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

body {
    font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", "Courier New", monospace;
    color: #c9d1d9;
    background: #0d1117;
    line-height: 1.7;
    font-size: 15px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 680px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    border-bottom: 1px solid #21262d;
}

nav .logo {
    color: #58a6ff;
    text-decoration: none;
    font-weight: 700;
}

nav .links {
    display: flex;
    gap: 1.5rem;
}

nav .links a {
    color: #8b949e;
    text-decoration: none;
    font-size: 0.9rem;
}

nav .links a:hover {
    color: #c9d1d9;
}

.dropdown {
    position: relative;
}

.dropdown-toggle {
    color: #8b949e;
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
}

.dropdown-toggle:hover {
    color: #c9d1d9;
}

.dropdown-menu {
    position: absolute;
    right: 0;
    top: 1.5rem;
    background: #161b22;
    border: 1px solid #21262d;
    padding: 0.4rem 0;
    min-width: 140px;
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown-menu a {
    display: block;
    padding: 0.3rem 0.8rem;
    color: #8b949e;
    text-decoration: none;
    font-size: 0.85rem;
}

.dropdown-menu a:hover {
    color: #c9d1d9;
    background: #21262d;
}

main {
    max-width: 680px;
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
}

section {
    margin-bottom: 3rem;
}

section h2 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #8b949e;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #21262d;
}

section p {
    color: #8b949e;
}

.hero h1 {
    font-size: 1.5rem;
    color: #c9d1d9;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.hero p {
    color: #8b949e;
}

footer {
    max-width: 680px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    border-top: 1px solid #21262d;
    font-size: 0.8rem;
    color: #484f58;
}