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

:root {
    --base: #555;
    --base-100: #f1f1f1;
    --base-800: #000;
    --yellow: #ffda4b;
    --yellow-100: #fffbe6;
    --yellow-400: #ffda4b;
    --yellow-800: #8b6f00;
    --blue: #0a61ae;
    --blue-100: #e2f8ff;
    --blue-400: #61dafb;
    --blue-800: #0a61ae;
}

body {
  font-family: "Open Sans", serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-size: 20px;
}

a {
    text-decoration: none;
    color: var(--blue);
    &:hover {
        text-decoration: underline;
    }
}

header {
    padding-top: 10px;
    padding-bottom: 10px;
    display: flex;
    justify-content: space-between;
    max-width: 1440px;
    margin: auto;
    border-bottom: 1px solid rgba(0,0,0,0.1);


    .logo-holder {
        display: flex;
        padding: 10px;
        align-items: center;
        font-weight: 600;
        color: var(--base-800);

        .logo {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            background-color: var(--base-800);
            color: var(--base-100);
            height: 64px;
            width: 64px;
            margin-right: 20px;
            border-radius: 50%;

        }
        .logo-text {
            flex: 1;

        }
    }

    nav {
        display: flex;
        align-items: center;
        ul {
            display: flex;
            list-style-type: none;
            gap: 5px;
            li {
                display: inline-block;
                a{
                    display: inline-block;
                    padding: 10px 20px;
                    color: var(--base);
                    &:hover {
                        background-color: var(--base-100);
                        border-radius: 10px;
                        text-decoration: none;
                    }
                }
            }
        }

        .mobile-toggle {
            display: none;
            color: var(--base-800);
            padding: 10px;
            @media (max-width: 768px){
                display: inline-block;
                position: absolute;
                top: 20px;
                right: 20px;
            }
        }

    }

    @media (max-width: 1024px) {
        flex-direction: column;
        align-items: center;
    } 

    @media (max-width: 768px) {
        flex-direction: column;
        align-items: center;
        
        nav {
            margin-top: 10px;
            width: 100%;
            ul {
                display: none;
                flex-direction: column;
                text-align: center;
                width: 100%;
                a {
                    width: 100%;
                }
                &.active {
                    display: flex;
                }
            }
        }
    }
}

.container {
    max-width: 1440px;
    margin: auto;
    gap: 30px;
    margin-top: 30px;
    margin-bottom: 30px;
}

.button {
    display: inline-block;
    padding: 10px 30px;
    background-color: var(--blue);
    color: var(--base-100);
    border-radius: 10px;
    transition: ease 0.3s all;
    &:hover {
        text-decoration: none;
        background-color: var(--base-800);
    }
    &.white {
        background-color: white;
        color: var(--base-800);
        &:hover {
            background-color: var(--base-100);
            color: var(--base);
        }
    }
    &.black {
        background-color: black;
        color: white;
        &:hover {
            background-color: var(--base);
            color: var(--base-100);
        }
}   
}

h1 {
    font-size: 64px;
    line-height: 1;
    margin-bottom: 10px;
    small {
        display: block;
        font-weight: 100;
    }
    @media (max-width: 1024px) {
        font-size: 48px;
    }
}

.hero {
    display: flex;
    @media (max-width: 1024px){
        flex-direction: column;
    }
    .hero-blue {
        flex: 1;
        background-color: var(--blue-100);
        border-radius: 30px;
        padding: 30px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        span {
            @media (max-width: 1024px){
                display: none;
            }
        }
        .call-to-action {
            margin-top: 20px;
            margin-bottom: 10px;
            a {
                margin-right: 10px;
                margin-bottom: 10px;
            }
        }
        .social-links {
            a {
                &:hover {
                    text-decoration: none;
                }
            }
        }
    }
}

.logos {
    background-color: var(--base-100);
    border-radius: 30px;
    padding: 30px 0px;
    @media (max-width: 1440px){
        border-radius: 0px;
    }
    .marquee {
        width: 100vw;
        max-width: 100%;
        height: 128px;
        overflow: hidden;
        position: relative;
        .track {
            position: absolute;
            white-space: nowrap;
            will-change: transform;
            animation: marquee 40s linear infinite;
            display: flex;
            gap: 10px;
        }
    }
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

h2 {
    font-size: 64px;
    line-height: 1;
    margin-bottom: 10px;
    text-align: center;
    color: var(--base-800);
    padding: 30px;
    small {
        display: block;
        font-weight: 100;
        font-size: 0.5em;
        color: var(--base)
    }
    @media (max-width: 1024px) {
        font-size: 48px;
    }
}

h3 {
    font-size: 32px;
    font-weight: 600;
    line-height: 1;
    margin-bottom: 20px;
    color: var(--base-800);
}

.skills {
    .holder-blue {
        background-color: var(--blue-100);
        border-radius: 30px;
        padding: 30px;
        display: flex;
        @media (max-width: 1024px) {
            flex-direction: column;
        }
        .left-column {
            flex: 1;
            h3 {
                font-size: 28px;
            }
            ul {
                list-style-type: none;
                gap: 10px;
                margin-right: 100px;
                margin-bottom: 20px;
                li {
                    display: inline-block;
                    font-size: 18px;
                    font-weight: 450;
                    background-color: var(--blue-400);
                    padding: 10px 20px;
                    border-radius: 15px;
                    margin-bottom: 10px;
                }
            }
        }
        .right-column {
            flex: 1;
            h3 {
                font-size: 28px;
            }
            p {
                margin-bottom: 20px;
            }
        }
    }
}

.work-experience {
    .jobs {
        display: flex;
        gap: 30px;
        @media (max-width: 1024px) {
            flex-direction: column;
        }
        article {
            background-color: var(--yellow-100);
            padding: 30px;
            border-radius: 30px;
            flex: 1;
            h3 {
                margin-top: 20px;
                margin-bottom: 10px;
            }
            div {
                font-weight: 600;
                margin-bottom: 5px;
                color: var(--base-800);
            }
            p {
                margin-bottom: 10px;
            }
            figure {
                width: 100%;
                padding-top: 56.25%; /* Gives the image 16:9 aspect ratio*/
                overflow: hidden;
                position: relative;
                border-radius: 15px;
                img {
                    position: absolute;
                    top: 0;
                    left: 0;
                    height: 100%;
                    object-fit: cover;
                    transition: ease 3s all;
                }
                figcaption {
                    position: absolute;
                    bottom: 0;
                    left: 0;
                    right: 0;
                    background-color: rgba(0,0,0, 0.5);
                    color: var(--base-100);
                    text-align: center;
                    padding: 10px;
                    opacity: 0;
                    visibility: hidden;
                    transition: ease .3s all;
                }

                &:hover {
                    figcaption {
                        opacity: 1;
                        visibility: visible;
                    }
                    img {
                         transform: scale(1.2);
                    }
                }
            }
        }
    }
}