body.site-bg {
    font-family: sans-serif;
    color: #f1f1f1; /* light text for dark background */
    margin: 0;
    background-image: url('/img/bg.png');
    background-repeat: no-repeat;
    background-position: center center;
    background-attachment: fixed;
    background-size: cover; /* make sure it fills the screen */
}

/* ==== Container / Layout ==== */
.container {
    
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

/* ==== Main spacing ==== */
.main {
    padding: 2rem 0;
}

/* ==== Cards ==== */
.card {
    background: rgba(51, 51, 51, 0.7); /* semi-transparent dark card */
    padding: 1.25rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.6);
    color: #f1f1f1; /* ensure text inside card is light */
}

.card h2 {
    margin: 0 0 0.75rem 0;
    color: #ffffff;
}

/* ==== Projects Grid ==== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.project h3 {
    margin: 0 0 .5rem 0;
    font-size: 1.1rem;
    color: #ffffff;
}

/* ==== Buttons ==== */
.btn {
    display: inline-block;
    padding: .45rem .75rem;
    background: #4f9aff; /* lighter accent for dark bg */
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    transition: background .15s ease;
}

.btn:hover {
    background: #2171ff; /* darker hover */
}

/* ==== Links ==== */
a {
    color: #4f9aff;
    text-decoration: underline;
}

a:hover {
    opacity: .8;
}

/* ==== Responsive ==== */
@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }

    .card {
        padding: 1rem;
    }
}