style.css

:root {
    --text-color: #ecf0f1;
    --bg-color: #101820;
    --card-color: #1a2333;
    --link-color: #64ffda;
    --hover-bg: #2e3d55;
}

[data-theme="light"] {
    --bg-color: #ffffff;
    --text-color: #101820;
    --card-color: #f0f0f0;
    --link-color: #101820;
    --hover-bg: #d0d0d0;
}

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

html, body {
    height: 100%;
    display: flex;
    flex-direction: column;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
}

.header {
    text-align: center;
    padding: 2rem;
}

.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    cursor: pointer;
    font-size: 1.5rem;
}

.content {
    flex: 1;
    padding: 2rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-color);
    border-radius: 0.9375rem;
    padding: 1rem;
    transition: transform 0.3s ease, background 0.3s ease;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-0.3125rem);
    background: var(--hover-bg);
}

.github-link {
    color: var(--link-color);
    text-decoration: none;
    font-size: 1rem;
}

footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-color);
    padding: 1rem;
    border-top: 0.125rem solid var(--hover-bg);
    width: 100%;
}

.footer-text {
    color: var(--text-color);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1rem;
}