body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: white;
    color: #333;
    transition: background-color 0.3s, color 0.3s;
}
.head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: white;
    box-shadow: 0 2px 6px rgba(3, 3, 3, 0.15);
    margin: -20px -20px 20px -20px;
    position: relative;
    transition: background-color 0.3s;
}
.head-on-the-left {
    display: flex;
    align-items: center;
}
.menu-bar {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    z-index: 1001;
}

.menu-bar span {
    width: 25px;
    height: 3px;
    background-color: rgb(65, 65, 65);
    border-radius: 2px;
    transition: 0.3s;
}

.menu-bar.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}




.menu-bar.active span:nth-child(2) {
    opacity: 0;
}

.menu-bar.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.sr-only {
    position: absolute;
    width: 1px;

    height: 1px;
    padding: 0;
    margin: -2px;

    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border-width: 0;
}
nav {
    display: flex;
    gap: 10px;
}

nav button {
    border: none;
    padding: 10px 20px;
    margin: 0 5px;

    border-radius: 6px;
    font-weight: 500;
    transition: 0.2s;

    cursor: pointer;
    background-color: #ffffff;
    color: rgb(65, 65, 65);
}

nav button:hover {
    background-color: darkblue;
    color: white;
}

nav button.active {
    background-color: #26b396;
    color: white;
}

nav button:focus {
    outline: 2px solid #6757ce;
    outline-offset: 2px;
}


@media (max-width: 768px) {
    .menu-bar {
        display: flex;
    }

    nav {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        z-index: 1000;
        flex-direction: column;

        background-color: lightgrey;
        padding: 12px;
        gap: 12px;

        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        display: none;

        width: 100%;
       
    }

    nav.active {
        display: flex;
    }

    nav button {
        width: 100%;
        text-align: left;
        padding: 15px;
        margin: 0;
    }

    h1 {
        font-size: 16px ;
    }
}


#dashboard-id {
    margin: 20px 0;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}



.dashboard-card {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    min-width: 180px;
    flex: 1;
    text-align: center;
    box-shadow: 0px 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.25s;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0px 6px 12px rgba(0,0,0,0.15);
}




.dashboard-card h3 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: rgb(65, 65, 65);
    font-weight: 600;
}




.dashboard-card p {
    margin: 0;
    font-size: 25px;
    font-weight: bold;
    color:rgb(65, 65, 65);
}


.progress-bar {
    width: 100%;
    margin-top: 25px;
}

.progress {
    width: 100%;
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    height: 30px;
}



#progress-bar {
    height: 100%;
    width: 0%;
    background-color: #6956e2;
    transition: width 0.5s ease-in-out;
}



#progress-text {
    margin-top: 7px;
    text-align: center;
    font-weight: 500;
}


.graph {
    width: 100%;
    max-width: 100%;
    margin-top: 20px;
    padding: 10px;
    background-color: white;
    border-radius: 10px;
}



.graph canvas {
    max-height: 300px;
}


.views {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-top: 20px;
}
.task-card {
    background-color: white;
    border: 2px solid white;
    border-radius: 10px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    transition: transform 0.2s, box-shadow 0.2s;
}






.task-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}


.task-card.completed {
    opacity: 0.7;
    background-color: white;
}



.task-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.task-card-header input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.task-card-title {
    font-weight: bold;
    font-size: 16px;
    color: #333;
    flex: 1;
}

.task-card.completed .task-card-title {
    text-decoration: line-through;
    color: rgb(167, 165, 165);
}

.task-card-body {
    font-size: 14px;
    color: rgb(167, 165, 165);
    margin: 8px 0;
}

.task-card-body span {
    font-weight: 600;
    color:rgb(65, 65, 65);
}

.task-card-footer {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}



.task-card-footer button {
    flex: 1;
    padding: 8px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: rgb(216, 103, 103);
    color: white;
    font-weight: 500;
    transition: background-color 0.2s;
}

.task-card-footer button:hover {
    background-color:rgb(216, 103, 103);
}


.structure {
    display: none;
    border-collapse: collapse;
    width: 100%;
    margin-top: 20px;
}

.structure thead {
    background-color: white;
}

.structure th,
.structure td {
    padding: 12px;
    border-bottom: 1px solid lightgrey;
    text-align: left;
}

.structure th {
    font-weight: bold;
}

.structure tr:hover {
    background-color: white;
}

.structure tr.completed {
    opacity: 0.6;
}
.structure tr.completed td:not(:first-child):not(:last-child) {
    text-decoration: line-through;
    color: #696868;
}



.structure button {
    padding: 6px 12px;
    background-color: rgb(216, 103, 103);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.structure button:hover {
    background-color:rgb(216, 103, 103);
}

.structure button:focus {
    outline: 2px solid rgb(65, 65, 65);
    outline-offset: 2px;
}
@media (min-width: 768px) {
    .views {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .views {
        display: none;
    }

    .structure {
        display: table;
    }
}


form {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

form label {
    font-weight: 500;
    color: rgb(65, 65, 65);
}

form input {
    margin-bottom: 10px;
    padding: 10px;
    width: 100%;
    max-width: 400px;
    border: 1px solid white;
    border-radius: 5px;
    box-sizing: border-box;
    font-size: 14px;
    transition: border-color 0.2s;
}
form input:focus {
    outline: none;
    border-color: #6a5acd;
    box-shadow: 0 0 0 2px rgba(106, 90, 205, 0.2);
}

form input.invalid {
    border-color: #ff6b6b;
    background-color: #ffe6e6;
}
form button {
    margin-right: 12px;
    margin-top: 12px;
    padding: 10px 20px;
    background-color: #6a5acd;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: 500;
}
form button:hover {
    background-color: #5a4aad;
}

#clearing, #canceling {
    background-color: #ccc;
    color: #333;
}

#clearing:hover, #canceling:hover {
    background-color: #bbb;
}


.error {
    color: #ff6b6b;
    font-size: 12px;
    display: block;
    margin-top: -8px;
    margin-bottom: 10px;
    min-height: 18px;
}
.records {
    margin: 20px 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}



.records h4 {
    margin: 0;
    flex: 1;
}

#search-input, .selection {
    padding: 10px;
    margin-right: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

#search-input {
    min-width: 250px;
}

#search-input:focus, .selection:focus {
    outline: none;
    border-color: #6a5acd;
    box-shadow: 0 0 0 2px rgba(106, 90, 205, 0.2);
}

#add-task {
    padding: 10px 20px;
    background-color: #6a5acd;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: 500;
}

#add-task:hover {
    background-color: #5a4aad;
}


.set-section {
    margin: 20px 0;
    padding: 15px;
    background-color: #f5f5f5;
    border-radius: 8px;
}
.set-section h3 {
    margin-top: 0;
}
.set-section label {
    display: block;
    margin: 10px 0;
    cursor: pointer;
}
.set-section input[type="radio"] {
    margin-right: 8px;
    cursor: pointer;
}

#export-data {
    padding: 10px 20px;
    background-color: #6a5acd;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-right: 10px;
    font-weight: 500;
}

#export-data:hover {
    background-color: #5a4aad;
}

#import-file {
    padding: 8px;
    margin-top: 10px;
    cursor: pointer;
}


#styling {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin: 20px 0;
}



.border {
    background-color: #ffffff;
    border: 2px solid #d3d3d3;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}


.border:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 10px rgba(0,0,0,0.12);
}

.border span {
    font-weight: 600;
    font-size: 15px;
    display: block;
    margin-bottom: 8px;
    color: #333;
}
.border p {
    font-size: 13px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

@media (min-width: 768px) {
    #styling {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (min-width: 1024px) {
    #styling {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
}

#About img {
    margin: 25px auto;
    width: 75%;
    max-width: 500px;
    height: auto;
    display: block;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}


footer {
    margin-top: 40px;
    padding: 20px;
    background-color: #f5f5f5;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    position: relative;
}

.on-the-left p {
    margin: 0;
    color: #666;
}

.on-the-right {
    display: flex;
    gap: 10px;
}

#Contact-Me {
    padding: 10px 20px;
    background-color: #6a5acd;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: 500;
}

#Contact-Me:hover {
    background-color: #5a4aad;
}

.contacts {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    z-index: 2000;
    min-width: 300px;
    text-align: center;
}

.contacts h3 {
    margin-top: 0;
    color: #333;
}

.contacts p {
    margin: 15px 0;
    color: #666;
}

.contacts a {
    color: #6a5acd;
    text-decoration: none;
    font-weight: 500;
}

.contacts a:hover {
    text-decoration: underline;
}


body.dark-mode {
    background-color:black;
    color: #f0f0f0;
}

body.dark-mode .head {
    background-color: rgb(65, 65, 65);
}

body.dark-mode nav {
    background-color: rgb(65, 65, 65) ;
}

body.dark-mode nav button {
    background-color: rgb(65, 65, 65);
    color: #f0f0f0;
    border: 1px solid rgb(65, 65, 65);
}

body.dark-mode nav button:hover {
    background-color: rgb(65, 65, 65);
}

body.dark-mode nav button.active {
    background-color:rgb(77, 180, 77);
}

body.dark-mode .menu-bar span {
    background-color: white;
}

body.dark-mode .dashboard-card {
    background-color:rgb(65, 65, 65);
    border: 1px solid rgb(65, 65, 65);
}



body.dark-mode .dashboard-card h3 {
    color: white;
}
body.dark-mode .dashboard-card p {
    color: white;
}
body.dark-mode .progress {
    background-color: rgb(65, 65, 65);
}


body.dark-mode #progress-bar {
    background-color:rgb(238, 125, 238);
}
body.dark-mode .graph {
    background-color: rgb(65, 65, 65);
}
body.dark-mode .task-card {
    background-color:rgb(65, 65, 65);
    border-color: rgb(65, 65, 65);
}
body.dark-mode .task-card.completed {
    background-color: rgb(5, 70, 5);
}



body.dark-mode .task-card-title {
    color: white;
}

body.dark-mode .task-card-body {
    color: white;
}

body.dark-mode .task-card-body span {
    color: white;
}

body.dark-mode .structure {
    border-color:rgb(65, 65, 65);
}

body.dark-mode .structure th {
    background-color: rgb(65, 65, 65);
    color:white;
    border-color: rgb(65, 65, 65);
}



body.dark-mode .structure td {
    border-color: rgb(65, 65, 65);
    color: white;
}

body.dark-mode .structure tr:hover {
    background-color: rgb(65, 65, 65);
}

body.dark-mode form {
    background-color: rgb(65, 65, 65);
}

body.dark-mode form label {
    color: white;
}

body.dark-mode form input {
    background-color: black;
    color: white;
    border-color:rgb(65, 65, 65);
}

body.dark-mode form input.invalid {
    background-color: darkred;
    border-color: red;
}



body.dark-mode .error {
    color: rgb(245, 108, 108);
}

body.dark-mode #search-input,
body.dark-mode .selection {
    background-color: rgb(54, 54, 54);
    color:white;
    border-color: rgb(65, 65, 65);
}

body.dark-mode .set-section {
    background-color: rgb(65, 65, 65);
    color: white;
}

body.dark-mode .border {
    background-color: rgb(65, 65, 65);
    border-color:rgb(65, 65, 65);
    color: white;
}

body.dark-mode .border span {
    color: white;
}



body.dark-mode .border p {
    color: white;
}

body.dark-mode footer {
    background-color: rgb(65, 65, 65);
}

body.dark-mode .on-the-left p {
    color: white;
}

body.dark-mode .contacts {
    background-color: rgb(65, 65, 65);
    border: 1px solid rgb(65, 65, 65);
}



body.dark-mode .contacts h3 {
    color: white;
}

body.dark-mode .contacts p {
    color: white;
}