:root {
    --mencats__sidebar-width: 300px;
    --bg-primary: #ffffff;
    --bg-secondary: #f9f9f9;
    --accent-color: #6699cc;
    --text-color: #333;
    --border-color: #667;
    --transition-speed: 0.3s;
}

/* body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; } */

/* Sidebar Layout */
.mencats__sidebar {
    position: fixed;
    top: 0;
    left: -100%; /* Oculto inicialmente */
    height: 100vh;
    z-index: 1000;
    transition: left var(--transition-speed) ease;
}

.mencats__sidebar--open { left: 0; }

.mencats__sidebar__container {
    display: flex;
    height: 100%;
    filter: drop-shadow(5px 0 15px rgba(0,0,0,0.1));
}

/* Paneles */
.mencats__sidebar__panel {
    width: var(--mencats__sidebar-width);
    height: 100%;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.mencats__sidebar__panel--secondary {
    background: var(--bg-secondary);
    position: absolute;
    left: var(--mencats__sidebar-width);
    top: 0;
    transform: translateX(-20px);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
    z-index: -1;
}

/* Estado Activo del Segundo Panel */
.mencats__sidebar--mencats__secondary-active .mencats__sidebar__panel--secondary {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}

/* Elementos de Lista */
.mencats__sidebar__header {
  padding: 20px 10px 20px 20px;
  font-weight: bold;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mencats__sidebar__close {
    background: transparent;
    border: none;
    color: #667;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 6px;
}

.mencats__sidebar__close:hover {
    background: #f0f0f0;
    color: var(--accent-color);
}

.mencats__sidebar__list {
    list-style: none;
    margin: 0;
    padding: 0;
    overflow-y: auto;
}

.mencats__sidebar__item { border-bottom: 1px solid #f5f5f5; }

.mencats__sidebar__link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.1em;
    padding: 15px 20px;
    text-decoration: none;
    color: var(--text-color);
    transition: background 0.2s;
}

.mencats__sidebar__link:hover { background: #f0f0f0; color: var(--accent-color); }

.mencats__sidebar__link > a {
    flex-grow: 1;
    cursor: pointer;
}

/*
.mencats__sidebar__link > div {
    padding: 1.1em;
}
*/

/* Flechas */
.icon-arrow {
    cursor: pointer;
    width: 10px;
    height: 10px;
    border-top: 2px solid #667;
    border-right: 2px solid #667;
    transform: rotate(45deg);
    transition: transform 0.3s;
}

.icon-arrow:hover {
    background: #f0f0f0;
    color: var(--accent-color);
}

.icon-arrow--down { transform: rotate(135deg); }
.mencats__sidebar__item--open .icon-arrow--down { transform: rotate(-45deg); }

/* Acordeón Nivel 3 */
.mencats__sidebar__accordion {
    max-height: 0;
    overflow: hidden;
    background: #fff;
    transition: max-height var(--transition-speed) ease-out;
}

.mencats__sidebar__sublink {
    display: block;
    padding: 12px 40px;
    text-decoration: none;
    color: #667;
    font-size: 0.9em;
}

.mencats__sidebar__sublink:hover { color: var(--accent-color); }

/* Overlay */
.mencats__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    z-index: 900;
}
.mencats__overlay--show { display: block; }

/* Responsive móvil */
@media (max-width: 888px) {
    .mencats__sidebar {
        width: 100vw;
    }

    .mencats__sidebar__container {
        width: 100vw;
        position: relative;
    }

    .mencats__sidebar__panel {
        width: 100vw;
    }

    .mencats__sidebar__panel--primary {
        z-index: 1;
    }

    .mencats__sidebar__panel--secondary {
        left: 0;
        top: 0;
        width: 100vw;
        transform: translateX(100%);
        z-index: 2;
    }

    .mencats__sidebar--mencats__secondary-active .mencats__sidebar__panel--secondary {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }
}