/* ===== Fonts & Icons ===== */
@import url("https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,900");
@import url("fontawesome-all.min.css");

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

html, body {
    height: 100%;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 300;
    font-size: 15pt;
    line-height: 1.75em;
    color: #111;
    overflow-y: auto; /* enable scrolling */
}

/* ===== Wrapper ===== */
#wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== Fixed Background ===== */
#bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("images/sf.jpg") center center / cover no-repeat;
    z-index: -1;
}

/* ===== Header ===== */
#header {
    text-align: center;
    padding: 2em;
}

#header h1 {
    font-size: 4.35em;
    font-weight: 900;
    line-height: 1em;
    text-align: center;
}

#header p {
    text-align: center;
    font-size: 1.25em;
    font-weight: 700;
    margin-top: 0.5em;
}

/* ===== Top Navigation ===== */
#topnav ul {
    list-style: none;
    text-align: center;
    margin-bottom: 1em;
}

#topnav ul li {
    display: inline-block;
    margin: 0 1.5em;
}

#topnav ul li a {
    text-decoration: none;
    font-weight: 600;
    color: #111;
}

#topnav ul li a:hover {
    color: #348cb2;
}

/* ===== Social Icons ===== */
.icon {
    position: relative;
    text-decoration: none;
    margin: 0 0.5em;
}

.icon:before {
    font-family: 'Font Awesome 5 Free';
    font-style: normal;
    font-weight: 400;
}

.icon.solid:before {
    font-weight: 900;
}

.icon.brands:before {
    font-family: 'Font Awesome 5 Brands';
}

.icon .label {
    display: none;
}

/* ===== Main Content ===== */
#content {
    flex: 1 0 auto;
    max-width: 900px;
    margin: 0 auto;
    padding: 2em;
    text-align: center;
}

/* ===== Footer ===== */
#footer {
    text-align: center;
    flex-shrink: 0;
    padding: 1em;
}

/* ===== Experience Section Example ===== */
.experience-columns {
    display: flex;
    justify-content: center;
    gap: 4em;
    flex-wrap: wrap;
    margin-top: 2em;
}

.experience-