.background {
    position: fixed;
    inset: 0;
    z-index: -1; /* placer derrière tout le contenu */
    pointer-events: none; /* laisser les clics passer */
    height: 100%;
    padding: 0;
    margin: 0;
    background-image: url('../../../../assets/backgrounds/background-05.svg');
    background-size: cover;
    background-position: top;
}
.path-subnav {
    background-color: hsla(276, 100%, 10%, 0.75); 
}

/* ================================
   DESSIN TECHNIQUE - SPA STYLES
   Page principale et fragments
================================ */

/* ================================
   VUES / TRANSITIONS
================================ */

.dt-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px 72px;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.dt-view {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.dt-view-hidden {
    display: none;
    opacity: 0;
}

/* ================================
   HERO SECTION - DYNAMIC SCROLL
================================ */

.dt-hero {
    /* Variables CSS pilotées par JS pour l'effet de scroll */
    --hero-progress: 0;
    --hero-image-width: calc(100% - (100% - 300px) * var(--hero-progress));
    --hero-text-opacity: var(--hero-progress);
    --hero-text-translate: calc(20px * (1 - var(--hero-progress)));
    
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    min-height: 400px;
}

.dt-hero-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 40px;
    width: 100%;
    max-width: 900px;
    transition: gap 0.1s ease-out;
}

.dt-hero-image {
    flex: 0 0 auto;
    width: var(--hero-image-width);
    max-width: 100%;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: width 0.1s ease-out;
}

.dt-hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.dt-hero-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    opacity: var(--hero-text-opacity);
    transform: translateY(var(--hero-text-translate));
    transition: opacity 0.1s ease-out, transform 0.1s ease-out;
    pointer-events: none;
}

/* Activer les interactions quand le texte est visible */
.dt-hero.hero-scrolled .dt-hero-text {
    pointer-events: auto;
}

.dt-hero-text h1 {
    font-size: var(--txt-size-13);
    color: var(--txt-color-blackop-90);
    margin: 0;
}

.dt-hero-text p {
    font-size: var(--txt-size-09);
    color: var(--txt-color-blackop-70);
    line-height: 1.6;
    margin: 0;
}

/* ================================
   NAVIGATION SECTION
================================ */

.dt-navigation {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.dt-navigation h2 {
    margin: 0;
    color: var(--txt-color-blackop-50);
    font-weight: 400;
    font-size: var(--txt-size-10);
}

.dt-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.dt-nav-link {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 24px;
    background: var(--global-white-2);
    border: 2px solid var(--global-transparent-white-1);
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    transition: all 0.25s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.dt-nav-link:hover {
    background: var(--global-white-1);
    border-color: var(--subglobal-color-définitiontechnique);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}

.dt-nav-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--subglobal-color-définitiontechnique-light);
    border: 1px solid var(--subglobal-color-définitiontechnique);
    border-radius: 12px;
    color: var(--subglobal-color-définitiontechnique);
}

.dt-nav-icon svg {
    width: 24px;
    height: 24px;
}

.dt-nav-text {
    font-size: var(--txt-size-11);
    font-weight: 600;
    color: var(--txt-color-blackop-90);
}

.dt-nav-description {
    font-size: var(--txt-size-08);
    color: var(--txt-color-blackop-60);
}

/* ================================
   FRAGMENT SECTION
================================ */

.dt-fragment {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.dt-fragment-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dt-fragment-header h1 {
    font-size: var(--txt-size-13);
    color: var(--txt-color-blackop-90);
    margin: 0;
}

.dt-fragment-header p {
    font-size: var(--txt-size-09);
    color: var(--txt-color-blackop-60);
    margin: 0;
}

.dt-back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: var(--txt-size-09);
    color: var(--button-global-color);
    text-decoration: none;
    margin-bottom: 16px;
    transition: opacity 0.2s ease;
}

.dt-back-link:hover {
    opacity: 0.7;
}

.dt-content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.dt-content-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--global-white-2);
    border: 2px solid var(--global-transparent-white-1);
    border-radius: 14px;
    text-decoration: none;
    color: inherit;
    transition: all 0.25s ease;
}

.dt-content-card:hover {
    background: var(--global-white-1);
    border-color: white;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.9);
    filter: saturate(2);
}

.dt-content-card-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--subglobal-color-définitiontechnique-light);
    border: 1px solid var(--subglobal-color-définitiontechnique);
    border-radius: 10px;
}

.dt-content-card-icon img {
    width: 60%;
    height: 60%;
    object-fit: contain;
}

.dt-content-card-label {
    font-size: var(--txt-size-09);
    font-weight: 500;
    text-align: center;
    color: var(--txt-color-blackop-85);
}

/* ================================
   RESPONSIVE
================================ */

@media (max-width: 768px) {
    .dt-page {
        padding: 32px 16px 60px;
    }
    
    .dt-hero {
        /* Sur mobile, l'image passe de 100% à 220px */
        --hero-image-width: calc(100% - (100% - 220px) * var(--hero-progress));
    }
    
    .dt-hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .dt-hero-text {
        align-items: center;
    }
    
    .dt-nav-grid {
        grid-template-columns: 1fr;
    }
}