* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    line-height: 1.6;
    color: #1e1e1e;
    background-color: #ffffff;
}

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

header {
    background: #ffffff;
    border-bottom: 1px solid #1f2933;
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
}

.logo {
    height: 120px;
    width: auto;
}

nav a {
    color: #12477b;
    margin-left: 20px;
    text-decoration: none;
    font-size: 0.95rem;
}

nav a:hover {
    color: #58a6ff;
}

.hero {
    background: #0d1117;
    color: #ffffff;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: auto;
    color: #c9d1d9;
}

.section {
    padding: 60px 0;
}

.section.alt {
    background: #f5f7fa;
}

.section h2 {
    margin-bottom: 25px;
    font-size: 1.8rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.card {
    padding: 25px;
    border: 1px solid #e1e4e8;
    border-radius: 6px;
    background: #ffffff;
}

.card h3 {
    margin-bottom: 10px;
}

ul {
    margin-top: 15px;
    padding-left: 20px;
}

.contact-info a {
    color: #0969da;
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

footer {
    background: #0d1117;
    color: #8b949e;
    text-align: center;
    padding: 20px 0;
    font-size: 0.85rem;
}