:root {
    --primary-color: #222;
    --accent-color: #55cc55;
    --background-color: #fff;
    --border-color: #ddd;
    --transition: 0.2s ease-in-out;
}

:root[data-theme="dark"] {
    --primary-color: #eee;
    --accent-color: #55cc55;
    --background-color: #111;
    --border-color: #333;
    --transition: 0.2s ease-in-out;
}

::selection {
    background-color: var(--accent-color);
    color: var(--background-color);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Chivo Mono", sans-serif;
    color: var(--primary-color);
    background-color: var(--background-color);
}

h1, h2, h3, h4, h5, h6 {
    font-family: "Roboto", sans-serif;
    font-weight: 600;
    color: var(--primary-color);
}

a {
    text-decoration: none;
    color: inherit;
}

a:focus, button:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

span {
    color: var(--accent-color);
    font-weight: 900;
}

header {
    background: var(--background-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 1rem;
    list-style: none;
}

.nav-links a {
    display: inline-block;
    transition: transform var(--transition), color var(--transition);
}

.nav-links a:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

#theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: color var(--transition);
}

#theme-toggle:hover {
    color: var(--accent-color);
}

.hero {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
    text-align: center;
    flex-direction: column;
    padding: 2rem;
}

.hero-social {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.hero-social a {
    color: var(--primary-color);
    font-size: 2rem;
    transition: transform var(--transition), color var(--transition);
}

.hero-social a:hover {
    color: var(--accent-color);
    transform: translateY(-5px);
}

.hero-buttons {
    margin-top: 25px;
}

.cv-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--accent-color);
    color: var(--background-color);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: background-color var(--transition), transform var(--transition);
}

.cv-button:hover {
    background-color: #44aa44;
    transform: translateY(-3px);
}

section {
    padding: 4rem 1rem;
    max-width: 900px;
    margin: auto;
}

.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.project-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

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

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.project-card:hover h3 {
    color: var(--accent-color);
    transition: color var(--transition);
}

.project-card img {
    width: 50%;
    border-radius: 6px;
    margin-bottom: 1rem;
}

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