:root[data-theme="light"] {
    --primary-color: #6c99bb;
    --secondary-color: #d6d6d6;
    --accent-color: #f92672;
    --background-color: #f8f8f2;
    --card-background: #d6d6d6;
    --text-color: #272822;
    --skill-background: #b4d273;
    --card-border: #a6e22e;
    --link-color: #e5b567;
    --link-hover-color: #f92672;
    --nav-link-color: #2e2e2e;
    --nav-hover-color: #590beb;
    --heading-color: #590beb;
}

:root[data-theme="dark"] {
    --primary-color: #272822;
    --secondary-color: #3e3d32;
    --accent-color: #f92672;
    --background-color: #2e2e2e;
    --card-background: #3e3d32;
    --text-color: #d6d6d6;
    --skill-background: #797979;
    --card-border: #a6e22e;
    --link-color: #e87d3e;
    --link-hover-color: #f92672;
    --nav-link-color: #d6d6d6;
    --nav-hover-color: #797979;
    --heading-color: #797979;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
        Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

header h1,
header p {
    color: white;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem;
    text-align: center;
    position: relative;
}

.header-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.theme-toggle {
    position: absolute;
    top: 0;
    right: 0;
    background: none;
    border: none;
    color: var(--link-color);
    cursor: pointer;
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.theme-toggle:hover {
    transform: rotate(15deg);
    color: var(--link-hover-color);
    background-color: rgba(255, 255, 255, 0.1);
}

[data-theme="light"] .theme-toggle .moon-icon {
    display: block;
}

[data-theme="light"] .theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

.profile-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 1rem 0;
    object-fit: cover;
}

nav {
    background-color: var(--secondary-color);
    padding: 1rem;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

nav a {
    color: var(--nav-link-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: link(--nav-hover-color);
    color: var(--nav-hover-color);
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    margin-bottom: 3rem;
}

section#about p {
    text-align: justify;
    margin-bottom: 0.9rem;
    line-height: 1.6;
}

h1,
h2,
h3 {
    color: var(--heading-color);
}

.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.project-card {
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1rem;
    transition: transform 0.3s;
    background-color: var(--card-background);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.skill-tag {
    background-color: var(--skill-background);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    color: var(--link-color);
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--link-hover-color);
}

@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .projects {
        grid-template-columns: 1fr;
    }
}