/* Variables de sidebar */
:root {
    --sidebar-width: 300px;
    --sidebar-width-mobile: 250px;
    --sidebar-transition: 0.3s ease;
}

/* Contenedor principal del sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: calc(-1 * var(--sidebar-width));
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--gradient-primary);
    color: var(--white);
    transition: left var(--sidebar-transition);
    z-index: 1000;
    box-shadow: 4px 0 10px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
}

.sidebar.active {
    left: 0;
}

/* Encabezado del sidebar */
.sidebar-header {
    padding: 2rem;
    text-align: center;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 1.8rem;
    color: var(--accent-color);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    margin: 0;
}

/* Menú de navegación */
.sidebar-menu {
    list-style: none;
    padding: 1rem 0;
    margin: 0;
}

.sidebar-menu li {
    margin: 0.5rem 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 1rem 2rem;
    color: var(--white);
    text-decoration: none;
    transition: all var(--sidebar-transition);
    position: relative;
}

.sidebar-menu a:hover,
.sidebar-menu a:focus {
    background: rgba(255, 255, 255, 0.1);
    padding-left: 2.5rem;
    outline: none;
}

.sidebar-menu i {
    margin-right: 1rem;
    font-size: 1.2rem;
    color: var(--accent-color);
    transition: transform var(--sidebar-transition);
}

/* Botón de toggle */
.sidebar-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.8rem;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--sidebar-transition);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover,
.sidebar-toggle:focus {
    background: var(--secondary-color);
    transform: scale(1.1);
    outline: none;
}

.sidebar-toggle i {
    font-size: 1.2rem;
    transition: transform var(--sidebar-transition);
}

.sidebar-toggle.active i {
    transform: rotate(180deg);
}

/* Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--sidebar-transition);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Contenido principal */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 20px;
    transition: margin-left var(--sidebar-transition);
}

/* Ajuste del contenido principal cuando el sidebar está activo */
.main-content.sidebar-active {
    margin-left: var(--sidebar-width);
}

/* Media queries */
@media (max-width: 768px) {
    .sidebar {
        width: var(--sidebar-width-mobile);
        left: calc(-1 * var(--sidebar-width-mobile));
    }
    
    .sidebar-header h2 {
        font-size: 1.5rem;
    }
    
    .sidebar-menu a {
        padding: 0.8rem 1.5rem;
    }

    .main-content {
        margin-left: 0;
    }

    .main-content.sidebar-active {
        margin-left: var(--sidebar-width-mobile);
    }
}