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

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

.hero-header {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-image: linear-gradient(45deg, #2980b9, #e74c3c);
    color: #fff;
}

.hero-nav ul {
    list-style-type: none;
    padding: 1rem;
    display: flex;
    justify-content: center;
}

.hero-nav ul li {
    margin: 0 1rem;
}

.hero-nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.hero-nav ul li a:hover {
    color: #ecf0f1;
}

.hero-main {
    padding: 2rem;
}

.hero-section {
    margin-bottom: 4rem;
    background-color: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
}

.skill-list {
    display: flex;
    justify-content: space-around;
}

.skill-item i {
    font-size: 1.5rem;
    margin-right: 0.5rem;
    color: #2980b9;
}

.timeline {
    position: relative;
    max-width: 760px;
    margin: 0 auto;
    padding: 0 15px;
}

.timeline-item {
    position: relative;
    padding-bottom: 30px;
}

.timeline-content h3, .timeline-content p {
    color: #2c3e50;
}

.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.project-item i {
    font-size: 1.5rem;
    margin-right: 0.5rem;
    color: #3498db;
}

footer.hero-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 10vh;
    background-color: #2c3e50;
    color: #fff;
}

.container {
    width: 90%;
    margin: 0 auto;
}

.hero-button {
    padding: 1rem 2rem;
    font-size: 1rem;
    background-color: #2980b9;
    border: none;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
}

.hero-button:hover {
    background-color: #e74c3c;
    transform: scale(1.05);
}