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

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #333;
    background: #fafafa;
    line-height: 1.6;
}

.container {
    width: min(1100px, 90%);
    margin: auto;
}

header {
    background: #0f172a;
    color: white;
    padding: 20px 0;
}

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

nav a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
}

.hero {
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    color: white;
    text-align: center;
    padding: 100px 20px;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    max-width: 700px;
    margin: auto;
    margin-bottom: 40px;
}

.button {
    display: inline-block;
    background: white;
    color: #2563eb;
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: bold;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    padding: 80px 0;
}

.features article {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .08);
}

footer {
    background: #0f172a;
    color: white;
    text-align: center;
    padding: 30px;
}

.contact-form {
    max-width: 700px;
    padding: 70px 0;
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form label {
    font-weight: bold;
}

.contact-form input,
.contact-form textarea {
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}

.contact-form button {
    border: none;
    cursor: pointer;
    margin-top: 15px;
}