/* Landing page */
html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background-color: var(--black-color);
    color: var(--white-color);
    overflow-x: hidden;
}

/* Grille en fond (lignes tous les 48px, centrée) */
.grid-overlay {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(color-mix(in srgb, var(--main-color) 30%, transparent) 1px, transparent 1px),
        linear-gradient(90deg, color-mix(in srgb, var(--main-color) 30%, transparent) 1px, transparent 1px);
    background-size: 48px 48px;
    background-position: center;
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1), rgba(0,0,0,0) 90%);
            mask-image: linear-gradient(to bottom, rgba(0,0,0,1), rgba(0,0,0,0) 90%);
}

/* Courants electriques : points de lumiere bleus qui filent le long de la grille */
.circuit {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.spark {
    position: absolute;
    border-radius: 8px;
    pointer-events: none;
}

.spark-h {
    top: var(--pos, 96px);
    left: -128px;
    width: 156px;
    height: 2px;
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--main-color) 80%, transparent));
    box-shadow: 0 0 8px color-mix(in srgb, var(--main-color) 80%, transparent);
    animation: run-h var(--dur, 6s) linear var(--delay, 0s) infinite;
}

.spark-v {
    left: var(--pos, 240px);
    top: -128px;
    width: 2px;
    height: 156px;
    background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--main-color) 80%, transparent));
    box-shadow: 0 0 8px color-mix(in srgb, var(--main-color) 80%, transparent);
    animation: run-v var(--dur, 7s) linear var(--delay, 0s) infinite;
}

/* Ligne de la grille, vitesse et decalage de chaque etincelle */
.circuit .spark:nth-child(1) { --pos: calc(50% - 168px); --dur: 6s; --delay: -1s; }
.circuit .spark:nth-child(2) { --pos: calc(50% - 72px);  --dur: 8s; --delay: -4s; }
.circuit .spark:nth-child(3) { --pos: calc(50% + 24px);  --dur: 7s; --delay: -2s; }
.circuit .spark:nth-child(4) { --pos: calc(50% + 120px); --dur: 9s; --delay: -6s; }
.circuit .spark:nth-child(5) { --pos: calc(50% - 216px); --dur: 8s; --delay: -3s; }
.circuit .spark:nth-child(6) { --pos: calc(50% - 72px);  --dur: 6s; --delay: -1s; }
.circuit .spark:nth-child(7) { --pos: calc(50% + 72px);  --dur: 9s; --delay: -5s; }
.circuit .spark:nth-child(8) { --pos: calc(50% + 216px); --dur: 7s; --delay: -2s; }

@keyframes run-h {
    0%   { left: -128px; opacity: 0; }
    8%   { opacity: 1; }
    92%  { opacity: 1; }
    100% { left: 100%;  opacity: 0; }
}
@keyframes run-v {
    0%   { top: -128px; opacity: 0; }
    8%   { opacity: 1; }
    92%  { opacity: 1; }
    100% { top: 100%;  opacity: 0; }
}

/* Conteneur centré */
.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* =========================== BOUTONS =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: .3s;
}

.btn-primary {
    background: var(--main-color);
    color: var(--black-color);
    box-shadow: 0 0 16px color-mix(in srgb, var(--main-color) 50%, transparent);
}

.btn-primary:hover {
    transform: scale(1.04);
    box-shadow: 0 0 32px color-mix(in srgb, var(--main-color) 50%, transparent);
}

.btn-ghost {
    background: transparent;
    color: var(--white-color);
    border-color: color-mix(in srgb, var(--white-color) 15%, transparent);
}

.btn-ghost:hover {
    background: color-mix(in srgb, var(--white-color) 15%, transparent);
    border-color: color-mix(in srgb, var(--white-color) 30%, transparent);
    transform: scale(1.04);
}

/* =========================== EN-TÊTE =========================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: .3s;
    border-bottom: 1px solid transparent;
}

/* Fond sombre translucide */
.header.is-scrolled {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: color-mix(in srgb, var(--black-color) 80%, transparent);
    border-bottom-color: color-mix(in srgb, var(--white-color) 8%, transparent);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.brand img { 
    width: 48px; 
    height: 48px; 
    border-radius: 8px; 
}

.brand-name { 
    font-size: 24px; 
    font-weight: 800; 
    color: var(--white-color); 
}

.menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.menu > a {
    color: var(--grey-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: .3s;
}

.menu > a:hover { 
    color: var(--main-color); 
}

.menu > a.active { 
    color: var(--main-color); 
}

.menu-actions { 
    display: flex; 
    align-items: center; 
    gap: 12px; 
}

/* Bouton hamburger -> croix : 3 barres animees par position (top) + rotation */
.burger {
    display: none;
    position: relative;
    width: 48px;
    height: 48px;
    padding: 0;
    border: none;
    border-radius: 8px;
    background: color-mix(in srgb, var(--white-color) 8%, transparent);
    cursor: pointer;
    z-index: 120;
}

.burger span {
    position: absolute;
    left: 8px;
    right: 8px;
    height: 2px;
    background: var(--white-color);
    border-radius: 8px;
    transition: .3s;
}

.burger span:nth-child(1) { top: 16px; }
.burger span:nth-child(2) { top: 24px; }
.burger span:nth-child(3) { top: 32px; }
.burger.is-active span:nth-child(1) { top: 24px; transform: rotate(45deg); }
.burger.is-active span:nth-child(2) { opacity: 0; }
.burger.is-active span:nth-child(3) { top: 24px; transform: rotate(-45deg); }

.nav-backdrop {
    position: fixed;
    inset: 0;
    opacity: 0;
    visibility: hidden;
}

/* Bouton remonter en haut */
.scroll-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 8px;
    background: var(--main-color);
    color: var(--black-color);
    font-size: 18px;
    cursor: pointer;
    box-shadow: 0 0 16px color-mix(in srgb, var(--main-color) 50%, transparent);
    opacity: 0;
    visibility: hidden;
    transition: .3s;
    z-index: 90;
}

.scroll-top.is-visible { 
    opacity: 1; 
    visibility: visible; 
}

.scroll-top:hover { 
    transform: scale(1.04); 
    box-shadow: 0 0 28px color-mix(in srgb, var(--main-color) 80%, transparent); 
}

/* =========================== HERO =========================== */
.main { 
    position: relative; 
    z-index: 1; 
}

.hero { 
    padding: 160px 0 80px; 
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 56px;
    align-items: center;
}

.hero-title {
    font-size: 52px;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 16px;
    line-height: 1.7;
    color: var(--grey-color);
    max-width: 520px;
    margin-bottom: 32px;
}

.hero-visual { 
    position: relative; 
}

.hero-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0 80px color-mix(in srgb, var(--main-color) 50%, transparent);
}

.hero-card img { 
    display: block; 
    width: 100%; 
    height: auto; 
}

.hero-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 30%, color-mix(in srgb, var(--main-color) 50%, transparent) 100%);
    pointer-events: none;
}

/* =========================== BANDEAU CHIFFRES =========================== */
.stats-band { 
    padding: 24px 0; 
}

.stats-grid {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 28px 32px;
    border-radius: 8px;
    background: color-mix(in srgb, var(--white-color) 4%, transparent);
    border: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: var(--main-color);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 13px;
    color: var(--grey-color);
    line-height: 1.4;
}

/* =========================== SECTIONS GÉNÉRIQUES =========================== */
.section {
    padding: 80px 0;
    scroll-margin-top: 96px;
}

.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}

.eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--main-color);
    margin-bottom: 12px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
}

.section-sub {
    font-size: 16px;
    line-height: 1.7;
    color: var(--grey-color);
}

/* =========================== FONCTIONNALITÉS =========================== */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature {
    position: relative;
    z-index: 1;
    height: 100%;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 32px 24px;
    border-radius: 8px;
    background: color-mix(in srgb, var(--white-color) 4%, transparent);
    border: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 8px;
    background: color-mix(in srgb, var(--main-color) 15%, transparent);
    color: var(--main-color);
    font-size: 24px;
    margin-bottom: 16px;
}

.feature h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--grey-color);
}

/* =========================== ÉTAPES =========================== */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.step {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: relative;
    padding: 32px 24px;
    border-radius: 8px;
    background: color-mix(in srgb, var(--white-color) 4%, transparent);
    border: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
}

.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--main-color);
    color: var(--black-color);
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 16px;
    box-shadow: 0 0 20px color-mix(in srgb, var(--main-color) 50%, transparent);
}

.step h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--grey-color);
}

/* =========================== DEUX PUBLICS =========================== */
.audience {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.aud-card {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 32px 24px;
    border-radius: 8px;
    background: color-mix(in srgb, var(--white-color) 4%, transparent);
    border: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
}

.aud-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 8px;
    background: color-mix(in srgb, var(--main-color) 15%, transparent);
    color: var(--main-color);
    font-size: 26px;
    margin-bottom: 20px;
}

.aud-card h2 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 4px;
}

.aud-card > p {
    font-size: 16px;
    color: var(--grey-color);
    margin-bottom: 20px;
}

.list {
    list-style: none;
    margin: 0 0 28px;
    padding: 0;
}

.list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--grey-color);
    padding: 8px 0;
    border-bottom: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
}

.list li:last-child {
    border-bottom: none;
}

.list li i {
    color: var(--main-color);
    margin-top: 4px;
}

/* =========================== FAQ =========================== */
.faq {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 8px;
    background: color-mix(in srgb, var(--white-color) 4%, transparent);
    border: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
    transition: .3s;
}

.faq-item[open] {
    border-color: color-mix(in srgb, var(--main-color) 30%, transparent);
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 700;
    color: var(--white-color);
    cursor: pointer;
    list-style: none;
}

.faq-item summary i {
    color: var(--main-color);
    font-size: 14px;
    transition: .3s;
}

.faq-item[open] summary i {
    transform: rotate(180deg);
}
.faq-answer {
    padding: 0 24px 20px;
}
.faq-answer p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--grey-color);
}

/* =========================== CTA FINAL =========================== */
.cta {
    padding: 40px 0 96px;
}

.cta-box {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    text-align: center;
    padding: 64px 32px;
    border-radius: 8px;
    background:
        radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--main-color) 30%, transparent) 0%, transparent 70%);
    border: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
}

.cta-box h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-box p {
    font-size: 16px;
    color: var(--grey-color);
    margin-bottom: 28px;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

/* =========================== PIED DE PAGE =========================== */
.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
    padding-top: 48px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 32px;
    padding-bottom: 32px;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand p {
    margin-top: 12px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--grey-color);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 24px;
}
.footer-links a {
    color: var(--grey-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: .3s;
}

.footer-links a:hover {
    color: var(--main-color);
}

.footer-bottom a {
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-align: center;
    padding: 20px 24px;
    border-top: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
    font-size: 13px;
    color: color-mix(in srgb, var(--white-color) 50%, transparent);
}

/* Responsive */
@media (max-width: 1200px) {
    .burger {
        display: block;
    }

    .menu {
        position: fixed;
        top: 0;
        bottom: 0;
        right: -248px;
        width: 248px;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 96px 24px 24px;
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        background: color-mix(in srgb, var(--black-color) 50%, transparent);
        border-left: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
        transition: .3s;
        z-index: 110;
    }

    .menu.is-open {
        right: 0;
    }

    .header.is-scrolled {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: transparent;
        border-bottom-color: transparent;
    }

    .menu > a {
        padding: 16px 0;
        font-size: 16px;
        border-bottom: 1px solid color-mix(in srgb, var(--white-color) 8%, transparent);
    }

    .menu-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        margin-top: auto;
    }

    .menu-actions .btn {
        width: 100%;
    }

    .nav-backdrop {
        z-index: 105;
        background: color-mix(in srgb, var(--black-color) 80%, transparent);
        transition: .3s;
    }

    .nav-backdrop.is-open {
        opacity: 1;
        visibility: visible;
    }
}

@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero {
        padding: 128px 0 60px;
    }

    .hero-sub {
        margin-inline: auto;
    }

    .hero-copy {
        text-align: center;
    }

    .hero-visual {
        max-width: 460px;
        margin: 0 auto;
    }

    .features {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }
}

@media (max-width: 768px) {
    .steps {
        grid-template-columns: 1fr;
    }

    .audience {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 60px 0;
    }

    .hero-title {
        font-size: 40px;
    }

    .section-title, .cta-box h2 {
        font-size: 30px;
    }
}

@media (max-width: 576px) {
    .features {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .cta-actions .btn {
        width: 100%;
    }

    .hero-title {
        font-size: 34px;
    }

    .section-title, .cta-box h2 {
        font-size: 26px;
    }
}