:root{
     --bg-color : #f4f4f4;
     --card-color : #ffffff;
     --text-color : #444242;
     --button-bg : #4f46e5;
}

*{
     margin: 0;
     padding: 0;
     box-sizing: border-box;
     font-family:Tahoma,sans-serif;
     text-transform: capitalize;
}

body{
     background: var(--bg-color);
     display: flex;
     justify-content: center;
     align-items: center;
     padding: 20px;
     flex-direction: column;
     color: var(--text-color);
     transition: background 0.8s, color 0.8s;
}
h3{
     color: var(--card-color);
}
main{
     width: 100%;
     max-width: 600px;
     background: linear-gradient(to left,rgb(250, 36, 36) ,rgb(51, 51, 217),violet);
     padding: 20px;
     border-radius: 8px;
     box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
     
}

header{
     text-align: center;
     align-items: center;
     display: flex;
     gap: 10px;
     margin-bottom: 30px;
     
     
}

#themeToggle{
     background-color: var(--text-color);    
     border-radius: 50%;
     padding: 0;
}
section{
     margin-bottom: 20px;
}
form{
     display: flex;
     flex-direction: column;
     gap: 10px;
}
form button{
     border: 1.5px solid gainsboro;
     background-color: transparent;
     opacity: 0.8;
     transition: 0.3s;
     box-shadow: 0 5px 0 transparent;
     transition: all 0.1s ease;
}
form button:hover{
    
    border-color: var(--card-color);
    opacity: 1;
 } 
     
 
input{
     padding: 10px;
     border: 1px solid #eae7e7;
     border-radius: 4px;
     width: 100%;
     letter-spacing: 1px;
}
button{
     padding: 8px 16px;
     font-size: 16px;
     border: none;
     font-size: larger;
     background: transparent;
     color: var(--card-color);
     border-radius: 4px;
     cursor: pointer;
     transition: 0.3s;
}
button:active{
     transform: translateY(3px);
     box-shadow: 0 2px 0 transparent;
 }
button:hover{
     opacity: 2;
}
ul{
     list-style: none;
}
li{
     background-color:transparent;
     padding: 4px 8px;
     margin-bottom: 8px;
     display: flex;
     justify-content: space-between;
     align-items: center;
     flex-wrap: wrap;
     border: 1px solid gainsboro;
     border-radius: 30px;
     
}
li span{
     flex: 1;
     word-break: break-word;
     /* font-size: large; */
     font-weight:300;
     letter-spacing: 0.5px;
     color: var(--card-color);
     padding-left: 10px;
}
.actions button{
     opacity: 0.6;
     color: var(--card-color);
     font-weight: 600;
}
.actions button:hover{
     text-shadow: 0 4px 6px rgba(0, 0, 0, 0.4);
     opacity: 2;
}

body.dark{
     --bg-color : #121212;
     --card-color : #1e1e1e;
     --text-color : #dfd8d8;
     --button-bg : #6366f1;
}

@media(min-width : 600px){
     form{
          flex-direction: row;
     }
     input{
          flex: 1;
     }
     button{
          width: auto;
     }
     
}