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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9f9;
    color: #464545;
    line-height: 1.6;
}

.main-container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.header-container {
    background-color: #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem;
}

.header-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    max-width: 900px;
    margin: 0 auto;
}

.header-text {
    flex: 1 1 300px;
}

.header-text h1 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 0.5rem;
}

.header-text p {
    margin-bottom: 0.25rem;
}

.header-text a {
    color: #1a73e8;
    text-decoration: none;
}
.header-text a:hover,
.header-text a:focus {
    text-decoration: underline;
}
.header-image {
    flex: 0 1 200px;
    text-align: center;
}

.header-image img {
    width: 180px;
    height: auto;
    border-radius: 8px;
    margin-top: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
nav {
    background-color: #333;
    padding: 0.5rem 0;
}
nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style-type: none;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 0;
}
nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: background 0.3s;
}
nav a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}
.content-section {
    margin-bottom: 2rem;
}
.content-section a {
    text-decoration: none;
    color: #1a73e8;
}
.content-section a:hover,
.content-section a:focus {
    text-decoration: underline;
}
.content-section h2 {
    font-size: 1.8rem;
    color: #464545;
    margin-bottom: 0.5rem;
}
.content-section p,
.content-section ul {
    margin-top: 0.5rem;
}
.content-section ul {
    list-style-type: disc;
    padding-left: 1.5rem;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 8px;
    overflow: hidden;
}
table thead tr {
    background-color: #333;
}
table th,
table td {
    border: 1px solid #ccc;
    padding: 0.75rem;
    text-align: left;
}
table th {
    color: #fff;
    font-weight: bold;
}
footer {
    color:#f9f9f9;
    background-color: #333;
    border-top: 1px solid #ccc;
    text-align: center;
    padding: 0.5rem 0;
    font-size: 0.9 rem;
    margin-top: 2rem;
}
@media (max-width: 600px) {
    .header-text h1 {
        font-size: 2rem;
    }
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    table th,
    table td {
        font-size: 0.9rem;
        padding: 0.5rem;
    }
}