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

:root {
    --primary-color: #000000;
    --secondary-color: #080f24;
    --accent-color: #c10742;

    --background-color: #000000;
    --background-grad: linear-gradient(rgba(0, 0, 0, 1.0), rgb(81, 81, 81));
    --footer-color: #24262b;

    --primary-font-color: #ffffff;
    --secondary-font-color: #bbbbbb;
    --third-font-color: #000000;

    --border-radius: 10px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
    --animation: appear linear;
}

body {
    min-height: 100vh;
    background: var(--background-grad);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

nav {
    background-color: white;
    box-shadow: var(--box-shadow);
}

nav ul {
    width: 100%;
    list-style: none;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

nav li {
    height: 50px;

}

nav a {
    height: 100%;
    padding: 0 30px;
    text-decoration: none;
    display: flex;
    align-items: center;
    color: black;
}

nav span {
    height: 100%;
    padding: 13px 30px;
    text-decoration: none;
    display: flex;
    align-items: center;
    color: black;
}

nav a:hover {
    background-color: var(--background-color);
    color: #fff;
    
}

nav li:first-child {
    margin-right: auto;
}

.sidebar {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 250px;
    z-index: 999;
    background-color: #fff;
    backdrop-filter: blur (10px);
    box-shadow: var(--box-shadow);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;

}

.menu-button {
    display: none;
}

.sidebar li {
    width: 100%;
}

.sidebar a {
    width: 100%;
}


.material-symbols-outlined {
    font-variation-settings:
        'FILL' 0,
        'wght' 400,
        'GRAD' 0,
        'opsz' 24
}

@media(max-width: 875px) {
    .hideOnMobile {
        display: none;
    }

    .menu-button {
        display: block;
    }
}

@media(max-width: 400px) {
    .sidebar {
        width: 100%;
    }
}

.section-01 {
    height: calc(100vh - 300px);
    max-height: 600px;
    min-height: 500px;
    width: calc(100vw);
    color: var(--primary-font-color);
    text-align: center;
    display: flex;
    align-items: center;
    flex-direction: column;
    padding: 10%;
    z-index: 1000px;
    margin-bottom: 10%;
}

.section-01 h2 {
    font-size: 50px;
    margin-top: 160px;
    margin-bottom: 10px;
    font-weight: 00;
}

.section-01 p {
    font-size: 25px;
    max-width: 600px;
    margin-bottom: 20px;
    font-weight: 100;
}

/* Buttons */

.btn {
    background-color: var(--secondary-color);
    border-radius: 10px;
    color: #fff;
    padding: 10px 10px;
    text-decoration: none;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.btn:hover {
    background-color: var(--accent-color);
}

.section-02 {
    min-height: 400px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    justify-content: center;
    background: #f1f0f0;
    padding: 10px;
}

.section-02-content a {
    color: var(--primary-font-color);
    text-align: center;
    margin: 10px 10px;
}

@media (max-width: 767px) {

    .section-01 {
        align-items: flex-start;
        text-align: left;
        max-height: 500px;
    }

    .section-02 {
        grid-template-columns: repeat(auto-fit, minmax(100px, 767px))
    }
}

.article {
    height: 100%;
    display: flex;
    flex-direction: column;
    background: #000000;
    border-radius: var(--border-radius);
}



.footer-container {
    max-width: 1170;
    margin: auto;
    z-index: 999px;
}

.footer ul {
    list-style: none;
}

.footer ul li:not(:last-child) {
    margin-bottom: 10px;
}

.footer ul li a {
    font-size: 12px;
    /*text-transform: capitalize;*/
    color: var(--secondary-font-color);
    text-decoration: none;
    font-weight: 200;
    display: block;
    transition: var(--transition);
}

.footer {
    background-color: var(--footer-color);
    padding: 70px 0;
}

.footer-col {
    width: 25%;
    padding: 0 15px;
    color: #ffffff;
    fill: var(--secondary-font-color);
}

.footer-col h4 {
    font-size: 14px;
    color: #ffffff;
    margin-bottom: 30px;
    text-transform: capitalize;
    font-weight: 400;
    position: relative;
}

.footer-col ul li a:hover {

    color: var(--primary-font-color);
    padding-left: 8px;
}

.footer-col h4::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    background-color: var(--accent-color);
    height: 2px;
    box-sizing: border-box;
    width: 50px;
}


.footer-row {
    display: flex;
    flex-wrap: wrap;
}

.footer-col .footer-social-links a {
    display: inline-flex;
    height: 40px;
    width: 40px;
    line-height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--secondary-font-color);
    margin-right: 10px 20px;
    text-decoration: none;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-col .footer-social-links a:hover {
    color: var(--footer-color);
    background-color: var(--primary-font-color);
}

@media(max-width: 767px) {
    .footer-col {
        width: 50%;
        margin-bottom: 30px;
    }
}

@media(max-width: 600px) {
    .footer-col {
        width: 100%;
    }
}

/* Statement */

.statement-01 {

    width: calc(100vw);
    color: var(--primary-font-color);
    text-align: center;
    display: flex;
    align-items: center;
    flex-direction: column;
    padding: 50px;
    background-color: var(--background-color)
}

.statement-01 h2 {
    color: var(--accent-color);
    font-size: 35px;
    margin-top: 40px;
    margin-bottom: 40px;
    font-weight: 600px;
    animation: appear 1.5s ease;
}

.statement-01 p {
    color: var(--primary-font-color);
    font-size: 20px;
    max-width: 600px;
    margin-bottom: 30px;
    font-weight: 300;
    animation: appear 3s ease;
}

.statement-02 {

    width: calc(100vw);
    color: var(--font-color);
    text-align: center;
    display: flex;
    align-items: center;
    flex-direction: column;
    padding: 50px;
    background-color: var(--background-color)    
}

.statement-02 h2 {
    color: var(--primary-font-color);
    font-size: 35px;
    margin-top: 10px;
    margin-bottom: 20px;
    font-weight: 600px;
    animation: var(--animation);
    animation-timeline:view();
    animation-range: entry 0% cover 40%;
}

.statement-02 p {
    color: var(--primary-font-color);
    font-size: 20px;
    max-width: 600px;
    margin-bottom: 20px;
    font-weight: 300;
}

/* Portfolio */

.portfolio {
    padding: 30px 0;
    text-align: left;
    background-color: var(--primary-font-color);
    font-size: 352px;
    height: auto-fit;
    width: calc(100vw);

}

.portfolio h2 {
    margin-bottom: 15px;
    font-size: 30px;
    color: var(--font-color);
    text-align: center;
}

.portfolio h3 {
    margin-top: 5px;
    margin-bottom: 2px;
    font-size: 20px;
    font-weight: 200;
    color: var(--third-font-color);
}

.portfolio p {
    font-size: 12px;
    color: var(--font-color);
}


.portfolio-grid {
    display: grid;
    /*grid-template-columns: repeat(auto-fit, minmax(100px, 400px));*/

    grid-template-columns: repeat(2, minmax(100px, 600px));
    /*grid-template-columns: 1fr 1fr;*/
    gap: 10px;
    justify-content: center;
}

@media(max-width: 1000px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 400px));
    }
}

@keyframes appear {
    from {
        opacity: 0;
        scale: 0.9;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        scale: 1;
        transform: translateY(0px);
    }
}

.portfolio-item:hover {
    transform: translateY(-5px);
    cursor: pointer;
}

.portfolio-item {
    padding: 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    background-color: var(--primary-font-color);
}

.portfolio-item a{
    text-decoration: none;
    color: var(--third-font-color);
}

.portfolio-item img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin-bottom: 1px;
}

/*Project_01 Colour palette Generator*/

.app-background{
    background-color: #ffffff;
    min-height: 800px;
    padding: 10px;
    

}

.app {
    background-color: #fff;
    width: 50%;
    max-width: 600px;
    margin: 100px auto 0;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.app h1 {
    font-weight: 25px;
    color: var(--primary-color);
    font-weight: 600;
    border-bottom: 1px solid #333;
    padding-bottom: 30px;
}

.generator {
    padding: 20px 0;
}

.generator h2 {
    font-size: 16px;
    color: var(--secondary-font-color);
    font-weight: 600;
    padding-bottom: 15px;
}

#generate-btn {
    font-size: 15px;
    color: var(--primary-font-color);
    font-weight: 400;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 30px;
    background-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: baseline;
    cursor: pointer;
    box-shadow: 0;
}

#generate-btn:hover {
    transform: translateY(-2px);
}

#generate-btn:active {
    transform: translateY(0);
}

.palette-container {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(50px, 1fr));
}

.colour-box {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: transform 0.2s;
}

.colour-box:hover {
    transform: translateY(-5px);
}

.colour {
    height: 100px;
    cursor: pointer;
}

.colour-info {
    background-color: #ffffff;
    padding: 0.3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 15px;
}

.copy-btn {
    fill: var(--primary-color);
    background-color: #ffffff;
    padding: 2px;
    border: none;
    transform: translateY(0px);
    cursor: pointer;
    transition: color 0.5s;
    

}

.copy-btn:hover {
    fill: var(--accent-color);
    
}

.hex-value {
    font-weight: 500;
    letter-spacing: 0.5px;
}

@media(max-width:800px){
    .palette-container{
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
}

/*Project_02 quiz*/

.quiz {
    padding: 20px 0;
}

.quiz h2 {
    font-weight: 18px;
    color: var(--primary-color);
    font-weight: 600;
    padding-bottom: 15px;
}

.quiz-btn{
    background: #fff;
    color: #222;
    font-weight: 500;
    width: 100%;
    border: 1px solid #222;
    padding: 10px;
    margin: 5px 0;
    border-radius: 4px;
    text-align: left;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.quiz-btn:hover:not([disabled]){
    background: #222;
    color: #fff;
}

.quiz-btn:disabled{
    cursor: no-drop;
}

#next-btn{
    background: #001e4d;
    color: #fff;
    font-weight: 500;
    width: 150px;
    border: 0;
    padding: 10px;
    margin: 20px auto 0;
    border-radius: 4px;
    cursor: pointer;
    display: none;
}

.correct{
    background: #9aeabc;
}

.incorrect{
    background: #ff9393;
}

/*Project_03 kanban*/

.kanban {
    background-color: #fff;
    width: 90%;
    max-width: 700px;
    margin: 100px auto 0;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.kanban h1 {
    font-weight: 25px;
    color: var(--primary-color);
    font-weight: 600;
    border-bottom: 1px solid #333;
    padding-bottom: 30px;

}

.board {
    padding: 20px 0;

    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    gap: 20px;
}

.board h2 {
    font-weight: 18px;
    color: var(--primary-color);
    font-weight: 600;
    padding-bottom: 15px;
}

.list {
    background: linear-gradient(rgba(0, 0, 0, 1.0), rgba(26, 26, 86, 1.0));
    padding: 1rem;
    border-radius: var(--border-radius);
    width: 30%;
    min-height: 300px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
 }

.list h2 {
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 400;
}

.list.over {
    background: linear-gradient(rgba(0, 0, 0, 1.0), rgb(15, 15, 52));
}

.card {
    background-color: #fff;
    color: #555;
    font-size: 0.7rem;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 400;
    padding: 1rem;
    margin-bottom: 10px;
    border-radius: 8px;
    cursor: grab;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
    transition: transform var(--transition), box-shadow var(--transition);
}


.card:active {
    cursor: grabbing;
    border-radius: 8px;
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
}

@media (max-width:768px) {
    .board {
        flex-direction: column;
        align-items: center;
    }

    .list {
        width: 400px;
        margin-bottom: 20px;
    }
}

.tracker-app {
    background-color: #fff;
    width: 100%;
    max-width: 600px;
    margin: 100px auto 0;
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--box-shadow);
}

.tracker-app h1 {
    font-weight: 25px;
    color: var(--primary-color);
    font-weight: 600;
    border-bottom: 1px solid #333;
    padding-bottom: 30px;
}

.board {
    padding: 20px 0;
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    gap: 20px;
}

.board h2 {
    font-weight: 18px;
    color: var(--primary-color);
    font-weight: 600;
    padding-bottom: 15px;
}


.balance-container {
    background: linear-gradient(rgba(0, 0, 0, 1.0), rgba(26, 26, 86, 1.0));
    padding: 1rem;
    border-radius: var(--border-radius);
    width: 95%;
    min-height: 160px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    margin-top: 1rem;
    margin-bottom: 1rem;
    text-align: center;

}

.balance-container h1 {
    color: #ffffff;
    margin-bottom: 0.3rem;
    font-size: 3rem;
    font-weight: 100;
    border-bottom: none;
}

.balance-container h2 {
    color: #ffffff;
    margin-bottom: 0.3rem;
    font-size: 1.5rem;
    font-weight: 400;
}

.balance-container h3 {
    color: #ffffff;
    margin-bottom: 0.3rem;
    font-size: 1rem;
    font-weight: 200;
}

.balance-container p {
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 0.8rem;
    font-weight: 100;
}

.summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    background: #f1f0f0;
    border-radius: var(--border-radius);
    padding: 10px;
}

.expenses,
.income {
    border: #395fdc double 0.1px;
    border-radius: var(--border-radius);
    padding: 10px 0 0px;
    transition: var(--transition);
}

.expenses:hover,
.income:hover {
    transform: translateY(-3px);
}

.expenses h3,
.expenses p {
    color: #dc394c;
}

.income h3,
.income p {
    color: #39abdc;
}

.transaction-container {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.transaction-container h2{
    margin-bottom: 10px;
}

#transaction-list {
    list-style: none;
    max-height: 190px;
    overflow-y: auto;
    padding-right: 8px;
    flex-grow: 1;
}

#transaction-list::-webkit-scrollbar {
    width: 8px;
}

/*track is the background of the scrollbar, thumb is the draggable scrollbar*/

#transaction-list::-webkit-scrollbar-track {
    background-color: #f1f1f1;
    border-radius: 4px;
    box-shadow: var(--box-shadow);
}

#transaction-list::-webkit-scrollbar-thumb {
    background-color: #cbd5e0;
    border-radius: 4px;
}

#transaction-list::-webkit-scrollbar-thumb:hover {
    background-color: #a0aec0;
}

.transaction {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.0rem 0.8rem;
    margin-bottom: 6px;
    border-radius: var(--border-radius);
    background-color: #fff;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-right: 7px solid;
    animation: slideIn 0.6s ease;
    font-size: 0.8rem;
}

.transaction:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.transaction.income {
    border-right-color: #39abdc;
}

.transaction.expense {
    border-right-color: #dc3951;
}

.transaction .delete-btn {
    background: none;
    border: none;
    color: #6a6a6a;
    cursor: pointer;
    font-size: 1.4rem;
    opacity: 0.5;
    transition: var(--transition);
    padding: 4px 4px;
    border-radius: var(--border-radius);
    margin-left: 12px;
}

.transaction .delete-btn:hover {
    color: #dc394c;
    opacity: 1;
}

.form-container {
    background: linear-gradient(135deg, #e6e6e6, #c3c3c3);
    padding: 10px;
    border-radius: 12px;
    box-shadow: var(--box-shadow);
    height: 90%;
    display: flex;
    flex-direction: column;
}

.form-container form {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.form-group {
    margin-bottom: 10px;
}

.form-group button {

    width: 100%;
    padding: 6px 12px;
    margin-top: 10px;
    border: 1px solid #a7a7a7;
    border-radius: var(--border-radius);
    color: var(--primary-font-color);
    font-size: 0.8rem;
    transition: var(--transition);
    background: linear-gradient(rgb(92, 78, 159), rgba(26, 26, 86, 1.0));
    font-weight: 600;
    cursor: pointer;

}

.form-group button:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.form-group button:active {
    transform: translateY(0px);
    box-shadow: var(--box-shadow);
}

label {
    display: block;
    margin-bottom: 4px;
    margin-top: 6px;
    color: #555;
    font-size: 0.8rem;
    font-weight: 600;
}

input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #a7a7a7;
    border-radius: var(--border-radius);
    font-size: 0.6rem;
    transition: var(--transition);
    background-color: #fff;
}

input:focus {
    outline: none;
    border-color: #39abdc;
    box-shadow: var(--box-shadow);
}

input:hover {
    border-color: #a0aec0;
}

small {
    color: #555;
    font-size: 0.6rem;
    margin-top: 5px;
    display: block;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0px);
    }
}

@media (max-width:900px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    #transaction-list {
        max-height: 300px;
    }
}

/*slideshow*/

.slideshow {
    background-color: #fff;
    
    max-width: 560px;
    margin: 100px auto 0;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.slider {
    width: 500px;
    height: 300px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.slides {
    width: 500%;
    height: 300px;
    display: flex;
}

.slides input {
    display: none;
}

.slide {
    width: 20%;
    transition: 2s;
}

.slide img {
    width: 500px;
    height: 300px;
}

.navigation-manual {
    position: absolute;
    width: 500px;
    margin-top: -40px;
    display: flex;
    justify-content: center;
}

.manual-btn {
    border: 2px solid var(--accent-color);
    padding: 5px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    transform: translateY(-6px);
}

.manual-btn:not(:last-child) {
    margin-right: 40px;
}

.manual-btn:hover {
    background: var(--accent-color);
}

#radio1:checked~.first {
    margin-left: 0;
}

#radio2:checked~.first {
    margin-left: -20%;
}

#radio3:checked~.first {
    margin-left: -40%;
}

#radio4:checked~.first {
    margin-left: -60%;
}

.navigation-auto {
    position: absolute;
    display: flex;
    width: 500px;
    justify-content: center;
    margin-top: 260px;

}

.navigation-auto div {
    border: 2px solid #77979c;
    padding: 5px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.navigation-auto div:not(:last-child) {
    margin-right: 40px;
}

#radio1:checked~.navigation-auto .auto-btn1 {
    background: #c3145d;
}

#radio2:checked~.navigation-auto .auto-btn2 {
    background:#c3145d;
}

#radio3:checked~.navigation-auto .auto-btn3 {
    background: #c3145d;
}

#radio4:checked~.navigation-auto .auto-btn4 {
    background: #c3145d;
}

.slide h2 {
    font-size: 35px;
    margin-top: 0x;
    margin-bottom: 20px;
    font-weight: 600px;
    color: var(--font-color);
}

.slide p {
    font-size: 14px;
    max-width: 600px;
    margin-bottom: 30px;
    font-weight: 300;
}

.centered {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.container {
    position: relative;
    text-align: left;
    color: #fff;
    }

    /* Blog */

.blog {
    padding: 0px 0;
    
    color: var(--third-font-color);
}

.blog h2 {
    margin-bottom: 30px;
    font-size: 25px;
    color: var(--accent-color);
    text-align: center;
}

.blog-roll {
    max-width: 1000px;
    margin: 50 auto;
}

.blog-post {
    background-color: var(--third-color);
    padding: 25px;
    margin-bottom: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.blog-post:hover {
    transform: translateY(-5px);
    cursor: pointer;
}

.blog-post h3 {
    margin-bottom: 15px;
    font-size: 18px;
    color: var(--accent-color);
}

.blog-post p {
    margin-bottom: 10px;
    font-size: 14px;
}

.read-more {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: bold;
    font-size: 12px;
}

/* Contact */

.contact-form{
    background-color: #fff;    
    max-width: 360px;
    margin: 20px auto 0;
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--box-shadow);
}

.contact {
    padding: 30px 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 10px;
   
    color: var(--font-color);
}

.contact h2 {
    margin-bottom: 30px;
    font-size: 40px;
    color: var(--accent-color);

}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

form label {
    display: flex;
    margin-bottom: 10px;
    font-size: 15px;
    font-weight: bold;
}

form input,
form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #000000;
    font-size: 20px;
    border-radius: var(--border-radius);
}

button[type="submit"] {
    background-color: var(--accent-color);
    color: #fff;
    padding: 15px 25px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 15px;
    transition: var(--transition);
}

button[type="submit"]:hover {
    background-color: var(--secondary-font-color);
}