

    .invest-card {
        aspect-ratio: 16 / 10;
    }

    .invest-card-content {
        padding-bottom: 48px;
    }
}