:root {
    --width: 720px;
    --font-main: Verdana, sans-serif;
    --font-secondary: Verdana, sans-serif;
    --font-scale: 1em;
    --background-color: #fff;
    --heading-color: #222;
    --text-color: #222;
    --link-color: #222;
    --visited-color: #222;
    --code-background-color: #f2f2f2;
    --code-color: #222;
    --blockquote-color: #222;
    --bar-color: #222;
    --bar-background: #e0e0e0;
}

@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #222;
        --heading-color: #ddd;
        --text-color: #ddd;
        --link-color: #ddd;
        --visited-color: #ddd;
        --code-background-color: #000;
        --code-color: #ddd;
        --blockquote-color: #ccc;
        --bar-color: #ddd;
        --bar-background: #444;
    }
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-secondary);
    font-size: var(--font-scale);
    margin: auto;
    padding: 20px;
    max-width: var(--width);
    text-align: left;
    background-color: var(--background-color);
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.5;
    color: var(--text-color);
    position: relative;
}

@media (min-width: 1024px) {
    body {
        max-width: 900px;
    }
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-main);
    color: var(--heading-color);
}

h2 {
    font-size: 1.4em;
    margin-top: 2em;
    margin-bottom: 0.5em;
    border-bottom: 1px solid var(--bar-background);
    padding-bottom: 0.3em;
}

h3 {
    font-size: 1.1em;
    margin-top: 1.5em;
    margin-bottom: 0.3em;
}

a {
    color: var(--link-color);
    cursor: pointer;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

nav a {
    margin-right: 10px;
}

footer {
    padding: 25px 0;
    text-align: center;
}

.title:hover {
    text-decoration: none;
}

.title h1 {
    font-size: 1.5em;
}

/* Education & Experience */
.timeline-item {
    margin-bottom: 1.5em;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.3em;
}

.timeline-title {
    font-weight: bold;
}

.timeline-date {
    color: #999;
    font-size: 0.9em;
}

.timeline-subtitle {
    color: #666;
    margin-bottom: 0.5em;
}

@media (prefers-color-scheme: dark) {
    .timeline-subtitle {
        color: #aaa;
    }
}

.timeline-description {
    margin-left: 1em;
}

/* Skills */
.skill-item {
    margin-bottom: 1em;
}

.skill-name {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.3em;
}

.skill-bar {
    width: 100%;
    height: 20px;
    background-color: var(--bar-background);
    border: 1px solid var(--bar-color);
}

.skill-fill {
    height: 100%;
    background-color: var(--bar-color);
    transition: width 0.3s ease;
}

/* Projects */
.project-item {
    margin-bottom: 2em;
    padding-bottom: 1.5em;
    border-bottom: 1px solid var(--bar-background);
}

.project-item:last-child {
    border-bottom: none;
}

.project-title {
    font-weight: bold;
    font-size: 1.1em;
    margin-bottom: 0.3em;
}

.project-tech {
    color: #666;
    font-size: 0.9em;
    margin-bottom: 0.5em;
}

@media (prefers-color-scheme: dark) {
    .project-tech {
        color: #aaa;
    }
}

.project-links {
    margin-top: 0.5em;
}

.project-links a {
    margin-right: 1em;
}

ul {
    margin-left: 1.5em;
}

li {
    margin-bottom: 0.3em;
}

/* Download CV Button */
.cv-button {
    display: inline-block;
    padding: 10px 20px;
    margin: 1.5em 0;
    background-color: var(--bar-color);
    color: var(--background-color);
    border: 2px solid var(--bar-color);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cv-button:hover {
    background-color: var(--background-color);
    color: var(--bar-color);
    text-decoration: none;
}

/* Section Navigation */
.section-nav {
    margin: 2em 0;
    padding: 1em 0;
    border-top: 1px solid var(--bar-background);
    border-bottom: 1px solid var(--bar-background);
}

@media (min-width: 1024px) {
    .section-nav {
        position: fixed;
        right: 20px;
        top: 120px;
        margin: 0;
        padding: 1em;
        border: 1px solid var(--bar-background);
        border-radius: 3px;
        background-color: var(--background-color);
        max-width: 150px;
    }
}

.section-nav a {
    display: block;
    margin-bottom: 10px;
    padding: 8px 12px;
    border: 1px solid var(--bar-color);
    font-size: 0.85em;
    text-align: center;
}

@media (max-width: 1023px) {
    .section-nav a {
        display: inline-block;
        margin-right: 10px;
    }
}

.section-nav a:hover {
    background-color: var(--bar-color);
    color: var(--background-color);
    text-decoration: none;
}

.section-nav a:last-child {
    margin-bottom: 0;
}