@import url('https://fonts.googleapis.com/css2?family=Roboto+Mono:ital,wght@0,100..700;1,100..700&display=swap');

*{
    padding:0; margin: 0;
    box-sizing: border-box;
}

:root{
    --sidebar-color: #0A0A0A;
    --btn-sidebar-color: #1d1d1d; /*#131313*/
    --txt-sidebar-color: #9c9c9c;
    --txt-sidebar-color-hover: var(--divisor-color);

    --main-color: #0A0A0A;
    --font-main: 'Roboto Mono', monospace;
    
    --divisor-color: #1FD1F5;
    --cool-blue: #1FD1F5;
}


html, body{
    background-color: var(--main-color);
    width: 100%; height: 100vh;     
    overflow: hidden;
}

body{
    display: grid; font-family: var(--font-main);
    grid-template-columns: 250px 1fr;
}

.sidebar{
    background-color: var(--sidebar-color);
    height: 100vh; display: flex; margin-top: 20px;
    justify-content: center; font-family: var(--font-main);
    padding-left: 25px;
}


.divisor{
    margin-top: 20px; margin-bottom: 20px;
    height: calc(100vh - 40px); width: 3px;
    background-color: var(--divisor-color);
    z-index: 10;
    box-shadow: 0 0 10px var(--divisor-color), 0 0 20px var(--divisor-color);
}

.main-contend{
    background-color: var(--main-color);
    overflow-y: auto;
}

.nav-button{
    font-family: var(--font-main);
    background-color: var(--btn-sidebar-color); 
    color: var(--txt-sidebar-color); border: none;
    height: 50px; width: 200px;
    display: inline-flex; flex-direction: column;
    justify-content: center; align-items: flex-start;
    padding: 20px; transition:all 0.3s ease;
    margin-bottom: 10px;
    border: 1px solid var(--btn-sidebar-color);

    clip-path: polygon(0 0, 100% 0, 100% 100%, 15px 100%, 0 calc(100% - 15px));
}

.nav-button.active,
.nav-button:hover {
    color: var(--txt-sidebar-color-hover);
}
.nav-button:focus{
    color: var(--txt-sidebar-color-hover);
    border: 1px solid var(--cool-blue);
}

.page {display: none;}
.page.active {display: block;}