* {
    box-sizing: border-box;
}
html, body {
    height: 100%;
}

body {
    margin: 0;
    background-color: #0F172A;
    color: #E5E7EB;
    text-align: center;
    font-family: Arial, Helvetica, sans-serif;
}

#responsivehome,
#responsivelead,
#responsiveexp,
#responsiveedu,
#responsivepro,
#responsivecsl,
#responsive {
    width: 100%;
    min-height: 100vh;
    margin: 0 auto;
    background-color: #0F172A;
    color: #E5E7EB;
}

#head {
    background-color: #1F2937;
    color: #E5E7EB;
    padding-left: 1%;
    padding-top: 0.5%;
    padding-bottom: 0.5%;
    text-align: left;
    border-bottom: 2px solid rgba(229,231,235,0.08);
}

#close {
    display: flex;
    flex-direction: row;
}

nav {
    background-color: transparent;
    width: 30%;
    text-align: center;
    padding-left: 3%;
    padding-right: 3%;
}

nav ul {
    list-style: none;
    margin: 5vh 0;
    padding: 0;
}

#responsivehome #close ul {
    margin: 7vh 0;
}
#responsivepro  #close ul {
    margin: 7vh 0;
}
#responsivelead #close ul {
    margin: 5vh 0;
}

nav li {
    border: 2px solid rgba(229,231,235,0.12);
    background-color: #1F2937;
    margin-left: 1vw;
    margin-right: 1vw;
    margin-bottom: 1vh;
    padding: 3vh 2vw;
    font-size: calc(1px + 1vw);
    border-radius: 8px;
}

nav li:hover{
    transform: translateY(-2px);
    border-color: #22D3EE;
    background-color: #1F2937;
    box-shadow: 0 10px 24px rgba(34,211,238,.25);
}

nav a {
    text-decoration: none;
    color: #E5E7EB;
    font-size: large;
}

main {
    background-color: #0F172A;
    color: #E5E7EB;
    width: 70%;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    text-align: center;
    align-items: center;
    border-left: 2px solid rgba(229,231,235,0.08);
}

main ul {
    list-style: none; padding: 0;
}
main p  {
    font-size: large;
}
main a  {
    color: #22D3EE; text-decoration: none;
}
main a:hover {
    text-decoration: underline;
}

footer {
    margin: 1vh 0;
    padding: 0.6% 1%;
    background-color: #1F2937;
    color: #E5E7EB;
    text-align: center;
    border-top: 2px solid rgba(229,231,235,0.08);
}
footer a {
    color: #22D3EE;
}

img {
    border: 4px solid rgba(229,231,235,0.12);
    max-width: 80%;
    height: auto;
    margin: 4%;
    border-radius: 10px;
    box-shadow: 0 6px 18px rgba(0,0,0,.35);
}

#proj img   {
    border-width: 2px; margin: 5vh;
}
#proj table {
    margin-right: 3vw;
}

table {
    width: 100%;
    border-collapse: collapse;
    color: #E5E7EB;
}

th, td {
    border-bottom: 1px solid #94A3B8;
    padding: 10px;
    text-align: left;
}
th {
    color: #94A3B8;
    font-weight: 600;
}

#responsivehome main {
    align-items: center;
}

#responsivehome #close img {
    max-width: 55%;
    margin: 3% 4%;
}

#responsivehome main p {
    padding-right: 5%;
    padding-left: 5%;
    font-size: larger;
}

#nsbe {
    margin-top: 7vh;
}
#umoja {
    margin-top: 7vh; margin-right: 2vw;
}
#responsivelead footer {
    margin: 5vh 0;
}

#exp {
    margin-top: 5vh;
}
#responsiveexp footer {
    margin: 2vh 0;
}

#edu {
    margin-right: 10vw;
}
#responsiveedu main {
    align-items: center;
}

#responsivecsl main {
    align-items: center;
    justify-content: center;
    text-align: center;
}
#course, #skills, #lang {
    margin: 0;
    padding: 1rem;
}
#responsivecsl ul, #responsivecsl p {
    text-align: center;
}

#responsive main p img {
    max-width: 5%;
}
#responsive main p {
    margin-top: 10%;
    padding: 5%;
    font-size: large;
}
#responsive footer {
    margin: 2vh 0;
    padding: 1%;
}

/* projects area colors */
#responsivepro {
    color: #E5E7EB;
    background-color: #0F172A;
}
#responsivepro #close ul {
    margin: 28vh 0;
}

@media screen and (max-width: 1000px) {
    main {
        width: 100%;
    }
}

@media screen and (max-width: 750px) {
    #close {
        flex-direction: column;
    }

    nav {
        width: 100%;
    }

    main {
        width: 100%;
        flex-direction: column;
        border-left: none;
    }

    nav li {
        display: inline-block;
        margin: 0 1vw 1vh 1vw;
        padding: 1.2vh 2vw;
    }

    nav a {
        font-size: calc(1px + 1vw);
    }

    #head {
        text-align: center;
    }

    #responsivehome #close ul {
        margin: 4vh 0;
    }

    #responsivehome #close img {
        max-width: 70%;
        margin: 4% 0;
    }

    #responsivepro #proj table {
        margin: 0;
    }

    #responsivepro #proj img {
        margin: 0;
    }

    #responsivepro #close ul {
        margin: 4vh 0;
    }

    #responsivelead #close ul {
        margin: 6vh 0;
    }
}