.main-header {
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #eee;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.merchant-logo {
    font-weight: 800;
    font-size: 18px;
    color: #0f172a;
    display: flex;
    align-items: center;
    gap: 8px;
}

.merchant-nav {
    display: flex;
    align-items: center;
    gap: 35px;
}

.merchant-nav a {
    text-decoration: none;
    color: #222;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.merchant-nav a:hover {
    color: #007bff;
}

.merchant-nav span {
    font-size: 12px;
    margin-left: 3px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-header-login {
    text-decoration: none;
    color: #334155;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 12px;
}

.btn-header-login:hover {
    color: #0f172a;
}

.btn-header-demo {
    text-decoration: none;
    background: #0d6e51;
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: 20px;
    transition: background 0.2s ease;
}

.btn-header-demo:hover {
    background: #094d38;
}