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

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

:root{

    /* theme colors */
    --bg-dark: #030303; 
    --bg-light: #f5f5f5; 

    /* text color */
    --text-for-dark: #dadada ;
    --text-for-light: #1E1E1E ;

    /* button color */
    --column-color:#111111;
    --button-dark2:#242424;
    --button-light:#ECECF3;
    --del-btn-color: rgb(213, 49, 49) ;

    /* task color */
    --bg-task-color:rgb(50, 50, 50) ;


    /* padding variables */
    --nav-padding: 1.3vw 3vw ;
    --section-padding: 1.3vw 3vw ;
    --padding-s: 0.2vw ;
    --padding-m: 0.5vw ;
    --padding-l: 0.8vw ;
    --padding-xl: 1.2vw ;
    --padding-xxl: 1.5vw ;
    --padding-xxxl: 2vw ;

    /* border radius */
    --border-radius-s: 5px ;
    --border-radius-m: 10px ;
    --border-radius-l: 15px ;
    --border-radius-xl: 20px ;

    
}


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

body{
    color: var(--text-for-dark);
    background-color: var(--bg-dark);
}

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

nav{
    padding: var(--nav-padding);

    display: flex;
    align-items: center;
    justify-content: space-between;
}

nav button{
    background-color: var(--button-dark2);
    color: var(--text-for-dark);
    padding: var(--padding-m) var(--padding-l);
    border-radius: var(--border-radius-m);
    border: none;
    outline: none;
    cursor: pointer;
}


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

section .task-column{
    padding: var(--padding-l);
    background-color: var(--column-color);
    flex-grow: 1;
    width: 100%;

    display: flex;
    flex-direction: column;
    gap: var(--padding-l);

    border-radius: var(--border-radius-m);
    transition: all 0.2s cubic-bezier(0.215, 0.610, 0.355, 1) ;
}

section .task-column.hover{
    border: 1px dashed var(--bg-light);
    scale: 1.03;
    transition: all 0.4s cubic-bezier(0.215, 0.610, 0.355, 1) ;
}

section .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-l);
    border-radius: var(--border-radius-m);
    

    display: flex;
    flex-direction: column;
    cursor: grab;
}

section .task-column .task button{
    align-self: self-end;

    background-color: var(--del-btn-color);
    color: var(--text-for-dark);
    padding: var(--padding-m) var(--padding-l);
    border-radius: var(--border-radius-m);
    border: none;
    outline: none;
    cursor: pointer;
}

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

    /* background-color: black; */

}
.active-modal{
    display: flex;
}

.modal .bg{
    position: absolute;
    height: 100%;
    width: 100%;
    background-color: #56565680;
    backdrop-filter: blur(5px);
}

.modal .center{

    background-color: var(--button-dark2);
    padding: var(--padding-xl);
    border-radius: var(--border-radius-l);

    display: flex;
    flex-direction: column;
    gap: var(--padding-m);

    z-index: 10;

}

.modal .center input, .modal .center textarea{
    background-color: var(--bg-task-color);
    border: none;
    outline: none;
    color: var(--text-for-dark);
    padding: var(--padding-m);
    border-radius: var(--border-radius-m);
    font-size: 1.2vw;
}

.modal .center button{
    align-self: center;
    
    background-color: rgb(85, 122, 85);
    color: var(--text-for-dark);
    padding: var(--padding-m) var(--padding-l);
    border-radius: var(--border-radius-m);
    border: none;
    outline: none;
    cursor: pointer;
    font-size: 1.2vw;
}