* {
    box-sizing: border-box;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

.center {
    text-align: center;
}

.max-width {
    max-width: 700px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    padding: 14px 26px;
    text-decoration: none;
    font-weight: 600;
    border-radius: 4px;
    display: inline-block;
}

.btn-primary {
    background: #4f7c6b;
    color: #ffffff;
}

.btn-primary:hover {
    background: #426a5b;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.85);
    color: #2b2b2b;
}

.btn-secondary:hover {
    background: #ffffff;
}

/* Sections */
.section {
    padding: 80px 0;
}

.section-light {
    background: #f6f8f7;
}

.section h2 {
    font-size: 2.2rem;
    margin-bottom: 40px;
}