.schematics-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.sidebar-filters {
    background: var(--element-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    height: fit-content;
    position: sticky;
    top: 90px; /* Ajustado para que no se solape con el header de 70px + margen */
    z-index: 10; /* Valor bajo para permitir que los dropdowns del header pasen por encima */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.filter-group {
    margin-bottom: 35px;
}

.filter-section {
    margin-bottom: 35px;
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-main);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0.8;
}

.filter-section-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-main);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0.8;
}

.search-input-wrapper {
    position: relative;
    margin-bottom: 0;
}

.sidebar-search {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 15px 12px 42px;
    color: var(--text-main);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.sidebar-search:focus {
    border-color: var(--primary-blue);
    background: rgba(0, 0, 0, 0.3);
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.search-icon-sidebar {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- ÁRBOL DE VERSIONES --- */
.version-tree-container {
    max-height: 400px;
    overflow-y: auto;
    padding-right: 5px;
}

.version-tree-item {
    margin-bottom: 2px;
}

.version-parent {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
    user-select: none;
    color: var(--text-main);
}

.version-parent:hover {
    background: rgba(255, 255, 255, 0.05);
}

.version-parent i.toggle-icon {
    width: 14px;
    transition: transform 0.3s;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.version-parent.expanded i.toggle-icon {
    transform: rotate(90deg);
}

.version-children {
    display: none;
    padding-left: 28px;
    margin-top: 2px;
}

.version-parent.expanded + .version-children {
    display: block;
}

.version-child {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: all 0.2s;
}

.version-child:hover {
    background: rgba(88, 229, 75, 0.1);
    color: #58E54B;
}

.version-child.selected {
    background: rgba(28, 101, 229, 0.1); /* Fondo azul suave al estar seleccionado */
    color: var(--text-main);
    font-weight: 600;
}

/* Checkbox Personalizado */
.custom-checkbox-v {
    position: relative;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.v-checkbox-input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.v-checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 18px;
    width: 18px;
    background-color: transparent;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.2s;
}

.version-child:hover .v-checkmark {
    border-color: #1C65E5;
}

.v-checkbox-input:checked ~ .v-checkmark {
    background-color: #1C65E5;
    border-color: #1C65E5;
}

.v-checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.v-checkbox-input:checked ~ .v-checkmark:after {
    display: block;
}

/* Indicador de Rango */
.version-range-info {
    margin-top: 25px;
    padding: 12px 15px;
    background: rgba(88, 229, 75, 0.1);
    border: 1px dashed #58E54B;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: #58E54B;
}

.btn-clear-mini {
    background: none;
    border: none;
    color: #ed4245;
    cursor: pointer;
    padding: 4px;
    font-size: 1rem;
}

.btn-clear-mini:hover {
    transform: scale(1.1);
}

.selection-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: block;
}

.sort-select {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    color: var(--text-main);
    font-size: 0.9rem;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%238c97ad'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
}

.sort-select:focus {
    border-color: var(--primary-blue);
    background-color: rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.btn-apply-filters {
    width: 100%;
    margin-top: 25px;
    padding: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 10px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.btn-apply-filters:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(88, 229, 75, 0.3);
}

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

/* Botón de Favoritos (Estrella) */
.btn-fav-star {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
}

/* Mostrar al pasar el ratón por la tarjeta (mod-card) */
.mod-card:hover .btn-fav-star {
    opacity: 1;
    visibility: visible;
}

/* La estrella activa siempre es visible de forma estática */
.btn-fav-star.active {
    opacity: 1;
    visibility: visible;
    background: rgba(255, 193, 7, 0.2);
    border-color: rgba(255, 193, 7, 0.5);
}

.btn-fav-star:hover {
    transform: scale(1.15);
    background: rgba(0, 0, 0, 0.8);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-fav-star.active:hover {
    background: rgba(255, 193, 7, 0.3);
    border-color: rgba(255, 193, 7, 0.6);
}

.btn-fav-star:active {
    transform: scale(0.9);
}

.btn-fav-star i {
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.btn-fav-star.active {
    background: rgba(255, 193, 7, 0.15);
    border-color: rgba(255, 193, 7, 0.4);
}

.btn-fav-star.active i {
    color: #ffc107;
    filter: drop-shadow(0 0 5px rgba(255, 193, 7, 0.6));
}

@keyframes starPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.4); }
    100% { transform: scale(1.15); }
}

.btn-fav-star.animating i {
    animation: starPop 0.4s ease-out;
}

/* Clases para renderizado dinámico */
.schematic-img-container {
    width: 100%;
    height: 180px;
    object-fit: contain; /* Cambiado de cover a contain para ver la foto completa */
    border-radius: 8px;
    margin-bottom: 1rem;
    background: #000; /* Fondo negro para rellenar si la imagen no es 16:9 */
}

.schematic-img-container.placeholder {
    object-fit: contain;
    background: var(--bg-color);
}

.mod-footer-flex {
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: #58E54B;
}

.author-link-flex {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}

.author-avatar-mini {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.1);
    object-fit: cover;
}

.version-badge-schematic {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.btn-details-full {
    width: 100%;
    margin-top: 1rem;
    background: #2563eb;
    color: white;
    border: none;
    padding: 0.6rem;
    border-radius: 6px;
    cursor: pointer;
}

.no-results-msg {
    color: #8c97ad;
    text-align: center;
    width: 100%;
    padding: 50px;
}

@media (max-width: 992px) {
    .schematics-layout {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 12px;
    }

    .sidebar-filters {
        position: static;
        width: 100%;
        margin: 0 auto;
    }

    .schematics-main-area {
        width: 100%;
        margin: 0 auto;
    }
}

@media (max-width: 700px) {
    .schematics-layout {
        padding: 8px;
    }

    .sidebar-filters {
        padding: 16px;
        border-radius: 10px;
    }

    .section-header {
        text-align: center;
    }

    .mods-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        justify-items: center;
    }

    .mod-card {
        width: 100%;
        max-width: 520px;
    }
}