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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: #ffffff;
    color: #333;
    padding: 1.5rem 1rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1); 
    position: relative;
    z-index: 10;
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    background: -webkit-linear-gradient(#667eea, #764ba2);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

main {
    flex: 1;
    width: 100%;
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    animation: fadeIn 0.8s ease-out;
}

section {
    background-color: #ffffff;
    padding: 2.5rem;
    margin-bottom: 2rem;
    border-radius: 12px;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.15); 
}

h2 {
    color: #4a4a4a;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 0.8rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    display: inline-block;
    margin-right: 15px;
    margin-bottom: 10px;
}

ul li a {
    display: inline-block;
    background: linear-gradient(to right, #667eea, #764ba2);
    color: white;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

ul li a:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(118, 75, 162, 0.4);
}

p a {
    color: #764ba2;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

p a:hover {
    color: #5a367f;
    text-decoration: underline;
}

footer {
    background-color: rgba(0, 0, 0, 0.2); 
    color: #fff;
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
    font-size: 0.9rem;
    backdrop-filter: blur(5px);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}