/* Wrapper principal */
.layout-wrapper {
    width: 95%;
    max-width: 520px;
    margin: auto;
    padding: 2rem 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    transition: max-width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.layout-wrapper.has-sidebar {
    max-width: 1100px;
}

.layout-wrapper.hidden {
    display: none;
}

/* Contenu divisé en deux colonnes */
.layout-content-split {
    display: flex;
    gap: var(--spacing-lg);
    width: 100%;
    align-items: flex-start;
}

.layout-content-split .content-area {
    flex: 1;
    width: 100%;
    max-width: 650px;
}

/* Sidebar droite */
.preview-sidebar {
    flex: 1.2;
    min-width: 350px;
    background: rgba(15, 23, 42, 0.4);
    border-left: 1px solid var(--color-border);
    margin-left: 0;
    padding: var(--spacing-lg);
    height: 100%;
    display: flex;
    flex-direction: column;
    animation: slideInRight 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.preview-sidebar.hidden {
    display: none;
}

.sidebar-header {
    margin-bottom: var(--spacing-md);
}

.sidebar-header h3 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.sidebar-header p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.scroll-area {
    max-height: 500px;
    overflow-y: auto;
    padding-right: 8px;
    margin-bottom: var(--spacing-md);
}

.scroll-area::-webkit-scrollbar { width: 4px; }
.scroll-area::-webkit-scrollbar-track { background: transparent; }
.scroll-area::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 10px;
}

/* Conteneur app */
.app-container {
    width: 100%;
    padding: var(--spacing-lg);
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Zone de défilement chargement */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.loading-overlay.hidden {
    display: none;
}

.loading-content {
    width: 90%;
    max-width: 380px;
    padding: 2.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.loading-content h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
}

.loading-content p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 900px) {
    .layout-content-split {
        flex-direction: column;
        align-items: center;
    }

    .preview-sidebar {
        border-left: none;
        border-top: 1px solid var(--color-border);
        width: 100%;
        margin-top: var(--spacing-lg);
    }
}

@media (max-width: 600px) {
    body {
        padding: 1rem 0;
        align-items: flex-start;
    }

    .layout-wrapper {
        width: 95%;
    }

    .glass-panel {
        padding: var(--spacing-md);
    }

    .logo-icon {
        width: 100px;
        height: 100px;
    }

    h1 {
        font-size: 1.25rem;
    }
}