:root {
    --bg-color: #121212;
    --text-color: #f5f5f5;
    --accent-color: #29b6f6;
    --card-bg: #1e1e1e;
    --border-color: #333333;
    --focus-outline: #ffeb3b;
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding-bottom: 60px;
}

/* --- Accessibility Features --- */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent-color);
    color: #000;
    padding: 8px;
    z-index: 100;
    transition: top 0.2s;
    text-decoration: none;
    font-weight: bold;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--focus-outline);
}

*:focus-visible {
    outline: 3px solid var(--focus-outline);
    outline-offset: 2px;
}

/* --- Navigation --- */
header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent-color);
}

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

nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: border-color 0.2s;
}

nav a:hover, nav a:focus {
    border-bottom-color: var(--accent-color);
}

nav a[aria-current="page"] {
    border-bottom-color: var(--accent-color);
}

/* --- Main Layout --- */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

h1, h2, h3 {
    margin-bottom: 1rem;
    color: #ffffff;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; color: var(--accent-color); }
h3 { font-size: 1.4rem; }

p {
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
    color: #e0e0e0;
}

/* --- Projects Table --- */
.table-wrapper {
    overflow-x: auto;
    margin-top: 2rem;
}

.projects-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.projects-table caption {
    font-size: 1.1rem;
    font-weight: 600;
    color: #e0e0e0;
    text-align: left;
    padding-bottom: 1rem;
}

.projects-table th, .projects-table td {
    padding: 1rem;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--border-color);
}

.projects-table thead th {
    background-color: var(--bg-color);
    color: var(--accent-color);
    font-size: 1rem;
}

.projects-table tbody tr:last-child td {
    border-bottom: none;
}

.projects-table tbody tr:hover {
    background-color: rgba(41, 182, 246, 0.05);
}

.projects-table a {
    color: var(--accent-color);
    word-break: break-all;
}

.projects-table a:hover, .projects-table a:focus {
    color: #0288d1;
}

.status {
    display: inline-block;
    background-color: rgba(41, 182, 246, 0.1);
    color: var(--accent-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: bold;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 2rem;
    color: #888888;
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-color);
}