body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.5;
    color: #2c3e50;
    scroll-behavior: smooth;
}
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 10px 0;
    z-index: 1000;
}
nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    margin: 0 10px;
    transition: color 0.3s ease;
}
nav a:hover {
    color: #f39c12;
}
section {
    padding: 60px 20px;
    min-height: 30vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}
#home {
    background: url('media/banner.png') no-repeat center center/cover;
    color: white;
}
#about, #work, #education, #tools, #contact {
    background: #f4f4f4;
}
h1, h2 {
    margin-bottom: 15px;
}
.timeline {
    position: relative;
    padding: 0;
    max-width: 800px;
    width: 100%;
}
.timeline-item {
    margin: 10px 0;
    text-align: left;
    background: white;
    padding: 15px;
    border-left: 4px solid #f39c12;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.timeline-item h3 {
    margin: 0 0 5px;
}
.tools-list {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding: 20px;
}
.tool-item img {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}
.tool-item img:hover {
    transform: scale(1.1);
}
form {
    max-width: 600px;
    width: 100%;
}
form input, form textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
}
form button {
    padding: 10px 20px;
    border: none;
    background: #f39c12;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s ease;
}
form button:hover {
    background: #e67e22;
}
.profile-picture {
    width: 150px;
    height: auto;
    border-radius: 50%;
    margin: 20px auto;
}