:root {
    --grey: #F0F0F0;
    --yellow: #D4AF37;
    --black: #000000;
    --dark-grey: #595959;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.5;
    color: var(--black);
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: white;
}

header {
    background-color: white;
    color: var(--black);
    padding: 20px;
    text-align: center;
    border-bottom: 2px solid var(--yellow);
}

.logo {
    width: 100px;
    height: auto;
    margin-bottom: 10px;
}

nav {
    background-color: var(--grey);
    padding: 10px 0;
    margin-bottom: 20px;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 10px;
}

nav ul li a {
    color: var(--black);
    text-decoration: none;
    font-weight: bold;
    padding: 5px;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

nav ul li a:hover, nav ul li a:focus {
    border-color: var(--yellow);
    outline: none;
}

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

.section {
    margin-bottom: 30px;
    padding: 20px;
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border-left: 5px solid var(--yellow);
}

.icon {
    margin-right: 10px;
    color: var(--dark-grey);
}

.skill-bar {
    background-color: var(--grey);
    height: 20px;
    margin-bottom: 10px;
    border-radius: 10px;
    overflow: hidden;
}

.skill-level {
    background-color: var(--yellow);
    height: 100%;
    width: 0;
    transition: width 1s ease-out;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}