:root {
    /* Colours to use */
    --bg: #eee;
    --top-bar-color-bg: #692d94;
    --left-nav-color-bg: #d7a1f9;

    --left-nav-item-color-bg: #c576f6;
    --left-nav-item-color-text: black;
    --left-nav-item-color-border: #c576f6;

    --left-nav-item-color-hover-bg: #bc61f5;
    --left-nav-item-color-hover-text: black;
    --left-nav-item-color-hover-border: #692d94;

    --box-shadow: #a0a0a0;
    --underline-global: #d7a1f9;
    
    --color1: #016064;
    --color2: #48AAAD;
    --color4:  #82EEFD;
    --black-color: black;
    --white-color: white;

    /* 
    #d7a1f9
    #ce8cf8
    #c576f6
    #bc61f5
    #b24bf3
    #a020f0
    #9417e2
    #880ed4
    #7921b1
    #692d94
    #613385
    #6c0ba9
    #593876
    #51087e
    #461257
    #3a1b2f
    
    */
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html, body {
    height: 100%;
    font-family: Arial, sans-serif;
}

/* ------- Grid container setup ---------- */
.overview {
    display: grid;
    grid-template-columns: 250px 1fr;
    grid-template-rows: 50px 1fr;
    grid-template-areas: 
        "top-bar top-bar"
        "left-nav main-area";
    height: 100vh;
    background-color: var(--bg);
}

/* ----------- Top Bar ----------- */
.top-bar-container {
    grid-area: top-bar;
    height: 50px;
    padding-left: 15px;
    padding-right: 35px;
    display: grid;
    grid-template-columns: 90% 1fr;
    background-color: var(--top-bar-color-bg);
    color: var(--white-color);
    z-index: 10;
}
.top-bar-col {
    height: 50px;
    padding-left: 15px;
    padding-right: 15px;
    align-content: center;
}
.login-btn {
    height: 50px;
    font-size: 20px;
    align-content: center;
    justify-self: end;
}
.login-btn:hover {
    color: var(--black-color);
    cursor: pointer;
}

/* ------------- Left Navigation Bar ----------- */
.left-nav {
    grid-area: left-nav;
    background-color: var(--left-nav-color-bg);
    padding-top: 30px;
    padding-left: 10px;
    padding-right: 15px;
    display: flex;
    flex-direction: column;
}
.left-nav div {
    padding: 10px;
    background-color: var(--left-nav-item-color-bg);
    border-bottom: 3px solid var(--left-nav-item-color-border);
    margin: 5px;
}
.left-nav div:hover {
    background-color: var(--left-nav-item-color-hover-bg);
    border-bottom: 3px solid var(--left-nav-item-color-hover-border);
    cursor: pointer;
    margin: 5px
}
.nav-items {
    color: var(--left-nav-item-color-text);
}
/* Main Area */
.main-area {
    grid-area: main-area;
    display: grid;
    grid-template-rows: 50px 150px 1fr;
    row-gap: 20px;
    padding: 20px;
}
.grid-row-1 {
    display: grid;
}
.grid-row-2 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.grid-row-3 {
    display: grid;
    grid-template-columns: 75% 1fr;
    gap: 20px;
}
.overall-filter-container{
    height: 50px;
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: 0px 0px 5px var(--box-shadow);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 20px;
}

.sales-data-summary-container {
    display: grid;
    grid-template-rows: 50px 1fr;
    background-color: var(--white-color);
    box-shadow: 0px 0px 5px var(--box-shadow);
    border-radius: 8px;
    border-left: 7px solid var(--top-bar-color-bg);
    padding: 10px;
}
.sales-data-summary-row-1 {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 25px;
    text-decoration: underline solid var(--underline-global) 2px;
}
.sales-data-summary-row-2 {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 50px;
}

.sales-container{
    display: grid;
    grid-template-rows: 50px 1fr;
    gap: 10px;
    padding: 5px;
    background-color: var(--white-color);
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0px 0px 5px var(--box-shadow);
}
.sales-row-1{
    height: 50px;
    font-size: 40px;
    border-bottom: 2px solid var(--color1);
}
.sales-row-2{
    display: grid;
    grid-template-columns: 70% 1fr;
    gap: 10px;
    padding: 10px;
}
.sales-col-1{
    border: 1px solid var(--color2);
    font-size: 20px;
    border-radius: 8px;
}
.sales-col-2{
    border: 1px solid var(--color2);
    font-size: 20px;
    border-radius: 8px;
}

.stock-container{
    display: grid;
    grid-template-rows: 50px 1fr 1fr 1fr;
    gap: 20px;
    padding: 5px;
    background-color: var(--white-color);
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0px 0px 5px var(--box-shadow);
}
.stock-row-1{
    height: 50px;
    font-size: 40px;
    border-bottom: 2px solid var(--color1);
}
.stock-row-2{
    border: 1px solid var(--color2);
    font-size: 20px;
    border-radius: 8px;
}
.stock-row-3{
    border: 1px solid var(--color2);
    font-size: 20px;
    border-radius: 8px;
}
.stock-row-4{
    border: 1px solid var(--color2);
    font-size: 20px;
    border-radius: 8px;
}