/* ===================================
   STYLES OPTIMISÉS POUR FILTRES AVANCÉS
   Animation GPU-accélérée pour performance maximale
   =================================== */

/* Bouton toggle des filtres avancés */
.advanced-filters-toggle {
    margin: 20px 0;
    text-align: center;
}

.toggle-filters-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #3c90df 0%, #02144a 100%);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    will-change: transform, box-shadow;
}

.toggle-filters-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.toggle-filters-btn:active {
    transform: translateY(0);
}

.toggle-filters-btn .arrow-icon {
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 12px;
}

.toggle-filters-btn.active .arrow-icon {
    transform: rotate(180deg);
}

/* Conteneur des filtres avancés - VERSION OPTIMISÉE GPU */
.advanced-filters-container {
    max-height: 0;
    overflow: hidden;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.25s ease,
                transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0s linear 0.35s;
    will-change: max-height, opacity, transform;
}

.advanced-filters-container.show {
    max-height: 800px;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.25s ease 0.05s,
                transform 0.25s cubic-bezier(0.4, 0, 0.2, 1) 0.05s,
                visibility 0s linear 0s;
}

/* Optimisation: pas d'animation sur les éléments internes */
.advanced-filters-container > * {
    transform: none;
    opacity: 1;
    transition: none;
}