/* Global Styles */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --text-color: #333;
    --background-color: #f4f4f4;
}

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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background: var(--secondary-color);
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

.profile-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 3px solid var(--primary-color);
}

header h1 {
    margin-bottom: 10px;
}

/* Navigation Styles */
nav {
    background: var(--primary-color);
    padding: 10px 0;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
}

nav li {
    margin: 0 15px;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--secondary-color);
}

/* Main Content Styles */
main {
    padding: 40px 0;
}

section {
    margin-bottom: 40px;
}

h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

/* Experience and Education Styles */
.experience-item, .education-item {
    background: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

/* Skills Styles */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.skill-item {
    background: #fff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.skill-item:hover {
    transform: translateY(-5px);
}

/* Footer Styles */
footer {
    background: var(--secondary-color);
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        align-items: center;
    }

    nav li {
        margin: 10px 0;
    }
}