body {
    margin: 0;
    padding: 0;
    font-family: 'Nunito', Arial, sans-serif;
    background: #151b24;
    color: #f0f3fa;
    min-height: 100vh;
}

.site-wrapper {
    max-width: 1200px;
    margin: 54px auto 60px;
    background: #202837;
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(20, 32, 55, 0.22);
    padding: 40px 48px 36px;
}

header {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 48px 48px 16px 48px;
    background: #232941;
    border-radius: 16px 16px 0 0;
    box-shadow: 0 1.5px 18px 10px rgba(24, 40, 42, 0.5);
}

.site-title {
    text-align: center;
    font-size: 2.4em;
    color: #fff;
    font-weight: 900;
    letter-spacing: 0.01em;
    margin-bottom: 12px;
}

nav {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 22px 0 10px 0;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 48px;
    font-weight: 600;
    font-size: 1.15em;
}

nav li {
    display: flex;
}

nav a {
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    border-radius: 2px;
    color: #c2e1ff;
    transition: color 0.2s, border-bottom 0.2s, background-color 0.2s;
    text-decoration: none;
}

nav a:hover,
nav a:focus {
    color: #f0f3fa;
    border-bottom: 2px solid #8bbcff;
}

nav a[aria-current="page"] {
    color: #8bbcff;
    border-bottom: 2px solid #8bbcff;
}

.content-section {
    max-width: 900px;
    margin: 60px auto 40px auto;
    padding: 50px 45px;
    font-size: 1.25rem;
    line-height: 1.75;
    font-weight: 400;
    color: #f0f3fa;
}

.content-section h1 {
    font-weight: 900;
    font-size: 3rem;
    margin-bottom: 1.25rem;
    color: #8bbcff;
    letter-spacing: 0.01em;
    text-align: center;
}

.content-section h2 {
    font-weight: 700;
    font-size: 2rem;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: #accdff;
}

.content-section p {
    margin-bottom: 1.5rem;
}

.content-section ul {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
    color: #cfe5ff;
}

.content-section ul li {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.content-section a {
    color: #5b96ff;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.content-section a:hover,
.content-section a:focus {
    text-decoration: underline;
    color: #8bbcff;
}