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

html, body {
    height: 100%;
    width: 100%;
}

html{
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

:root {
    --background-color: #232323;
    --background-color-1: #131313; 
    --background-color-2: rgb(222, 220, 216);
    --background-color-3: rgba(45, 45, 45, 0.685);
    --primary-text-color-2: rgb(27, 27, 27);
    --primary-text-color: #dfdfdf;
    --bg-button-color: rgb(239, 77, 77);
    --bg-button-color-2: rgb(96, 192, 96);
    --bg-task-color: rgb(73, 73, 73);

    /* padding varuables */
    --nav-padding: 15px 30px;
    --section-padding: 15px 30px;
    --padding-s: 5px;
    --padding-m: 10px;
    --padding-l: 15px;
    --padding-xl: 20px;
    --padding-2xl: 30px;

    --border-radius-s: 5px;
    --border-radius-m: 10px;
    --border-radius-l: 15px;
    --border-radius-xl: 20px;
    --border-radius-2xl: 30px;
}

body{
    background-color: var(--background-color);
    color: var(--primary-text-color);
}

main{
    height: 100%;
    display: flex;
    flex-direction: column;
}


.navbar{
    padding: var(--nav-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

nav button{
    background-color: var(--bg-button-color);
    border: none;
    outline: none;
    padding: var(--padding-m);
    color: var(--primary-text-color);
    cursor: pointer;
    border-radius: var(--border-radius-m);
}

section{
    padding: var(--section-padding);
    display: flex;
    flex-grow: 1;
    justify-content: space-between;
    gap: var(--padding-2xl);
}

section .task-column{
    background-color: black;
    flex-grow: 1;
    border-radius: var(--border-radius-m);
    padding: var(--padding-m);
    display: flex;
    flex-direction: column;
    gap: var(--padding-l);
}

section .task-column.hover-over {
    border: 2px dashed var(--primary-text-color);
    scale: 1.05;
    transition: all 0.7s cubic-bezier(0.19, 1, 0.22, 1);
}

section .task-column .heading{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

section .task-column .task{
    background-color: var(--bg-task-color);
    padding: var(--padding-m);
    border-radius: var(--border-radius-s);
    display: flex;
    flex-direction: column;
    cursor: grab;
}

section .task-column .task button{
    align-self: flex-end;
    padding: var(--padding-s);
    border-radius: var(--border-radius-s);
    cursor: pointer;
    border: none;
    outline: none;
    background-color: var(--bg-button-color);
    color: var(--primary-text-color);
}

.modal{
position: fixed;
height: 100vh;
width: 100vw;
top: 0;
left: 0;
display: none;
align-items: center;
justify-content: center;
}

.modal.active{
    display: flex;
}


.modal .center{
    background-color: var(--background-color-1);
    padding: var(--padding-2xl);
    border-radius: var(--border-radius-m);
    display: flex;
    flex-direction: column;
    gap: var(--padding-m);
    z-index: 10;
}

.modal .center input, .modal .center textarea{
    background-color: var(--background-color-2);
    border: none;
    outline: none;
    color: var(--primary-text-color-2);
    padding: var(--padding-m);
    border-radius: var(--border-radius-s);
}

.modal .center button{
    background-color: var(--bg-button-color-2);
    border-radius: var(--border-radius-s);
    padding: var(--padding-m);
}

.modal .bg{
    background-color: var(--background-color-3);
    position: absolute;
    height: 100%;
    width: 100%;
    backdrop-filter: blur(5px);
}